1,499 results on '"J. Burns"'
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2. 1-Minute Pearls/Pitfalls for the Clinician
- Author
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Eileen Barrett and Sarah J Burns
- Subjects
Medicine - Published
- 2023
3. Prevalence and Correlates of Positive Mental Health Among Canadian Adults With Type 1 or Type 2 Diabetes: Results From the Canadian Community Health Survey---Mental Health
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Rachel J. Burns and Kimia Fardfini
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Adult ,Male ,Canada ,medicine.medical_specialty ,Sociodemographic Factors ,Generalized anxiety disorder ,Endocrinology, Diabetes and Metabolism ,media_common.quotation_subject ,Health Behavior ,education ,030209 endocrinology & metabolism ,Type 2 diabetes ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Prevalence ,Internal Medicine ,medicine ,Humans ,030212 general & internal medicine ,Psychiatry ,Aged ,media_common ,business.industry ,Flourishing ,General Medicine ,Middle Aged ,Mental illness ,medicine.disease ,Health Surveys ,Mental health ,3. Good health ,Cross-Sectional Studies ,Diabetes Mellitus, Type 1 ,Mental Health ,Diabetes Mellitus, Type 2 ,Community health ,Happiness ,Major depressive disorder ,Female ,business - Abstract
Objectives Current definitions of mental health are no longer limited to presence or absence of mental illness. Although dimensions of mental illness have been well studied among people with diabetes, little is known about positive mental health. Optimal positive mental health is referred to as “flourishing” and is characterized by happiness, psychological well-being and social well-being. Therefore, the purpose of this study was to examine the prevalence and correlates of flourishing mental health among Canadian adults diagnosed with diabetes. Methods Data came from participants >19 years of age in the Canadian Community Health Survey---Mental Health 2012, a national, cross-sectional survey. Positive mental health was measured with the Mental Health Continuum---Short Form, which categorizes individuals into flourishing, moderate and languishing mental health. Results Although the majority of participants with diabetes reported flourishing mental health (73.22%), flourishing mental health was more common among people without diabetes (76.56%). Among people with diabetes (n=2,024), those who were flourishing reported greater physical activity, better self-rated health, fewer comorbidities, less functional disability and were less likely to smoke compared with those who were not flourishing. Those who were flourishing were less likely to have a lifetime history of major depressive disorder or generalized anxiety disorder and were distinguished by some demographic characteristics. Conclusion Among people with diabetes, flourishing mental health was associated with distinct behavioural, health and sociodemographic correlates.
- Published
- 2021
4. Biobehavioral Research and Hematopoietic Stem Cell Transplantation: Expert Review from the Biobehavioral Research Special Interest Group of the American Society for Transplantation and Cellular Therapy
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William A. Wood, Kelly E. Rentscher, Mallory Taylor, Heather S.L. Jim, Bronwen E. Shaw, Effie W. Petersdorf, Karen L. Syrjala, Erin S. Costanzo, Anna Barata, Anela Carrazana Yero, Keayra E. Morris, Debra Lynch Kelly, Amanda Emmrich, Jennifer M. Knight, Shahrukh K. Hashmi, Kathryn E. Flynn, and Linda J. Burns
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medicine.medical_specialty ,medicine.medical_treatment ,Cell- and Tissue-Based Therapy ,Context (language use) ,Hematopoietic stem cell transplantation ,Article ,Cell therapy ,Immune Reconstitution ,Quality of life (healthcare) ,Survivorship curve ,medicine ,Immunology and Allergy ,Intensive care medicine ,Adverse effect ,Transplantation ,business.industry ,Hematopoietic Stem Cell Transplantation ,Cell Biology ,Hematology ,Special Interest Group ,United States ,Public Opinion ,Quality of Life ,Molecular Medicine ,business - Abstract
Hematopoietic stem cell transplantation (HCT) is a potentially curative treatment for many hematologic conditions. Despite advances in conditioning and supportive measures, however, there remain significant comorbidities that threaten survivorship. Adverse effects of stress-related biobehavioral processes—defined here as the interactions of behavioral, psychological, and socioenvironmental factors with biology—impact immune recovery and function and are particularly salient in the HCT context, given the importance of immune reconstitution for improved survivorship. However, biobehavioral processes have been underinvestigated in this vulnerable group compared with other cancer populations. Here the Biobehavioral Research Special Interest Group (SIG) of the American Society for Transplantation and Cellular Therapy provides an expert review to inform research directions explicating the biological correlates of behavioral symptoms and evaluate the impact of these on HCT outcomes. The goal of this expert review is to provide a foundation for advancing science that effectively integrates behavioral and biological processes to optimize quality of life and improve clinical outcomes for HCT recipients.
- Published
- 2021
5. Discovery of VNRX-7145 (VNRX-5236 Etzadroxil): An Orally Bioavailable β-Lactamase Inhibitor for Enterobacterales Expressing Ambler Class A, C, and D Enzymes
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William J. Weiss, Christopher J. Burns, Randy W. Jackson, Greg Moeck, Eugen F. Mesaros, Jodie Hamrick, Susan M Cusick, Boyd Steven A, Bin Liu, Denis M. Daigle, Cassandra L Chatwin, Lisa McLaughlin, Kaitlyn John, Daniel C. Pevear, Allison L. Zulli, Robert E. Lee Trout, Luigi Xerri, and Mark Pulse
- Subjects
Microbial Sensitivity Tests ,Pharmacology ,01 natural sciences ,Article ,beta-Lactamases ,Structure-Activity Relationship ,03 medical and health sciences ,Antibiotic resistance ,Enterobacteriaceae ,Pharmacokinetics ,In vivo ,Drug Discovery ,medicine ,Ceftibuten ,030304 developmental biology ,Cephalosporin Antibiotic ,0303 health sciences ,Dose-Response Relationship, Drug ,Molecular Structure ,biology ,Chemistry ,Prodrug ,biology.organism_classification ,In vitro ,Anti-Bacterial Agents ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,Molecular Medicine ,beta-Lactamase Inhibitors ,Bacteria ,medicine.drug - Abstract
A major antimicrobial resistance mechanism in Gram-negative bacteria is the production of β-lactamase enzymes. The increasing emergence of β-lactamase-producing multi-drug-resistant “superbugs” has resulted in increases in costly hospital Emergency Department (ED) visits and hospitalizations due to the requirement for parenteral antibiotic therapy for infections caused by these difficult-to-treat bacteria. To address the lack of outpatient treatment, we initiated an iterative program combining medicinal chemistry, biochemical testing, microbiological profiling, and evaluation of oral pharmacokinetics. Lead optimization focusing on multiple smaller, more lipophilic active compounds, followed by an exploration of oral bioavailability of a variety of their respective prodrugs, provided 36 (VNRX-7145/VNRX-5236 etzadroxil), the prodrug of the boronic acid-containing β-lactamase inhibitor 5 (VNRX-5236). In vitro and in vivo studies demonstrated that 5 restored the activity of the oral cephalosporin antibiotic ceftibuten against Enterobacterales expressing Ambler class A extended-spectrum β-lactamases, class A carbapenemases, class C cephalosporinases, and class D oxacillinases.
- Published
- 2021
6. Evolution of the hypoxia-sensitive cells involved in amniote respiratory reflexes
- Author
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Dorit Hockman, Alan J Burns, Gerhard Schlosser, Keith P Gates, Benjamin Jevans, Alessandro Mongera, Shannon Fisher, Gokhan Unlu, Ela W Knapik, Charles K Kaufman, Christian Mosimann, Leonard I Zon, Joseph J Lancman, P Duc S Dong, Heiko Lickert, Abigail S Tucker, and Clare V H Baker
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sea lamprey (Petromyzon marinus) ,neural crest ,endoderm ,neuroepithelial cells ,carotid body ,fate-mapping ,Medicine ,Science ,Biology (General) ,QH301-705.5 - Abstract
The evolutionary origins of the hypoxia-sensitive cells that trigger amniote respiratory reflexes – carotid body glomus cells, and ‘pulmonary neuroendocrine cells’ (PNECs) - are obscure. Homology has been proposed between glomus cells, which are neural crest-derived, and the hypoxia-sensitive ‘neuroepithelial cells’ (NECs) of fish gills, whose embryonic origin is unknown. NECs have also been likened to PNECs, which differentiate in situ within lung airway epithelia. Using genetic lineage-tracing and neural crest-deficient mutants in zebrafish, and physical fate-mapping in frog and lamprey, we find that NECs are not neural crest-derived, but endoderm-derived, like PNECs, whose endodermal origin we confirm. We discover neural crest-derived catecholaminergic cells associated with zebrafish pharyngeal arch blood vessels, and propose a new model for amniote hypoxia-sensitive cell evolution: endoderm-derived NECs were retained as PNECs, while the carotid body evolved via the aggregation of neural crest-derived catecholaminergic (chromaffin) cells already associated with blood vessels in anamniote pharyngeal arches.
- Published
- 2017
- Full Text
- View/download PDF
7. Development and Application of an eDNA Method to Detect the Critically Endangered Trinidad Golden Tree Frog (Phytotriades auratus) in Bromeliad Phytotelmata.
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Sarah Brozio, Chloe Manson, Eleanor Gourevitch, Thomas J Burns, Mark S Greener, J Roger Downie, and Paul A Hoskisson
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Medicine ,Science - Abstract
The use of environmental DNA (eDNA) to monitor rare and elusive species has great potential for conservation biology. Traditional surveying methods can be time-consuming, labour-intensive, subject to error or can be invasive and potentially damaging to habitat. The Trinidad golden treefrog (Phytotriades auratus) is one such species that would benefit from such an approach. This species inhabits the giant bromeliad (Glomeropitcairnia erectiflora) on two peaks on the Caribbean island of Trinidad. Traditional survey methods for this species have required the destruction of the giant bromeliad, which is the only known habitat of this frog. Here we described the development of an eDNA PCR-based assay that uses water drawn from the water-filled phytotelmata of the giant bromeliad along with the use of a synthetic DNA positive control that can be easily amplified in the bacterium Escherichia coli. The assay can detect to a DNA concentration of 1.4ng. Sampling of 142 bromeliads using this method revealed 9% were positive for P. auratus DNA. These data suggest that eDNA methods also have great potential for revealing the presence of elusive species in arboreal habitats.
- Published
- 2017
- Full Text
- View/download PDF
8. Improving medical workforce knowledge of adrenaline (epinephrine) administration in treatment of anaphylaxis in adults
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N Narayan, J Burns, and J Droste
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medicine.medical_specialty ,Educational method ,business.industry ,MEDLINE ,General Medicine ,Emergency treatment ,Critical Care and Intensive Care Medicine ,medicine.disease ,Health personnel ,Epinephrine ,Workforce ,Emergency medicine ,Emergency Medicine ,Internal Medicine ,medicine ,business ,Administration (government) ,Anaphylaxis ,medicine.drug - Abstract
Aim: To compare results of repeated surveys (2010, 2015 and 2017) regarding the knowledge of the medical workforce potentially involved in adrenaline administration for the emergency treatment of anaphylaxis in adults Methods: Convenience samples of medical (and advanced nursing) staff were surveyed on three separate occasions (2010, 2015 and 2017). Several educational methods were used to increase awareness of the specific administration of adrenaline. Results: Overall, knowledge of the medical workforce regarding correct first dose adrenaline administration improved from 15% in 2010 to 49% in 2015 and finally 63% in 2017. Conclusion: This survey comparison shows knowledge of the medical workforce regarding adrenaline administration for treatment of anaphylaxis in adults can be significantly improved by employing a variety of educational methods.
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- 2021
9. Cancer and occupational exposure to pesticides: an umbrella review
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Carol J. Burns and Daland R. Juberg
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medicine.medical_specialty ,Epidemiology ,Colorectal cancer ,Review Article ,010501 environmental sciences ,Toxicology ,01 natural sciences ,03 medical and health sciences ,0302 clinical medicine ,Neoplasms ,Occupational Exposure ,Environmental health ,Animals ,Humans ,Medicine ,030212 general & internal medicine ,Pesticides ,Cancer ,0105 earth and related environmental sciences ,Exposure assessment ,Farmers ,business.industry ,Farming ,Confounding ,Public Health, Environmental and Occupational Health ,Pesticide ,medicine.disease ,Inclusion and exclusion criteria ,Biological plausibility ,business - Abstract
Purpose The aim was to identify the scope of the epidemiology literature reviewed regarding the risk of cancer as related to occupational exposure to pesticides and to compare regulatory toxicity results where feasible. Methods Review studies of breast, lung, prostate, non-Hodgkin lymphoma, and colorectal cancer were identified from the published literature from 2010 to 2020 using a priori inclusion and exclusion criteria. Epidemiology observations were first assessed and then compared against carcinogenicity profiles derived from regulatory toxicology studies. Results Several active ingredients were associated with specific cancer but overall, there was neither strong nor consistent epidemiologic data supportive of a positive association between pesticide exposure in occupational settings and cancer. Authors noted common themes related to the heterogeneity of exposure, study design, control for confounders, and the challenge to collect these data reliably and validly with an adequate sample size. Toxicology studies in laboratory animals that assessed carcinogenic potential did not reveal cancer outcomes that were concordant with reported epidemiologic findings. Conclusions Farming and pesticides represent diverse exposures that are difficult to quantify in epidemiologic studies. Going forward, investigators will need creative and novel approaches for exposure assessment. Integration of epidemiologic and toxicological studies with attention to biological plausibility, mode of toxicological action and relevance to humans will increase the ability to better assess associations between pesticides and cancer.
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- 2021
10. Combined treatment with enteric neural stem cells and chondroitinase ABC reduces spinal cord lesion pathology
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Nicholas D. James, Nikhil Thapar, Alan J. Burns, Elizabeth J. Bradbury, Benjamin Jevans, Conor J. McCann, Emily R. Burnside, and Clinical Genetics
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Pathology ,medicine.medical_specialty ,transplantation [Neural Stem Cells] ,Central nervous system ,Medicine (miscellaneous) ,Spinal cord injury ,Stem cells ,Chondroitin ABC Lyase ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,lcsh:Biochemistry ,Neural Stem Cells ,medicine ,Animals ,Autologous transplantation ,lcsh:QD415-436 ,ddc:610 ,Axon ,Spinal Cord Injuries ,lcsh:R5-920 ,business.industry ,Research ,therapy [Spinal Cord Injuries] ,Cell Biology ,medicine.disease ,Spinal cord ,pharmacology [Chondroitin ABC Lyase] ,Axons ,Neural stem cell ,Nerve Regeneration ,Rats ,Enteric neural stem cells ,Transplantation ,medicine.anatomical_structure ,Chondroitin Sulfate Proteoglycans ,Spinal Cord ,Molecular Medicine ,ChABC ,Stem cell ,business ,lcsh:Medicine (General) - Abstract
Background Spinal cord injury (SCI) presents a significant challenge for the field of neurotherapeutics. Stem cells have shown promise in replenishing the cells lost to the injury process, but the release of axon growth-inhibitory molecules such as chondroitin sulfate proteoglycans (CSPGs) by activated cells within the injury site hinders the integration of transplanted cells. We hypothesised that simultaneous application of enteric neural stem cells (ENSCs) isolated from the gastrointestinal tract, with a lentivirus (LV) containing the enzyme chondroitinase ABC (ChABC), would enhance the regenerative potential of ENSCs after transplantation into the injured spinal cord. Methods ENSCs were harvested from the GI tract of p7 rats, expanded in vitro and characterised. Adult rats bearing a contusion injury were randomly assigned to one of four groups: no treatment, LV-ChABC injection only, ENSC transplantation only or ENSC transplantation+LV-ChABC injection. After 16 weeks, rats were sacrificed and the harvested spinal cords examined for evidence of repair. Results ENSC cultures contained a variety of neuronal subtypes suitable for replenishing cells lost through SCI. Following injury, transplanted ENSC-derived cells survived and ChABC successfully degraded CSPGs. We observed significant reductions in the injured tissue and cavity area, with the greatest improvements seen in the combined treatment group. ENSC-derived cells extended projections across the injury site into both the rostral and caudal host spinal cord, and ENSC transplantation significantly increased the number of cells extending axons across the injury site. Furthermore, the combined treatment resulted in a modest, but significant functional improvement by week 16, and we found no evidence of the spread of transplanted cells to ectopic locations or formation of tumours. Conclusions Regenerative effects of a combined treatment with ENSCs and ChABC surpassed either treatment alone, highlighting the importance of further research into combinatorial therapies for SCI. Our work provides evidence that stem cells taken from the adult gastrointestinal tract, an easily accessible source for autologous transplantation, could be strongly considered for the repair of central nervous system disorders.
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- 2021
11. Primary Alopecia Neoplastica: A Novel Case Report and Literature Review
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James T. Pathoulas, Chloe J. Walker, Kelly E. Flanagan, Isabel Pupo Wiss, Laura J. Burns, Kristine M. Cornejo, and Maryanne M. Senna
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medicine.medical_specialty ,Alopecia neoplastica ,integumentary system ,Novel Insights from Clinical Practice ,business.industry ,Medicine ,Dermatology ,business - Abstract
Alopecia neoplastica (AN) is caused by neoplastic cells damaging hair follicles, resulting in patchy hair loss like cicatricial alopecia and alopecia areata. AN has predominantly described cutaneous metastasis to the scalp from primary visceral malignant tumors. Less frequently, AN results from a primary scalp neoplasm. Compared to “secondary AN,” there is a paucity of literature on “primary AN.” Herein, we present a comprehensive literature review of primary AN and introduce a unique case of amelanotic melanoma causing primary AN. Including our presented case, 11 cases of primary AN have been reported with causative scalp neoplasms including angiosarcoma, hemangioendothelioma, syringomatous carcinoma, ectopic extramammary Paget’s disease, and primary desmoplastic melanoma. 27.3% (3 of 11) of cases were misdiagnosed and treated for a primary alopecia, and 36.4% (4 of 11) of lesions were present for multiple years or an unknown amount of time, likely due to difficulty in recognizing scalp lesion or misdiagnosis. All patients required surgical excision with 36.4% (4 of 11) requiring chemotherapy, radiation, or photodynamic therapy. Two patients with scalp angiosarcoma died from their aggressive disease. Due to the risks of malignant primary AN if allowed to progress, primary AN should be considered in patients presenting with scarring alopecia.
- Published
- 2021
12. Dopamine secreting adrenal tumor—ganglioneuroma rather than pheochromocytoma: case report
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Alicia J Burns, Kevin M. Sullivan, Maria S. Tretiakova, Eun K Koh, and Nicole K. Zern
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medicine.medical_specialty ,Adenoma ,business.industry ,Case Report ,medicine.disease ,Malignancy ,Asymptomatic ,Pheochromocytoma ,03 medical and health sciences ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Vomiting ,Medicine ,030211 gastroenterology & hepatology ,Surgery ,Histopathology ,Radiology ,Ganglioneuroma ,medicine.symptom ,Differential diagnosis ,business - Abstract
Ganglioneuromas are rare, benign, well-differentiated neural crest tumors arising in the paravertebral sympathetic chain, and are classically non-secretory and clinically asymptomatic. As the diagnosis of ganglioneuroma is based on histopathology, the clinical presentation prior to surgical excision often mirrors that of pheochromocytoma or adrenal cortical adenoma. We describe a case of an incidentally found right sided calcified adrenal mass with evidence of marked dopamine excess, suspicious for pheochromocytoma in a 70-year-old female. The patient endorsed a 6-month history of intermittent right flank pain and a 2-year history of weight loss and fatigue. She reported mild symptoms of hypomania but denied other symptoms of dopamine excess including agitation, anxiety, nausea, and vomiting. Exam revealed isolated mild hypertension. The imaging features of this mass were concerning for malignancy including the presence of macrocalcification and irregular borders. After preoperative alpha blockade, the patient underwent open right adrenalectomy and the final pathology was consistent with ganglioneuroma rather than pheochromocytoma. Following resection, the dopamine level normalized, confirming the resected right adrenal ganglioneuroma as the source of dopamine excess. This case represents a rare presentation of dopamine-secreting adrenal ganglioneuroma. This illustrates that although rare, ganglioneuroma should be included on the differential diagnosis for functional adrenal tumors.
- Published
- 2020
13. A New Standard in Graft-versus-Host Disease Prophylaxis? An Introduction to Blood and Marrow Transplant Clinical Trials Network 1703
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Bryce Waldman, Linda J. Burns, Daniel J. Weisdorf, Zachariah DeFilipp, Aaron L. Leppin, William A. Wood, Nandita Khera, Steven Z. Pavletic, and Samantha Jaglowski
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Oncology ,medicine.medical_specialty ,Transplantation Conditioning ,Cyclophosphamide ,Graft vs Host Disease ,chemical and pharmacologic phenomena ,Disease ,Article ,03 medical and health sciences ,0302 clinical medicine ,Bone Marrow ,immune system diseases ,Multicenter trial ,Internal medicine ,medicine ,Humans ,Multicenter Studies as Topic ,Randomized Controlled Trials as Topic ,Transplantation ,business.industry ,Hematopoietic Stem Cell Transplantation ,Hematology ,Mycophenolic Acid ,medicine.disease ,Tacrolimus ,Clinical trial ,surgical procedures, operative ,Graft-versus-host disease ,030220 oncology & carcinogenesis ,Methotrexate ,Unrelated Donors ,business ,030215 immunology ,medicine.drug - Abstract
Effective immunosuppressive regimens to prevent the development of graft-versus-host disease (GVHD) are essential to the success of allogeneic hematopoietic cell transplantation (HCT). After revolutionizing haploidentical transplantation, post-transplantation cyclophosphamide (PTCy) is now being evaluated for HCT performed from related and unrelated donors. In this setting, two recent randomized studies have demonstrated lower rates of GVHD and superior GVHD-free, relapse-free survival with PTCy as compared to conventional GVHD prophylaxis. The Blood and Marrow Transplant Clinical Trials Network (BMT CTN) is currently conducting a large, randomized phase III, multicenter trial (BMT CTN 1703) comparing PTCy/tacrolimus/mycophenolate mofetil to tacrolimus/methotrexate as GVHD prophylaxis regimens in reduced-intensity allogeneic HCT. In this introductory manuscript, we review the ongoing study, highlight its importance to field, and explore the possible implications of results on clinical practice.
- Published
- 2020
14. Health Behavior Maintenance
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Lisa Auster-Gussman, Alexander J. Rothman, and Rachel J. Burns
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business.industry ,Behavior change ,Regulatory focus theory ,Medicine ,Health behavior ,business ,Social psychology ,Self-determination theory - Published
- 2020
15. Return-to-Work Guidelines and Programs for Post-Hematopoietic Cell Transplantation Survivors: An Initial Survey
- Author
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Linda J. Burns, Neel S Bhatt, Bronwen E. Shaw, Stephanie J. Lee, Karen L. Syrjala, William A. Wood, Navneet S. Majhail, and Rachel B. Salit
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Adult ,medicine.medical_specialty ,Return to work ,Article ,03 medical and health sciences ,Return to Work ,0302 clinical medicine ,Surveys and Questionnaires ,hemic and lymphatic diseases ,Survivorship curve ,Humans ,Medicine ,Survivors ,Child ,Response rate (survey) ,Transplantation ,Hematopoietic cell ,business.industry ,Hematopoietic Stem Cell Transplantation ,Hematology ,surgical procedures, operative ,Unemployment ,030220 oncology & carcinogenesis ,Family medicine ,business ,030215 immunology - Abstract
BACKGROUND: Hematopoietic cell transplantation (HCT) requires absence from work, with potential consequences of unemployment and early retirement. Risk factors for failure to return to work (RTW) following HCT have been reported, but there is little information about how transplant centers facilitate the RTW transition for their post-HCT patients. In the current study, we aimed to determine: 1) whether transplant centers have guidelines for RTW post-HCT and the consistency of these guidelines, and 2) whether transplant centers have RTW programs for their patients and the characteristics of these programs. METHODS: We surveyed representatives from 150 adult transplant centers regarding their RTW guidelines and RTW programs. Centers were selected if they performed at least 50 HCTs (autologous [auto] and/or allogeneic [allo]) per year. The online survey contained 32 open and closed-ended questions and 3 questions each of responders’ demographic and center information. RESULTS: We received completed surveys from 45 centers (30% response rate). Forty-four percent of centers reported having RTW guidelines. While all centers recommend that their auto recipients RTW at 6 months or less after HCT, guidelines for allo recipients ranged from 4 months to greater than a year after HCT before RTW. Jobs that involved interacting with children, sick people and animals were considered to be reasons for delaying RTW by most centers. While 87% of centers endorsed that RTW is a problem for post-HCT patients, only 36% responded that they have RTW programs for their patients. The majority validated that RTW programs would be either somewhat helpful (36%) or very helpful (51%) for their patients. CONCLUSIONS: In responding HCT centers, a majority believes that RTW is a problem for patients after HCT. However, consistent guidelines and RTW programs are lacking. With increasing numbers of HCT survivors, efforts toward creating standardized guidelines and developing RTW programs are needed.
- Published
- 2020
16. Pathways for N-Nitroso Compound Formation: Secondary Amines and Beyond
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Martin A. Ott, Rocío López-Rodríguez, Michael J. Burns, James A. McManus, and Natasha S. Murphy
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010405 organic chemistry ,Chemistry ,Manufacturing process ,Organic Chemistry ,Nitroso ,010402 general chemistry ,01 natural sciences ,Medicinal chemistry ,0104 chemical sciences ,Ranitidine ,chemistry.chemical_compound ,Valsartan ,Nitrosamine ,Nitrosation ,medicine ,Physical and Theoretical Chemistry ,medicine.drug - Abstract
Recent drug recalls (e.g., valsartan and ranitidine) linked to the discovery of nitrosamine impurities have led to increased regulatory scrutiny in the manufacturing process of marketed medicines, ...
- Published
- 2020
17. Pneumomediastinum, subcutaneous emphysema and pneumorrhachis following cocaine insufflation: a case report
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J Burns, T Jaconelli, and A Roby
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Insufflation ,Acute coronary syndrome ,Inhalation ,Thoracic spine ,business.industry ,Pneumorrhachis ,General Medicine ,Emergency department ,respiratory system ,Critical Care and Intensive Care Medicine ,medicine.disease ,Anesthesia ,Emergency Medicine ,Internal Medicine ,Medicine ,Pneumomediastinum ,medicine.symptom ,business ,Subcutaneous emphysema - Abstract
A case report on a 36-year-old male patient presenting to the emergency department (ED) with chest tightness, nasal sounding voice and subcutaneous emphysema 72 hours after the nasal insufflation of approximately 0.5g of cocaine. A plain radiograph of the chest demonstrated an extensive pneumomediastinum with subcutaneous emphysema extending into his neck. A computerised tomography (CT) scan confirmed the above findings, along with a pneumorrhachis of the thoracic spine. He was admitted locally for further investigation and observation. Cocaine is the second most used illicit drug in the UK. The associated complications of cocaine can vary from acute coronary syndrome to acute psychosis. Pulmonological trauma secondary to cocaine misuse is commonly associated with inhalation of cocaine; we present this rare case of subcutaneous emphysema, pneumomediastinum and pneumorrhachis secondary to nasal insufflation. It is believed that deep nasal insufflation of cocaine is followed by forceful Valsalva manoeuvre, which allows for the rapid absorption of the drug and increases the euphoric effect. This forceful inhalation can lead to barotrauma and leakage of air into the posterior mediastinum.
- Published
- 2020
18. Controlling a Cohort: Use of Mirabilis-Based Purge Calculations to Understand Nitrosamine-Related Risk and Control Strategy Options
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Andrew Teasdale, Michael J. Burns, Eric L. Elliott, and Barber Christopher Gordon
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010405 organic chemistry ,business.industry ,Organic Chemistry ,010402 general chemistry ,01 natural sciences ,Purge ,0104 chemical sciences ,Risk evaluation ,chemistry.chemical_compound ,Valsartan ,chemistry ,Nitrosamine ,Environmental health ,Cohort ,medicine ,sense organs ,Physical and Theoretical Chemistry ,skin and connective tissue diseases ,business ,medicine.drug - Abstract
The recent discovery of nitrosamines within marketed drugs, such as Valsartan, has led to changes within the regulatory landscape. Most notably, the requirement for a risk evaluation of the presenc...
- Published
- 2020
19. A Phase 2 Trial of KIR-Mismatched Unrelated Donor Transplantation Using in Vivo T Cell Depletion with Antithymocyte Globulin in Acute Myelogenous Leukemia: Children's Oncology Group AAML05P1 Study
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Paul J. Orchard, Robert B. Gerbing, Robert Iannone, Yi-Cheng Wang, Todd A. Alonzo, Stella M. Davies, Soheil Meshinchi, Sandeep Soni, Shalini Shenoy, E. Anders Kolb, Wing Leung, and Linda J. Burns
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Oncology ,Transplantation ,medicine.medical_specialty ,Donor selection ,business.industry ,medicine.medical_treatment ,chemical and pharmacologic phenomena ,Hematology ,Hematopoietic stem cell transplantation ,Disease ,medicine.disease ,03 medical and health sciences ,Leukemia ,Myelogenous ,0302 clinical medicine ,immune system diseases ,030220 oncology & carcinogenesis ,Cord blood ,Internal medicine ,otorhinolaryngologic diseases ,medicine ,Stem cell ,business ,030215 immunology - Abstract
Patients with acute myelogenous leukemia (AML) who undergo killer immunoglobulin-like receptor (KIR)-mismatched haploidentical hematopoietic stem cell transplantation (HSCT) have improved survival. Children's Oncology Group AAML05P1 is a prospective phase 2 trial of unrelated donor (URD) HSCT in which KIR typing of donors was available to the treating physician at donor selection, aiming to determine feasibility (defined as the ability to obtain donor samples from URDs and obtain KIR data before transplantation) of prospective selection of KIR-mismatched donors and effect on outcomes. Patients age ≤30 years with high-risk AML at presentation or relapsed AML were eligible; the study accrued 90 evaluable patients. After enrollment, as many as 5 potential URD samples were KIR-typed (including gene expression) in a central laboratory and results reported to the treating physician, who made the final donor selection. Cases were categorized as KIR-matched or KIR-mismatched using different published strategies. Overall survival (OS), disease-free survival (DFS), and relapse did not differ significantly by KIR mismatch status. Acute graft-versus-host disease (GVHD) was significantly lower in recipients of KIR-mismatched stem cells (35% versus 60%; P = .027). We examined DFS according to time to natural killer (NK) receptor recovery after HSCT. NK p44 recovery was significantly associated with KIR mismatch and with decreased DFS and increased relapse risk in multivariate Cox analysis (P = .006 and .009, respectively). We show that prospective selection of URD according to KIR type was feasible, acute GVHD was reduced, but survival did not differ using any model of KIR mismatch. However, the study enrolled mostly matched transplants, so ligand-ligand mismatch was rare, and thus the sample size was insufficient to determine potential benefit according to this model. Cord blood recipients demonstrated a trend toward improved DFS with KIR mismatch, but the study was not powered to detect a difference in this small subset of patients. Our data suggest that recovery of NK receptor expression might influence DFS after HSCT.
- Published
- 2020
20. Late effects after ablative allogeneic stem cell transplantation for adolescent and young adult acute myeloid leukemia
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Yoshihiro Inamoto, Cesar O. Freytes, Soyoung Kim, David I. Marks, Linda J. Burns, Siddhartha Ganguly, Sunita Nathan, Michael Kent, Ruta Brazauskas, Jane L. Liesveld, Martha Arellano, Alicia Rovó, Minoo Battiwalla, Stephanie Bo-Subait, Bronwen E. Shaw, Saurabh Chhabra, Catherine J. Lee, Zachariah DeFilipp, Richard F. Olsson, Kimberly A. Kasow, Rachel Phelan, Sachiko Seo, Mark R. Litzow, Navneet S. Majhail, Seth J. Rotz, Peiman Hematti, Peter J. Shaw, Gerhard C. Hildebrandt, Jean A. Yared, Nosha Farhadfar, Sherif M. Badawy, Kristin Page, Heather R. Tecca, Betty K. Hamilton, David Buchbinder, Neel S. Bhatt, Hillard M. Lazarus, and Lori Muffly
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medicine.medical_specialty ,Transplantation Conditioning ,Adolescent ,Clinical Trials and Observations ,medicine.medical_treatment ,Graft vs Host Disease ,Gastroenterology ,Young Adult ,Recurrence ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Humans ,Cumulative incidence ,610 Medicine & health ,Chemotherapy ,business.industry ,Hazard ratio ,Hematopoietic Stem Cell Transplantation ,Myeloid leukemia ,Hematology ,Total body irradiation ,medicine.disease ,Chemotherapy regimen ,Transplantation ,Leukemia, Myeloid, Acute ,Leukemia ,business - Abstract
There is marked paucity of data regarding late effects in adolescents and young adults (AYAs) who undergo myeloablative conditioning (MAC) allogeneic hematopoietic cell transplantation (HCT) for acute myeloid leukemia (AML). We evaluated late effects and survival in 826 1-year disease-free survivors of MAC HCT for AYA AML, with an additional focus on comparing late effects based upon MAC type (total body irradiation [TBI] vs high-dose chemotherapy only). The estimated 10-year cumulative incidence of subsequent neoplasms was 4% (95% confidence interval [CI], 2%-6%); 10-year cumulative incidence of nonmalignant late effects included gonadal dysfunction (10%; 95% CI, 8%-13%), cataracts (10%; 95% CI, 7%-13%), avascular necrosis (8%; 95% CI, 5%-10%), diabetes mellitus (5%; 95% CI, 3%-7%), and hypothyroidism (3%; 95% CI, 2%-5%). Receipt of TBI was independently associated with a higher risk of cataracts only (hazard ratio [HR], 4.98; P < .0001) whereas chronic graft-versus-host disease (cGVHD) was associated with an increased risk of cataracts (HR, 3.22; P = .0006), avascular necrosis (HR, 2.49; P = .006), and diabetes mellitus (HR, 3.36; P = .03). Estimated 10-year overall survival and leukemia-free survival were 73% and 70%, respectively, and did not differ on the basis of conditioning type. In conclusion, late effects among survivors of MAC HCT for AYA AML are frequent and are more closely linked to cGVHD than type of conditioning.
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- 2020
21. Predictors of Loss to Follow-Up Among Pediatric and Adult Hematopoietic Cell Transplantation Survivors
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Rammurti T. Kamble, Anita D'Souza, Leslie Lehmann, Kirk R. Schultz, Miguel Angel Diaz, Nandita Khera, Anita J. Kumar, Karen K. Ballen, Siddhartha Ganguly, Yachiyo Kuwatsuka, Wael Saber, Susana R. Marino, Sachiko Seo, Ruta Brazauskas, Baldeep Wirk, Shahrukh K. Hashmi, Christopher Bredeson, Yoshihiro Inamoto, Khalid Bo-Subait, Jean A. Yared, Gregory A. Hale, Navneet S. Majhail, Akshay Sharma, Harry C. Schouten, Saurabh Chhabra, Cesar O. Freytes, Jason Tay, Christopher E. Dandoy, Kehinde Adekola, Bronwen E. Shaw, Stefan O. Ciurea, David Gómez Almaguer, Hasan Hashem, Amir Steinberg, Hemant S. Murthy, Raquel M. Schears, Ayami Yoshimi, Linda J. Burns, David Szwajcer, David I. Marks, Tami John, Richard F. Olsson, Charles F. LeMaistre, William A. Wood, Jan Cerny, Susan K. Parsons, David Buchbinder, Usama Gergis, Nosha Farhadfar, Theresa Hahn, Mahmoud Aljurf, Hélène Schoemans, Sherif M. Badawy, Bipin N. Savani, Sara Beattie, Hillard M. Lazarus, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, MUMC+: MA Hematologie (9), and Interne Geneeskunde
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Transplantation Conditioning ,AYA ,CHILDHOOD ,ADOLESCENT ,outcomes ,CANCER SURVIVORS ,immune system diseases ,hemic and lymphatic diseases ,Medicine ,Cumulative incidence ,Survivors ,Child ,intervention ,OUTCOMES ,Hematology ,Incidence (epidemiology) ,Stem cell transplantation ,Hematopoietic Stem Cell Transplantation ,transition ,health ,PREVALENCE ,surgical procedures, operative ,survivor ,HEALTH ,Survivor ,Life Sciences & Biomedicine ,INTERVENTION ,TRANSITION ,Adult ,medicine.medical_specialty ,Bone marrow transplantation ,Immunology ,prevalence ,Lost to follow-up ,stem cell transplantation ,Article ,Internal medicine ,Humans ,Transplantation, Homologous ,care ,Aged ,Transplantation ,Science & Technology ,business.industry ,Proportional hazards model ,CARE ,medicine.disease ,Confidence interval ,Lymphoma ,business ,Follow-Up Studies - Abstract
Follow-up is integral for hematopoietic cell transplantation (HCT) care to ensure surveillance and intervention for complications. We characterized the incidence of and predictors for being lost to follow-up. Two-year survivors of first allogeneic HCT (10,367 adults and 3865 children) or autologous HCT (7291 adults and 467 children) for malignant/nonmalignant disorders between 2002 and 2013 reported to the Center for International Blood and Marrow Transplant Research were selected. The cumulative incidence of being lost to follow-up (defined as having missed 2 consecutive follow-up reporting periods) was calculated. Marginal Cox models (adjusted for center effect) were fit to evaluate predictors. The 10-year cumulative incidence of being lost to follow-up was 13% (95% confidence interval [CI], 12% to 14%) in adult allogeneic HCT survivors, 15% (95% CI, 14% to 16%) in adult autologous HCT survivors, 25% (95% CI, 24% to 27%) in pediatric allogeneic HCT survivors, and 24% (95% CI, 20% to 29%) in pediatric autologous HCT survivors. Factors associated with being lost to follow-up include younger age, nonmalignant disease, public/no insurance (reference: private), residence farther from the tranplantation center, and being unmarried in adult allogeneic HCT survivors; older age and testicular/germ cell tumor (reference: non-Hodgkin lymphoma) in adult autologous HCT survivors; older age, public/no insurance (reference: private), and nonmalignant disease in pediatric allogeneic HCT survivors; and older age in pediatric autologous HCT survivors. Follow-up focusing on minimizing attrition in high-risk groups is needed to ensure surveillance for late effects. ispartof: BIOLOGY OF BLOOD AND MARROW TRANSPLANTATION vol:26 issue:3 pages:553-561 ispartof: location:United States status: published
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- 2020
22. New HER2-negative breast cancer subtype responsive to anti-HER2 therapy identified
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Lance G. Laing, Sajjad M. Soltani, Benjamin E. Rich, Brian Francis Sullivan, SM Kharbush, David J. Burns, Jodie R. Pietruska, Ian A. MacNeil, Douglas M. Hawkins, and Nicole G. Osterhaus
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0301 basic medicine ,Oncology ,Cell signaling ,Cancer Research ,medicine.medical_specialty ,Receptor, ErbB-2 ,medicine.medical_treatment ,Population ,Antineoplastic Agents ,Breast Neoplasms ,Targeted therapy ,Mice ,03 medical and health sciences ,Breast cancer ,0302 clinical medicine ,HER2 ,Internal medicine ,Biomarkers, Tumor ,Electric Impedance ,medicine ,Animals ,Humans ,skin and connective tissue diseases ,education ,neoplasms ,education.field_of_study ,Hematology ,business.industry ,Xenograft ,Cancer ,General Medicine ,medicine.disease ,Xenograft Model Antitumor Assays ,Clinical trial ,030104 developmental biology ,030220 oncology & carcinogenesis ,Biomarker (medicine) ,Female ,Original Article – Cancer Research ,business ,Signal Transduction - Abstract
Purpose HER2 signaling functional activity may be important to measure in addition to HER2 protein quantification when identifying patients eligible for HER2 therapies. A HER2 Signaling Function (CELx HSF) Test for HER2-negative patients uses patient’s live tumor cells on a biosensor to identify patients with abnormally high HER2-related signaling (HSFs+) likely to respond to anti-HER2 therapies. Methods The CELx HSF test was employed to: (1) characterize the sensitivity and specificity of the test to detect abnormal levels of HER2 signaling; (2) evaluate the inhibitory effectiveness of five different anti-HER2 therapies; (3) assess the correlation between CELx HSF test detection of abnormal HER2 signaling and response to HER2 therapy using xenograft models; and (4) confirm the prevalence of abnormal HER2 signaling amongst HER2-negative breast cancer patients (HER2−/HSFs+). Results HER2−/HSFs+ breast cancer patient samples were identified and showed sensitivity to five approved anti-HER2 therapies. Xenograft studies using both HER2+ and HER2− cell lines confirmed that CELx HER2 signaling status better predicts HER2 inhibitor efficacy than HER2 receptor status. In a study of 114 HER2-negative breast tumor patient samples, 27 (23.7%; 95% CI = 17–32%) had abnormal HER2 signaling (HSFs+). A ROC curve constructed with this dataset projects the CELx HSF Test would have greater than 90% sensitivity and specificity to detect the HER2−/HSFs+ patient population. Conclusions The CELx HSF test is a well-characterized functional biomarker assay capable of identifying dynamic HER2-driven signaling dysfunction in tumor cells from HER2-negative breast cancer patients. This test has demonstrated efficacy of various HER2 targeted therapies in live tumor cells from the HSFs+ population and correlated the test result to HER2 drug response in mouse xenograft studies. The proportion of HER2-negative breast cancer patients found to have abnormal HER2 signaling in a 114 patient sample study, 20–25%, is significant. A clinical trial to evaluate the efficacy of anti-HER2 therapies in this patient population is warranted.
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- 2020
23. Retinoic Acid Accelerates the Specification of Enteric Neural Progenitors from In-Vitro-Derived Neural Crest
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James O.S. Hackland, Antigoni Gogolou, Conor J. McCann, Alan J. Burns, Anestis Tsakiridis, Nikhil Thapar, Peter W. Andrews, Thomas J. R. Frith, Ivana Barbaric, Harry Moore, Zoe Hewitt, and Clinical Genetics
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0301 basic medicine ,Time Factors ,Hirschsprung disease ,Population ,Tretinoin ,Biology ,Biochemistry ,Enteric Nervous System ,Cell Line ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Neural Stem Cells ,Report ,retinoic acid ,Genetics ,medicine ,Animals ,Humans ,human ,Progenitor cell ,cell transplantation ,Induced pluripotent stem cell ,education ,Neurons ,education.field_of_study ,Neural tube ,Neural crest ,Vagus Nerve ,Cell Biology ,embryonic stem cells ,Embryonic stem cell ,Transplantation ,030104 developmental biology ,medicine.anatomical_structure ,Neural Crest ,Enteric nervous system ,pluripotent stem cells ,Neuroscience ,030217 neurology & neurosurgery ,Developmental Biology ,Signal Transduction - Abstract
Summary The enteric nervous system (ENS) is derived primarily from the vagal neural crest, a migratory multipotent cell population emerging from the dorsal neural tube between somites 1 and 7. Defects in the development and function of the ENS cause a range of enteric neuropathies, including Hirschsprung disease. Little is known about the signals that specify early ENS progenitors, limiting progress in the generation of enteric neurons from human pluripotent stem cells (hPSCs) to provide tools for disease modeling and regenerative medicine for enteric neuropathies. We describe the efficient and accelerated generation of ENS progenitors from hPSCs, revealing that retinoic acid is critical for the acquisition of vagal axial identity and early ENS progenitor specification. These ENS progenitors generate enteric neurons in vitro and, following in vivo transplantation, achieved long-term colonization of the ENS in adult mice. Thus, hPSC-derived ENS progenitors may provide the basis for cell therapy for defects in the ENS., Highlights • Retinoic acid alters the axial identity of hPSC-derived neural crest cells • ENS progenitor markers are upregulated in response to RA • ENS progenitors are capable of generating enteric neurons in vitro • hPSC ENS progenitors colonize the ENS of mice following long-term transplantation, In this article, Frith and colleagues show that retinoic acid (RA) signaling alters the axial identity of hPSC-derived neural crest cells in a time- and dose-dependent manner. They utilized this to derive enteric nervous system (ENS) progenitors from hSPCs, which can differentiate to enteric neurons in vitro and colonize the ENS of adult mice following long-term transplantation.
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- 2020
24. Male-specific late effects in adult hematopoietic cell transplantation recipients: a systematic review from the Late Effects and Quality of Life Working Committee of the Center for International Blood and Marrow Transplant Research and Transplant Complications Working Party of the European Society of Blood and Marrow Transplantation
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Shahrukh K. Hashmi, Jean A. Yared, Arthur Flatau, Sunita Nathan, Yoshihiro Inamoto, Dipnarine Maharaj, Bipin N. Savani, Lana Desnica Grkovic, André Tichelli, Mahmoud Aljurf, Stephanie M. Smith, Rachel Phelan, Hélène Schoemans, Richard J. Ross, Lauren M. Walker, Robert Peter Gale, Zachariah DeFilipp, Daniel Wolff, Karen C. Baker, Hesham Eissa, Sherif M. Badawy, Hermann Einsele, Alicia Rovó, Isabel Sanchez-Ortega, Maria Teresa Lupo-Stanghellini, Douglas Tremblay, Michael L. Eisenberg, Hildegard T. Greinix, Hemant S. Murthy, Annie Im, Amir Steinberg, Grzegorz W. Basak, Peiman Hematti, Tal Schechter, Andrea Salonia, David Buchbinder, Elizabeth M. Suelzer, Vaibhav Agrawal, Steven Pavletic, Kareem Jamani, John Murray, Seema Naik, Ami J. Shah, Sarah C. Vij, Akshay Sharma, Rebecca Hunter, Zinaida Peric, Narendranath Epperla, Linda J. Burns, Ajoy Dias, Nosha Farhadfar, Pinki Prasad, John A. Snowden, Betty K. Hamilton, D. Pulanić, Phelan, Rachel, Im, Annie, Hunter, Rebecca L, Inamoto, Yoshihiro, Lupo-Stanghellini, Maria Teresa, Rovo, Alicia, Badawy, Sherif M, Burns, Linda, Eissa, Hesham, Murthy, Hemant S, Prasad, Pinki, Sharma, Akshay, Suelzer, Elizabeth, Agrawal, Vaibhav, Aljurf, Mahmoud, Baker, Karen, Basak, Grzegorz W, Buchbinder, David, Defilipp, Zachariah, Grkovic, Lana Desnica, Dias, Ajoy, Einsele, Hermann, Eisenberg, Michael L, Epperla, Narendranath, Farhadfar, Nosha, Flatau, Arthur, Gale, Robert Peter, Greinix, Hildegard, Hamilton, Betty K, Hashmi, Shahrukh, Hematti, Peiman, Jamani, Kareem, Maharaj, Dipnarine, Murray, John, Naik, Seema, Nathan, Sunita, Pavletic, Steven, Peric, Zinaida, Pulanic, Drazen, Ross, Richard, Salonia, Andrea, Sanchez-Ortega, Isabel, Savani, Bipin N, Schechter, Tal, Shah, Ami J, Smith, Stephanie M, Snowden, John A, Steinberg, Amir, Tremblay, Dougla, Vij, Sarah C, Walker, Lauren, Wolff, Daniel, Yared, Jean A, Schoemans, Hélène, and Tichelli, André
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Adult ,Male ,Infertility ,medicine.medical_specialty ,Evidence-based practice ,Sexual Dysfunction ,Survivorship ,Late effects ,Male-specific ,Hematopoietic cell transplantation ,Genital ,Chronic graft-versus-host disease ,Hypogonadism ,Sexual dysfunction ,Subsequent malignancies ,Population ,Graft vs Host Disease ,610 Medicine & health ,Disease ,Article ,Testicular Neoplasms ,Quality of life ,Bone Marrow ,medicine ,Humans ,Immunology and Allergy ,Hematopoietic Cell Transplantation ,Intensive care medicine ,education ,Late Effects ,Reproductive health ,education.field_of_study ,Subsequent Malignancies ,Transplantation ,business.industry ,Male-Specific ,Hematopoietic Stem Cell Transplantation ,Cell Biology ,Hematology ,medicine.disease ,Transplant Recipients ,surgical procedures, operative ,Genital Chronic Graft-versus-Host Disease ,Disease Progression ,Quality of Life ,Molecular Medicine ,Female ,medicine.symptom ,business - Abstract
Background : Male-specific late effects after hematopoietic cell transplantation (HCT) include genital chronic graft-versus-host disease (GvHD), hypogonadism, sexual dysfunction, infertility, and subsequent malignancies, such as prostate, penile, and testicular cancer. They may be closely intertwined and cause prolonged morbidity and decreased quality of life after HCT. Objective : Here, we provide a systematic review of male-specific late effects in a collaboration between transplant physicians, endocrinologists, urologists, dermatologists, and sexual health professionals through the Late Effects and Quality of Life Working Committee of the Center for International Blood and Marrow Transplant Research, and the Transplant Complications Working Party of the European Society of Blood and Marrow Transplantation. Study Design : We utilized systematic review methodology to summarize incidence, risk factors, screening, prevention and treatment of these complications and provide consensus evidence-based recommendations for clinical practice and future research. Results : Most of the evidence regarding male GvHD is still based on limited data, precluding strong therapeutic recommendations. We therefore recommend to systematically screen for male genital GvHD regularly and report it to large registries to allow for a better understanding. Future research should also address treatment since little published evidence is available to date. Male-specific endocrine consequences of HCT include hypogonadism which may also affect bone health. Since the evidence is scarce, current recommendations for hormone substitution and/or bone health treatment are based on similar principles as for the general population. Following HCT, sexual health decreases and this topic should be addressed at regular intervals. Future studies should focus on interventional strategies to address sexual dysfunction. Infertility remains prevalent in patients having undergone myeloablative conditioning, which warrants offering sperm preservation in all HCT candidates. Most studies on fertility rely on descriptive registry analysis and surveys, hence the importance of reporting post-HCT conception data to large registries. Although the quality of evidence is low, the development of cancer in male genital organs does not seem more prevalent than in the general population; however, subsequent malignancies in general seem to be more prevalent in males than females, and special attention should be given to skin and oral mucosa. Conclusion : Male-specific late effects, probably more under-reported than female-specific complications, should be systematically considered during the regular follow-up visits of male survivors who have undergone HCT. Care of patients with male-specific late effects warrants close collaboration between transplant physicians and specialists from other involved disciplines. Future research should be directed towards better data collection on male-specific late effects and on studies about the interrelationship between these late effects, to allow the development of evidence based effective management practices.
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- 2022
25. Topical Antiandrogen Therapies for Androgenetic Alopecia and Acne Vulgaris
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Dustin H. Marks, Brianna De Souza, Maryanne M. Senna, Laura J. Burns, and Sonya Prasad
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medicine.medical_specialty ,medicine.drug_class ,Administration, Topical ,Dermatology ,Antiandrogen ,law.invention ,030207 dermatology & venereal diseases ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Randomized controlled trial ,law ,Acne Vulgaris ,medicine ,Humans ,Adverse effect ,Acne ,business.industry ,Alopecia ,Androgen Antagonists ,General Medicine ,medicine.disease ,Clinical trial ,Hair loss ,chemistry ,Finasteride ,Ketoconazole ,business ,medicine.drug - Abstract
Androgenetic alopecia (AGA) and acne vulgaris are two conditions commonly seen by dermatologists. Androgens and the androgen receptors play an essential role in the manifestation of both conditions, and some systemic therapies function by interfering in this pathway. The use of topical antiandrogen therapies has gained traction in recent years due to their potential efficacy in treating AGA and acne vulgaris, as well as their reduced adverse effects compared with systemic drugs. This review discusses the role of androgens in skin physiology and pathology and assesses the potential efficacy and safety of three topical antiandrogen therapies in the treatment of AGA and acne vulgaris. A literature review utilizing the PubMed, US Clinical Trials, and SCOPUS databases was conducted to search for randomized clinical trials, systematic reviews, cohort studies, case reports, and other relevant published studies on the pathogenesis and treatment of each condition with topical finasteride, ketoconazole shampoo, and cortexolone 17α-propionate (C17P). The results demonstrated that topical formulations of finasteride, ketoconazole, and C17P are promising treatments for male pattern hair loss, especially topical finasteride in combination with topical minoxidil. Limited studies have shown C17P to have potential in treating acne vulgaris in both males and females. Minimal adverse effects have been reported in clinical trials for all topical therapies, although topical finasteride is still contraindicated in pregnancy. Recognizing the preliminary evidence, more peer-reviewed studies on topical antiandrogen treatments for AGA and acne vulgaris are necessary before definitive recommendations can be made regarding efficacy and safety. There is also a critical need to include more women in study populations for these treatments.
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- 2019
26. Urgent Time to Allogeneic Hematopoietic Cell Transplantation: A National Survey of Transplant Physicians and Unrelated Donor Search Coordinators Facilitated by the Histocompatibility Advisory Group to the National Marrow Donor Program
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Jason Dehn, Marcelo Fernandez-Vina, Tatenda G. Mupfudze, Miguel-Angel Perales, Tammy J. Payton, Juliet N. Barker, Bronwen E. Shaw, Linda J. Burns, and Joseph Pidala
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Male ,medicine.medical_specialty ,National Health Programs ,Article ,03 medical and health sciences ,0302 clinical medicine ,Unrelated Donor ,Physicians ,Surveys and Questionnaires ,Humans ,Medicine ,Registries ,Alternative donor ,Transplantation ,Hematopoietic cell ,business.industry ,Donor selection ,Hematopoietic Stem Cell Transplantation ,Hematology ,Matched Unrelated Donor ,Allografts ,United States ,Histocompatibility ,030220 oncology & carcinogenesis ,Family medicine ,Disease risk ,Female ,Unrelated Donors ,business ,030215 immunology - Abstract
PURPOSE: To characterize donor search and selection practices, the National Marrow Donor Program (NMDP) Histocompatibility Advisory Group developed a survey of allogeneic hematopoietic cell transplant (HCT) physicians and search coordinators. Objectives were to describe search practices, understand practices surrounding urgent time to HCT, and characterize strategies used when identifying a matched unrelated donor (MUD) is unlikely. METHODS: Participants included United States physician members of the American Society for Transplantation and Cellular Therapy (ASTCT) and donor search coordinators within the NMDP network. The web-based survey was conducted February to May 2018. RESULTS: A total of 317/858 physicians (37%) and 225/327 coordinators (69%) responded, of which 263 and 194 respectively were eligible and were included in the analysis. Most centers, 142 (95%) were represented; 108 (72%) had at least one physician and 128 (85%) had at least one coordinator respondent. Most (68% physicians, 61% coordinators) indicated donor selection decisions were made by individual physicians. Urgent time to HCT was most commonly (90 and 87%, of physicians and coordinators, respectively) defined as HCT within 4–6 weeks of search nitiation. Higher HCT urgency was associated with a higher disease risk index. For urgent cases with low probability of an 8/8 MUD, 75 and 80% of physicians and coordinators endorsed short (1–2 weeks) unrelated donor search before proceeding to an alternative donor source. NMDP-provided solutions to expedite donor identification were strongly endorsed. CONCLUSIONS: This survey clarified current donor selection practices in the United States and defined urgent time to HCT. These data provide insight to NMDP on potential solutions to support the path to transplant, such as highlighting futile searches and providing alternative donor options at the time of search initiation.
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- 2019
27. Use of Chimeric Antigen Receptor T Cell Therapy in Clinical Practice for Relapsed/Refractory Aggressive B Cell Non-Hodgkin Lymphoma: An Expert Panel Opinion from the American Society for Transplantation and Cellular Therapy
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David B. Miklos, Elise A. Chong, Mohamed A. Kharfan-Dabaja, Paul A. Carpenter, Arnon Nagler, Veronika Bachanova, Aleksandr Lazaryan, Craig Kovitz, Justin M. Serrette, Bipin N. Savani, Sattva S. Neelapu, Stephen J. Schuster, Mehdi Hamadani, Mohamad Mohty, Helen E. Heslop, Tania Jain, Linda J. Burns, Stephen M. Ansell, Catherine M. Bollard, Ankit Kansagra, John F. DiPersio, Miguel-Angel Perales, Hillard M. Lazarus, Steven Z. Pavletic, Merav Bar, Yi Lin, Caron A. Jacobson, Joshua A. Hill, Krishna V. Komanduri, Elad Jacoby, Michael Byrne, Shahrukh K. Hashmi, and Farrukh T. Awan
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Oncology ,medicine.medical_specialty ,Lymphoma, B-Cell ,Cell therapy ,03 medical and health sciences ,0302 clinical medicine ,immune system diseases ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Societies, Medical ,Transplantation ,Receptors, Chimeric Antigen ,business.industry ,Hematology ,medicine.disease ,Adoptive Transfer ,United States ,Chimeric antigen receptor ,Lymphoma ,Kite Pharma ,030220 oncology & carcinogenesis ,B-Cell Non-Hodgkin Lymphoma ,Chimeric Antigen Receptor T-Cell Therapy ,business ,Diffuse large B-cell lymphoma ,030215 immunology - Abstract
Axicabtagene ciloleucel (YESCARTA; Kite Pharma, a Gilead Company, Los Angeles CA) and tisagenlecleucel (KYMRIAH; Novartis Pharmaceuticals Corp., Basel, Switzerland) are two CD19-directed chimeric antigen receptor (CAR) T cell products currently approved by the US Food and Drug Administration; the European Medicines Agency; Health Canada; Ministry of Health, Labor and Welfare (Japan); and Therapeutic Goods Administration (Australia) for treatment of specific subtypes of relapsed/refractory aggressive B cell non-Hodgkin lymphoma (NHL). Although this approval has been transformative in the use of cellular immunotherapy in lymphoma, there are concerns regarding appropriate use of this novel therapy and of short- and long-term toxicities. To address these issues, representatives of the American Society of Transplantation and Cellular Therapy convened to recognize and address key issues surrounding the clinical application of CD19 CAR T cell therapy in B cell lymphomas, in collaboration with worldwide experts. The aim of this article is to provide consensus opinion from experts in the fields of hematopoietic cell transplantation, cellular immunotherapy, and lymphoma regarding key clinical questions pertinent to the use of CD19 CAR T cell products for the treatment of NHL. As the clinical practice using CAR T cells grows worldwide, we anticipate that this guidance will be relevant for hematology/oncology physicians who care for patients with lymphomas.
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- 2019
28. Addressing Knowledge Gaps in Acute Myeloid Leukemia to Improve Referral for Hematopoietic Cell Transplantation Consultation
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Christa Meyer, Elizabeth Murphy, Ellen M. Denzen, Darlene Haven, Lih-Wen Mau, Ellyce Hayes, Jaime M. Preussler, Linda J. Burns, Heather Moore, and Jackie Foster
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Adult ,Health Knowledge, Attitudes, Practice ,medicine.medical_specialty ,Myeloid ,Referral ,Health Personnel ,MEDLINE ,Disease ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Practice Patterns, Physicians' ,Child ,Referral and Consultation ,business.industry ,Hematopoietic Stem Cell Transplantation ,Attendance ,Focus group ,Transplantation ,Leukemia, Myeloid, Acute ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Needs assessment ,Clinical Competence ,business ,Needs Assessment ,030215 immunology - Abstract
Background: Outcomes after hematopoietic cell transplantation (HCT) for acute myeloid leukemia (AML) are better when HCT is performed during first complete remission (CR1). This study aimed to identify and address knowledge gaps that affect the timely referral of patients for HCT consultation. Methods: A mixed-methods educational needs assessment included a national survey and focus groups consisting of hematologists/oncologists. An educational intervention of 3 webinars addressed identified knowledge gaps. Results: A total of 150 hematologists/oncologists were recruited for the survey, of whom 20 participated in focus groups. Physicians in practice 0 to 10 years were 4.2 times more likely to refer for HCT consultation in CR1 than those with >10 years in practice (P=.0027). Physicians seeing ≤10 patients with AML in the past year were 3.7 times more likely to refer for HCT consultation in CR1 than those seeing >10 patients (P=.0028). Knowledge gaps included (1) improper classification of molecular/cytogenetic results for risk stratification, (2) lack of understanding that disease stage impacts outcomes, and (3) use of chronologic age alone for referral decision-making. Combined attendance for the webinars was 1,098 clinicians; >74% of participants indicated that they would apply the knowledge they gained in clinical practice. Trends were observed toward improvement in identifying favorable-risk AML, from 48% to 60% (n=85; P=.12); improvement in identifying 2 poor-risk cytogenetic/molecular abnormalities, with the percentage of respondents indicating chromosome 7 deletion increasing from 51% to 70% (n=53; P=.05) and that of respondents indicating TP53 mutation increasing from 42% to 62% (n=62; P=.03); and improvement in identifying which patients with AML aged >60 years were most likely to benefit from HCT based on cytogenetic/molecular features, with the percentage of correct responses increasing from 66% to 81% (n=62; P=.07). Conclusions: The webinars met the educational needs of learners and improved knowledge gaps. This study provided novel insights into the learning needs of clinicians who care for patients with AML and a roadmap for future educational interventions.
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- 2019
29. Using the Matrix to bridge the epidemiology/risk assessment gap: a case study of 2,4-D
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Carol J. Burns and Judy S. LaKind
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medicine.medical_specialty ,Public health ,Applied psychology ,Foundation (evidence) ,Harmonization ,Toxicology ,Causality ,Risk Assessment ,United States ,Epidemiologic Studies ,Epidemiology ,Agency (sociology) ,medicine ,Humans ,Public Health ,2,4-Dichlorophenoxyacetic Acid ,United States Environmental Protection Agency ,Risk assessment ,Psychology ,Exposure assessment - Abstract
BACKGROUND The Matrix is designed to facilitate discussions between practitioners of risk assessment and epidemiology and, in so doing, to enhance the utility of epidemiology research for public health decision-making. The Matrix is comprised of nine fundamental "asks" of epidemiology studies, focusing on the types of information valuable to the risk assessment process. OBJECTIVE A 2,4-dichlorophenoxyacetic acid (2,4-D) case study highlights the extent to which existing epidemiology literature includes information generally needed for risk assessments and proffers suggestions that would assist in bridging the epidemiology/risk assessment gap. METHODS Thirty-one publications identified in the US Environmental Protection Agency 2,4-D epidemiology review were assessed. These studies focused on associations between 2,4-D exposure and non-Hodgkin lymphoma (NHL), respiratory effects, and birth outcomes. RESULTS Many of the papers met one or more specific elements of the Matrix. However, from this case study, it is clear that some aspects of risk assessment, such as evaluating source-to-intake pathways, are generally not considered in epidemiology research. Others are incorporated, but infrequently (e.g. dose-response information, harmonization of exposure categories). We indicated where additional analyses or modifications to future study design could serve to improve the translation. DISCUSSION Interaction with risk assessors during the study design phase and using the Matrix "asks" to guide the conversations could shape research and provide the basis for requests for funds to support these additional activities. The use of the Matrix as a foundation for communication and education across disciplines could produce more impactful and consequential epidemiology research for robust risk assessments and decision-making.
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- 2021
30. Trajectories of Depressive Symptoms and Incident Diabetes: A Prospective Study
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Norbert Schmitz, Esther Briner, and Rachel J. Burns
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Chronic condition ,Pediatrics ,medicine.medical_specialty ,business.industry ,Depression ,Incidence (epidemiology) ,Incidence ,Health and Retirement Study ,Middle Aged ,medicine.disease ,Psychiatry and Mental health ,Increased risk ,Risk Factors ,Diabetes mellitus ,Diabetes Mellitus ,Medicine ,Humans ,Prospective Studies ,business ,Prospective cohort study ,General Psychology ,Depression (differential diagnoses) ,Depressive symptoms ,Aged - Abstract
Background Elevated depressive symptoms are associated with an increased risk for diabetes. Depression is a heterogeneous and chronic condition in which symptoms may remit, emerge, lessen, or intensify over time. Purpose The purpose of this study was to determine if trajectories of depressive symptoms measured at five time points over 8 years predicted incident diabetes over an 8-year follow-up in middle-aged and older adults. A secondary aim was to determine if trajectories of depressive symptoms predict incident diabetes, above and beyond depressive symptoms measured at a single time point. Methods Data came from the Health and Retirement Study (n = 9,233). Depressive symptoms were measured biennially from 1998 to 2006. Self-reported incident diabetes was measured during an 8-year follow-up. Results Five trajectories of depressive symptoms were identified (no depressive symptoms, low depressive symptoms, low-moderate depressive symptoms, moderate depressive symptoms, elevated and increasing depressive symptoms). Compared to the no depressive symptoms trajectory group (referent), all other trajectory groups were at higher risk of developing diabetes after adjusting for covariates. In most cases, trajectory group membership was associated with incident diabetes after controlling for depressive symptoms at a single time point. Conclusions Patterns of depressive symptoms over time were associated with incident diabetes. Patterns of depressive symptoms may be more predictive of diabetes incidence than depressive symptoms measured at a single time point.
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- 2021
31. The somatic mutation paradigm in congenital malformations
- Author
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Yunia Sribudiani, Rhiana Garritsen, Wilfred F. J. van IJcken, Tim Rugenbrink, Alan J. Burns, Conny J H M Meeuwsen, Katherine C MacKenzie, Donald F. Newgreen, Cornelius E J Sloots, Bianca M. de Graaf, Maria M. Alves, Rene M. H. Wijnen, Erwin Brosens, Ivo de Blaauw, Rajendra K. Chauhan, Alice S. Brooks, Robert M.W. Hofstra, Rutger W W Brouwer, Clinical Genetics, Pediatric Surgery, and Cell biology
- Subjects
Male ,Cell type ,DNA Copy Number Variations ,Hirschsprung disease ,QH301-705.5 ,Somatic cell ,Copy number analysis ,Biology ,medicine.disease_cause ,Article ,Enteric Nervous System ,Catalysis ,Inorganic Chemistry ,symbols.namesake ,Germline mutation ,Missing heritability problem ,medicine ,Humans ,somatic mutation ,Copy-number variation ,Biology (General) ,Physical and Theoretical Chemistry ,Child ,QD1-999 ,Molecular Biology ,Spectroscopy ,motility disorder ,Sanger sequencing ,Genetics ,Mutation ,Organic Chemistry ,Sequence Analysis, DNA ,General Medicine ,Fibroblasts ,Computer Science Applications ,Chemistry ,Reconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10] ,Neural Crest ,Child, Preschool ,missing heritability ,Leukocytes, Mononuclear ,symbols ,Female ,developmental defects ,gastrointestinal disease - Abstract
Contains fulltext : 245512.pdf (Publisher’s version ) (Open Access) Patients with Hirschsprung disease (HSCR) do not always receive a genetic diagnosis after routine screening in clinical practice. One of the reasons for this could be that the causal mutation is not present in the cell types that are usually tested-whole blood, dermal fibroblasts or saliva-but is only in the affected tissue. Such mutations are called somatic, and can occur in a given cell at any stage of development after conception. They will then be present in all subsequent daughter cells. Here, we investigated the presence of somatic mutations in HSCR patients. For this, whole-exome sequencing and copy number analysis were performed in DNA isolated from purified enteric neural crest cells (ENCCs) and blood or fibroblasts of the same patient. Variants identified were subsequently validated by Sanger sequencing. Several somatic variants were identified in all patients, but causative mutations for HSCR were not specifically identified in the ENCCs of these patients. Larger copy number variants were also not found to be specific to ENCCs. Therefore, we believe that somatic mutations are unlikely to be identified, if causative for HSCR. Here, we postulate various modes of development following the occurrence of a somatic mutation, to describe the challenges in detecting such mutations, and hypothesize how somatic mutations may contribute to 'missing heritability' in developmental defects.
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- 2021
32. Does ozone inhalation cause adverse metabolic effects in humans? A systematic review
- Author
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Judy S. LaKind, Carol J. Burns, Daniel Q. Naiman, Lynn H. Pottenger, Satori A. Marchitti, and Julie E. Goodman
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medicine.medical_specialty ,business.industry ,Type 2 diabetes ,Overweight ,Toxicology ,medicine.disease ,Causality ,Obesity ,Impaired glucose tolerance ,Ozone ,Diabetes Mellitus, Type 2 ,Causal inference ,Diabetes mellitus ,medicine ,Humans ,Metabolic syndrome ,medicine.symptom ,Intensive care medicine ,business - Abstract
We utilized a practical, transparent approach for systematically reviewing a chemical-specific evidence base. This approach was used for a case study of ozone inhalation exposure and adverse metabolic effects (overweight/obesity, Type 1 diabetes [T1D], Type 2 diabetes [T2D], and metabolic syndrome). We followed the basic principles of systematic review. Studies were defined as "Suitable" or "Supplemental." The evidence for Suitable studies was characterized as strong or weak. An overall causality judgment for each outcome was then determined as either causal, suggestive, insufficient, or not likely. Fifteen epidemiologic and 33 toxicologic studies were Suitable for evidence synthesis. The strength of the human evidence was weak for all outcomes. The toxicologic evidence was weak for all outcomes except two: body weight, and impaired glucose tolerance/homeostasis and fasting/baseline hyperglycemia. The combined epidemiologic and toxicologic evidence was categorized as weak for overweight/obesity, T1D, and metabolic syndrome,. The association between ozone exposure and T2D was determined to be insufficient or suggestive. The streamlined approach described in this paper is transparent and focuses on key elements. As systematic review guidelines are becoming increasingly complex, it is worth exploring the extent to which related health outcomes should be combined or kept distinct, and the merits of focusing on critical elements to select studies suitable for causal inference. We recommend that systematic review results be used to target discussions around specific research needs for advancing causal determinations.
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- 2021
33. HSP90 inhibition suppresses lipopolysaccharide-induced lung inflammation in vivo.
- Author
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Andrew Lilja, Clare E Weeden, Kate McArthur, Thao Nguyen, Alastair Donald, Zi Xin Wong, Lovisa Dousha, Steve Bozinovski, Ross Vlahos, Christopher J Burns, Marie-Liesse Asselin-Labat, and Gary P Anderson
- Subjects
Medicine ,Science - Abstract
Inflammation is an important component of cancer diathesis and treatment-refractory inflammation is a feature of many chronic degenerative lung diseases. HSP90 is a 90kDa protein which functions as an ATP-dependent molecular chaperone that regulates the signalling conformation and expression of multiple protein client proteins especially oncogenic mediators. HSP90 inhibitors are in clinical development as cancer therapies but the myeleosuppressive and neutropenic effect of first generation geldanamycin-class inhibitors has confounded studies on the effects on HSP90 inhibitors on inflammation. To address this we assessed the ability of Ganetespib, a non-geldanamycin HSP90 blocker, to suppress lipopolysaccharide (LPS)-induced cellular infiltrates, proteases and inflammatory mediator and transcriptional profiles. Ganetespib (10-100 mg/kg, i.v.) did not directly cause myelosuppression, as assessed by video micrography and basal blood cell count, but it strongly and dose-dependently suppressed LPS-induced neutrophil mobilization into blood and neutrophil- and mononuclear cell-rich steroid-refractory lung inflammation. Ganetespib also suppressed B cell and NK cell accumulation, inflammatory cytokine and chemokine induction and MMP9 levels. These data identify non-myelosuppresssive HSP90 inhibitors as potential therapies for inflammatory diseases refractory to conventional therapy, in particular those of the lung.
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- 2015
- Full Text
- View/download PDF
34. Undiagnosed cicatricial alopecia among new patients undergoing platelet-rich plasma
- Author
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Chloe J. Walker, Maryanne M. Senna, James T. Pathoulas, Laura J. Burns, Isabel Pupo Wiss, Kelly E. Flanagan, and Ehsan Azimi
- Subjects
medicine.medical_specialty ,Text mining ,Letter ,business.industry ,Platelet-rich plasma ,Internal medicine ,RL1-803 ,medicine ,Dermatology ,business ,Gastroenterology - Published
- 2021
35. Microbiological Characterization of VNRX-5236, a Broad-Spectrum β-Lactamase Inhibitor for Rescue of the Orally Bioavailable Cephalosporin Ceftibuten as a Carbapenem-Sparing Agent against Strains of Enterobacterales Expressing Extended-Spectrum β-Lactamases and Serine Carbapenemases
- Author
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Denis M. Daigle, Christopher J. Burns, William J. Weiss, Daniel C. Pevear, Cullen L. Myers, Kaitlyn John, Jodie Hamrick, Robert E. Lee Trout, Susan M Cusick, Mark Pulse, Luigi Xerri, Cassandra L Chatwin, Tsuyoshi Uehara, and Gregory Moeck
- Subjects
Carbapenem ,medicine.drug_class ,Klebsiella pneumoniae ,Tebipenem ,Cephalosporin ,medicine.disease_cause ,Microbiology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,In vivo ,polycyclic compounds ,medicine ,Pharmacology (medical) ,Ceftibuten ,030212 general & internal medicine ,Escherichia coli ,Pharmacology ,0303 health sciences ,biology ,030306 microbiology ,biochemical phenomena, metabolism, and nutrition ,Prodrug ,bacterial infections and mycoses ,biology.organism_classification ,Infectious Diseases ,chemistry ,medicine.drug - Abstract
There is an urgent need for oral agents to combat resistant Gram-negative pathogens. Here, we describe the characterization of VNRX-5236, a broad-spectrum boronic acid β-lactamase inhibitor (BLI), and its orally bioavailable etzadroxil prodrug, VNRX-7145. VNRX-7145 is being developed in combination with ceftibuten, an oral cephalosporin, to combat strains of Enterobacterales expressing extended-spectrum β-lactamases (ESBLs) and serine carbapenemases. VNRX-5236 is a reversible covalent inhibitor of serine β-lactamases, with inactivation efficiencies on the order of 104 M-1 · sec-1, and prolonged active site residence times (t1/2, 5 to 46 min). The spectrum of inhibition includes Ambler class A ESBLs, class C cephalosporinases, and class A and D carbapenemases (KPC and OXA-48, respectively). Rescue of ceftibuten by VNRX-5236 (fixed at 4 μg/ml) in isogenic strains of Escherichia coli expressing class A, C, or D β-lactamases demonstrated an expanded spectrum of activity relative to oral comparators, including investigational penems, sulopenem, and tebipenem. VNRX-5236 rescued ceftibuten activity in clinical isolates of Enterobacterales expressing ESBLs (MIC90, 0.25 μg/ml), KPCs (MIC90, 1 μg/ml), class C cephalosporinases (MIC90, 1 μg/ml), and OXA-48-type carbapenemases (MIC90, 1 μg/ml). Frequency of resistance studies demonstrated a low propensity for recovery of resistant variants at 4× the MIC of the ceftibuten/VNRX-5236 combination. In vivo, whereas ceftibuten alone was ineffective (50% effective dose [ED50], >128 mg/kg), ceftibuten/VNRX-7145 administered orally protected mice from lethal septicemia caused by Klebsiella pneumoniae producing KPC carbapenemase (ED50, 12.9 mg/kg). The data demonstrate potent, broad-spectrum rescue of ceftibuten activity by VNRX-5236 in clinical isolates of cephalosporin-resistant and carbapenem-resistant Enterobacterales.
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- 2021
36. Functional signaling test identifies HER2 negative breast cancer patients who may benefit from c-Met and pan-HER combination therapy
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Ian A. MacNeil, Salmaan A. Khan, Adrish Sen, Sajjad M. Soltani, David J. Burns, Brian F. Sullivan, and Lance G. Laing
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QH573-671 ,Receptor, ErbB-2 ,Research ,HER ,Breast Neoplasms ,Cell Biology ,Dysfunctional signaling ,Biochemistry ,Mice ,Combination targeted therapy ,Cell Line, Tumor ,Tumor Microenvironment ,Medicine ,Animals ,Humans ,Female ,Cytology ,Molecular Biology ,Signal Transduction ,c-Met - Abstract
Background Research is revealing the complex coordination between cell signaling systems as they adapt to genetic and epigenetic changes. Tools to uncover these highly complex functional linkages will play an important role in advancing more efficacious disease treatments. Current tumor cell signal transduction research is identifying coordination between receptor types, receptor families, and transduction pathways to maintain tumor cell viability despite challenging tumor microenvironment conditions. Methods In this report, coactivated abnormal levels of signaling activity for c-Met and HER family receptors in live tumor cells were measured by a new clinical test to identify a subpopulation of breast cancer patients that could be responsive to combined targeted therapies. The CELsignia Multi-Pathway Signaling Function (CELsignia) Test uses an impedance biosensor to quantify an individual patient’s ex vivo live tumor cell signaling response in real-time to specific HER family and c-Met co-stimulation and targeted therapies. Results The test identified breast tumors with hyperactive HER1, HER2, HER3/4, and c-Met coordinated signaling that express otherwise normal amounts of these receptors. The supporting data of the pre-clinical verification of this test included analyses of 79 breast cancer patients’ cell response to HER and c-Met agonists. The signaling results were confirmed using clinically approved matching targeted drugs, and combinations of targeted drugs in addition to correlative mouse xenograft tumor response to HER and c-Met targeted therapies. Conclusions The results of this study demonstrated the potential benefit of a functional test for identifying a subpopulation of breast cancer patients with coordinated abnormal HER and c-Met signaling for a clinical trial testing combination targeted therapy.
- Published
- 2021
37. P364 Access to HIV-prevention in female sex workers in Ukraine between 2009 and 2017: coverage, barriers and facilitators
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J Burns, N Blumer, and L Pfadenhauer
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medicine.medical_specialty ,business.industry ,Family medicine ,Human immunodeficiency virus (HIV) ,Medicine ,Female sex ,business ,medicine.disease_cause - Published
- 2021
38. Blood and Marrow Transplant Clinical Trials Network Study 1102 heralds a new era in hematopoietic cell transplantation in high-risk myelodysplastic syndromes: Challenges and opportunities in implementation
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Linda J. Burns, Astrid Andreescu, David P. Steensma, Erica D. Warlick, Anthony F. Bonagura, Daniel F. Pease, Mark B. Juckett, Virginia M. Klimek, Nandita Khera, Celalettin Ustun, Tamila L. Kindwall-Keller, Mary M. Horowitz, Andrew M. Brunner, Bryce M. Waldman, Abhinav B. Chandra, and James M. Foran
- Subjects
Cancer Research ,medicine.medical_specialty ,Transplantation Conditioning ,business.industry ,Myelodysplastic syndromes ,Ethnic group ,Hematopoietic Stem Cell Transplantation ,medicine.disease ,Patient advocacy ,Article ,Clinical trial ,Transplantation ,surgical procedures, operative ,Oncology ,Bone transplantation ,Bone Marrow ,hemic and lymphatic diseases ,Expanded access ,Myelodysplastic Syndromes ,Health care ,medicine ,Humans ,Transplantation, Homologous ,Intensive care medicine ,business - Abstract
LAY SUMMARY People who have advanced myelodysplastic syndromes (MDS) may live longer if they get a bone marrow transplant (BMT) instead of other therapies. However, only 15% of people with MDS actually get BMT. Experts say community physicians and transplant physicians should team up with insurance companies and patient advocacy groups to 1) spread this news about lifesaving advances in BMT, 2) ensure that everyone can afford health care, 3) provide emotional support for patients and families, 4) help patients and families get transportation and housing if they need to travel for transplant, and 5) improve care for people of under-represented racial and ethnic backgrounds.
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- 2021
39. Spironolactone for treatment of female pattern hair loss
- Author
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Dina Hagigeorges, Maryanne M. Senna, Elizabeth Flynn, Brianna De Souza, and Laura J. Burns
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Adult ,Drug ,medicine.medical_specialty ,media_common.quotation_subject ,Treatment outcome ,MEDLINE ,Dermatology ,Spironolactone ,Severity of Illness Index ,Drug Administration Schedule ,Young Adult ,chemistry.chemical_compound ,Internal medicine ,Severity of illness ,Humans ,Medicine ,Young adult ,Aged ,media_common ,Dose-Response Relationship, Drug ,business.industry ,Alopecia ,Middle Aged ,medicine.disease ,Dose–response relationship ,Treatment Outcome ,Hair loss ,chemistry ,Female ,business - Published
- 2020
40. Primary cicatricial alopecia associated with systemic indolent mastocytosis
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Laura J. Burns, Maryanne M. Senna, Sonya Prasad, and Brianna De Souza
- Subjects
medicine.medical_specialty ,Case Report ,telangiectasia macularis eruptiva perstans ,Dermatology ,systemic mastocytosis ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,lcsh:Dermatology ,medicine ,Systemic mastocytosis ,mastocytosis ,cicatricial alopecia ,integumentary system ,business.industry ,lcsh:RL1-803 ,alopecia ,medicine.disease ,Telangiectasia macularis eruptiva perstans ,PCA, primary cicatricial alopecia ,Hair loss ,SM, systemic mastocytosis ,primary cicatricial alopecia ,030220 oncology & carcinogenesis ,TMEP, telangiectasia macularis eruptiva perstans ,business - Abstract
We present a case of a 63-year-old woman diagnosed with indolent cutaneous and systemic mastocytosis (SM) who presented with hair loss due to primary cicatricial alopecia (PCA).
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- 2020
41. Discovery of Taniborbactam (VNRX-5133): A Broad-Spectrum Serine- and Metallo-β-lactamase Inhibitor for Carbapenem-Resistant Bacterial Infections
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Bin Liu, M. Benvenuti, Christopher J. Burns, G.-H. Chu, Mcgarry Daniel G, Luigi Xerri, Denis M. Daigle, Robert E. Lee Trout, Cecilia Pozzi, Daniel C. Pevear, Stefano Mangani, William J. Weiss, Randy W. Jackson, F. De Luca, Jean Denis Docquier, Susan M Cusick, and Jodie Hamrick
- Subjects
medicine.drug_class ,Antibiotics ,Cephalosporin ,Carboxylic Acids ,Drug Annotation ,medicine.disease_cause ,01 natural sciences ,beta-Lactam Resistance ,Microbiology ,Mice ,03 medical and health sciences ,Models ,In vivo ,Drug Discovery ,polycyclic compounds ,medicine ,Animals ,Humans ,Beta-Lactamase Inhibitors ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,Bacteria ,biology ,Pseudomonas aeruginosa ,Chemistry ,Molecular ,Bacterial Infections ,biology.organism_classification ,Anti-Bacterial Agents ,Borinic Acids ,Carbapenems ,Models, Molecular ,beta-Lactamase Inhibitors ,Enterobacteriaceae ,3. Good health ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,Enzyme ,Molecular Medicine - Abstract
A major resistance mechanism in Gram-negative bacteria is the production of β-lactamase enzymes. Originally recognized for their ability to hydrolyze penicillins, emergent β-lactamases can now confer resistance to other β-lactam drugs, including both cephalosporins and carbapenems. The emergence and global spread of β-lactamase-producing multi-drug-resistant “superbugs” has caused increased alarm within the medical community due to the high mortality rate associated with these difficult-to-treat bacterial infections. To address this unmet medical need, we initiated an iterative program combining medicinal chemistry, structural biology, biochemical testing, and microbiological profiling to identify broad-spectrum inhibitors of both serine- and metallo-β-lactamase enzymes. Lead optimization, beginning with narrower-spectrum, weakly active compounds, provided 20 (VNRX-5133, taniborbactam), a boronic-acid-containing pan-spectrum β-lactamase inhibitor. In vitro and in vivo studies demonstrated that 20 restored the activity of β-lactam antibiotics against carbapenem-resistant Pseudomonas aeruginosa and carbapenem-resistant Enterobacteriaceae. Taniborbactam is the first pan-spectrum β-lactamase inhibitor to enter clinical development.
- Published
- 2019
42. Engaging hematopoietic cell transplantation patients and caregivers in the design of print and mobile application individualized survivorship care plan tools
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Jean Yi, Jaime M. Preussler, Ellen M. Denzen, Meggan McCann, Linda J. Burns, Karen L. Syrjala, K. Scott Baker, and Navneet S. Majhail
- Subjects
Adult ,Male ,medicine.medical_specialty ,Transplantation Conditioning ,Adolescent ,Survivorship ,Patient Care Planning ,Article ,law.invention ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Survivorship curve ,medicine ,Humans ,030212 general & internal medicine ,Child ,Aged ,business.industry ,Nursing research ,Hematopoietic Stem Cell Transplantation ,Focus Groups ,Middle Aged ,Mobile Applications ,Focus group ,Transplantation ,Caregivers ,Oncology ,030220 oncology & carcinogenesis ,Family medicine ,Action plan ,Female ,The Internet ,Tracking (education) ,business - Abstract
PURPOSE: INSPIRE (INteractive Survivorship Program with Information and REsources) is an online health program that includes a mobile app, website, health action plan, and individualized survivorship care plans for adult hematopoietic cell transplant (HCT) survivors. The INSPIRE program integrates two previously effective randomized control trials that tested an internet-based program and patient-centered survivorship care plans for HCT survivors. METHODS: Three focus groups were conducted with a total of 22 participants (20 patients, 2 caregivers/patient advocates) to explore patient and caregiver preferences and to optimize the patient-centered emphasis of INSPIRE. Adult (age > 18 years at the time of study entry) HCT recipients had to be at least 1-year post-HCT to participate; caregivers/patient advocates were also eligible. Participants had to be able to communicate in English, could have any diagnosis, transplant type, or donor source, and could have had multiple transplants. RESULTS: All patient participants received an allogeneic HCT; average time since HCT was 8 years (range 2–22 years). The majority of participants were female (77.3%). Overall, the tools were well received by participants in this study, particularly the personalized features of all the tools. Major themes included interest in having the ability to tailor features to individual needs, and an interest in tracking information over time. DISCUSSION: Engaging patients and caregivers is invaluable to optimize tools designed to improve HCT survivorship care. Print, online, and mobile-based tools, tailored to individual patients’ treatment history and requisite follow-up care, can provide otherwise unavailable expertise and guidelines for care.
- Published
- 2019
43. Inferior Access to Allogeneic Transplant in Disadvantaged Populations: A Center for International Blood and Marrow Transplant Research Analysis
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Hillard M. Lazarus, Nandita Khera, Wael Saber, Ruta Brazauskas, Baldeep Wirk, Charles F. LeMaistre, Navneet S. Majhail, Kristjan Paulson, David Szwajcer, Gorgun Akpek, Anne Garcia, Matthew D. Seftel, William A. Wood, Linda J. Burns, Jennifer M. Knight, David Buchbinder, James Gajewski, Naya He, Mahmoud Aljurf, Cesar O. Freytes, Theresa Hahn, and Sara Beattie
- Subjects
Transplantation ,education.field_of_study ,medicine.medical_specialty ,Allogeneic transplantation ,business.industry ,Incidence (epidemiology) ,Population ,Hematology ,Rate ratio ,medicine.disease ,03 medical and health sciences ,Leukemia ,0302 clinical medicine ,hemic and lymphatic diseases ,030220 oncology & carcinogenesis ,Cohort ,Epidemiology ,Medicine ,business ,education ,030215 immunology ,Demography - Abstract
Allogeneic hematopoietic cell transplantation (alloHCT) is offered in a limited number of medical centers and is associated with significant direct and indirect costs. The degree to which social and geographic barriers reduce access to alloHCT is unknown. Data from the Surveillance, Epidemiology and End Results Program (SEER) and the Center for International Blood and Marrow Transplant Research (CIBMTR) were integrated to determine the rate of unrelated donor (URD) alloHCT for acute myelogenous leukemia (AML), acute lymphoblastic leukemia (ALL), and myelodysplastic syndrome (MDS) performed between 2000 and 2010 in the 612 counties covered by SEER. The total incidence of AML, ALL, and MDS was determined using SEER, and the number of alloHCTs performed in the same time period and geographic area were determined using the CIBMTR database. We then determined which sociodemographic attributes influenced the rate of alloHCT (rural/urban status, median family size, percentage of residents below the poverty line, and percentage of minority race). In the entire cohort, higher levels of poverty were associated with lower rates of alloHCT (estimated rate ratio [ERR], .86 for a 10% increase in the percentage of the population below the poverty line; P
- Published
- 2019
44. Selection of unrelated donors and cord blood units for hematopoietic cell transplantation: guidelines from the NMDP/CIBMTR
- Author
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Carlheinz Mueller, Miguel-Angel Perales, Marcelo Fernandez-Vina, Mary Eapen, Stephen R. Spellman, Carolyn Katovich Hurley, Raja Rajalingam, Dennis L. Confer, Joseph Pidala, Bronwen E. Shaw, Susana R. Marino, Linda J. Burns, Jason Dehn, Robert J. Hartzman, Martin Maiers, and Juliet N. Barker
- Subjects
Adult ,Oncology ,medicine.medical_specialty ,medicine.medical_treatment ,Immunology ,Graft vs Host Disease ,Human leukocyte antigen ,Hematopoietic stem cell transplantation ,Biochemistry ,Donor Selection ,Internal medicine ,medicine ,Humans ,Registries ,Special Report ,Selection (genetic algorithm) ,Hematopoietic cell ,business.industry ,Histocompatibility Testing ,Hematopoietic Stem Cell Transplantation ,Infant, Newborn ,Cell Biology ,Hematology ,Fetal Blood ,Histocompatibility ,Transplantation ,surgical procedures, operative ,Bone transplantation ,Cord blood ,Cord Blood Stem Cell Transplantation ,Unrelated Donors ,business - Abstract
Allogeneic hematopoietic cell transplantation involves consideration of both donor and recipient characteristics to guide the selection of a suitable graft. Sufficient high-resolution donor–recipient HLA match is of primary importance in transplantation with adult unrelated donors, using conventional graft-versus-host disease prophylaxis. In cord blood transplantation, optimal unit selection requires consideration of unit quality, cell dose and HLA-match. In this summary, the National Marrow Donor Program (NMDP) and the Center for International Blood and Marrow Transplant Research, jointly with the NMDP Histocompatibility Advisory Group, provide evidence-based guidelines for optimal selection of unrelated donors and cord blood units.
- Published
- 2019
45. Role of Physical Therapy before and after Hematopoietic Stem Cell Transplantation: White Paper Report
- Author
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Shahrukh K. Hashmi, Arun Alfred, Sean R. Smith, Linda J. Burns, Nina Salooja, Amah Chris Chim, Grzegorz W. Basak, Naeem Chaudhri, Zinaida Peric, M Aljurf, Bipin N. Savani, Jaleel Mohammed, Hadeel R Bakhsh, Nnenna Chigbo, and Hélène Schoemans
- Subjects
Research Report ,medicine.medical_specialty ,Transplantation Conditioning ,medicine.medical_treatment ,Hematopoietic stem cell transplantation ,White paper ,Quality of life ,Survivorship curve ,Health care ,medicine ,Humans ,Exercise ,Physical Therapy Modalities ,Allogeneic ,Transplantation ,Rehabilitation ,business.industry ,Marrow transplantation ,Hematopoietic Stem Cell Transplantation ,Hematology ,medicine.disease ,surgical procedures, operative ,Graft-versus-host disease ,HSCT ,Physical therapy ,business - Abstract
Hematopoietic stem cell transplantation (HSCT) patients can suffer from various musculoskeletal problems resulting in long-term functional incapacity. Physical therapy (PT), as a part of the healthcare team, has been historically advocated for regaining functional capacity and improving quality of life post-HSCT. Because of the nature of this condition and the burden of post-transplant complications, this patient group requires a unique approach toward their rehabilitation that takes into account their complex musculoskeletal presentation ranging from fascia, muscle, tendons, bones, and ligaments. However, to our knowledge there is no universal standardized PT protocol or pathway to help guide rehab specialists to achieve optimal gains for this patient group, and anecdotal evidence suggests that these patients do not always receive the PT care they require. Hence, in collaboration with the Transplant Complications Working Party of the European Society for Blood and Marrow Transplantation, the Survivorship Special Interest Group of the American Society of Blood and Marrow Transplantation, and the Quality of Life Committee of the Eastern Mediterranean Blood and Marrow Transplantation, herein the Physical Therapy Association for Graft Versus Host Disease provides a brief review on role of PT in mitigating musculoskeletal complications in HSCT patients and makes evidence-based recommendations for incorporation of PT into routine HSCT care. ispartof: Biol Blood Marrow Transplant vol:25 issue:6 pages:e191-e198 ispartof: location:United States status: published
- Published
- 2019
46. Dyadic associations between physical activity and body mass index in couples in which one partner has diabetes: results from the Lifelines cohort study
- Author
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Rachel J. Burns, Jennifer Fillo, Sonya S. Deschênes, and Norbert Schmitz
- Subjects
Adult ,Male ,Gerontology ,Physical activity ,Type 2 diabetes ,Health outcomes ,Article ,Body Mass Index ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Diabetes mellitus ,medicine ,Humans ,Interpersonal Relations ,Behavior management ,030212 general & internal medicine ,Exercise ,General Psychology ,030505 public health ,nutritional and metabolic diseases ,medicine.disease ,Psychiatry and Mental health ,Health psychology ,Cross-Sectional Studies ,Sexual Partners ,Diabetes Mellitus, Type 2 ,Female ,0305 other medical science ,Psychology ,Body mass index ,Cohort study - Abstract
Physical activity and body mass index (BMI) are linked to the prevention and management of type 2 diabetes (T2D). Romantic partners influence each other’s health and the behavioral management of T2D often involves both partners. Therefore, this study examined dyadic associations between physical activity and BMI in couples in which one partner has T2D. Data came from the Lifelines cohort study. The actor-partner interdependence model was applied to cross-sectional data from 1,133 couples in which only one partner had T2D. The physical activity of the person with diabetes was inversely associated with his/her partner’s BMI. However, partner physical activity was not associated with the BMI of the person with diabetes. These results suggest that people with diabetes may influence the BMI of their partners. Future research should consider how people with diabetes influence the health outcomes of their partners, which is an area that is often overlooked in the literature.
- Published
- 2019
47. Non-Graft-versus-Host Disease Ocular Complications after Hematopoietic Cell Transplantation: Expert Review from the Late Effects and Quality of Life Working Committee of the Center for International Blood and Marrow Transplant Research and the Transplant Complications Working Party of the European Society for Blood and Marrow Transplantation
- Author
-
Mary E.D. Flowers, Alicia Rovó, Gerhard C. Hildebrandt, Kristina Teär Fahnehjelm, Robert Peter Gale, Catherine J. Lee, Mahmoud Aljurf, Pinki Prasad, Baldeep Wirk, Yoshihiro Inamoto, Ami J. Shah, Jason Law, Minoo Battiwalla, Amir Steinberg, Bronwen E. Shaw, Igor Petriček, Linda J. Burns, Natalie S. Callander, Grzegorz W. Basak, Seth J. Rotz, Rafael F. Duarte, Hassan B. Alkhateeb, Jean A. Yared, Ibrahim Ahmed, Ravi Pingali, Amer Beitinjaneh, André Tichelli, Raquel M. Schears, Olaf Penack, Erich Horn, Rammurti T. Kamble, Aisha Ahmed, Ann A. Jakubowski, Saurabh Chhabra, Nosha Farhadfar, Nuria Valdés-Sanz, Bipin N. Savani, Siddhartha Ganguly, Neel S. Bhatt, Aditya Shreenivas, Dave Buchbinder, Peiman Hematti, Asim Ali, Vaibhav Agrawal, Drazen Pulanic, Zachariah DeFilipp, Khalid Tabbara, Shahrukh K. Hashmi, Sunita Nathan, and Michael Byrne
- Subjects
Transplantation ,medicine.medical_specialty ,business.industry ,Inflammation ,Hematology ,Disease ,medicine.disease ,Pathophysiology ,3. Good health ,03 medical and health sciences ,surgical procedures, operative ,0302 clinical medicine ,Graft-versus-host disease ,Quality of life ,Bone transplantation ,immune system diseases ,030220 oncology & carcinogenesis ,030221 ophthalmology & optometry ,Medicine ,medicine.symptom ,business ,Complication ,Intensive care medicine - Abstract
Ocular graft-versus-host disease (GVHD) occurs in more than one-half of patients who develop chronic GVHD after allogeneic hematopoietic cell transplantation (HCT), causing prolonged morbidity that affects activities of daily living and quality of life. Here we provide an expert review of ocular GVHD in a collaboration between transplantation physicians and ophthalmologists through the Late Effects and Quality of Life Working Committee of the Center for International Blood and Marrow Transplant Research and the Transplant Complications Working Party of the European Society of Blood and Marrow Transplantation. Recent updates in ocular GVHD regarding pathophysiology, preclinical models, risk factors, prevention, screening, diagnosis, response criteria, evaluation measures, and treatment are discussed. Ocular GVHD involves at least 3 biological processes: lacrimal gland dysfunction, meibomian gland dysfunction, and corneoconjunctival inflammation. Preclinical models have identified several novel pathogenic mechanisms, including the renin angiotensin system and endoplasmic reticulum stress signaling, which can be targeted by therapeutic agents. Numerous studies have identified reliable tests for establishing diagnosis and response assessment of ocular GVHD. The efficacy of systemic and topical treatment for ocular GVHD is summarized. It is important that all health professionals caring for HCT recipients have adequate knowledge of ocular GVHD to provide optimal care.
- Published
- 2019
48. Copy-number variants in clinical genome sequencing: deployment and interpretation for rare and undiagnosed disease
- Author
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Alison J. Coffey, Alka Malhotra, Bryan R. Lajoie, Egor Dolzhenko, Denise L. Perry, Alicia Scocchia, R. Tanner Hagelstrom, Amirah Khouzam, Ryan J. Taft, Vani Rajan, Tina Hambuch, Stephen Tanner, Natasa Dzidic, Shimul Chowdhury, Andrew M. Gross, Trilochan Sahoo, Eric Roller, Subramanian S. Ajay, Erin Thorpe, Nicole J. Burns, Karine Hovanes, Sergii Ivakhno, David R. Bentley, Julia McEachern, Michael A. Eberle, Carolyn Brown, John W Belmont, Aditi Chawla, and Krista Bluske
- Subjects
Male ,0301 basic medicine ,Adolescent ,DNA Copy Number Variations ,Microarray ,whole genome sequencing (WGS) ,Computational biology ,Disease ,030105 genetics & heredity ,Biology ,Undiagnosed Diseases ,Article ,DNA sequencing ,Cohort Studies ,Young Adult ,03 medical and health sciences ,Rare Diseases ,medicine ,Humans ,Genetic Testing ,Copy-number variation ,Child ,Genetics (clinical) ,Whole Genome Sequencing ,Genome, Human ,Breakpoint ,Chromosome Mapping ,Infant ,Genomics ,medicine.disease ,Uniparental disomy ,rare and undiagnosed disease ,copy number variation (CNV) ,030104 developmental biology ,Child, Preschool ,structural variation (SV) ,Female ,DNA microarray ,Trisomy ,microarray - Abstract
Purpose Current diagnostic testing for genetic disorders involves serial use of specialized assays spanning multiple technologies. In principle, genome sequencing (GS) can detect all genomic pathogenic variant types on a single platform. Here we evaluate copy-number variant (CNV) calling as part of a clinically accredited GS test. Methods We performed analytical validation of CNV calling on 17 reference samples, compared the sensitivity of GS-based variants with those from a clinical microarray, and set a bound on precision using orthogonal technologies. We developed a protocol for family-based analysis of GS-based CNV calls, and deployed this across a clinical cohort of 79 rare and undiagnosed cases. Results We found that CNV calls from GS are at least as sensitive as those from microarrays, while only creating a modest increase in the number of variants interpreted (~10 CNVs per case). We identified clinically significant CNVs in 15% of the first 79 cases analyzed, all of which were confirmed by an orthogonal approach. The pipeline also enabled discovery of a uniparental disomy (UPD) and a 50% mosaic trisomy 14. Directed analysis of select CNVs enabled breakpoint level resolution of genomic rearrangements and phasing of de novo CNVs. Conclusion Robust identification of CNVs by GS is possible within a clinical testing environment.
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- 2019
49. Information Needs for Treatment Decision-making of Hematopoietic Cell Transplant Patients 65 Years or Older and Caregivers
- Author
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Linda J. Burns, Hannah MacDougall, Stacy Stickney Ferguson, Jackie Foster, Elizabeth Murphy, Lih-Wen Mau, Ellen M. Denzen, Celalettin Ustun, Heather Moore, Shirley Johnson, Jaime M. Preussler, Brett Glotzbecker, and Jenna Hullerman Umar
- Subjects
medicine.medical_specialty ,Hematopoietic cell ,business.industry ,Public Health, Environmental and Occupational Health ,Information needs ,Peer support ,Focus group ,Transplantation ,03 medical and health sciences ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Family medicine ,Needs assessment ,Medicine ,030212 general & internal medicine ,Treatment decision making ,business ,Patient education - Abstract
Hematopoietic cell transplantation (HCT) is a complex and potentially life-threatening treatment option for patients with hematologic malignant and non-malignant diseases. Advances have made HCT a potentially curative treatment option for patients 65 years of age and older (older patients), and patient education resources should be adapted to meet their needs. To better understand the information needs of older patients and their caregivers for HCT treatment decision-making, the National Marrow Donor Program® (NMDP)/Be The Match® conducted a qualitative comprehensive needs assessment. Focus groups, offered in person or by phone, were conducted with older HCT patients and primary caregivers of older HCT patients at three transplant centers in the USA that were selected based on the number of older adults treated and geographic diversity. The one-hour, semi-structured discussions were recorded and transcribed verbatim. The analysis was performed with the NVivo 10 software for identification of conceptual themes. Five telephone and six in person focus groups of patients (n = 35) and caregivers (n = 10) were conducted. Themes that emerged included the following: (1) the need for tailored resources with age-specific recovery expectations; (2) the need for the right amount of information at the right times; and (3) the benefit of peer support. Effective patient education supports learning and treatment decision-making. As HCT increasingly becomes a treatment option for older patients, tailored educational resources are needed. These focus group results can inform and guide the development of new educational resources for older adults with hematologic diseases considering and planning for HCT.
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- 2019
50. Randomized controlled trial of individualized treatment summary and survivorship care plans for hematopoietic cell transplantation survivors
- Author
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Ellen M. Denzen, Jaime M. Preussler, Elizabeth Murphy, Balkrishna N. Jahagirdar, Joseph P. McGuirk, Linda J. Burns, Alexia Adams, Lizette Salazar, Jana Reynolds, Theresa Hahn, Naynesh Kamani, K. Scott Baker, RaeAnne M. Besser, Deborah Mattila, Karen L. Syrjala, Purushottam W. Laud, Alison W. Loren, Patrick J. Stiff, Barry A. Schatz, Jan Cerny, Wael Saber, Beatrice Abetti, John R. Wingard, Rebecca J. Drexler, Navneet S. Majhail, Lensa Idossa, and Heather Moore
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,Survivorship ,Article ,Patient Care Planning ,law.invention ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Quality of life (healthcare) ,Randomized controlled trial ,Cancer Survivors ,law ,Survivorship curve ,Patient-Centered Care ,Surveys and Questionnaires ,Health care ,Clinical endpoint ,Medicine ,Humans ,Patient Reported Outcome Measures ,Young adult ,Precision Medicine ,Aged ,Aged, 80 and over ,business.industry ,Hematopoietic Stem Cell Transplantation ,Hematology ,Continuity of Patient Care ,Middle Aged ,Prognosis ,Hematologic Diseases ,3. Good health ,Transplantation ,Survival Rate ,Distress ,030220 oncology & carcinogenesis ,Emergency medicine ,Quality of Life ,Female ,business ,030215 immunology ,Follow-Up Studies - Abstract
Survivorship Care Plans (SCPs) may facilitate long-term care for cancer survivors, but their effectiveness has not been established in hematopoietic cell transplantation recipients. We evaluated the impact of individualized SCPs on patient-reported outcomes among transplant survivors. Adult (≥18 years at transplant) survivors who were 1-5 years post transplantation, proficient in English, and without relapse or secondary cancers were eligible for this multicenter randomized trial. SCPs were developed based on risk-factors and treatment exposures using patient data routinely submitted by transplant centers to the Center for International Blood and Marrow Transplant Research and published guidelines for long-term follow up of transplant survivors. Phone surveys assessing patient-reported outcomes were conducted at baseline and at 6 months. The primary end point was confidence in survivorship information, and secondary end points included cancer and treatment distress, knowledge of transplant exposures, health care utilization, and health-related quality of life. Of 495 patients enrolled, 458 completed a baseline survey and were randomized (care plan=231, standard care=227); 200 (87%) and 199 (88%) completed the 6-month assessments, respectively. Patients’ characteristics were similar in the two arms. Participants on the care plan arm reported significantly lower distress scores at 6 months and an increase in the Mental Component Summary quality of life score assessed by the Short Form 12 (SF-12) instrument. No effect was observed on the end point of confidence in survivorship information or other secondary outcomes. Provision of individualized SCPs generated using registry data was associated with reduced distress and improved mental domain of quality of life among 1-5 year hematopoietic cell transplantation survivors. Trial registered at clinicaltrials.gov 02200133.
- Published
- 2019
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