2,694 results on '"Ljungman, P"'
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2. Improved outcome of COVID-19 over time in patients treated with CAR T-cell therapy: Update of the European COVID-19 multicenter study on behalf of the European Society for Blood and Marrow Transplantation (EBMT) Infectious Diseases Working Party (IDWP) and the European Hematology Association (EHA) Lymphoma Group
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Spanjaart, Anne Mea, Ljungman, Per, Tridello, Gloria, Schwartz, Juana, Martinez-Cibrián, Nuria, Barba, Pere, Kwon, Mi, Lopez-Corral, Lucia, Martinez-Lopez, Joaquin, Ferra, Christelle, Di Blasi, Roberta, Ghesquieres, Hervé, Mutsaers, Pim, Calkoen, Friso, Jak, Margot, van Doesum, Jaap, Vermaat, Joost S. P., van der Poel, Marjolein, Maertens, Johan, Gambella, Massimiliano, Metafuni, Elisabetta, Ciceri, Fabio, Saccardi, Riccardo, Nicholson, Emma, Tholouli, Eleni, Matthew, Collin, Potter, Victoria, Bloor, Adrian, Besley, Caroline, Roddie, Claire, Wilson, Keith, Nagler, Arnon, Campos, Antonio, Petersen, Soeren Lykke, Folber, Frantisek, Bader, Peter, Finke, Jurgen, Kroger, Nicolaus, Knelange, Nina, de La Camara, Rafael, Kersten, Marie José, and Mielke, Stephan
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- 2024
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3. High-resolution dispersion modelling of PM2.5, PM10, NOx and NO2 exposure in metropolitan areas in Sweden 2000‒2018 – large health gains due to decreased population exposure
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Kilbo Edlund, Karl, Kisiel, Marta A., Asker, Christian, Segersson, David, Bennet, Cecilia, Spanne, Mårten, Gustafsson, Susanna, Lindvall, Jenny, Eneroth, Kristina, Tondel, Martin, Ljungman, Petter, Stockfelt, Leo, Pershagen, Göran, and Molnár, Peter
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- 2024
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4. Harmonizing definitions for hematopoietic recovery, graft rejection, graft failure, poor graft function, and donor chimerism in allogeneic hematopoietic cell transplantation: a report on behalf of the EBMT, ASTCT, CIBMTR, and APBMT
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Sureda, Anna, Carpenter, Paul A., Bacigalupo, Andrea, Bhatt, Vijaya Raj, de la Fuente, Josu, Ho, Aloysius, Kean, Leslie, Lee, Jong Wook, Sánchez-Ortega, Isabel, Savani, Bipin N., Schetelig, Johannes, Stadtmauer, Edward A., Takahashi, Yoshiyuki, Atsuta, Yoshiko, Koreth, John, Kröger, Nicolaus, Ljungman, Per, Okamoto, Shinichiro, Popat, Uday, Soiffer, Robert, Stefanski, Heather E., and Kharfan-Dabaja, Mohamed A.
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- 2024
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5. PHF6 cooperates with SWI/SNF complexes to facilitate transcriptional progression
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Priya Mittal, Jacquelyn A. Myers, Raymond D. Carter, Sandi Radko-Juettner, Hayden A. Malone, Wojciech Rosikiewicz, Alexis N. Robertson, Zhexin Zhu, Ishwarya V. Narayanan, Baranda S. Hansen, Meadow Parrish, Natarajan V. Bhanu, Robert J. Mobley, Jerold E. Rehg, Beisi Xu, Yiannis Drosos, Shondra M. Pruett-Miller, Mats Ljungman, Benjamin A. Garcia, Gang Wu, Janet F. Partridge, and Charles W. M. Roberts
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Science - Abstract
Abstract Genes encoding subunits of SWI/SNF (BAF) chromatin remodeling complexes are mutated in nearly 25% of cancers. To gain insight into the mechanisms by which SWI/SNF mutations drive cancer, we contributed ten rhabdoid tumor (RT) cell lines mutant for SWI/SNF subunit SMARCB1 to a genome-scale CRISPR–Cas9 depletion screen performed across 896 cell lines. We identify PHF6 as specifically essential for RT cell survival and demonstrate that dependency on Phf6 extends to Smarcb1-deficient cancers in vivo. As mutations in either SWI/SNF or PHF6 can cause the neurodevelopmental disorder Coffin-Siris syndrome, our findings of a dependency suggest a previously unrecognized functional link. We demonstrate that PHF6 co-localizes with SWI/SNF complexes at promoters, where it is essential for maintenance of an active chromatin state. We show that in the absence of SMARCB1, PHF6 loss disrupts the recruitment and stability of residual SWI/SNF complex members, collectively resulting in the loss of active chromatin at promoters and stalling of RNA Polymerase II progression. Our work establishes a mechanistic basis for the shared syndromic features of SWI/SNF and PHF6 mutations in CSS and the basis for selective dependency on PHF6 in SMARCB1-mutant cancers.
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- 2024
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6. Long-term ambient air pollution exposure and renal function and biomarkers of renal disease
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Karl Kilbo Edlund, Yiyi Xu, Eva M. Andersson, Anders Christensson, Mats Dehlin, Helena Forsblad-d’Elia, Florencia Harari, Stefan Ljunggren, Peter Molnár, Anna Oudin, Magnus Svartengren, Petter Ljungman, and Leo Stockfelt
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Air pollution ,Kidney disease ,eGFR ,Biomarkers ,Matrix metalloproteinases ,Industrial medicine. Industrial hygiene ,RC963-969 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Despite accumulating evidence of an association between air pollution and renal disease, studies on the association between long-term exposure to air pollution and renal function are still contradictory. This study aimed to investigate this association in a large population with relatively low exposure and with improved estimation of renal function as well as renal injury biomarkers. Methods We performed a cross-sectional analysis in the middle-aged general population participating in the Swedish CardioPulmonary bioImaging Study (SCAPIS; n = 30 154). Individual 10-year exposure to total and locally emitted fine particulate matter (PM2.5), inhalable particulate matter (PM10), and nitrogen oxides (NOx) were modelled using high-resolution dispersion models. Linear regression models were used to estimate associations between exposures and estimated glomerular filtration rate (eGFR, combined creatinine and cystatin C) and serum levels of renal injury biomarkers (KIM-1, MCP-1, IL-6, IL-18, MMP-2, MMP-7, MMP-9, FGF-23, and uric acid), with consideration of potential confounders. Results Median long-term PM2.5 exposure was 6.2 µg/m3. Almost all participants had a normal renal function and median eGFR was 99.2 mL/min/1.73 m2. PM2.5 exposure was associated with 1.3% (95% CI 0.6, 2.0) higher eGFR per 2.03 µg/m3 (interquartile range, IQR). PM2.5 exposure was also associated with elevated serum matrix metalloproteinase 2 (MMP-2) concentration, with 7.2% (95% CI 1.9, 12.8) higher MMP-2 per 2.03 µg/m3. There was a tendency towards an association between PM10 and higher levels of uric acid, but no associations were found with the other biomarkers. Associations with other air pollutants were null or inconsistent. Conclusion In this large general population sample at low exposure levels, we found a surprising association between PM2.5 exposure and a higher renal filtration. It seems unlikely that particle function would improve renal function. However, increased filtration is an early sign of renal injury and may be related to the relatively healthy population at comparatively low exposure levels. Furthermore, PM2.5 exposure was associated with higher serum concentrations of MMP-2, an early indicator of renal and cardiovascular pathology.
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- 2024
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7. PHF6 cooperates with SWI/SNF complexes to facilitate transcriptional progression
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Mittal, Priya, Myers, Jacquelyn A., Carter, Raymond D., Radko-Juettner, Sandi, Malone, Hayden A., Rosikiewicz, Wojciech, Robertson, Alexis N., Zhu, Zhexin, Narayanan, Ishwarya V., Hansen, Baranda S., Parrish, Meadow, Bhanu, Natarajan V., Mobley, Robert J., Rehg, Jerold E., Xu, Beisi, Drosos, Yiannis, Pruett-Miller, Shondra M., Ljungman, Mats, Garcia, Benjamin A., Wu, Gang, Partridge, Janet F., and Roberts, Charles W. M.
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- 2024
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8. Long-term ambient air pollution exposure and renal function and biomarkers of renal disease
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Kilbo Edlund, Karl, Xu, Yiyi, Andersson, Eva M., Christensson, Anders, Dehlin, Mats, Forsblad-d’Elia, Helena, Harari, Florencia, Ljunggren, Stefan, Molnár, Peter, Oudin, Anna, Svartengren, Magnus, Ljungman, Petter, and Stockfelt, Leo
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- 2024
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9. Importance of hospital and clinical factors for early mortality in Takotsubo syndrome: Insights from the Swedish Coronary Angiography and Angioplasty Registry
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Gudmundsson, Thorsteinn, Redfors, Björn, Råmunddal, Truls, Angerås, Oskar, Petursson, Petur, Rawshani, Araz, Hagström, Henrik, Alfredsson, Joakim, Ekenbäck, Christina, Henareh, Loghman, Skoglund, Kristofer, Ljungman, Charlotta, Mohammad, Moman, Jernberg, Tomas, Fröbert, Ole, Erlinge, David, and Omerovic, Elmir
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- 2024
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10. Outcome of Human Parainfluenza Virus infection in allogeneic stem cell transplantation recipients: possible impact of ribavirin therapy
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Pérez, Ariadna, Montoro, Juan, Chorão, Pedro, Gómez, Dolores, Guerreiro, Manuel, Giménez, Estela, Villalba, Marta, Sanz, Jaime, Hernani, Rafael, Hernández-Boluda, Juan Carlos, Lorenzo, Ignacio, Navarro, David, Solano, Carlos, Ljungman, Per, and Piñana, José Luis
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- 2024
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11. Importance of hospital and clinical factors for early mortality in Takotsubo syndrome: Insights from the Swedish Coronary Angiography and Angioplasty Registry
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Thorsteinn Gudmundsson, Björn Redfors, Truls Råmunddal, Oskar Angerås, Petur Petursson, Araz Rawshani, Henrik Hagström, Joakim Alfredsson, Christina Ekenbäck, Loghman Henareh, Kristofer Skoglund, Charlotta Ljungman, Moman Mohammad, Tomas Jernberg, Ole Fröbert, David Erlinge, and Elmir Omerovic
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Takotsubo syndrome ,30-day mortality ,Machine learning ,Predictors of mortality ,Swedish Coronary Angiography and Angioplasty Registry (SCAAR) ,Gradient boosting ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Background Takotsubo syndrome (TTS) is an acute heart failure syndrome with symptoms similar to acute myocardial infarction. TTS is often triggered by acute emotional or physical stress and is a significant cause of morbidity and mortality. Predictors of mortality in patients with TS are not well understood, and there is a need to identify high-risk patients and tailor treatment accordingly. This study aimed to assess the importance of various clinical factors in predicting 30-day mortality in TTS patients using a machine learning algorithm. Methods We analyzed data from the nationwide Swedish Coronary Angiography and Angioplasty Registry (SCAAR) for all patients with TTS in Sweden between 2015 and 2022. Gradient boosting was used to assess the relative importance of variables in predicting 30-day mortality in TTS patients. Results Of 3,180 patients hospitalized with TTS, 76.0% were women. The median age was 71.0 years (interquartile range 62–77). The crude all-cause mortality rate was 3.2% at 30 days. Machine learning algorithms by gradient boosting identified treating hospitals as the most important predictor of 30-day mortality. This factor was followed in significance by the clinical indication for angiography, creatinine level, Killip class, and age. Other less important factors included weight, height, and certain medical conditions such as hyperlipidemia and smoking status. Conclusions Using machine learning with gradient boosting, we analyzed all Swedish patients diagnosed with TTS over seven years and found that the treating hospital was the most significant predictor of 30-day mortality.
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- 2024
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12. Pain in pediatric oncology—A Swedish nationwide follow‐up study among nurses and physicians
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T. Kamsvåg, J. Arvidson, T. Ek, L. vonEssen, and G. Ljungman
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children ,health workers ,pain ,pediatric oncology ,Pediatrics ,RJ1-570 - Abstract
Abstract To examine nurses' and physicians' assessments of pain in children with cancer, and to identify the methods in use to diagnose, evaluate, and treat pain. In addition, to examine whether/how the healthcare professionals' assessment and management of pain has changed compared to 1995 and identify the needs for training. The study has a descriptive and comparative design. 363 nurses and physicians working with children with cancer in Sweden were invited to participate in April 2017. Participants answered an updated version of a questionnaire used in 1995 by Ljungman et al. focusing on the healthcare professionals’ experience of pain among their patients, their pain treatment strategies, and need for training. 120 nurses and 65 physicians participated. Fifty percent of nurses and 55% of physicians answered that moderate‐to‐severe pain was experienced often or very often by children with cancer. Methods recommended in international guidelines to diagnose, evaluate, and treat pain were generally followed. Compared with findings from 1995 by Ljungman et al., nurses, and physicians assessed that moderate‐to‐severe pain was seen more often. The greatest need for training was reported for pharmacology, different routes for administration of opioids, treatment with nitrous oxide, and nonpharmacological interventions. Nurses and physicians assessed that moderate‐to‐severe pain is often present in children with cancer. More time to treat pain in the department and training in certain areas seem to be needed to improve pain management.
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- 2024
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13. Zinc Finger MYND-Type Containing 8 (ZMYND8) Is Epigenetically Regulated in Mutant Isocitrate Dehydrogenase 1 (IDH1) Glioma to Promote Radioresistance.
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Carney, Stephen, Banerjee, Kaushik, Mujeeb, Anzar, Zhu, Brandon, Haase, Santiago, Varela, Maria, Kadiyala, Padma, Tronrud, Claire, Zhu, Ziwen, Mukherji, Devarshi, Gorla, Preethi, Sun, Yilun, Tagett, Rebecca, Núñez, Felipe, Luo, Maowu, Luo, Weibo, Ljungman, Mats, Liu, Yayuan, Xia, Ziyun, Schwendeman, Anna, Qin, Tingting, Sartor, Maureen, Cahill, Daniel, Lowenstein, Pedro, Castro, Maria, and Costello, Joseph
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Humans ,Isocitrate Dehydrogenase ,MYND Domains ,Epigenesis ,Genetic ,Nuclear Proteins ,Poly(ADP-ribose) Polymerase Inhibitors ,Transcription Factors ,Glioma ,Cell Cycle Proteins - Abstract
PURPOSE: Mutant isocitrate dehydrogenase 1 (mIDH1) alters the epigenetic regulation of chromatin, leading to a hypermethylation phenotype in adult glioma. This work focuses on identifying gene targets epigenetically dysregulated by mIDH1 to confer therapeutic resistance to ionizing radiation (IR). EXPERIMENTAL DESIGN: We evaluated changes in the transcriptome and epigenome in a radioresistant mIDH1 patient-derived glioma cell culture (GCC) following treatment with an mIDH1-specific inhibitor, AGI-5198. We identified Zinc Finger MYND-Type Containing 8 (ZMYND8) as a potential target of mIDH1 reprogramming. We suppressed ZMYND8 expression by shRNA knockdown and genetic knockout (KO) in mIDH1 glioma cells and then assessed cellular viability to IR. We assessed the sensitivity of mIDH1 GCCS to pharmacologic inhibition of ZMYND8-interacting partners: HDAC, BRD4, and PARP. RESULTS: Inhibition of mIDH1 leads to an upregulation of gene networks involved in replication stress. We found that the expression of ZMYND8, a regulator of DNA damage response, was decreased in three patient-derived mIDH1 GCCs after treatment with AGI-5198. Knockdown of ZMYND8 expression sensitized mIDH1 GCCs to radiotherapy marked by decreased cellular viability. Following IR, mIDH1 glioma cells with ZMYND8 KO exhibit significant phosphorylation of ATM and sustained γH2AX activation. ZMYND8 KO mIDH1 GCCs were further responsive to IR when treated with either BRD4 or HDAC inhibitors. PARP inhibition further enhanced the efficacy of radiotherapy in ZMYND8 KO mIDH1 glioma cells. CONCLUSIONS: These findings indicate the impact of ZMYND8 in the maintenance of genomic integrity and repair of IR-induced DNA damage in mIDH1 glioma. See related commentary by Sachdev et al., p. 1648.
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- 2023
14. Correction: Harmonizing definitions for hematopoietic recovery, graft rejection, graft failure, poor graft function, and donor chimerism in allogeneic hematopoietic cell transplantation: a report on behalf of the EBMT, ASTCT, CIBMTR, and APBMT
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Sureda, Anna, Carpenter, Paul A., Bacigalupo, Andrea, Bhatt, Vijaya Raj, de la Fuente, Josu, Ho, Aloysius, Kean, Leslie, Lee, Jong Wook, Sánchez-Ortega, Isabel, Savani, Bipin N., Schetelig, Johannes, Stadtmauer, Edward A., Takahashi, Yoshiyuki, Atsuta, Yoshiko, Koreth, John, Kröger, Nicolaus, Ljungman, Per, Okamoto, Shinichiro, Popat, Uday, Soiffer, Robert, Stefanski, Heather E., and Kharfan-Dabaja, Mohamed A.
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- 2024
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15. Acceptability of a Serious Game About Proton Radiotherapy Designed for Children Aged 5 to 14 Years and Its Potential Impact on Perceived Anxiety: Feasibility and Randomized Controlled Pilot Trial
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Catarina Cederved, Gustaf Ljungman, Jon Back, Charlotte Ångström-Brännström, and Gunn Engvall
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Information technology ,T58.5-58.64 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract BackgroundChildren who are going to undergo radiotherapy have displayed fear and anxiety. Therefore, a web-based serious game was developed as a psychological preparation to investigate if it could affect anxiety levels. In an earlier stage, children with experience of radiotherapy had been part of the developmental process. ObjectiveThe study aimed to investigate the feasibility in terms of reach, usability, and acceptability of a serious game about proton radiotherapy and to pilot that it did not increase anxiety levels in children aged 5 to 14 years undergoing radiotherapy. MethodsThe design was a randomized controlled pilot trial with predefined feasibility criteria. In total, 28 children were assessed for eligibility, and 23 met the inclusion criteria. They were consecutively randomized into 1 of 2 study arms. One child was excluded after randomization. If randomized into arm 1, the children received the intervention before treatment started. Children in arm 2 were treated as controls. Questionnaires with fixed answers were used to assess anxiety levels (an adapted version of the State-Trait Anxiety Inventory for Children) and experiences of gameplay (an adapted version of Player Experience of Need Satisfaction [PENS]). The children were asked to answer questionnaires at 5 different measurement occasions during their radiotherapy treatment. ResultsIn arm 1, age ranged from 5 to 13 (mean 8.4, SD 2.4) years. In arm 2, age ranged from 5 to 11 (mean 7.6, SD 2.3) years. The sample consisted of 15 girls and 7 boys. The feasibility criterion that the children should play the game for 20 minutes or more was not met. Mean playtime for children in arm 1 was 32.1 (SD 23.8) minutes, where 18 children had played for at least 15 minutes. The criterion that 70% (n=16) or more of the participants should return all of the questionnaires was not met; however, more than 73% (n=16) returned the PENS questionnaires. The State-Trait Anxiety Inventory for Children was returned by 73% (n=16) on day 0, 77% (n=17) on day 1, 82% (n=18) on day 3, 82% (n=18) on day 6, and 86% (n=19) on day 15. ConclusionsAll feasibility criteria set for the study were not met, suggesting that adaptions need to be made if a future study is to be undertaken. Further, the analysis revealed that there was no indication that playing increased the children’s self-reported anxiety. The PENS questionnaire adapted for children showed promising results regarding player satisfaction when using the serious game. When studying children with severe conditions and young age, 5 measurement occasions seemed to be too many. Measuring both player satisfaction or experience and knowledge transfer would be preferable in future studies.
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- 2024
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16. Task-sharing spinal anaesthesia care in three rural Indian hospitals: a non-inferiority randomised controlled clinical trial
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Alexander W Peters, John G Meara, Saurabh Saluja, Isaac Wasserman, Salim Afshar, Simone Sandler, Anudari Zorigtbaatar, Craig D McClain, David Ljungman, Nakul Raykar, Raman Kataria, Emma Svensson, Veena Sheshadri, Regi George, Nandakumar Menon, Ravi Manoharan, Meredith B. Brooks, Alaska Pendleton, Sudarshana Chatterjee, Wesley Rajaleelan, Jithen Krishnan, and Gnanaraj Jesudian
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Medicine (General) ,R5-920 ,Infectious and parasitic diseases ,RC109-216 - Abstract
Background Task-sharing of spinal anaesthesia care by non-specialist graduate physicians, termed medical officers (MOs), is commonly practised in rural Indian healthcare facilities to mitigate workforce constraints. We sought to assess whether spinal anaesthesia failure rates of MOs were non-inferior to those of consultant anaesthesiologists (CA) following a standardised educational curriculum.Methods We performed a randomised, non-inferiority trial in three rural hospitals in Tamil Nadu and Chhattisgarh, India. Patients aged over 18 years with low perioperative risk (ASA I & II) were randomised to receive MO or CA care. Prior to the trial, MOs underwent task-based anaesthesia training, inclusive of remotely accessed lectures, simulation-based training and directly observed anaesthetic procedures and intraoperative care. The primary outcome measure was spinal anaesthesia failure with a non-inferiority margin of 5%. Secondary outcome measures consisted of incidence of perioperative and postoperative complications.Findings Between 12 July 2019 and 8 June 2020, a total of 422 patients undergoing surgical procedures amenable to spinal anaesthesia care were randomised to receive either MO (231, 54.7%) or CA care (191, 45.2%). Spinal anaesthesia failure rate for MOs (7, 3.0%) was non-inferior to those of CA (5, 2.6%); difference in success rate of 0.4% (95% CI=0.36–0.43%; p=0.80). Additionally, there were no statistically significant differences observed between the two groups for intraoperative or postoperative complications, or patients’ experience of pain during the procedure.Interpretation This study demonstrates that failure rates of spinal anaesthesia care provided by trained MOs are non-inferior to care provided by CAs in low-risk surgical patients. This may support policy measures that use task-sharing as a means of expanding anaesthesia care capacity in rural Indian hospitals.Trial registration number NCT04438811.
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- 2024
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17. Prevalence, management, and new treatment modalities of EBV-DNA-emia and EBV-PTLD after allo-HCT: survey of Infectious Diseases Working Party EBMT
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Styczynski, Jan, Tridello, Gloria, Wendel, Lotus, Knelange, Nina, Cesaro, Simone, Gil, Lidia, Ljungman, Per, Mikulska, Malgorzata, Averbuch, Dina, and de la Camara, Rafael
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- 2024
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18. Outcomes for patients with EBV-positive PTLD post-allogeneic HCT after failure of rituximab-containing therapy
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Socié, Gérard, Barba, Pere, Barlev, Arie, Sanz, Jaime, García-Cadenas, Irene, Chevallier, Patrice, Fagioli, Franca, Guzman-Becerra, Norma, Kumar, Deepali, Ljungman, Per, Pigneux, Arnaud, Sadetsky, Natalia, Yáñez San Segundo, Lucrecia, Shadman, Mazyar, Storek, Jan, Thirumalai, Dhanalakshmi, Xing, Baodong, and Mohty, Mohamad
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- 2024
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19. Fresh or frozen grafts for allogeneic stem cell transplantation: conceptual considerations and a survey on the practice during the COVID-19 pandemic from the EBMT Infectious Diseases Working Party (IDWP) and Cellular Therapy & Immunobiology Working Party (CTIWP)
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Worel, N., Ljungman, P., Verheggen, I. C. M., Hoogenboom, J. D., Knelange, N. S., Eikema, D.-J., Sánchez-Ortega, I., Riillo, C., Centorrino, I., Averbuch, D., Chabannon, C., de la Camara, R., Kuball, J., and Ruggeri, A.
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- 2023
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20. Residential exposure to transportation noise and risk of incident atrial fibrillation: a pooled study of 11 prospective Nordic cohortsResearch in context
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Jesse D. Thacher, Nina Roswall, Mikael Ögren, Andrei Pyko, Agneta Åkesson, Anna Oudin, Annika Rosengren, Aslak H. Poulsen, Charlotta Eriksson, David Segersson, Debora Rizzuto, Emilie Helte, Eva M. Andersson, Gunn Marit Aasvang, Gunnar Engström, Hrafnhildur Gudjonsdottir, Jenny Selander, Jesper H. Christensen, Jørgen Brandt, Karin Leander, Kim Overvad, Kristoffer Mattisson, Kristina Eneroth, Lara Stucki, Lars Barregard, Leo Stockfelt, Maria Albin, Mette K. Simonsen, Ole Raaschou-Nielsen, Pekka Jousilahti, Pekka Tiittanen, Petter L.S. Ljungman, Steen S. Jensen, Susanna Gustafsson, Tarja Yli-Tuomi, Thomas Cole-Hunter, Timo Lanki, Youn-Hee Lim, Zorana J. Andersen, Göran Pershagen, and Mette Sørensen
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Atrial fibrillation ,Arrhythmia ,Air pollution ,Cardiac ,Pooled cohort ,Road traffic noise ,Public aspects of medicine ,RA1-1270 - Abstract
Summary: Background: Transportation noise has been linked with cardiometabolic outcomes, yet whether it is a risk factor for atrial fibrillation (AF) remains inconclusive. We aimed to assess whether transportation noise was associated with AF in a large, pooled Nordic cohort. Methods: We pooled data from 11 Nordic cohorts, totaling 161,115 participants. Based on address history from five years before baseline until end of follow-up, road, railway, and aircraft noise was estimated at a residential level. Incident AF was ascertained via linkage to nationwide patient registries. Cox proportional hazards models were utilized to estimate associations between running 5-year time-weighted mean transportation noise (Lden) and AF after adjusting for sociodemographics, lifestyle, and air pollution. Findings: We identified 18,939 incident AF cases over a median follow-up of 19.6 years. Road traffic noise was associated with AF, with a hazard ratio (HR) and 95% confidence interval (CI) of 1.02 (1.00–1.04) per 10-dB of 5-year mean time-weighted exposure, which changed to 1.03 (1.01–1.06) when implementing a 53-dB cut-off. In effect modification analyses, the association for road traffic noise and AF appeared strongest in women and overweight and obese participants. Compared to exposures ≤40 dB, aircraft noise of 40.1–50 and > 50 dB were associated with HRs of 1.04 (0.93–1.16) and 1.12 (0.98–1.27), respectively. Railway noise was not associated with AF. We found a HR of 1.19 (1.02–1.40) among people exposed to noise from road (≥45 dB), railway (>40 dB), and aircraft (>40 dB) combined. Interpretation: Road traffic noise, and possibly aircraft noise, may be associated with elevated risk of AF. Funding: NordForsk.
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- 2024
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21. Psychometric properties of the Swedish version of the Parenting Concerns Questionnaire in parents with cancer
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Lisa Ljungman, Maria Romare Strandh, Niklas Gustafsson, Anna C. Muriel, Cynthia W. Moore, Pia Enebrink, and Anna Wikman
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Oncology ,parenting ,distress ,psychometrics ,validation study ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: Parenting concerns can be a major source of distress for patients with cancer who are parents of dependent children; however, these are often not addressed in health care. The Parenting Concerns Questionnaire (PCQ) is an instrument designed to assess parents’ worries about the impact of cancer on their children and their ability to parent during this time. The Swedish version of the PCQ has, however, not been evaluated. This study therefore aimed to examine the psychometric properties of the PCQ in a sample of Swedish parents with cancer. Material and methods: A sample of 336 patients with cancer having dependent children (≤18 years) were included in a cross-sectional web-based survey. Participants completed questionnaires assessing parenting concerns, depression, anxiety, and stress symptoms (DASS); self-efficacy, family functioning (FAD-GF); and sociodemographic and clinical characteristics. Descriptive analyses, as well as reliability and validity analyses, were conducted followed by a confirmatory factor analysis of the factor structure proposed by the authors of the original version of the PCQ. Results: The majority were mothers (94.9%) with breast cancer (66.4%) aged 40–50 years (59.5%). The results showed evidence for convergent, criterion, and known group’s validity, but the original three-factor structure of the PCQ was not fully supported by confirmatory factor analysis. Interpretation: Evaluating parenting concerns may be an important step towards identifying patients who could benefit from targeted psychosocial interventions. However, the PCQ may require some further refinement to fully capture the breadth of parenting concerns in parents with cancer in different settings.
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- 2024
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22. Parenting under pressure: a cross-sectional questionnaire study of psychological distress, parenting concerns, self-efficacy, and emotion regulation in parents with cancer
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Maria Romare Strandh, Pia Enebrink, Karin Stålberg, Renita Sörensdotter, Lisa Ljungman, and Anna Wikman
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neoplasms ,parents ,parenting concerns ,psychological distress ,depression ,anxiety ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: As many as one in four adults with cancer have children under 18 years. Balancing parenting and cancer is challenging and can be a source of psychological distress. This study aimed to examine psychological distress in parents with cancer and its associations with parenting concerns, self-efficacy, and emotion regulation. Materials and methods: This was a cross-sectional questionnaire study of 406 parents (aged 25–60 years) diagnosed with cancer within the last 5 years, with at least one dependent child (≤ 18 years). Parents completed questionnaires on psychological distress (DASS-21), parenting concerns (PCQ), self-efficacy (GSE), emotion regulation (ERQ), mental and physical health, and sociodemographics. Data were analysed using multiple logistic regressions on depression (yes/no), anxiety (yes/no), and stress (yes/no). Results: Higher parenting concerns were associated with greater odds of depression (OR = 2.33, 95% CI: 1.64–3.31), anxiety (OR = 2.30, 95% CI: 1.64–3.20), and stress (OR = 3.21, 95% CI: 2.20–4.69) when adjusting for health and sociodemographic factors. Poorer self-efficacy was associated with increased odds of anxiety (OR = 0.94, 95% CI: 0.89–0.99, p < 0.05), whereas lower use of cognitive reappraisal and higher use of expressive suppression increased the odds of depression (OR = 0.76, 95% CI: 0.59–0.98 | OR = 1.46, 95% CI: 1.18–1.80). Interpretation: The findings highlight the complexity of parental well-being in relation to parenthood and cancer, stressing the need for interventions that address relevant psychological factors to improve overall mental health in this population.
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- 2024
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23. Efficacy of a web-based psychoeducational intervention, Fex-can sex, for young adult childhood cancer survivors with sexual dysfunction: A randomized controlled trial
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Kristina Fagerkvist, Kirsi Jahnukainen, Lisa Ljungman, Claudia Lampic, and Lena Wettergren
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Childhood cancer survivors ,Psychoeducation ,Randomized controlled trial ,Sexual dysfunction ,Web-based intervention ,Young adults ,Information technology ,T58.5-58.64 ,Psychology ,BF1-990 - Abstract
Background: No web-based interventions addressing sexual problems are available for young adult survivors of childhood cancer. Aim: This study aimed to test the efficacy of a web-based psychoeducational intervention, Fex-Can Sex, to alleviate sexual problems in young adults treated for cancer during childhood. Method: This randomized controlled trial tested the effects of a 12-week, self-help, web-based intervention. Young adults (aged 19–40) reporting sexual dysfunction were drawn from a population-based national cohort of childhood cancer survivors and randomized to either an intervention group (IG, n = 142) or a wait-list control group (CG, n = 136). The primary outcome was ‘Satisfaction with sex life’ assessed by the PROMIS® SexFS v 2.0. Secondary outcomes included other SexFS domains, body image (BIS), emotional distress (HADS), health-related quality of life (EORTC QLQ-C30), and sex-related self-efficacy. Surveys were completed at baseline (T0), directly after the intervention (T1), and three months later (T2). The effects of the intervention were tested using t-test and linear mixed models, including intention-to-treat (ITT) and subgroups analysis. Adherence was based on log data extracted from the website system. The intervention included an open-ended question about perceived sexual problems. Results: No effect of the intervention was found in the primary outcome. Regarding secondary outcomes, the IG reported less vaginal dryness (Lubrication subscale) than the CG at T1 (p = 0.048) and T2 (p = 0.023). Furthermore, at T1, the IG reported less emotional distress than the CG (p = 0.047). Subgroup analyses showed that those with greater sexual problems at T0 improved over time (T1 and T2), regardless of group allocation. Overall, adherence to the intervention was low and participants' activity levels did not change the results. Additionally, some members of the IG reported increased understanding and acceptance of their sexual problems. Conclusion: The Fex-Can Sex intervention shows potential to improve sexual function, especially among those with greater dysfunction. To increase adherence and effect, we recommend the intervention to be further developed including more tailored content. Clinical trial registration: ISRCTN Registry, trial number: 33081791 (registered on November 27, 2019).
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- 2024
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24. External exposome and all-cause mortality in European cohorts: the EXPANSE project
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Federica Nobile, Konstantina Dimakopoulou, Christofer Åström, Fabián Coloma, Payam Dadvand, Jeroen de Bont, Kees de Hoogh, Dorina Ibi, Klea Katsouyanni, Petter Ljungman, Erik Melén, Mark Nieuwenhuijsen, Regina Pickford, Johan Nilsson Sommar, Cathryn Tonne, Roel C. H. Vermeulen, Danielle Vienneau, Jelle J. Vlaanderen, Kathrin Wolf, Evangelia Samoli, and Massimo Stafoggia
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air pollution ,air temperature ,exposome ,environment ,green space ,mortality ,Infectious and parasitic diseases ,RC109-216 - Abstract
BackgroundMany studies reported associations between long-term exposure to environmental factors and mortality; however, little is known on the combined effects of these factors and health. We aimed to evaluate the association between external exposome and all-cause mortality in large administrative and traditional adult cohorts in Europe.MethodsData from six administrative cohorts (Catalonia, Greece, Rome, Sweden, Switzerland and the Netherlands, totaling 27,913,545 subjects) and three traditional adult cohorts (CEANS-Sweden, EPIC-NL-the Netherlands, KORA–Germany, totaling 57,653 participants) were included. Multiple exposures were assigned at the residential addresses, and were divided into three a priori defined domains: (1) air pollution [fine particulate matter (PM2.5), nitrogen dioxide (NO₂), black carbon (BC) and warm-season Ozone (warm-O3)]; (2) land/built environment (Normalized Difference Vegetation Index—NDVI, impervious surfaces, and distance to water); (3) air temperature (cold- and warm-season mean and standard deviation). Each domain was synthesized through Principal Component Analysis (PCA), with the aim of explaining at least 80% of its variability. Cox proportional-hazards regression models were applied and the total risk of the external exposome was estimated through the Cumulative Risk Index (CRI). The estimates were adjusted for individual- and area-level covariates.ResultsMore than 205 million person-years at risk and more than 3.2 million deaths were analyzed. In single-component models, IQR increases of the first principal component of the air pollution domain were associated with higher mortality [HRs ranging from 1.011 (95% CI: 1.005–1.018) for the Rome cohort to 1.076 (1.071–1.081) for the Swedish cohort]. In contrast, lower levels of the first principal component of the land/built environment domain, pointing to reduced vegetation and higher percentage of impervious surfaces, were associated with higher risks. Finally, the CRI of external exposome increased mortality for almost all cohorts. The associations found in the traditional adult cohorts were generally consistent with the results from the administrative ones, albeit without reaching statistical significance.DiscussionVarious components of the external exposome, analyzed individually or in combination, were associated with increased mortality across European cohorts. This sets the stage for future research on the connections between various exposure patterns and human health, aiding in the planning of healthier cities.
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- 2024
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25. Update of recommendations for the management of COVID-19 in patients with haematological malignancies, haematopoietic cell transplantation and CAR T therapy, from the 2022 European Conference on Infections in Leukaemia (ECIL 9)
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Cesaro, Simone, Mikulska, Malgorzata, Hirsch, Hans H., Styczynski, Jan, Meylan, Sylvain, Cordonnier, Catherine, Navarro, Davide, von Lilienfeld-Toal, Marie, Mehra, Varun, Marchesi, Francesco, Besson, Caroline, Masculano, Raul Cordoba, Beutel, Gernot, Einsele, Herman, Maertens, Johan, de la Camara, Rafael, Ljungman, Per, and Pagano, Livio
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- 2023
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26. Hypertension: sex-related differences in drug treatment, prevalence and blood pressure control in primary care
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Bager, Johan-Emil, Manhem, Karin, Andersson, Tobias, Hjerpe, Per, Bengtsson-Boström, Kristina, Ljungman, Charlotta, and Mourtzinis, Georgios
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- 2023
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27. Decrease of lethal infectious complications in the context of causes of death (COD) after hematopoietic cell transplantation: COD-2 and COD-1 study of the Infectious Diseases Working Party EBMT
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Styczynski, Jan, Tridello, Gloria, Koster, Linda, Knelange, Nina, Wendel, Lotus, van Biezen, Anja, van der Werf, Steffie, Mikulska, Malgorzata, Gil, Lidia, Cordonnier, Catherine, Ljungman, Per, Averbuch, Diana, Cesaro, Simone, Baldomero, Helen, Chabannon, Christian, Corbacioglu, Selim, Dolstra, Harry, Glass, Bertram, Greco, Raffaella, Kröger, Nicolaus, de Latour, Régis Peffault, Mohty, Mohamad, Neven, Benedicte, Peric, Zinaida, Snowden, John A., Sureda, Anna, Yakoub-Agha, Ibrahim, and de la Camara, Rafael
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- 2023
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28. Neurocognition and mean radiotherapy dose to vulnerable brain structures: new organs at risk?
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Söderström, Helena, Walfridsson, Angelica, Martinsson, Ulla, Isacsson, Ulf, Brocki, Karin, Kleberg, Johan Lundin, and Ljungman, Gustaf
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- 2023
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29. Changes in lifestyle, adiposity, and cardiometabolic markers among young adults in Sweden during the COVID-19 pandemic
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Ekström, Sandra, Andersson, Niklas, Kull, Inger, Georgelis, Antonios, Ljungman, Petter L. S., Melén, Erik, and Bergström, Anna
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- 2023
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30. GRHL2-controlled gene expression networks in luminal breast cancer
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Wang, Zi, Coban, Bircan, Wu, Haoyu, Chouaref, Jihed, Daxinger, Lucia, Paulsen, Michelle T., Ljungman, Mats, Smid, Marcel, Martens, John W. M., and Danen, Erik H. J.
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- 2023
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31. The Swedish childhood tumor biobank: systematic collection and molecular characterization of all pediatric CNS and other solid tumors in Sweden
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Díaz de Ståhl, Teresita, Shamikh, Alia, Mayrhofer, Markus, Juhos, Szilvester, Basmaci, Elisa, Prochazka, Gabriela, Garcia, Maxime, Somarajan, Praveen Raj, Zielinska-Chomej, Katarzyna, Illies, Christopher, Øra, Ingrid, Siesjö, Peter, Sandström, Per-Erik, Stenman, Jakob, Sabel, Magnus, Gustavsson, Bengt, Kogner, Per, Pfeifer, Susan, Ljungman, Gustaf, Sandgren, Johanna, and Nistér, Monica
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- 2023
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32. Impact of heatwaves on all-cause mortality in India: A comprehensive multi-city study
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Jeroen de Bont, Amruta Nori-Sarma, Massimo Stafoggia, Tirthankar Banerjee, Vijendra Ingole, Suganthi Jaganathan, Siddhartha Mandal, Ajit Rajiva, Bhargav Krishna, Itai Kloog, Kevin Lane, Rajesh K Mall, Abhiyant Tiwari, Yaguang Wei, Gregory A. Wellenius, Dorairaj Prabhakaran, Joel Schwartz, Poornima Prabhakaran, and Petter Ljungman
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India ,Heatwaves ,Mortality ,Attributable deaths ,Climate change ,Environmental sciences ,GE1-350 - Abstract
Background: Heatwaves are expected to increase with climate change, posing a significant threat to population health. In India, with the world’s largest population, heatwaves occur annually but have not been comprehensively studied. Accordingly, we evaluated the association between heatwaves and all-cause mortality and quantifying the attributable mortality fraction in India. Methods: We obtained all-cause mortality counts for ten cities in India (2008–2019) and estimated daily mean temperatures from satellite data. Our main extreme heatwave was defined as two-consecutive days with an intensity above the 97th annual percentile. We estimated city-specific heatwave associations through generalised additive Poisson regression models, and meta-analysed the associations. We reported effects as the percentage change in daily mortality, with 95% confidence intervals (CI), comparing heatwave vs non-heatwave days. We further evaluated heatwaves using different percentiles (95th, 97th, 99th) for one, two, three and five-consecutive days. We also evaluated the influence of heatwave duration, intensity and timing in the summer season on heatwave mortality, and estimated the number of heatwave-related deaths. Findings: Among ∼ 3.6 million deaths, we observed that temperatures above 97th percentile for 2-consecutive days was associated with a 14.7 % (95 %CI, 10.3; 19.3) increase in daily mortality. Alternative heatwave definitions with higher percentiles and longer duration resulted in stronger relative risks. Furthermore, we observed stronger associations between heatwaves and mortality with higher heatwave intensity. We estimated that around 1116 deaths annually (95 %CI, 861; 1361) were attributed to heatwaves. Shorter and less intense definitions of heatwaves resulted in a higher estimated burden of heatwave-related deaths. Conclusions: We found strong evidence of heatwave impacts on daily mortality. Longer and more intense heatwaves were linked to an increased mortality risk, however, resulted in a lower burden of heatwave-related deaths. Both definitions and the burden associated with each heatwave definition should be incorporated into planning and decision-making processes for policymakers.
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- 2024
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33. Night and shift work patterns and incidence of type 2 diabetes and hypertension in a prospective cohort study of healthcare employees
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Andreas Viklund, Tomas Andersson, Jenny Selander, Manzur Kader, Maria Albin, Theo Bodin, Mikko Härmä, Petter Ljungman, and Carolina Bigert
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type 2 diabetes ,shift work pattern ,shift work ,hypertension ,night work ,prospective cohort study ,diabetes ,night shift ,healthcare worker ,healthcare ,Public aspects of medicine ,RA1-1270 - Abstract
OBJECTIVES: This study aimed to evaluate effects of night and shift work patterns on type 2 diabetes (T2D) and hypertension in a longitudinal study, with detailed information on working hours. METHODS: The cohort comprised about 28 000 nurses and nursing assistants employed for more than one year 2008–2016 in Stockholm, Sweden. The employee register held detailed individual information on daily working hours. Information on diagnoses came from national and regional registers. Hazard ratios (HR) and confidence intervals (CI) were estimated by discrete-time proportional hazard models, adjusting for sex, age, country of birth, and profession. RESULTS: During follow-up in 2013–2017, we identified 232 cases of T2D and 875 of hypertension. We observed an increased risk of T2D, but not hypertension, among employees who worked only night shifts the previous year (HR 1.59, 95% CI 1.02–2.43) and those with intensive shift work (>120 afternoon and/or night shifts the previous year: HR 1.67, 95% CI 1.11–2.48) compared to only day work. There was a non-significantly increased risk of T2D related to mixed day and afternoon shifts (HR 1.34, 95% CI 0.97–1.88). We observed tendencies in increased risk of T2D related to frequent spells of ≥3 consecutive night shifts and with number of years with exclusive (but not mixed) night work. CONCLUSIONS: Permanent night work and frequent afternoon and/or night shifts were associated with an increased risk of T2D the following year, but not hypertension. The T2D risk was, to some extent, affected by frequent spells of several night shifts in a row and by cumulative years with permanent night work.
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- 2023
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34. Neurocognition and mean radiotherapy dose to vulnerable brain structures: new organs at risk?
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Helena Söderström, Angelica Walfridsson, Ulla Martinsson, Ulf Isacsson, Karin Brocki, Johan Lundin Kleberg, and Gustaf Ljungman
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Pediatric brain tumor ,Neurocognition ,Radiotherapy doses ,Organs at risk ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Children with brain tumors are at high risk of neurocognitive decline after radiotherapy (RT). However, there is a lack of studies on how RT doses to organs at risk (OARs) impacts neurocognition. The aim of this study was to examine dose-risk relationships for mean RT dose to different brain structures important for neurocognitive networks. We explored previously established OARs and potentially new OARs. Methods A sample of 44 pediatric brain tumor survivors who had received proton and/or photon RT were included. Correlations between mean RT doses to OARs and IQ were analyzed. Previously established OARs were cochleae, optic chiasm, optic nerve, pituitary gland, hypothalamus, hippocampus and pons. Potential new OARs for RT-induced neurocognitive decline were cerebellum, vermis and thalamus. Results Mean RT dose to different OARs correlated with several IQ subtests. Higher mean RT dose to cochleae, optic nerve, cerebellum, vermis and pons was correlated with lower performance on particularly full-scale IQ (FIQ), Perceptual Reasoning (PRI), Working Memory (WMI) and Processing Speed Index (PSI). Higher mean RT dose to hippocampus correlated with lower performance on processing speed and working memory. For those receiving whole brain RT (WBRT), higher mean RT dose to the pituitary gland correlated with lower performance on working memory. Conclusion A high dose-risk correlation was found between IQ subtests and mean RT dose in established and potential new OARs. Thus, in the lack of validated dose constraints for vulnerable brain structures, a parsimonious approach in RT planning should be considered to preserve neurocognitive networks.
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- 2023
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35. Risk factors for a severe disease course in children with SARS-COV-2 infection following hematopoietic cell transplantation in the pre-Omicron period: a prospective multinational Infectious Disease Working Party from the European Society for Blood and Marrow Transplantation group (EBMT) and the Spanish Group of Hematopoietic Stem Cell Transplantation (GETH) study
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Averbuch, Dina, de la Camara, Rafael, Tridello, Gloria, Knelange, Nina Simone, Bykova, Tatiana A., Ifversen, Marianne, Dobsinska, Veronika, Ayas, Mouhab, Hamidieh, Amir Ali, Pichler, Herbert, Perez-Martinez, Antonio, Cesaro, Simone, Sundin, Mikael, Badell, Isabel, Bader, Peter, Johansson, Jan-Erik, Mirci-Danicar, Oana, Sedlacek, Petr, Paillard, Catherine, Gibson, Brenda, Lawson, Sarah, Kroeger, Nicolaus, Corbacioglu, Selim, Mikulska, Malgorzata, Piñana, Jose Luis, Styczynski, Jan, and Ljungman, Per
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- 2023
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36. Pre-operative radiotherapy is associated with superior local relapse-free survival in advanced synovial sarcoma
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Scheer, Monika, Hallmen, Erika, Vokuhl, Christian, Fuchs, Jörg, Tunn, Per-Ulf, Münter, Marc, Timmermann, Beate, Bauer, Sebastian, Henssen, Anton George, Kazanowska, Bernarda, Niggli, Felix, Ladenstein, Ruth, Ljungman, Gustaf, Eggert, Angelika, Klingebiel, Thomas, and Koscielniak, Ewa
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- 2023
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37. Losing a child to adolescent cancer: A register‐based cohort study of psychotropic medication use in bereaved parents
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Emma Hovén, Lisa Ljungman, Josefin Sveen, Charlotte Skoglund, Gustaf Ljungman, Rickard Ljung, and Anna Wikman
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adolescence ,bereavement ,cancer ,parents ,psychotropic medication ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Purpose To investigate the short‐ and long‐term risk of psychotropic medication use in parents who lose a child to cancer diagnosed in adolescence. Methods This is a Swedish nationwide register‐based study including 184 bereaved mothers and 184 bereaved fathers of 184 children diagnosed with cancer in adolescence. Logistic regression analyses, adjusted for sociodemographic characteristics and history of mental health problems, were performed to estimate risk of a prescription of psychotropic medication (anxiolytics, hypnotics/sedatives, antidepressants) in cancer‐bereaved parents from 1 year before to 5 years after the child's death, with a general population sample of non‐bereaved parents (n = 3291) as referents. Results At the year of the child's death, 28%–36% of mothers and 11%–20% of fathers had a prescription of anxiolytics, hypnotics/sedatives or antidepressants. The corresponding percentages for non‐bereaved mothers and fathers were 7%–12% and 4%–7%, respectively. Compared to non‐bereaved mothers, bereaved mothers showed higher odds of prescriptions from 1 year before up to four (anxiolytics) and 5 years (hypnotics/sedatives and antidepressants) after the child's death. Bereaved fathers showed higher odds than non‐bereaved fathers of prescriptions from 1 year before up to the year of (anxiolytics and hypnotics/sedatives) and 1 year after (antidepressants) the child's death. No differences in odds between bereaved and non‐bereaved fathers were found at 2 years after the child's death. Being unmarried, born outside Sweden, and having a history of mental health problems were associated with higher odds of prescribed medications. Conclusions Indicative of mental health problems of clinical importance, cancer‐bereaved parents had a higher prevalence of use of psychotropic medication. A decrease in medication use was evident with time, but still at 5 years after the child's death mothers displayed a higher use while fathers showed no difference to non‐bereaved fathers after 2 years.
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- 2023
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38. Global surgery, obstetric, and anaesthesia indicator definitions and reporting: An Utstein consensus report.
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Davies, Justine I, Gelb, Adrian W, Gore-Booth, Julian, Martin, Janet, Mellin-Olsen, Jannicke, Åkerman, Christina, Ameh, Emmanuel A, Biccard, Bruce M, Braut, Geir Sverre, Chu, Kathryn M, Derbew, Miliard, Ersdal, Hege Langli, Guzman, Jose Miguel, Hagander, Lars, Haylock-Loor, Carolina, Holmer, Hampus, Johnson, Walter, Juran, Sabrina, Kassebaum, Nicolas J, Laerdal, Tore, Leather, Andrew JM, Lipnick, Michael S, Ljungman, David, Makasa, Emmanuel M, Meara, John G, Newton, Mark W, Østergaard, Doris, Reynolds, Teri, Romanzi, Lauri J, Santhirapala, Vatshalan, Shrime, Mark G, Søreide, Kjetil, Steinholt, Margit, Suzuki, Emi, Varallo, John E, Visser, Gerard HA, Watters, David, and Weiser, Thomas G
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General & Internal Medicine ,Medical and Health Sciences - Abstract
BackgroundIndicators to evaluate progress towards timely access to safe surgical, anaesthesia, and obstetric (SAO) care were proposed in 2015 by the Lancet Commission on Global Surgery. These aimed to capture access to surgery, surgical workforce, surgical volume, perioperative mortality rate, and catastrophic and impoverishing financial consequences of surgery. Despite being rapidly taken up by practitioners, data points from which to derive the indicators were not defined, limiting comparability across time or settings. We convened global experts to evaluate and explicitly define-for the first time-the indicators to improve comparability and support achievement of 2030 goals to improve access to safe affordable surgical and anaesthesia care globally.Methods and findingsThe Utstein process for developing and reporting guidelines through a consensus building process was followed. In-person discussions at a 2-day meeting were followed by an iterative process conducted by email and virtual group meetings until consensus was reached. The meeting was held between June 16 to 18, 2019; discussions continued until August 2020. Participants consisted of experts in surgery, anaesthesia, and obstetric care, data science, and health indicators from high-, middle-, and low-income countries. Considering each of the 6 indicators in turn, we refined overarching descriptions and agreed upon data points needed for construction of each indicator at current time (basic data points), and as each evolves over 2 to 5 (intermediate) and >5 year (full) time frames. We removed one of the original 6 indicators (one of 2 financial risk protection indicators was eliminated) and refined descriptions and defined data points required to construct the 5 remaining indicators: geospatial access, workforce, surgical volume, perioperative mortality, and catastrophic expenditure. A strength of the process was the number of people from global institutes and multilateral agencies involved in the collection and reporting of global health metrics; a limitation was the limited number of participants from low- or middle-income countries-who only made up 21% of the total attendees.ConclusionsTo track global progress towards timely access to quality SAO care, these indicators-at the basic level-should be implemented universally as soon as possible. Intermediate and full indicator sets should be achieved by all countries over time. Meanwhile, these evolutions can assist in the short term in developing national surgical plans and collecting more detailed data for research studies.
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- 2021
39. New trends in the management of cytomegalovirus infection after allogeneic hematopoietic cell transplantation: a survey of the Infectious Diseases Working Pary of EBMT
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Cesaro, Simone, Ljungman, Per, Tridello, Gloria, Mikulska, Malgorzata, Wendel, Lotus, Styczynski, Jan, Averbuch, Dina, and de la Camara, Rafael
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- 2023
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40. Changes in lifestyle, adiposity, and cardiometabolic markers among young adults in Sweden during the COVID-19 pandemic
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Sandra Ekström, Niklas Andersson, Inger Kull, Antonios Georgelis, Petter L. S. Ljungman, Erik Melén, and Anna Bergström
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Adiposity ,Blood pressure ,Lifestyle modifications ,Adults ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The COVID-19 pandemic has impacted on public health in several ways. The aim of the study was to investigate changes in lifestyle, adiposity, and cardiometabolic markers among young adults in Sweden during the COVID-19 pandemic and their determinants. Methods The study included 1 004 participants from the population-based birth cohort BAMSE. Anthropometrics, body composition (bioelectric impedance analyses), pulse, and blood pressure were measured before (December 2016–May 2019; mean age 22.6 years) and during (October 2020–June 2021; mean age 25.7 years) the COVID-19 pandemic. Lifestyle changes during the pandemic were assessed through a questionnaire. Results All measures of adiposity (weight, BMI, body fat percentage, trunk fat percentage) and cardiometabolic markers (blood pressure, pulse) increased during the study period (e.g., body fat percentage by a median of + 0.8% in females, p
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- 2023
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41. The Swedish childhood tumor biobank: systematic collection and molecular characterization of all pediatric CNS and other solid tumors in Sweden
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Teresita Díaz de Ståhl, Alia Shamikh, Markus Mayrhofer, Szilvester Juhos, Elisa Basmaci, Gabriela Prochazka, Maxime Garcia, Praveen Raj Somarajan, Katarzyna Zielinska-Chomej, Christopher Illies, Ingrid Øra, Peter Siesjö, Per-Erik Sandström, Jakob Stenman, Magnus Sabel, Bengt Gustavsson, Per Kogner, Susan Pfeifer, Gustaf Ljungman, Johanna Sandgren, and Monica Nistér
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Biobank ,Genomic ,Childhood cancer ,Next generation sequence ,Mutation ,Bioinformatics ,Medicine - Abstract
Abstract The Swedish Childhood Tumor Biobank (BTB) is a nonprofit national infrastructure for collecting tissue samples and genomic data from pediatric patients diagnosed with central nervous system (CNS) and other solid tumors. The BTB is built on a multidisciplinary network established to provide the scientific community with standardized biospecimens and genomic data, thereby improving knowledge of the biology, treatment and outcome of childhood tumors. As of 2022, over 1100 fresh-frozen tumor samples are available for researchers. We present the workflow of the BTB from sample collection and processing to the generation of genomic data and services offered. To determine the research and clinical utility of the data, we performed bioinformatics analyses on next-generation sequencing (NGS) data obtained from a subset of 82 brain tumors and patient blood-derived DNA combined with methylation profiling to enhance the diagnostic accuracy and identified germline and somatic alterations with potential biological or clinical significance. The BTB procedures for collection, processing, sequencing, and bioinformatics deliver high-quality data. We observed that the findings could impact patient management by confirming or clarifying the diagnosis in 79 of the 82 tumors and detecting known or likely driver mutations in 68 of 79 patients. In addition to revealing known mutations in a broad spectrum of genes implicated in pediatric cancer, we discovered numerous alterations that may represent novel driver events and specific tumor entities. In summary, these examples reveal the power of NGS to identify a wide number of actionable gene alterations. Making the power of NGS available in healthcare is a challenging task requiring the integration of the work of clinical specialists and cancer biologists; this approach requires a dedicated infrastructure, as exemplified here by the BTB.
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- 2023
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42. Implementing data on targeted therapy from the INFORM registry platform for children with relapsed cancer in Sweden
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Sofia Wallin, Ingrid Øra, Gabriela Prochazka, Johanna Sandgren, Caroline Björklund, Gustaf Ljungman, Hartmut Vogt, Torben Ek, Cornelis M. van Tilburg, and Anna Nilsson
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pediatric oncology ,pediatric cancer ,precision medicine ,molecular diagnostic techniques ,molecular targeted therapy ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundAdvances in treatment of childhood malignancies have improved overall cure rates to 80%. Nevertheless, cancer is still the most common cause of childhood mortality in Sweden. The prognosis is particularly poor for relapse of high-risk malignancies. In the international INFORM registry, tumor tissue from patients with relapsed, refractory, or progressive pediatric cancer as well as from very-high risk primary tumors is biologically characterized using next-generation sequencing to identify possible therapeutic targets. We analyzed data from Swedish children included in the INFORM registry concerning patient characteristics, survival, sequencing results and whether targeted treatment was administered to the children based on the molecular findings.MethodsA registry-based descriptive analysis of 184 patients included in the INFORM registry in Sweden during 2016–2021.ResultsThe most common diagnoses were soft tissue and bone sarcomas followed by high grade gliomas [including diffuse intrinsic pontine glioma (DIPG)]. Complete molecular analysis was successful for 203/212 samples originating from 184 patients. In 88% of the samples, at least one actionable target was identified. Highly prioritized targets, according to a preset scale, were identified in 48 (24%) samples from 40 patients and 24 of these patients received matched targeted treatment but only six children within a clinical trial. No statistically significant benefit in terms of overall survival or progression free survival was observed between children treated with matched targeted treatment compared to all others.ConclusionThis international collaborative study demonstrate feasibility regarding sequencing of pediatric high-risk tumors providing molecular data regarding potential actionable targets to clinicians. For a few individuals the INFORM analysis was of utmost importance and should be regarded as a new standard of care with the potential to guide targeted therapy.
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- 2024
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43. Disentangling associations between multiple environmental exposures and all-cause mortality: an analysis of European administrative and traditional cohorts
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Konstantina Dimakopoulou, Federica Nobile, Jeroen de Bont, Kathrin Wolf, Danielle Vienneau, Dorina Ibi, Fabián Coloma, Regina Pickford, Christofer Åström, Johan Nilsson Sommar, Maria-Iosifina Kasdagli, Kyriakos Souliotis, Anastasios Tsolakidis, Cathryn Tonne, Erik Melén, Petter Ljungman, Kees de Hoogh, Roel C. H. Vermeulen, Jelle J. Vlaanderen, Klea Katsouyanni, Massimo Stafoggia, and Evangelia Samoli
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administrative cohorts ,traditional adult cohorts ,all-cause mortality ,external exposome ,air pollution ,NDVI ,Infectious and parasitic diseases ,RC109-216 - Abstract
BackgroundWe evaluated the independent and joint effects of air pollution, land/built environment characteristics, and ambient temperature on all-cause mortality as part of the EXPANSE project.MethodsWe collected data from six administrative cohorts covering Catalonia, Greece, the Netherlands, Rome, Sweden, and Switzerland and three traditional cohorts in Sweden, the Netherlands, and Germany. Participants were linked to spatial exposure estimates derived from hybrid land use regression models and satellite data for: air pollution [fine particulate matter (PM2.5), nitrogen dioxide (NO₂), black carbon (BC), warm season ozone (O3)], land/built environment [normalized difference vegetation index (NDVI), distance to water, impervious surfaces], and ambient temperature (the mean and standard deviation of warm and cool season temperature). We applied Cox proportional hazard models accounting for several cohort-specific individual and area-level variables. We evaluated the associations through single and multiexposure models, and interactions between exposures. The joint effects were estimated using the cumulative risk index (CRI). Cohort-specific hazard ratios (HR) were combined using random-effects meta-analyses.ResultsWe observed over 3.1 million deaths out of approximately 204 million person-years. In administrative cohorts, increased exposure to PM2.5, NO2, and BC was significantly associated with all-cause mortality (pooled HRs: 1.054, 1.033, and 1.032, respectively). We observed an adverse effect of increased impervious surface and mean season-specific temperature, and a protective effect of increased O3, NDVI, distance to water, and temperature variation on all-cause mortality. The effects of PM2.5 were higher in areas with lower (10th percentile) compared to higher (90th percentile) NDVI levels [pooled HRs: 1.054 (95% confidence interval (CI) 1.030–1.079) vs. 1.038 (95% CI 0.964–1.118)]. A similar pattern was observed for NO2. The CRI of air pollutants (PM2.5 or NO2) plus NDVI and mean warm season temperature resulted in a stronger effect compared to single-exposure HRs: [PM2.5 pooled HR: 1.061 (95% CI 1.021–1.102); NO2 pooled HR: 1.041 (95% CI 1.025–1.057)]. Non-significant effects of similar patterns were observed in traditional cohorts.DiscussionThe findings of our study not only support the independent effects of long-term exposure to air pollution and greenness, but also highlight the increased effect when interplaying with other environmental exposures.
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- 2024
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44. Urban and rural healthcare providers’ perspectives on HPV vaccination in Minnesota
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Elizabeth J. Polter, Ben Christianson, Anne Steinberg, Melody Doan, Hanna Ljungman, Maria E. Sundaram, Jeffrey J. VanWormer, Charnetta L. Williams, Huong Q. McLean, and Casper Bendixsen
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HPV ,human papillomavirus ,rural health ,rural health services ,vaccine hesitancy ,Immunologic diseases. Allergy ,RC581-607 ,Therapeutics. Pharmacology ,RM1-950 - Abstract
ABSTRACTHuman papillomavirus (HPV) vaccination can dramatically reduce the incidence of HPV-associated cancers. However, HPV vaccination coverage in rural areas is lower than in urban areas, and overall HPV vaccination coverage in the United States remains lower than other adolescent vaccines. We conducted 20 qualitative interviews with adolescent healthcare providers and clinic staff in urban and rural Minnesota and assessed their perspectives on HPV vaccination. Guiding interview topics included: strategies to persuade families to vaccinate their children, the impact of the patient-provider relationship and the clinical environment on vaccination uptake, and provider perceptions of parents’ vaccine attitudes. In thematic analysis, all participants reported using common vaccination strategies, such as framing the HPV vaccine in terms of cancer prevention. The analysis also revealed three themes described as occurring uniquely or more intensely in rural communities than urban communities: the rural value of choice or independence, the spread of misinformation, and close-knit, multifaceted patient-provider relationships in clinical practice. Interventions aimed at increasing HPV vaccination should consider the distinctive circumstances of rural healthcare providers and patients.
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- 2023
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45. ProFertil study protocol for the investigation of gonadotropin-releasing hormone agonists (GnRHa) during chemotherapy aiming at fertility protection of young women and teenagers with cancer in Sweden—a phase III randomised double-blinded placebo-controlled study
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Kenny A Rodriguez-Wallberg, Jonas Bergh, Antonis Valachis, Per Frisk, Theodoros Foukakis, Per Ljungman, Sandra Eloranta, Hanna Pauline Nilsson, Johan Malmros, Christina Linder Stragliotto, Erika Isaksson Friman, Barbro Linderholm, Anne Andersson, Sara Harrysson, Lovisa Vennström, and Helena Mörse
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Medicine - Abstract
Background Gonadotropin-releasing hormone agonists (GnRHa) cotreatment used to transiently suppress ovarian function during chemotherapy to prevent ovarian damage and preserve female fertility is used globally but efficacy is debated. Most clinical studies investigating a beneficial effect of GnRHa cotreatment on ovarian function have been small, retrospective and uncontrolled. Unblinded randomised studies on women with breast cancer have suggested a beneficial effect, but results are mixed with lack of evidence of improvement in markers of ovarian reserve. Unblinded randomised studies of women with lymphoma have not shown any benefit regarding fertility markers after long-term follow-up and no placebo-controlled study has been conducted so far. The aim of this study is to investigate if administration of GnRHa during cancer treatment can preserve fertility in young female cancer patients in a double-blind, placebo-controlled clinical trial.Methods and analysis A prospective, randomised, double-blinded, placebo-controlled, phase III study including 300 subjects with breast cancer. In addition, 200 subjects with lymphoma, acute leukemias and sarcomas will be recruited. Women aged 14–42 will be randomised 1:1 to treatment with GnRHa (triptorelin) or placebo for the duration of their gonadotoxic chemotherapy. Follow-up until 5 years from end of treatment (EoT). The primary endpoint will be change in anti-Müllerian hormone (AMH) recovery at follow-up 12 months after EoT, relative to AMH levels at EoT, comparing the GnRHa group and the placebo group in women with breast cancer.Ethics and dissemination This study is designed in accordance with the principles of Good Clinical Practice (ICH-GCP E6 (R2)), local regulations (ie, European Directive 2001/20/EC) and the ethical principles of the Declaration of Helsinki. Within 6 months of study completion, the results will be analysed and the study results shall be reported in the EudraCT database.Study registration The National Institutional review board in Sweden dnr:2021–03379, approval date 12 October 2021 (approved amendments 12 June 2022, dnr:2022-02924-02 and 13 December 2022, dnr:2022-05565-02). The Swedish Medical Product Agency 19 January 2022, Dnr:5.1-2021-98927 (approved amendment 4 February 2022). Manufacturing authorisation for authorised medicinal products approved 6 December 2021, Dnr:6.2.1-2020-079580. Stockholm Medical Biobank approved 22 June 2022, RBC dnr:202 253.Trial registration number NCT05328258; EudraCT number:2020-004780-71.
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- 2023
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46. Short‐Term Ambient Air Pollution Exposure and Risk of Out‐of‐Hospital Cardiac Arrest in Sweden: A Nationwide Case‐Crossover Study
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Marcus Dahlquist, Viveka Frykman, Jacob Hollenberg, Martin Jonsson, Massimo Stafoggia, Gregory A. Wellenius, and Petter L. S. Ljungman
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air pollution ,case‐crossover design ,out‐of‐hospital cardiac arrest ,particulate matter ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background Air pollution is one of the main risk factors for cardiovascular disease globally, but its association with out‐of‐hospital cardiac arrest at low air pollution levels is unclear. This nationwide study in Sweden aims to investigate if air pollution is associated with a higher risk of out‐of‐hospital cardiac arrest in an area with relatively low air pollution levels. Methods and Results This study was a nationwide time‐stratified case‐crossover study investigating the association between short‐term air pollution exposures and out‐of‐hospital cardiac arrest using data from the SRCR (Swedish Registry for Cardiopulmonary Resuscitation) between 2009 and 2019. Daily air pollution levels were estimated in 1×1‐km grids for all of Sweden using a satellite‐based machine learning model. The association between daily air pollutant levels and out‐of‐hospital cardiac arrest was quantified using conditional logistic regression adjusted for daily air temperature. Particulate matter
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- 2023
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47. Incidence and impact of community respiratory viral infections in post‐transplant cyclophosphamide‐based graft‐versus‐host disease prophylaxis and haploidentical stem cell transplantation
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Mulroney, Carolyn M, Abid, Muhammad Bilal, Bashey, Asad, Chemaly, Roy F, Ciurea, Stefan O, Chen, Min, Dandoy, Christopher E, Perez, Miguel A Diaz, Friend, Brian D, Fuchs, Ephraim, Ganguly, Siddhartha, Goldsmith, Scott R, Kanakry, Christopher G, Kim, Soyoung, Komanduri, Krishna V, Krem, Maxwell M, Lazarus, Hillard M, Ljungman, Per, Maziarz, Richard, Nishihori, Taiga, Patel, Sagar S, Perales, Miguel‐Angel, Romee, Rizwan, Singh, Anurag K, Wingard, John Reid, Yared, Jean, Riches, Marcie, and Taplitz, Randy
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Prevention ,Transplantation ,Lung ,Stem Cell Research - Nonembryonic - Human ,Stem Cell Research ,Hematology ,Rare Diseases ,Organ Transplantation ,Orphan Drug ,Cancer ,Infection ,Good Health and Well Being ,Adolescent ,Adult ,Aged ,Aged ,80 and over ,Child ,Child ,Preschool ,Community-Acquired Infections ,Cyclophosphamide ,Female ,Graft vs Host Disease ,HLA Antigens ,Hematopoietic Stem Cell Transplantation ,Humans ,Immunosuppressive Agents ,Incidence ,Kaplan-Meier Estimate ,Leukemia ,Living Donors ,Male ,Middle Aged ,Myelodysplastic Syndromes ,Proportional Hazards Models ,Respiratory Tract Infections ,Retrospective Studies ,Siblings ,Transplantation ,Haploidentical ,Virus Diseases ,Young Adult ,Respiratory viral infection ,Post Transplant Cyclophosphamide ,Allogeneic transplant ,Cardiorespiratory Medicine and Haematology ,Immunology - Abstract
Community respiratory viral infections (CRVIs) are associated with pulmonary function impairment, alloimmune lung syndromes and inferior survival in human leucocyte antigen (HLA)-matched allogeneic haematopoietic stem cell transplant (HCT) recipients. Although the incidence of viral infections in HLA-haploidentical HCT recipients who receive post-transplant cyclophosphamide (PTCy)-based graft-versus-host disease (GVHD) prophylaxis is reportedly increased, there are insufficient data describing the incidence of CRVIs and the impact of donor source and PTCy on transplant outcomes. Analysing patients receiving their first HCT between 2012 and 2017 for acute myeloid leukaemia, acute lymphoblastic leukaemia and myelodysplastic syndromes, we describe comparative outcomes between matched sibling transplants receiving either calcineurin-based GVHD prophylaxis (SibCNI, N = 1605) or PTCy (SibCy, N = 403), and related haploidentical transplants receiving PTCy (HaploCy, N = 757). The incidence of CRVIs was higher for patients receiving PTCy, regardless of donor type. Patients in the HaploCy cohort who developed a CRVI by day +180 had both a higher risk of treatment-related mortality [hazard ratio (HR) 2⋅14, 99% confidence interval (CI) 1⋅13-4⋅07; P = 0⋅002] and inferior 2-year overall survival (HR 1⋅65, 99% CI 1⋅11-2⋅43; P = 0⋅001) compared to SibCNI with no CRVI. This finding justifies further research into long-term antiviral immune recovery, as well as development of preventive and treatment strategies to improve long-term outcomes in such patients.
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- 2021
48. Psychotropic medication use in parents of survivors of adolescent cancer: A register‐based cohort study
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Anna Wikman, Emma Hovén, Anette Alvariza, Malin Lövgren, Ulrika Kreicbergs, Charlotte Skoglund, Emma Fransson, Gustaf Ljungman, Rickard Ljung, and Lisa Ljungman
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adolescence ,antidepressants ,anxiolytics ,childhood cancer ,hypnotics/sedatives ,mental health problems ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background The aim was to investigate psychotropic medication use in parents of survivors of adolescent cancer from the acute post‐diagnostic phase and up to 2 years following the cancer diagnosis. Methods This study had a nationwide register‐based cohort design comparing psychotropic medication use in parents of adolescent survivors of cancer (n = 2323) to use in parents of cancer‐free controls (n = 20,868). Cox proportional hazards models, adjusted for cancer diagnostic group, parents' age, country of birth, education level, marital status and previous mental health problems estimated the risk of use from the time of the cancer diagnosis up to 2 years later. Results During the first 6 months after the cancer diagnosis, both mothers and fathers had an increased risk of use of anxiolytics (mothers: HRadj 1.71, 95% CI 1.30–2.25; fathers: HRadj 1.57, 95% CI 1.10–2.45) and hypnotics/sedatives (mothers: HRadj 1.53, 95% CI 1.23–1.90; fathers: HRadj 1.32, 95% CI 1.00–1.75). For fathers with a prescription of psychotropic medication during the first 6 months after the cancer diagnosis, the risk remained increased after 6 months (HRadj 1.66, 95% CI 1.04–2.65). From 6 months after the cancer diagnosis, only the risk of antidepressant use among mothers was increased (HRadj 1.38, 95% CI 1.08–1.76). Risk factors included being divorced/widowed, born in a non‐Nordic country, older age and having had previous mental health problems. Conclusion Our study results show that during the immediate post‐diagnostic phase, mothers and fathers of survivors of adolescent cancer are at increased risk of use of anxiolytics and sedatives, whereas only mothers are at increased risk of antidepressant use from 6 months until 2 years after the diagnosis. Further, previous mental health problems were shown to be the strongest risk factor for psychotropic medication use in both mothers and fathers, pointing to the particular vulnerability of these parents.
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- 2022
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49. Short and long-term associations between serum proteins linked to cardiovascular disease and particle exposure among constructions workers
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Anda R Gliga, Karin Grahn, Per Gustavsson, Petter Ljungman P, Maria Albin, Jenny Selander, and Karin Broberg
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respirable crystalline silica ,serum protein ,cardiovascular biomarker ,occupational exposure ,cardiovascular disease ,protein ,biomarker ,particle ,construction worker ,Public aspects of medicine ,RA1-1270 - Abstract
OBJECTIVES: Construction workers are exposed to respirable dust, including respirable crystalline silica (RCS), which is a potential risk factor for cardiovascular disease (CVD). The aim of this study was to evaluate whether exposure to particles among construction workers is associated with short- and long-term alterations in CVD-related serum proteins. METHODS: Using proximity extension assay, we measured 92 serum proteins linked to CVD among active male construction workers (N=65, non-smokers) sampled on two occasions: during work and after vacation. First, we used linear models to identify short-term changes in proteins associated with particle exposure (assessed as respirable dust and RCS) during work. Secondly, we used linear mixed models to evaluate whether these associations were long-term, ie, persistent after vacation. RESULTS: The median exposure to respirable dust and RCS during work were 0.25 mg/m3 and 0.01 mg/m3, respectively. Respirable dust was associated with short-term changes in six proteins (tissue factor, growth hormone, heme oxygenase-1, dickkopf-related protein-1, platelet-derived growth factor-B, stem cell factor); long-term associations were observed for the former three proteins. RCS was associated with short-term changes in five proteins (carcinoembryonic antigen-related cell adhesion molecule-8, hydroxyacid oxidase-1, tissue factor, carbonic anhydrase-5A, lectin-like oxidized LDL receptor-1); long-term associations were observed for the former four proteins. CONCLUSIONS: Moderate exposure to particles in the construction industry is associated with both short- and long-term changes in circulating CVD-related proteins. Further studies are needed to evaluate if these changes are predictors of occupationally induced clinical CVD.
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- 2023
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50. Histone H3 K27M-mediated regulation of cancer cell stemness and differentiation in diffuse midline glioma
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Monika Sharma, Ivana Barravecchia, Brian Magnuson, Sarah F. Ferris, April Apfelbaum, Nneka E. Mbah, Jeanette Cruz, Varunkumar Krishnamoorthy, Robert Teis, McKenzie Kauss, Carl Koschmann, Costas A. Lyssiotis, Mats Ljungman, and Stefanie Galban
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Diffuse midline glioma (DMG) ,Cancer stem cells ,H3K27M ,Resistance ,Radiosensitization ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Therapeutic resistance remains a major obstacle to preventing progression of H3K27M-altered Diffuse Midline Glioma (DMG). Resistance is driven in part by ALDH-positive cancer stem cells (CSC), with high ALDH1A3 expression observed in H3K27M-mutant DMG biopsies. We hypothesized that ALDH-mediated stemness and resistance may in part be driven by the oncohistone itself. Upon deletion of H3K27M, ALDH1A3 expression decreased dramatically and was accompanied by a gain in astrocytic marker expression and a loss of neurosphere forming potential, indicative of differentiation. Here we show that the oncohistone regulates histone acetylation through ALDH1A3 in a Wnt-dependent manner and that loss of H3K27M expression results in sensitization of DMGs to radiotherapy. The observed elevated Wnt signaling in H3K27M-altered DMG likely stems from a dramatic suppression of mRNA and protein expression of the Wnt inhibitor EYA4 driven by the oncohistone. Thus, our findings identify EYA4 as a bona fide tumor suppressor in DMG that upon suppression, results in aberrant Wnt signaling to orchestrate stemness and differentiation. Future studies will explore whether overexpression of EYA4 in DMG can impede growth and invasion. In summary, we have gained mechanistic insight into H3K27M-mediated regulation of cancer stemness and differentiation, which provides rationale for exploring new therapeutic targets for DMG.
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- 2023
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