259 results on '"D. Etienne"'
Search Results
102. [Circumferential analysis of digitalized gamma angiocardiography by assessment of regional left ventricular contraction]
- Author
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P, de Vernejoul, P, Albarède, D, Etienne, A, Vacheron, J P, Metzger, and C, Le Pailleur
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Diastole ,Systole ,Angiocardiography ,Humans ,Technetium ,Ventricular Function ,Myocardial Contraction - Abstract
After acquisition of a digital equilibrium gamma-angiocardiographie, circumferential analysis of end-diastolic and end-systolic frames gives 120 points diastolic and systolic curves. Their difference represents systolic volume and leads to regional left ventricular ejection fraction assessment at the considered radius level. The circumferential analysis evolute gives the regional left ventricular ejection fraction representative curves which allows especially differential diagnosis between left ventricular akinesia and dyskinesia.
- Published
- 1987
103. [Antibiotics in periodontics. Round table held 23 November 1985]
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M, Brion, J, Charon, D, Etienne, Y, Roche, and J P, Chairay
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Bacteria ,Humans ,Tetracycline ,Periodontal Diseases ,Anti-Bacterial Agents - Published
- 1986
104. ChemInform Abstract: EPITAXIAL GROWTH OF CUBIC ZNSXSE1-X BY VAPOR PHASE TRANSPORT
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L. Soonckindt, D. Etienne, and G. Bougnot
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Chemistry ,Vapor phase ,Analytical chemistry ,General Medicine ,Epitaxy - Published
- 1980
105. [Synthetic non-resorbable materials: porous and non-porous hydroxyapatites]
- Author
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D, Etienne and Y, Roche
- Subjects
Alveoloplasty ,Surface Properties ,Humans ,Biocompatible Materials ,Hydroxyapatites ,Prostheses and Implants ,Periodontal Diseases - Published
- 1987
106. [Corticoids. Pharmacology and therapeutics]
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S D, Etienne, O, Chosidow, and S, Herson
- Subjects
Adrenocortical Hyperfunction ,Receptors, Glucocorticoid ,Risk Factors ,Prednisolone ,Iatrogenic Disease ,Immunity ,Animals ,Humans ,Prednisone ,Drug Interactions ,Glucocorticoids ,Adrenal Insufficiency - Published
- 1989
107. [Plasma exchange in dermatomyositis and polymyositis. Retrospective study of 38 cases of plasma exchange]
- Author
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S, Herson, C, Lok, J C, Roujeau, A, Coutellier, S D, Etienne, J, Revuz, F, Schooneman, A, Gérard, and P, Godeau
- Subjects
Adult ,Male ,Time Factors ,Adolescent ,Myositis ,Plasma Exchange ,Middle Aged ,Dermatomyositis ,Child, Preschool ,Humans ,Female ,Child ,Aged ,Retrospective Studies - Abstract
In order to evaluate the efficacity of plasma exchanges (PE) in dermatomyositis and polymyositis, the case histories of 38 patients, who had undergone plasma exchanges between 1980 and 1986 in 10 French plasmapheresis centers, were studied. Large volume PE were performed in 34 patients after failure of conventional therapy and were part of the initial regimen for the 4 others. The initial activity of the muscle disease was acute in 27 patients and subacute or chronic in 11 cases. Clinical results were evaluated on a functional scale based on changes in muscle force: 24 patients improved (10 appreciably and 14 moderately) and 14 remained unchanged. PE were well tolerated in 23 patients. But side effects occurred in 15 patients, necessitating treatment withdrawal in 4 cases. PE seem to be more effective when the dermatomyositis is acute and evolutive than when it is chronic and insidious. The encouraging results of this exhaustive retrospective study prompt us to set up a prospective randomized trial.
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- 1989
108. [The liver and periarteritis nodosa]
- Author
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D, Le Thi Huong, C, de Gennes, L, Guillevin, B, Wechsler, S D, Etienne, O, Blétry, and P, Godeau
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Male ,Liver Diseases ,Humans ,Female ,Middle Aged ,Hepatitis B ,Prognosis ,Polyarteritis Nodosa - Published
- 1989
109. [Immediate filling of extraction sites in general practice: use of a resorbable biomaterial, natural coral]
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J P, Ouhayoun and D, Etienne
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Cnidaria ,Dental Implantation ,Tooth Extraction ,Alveolar Process ,General Practice, Dental ,Animals ,Humans ,Bone Resorption - Published
- 1989
110. [Periodontal therapy in 1989]
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J P, Oubayoun and D, Etienne
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Epithelial Attachment ,Humans ,Regeneration ,Periodontal Diseases - Published
- 1989
111. [Periodontitis and immune response]
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Y, Roche, D, Etienne, and J, Morrisset
- Subjects
Immunity, Cellular ,Antibody Formation ,Humans ,Periodontitis - Published
- 1987
112. [Periodontal disease and patients at risk]
- Author
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D, Etienne and J P, Chairay
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Risk Factors ,Humans ,Periodontal Diseases - Published
- 1989
113. [Subacute infectious endocarditis in the elderly. Retrospective study of 33 cases]
- Author
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S, Legrain, S, Herson, S D, Etienne, G, Chomette, J P, Bouchon, and P, Godeau
- Subjects
Aged, 80 and over ,Male ,Endocarditis, Subacute Bacterial ,Humans ,Female ,Aged ,Retrospective Studies - Abstract
The authors reviewed 33 cases of infectious endocarditis in patients over 65 years of age and classified according to Von Reyn's diagnostic criteria. Twenty-four patients had organic valvular disease, 4 had a prosthetic valve, and in 4 cases the diagnosis of the murmur was uncertain. Positive blood cultures were obtained in 79 p. 100 of cases. The commonest infecting organism was the streptococcus (21 out of 26). In 11 patients, it was a Group D streptococcus and a recto-sigmoid colonic tumour was found in 3 cases. A dental portal of entry was suspected in 55 p. 100 of patients and this should guide the choice of prophylactic antibiotic therapy. The initial choice of antibiotic had to be changed in 19 patients, usually because of poor tolerance. Eight patients died and one underwent valve replacement within two months of hospital admission.
- Published
- 1988
114. [Determination of periodontal disease activity: traditional approach and current data]
- Author
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L, Jaoui and D, Etienne
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Recurrence ,Humans ,Periodontitis ,Periodontal Diseases - Published
- 1987
115. [Gingival grafts using connective and epithelial-connective grafts: clinical and histological study in humans]
- Author
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J P, Ouhayoun, J C, Goffaux, H M, Sawaf, D, Etienne, and N, Forest
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Connective Tissue ,Palate ,Gingiva ,Mouth Mucosa ,Humans ,Keratins ,Epithelium - Published
- 1988
116. Évaporation du séléniure de zinc en tube ouvert sous flux d'argon et d'hydrogène
- Author
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Joël Chevrier, D. Etienne, G. Bougnot, Centre d'Electronique et de Micro-optoélectronique de Montpellier (CEM2), and Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Materials science ,Zinc compounds ,Analytical chemistry ,Evaporation ,02 engineering and technology ,low linear velocity range ,010402 general chemistry ,SeH sub 2 g data ,01 natural sciences ,evaporation ,thermodynamical equilibria ,vapour phase transport ,solid vapour transformations ,open tube ,Fick's diffusion law ,Open tube ,ZnSe evaporation ,H flow ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,semiconductor growth ,II VI semiconductors ,[PHYS.HIST]Physics [physics]/Physics archives ,Ar flow ,0210 nano-technology ,zinc compounds - Abstract
Nous nous sommes interesses au phenomene d'evaporation d'un solide sous flux gazeux dans les domaines de simple diffusion et de diffusion-convection. Le transport en phase vapeur du seleniure de zinc, sous flux d'argon ou d'hydrogene, a ete ainsi decrit et l'on montre que, dans le domaine de vitesse etudie, le regime d'equilibre thermodynamique, associe a la loi de Fick suffit a rendre compte des resultats experimentaux.
- Published
- 1974
117. The Battle of New Orleans for the Piano Forte
- Author
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D. Etienne and D. Etienne
- Abstract
This sheet music cover was drawn and engraved by M. Butler. The composer's autograph appears in the lower right hand corner. The piece was composed by D. Etienne and dedicated to the American Nation., One of many songs, poems, and visual depictions resulting from the outcome of the Battle of New Orleans on January 8, 1815.
118. �ber den S�uregehalt von Whisky und dessen Ver�nderung
- Author
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S. T. Schicktanz and A. D. Etienne
- Subjects
Engineering ,business.industry ,Library science ,Analytical Chemistry (journal) ,business ,Biochemistry ,Analytical Chemistry - Published
- 1939
119. Determination of Alcohol in Wine and the Effect of Temperature on the Determination
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A D Etienne
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Wine ,chemistry.chemical_compound ,Chemistry ,Alcohol ,Food science - Published
- 1952
120. Short-course intensification with enfuvirtide in virologic failure: impact on intracellular HIV reservoir and on viral tropism (INNOVE study)
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C Delaugerre, Jade Ghosn, D Etienne, A Pinta, N Pierre, L Morand-Joubert, and François Raffi
- Subjects
Enfuvirtide ,business.industry ,Human immunodeficiency virus (HIV) ,Public Health, Environmental and Occupational Health ,medicine.disease_cause ,medicine.disease ,Virology ,VIROLOGIC FAILURE ,Pharmacotherapy ,Infectious Diseases ,Acquired immunodeficiency syndrome (AIDS) ,Poster Presentation ,Tissue tropism ,Medicine ,Short course ,business ,Tropism ,medicine.drug - Abstract
Overall, studies of ART intensification in suppressed patients showed no reduction in HIV reservoir, as assessed by proviral DNA. Limited data about impact of ART intensification are available for failing patients harbouring multidrug resistant viruses. We studied the effects of intensification with enfuvirtide (ENF) on intracellular HIV reservoir and tropism evolution under treatment selective pressure in this clinical setting. Supplement: Abstracts of the Tenth International Congress on Drug Therapy in HIV Infection http://www.biomedcentral.com/content/pdf/1758-2652-13-S4-info.pdf Conference: Tenth International Congress on Drug Therapy in HIV Infection 7-11 November 2010 Glasgow, UK (Published: 8 November 2010) doi:10.1186/1758-2652-13-S4-P40 Cite this article as: Ghosn et al.: Short-course intensification with enfuvirtide in virologic failure: impact on intracellular HIV reservoir and on viral tropism (INNOVE study). Journal of the International AIDS Society 2010 13(Suppl 4):P40. Full text: PubMed Central: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3113043/
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121. Development of Promising Interventions to Improve Human Papillomavirus Vaccination in a School-Based Program in Quebec, Canada: Results From a Formative Evaluation Using a Mixed Methods Design.
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Dionne M, Sauvageau C, Etienne D, Kiely M, Witteman H, and Dubé E
- Abstract
Background: Despite the availability of school-based human papillomavirus (HPV) vaccination programs, disparities in vaccine coverage persist. Barriers to HPV vaccine acceptance and uptake include parental attitudes, knowledge, beliefs, and system-level barriers. A total of 3 interventions were developed to address these barriers: an in-person presentation by school nurses, an email reminder with a web-based information and decision aid tool, and a telephone reminder using motivational interviewing (MI) techniques., Objective: Here we report on the development and formative evaluation of interventions to improve HPV vaccine acceptance and uptake among grade 4 students' parents in Quebec, Canada., Methods: In the summer of 2019, we conducted a formative evaluation of the interventions to assess the interventions' relevance, content, and format and to identify any unmet needs. We conducted 3 focus group discussions with parents of grade 3 students and nurses. Interviews were recorded, transcribed, and analyzed for thematic content using NVivo software (Lumivero). Nurses received training on MI techniques and we evaluated the effect on nurses' knowledge and skills using a pre-post questionnaire. Descriptive quantitative analyses were carried out on data from questionnaires relating to the training. Comparisons were made using the proportions of the results. Finally, we developed a patient decision aid using an iterative, user-centered design process. The iterative refinement process involved feedback from parents, nurses, and experts to ensure the tool's relevance and effectiveness. The evaluation protocol and data collection tools were approved by the CHU (Centre Hospitalier Universitaire) de Québec Research Ethics Committee (MP-20-2019-4655, May 16, 2019)., Results: The data collection was conducted from April 2019 to March 2021. Following feedback (n=28) from the 3 focus group discussions in June 2019, several changes were made to the in-person presentation intervention. Experts (n=27) and school nurses (n=29) recruited for the project appreciated the visual and simplified information on vaccination in it. The results of the MI training for school nurses conducted in August 2019 demonstrated an increase in the skills and knowledge of nurses (n=29). School nurses who took the web-based course (n=24) filled out a pretest and posttest questionnaire to evaluate their learning. The rating increased by 19% between the pretest and posttest questionnaires. Several changes were made between the first draft of the web-based decision-aid tool and the final version during the summer of 2019 after an expert consultation of experts (n=3), focus group participants (n=28), and parents in the iterative process (n=5). More information about HPV and vaccines was added, and users could click if more detail is desired., Conclusions: We developed and pilot-tested 3 interventions using an iterative process. The interventions were perceived as potentially effective to increase parents' knowledge and positive attitudes toward HPV vaccination, and ultimately, vaccine acceptance. Future research will assess the effectiveness of these interventions on a larger scale., (©Maude Dionne, Chantal Sauvageau, Doriane Etienne, Marilou Kiely, Holly Witteman, Eve Dubé. Originally published in JMIR Formative Research (https://formative.jmir.org), 08.07.2024.)
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- 2024
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122. Gastroduodenal Involvement in AL Amyloidosis: Case Report and Literature Review.
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Ramachandran R, Grantham T, Isaac-Coss G, Etienne D, and Reddy M
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- Humans, Abdominal Pain, Biopsy, Gastrointestinal Hemorrhage etiology, Weight Loss, Amyloidosis complications, Amyloidosis diagnosis, Amyloidosis pathology, Immunoglobulin Light-chain Amyloidosis complications, Immunoglobulin Light-chain Amyloidosis diagnosis
- Abstract
Gastrointestinal amyloidosis is a rare condition commonly found in the setting of systemic AL amyloidosis. Amyloid can deposit throughout the gastrointestinal tract and the resulting symptoms vary depending on the site of deposition. Gastrointestinal (GI) manifestations can range from weight loss or abdominal pain, to more serious complications like gastrointestinal bleeding, malabsorption, dysmotility, and obstruction. This case describes a patient with known history of IgG lambda AL amyloidosis, presenting with epigastric pain and unintentional weight loss found to have gastroduodenal amyloidosis. The definitive diagnosis of GI amyloidosis requires endoscopic biopsy with Congo red staining and visualization under polarized light microscopy. There are currently no specific guidelines for the management of GI amyloidosis. Generally, the goal is to treat the underlying cause of the amyloidosis along with symptom management. Our patient is being treated with cyclophosphamide, bortezomib, and dexamethasone (CyBorD) and started on hemodialysis due to progression of renal disease., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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123. A Personalized Avatar-Based Web Application to Help People Understand How Social Distancing Can Reduce the Spread of COVID-19: Cross-sectional, Observational, Pre-Post Study.
- Author
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Etienne D, Archambault P, Aziaka D, Chipenda-Dansokho S, Dubé E, Fallon CS, Hakim H, Kindrachuk J, Krecoum D, MacDonald SE, Ndjaboue R, Noubi M, Paquette JS, Parent E, and Witteman HO
- Abstract
Background: To reduce the transmission of SARS-CoV-2 and the associated spread of COVID-19, many jurisdictions around the world imposed mandatory or recommended social or physical distancing. As a result, at the beginning of the pandemic, various communication materials appeared online to promote distancing. Explanations of the science underlying these mandates or recommendations were either highly technical or highly simplified., Objective: This study aimed to understand the effects of a dynamic visualization on distancing. Our overall aim was to help people understand the dynamics of the spread of COVID-19 in their community and the implications of their own behavior for themselves, those around them, the health care system, and society., Methods: Using Scrum, which is an agile framework; JavaScript (Vue.js framework); and code already developed for risk communication in another context of infectious disease transmission, we rapidly developed a new personalized web application. In our application, people make avatars that represent themselves and the people around them. These avatars are integrated into a 3-minute animation illustrating an epidemiological model for COVID-19 transmission, showing the differences in transmission with and without distancing. During the animation, the narration explains the science of how distancing reduces the transmission of COVID-19 in plain language in English or French. The application offers full captions to complement the narration and a descriptive transcript for people using screen readers. We used Google Analytics to collect standard usage statistics. A brief, anonymous, optional survey also collected self-reported distancing behaviors and intentions in the previous and coming weeks, respectively. We launched and disseminated the application on Twitter and Facebook on April 8, 2020, and April 9, 2020., Results: After 26 days, the application received 3588 unique hits from 82 countries. The optional survey at the end of the application collected 182 responses. Among this small subsample of users, survey respondents were nearly (170/177, 96%) already practicing distancing and indicated that they intended to practice distancing in the coming week (172/177, 97.2%). Among the small minority of people (n=7) who indicated that they had not been previously practicing distancing, 2 (29%) reported that they would practice distancing in the week to come., Conclusions: We developed a web application to help people understand the relationship between individual-level behavior and population-level effects in the context of an infectious disease spread. This study also demonstrates how agile development can be used to quickly create personalized risk messages for public health issues like a pandemic. The nonrandomized design of this rapid study prevents us from concluding the application's effectiveness; however, results thus far suggest that avatar-based visualizations may help people understand their role in infectious disease transmission., (©Doriane Etienne, Patrick Archambault, Donovan Aziaka, Selma Chipenda-Dansokho, Eve Dubé, Catherine S Fallon, Hina Hakim, Jason Kindrachuk, Dan Krecoum, Shannon E MacDonald, Ruth Ndjaboue, Magniol Noubi, Jean-Sébastien Paquette, Elizabeth Parent, Holly O Witteman. Originally published in JMIR Formative Research (https://formative.jmir.org), 25.04.2023.)
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- 2023
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124. Outcomes of Portal Vein Thrombosis in Smokers With and Without Cirrhosis and Predictors of Mortality: A Nationwide Assessment.
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Kumar V, Gala D, Shah M, Kumar N, Gayam VR, Bandaru P, Forlemu AN, Etienne D, and Gadaputi V
- Abstract
Portal vein thrombosis (PVT) is a rare condition that can lead to numerous complications, like variceal bleeding, hepatic encephalopathy, and chronic liver disease. PVT has various etiologies, including liver disease, infections, and hyper-coagulable disorders. Cirrhosis, a chronic progressive liver condition characterized by liver fibrosis, is one of the risk factors for the development of PVT. Secondly, smoking also increases the risk of PVT. The aim of this study is to identify outcomes in patients with PVT who smoked with and without cirrhosis. This study was performed using the National Inpatient Sample (NIS) database for the years 2016, 2017, and 2018. The study identified 33,314 patients diagnosed with PVT who smoked, of which 14,991 had cirrhosis, and 18,323 did not have cirrhosis. Patients with PVT and cirrhosis had significantly higher in-hospital mortality, upper gastrointestinal bleeds, acute kidney injury, and peritonitis compared to patients without cirrhosis. The results of the study show that patients with PVT and cirrhosis who smoke have a higher risk of unfavorable outcomes., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Kumar et al.)
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- 2023
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125. Hepatic Dystrophic Calcification Secondary to Transarterial Chemoembolization: Case Report and Review of Literature.
- Author
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Kumar V, Shah M, Gala D, Singh MK, Jeanty H, Thomas R, Forlemu AN, Gayam VR, and Etienne D
- Abstract
Hepatocellular carcinoma (HCC) is a common malignancy usually treated with surgery. Patients who are not suitable for surgery undergo transarterial chemoembolization (TACE) which involves injecting anti-cancer drugs and embolizing agents into the hepatic artery. Although it is a relatively safe procedure with minor side effects, TACE can rarely cause dystrophic calcification in the liver. We report a case of a 58-year-old female who presented with right-sided chest pain. The patient had been previously treated for HCC with a TACE procedure. A chest x-ray revealed hepatic calcification which was likely secondary to the prior TACE. This case study emphasizes the significance of considering TACE as a potential cause of hepatic dystrophic calcification., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Kumar et al.)
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- 2023
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126. Conservative Management of Duodenal Penetration by Inferior Vena Cava Filter: Case Report and Review.
- Author
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Ramachandran R, Kumar V, Grantham T, Etienne D, and Reddy M
- Subjects
- Humans, Conservative Treatment, Device Removal, Vena Cava, Inferior surgery, Duodenum surgery, Vena Cava Filters adverse effects
- Abstract
Duodenal penetration is a late complication associated with the placement of inferior vena cava (IVC) filters. In this case report, we are presenting a case of asymptomatic duodenal penetration by IVC filter that was managed conservatively.
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- 2023
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127. Prevalence and Impact of Acute Pancreatitis on Hospitalization Outcomes in a Cohort of Patients With Crohn's Disease.
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Abomhya A, Clemetson E, Khan F, Tageldin O, Abdulsada Z, Hamad H, Gayam V, and Etienne D
- Abstract
Background: Few studies evaluated the risk of acute pancreatitis (AP) in patients with Crohn's disease (CD). It's controversial if AP can be considered as an extraintestinal manifestation of CD. We studied this potential association in a retrospective cohort of patients with CD., Methods: We draw our cohort from the Nationwide Readmission Databases 2016 - 2018. We used the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes to identify all adult patients admitted with a diagnosis of CD. Patient with a comorbid AP were identified. We analyzed the significant impact of AP on hospitalization outcomes. A multivariate regression analysis was used to identify factors associated with AP., Results: We included 214,622 patients discharged from an index hospitalization for CD, 1.1% had AP. AP was independently associated with higher odds of inpatient mortality (odds ratio (OR): 1.831; 95% confidence interval (CI): 1.345 - 2.492, P < 0.001), gallstone disease (OR: 4.047; 95% CI: 3.343 - 4.9, P < 0.001), nonalcoholic fatty liver disease (NAFLD) (OR: 3.568; 95% CI: 3.08 - 4.133, P < 0.001), and hypercalcemia (OR: 1.964; 95% CI: 1.302 - 2.965, P = 0.001). Thirty-day readmission analysis showed that CD patients with AP were more commonly to be readmitted for AP than for any other reason., Conclusions: In our nationwide cohort of CD patients, there was a significant association between AP and worse hospitalization outcomes. Additionally, we found independent associations for having AP that may help identify patients at high risk., Competing Interests: Authors had no conflict of interest to be declared., (Copyright 2022, Abomhya et al.)
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- 2022
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128. Fibropapillomatosis Prevalence and Distribution in Immature Green Turtles (Chelonia mydas) in Martinique Island (Lesser Antilles).
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Roost T, Schies JA, Girondot M, Robin JP, Lelong P, Martin J, Siegwalt F, Jeantet L, Giraudeau M, Le Loch G, Bejarano M, Bonola M, Benhalilou A, Murgale C, Andreani L, Jacaria F, Campistron G, Lathière A, Martial F, Hielard G, Arqué A, Régis S, Lecerf N, Frouin C, Lefebvre F, Aubert N, Flora F, Pimentel E, Lafolle R, Thobor F, Arthus M, Etienne D, Lecerf N, Allenou JP, Desigaux F, Larcher E, Larcher C, Curto AL, Befort J, Maceno-Panevel M, Lepori M, Chevallier P, Chevallier T, Meslier S, Landreau A, Habold C, Le Maho Y, and Chevallier D
- Subjects
- Animals, Martinique epidemiology, Prevalence, Turtles
- Abstract
Fibropapillomatosis (FP) threatens the survival of green turtle (Chelonia mydas) populations at a global scale, and human activities are regularly pointed as causes of high FP prevalence. However, the association of ecological factors with the disease's severity in complex coastal systems has not been well established and requires further studies. Based on a set of 405 individuals caught over ten years, this preliminary study provides the first insight of FP in Martinique Island, which is a critical development area for immature green turtles. Our main results are: (i) 12.8% of the individuals were affected by FP, (ii) FP has different prevalence and temporal evolution between very close sites, (iii) green turtles are more frequently affected on the upper body part such as eyes (41.4%), fore flippers (21.9%), and the neck (9.4%), and (iv) high densities of individuals are observed on restricted areas. We hypothesise that turtle's aggregation enhances horizontal transmission of the disease. FP could represent a risk for immature green turtles' survival in the French West Indies, a critical development area, which replenishes the entire Atlantic population. Continuing scientific monitoring is required to identify which factors are implicated in this panzootic disease and ensure the conservation of the green turtle at an international scale., (© 2022. EcoHealth Alliance.)
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- 2022
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129. Silica Desiccant Canister: An Unusual Colonic Foreign Body.
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Ramachandran R, Kumar V, Isaac-Coss G, and Etienne D
- Abstract
We are reporting a case of incidental identification and removal of two silica desiccant canisters from the cecum in a patient undergoing screening colonoscopy., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2022 Rajarajeshwari Ramachandran et al.)
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- 2022
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130. Paleoreconstructions of ciliate communities reveal long-term ecological changes in temperate lakes.
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Barouillet C, Vasselon V, Keck F, Millet L, Etienne D, Galop D, Rius D, and Domaizon I
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- Ecosystem, Food Chain, Humans, Plankton, Ciliophora, Lakes
- Abstract
Ciliates are unicellular heterotrophic organisms that play a key role in aquatic planktonic and benthic food webs. Advances in sedimentary DNA (sed-DNA) analysis offer the possibility to integrate these bioindicators in paleoenvironmental reconstructions. In this study, we used the top-bottom paleolimnological approach and metabarcoding techniques applied to sed-DNA to compare the recent and past (i.e. prior to major anthropogenic impacts) ciliate communities of 48 lakes located along an elevation gradient. Our results show an overall decline in the β-diversity in recent time, especially in lowland lakes, which are more strongly exposed to local human pressures. Analyses of the functional groups indicate important restructuration of the food web, including the recent increase in mixotrophs. Moreover, changes in the benthic ciliates were consistent with the widespread increase in deep water anoxia. Our results provided evidence that sed-DNA can uncover information about past ciliate communities on a wide variety of lakes. Overall, our study demonstrates the potential of using ciliates as new paleoindicators, integrating information from the pelagic to the benthic zones, and providing valuable insights into ecosystem functioning through a trait-based functional community approach. As paleoindicator, they thus offer a more holistic view on the long-term changes of aquatic ecosystems., (© 2022. The Author(s).)
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- 2022
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131. Spatial distribution of sediment archaeal and bacterial communities relates to the source of organic matter and hypoxia - a biogeographical study on Lake Remoray (France).
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Tardy V, Etienne D, Masclaux H, Essert V, Millet L, Verneaux V, and Lyautey E
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- China, Geologic Sediments, Humans, Hypoxia, Lakes, Archaea genetics, Cyanobacteria
- Abstract
Bottom waters hypoxia spreads in many lakes worldwide causing severe consequences on whole lakes trophic network. Here, we aimed at understanding the origin of organic matter stored in the sediment compartment and the related diversity of sediment microbial communities in a lake with deoxygenated deep water layers. We used a geostatistical approach to map and compare both the variation of organic matter and microbial communities in sediment. Spatialisation of C/N ratio and δ13C signature of sediment organic matter suggested that Lake Remoray was characterized by an algal overproduction which could be related to an excess of nutrient due to the close lake-watershed connectivity. Three spatial patterns were observed for sediment microbial communities after the hypoxic event, each characterized by specific genetic structure, microbial diversity and composition. The relative abundance variation of dominant microbial groups across Lake Remoray such as Cyanobacteria, Gammaproteobacteria, Deltaproteobacteria and Chloroflexi provided us important information on the lake areas where hypoxia occurs. The presence of methanogenic species in the deeper part of the lake suggests important methane production during hypoxia period. Taken together, our results provide an extensive picture of microbial communities' distribution related to quantity and quality of organic matter in a seasonally hypoxic lake., (© The Author(s) 2021. Published by Oxford University Press on behalf of FEMS. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2021
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132. Gender and racial disparities in colorectal cancer incidence and mortality: a national cancer registry study.
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Ramai D, Barakat M, Dhaliwal A, Dhindsa B, Chandan S, Ofosu A, Facciorusso A, Etienne D, and Reddy M
- Subjects
- Cross-Sectional Studies, Female, Humans, Incidence, Male, Registries, Retrospective Studies, SEER Program, United States epidemiology, Colorectal Neoplasms epidemiology
- Abstract
Introduction: The incidence of CRC is higher in minority racial and ethnic groups. However, studies assessing trends among sex and racial groups on the incidence and mortality of CRC are lacking. We aim to investigate disparities in CRC by reviewing a large national cancer registry., Methods: This is a retrospective cross-sectional study of the Surveillance, Epidemiology, and End Results Registry (SEER) of individuals aged 45-79 years from 2000-2017., Results: During the study period, the incidence of CRC decreased for both males and females, respectively (APC -2.14 vs -1.81). Among all racial groups, African American showed the least decline in incidence of CRC. African American females showed the highest risk for CRC (IRR 1.34; 95% CI 1.32-1.36, p< 0.001) compared to other females or males from different racial groups. Subgroup analysis using Kaplan-Meier estimations showed that African American females had the poorest 5-year survival rate (56%) compared to other female racial groups. Among males, American Indian/Alaska Natives had the poorest 5-year survival (54%) compared to male of other racial groups., Conclusion: Overall, the incidence of colorectal cancer is declining. However, the incidence of CRC remains highest in African Americans females who are also burden with poor survival rates., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.)
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- 2021
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133. Endoscopic Ultrasound Detection of Type B Aortic Dissection.
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Kolli S, Bachali K, Ramai D, Shahnazarian V, Etienne D, Reddy M, and Gurram KC
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- 2021
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134. Gerald Klatskin (1910-1986): A pioneer in hepato-biliary disorders and biopsy techniques.
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Ramai D, Zakhia K, Etienne D, Asarian A, and Reddy M
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- Bile Duct Neoplasms diagnosis, Bile Duct Neoplasms pathology, Biopsy methods, Connecticut, History, 20th Century, Humans, Klatskin Tumor diagnosis, Klatskin Tumor pathology, Bile Duct Neoplasms history, Biopsy history, Klatskin Tumor history, Liver pathology, Physicians history
- Abstract
The widespread use of liver biopsies underscores its utility and significance within the field of medicine. Dr. Gerald Klatskin's pioneering work on liver biopsy techniques, as well as his study of liver histopathology, paved the way for its diagnostic and therapeutic applications around the world. His attention to detail as well as meticulous account of hilar cholangiocarcinoma has had a lasting impact on the medical community. Eponymously, the tumor was named after him-Klatskin's tumor. Klatskin was also well known and respected for his commitment and devotion to his fellows who themselves went on to hold prestigious academic positions and make significant contributions of their own. The life and work of Klatskin documents a pioneering hepatologist and devoted teacher.
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- 2020
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135. Assessing the response of micro-eukaryotic diversity to the Great Acceleration using lake sedimentary DNA.
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Keck F, Millet L, Debroas D, Etienne D, Galop D, Rius D, and Domaizon I
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- Alveolata classification, Alveolata genetics, Alveolata isolation & purification, Biodiversity, Biological Evolution, Ecosystem, Eukaryota classification, Eukaryota isolation & purification, History, 19th Century, History, 20th Century, History, 21st Century, Human Activities history, Humans, Microalgae classification, Microalgae genetics, Microalgae isolation & purification, Microbiota genetics, Phototrophic Processes physiology, Rhizaria classification, Rhizaria genetics, Rhizaria isolation & purification, Stramenopiles classification, Stramenopiles genetics, Stramenopiles isolation & purification, DNA genetics, Eukaryota genetics, Geologic Sediments analysis, Lakes analysis
- Abstract
Long-term time series have provided evidence that anthropogenic pressures can threaten lakes. Yet it remains unclear how and the extent to which lake biodiversity has changed during the Anthropocene, in particular for microbes. Here, we used DNA preserved in sediments to compare modern micro-eukaryotic communities with those from the end of the 19th century, i.e., before acceleration of the human imprint on ecosystems. Our results obtained for 48 lakes indicate drastic changes in the composition of microbial communities, coupled with a homogenization of their diversity between lakes. Remote high elevation lakes were globally less impacted than lowland lakes affected by local human activity. All functional groups (micro-algae, parasites, saprotrophs and consumers) underwent significant changes in diversity. However, we show that the effects of anthropogenic changes have benefited in particular phototrophic and mixotrophic species, which is consistent with the hypothesis of a global increase of primary productivity in lakes.
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- 2020
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136. Microcarcinoid and Ulcerative Colitis: Case Report and Literature Review.
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Etienne D, Ofosu A, Ona MA, and Reddy M
- Abstract
Gastrointestinal microcarcinoid tumors are rare, and the concomitant diagnosis of microcarcinoid tumor and inflammatory bowel disease is even rarer. A 54-year-old African American male with an eight-year history of ulcerative colitis (UC) presented with a three-day history of abdominal pain and bloody diarrhea. Rectal biopsy on colonoscopy was notable for small nests of neuroendocrine cell proliferation in the mucosa consistent with a diagnosis of microcarcinoid tumor. Whether the incidence is coincidental or represents an epiphenomenon of chronic inflammation remains to be determined., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2020, Etienne et al.)
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- 2020
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137. Behavioural inference from signal processing using animal-borne multi-sensor loggers: a novel solution to extend the knowledge of sea turtle ecology.
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Jeantet L, Planas-Bielsa V, Benhamou S, Geiger S, Martin J, Siegwalt F, Lelong P, Gresser J, Etienne D, Hiélard G, Arque A, Regis S, Lecerf N, Frouin C, Benhalilou A, Murgale C, Maillet T, Andreani L, Campistron G, Delvaux H, Guyon C, Richard S, Lefebvre F, Aubert N, Habold C, le Maho Y, and Chevallier D
- Abstract
The identification of sea turtle behaviours is a prerequisite to predicting the activities and time-budget of these animals in their natural habitat over the long term. However, this is hampered by a lack of reliable methods that enable the detection and monitoring of certain key behaviours such as feeding. This study proposes a combined approach that automatically identifies the different behaviours of free-ranging sea turtles through the use of animal-borne multi-sensor recorders (accelerometer, gyroscope and time-depth recorder), validated by animal-borne video-recorder data. We show here that the combination of supervised learning algorithms and multi-signal analysis tools can provide accurate inferences of the behaviours expressed, including feeding and scratching behaviours that are of crucial ecological interest for sea turtles. Our procedure uses multi-sensor miniaturized loggers that can be deployed on free-ranging animals with minimal disturbance. It provides an easily adaptable and replicable approach for the long-term automatic identification of the different activities and determination of time-budgets in sea turtles. This approach should also be applicable to a broad range of other species and could significantly contribute to the conservation of endangered species by providing detailed knowledge of key animal activities such as feeding, travelling and resting., Competing Interests: We declare we have no competing interests., (© 2020 The Authors.)
- Published
- 2020
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138. Minor Papillary Relief in a Type IA Choledochal Cyst: A Case Report and Review of the Literature.
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Kolli S, Weissman S, Ofori E, Dang-Ho KP, Bandaru P, Bachali K, Tsipotis E, Etienne D, Reddy M, Jelin A, and Gurram K
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Choledochal cysts are an anatomical conundrum as they present with nonspecific symptoms generally delaying diagnosis and treatment. Its lag time remains critical, as cholangiocarcinoma, a fatal sequelae, contributes to its morbidity and mortality. Herein, we present a case of a type 1A choledochal cyst. We hope that its review on presentation, classification system, diagnosis, and management prevent complications and cataclysmic results., Competing Interests: The authors declare no conflict of interest. The authors declare that they have no competing interests., (Copyright © 2020 by S. Karger AG, Basel.)
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- 2020
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139. Fine scale geographic residence and annual primary production drive body condition of wild immature green turtles ( Chelonia mydas ) in Martinique Island (Lesser Antilles).
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Bonola M, Girondot M, Robin JP, Martin J, Siegwalt F, Jeantet L, Lelong P, Grand C, Chambault P, Etienne D, Gresser J, Hielard G, Arqué A, Régis S, Lecerf N, Frouin C, Lefebvre F, Sutter E, Vedie F, Barnerias C, Thieulle L, Bordes R, Guimera C, Aubert N, Bouaziz M, Pinson A, Flora F, Duru M, Benhalilou A, Murgale C, Maillet T, Andreani L, Campistron G, Sikora M, Rateau F, George F, Eggenspieler J, Woignier T, Allenou JP, Louis-Jean L, Chanteur B, Béranger C, Crillon J, Brador A, Habold C, Le Maho Y, and Chevallier D
- Abstract
The change of animal biometrics (body mass and body size) can reveal important information about their living environment as well as determine the survival potential and reproductive success of individuals and thus the persistence of populations. However, weighing individuals like marine turtles in the field presents important logistical difficulties. In this context, estimating body mass (BM) based on body size is a crucial issue. Furthermore, the determinants of the variability of the parameters for this relationship can provide information about the quality of the environment and the manner in which individuals exploit the available resources. This is of particular importance in young individuals where growth quality might be a determinant of adult fitness. Our study aimed to validate the use of different body measurements to estimate BM, which can be difficult to obtain in the field, and explore the determinants of the relationship between BM and size in juvenile green turtles. Juvenile green turtles were caught, measured, and weighed over 6 years (2011-2012; 2015-2018) at six bays to the west of Martinique Island (Lesser Antilles). Using different datasets from this global database, we were able to show that the BM of individuals can be predicted from body measurements with an error of less than 2%. We built several datasets including different morphological and time-location information to test the accuracy of the mass prediction. We show a yearly and north-south pattern for the relationship between BM and body measurements. The year effect for the relationship of BM and size is strongly correlated with net primary production but not with sea surface temperature or cyclonic events. We also found that if the bay locations and year effects were removed from the analysis, the mass prediction degraded slightly but was still less than 3% on average. Further investigations of the feeding habitats in Martinique turtles are still needed to better understand these effects and to link them with geographic and oceanographic conditions., Competing Interests: Competing interestsThe authors declare no competing or financial interests., (© 2019. Published by The Company of Biologists Ltd.)
- Published
- 2019
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140. WITHDRAWN: Giant gastric lipoma presenting as partial gastric outlet obstruction.
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Ona MA, Ofori E, Ramai D, Etienne D, and Reddy M
- Abstract
This article has been withdrawn at the request of the editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal., (Copyright © 2019 Pan-Arab Association of Gastroenterology. Published by Elsevier B.V. All rights reserved.)
- Published
- 2019
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141. Individual and Geospatial Characteristics Associated With Use and Nonuse of the Fecal Immunochemical Test (FIT) for Colorectal Cancer Screening in an Urban Minority Population.
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Ramai D, Etienne D, Ayide G, Fields PJ, and Reddy M
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- Aged, Colorectal Neoplasms ethnology, Demography, Early Detection of Cancer, Ethnicity, Female, Humans, Male, Mass Screening, Middle Aged, New York City epidemiology, Occult Blood, Retrospective Studies, Socioeconomic Factors, Urban Population, Colorectal Neoplasms diagnosis, Patient Acceptance of Health Care
- Abstract
Purpose: Initiatives by the Centers for Disease Control and Prevention as well as the National Colorectal Cancer Roundtable aim to increase the rate of colorectal cancer (CRC) screening. We assess individual and geographic characteristics associated fecal immunochemical test (FIT) CRC screening over 3 years., Methods: This is a retrospective study of 1500 FIT kits which were mailed or opportunistically handed to eligible participants in Brooklyn, New York from January 2014 to December 2016. Eligibility criteria included increased risk for colon cancer, uninsured or underinsured, and a minimum age of 50 years to warrant CRC screening. We looked at the association of individual demographic characteristics and FIT screening by logistic regression using SPPS version 23 software. In addition, using ArcGIS, we coded patients address and layered census tract population information to find associations., Results: In total, 1367 Cancer Services Participants met our study criteria. The study sample was predominantly female (95.2%) and minority (46% African American, 24.7% Hispanic, 17.3% Caucasian, 11.4% Asian) and on average 59 years old (SD, 5.7). A large majority (73%) had household incomes below $20,000/year. Approximately half (49.9%) of all Cancer Services Participants returned their FIT kit. In participants who did not return their FIT kit, the majority were African American (41%), followed by Hispanics (26.5%), Caucasians (20.6%), and Asians (11.8%). Multivariable logistic regression showed that a screening history of prior colonoscopy or FIT, gender, ethnicity, and educational attainment were significantly associated with FIT CRC screening uptake (P<0.05). Geospatial mapping showed clusters of low screening uptake in areas of high poverty. Hot-spot analysis identified areas of significant vulnerability., Conclusions: FIT uptake remains suboptimal. Individual predictors as well as area poverty is associated with low screening uptake. Geospatial mapping is an effective tool for evaluating CRC screening uptake.
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- 2019
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142. Assessing urban minority attitudes for colorectal cancer screening using financial incentives.
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Ramai D, Shahnazarian V, Etienne D, Ayide G, and Reddy M
- Subjects
- Female, Humans, Male, New York, Prospective Studies, Urban Population, Attitude to Health, Colorectal Neoplasms diagnosis, Early Detection of Cancer, Minority Groups psychology, Motivation, Self Report economics
- Published
- 2019
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143. Flavonoid composition, cellular antioxidant activity and (myelo)peroxidase inhibition of a Bryonia alba L. (Cucurbitaceae) leaves extract.
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Ielciu I, Mouithys-Mickalad A, Franck T, Angenot L, Ledoux A, Păltinean R, Cieckiewicz E, Etienne D, Tits M, Crişan G, and Frédérich M
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- Animals, Antioxidants chemistry, Antioxidants isolation & purification, Chromatography, High Pressure Liquid methods, Enzyme Inhibitors chemistry, Enzyme Inhibitors isolation & purification, Enzyme Inhibitors pharmacology, Flavonoids chemistry, Flavonoids isolation & purification, HL-60 Cells, Horses, Humans, Macrophages drug effects, Monocytes cytology, Peroxidase antagonists & inhibitors, Plant Extracts chemistry, Plant Leaves, Reactive Oxygen Species metabolism, Zebrafish, Antioxidants pharmacology, Bryonia chemistry, Flavonoids pharmacology, Plant Extracts pharmacology
- Abstract
Objectives: The aim of the present study consisted in the isolation of flavonoids from the leaves of Bryonia alba L. and evaluation of their antioxidant activity and inhibition on peroxidase-catalysed reactions., Methods: Flavonoids were isolated by preparative HPLC-DAD and their structures were elucidated by MS and NMR. Inhibitory effect was tested by the horseradish peroxidase and the myeloperoxidase assays. Cellular antioxidant assays consisted in testing the inhibitory activity on the reactive oxygen species released upon activation of neutrophils freshly isolated ex vivo from equine blood and of human monocytes-derived macrophages in vitro. Whole organism toxicity was assessed on zebrafish larvae., Key Findings: Four flavonoids (lutonarin, saponarin, isoorientin and isovitexin) were isolated. The performed assays showed significant antioxidant activity and inhibition for the peroxidase-catalysed reactions. Absence of cellular and zebrafish toxicity was confirmed., Conclusions: Bryonia alba L. leaves are particularly interesting for their flavonoids content and showed significant inhibitory effect on peroxidase-catalysed oxidation of substrates (Amplex Red and L012), as well as antioxidant/antiradical activity, proving that this species has a medicinal potential. Moreover, the present study highlights the absence of the toxicity of these leaves and offers though a novel perspective on the species, previously known as being toxic., (© 2018 Royal Pharmaceutical Society.)
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- 2019
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144. Connecting paths between juvenile and adult habitats in the Atlantic green turtle using genetics and satellite tracking.
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Chambault P, de Thoisy B, Huguin M, Martin J, Bonola M, Etienne D, Gresser J, Hiélard G, Mailles J, Védie F, Barnerias C, Sutter E, Guillemot B, Dumont-Dayot É, Régis S, Lecerf N, Lefebvre F, Frouin C, Aubert N, Guimera C, Bordes R, Thieulle L, Duru M, Bouaziz M, Pinson A, Flora F, Queneherve P, Woignier T, Allenou JP, Cimiterra N, Benhalilou A, Murgale C, Maillet T, Rangon L, Chanteux N, Chanteur B, Béranger C, Le Maho Y, Petit O, and Chevallier D
- Abstract
Although it is commonly assumed that female sea turtles always return to the beach they hatched, the pathways they use during the years preceding their first reproduction and their natal origins are most often unknown, as it is the case for juvenile green turtles found in Martinique waters in the Caribbean. Given the oceanic circulation of the Guiana current flowing toward Martinique and the presence of important nesting sites for this species in Suriname and French Guiana, we may assume that a large proportion of the juvenile green turtles found in Martinique are originating from the Suriname-French Guiana beaches. To confirm this hypothesis, we performed mixed stock analysis (MSA) on 40 green turtles sampled in Martinique Island and satellite tracked 31 juvenile green turtles tagged in Martinique to (a) assess their natal origin and (b) identify their destination. Our results from MSA confirm that these juveniles are descendant from females laying on several Caribbean and Atlantic beaches, mostly from Suriname and French Guiana, but also from more southern Brazilian beaches. These results were confirmed by the tracking data as the 10 turtles leaving Martinique headed across the Caribbean-Atlantic region in six different directions and 50% of these turtles reached the Brazilian foraging grounds used by the adult green turtles coming from French Guiana. One turtle left the French Guianan coast to perform the first transatlantic migration ever recorded in juvenile green turtles, swimming toward Guinea-Bissau, which is the most important nesting site for green turtles along the African coast. The extensive movements of the migrant turtles evidenced the crossing of international waters and more than 25 exclusive economic zones, reinforcing the need for an international cooperative network to ensure the conservation of future breeders in this endangered species.
- Published
- 2018
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145. Crohn's Disease Manifesting as a Duodenal Obstruction: An Unusual Case.
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Shah J, Etienne D, Reddy M, Kothadia JP, Shahidullah A, and Baqui AAMA
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We describe a case of a 31-year-old man who presented with a 3-year history of worsening upper abdominal pain, nausea, and vomiting: symptoms that were resistant to medical treatment and unexplained despite a thorough diagnostic evaluation. Then, an upper gastrointestinal series with small bowel follow-through showed proximal duodenal dilation and distal decompression of the duodenum, suggestive of a partial duodenal obstruction. An abdominal computed tomography (CT) scan revealed a transition point in the distal duodenum. At surgery, a segmental resection of the distal duodenum with a duodenojejunal anastomosis was performed. Histopathologic examination of the specimen revealed Crohn's disease. Therefore, making the diagnosis of duodenal obstruction has significant clinical implications and, in the setting of Crohn's disease, is evidence of an underlying intestinal stricture, stenotic area, or adhesion., Competing Interests: The authors declare that they have no competing interests. The authors declare that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest (such as personal or professional relationships, affiliations, knowledge, or beliefs) in the subject matter discussed in this manuscript.
- Published
- 2018
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146. Collapsing Polypoid Cysts of the Sigmoid.
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Ramai D, John F, Etienne D, Linn S, Xiao P, and Reddy M
- Published
- 2018
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147. Combined use of two supervised learning algorithms to model sea turtle behaviours from tri-axial acceleration data.
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Jeantet L, Dell'Amico F, Forin-Wiart MA, Coutant M, Bonola M, Etienne D, Gresser J, Regis S, Lecerf N, Lefebvre F, de Thoisy B, Le Maho Y, Brucker M, Châtelain N, Laesser R, Crenner F, Handrich Y, Wilson R, and Chevallier D
- Subjects
- Algorithms, Animals, Video Recording, Accelerometry methods, Behavior, Animal, Supervised Machine Learning, Turtles physiology
- Abstract
Accelerometers are becoming ever more important sensors in animal-attached technology, providing data that allow determination of body posture and movement and thereby helping to elucidate behaviour in animals that are difficult to observe. We sought to validate the identification of sea turtle behaviours from accelerometer signals by deploying tags on the carapace of a juvenile loggerhead ( Caretta caretta ), an adult hawksbill ( Eretmochelys imbricata ) and an adult green turtle ( Chelonia mydas ) at Aquarium La Rochelle, France. We recorded tri-axial acceleration at 50 Hz for each species for a full day while two fixed cameras recorded their behaviours. We identified behaviours from the acceleration data using two different supervised learning algorithms, Random Forest and Classification And Regression Tree (CART), treating the data from the adult animals as separate from the juvenile data. We achieved a global accuracy of 81.30% for the adult hawksbill and green turtle CART model and 71.63% for the juvenile loggerhead, identifying 10 and 12 different behaviours, respectively. Equivalent figures were 86.96% for the adult hawksbill and green turtle Random Forest model and 79.49% for the juvenile loggerhead, for the same behaviours. The use of Random Forest combined with CART algorithms allowed us to understand the decision rules implicated in behaviour discrimination, and thus remove or group together some 'confused' or under--represented behaviours in order to get the most accurate models. This study is the first to validate accelerometer data to identify turtle behaviours and the approach can now be tested on other captive sea turtle species., Competing Interests: Competing interestsThe authors declare no competing or financial interests., (© 2018. Published by The Company of Biologists Ltd.)
- Published
- 2018
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148. DNA from lake sediments reveals long-term ecosystem changes after a biological invasion.
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Ficetola GF, Poulenard J, Sabatier P, Messager E, Gielly L, Leloup A, Etienne D, Bakke J, Malet E, Fanget B, Støren E, Reyss JL, Taberlet P, and Arnaud F
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- Animals, Biodiversity, Climate Change, Mammals classification, Mammals genetics, Plants classification, Plants genetics, DNA, Ecosystem, Geologic Sediments chemistry, Introduced Species, Lakes
- Abstract
What are the long-term consequences of invasive species? After invasion, how long do ecosystems require to reach a new equilibrium? Answering these questions requires long-term, high-resolution data that are vanishingly rare. We combined the analysis of environmental DNA extracted from a lake sediment core, coprophilous fungi, and sedimentological analyses to reconstruct 600 years of ecosystem dynamics on a sub-Antarctic island and to identify the impact of invasive rabbits. Plant communities remained stable from AD 1400 until the 1940s, when the DNA of invasive rabbits was detected in sediments. Rabbit detection corresponded to abrupt changes of plant communities, with a continuous decline of a dominant plant species. Furthermore, erosion rate abruptly increased with rabbit abundance. Rabbit impacts were very fast and were stronger than the effects of climate change during the 20th century. Lake sediments can allow an integrated temporal analysis of ecosystems, revealing the impact of invasive species over time and improving our understanding of underlying mechanisms.
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- 2018
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149. Ulcerated gastric leiomyoma causing massive upper gastrointestinal bleeding: A case report.
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Ramai D, Tan QT, Nigar S, Ofori E, Etienne D, and Reddy M
- Abstract
Leiomyomas are rare, benign submucosal tumors originating from smooth muscle cells. The clinical presentation is usually asymptomatic, with excellent prognosis. We herein report the case of a 68-year-old female with a solitary leiomyoma found during esophagogastroduodenoscopy for hematemesis. Histopathological examination revealed smooth muscle proliferation supported by positive staining for smooth muscle myosin heavy chain and negative staining for CD117 and S-100, consistent with the marker expression pattern of leiomyoma. We report on the clinical presentation of this case, and discuss the origin, epidemiology, treatment and management of leiomyomas.
- Published
- 2018
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150. Does mistrust still linger? A bioethical perspective on colorectal cancer screening.
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Ramai D, Etienne D, and Reddy M
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- Colorectal Neoplasms ethnology, Female, Haiti epidemiology, Hispanic or Latino, Humans, Male, Mass Screening, New York, Attitude to Health, Colorectal Neoplasms diagnosis, Early Detection of Cancer, Trust
- Published
- 2018
- Full Text
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