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Differential peptide-dependent regulation of growth hormone (GH): A comparative analysis in pituitary cultures of reptiles, birds, and mammals.
Heliyon
June 2024
Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, Qro., 76230, Mexico.
Growth hormone (GH) is a pituitary protein that exerts pleiotropic roles in vertebrates. The mechanisms regulating GH synthesis and secretion are finely controlled by hypothalamic neuropeptides and other factors. These processes have been considerably studied in mammals but are still poorly understood in other groups.
View Article and Find Full Text PDFCommunity-Based Cluster-Randomized Trial to Reduce Opioid Overdose Deaths.
N Engl J Med
September 2024
The authors' affiliations are as follows: Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Department of Medicine, Section of General Internal Medicine, and Boston University School of Public Health (J.H.S.), Boston Medical Center and Boston University Chobanian and Avedisian School of Medicine, Departments of Medicine and Pediatrics (S.M.B.), Boston Medical Center, Section of General Internal Medicine (T.J.B., P.B., D. Beers, C. Bridden, K.C., J. Carpenter, E.B.G., A. Harris, S.K., Nikki Lewis, R.M.L., M.R., M. Saucier, R.S.C.), Boston University Chobanian and Avedisian School of Medicine (T.A.B.), Boston University School of Public Health, Department of Health Law, Policy and Management (D.D.B., M.D. Stein), Massachusetts Department of Public Health, Bureau of Substance Addiction Services (D. Calvert), Boston University School of Social Work (D. Chassler), Boston University School of Public Health, Department of Biostatistics (D.M.C.), Boston University Chobanian and Avedisian School of Medicine, Department of Medicine, Section of Infectious Diseases, and Boston University School of Public Health, Department of Health Law, Policy and Management (M.-L.D.), Massachusetts HCS Community Advisory Board (J.L.K., K.P.), Boston Medical Center, Section of Infectious Diseases (E.N.K., C.S.), Boston Medical Center and Boston University Chobanian and Avedisian School of Medicine, Department of Medicine, Section of General Internal Medicine (M.R. Larochelle, J.L.T., A.Y.W.), Boston Medical Center, Department of Medicine (H.M.L.), Massachusetts Department of Public Health, Registry of Vital Records and Statistics (S.P.), Tufts University School of Medicine, Department of Public Health and Community Medicine (T.J.S.), and McLean Hospital, Division of Alcohol, Drugs, and Addiction, and Harvard Medical School, Department of Psychiatry (R.W.) - all in Boston; the Social Intervention Group, School of Social Work, Columbia University (N.E.-B., A. Dasgupta, J.L.D., A. Davis, K.H.G., L. Gilbert, D.A.G.-E., D.E.G., J. Hotchkiss, T. Hunt, J.L.N., E.R., S. Rodriguez, E.W.), New York HCS Community Advisory Board (A. Angerame, R. Caldwell, S.M., K.M., J.P., K.R., W.R., M. Salvage), Columbia University Irving Medical Center, Department of Psychiatry (D. Blevins, A.N.C.C., F.R.L., E.V.N.), Albert Einstein College of Medicine, Department of Epidemiology and Population Health (N.B., D.G., D.W.L., B.D.R.), Montefiore Medical Center (J. Chaya), New York State Office of Addiction Services and Supports (C.O.C.), City University of New York (T. Huang, N.S.), Weill Cornell Medicine, Department of Population Health Sciences (B.S.), and the New York Office of Mental Health (A. Sullivan), New York, and the New York State Department of Health, Albany (T.Q.N., E.S.) - all in New York; the Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine (T.J.W.), University of Cincinnati Corrections Institute (T.D.), University of Cincinnati College of Medicine, Department of Emergency Medicine (C.E.F., J. McMullan), University of Cincinnati Medical Center, Emergency Medicine (N.H.D.), University of Cincinnati College of Medicine, Department of Environmental and Public Health Sciences (T.I.), Case Western Reserve University School of Medicine, Department of Family Medicine and Community Health (T.V.P.), Brightview Health (S. Ryan), and University of Cincinnati College of Medicine, Department of Psychiatry and Behavioral Neuroscience (J.S.), Cincinnati, the College of Medicine (R.D.J., S.F., K.H., J.E.L., M.S.L.) and the College of Social Work (B.F.), Center of Health Outcomes and Policy Evaluation Studies (W.F.), Department of Family and Community Medicine (T.R.H., A.S.M., D.M.W.), College of Public Health and Translational Data Analytics Institute (A. Hyder), Department of Emergency Medicine (E.K.), Ohio Colleges of Medicine Government Resource Center (A.M., R.M.), One Ohio Foundation (A.N.), College of Public Health (P.S., E.E.S., A. Shoben), Recovery Ohio (A. Shadwick), and the School of Communication (M.D. Slater), Ohio State University, Columbus, Case Western Reserve University School of Medicine, Department of Population and Quantitative Health Sciences (D.A.F.), and Case Western Reserve University School of Medicine, Clinical and Translational Science Institute (M.W.K.), Cleveland, and Brown County Mental Health and Addiction Services, Georgetown (D.J.V.) - all in Ohio; RTI International, Research Triangle Park, NC (E.A.O., J.A., A. Aldridge, D. Babineau, C. Barbosa, R. Caspar, B.E., L. Glasgow, S.G., M.E.H., J. Holloway, C.K., P.A.L., R.C.L., L.N., N.V., G.A.Z.); the National Institute on Drug Abuse, Bethesda, MD (R.K.C., J.V.); University of Colorado School of Medicine, Divisions of General Internal Medicine and Infectious Diseases, Aurora (J.B.); University of North Texas Health Science Center, Fort Worth (S.T.W.); Kentucky Office of Drug Control Policy, Frankfort (V.L.I.), University of Kentucky, College of Public Health (H.M.B.), University of Kentucky, Kentucky Injury Prevention Research Center (J.L. Bush, S.L.H ), University of Kentucky College of Medicine, Department of Medicine, Division of Infectious Diseases, Center on Drug and Alcohol Research (L.C.F.), University of Kentucky, Department of Pharmacy Practice and Science (P.R.F., D.H., D.R.O.), Commonwealth of Kentucky, Cabinet for Health and Family Services (E.F., K.R.M.), University of Kentucky, Department of Communication (D.W.H., Nicky Lewis), University of Kentucky, Department of Behavioral Science (H.K.K.), University of Kentucky College of Medicine, Center on Drug and Alcohol Research (M.R. Lofwall, S.L.W.), University of Kentucky, Department of Health Management and Policy and Center for Innovation in Population Health (M.L.M.), University of Kentucky, Substance Use Research Priority Area (J. Miles, M.F.R., P.R., D.S.), University of Kentucky College of Medicine, Internal Medicine (D.A.O.), University of Kentucky, Department of Sociology (C.B.O.), University of Kentucky (B.D.R.), University of Kentucky, Department of Biostatistics (S.S., P.M.W.), University of Kentucky, Dr. Bing Zhang Department of Statistics (K.L.T.), University of Kentucky, Department of Behavioral Science (M. Staton, H.L.S.), University of Kentucky, Center for Health Equity Transformation (D.J.S.-W.), University of Kentucky College of Medicine, Institute for Biomedical Informatics (J.C.T.), and University of Kentucky, Department of Epidemiology and Environmental Health (R.A.V.-S., A.M.Y.), Lexington, and the Commonwealth of Kentucky, Clark County Health Department, Winchester (J.G.) - all in Kentucky; Purdue University, Department of Psychological Sciences, Lafayette, IN (J.L. Brown); University of Miami Miller School of Medicine, Department of Public Health Sciences, Miami (D.J.F.); Oak Ridge Associated Universities (ORAU), Health Communications, Marketing, and Promotion Program, Oak Ridge, TN (J.G.R.); and University of Pennsylvania School of Nursing, Department of Family and Community Health, Philadelphia (L.E.S.).
Article Synopsis
- The study examines a community-based intervention aimed at reducing opioid-related overdose deaths by increasing the adoption of evidence-based practices including overdose education and naloxone distribution, medication treatment for opioid use disorder, and prescription safety.
- In a cluster-randomized trial, 67 communities across Kentucky, Massachusetts, New York, and Ohio were assigned to either receive the intervention or serve as a control group during a period marked by the COVID-19 pandemic and an increase in fentanyl overdoses.
- Results showed no significant difference in opioid-related overdose death rates between the intervention and control groups, with both averaging similar rates, indicating that the community-engaged strategies did not have a measurable impact during the study period.
Selenium protects against nesfatin-1 modulation of the hypothalamic-pituitary-testicular axis during hypothyroidism in male rats.
Physiol Rep
January 2024
Medical Physiology Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
Normal gonadal function can be disrupted by hypothyroidism. Hypothyroidism disturbs testicular function directly and centrally by affecting the hypothalamic-pituitary-testicular axis with unclear mechanism. As nesfatin-1 neurons co-localized with TRH and GnRH neurons in the hypothalamus, it could play a role in centrally hypothyroidism induced testicular dysfunction.
View Article and Find Full Text PDF[C]Paraoxon: Radiosynthesis, Biodistribution and In Vivo Positron Emission Tomography Imaging in Rat.
J Pharmacol Exp Ther
January 2024
Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, Montana (C.-K.C., J.M.G., C.M.T.); Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California (T.R.H., J.E.B., T.L.H., H.F.V.); and Departments of Radiology, Small Animal Clinical Sciences, and Biomedical Engineering and Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan (K.R.Z.)
Synthesis of the acetylcholinesterase inhibitor paraoxon (POX) as a carbon-11 positron emission tomography tracer ([C]POX) and profiling in live rats is reported. Naïve rats intravenously injected with [C]POX showed a rapid decrease in parent tracer to ∼1%, with an increase in radiolabeled serum proteins to 87% and red blood cells (RBCs) to 9%. Protein and RBC leveled over 60 minutes, reflecting covalent modification of proteins by [C]POX.
View Article and Find Full Text PDFEffects of sub-chronic exposure to microcystin-LR on the endocrine system of male rats.
Sci Total Environ
January 2024
Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China.
Microcystins (MCs) can cause reproductive and developmental toxicity and disrupt endocrine homeostasis in mammals. In the present study, male, Sprague-Dawley (SD) rats were administrated 3 or 30 μg MC-LR/kg, body mass (bm) per day via intraperitoneal (i.p.
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