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How does dopamine convert into norepinephrine? Insights on the key step of the reaction.
J Mol Model
January 2025
Laboratorio de Química Teórica Computacional (QTC), Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, 7820436, Santiago de Chile, Chile.
Context: Dopamine -monooxygenase (D M) is an essential enzyme in the organism that regioselectively converts dopamine into R-norepinephrine, the key step of the reaction, studied in this paper, is a hydrogen atom transfer (HAT) from dopamine to a superoxo complex on D M, forming a hydroperoxo intermediate and dopamine radical. It was found that the formation of a hydrogen bond between dopamine and the D M catalyst strengthens the substrate-enzyme interaction and facilitates the HAT which takes place selectively to give the desired enantiomeric form of the product. Six reactions leading to the hydroperoxo intermediate were analyzed in detail using theoretical and computational tools in order to identify the most probable reaction mechanism.
View Article and Find Full Text PDFHand hygiene, knowledge and training motivational drives: findings from a survey in a university hospital.
Front Public Health
January 2025
Section of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy.
This study assessed healthcare workers' (HCWs) knowledge and adherence to hand hygiene principles in a large Italian university hospital, focusing on identifying knowledge gaps and evaluating training effectiveness. A specifically designed 17-item questionnaire, based on the World Health Organization (WHO) Hand Hygiene Knowledge Questionnaire, was used to measure theoretical knowledge, the role of training, and the impact of experience. The survey had an 8% participation rate (542 responses from a total of 6,749 HCWs), with higher responses among nurses and doctors.
View Article and Find Full Text PDFPsychedelics for the Treatment of Psychiatric Disorders: Interpreting and Translating Available Evidence and Guidance for Future Research.
Am J Psychiatry
January 2025
Department of Psychiatry (McIntyre, Mansur, Rosenblat) and Department of Pharmacology and Toxicology (McIntyre, Mansur, Rosenblat), University of Toronto, Toronto; Brain and Cognition Discovery Foundation, Toronto (Kwan, Teopiz); Faculty of Medicine, University of Ottawa, Ottawa (Kwan); Champalimaud Research and Clinical Center, Champalimaud Foundation, Lisbon (Oliveira-Maia); NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon (Oliveira-Maia); Department of Psychiatry and Behavioral Sciences, University of South Carolina School of Medicine, Greenville (Maletic); Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford (Suppes); Department of Psychiatry, University of California, San Diego (Stahl).
During the past decade, there has been extraordinary public, media, and medical research interest in psychedelics as promising therapeutics for difficult-to-treat psychiatric disorders. Short-term controlled trial data suggest that certain psychedelics are effective and safe in the treatment of major depressive disorder, treatment-resistant depression, and posttraumatic stress disorder. Preliminary evidence also supports efficacy in other psychiatric disorders (e.
View Article and Find Full Text PDFGlobal, regional, and national burden of very early-onset colorectal cancer and its risk factors from 1990 to 2019: A systematic analysis for the global burden of disease study 2019.
Neoplasia
December 2024
Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China. Electronic address:
Aims: Very early-onset colorectal cancer (EOCRC) was defined as CRC diagnosed before the age of 35 proposed by the latest EOCRC management guideline. Until now, the disease burden of very EOCRC has never been reported. This study aimed to explore the burden of very EOCRC across the past three decades.
View Article and Find Full Text PDFEffect of leaf extract and its active components on heart muscle cell apoptosis induced by hyperglycemia.
Open Vet J
November 2024
Department of Anatomical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Background: Hyperglycemia is a condition in which blood sugar levels increase excessively due to a variety of factors, one of which is the body's inability to regulate insulin properly. Diabetes closely relates to this condition, which significantly contributes to premature death and disability. Long-term diabetes treatment accompanied by a strict diet provides real results in controlling blood glucose levels but can cause side effects.
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