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Olanzapine exposure disordered lipid metabolism, gut microbiota and behavior in zebrafish (Danio rerio).
Comp Biochem Physiol C Toxicol Pharmacol
January 2025
College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China. Electronic address:
Olanzapine (OLZ) is widely used in the treatment of schizophrenia, and its metabolic side effects have garnered significant attention in recent years. Despite this, the specific side effects of OLZ and the underlying mechanisms remain inadequately understood. To address this gap, zebrafish (Danio rerio) were exposed to OLZ at concentrations of 35.
View Article and Find Full Text PDFDeficiency of histamine H receptors in parvalbumin-positive neurons leads to hyperactivity, impulsivity, and impaired attention.
Neuron
January 2025
Department of Pharmacology and Department of Pharmacy of the Second Affiliated Hospital, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, School of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China. Electronic address:
Attention deficit hyperactivity disorder (ADHD), affecting 4% of the population, is characterized by inattention, hyperactivity, and impulsivity; however, its neurophysiological mechanisms remain unclear. Here, we discovered that deficiency of histamine H receptor (HR) in parvalbumin-positive neurons in substantia nigra pars recticulata (PV) attenuates PV neuronal activity and induces hyperactivity, impulsivity, and inattention in mice. Moreover, decreased HR expression was observed in PV in patients with ADHD symptoms and dopamine-transporter-deficient mice, whose behavioral phenotypes were alleviated by HR agonist treatment.
View Article and Find Full Text PDFGenetic and neurobiological aspects of psychosis in major neurocognitive disorder.
Medwave
January 2025
Departamento de Psiquiatría, Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile.
Psychiatric symptoms are frequent in neurocognitive disorders and dementias. Psychotic symptoms, mainly hallucinations and delusions, may appear in up to 50% of cases, influencing morbidity and mortality. Genetic, neurobiological, and environmental factors are involved in their onset.
View Article and Find Full Text PDFMolecular Basis of Na, K-ATPase Regulation of Diseases: Hormone and FXYD2 Interactions.
Int J Mol Sci
December 2024
Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-590, RJ, Brazil.
The Na, K-ATPase generates an asymmetric ion gradient that supports multiple cellular functions, including the control of cellular volume, neuronal excitability, secondary ionic transport, and the movement of molecules like amino acids and glucose. The intracellular and extracellular levels of Na and K ions are the classical local regulators of the enzyme's activity. Additionally, the regulation of Na, K-ATPase is a complex process that occurs at multiple levels, encompassing its total cellular content, subcellular distribution, and intrinsic activity.
View Article and Find Full Text PDFHigh glucose couples DJ-1 with PTEN to activate PDGFRβ for renal proximal tubular cell injury.
PLoS One
January 2025
VA Research, Education and Clinical Center, South Texas Veterans Health Care System, San Antonio, Texas, United States of America.
Article Synopsis
- The study investigates how high glucose levels in diabetes lead to kidney cell damage through the activation of a signaling pathway involving DJ-1 and PTEN.
- DJ-1 is found to be upregulated in kidney cells under high glucose conditions, which triggers the Akt/mTORC1 signaling pathway, resulting in cell growth and fibrosis.
- The research indicates that inhibiting DJ-1 can prevent glucose-induced cell growth and damage, while overexpressing DJ-1 replicates the harmful effects, highlighting its role in renal injury related to diabetes.
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