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Effects of Intrauterine Isoproterenol Administration on Ovarian Follicular Development in Cows.
Vet Med Sci
January 2025
Department of Biochemistry, Faculty of Veterinary Medicine, Erzurum, Turkey.
Background: Isoproterenol (ISO) is a nonselective beta-adrenergic receptor agonist known for its vasodilatory effects. This experiment aims to investigate whether intrauterine ISO administration could alter vascular indices and follicular development in postpartum Holstein cows.
Objectives: The objectives are to evaluate the effects of intrauterine ISO administration on vascular changes and its impact on follicular development compared to placebo groups.
Scaled and Weighted Laplacian Matrices as Functional Descriptors for GPCR Ligands.
J Comput Chem
January 2025
Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, CDMX, Mexico.
The G protein-coupled receptor (GPCR) pharmacology accounts for a significant field in research, clinical studies, and therapeutics. Computer-aided drug discovery is an evolving suite of techniques and methodologies that facilitate accelerated progress in drug discovery and repositioning. However, the structure-activity relationships of molecules targeting GPCRs are highly challenging in many cases since slight structural modifications can lead to drastic changes in biological functionality.
View Article and Find Full Text PDFNonselective beta blockade enhances gut microbiome diversity in a rodent model of trauma, hemorrhage, and chronic stress.
J Trauma Acute Care Surg
November 2024
From the Department of Surgery and Sepsis and Critical Illness Research Center (J.A.M., L.S.K., E.E.P., C.G.A., K.B.K., L.E.B., P.A.E., A.M.M.), University of Florida College of Medicine, Gainesville; and The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences (G.P., R.N.), Florida State University College of Education, Health, and Human Sciences, Tallahassee, Florida.
Background: Traumatic injury leads to gut dysbiosis with changes in microbiome diversity and conversion toward a "pathobiome" signature characterized by a selective overabundance of pathogenic bacteria. The use of non-selective beta antagonism in trauma patients has been established as a useful adjunct to reduce systemic inflammation. We sought to investigate whether beta-adrenergic blockade following trauma would prevent the conversion of microbiome to a "pathobiome" phenotype.
View Article and Find Full Text PDFAltered Protein Kinase A-Dependent Phosphorylation of Cav1.2 in Left Ventricular Myocardium from Haploinsufficient Rat Hearts.
Int J Mol Sci
December 2024
Institute of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Biochemical and Pharmacological Center (BPC) Marburg, University of Marburg, 35032 Marburg, Germany.
encodes the α1c subunit of the L-type Ca channel, Cav1.2. Ventricular myocytes from haploinsufficient () rats exhibited reduced expression of Cav1.
View Article and Find Full Text PDFβ-adrenergic receptor-induced E-S potentiation in the dorsal and ventral hippocampus.
Front Synaptic Neurosci
December 2024
Laboratory of Physiology, Department of Medicine, University of Patras, Patras, Greece.
β-adrenergic receptors (β-ARs) play a critical role in modulating learning, memory, emotionality, and long-term synaptic plasticity. Recent studies indicate that β-ARs are necessary for long-term potentiation (LTP) induction in the ventral hippocampus under moderate synaptic activation conditions that do not typically induce LTP. To explore potential dorsoventral differences in β-AR-mediated effects, we applied the β-AR agonist isoproterenol (10 μM, 30 min) to dorsal and ventral hippocampal slices, recording field excitatory postsynaptic potentials (fEPSPs) and population spikes (PSs) from the CA1 region.
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