In a experiment on female rats lasting two years, the influence of total gamma radiation if a dose of 100 rad on the state of the neuroendocrine system was studied. Penetrating radiation causes a disturbance of the hormonal balance and of the sexual cycle, and, as a consequence, the development of tumors of the incretory glands and target organs.
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Environ Pollut
January 2025
Laboratório de Endocrinologia Experimental-LEEx, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-graduação em Endocrinologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Brazil; i3S- Instituto de Investigação e Inovação em Saúde, Porto, Portugal; Programa de Pós-graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-graduação em Ciências Morfológicas, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil. Electronic address:
Tributyltin is a biocide and bisphenol S is a plasticizer. The effects of the TBT+BPS mix on thyroid axis function are unknown. This study evaluated the effects of subacute exposure to TBT and BPS, both in mix and alone, in female young Wistar rats.
View Article and Find Full Text PDFPhysiol Behav
January 2025
Departamento de Biología de la Reproducción. D.C.B.S, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P, 09340, Ciudad de México, México. Electronic address:
Phytoestrogens are non-steroidal compounds that, can act as agonists and/or antagonists by binding to estrogen receptors; hence they can modify estrogen-dependent processes of neonatal sexual differentiation. Results of the analysis of the sexual behavior of experimental rats that received 6.8 mg of isoflavones/kg/day, showed significantly more mating activity, but fewer ejaculations (p<0.
View Article and Find Full Text PDFNeuroscience
January 2025
Department of Physiology, College of Medicine, Health Sciences Centre, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait. Electronic address:
Maternal immune activation (MIA) induces long-term cognitive impairments by modulating the gamma-aminobutyric acid (GABA)ergic system. Experimental evidence suggests that maternal immune challenge with bacterial active ingredient lipopolysaccharide (LPS) reduces GABAergic tone in the offspring's prefrontal cortex. In this study, we aimed to assess whether interleukin-6 (IL-6) contributes to this reduced GABAergic system in the prefrontal cortex of juvenile offspring.
View Article and Find Full Text PDFExp Parasitol
January 2025
Post-graduate Program in Studies in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa, PB, Brazil; Laboratory of Toxicological Tests, Federal University of Paraíba, João Pessoa, PB, Brazil; Post-graduate Program in Studies in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil.
One of the main factors that have made it difficult to control malaria is the large number of parasites that are resistant to the usual antimalarial drugs. Therefore, the development of new drugs that are more effective and with low toxicity for humans is necessary. In this work, we evaluated the adduct 2-(3-hydroxy-1-methyl-2-oxoindolin-3-yl) acrylonitrile, also called CHISACN, as a potential antimalarial through in vitro studies, and evaluated its effects in silico and in vivo toxicology.
View Article and Find Full Text PDFJ Appl Physiol (1985)
January 2025
Department Physical Therapy.
The purpose of this study was to investigate the ability of mechanotherapy to enhance recovery or prevent loss of muscle size with atrophy, in female rats. Female F344/BN rats were assigned to weight bearing (WB), hindlimb suspended (HS) for 14 days with reambulation for 7 days without (RA) or with (RAM) mechanotherapy (study 1), or to WB, HS for 7 days, with (HSM) or without mechanotherapy (study 2) to gastrocnemius. Muscle fiber cross sectional area (CSA) and type, collagen, satellite cell number, and protein synthesis (K) and degradation (K) were assessed.
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