Lipid peroxidation, antioxidant system, nitric oxide and glutamate metabolism were studied in the brain of 2-day-old rats who had developed in the conditions of experimental deficiency of uteropla- cental circulation. It was found that in such rats lipid peroxidation activated while antioxidant defense decreased. Content of L-arginin - substrate of nitric oxide synthesis and concentration of its end metabolites increased evidencing for hyperproduction of NO in homogenates of the brain of experimental animals. Concentration of glutamate and activity of basic enzymes involved in regulation of its metabolic (glutamatdehydrogenase) and neurotransmitter pool (glutaminase) were significantly elevated in rats who had developed in conditions of intrauterine hypoxia. Correlations were established between hyperproduction of nitric oxide, glutamate concentration and lipid peroxidation processes.
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Adv Healthc Mater
January 2025
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.
The hydrogel adhesives with strong tissue adhesion and biological characteristics adhm202404447are urgently needed for injury sealing and tissue repair. However, the negative correlation between tissue adhesion and the mechanical strength poses a challenge for their practical application. Herein, a bio-inspired cohesive enhancement strategy is developed to prepare the hydrogel adhesive with simultaneously enhanced mechanical strength and tissue adhesion.
View Article and Find Full Text PDFFront Plant Sci
January 2025
Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.
Introduction: is a medicinal plant that produces silymarin, which has been demonstrated to possess antiviral, anti-neurodegenerative, and anticancer activities. Silybin (A+B) are two major hepatoprotective flavonolignans produced predominantly in fruits. Several attempts have been made to increase the synthesis of silymarin, or its primary components, silybin (A+B).
View Article and Find Full Text PDFJ Toxicol Pathol
January 2025
Laboratory of Veterinary Pathology, Osaka Metropolitan University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka 598-8531, Japan.
The liver, a major organ involved in substance metabolism, is highly susceptible to toxicity induced by chemicals and their metabolites. Although damage-associated molecular patterns (DAMPs) have been implicated in the development of sterile inflammation following cell injury, their involvement in chemically induced hepatocellular injury remains underexplored. This study aimed to determine the role of high-mobility group box 1 (HMGB1), a DAMP, in a rat model of liver injury treated with thioacetamide, a hepatotoxicant.
View Article and Find Full Text PDFFront Physiol
January 2025
Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
Introduction: Access to electric light has exposed living organisms to varying intensities of light throughout the 24 h day. Dim light at night (DLAN) is an inappropriate signal for the biological clock, which is responsible for the circadian organization of physiology. During the gestational period, physiological adaptations occur to ensure a successful pregnancy and optimal fetal development.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
January 2025
Biomedical and Translational Sciences Institute, Neuroscience Division, Athens, GA, United States.
Significance: Women are at increased risk for mood disorders, which may be partly attributed to exposure to endocrine-disrupting chemicals (EDCs) during sensitive periods such as pregnancy. Exposure during these times can impact brain development in the offspring, potentially leading to mood disorders in later life. Additionally, fluctuating levels of endogenous estrogens, as seen during pregnancy, or the use of oral contraceptives, can further elevate this risk.
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