Electrical lesions of the nucleus cuneiformis, parabrachial medial nucleus, nucleus raphe median and the nucleus raphe magnus induce an active response of defence. Local microinjections of kainic acid in these sites result in a contrary effect. The findings suggest that inhibitory locomotor system of the brainstem may influence the formation of defensive behaviour in rats.
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Front Endocrinol (Lausanne)
January 2025
Department of Obstetrics and Gynaecology, Assiut University, Assiut, Egypt.
Oxidative stress (OS) is established as a key factor in the etiology of both male and female infertility, arising from an imbalance between reactive oxygen species (ROS) production and the endogenous antioxidant (AOX) defenses. In men, OS adversely affects sperm function by inducing DNA damage, reducing motility, significantly impairing sperm vitality through plasma membrane peroxidation and loss of membrane integrity, and ultimately compromising overall sperm quality. In women, OS is implicated in various reproductive disorders, including polycystic ovary syndrome, endometriosis, and premature ovarian failure, leading to diminished oocyte quality, disrupted folliculogenesis, and poorer reproductive outcomes.
View Article and Find Full Text PDFCureus
December 2024
Psychology Department, Ministry of Defence, Riyadh, SAU.
Nutmeg and mace are commonly known for their medicinal and culinary properties. The chemical compounds found in nutmeg and mace, notably myristicin, elemicin, and safrole, have been implicated in the psychoactive and anticholinergic effects that are the result of acute toxicity. Cases of mace toxicity are not as commonly reported as nutmeg toxicity.
View Article and Find Full Text PDFBMC Neurol
January 2025
Department of Neurology, Dow University Hospital, Dow University of health sciences, Karachi, Pakistan.
Background: Oxidative damage has been implicated in multiple neurodegenerative diseases, including epilepsy. Selenium, in the form of selenoproteins is an integral part of the human antioxidant defense system. Though a relationship between the altered selenium levels and epilepsy has been reported, limited evidence is available about the expression pattern of selenoproteins in epileptic patients.
View Article and Find Full Text PDFSci Rep
January 2025
School of Microbiology, University College Cork, Cork, T12 YT20, Ireland.
Floricoccus penangensis ML061-4 was originally isolated from the leaf surface of an Assam tea plant (Camellia sinensis var. assamica) from Northern Thailand. To assess the functions encoded by the F.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. Electronic address:
Steroidal glycoalkaloids (SGAs) are specialized metabolites in Solanaceae that serve as defensive compounds and undergo significant compositional changes during fruit ripening. This study explored the roles of transcription factors SlNOR and SlNOR-like1 in SGAs biosynthesis during tomato fruit development. UPLC-MS/MS revealed dynamic changes in four major SGAs: tomatidine, β-tomatine, α-tomatine, and Esculeoside A.
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