Sexual dimorphism, the condition in which males and females in a species differ beyond the morphology of sex organs, delineates critical aspects of the biology of higher eukaryotes, including selenium metabolism. While sex differences in selenium biology have been described by several laboratories, delineation of the effects of sex in selenium function and regulation of selenoprotein expression is still in its infancy. This review encompasses the available information on sex-dependent parameters of selenium metabolism, as well as the effects of selenium on sex hormones. Gaps in the current knowledge of selenium and sex are identified and discussed.
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http://dx.doi.org/10.1016/j.freeradbiomed.2018.03.036 | DOI Listing |
Mar Drugs
January 2025
College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
Chondroitin sulfate (CS), a class of glycosaminoglycans covalently attached to proteins to form proteoglycans, is widely distributed in the extracellular matrix and cell surface of animal tissues. In our previous study, CS was used as a template for the synthesis of seleno-chondroitin sulfate (SeCS) through the redox reaction of ascorbic acid (Vc) and sodium selenite (NaSeO) and we found that SeCS could inhibit tumor cell proliferation and invasion. However, its effect on angiogenesis and its underlying mechanism are unknown.
View Article and Find Full Text PDFFood Res Int
February 2025
School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China. Electronic address:
Here, a high molecular weight polysaccharide preparation from Ophiocordyceps gracilis was utilized as a stabilizer and dispersant to create nanocomposites based on selenium nanoparticles (GSP-1a-SeNPs). The NPs showed the highest stability at a selenium/polysaccharide mass ratio of 1:1, with no significant change after 28 days of storage at 4 °C. The NPs exhibited a symmetrical spheroid structure with an average diameter of 85.
View Article and Find Full Text PDFJ Clin Res Pediatr Endocrinol
January 2025
Turkish Pediatric Endocrinology and Diabetes Society, Thyroid Research Group, Türkiye.
Introduction: This study aimed to assess the clinical practices and attitudes towards Hashimoto's thyroiditis (HT) among pediatric (PEs) and adult endocrinologists (AEs).
Methods: The members of Turkish Society for Pediatric Endocrinology and Diabetes (n=502) and the Society of Endocrinology and Metabolism of Türkiye (n=910) were invited to participate in an online survey.
Results: Of the respondents (n=168), 72.
J Nanobiotechnology
January 2025
School of Life Sciences, Faculty of Medicine, Tianjin University, Tianjin, 300072, China.
Oxidative stress and inflammatory dysregulation play crucial roles in pathogenesis of acute lung injury (ALI), and their cyclic synergy drives excessive inflammatory responses and further exacerbates ALI. Therefore, new effective strategies to treat ALI are urgently needed. Herein, a novel synergistic selenium based chlorogenic acid nanoparticle was developed to disrupt the cyclic synergistic effect between oxidative stress and inflammatory response in ALI.
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.
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