Numerous studies have demonstrated the efficacy of selenium compounds in preventing and treating lifestyle-related diseases such as cancer and cardiovascular disorders. The formulation of selenium-enriched supplements for humans and animals, particularly those containing selenium yeast, is highly advantageous. These products are rich in organic selenium derivatives, showing significantly higher bioavailability than inorganic forms of selenium. A particularly promising selenium analogue of sulphur-containing compounds is selenobiotin. The literature indicates that and strains can synthesise this compound. This research aimed to evaluate the effect of selenium supplementation on the biosynthesis of biotin and selenobiotin in and . The results have the potential to advance biotechnological approaches for the production of selenobiotin for various applications. A method based on affinity chromatography was used to quantify selenobiotin. The results confirmed that both yeast strains could synthesise selenobiotin in addition to biotin. In cells, selenobiotin accounted for up to 17.3% of the total biotin vitamer fraction. In comparison, in cells, it accounted for up to 28.4% of the sum of biotin and its analogues. The highest levels of selenobiotin were observed in cells cultured with selenomethionine.
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http://dx.doi.org/10.3390/molecules29235607 | DOI Listing |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11643466 | PMC |
Immun Ageing
December 2024
Department of Biomedical Sciences, Institute of Health, Jimma University, Jimma, 378, Oromia, Ethiopia.
Immunosenescence, the slow degradation of immune function over time that is a hallmark and driver of aging, makes older people much more likely to be killed by common infections (such as flu) than young adults, but it also contributes greatly to rates of chronic inflammation in later life. Such micro nutrients are crucial for modulating effective immune responses and their deficiencies have been associated with dysfunctional immunity in the elderly. In this review, we specifically focused on the contribution of major micro nutrients (Vitamins A, D and E, Vitamin C; Zinc and Selenium) as immunomodulators in ageing population especially related to inflame-ageing process including autoimmunity.
View Article and Find Full Text PDFVet Sci
December 2024
College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China.
The bovine uterus is susceptible to bacterial infections after calving, particularly from (), which often results in endometritis. Additionally, postpartum stress in cows can elevate cortisol levels in the body, inhibiting endometrial regeneration and reducing immune function, thereby further increasing the risk of infection. Selenium (Se) is a common feed additive in dairy farming, known for its anti-inflammatory and antioxidant effects.
View Article and Find Full Text PDFVet Sci
December 2024
College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.
Yak (), a special breed of cattle on the Qinghai-Tibet Plateau, has low fertility due to nutritional deficiency, especially the trace elements. The steroid hormones estradiol (E2) and progesterone (P4) synthesized by yak follicular granulosa cells (BGCs) are involved in the entire reproductive process. In the present study, we investigated the effects of trace elements and vitamins on yak follicular GCs, including the cellular activity, the synthesis of E2 and P4, and the expression of genes related to steroid hormone synthesis.
View Article and Find Full Text PDFFood Sci Nutr
December 2024
Faculty of Medicine, Institute for Prevention and Cancer Epidemiology University of Freiburg Freiburg Germany.
Previously published recommendations for vegetarian (including vegan) diets for children have highlighted the need for vitamin B12 supplementation. Increased attention to several other key nutrients (including iodine, vitamin D, calcium, and iron) has also been recommended. However, an overview focusing on supplementation guidelines, specifically for vegan infants, has not been published, and a potential requirement for iodine and/or selenium supplementation in (some) vegan infants has not been discussed.
View Article and Find Full Text PDFEnviron Res
December 2024
School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course, Hefei, 230032, China. Electronic address:
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