Results 41 to 50 of about 18,634 (212)

Inter-individual variation in nucleotide excision repair in young adults: effects of age, adiposity, micronutrient supplementation and genotype [PDF]

open access: yes, 2009
Nucleotide excision repair (NER) is responsible for repairing bulky helix-distorting DNA lesions and is essential for the maintenance of genomic integrity.
Alison Spiers   +11 more
core   +1 more source

Data of radiation damage on selenomethionine-substituted single-domain substrate-binding protein

open access: yesData in Brief
Radiation damage is an inherent issue in X-ray crystallography. It not only damages macromolecular crystals, which lowers the quality of the diffraction intensity, but results in inaccurate structural information.
Ki Hyun Nam
doaj   +1 more source

Fontes orgânicas e inorgânicas de selênio na nutrição de vacas leiteiras: digestão, absorção, metabolismo e exigências Organic and inorganic sources of selenium in the nutrition of dairy cows: digestion, absorption, metabolism and requirements

open access: yesCiência Rural, 2007
A suplementação de bovinos leiteiros com selênio é feita tanto em sua forma orgânica como inorgânica. Nas plantas, o Se é incorporado aleatoriamente na sua forma orgânica e encontra-se como análogo de aminoácidos sulfurados, ou seja, selenometionina e ...
Martin Gierus
doaj   +1 more source

Metabolism of Tracer 75Se Selenium From Inorganic and Organic Selenocompounds Into Selenoproteins in Rats, and the Missing 75Se Metabolites

open access: yesFrontiers in Nutrition, 2021
We now know much about selenium (Se) incorporation into selenoproteins, and there is considerable interest in the optimum form of Se for supplementation and prevention of cancer.
Jacqueline K. Evenson, Roger A. Sunde
doaj   +1 more source

Selenoprotein H Functions as a PPARα Coactivator to Link Selenium Homeostasis to Hepatic Lipid Metabolism and Protect against Steatohepatitis

open access: yesAdvanced Science, EarlyView.
Our study identifies selenium deficiency as a hallmark of MASH pathogenesis. Dietary selenium supplementation enhances hepatic fatty acid oxidation (FAO) and attenuates MASH progression by activating the PPARα pathway via selenoprotein H (SELENOH). This selenium‐SELENOH‐PPARα nexus redefines the functional scope of selenoproteins, moving from redox ...
Yuwei Zhang   +11 more
wiley   +1 more source

Effects of different sources of selenium supplementation on antioxidant indices, biochemical parameters, thyroid hormones and Se status in transition cows

open access: yesActa Scientiarum: Animal Sciences, 2019
The aim of this study was to determine the effects of supplementing close-up and fresh dairy cows’ diets with sodium selenite or organic sources of selenium (Se) on the serum biochemical parameters and antioxidant indicators and Se status.
Mohsen Khalili   +4 more
doaj   +1 more source

Structure and Function of a Mycobacterial NHEJ DNA Repair Polymerase [PDF]

open access: yes, 2006
Non homologous end-joining (NHEJ)-mediated repair of DNA double-strand breaks in prokaryotes requires Ku and a specific multidomain DNA ligase (LigD).
Aidan J. Doherty   +59 more
core   +1 more source

Post‐Translational Regulation of CD8+ T Cell Fate and Dysfunction in Tumor Immunity

open access: yesAdvanced Science, EarlyView.
This review delineates how post‐translational modifications (PTMs) function as a central regulatory interface governing CD8+ T cell activation, differentiation, persistence, and exhaustion in antitumor immunity. By integrating antigenic, metabolic, and microenvironmental cues, diverse PTM programs coordinate transcriptional and chromatin states that ...
Zihao Zhou   +8 more
wiley   +1 more source

Organic Selenium as Antioxidant Additive in Mitigating Acrylamide in Coffee Beans Roasted via Conventional and Superheated Steam

open access: yesFoods, 2020
Selenium is an essential micronutrient with significant antioxidant activity promising in mitigating the formation of acrylamide during high-temperature roasting. In this study, green coffee beans pretreated with selenium (Se-coffee) were investigated on
Ahmad K. Alafeef   +2 more
doaj   +1 more source

The effect of trace minerals on the stability of retinol acetate, cholecalciferol and selenomethionine stability within premixes

open access: yesJournal of Applied Animal Nutrition, 2021
This study compared the effect of an organic proteinate mineral source and an inorganic sulphate mineral source in relation to their effect on the stability of retinol acetate and cholecalciferol within simulated premixes, while comparing the stability ...
M. Concarr, I. Sinkunaite, R. Murphy
doaj   +1 more source

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