Results 61 to 70 of about 1,446,129 (349)

Two Faces of Vitamin C—Antioxidative and Pro-Oxidative Agent

open access: yesNutrients, 2020
Vitamin C has been known for decades. It is common in everyday use as an element of the diet, supplementation, and a preservative. For years, research has been conducted to precisely determine the mechanism of action of ascorbate in the cell.
J. Kaźmierczak-Barańska   +3 more
semanticscholar   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

open access: yesArthritis Care &Research, Accepted Article.
Objectives Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies. To help patients and providers in the decision‐making process, we developed
Anahita Deboo   +19 more
wiley   +1 more source

Recent Advances in the Synthesis of K-Vitamins

open access: yesCHIMIA, 1986
The term «Vitamin K» is a collective name and embraces a whole series of 2-methyl-1,4- naphthoquinone derivatives which play a decisive part in the control of blood clotting.
August Rüttimann
doaj   +1 more source

Antioxidant and prooxidant activity of new 1,2-diols and thiadiazoles derivatives in Saccharomyces cerevisiae yeast cells

open access: yesCumhuriyet Science Journal, 2020
The present research was undertaken to determine the effect of substituted 2,2'-[(2R,3R)-2,3-dihydroxy-1,4-dioxobutane-1,4-diyl]bis(N-R-hydrazine-1-carbothioamide and (1R,2R)-1,2-bis[5-(R-amino)-1,3,4-thiadiazole-2-yl]ethane-1,2-diols on the antioxidant ...
Ahmet Çetin, Arzu Karatepe
doaj   +1 more source

Vitamin D Supplementation and Prevention of Type 2 Diabetes.

open access: yesNew England Journal of Medicine, 2019
BACKGROUND Observational studies support an association between a low blood 25-hydroxyvitamin D level and the risk of type 2 diabetes. However, whether vitamin D supplementation lowers the risk of diabetes is unknown.
A. Pittas   +34 more
semanticscholar   +1 more source

Vitamin D’s Effect on Immune Function

open access: yesNutrients, 2020
Ever since its discovery by Windhaus, the importance of the active metabolite of vitamin D (1,25-dihydroxyvitamin D3; 1,25-(OH)2D3) has been ever expanding.
P. Martens   +3 more
semanticscholar   +1 more source

At‐Home Early Diagnosis of Mastitis: Calibration‐Free Analysis of Sodium to Potassium Ratio in Breast Milk

open access: yesAdvanced Functional Materials, EarlyView.
MAMAWEL is introduced as the first calibration‐free potentiometric sensor for at‐home mastitis diagnosis. By measuring the sodium‐to‐potassium ratio in breast milk, the device reliably differentiates between healthy and mastitis‐affected samples with less than 10% error.
Ali Soleimani   +9 more
wiley   +1 more source

GLP-1 Receptor Agonists – Good for Body Weight, Bad for Micronutrient Status?

open access: yesCurrent Developments in Nutrition
Obesity is a global health issue with a prevalence predicted to affect 24% of the world's population by 2035. A high-caloric intake and a sedentary lifestyle are, along with other factors, the main causes of obesity.
Felix Kerlikowsky   +3 more
doaj   +1 more source

A lipid-soluble antioxidant from polyallomer centrifuge tubes

open access: yesJournal of Lipid Research, 1974
Santowhite, a commercial antioxidant used in the manufacture of polypropylene, contaminates 12-ml polyallomer tubes to the extent of 0.2–0.3 mg/tube. It is distributed through the plastic and appears as a microscopic dust on the tubes' surfaces.
Clyde E. Opliger   +2 more
doaj   +1 more source

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek   +4 more
wiley   +1 more source

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