Taurine (2-aminoethane sulphonic acid), a sulphur-containing beta amino acid, is the most prevalent free intracellular amino acid in many human and animal tissues. Vitamin C metabolism is also fluenced by sulphur-containing amino acids. The aim of this study is to investigate the effect of taurine administration on the vitamin C levels of plasma and several tissues (brain, liver, kidneys) in mice with incisional skin wounds. Animals were divided into two as control and taurine groups. Taurine was freshly dissolved in sterile saline and administered daily (60 microl, ip) for five days in the taurine group. At the end of the fifth day, the animals were killed by decapitation. The brain, liver and kidneys were immediately removed. Vitamin C levels were measured in plasma and several tissues. The administration of taurine had no effect on the plasma vitamin C levels (P>0.05) but significantly increased in liver and kidneys (P<0.001). In conclusion, taurine may affect the vitamin C metabolism in tissues by different mechanisms.
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http://dx.doi.org/10.1007/s00726-003-0049-1 | DOI Listing |
Endocr Metab Immune Disord Drug Targets
January 2025
Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, 24227, 20006, Saudi Arabia.
Introduction: Cardiovascular disease (CVD) is a leading cause of mortality on a global scale, with a higher prevalence observed among men. This study investigated the protective effect of vitamin D supplementation on CVD.
Methods: A cohort of thirty mice was divided into three groups: control, T1 diabetic, and T1 diabetic groups that received vitamin D treatment.
Int Forum Allergy Rhinol
January 2025
Division of Division of Rhinology & Skull Base Surgery Department of Otolaryngology, University of Florida, Gainesville, Florida, USA.
Rationale: Smoking has been shown to be associated with circulating deficiencies in 25(OH)D3 and reduced sinonasal tissue levels of the active form of vitamin D, 1,25(OH)2D3. Given vitamin D's ability to reduce inflammation, we sought to examine if intranasal (IN) delivery of calcitriol [clinical analog of 1,25(OH)2D3] could reduce inflammation and improve disease severity in a murine model of chronic cigarette smoke-induced sinonasal inflammation (CS-SI).
Methods: Mice were exposed to CS 5 h/day, 5 days/week for 9 months, and then began IN calcitriol three times per week for 4 weeks.
Atheroscler Plus
March 2025
Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
Background And Aims: Vitamin D binding protein (DBP) serves a dual function as a vitamin D carrier and actin scavenger. Free DBP is present in high concentrations in serum, while a smaller pool is bound to lipoproteins like HDL and VLDL. The role of DBP's interaction with lipoproteins remains unclear.
View Article and Find Full Text PDFSynth Syst Biotechnol
June 2025
Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
Riboflavin, an important vitamin utilized in pharmaceutical products and as a feed additive, is mainly produced by metabolically engineered bacterial fermentation. However, the reliance on antibiotics in the production process leads to increased costs and safety risks. To address these challenges, an antibiotic-free riboflavin producer was constructed using metabolic engineering approaches coupled with a novel plasmid stabilization system.
View Article and Find Full Text PDFJ Microsc Ultrastruct
December 2022
Department of Histology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Background: Nanoparticles of zinc oxide (ZnO-NPs) are frequently implemented in cosmetics, additives, and electronic devices. Moreover, their applications extend to water treatment, drug delivery, and cancer therapy. As a result, NP toxicity became an essential subject in biosafety research.
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