Lipoic acid trisulfide, a sulfane sulfur-containing trisulfide of α-lipoic acid, holds promise in pharmaceuticals, yet knowledge gaps persist regarding its synthesis, properties, and stability. Here, we synthesized the lipoic acid trisulfide with a purity exceeding 99% from α-lipoic acid on a gram scale and obtained novel β-cyclodextrin clathrates (84%-95% yield). Differential scanning calorimetry confirmed the inclusion of lipoic acid trisulfide in β-cyclodextrins. The resulting β-cyclodextrin clathrates exhibited significant improvements in water solubility and thermal stability. This pioneering study demonstrated a novel approach to the practical preparation of trisulfide and its β-cyclodextrin clathrates as active ingredients, paving the way for clinical development.
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http://dx.doi.org/10.1093/bbb/zbae042 | DOI Listing |
Int J Mol Sci
December 2024
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China.
Primary biliary cholangitis (PBC) is a chronic disease, the prevalence of which has been increasing in recent years. And the prevalence of patients who test negative with existing diagnostic techniques remains high. It was found that the antigenic BCOADC-E2 protein could detect patients with a negative original test.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary.
Diabetic sensorimotor neuropathy (DSPN) is strongly associated with the extent of cellular oxidative stress and endothelial dysfunction in type 2 diabetes (T2DM). Alpha-lipoic acid (ALA) attenuates the progression of DSPN through its antioxidant and vasculoprotective effects. Kallistatin has antioxidant and anti-inflammatory properties.
View Article and Find Full Text PDFBiosci Microbiota Food Health
August 2024
Local Brand R&D, SSP Co., Ltd., Opera City Tower, 3-20-2 Nishi Shinjuku, Shinjuku-ku, Tokyo 163-1488, Japan.
Phagocytosis by immunocompetent cells is a key role in the biological defense mechanism and is the starting point of the reaction that leads from innate to acquired immunity. Several studies have demonstrated that some lactic acid bacteria strains activate the innate and acquired immune systems of the host. However, further investigation of the mechanism and improvement of usefulness is needed because the effect differs depending on the type and strain of lactic acid bacteria.
View Article and Find Full Text PDFCureus
December 2024
Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Yufu, JPN.
Background: The uremic toxin indoxyl sulfate (IS) is an important factor in chronic kidney disease (CKD) progression. Inhibitors of the renin-angiotensin system and add-on therapy with mineralocorticoid receptor (MR) antagonists can help reduce proteinuria and suppress CKD progression. However, the association between IS and MR activation remains unknown.
View Article and Find Full Text PDFJ Nutr Sci Vitaminol (Tokyo)
January 2025
Narita Development Center, SSP Co., Ltd.
Combinations of cysteine, ascorbic acid, and pyridoxine are frequently used in oral formulations. Although there have been many reports on the efficacy of each of these ingredients, little information is known about their combined effects on skin cells. The purpose of this study was to evaluate the combined effects of cysteine, ascorbic acid, and pyridoxine, as well as the effect of adding α-lipoic acid, on skin cells.
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