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Preparation, characterization and in vitro antioxidant activities of a homogeneous polysaccharide from Prunella vulgaris.
Fitoterapia
December 2024
State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, China. Electronic address:
Prunella vulgaris is a medicinal and edible homologous plant, commonly used as a folk medicine to treat diseases. The Prunella vulgaris polysaccharides (PVPs) are reported with the antioxidant activity. This work was designed to isolate, characterize, and test the antioxidant activity of purified PVPs from P.
View Article and Find Full Text PDFCausal association between metabolites and age-related macular degeneration: a bidirectional two-sample mendelian randomization study.
Hereditas
December 2024
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, No. 1, Dongjiaomin Lane, Dongcheng District, Beijing, 100730, China.
Background: Age-related macular degeneration (AMD) is the leading cause of visual impairment in the elderly population. Accumulating evidence has revealed the possible association between metabolites and AMD. This study aimed to assess the effect of plasma metabolites on AMD and its two subtypes using a bidirectional two-sample Mendelian randomization approach.
View Article and Find Full Text PDFZinc cadmium sulphide-based photoreforming of biomass-based monosaccharides to lactic acid and efficient hydrogen production.
J Colloid Interface Sci
December 2024
Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China. Electronic address:
Approaches that add value to biomass through the use of photoreforming reactions offer great opportunities for the efficient use of renewable resources. Here, we constructed a novel zinc cadmium sulphide/molybdenum dioxide-molybdenum carbide-carbon (ZnCdS-y/MoO-MoC-C) heterojunction which was applied to photoreforming of biomass-based monosaccharides for hydrogen and lactic acid production. Bandgap engineering effectively modulated the redox capacity of ZnCdS-y and exposed more (101) crystalline surfaces, which improved the lactic acid selectivity.
View Article and Find Full Text PDFRifaximin-Alpha Increases Lactase Activity in Patients with Irritable Bowel Syndrome Without Constipation and Small Intestinal Bacterial Overgrowth.
Dig Dis Sci
December 2024
Gastrointestinal Motility Laboratory, Department of Gastroenterology, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico D.F., Mexico.
Background: Irritable bowel syndrome symptoms are associated with diverse pathophysiological mechanisms including small intestinal bacterial overgrowth and food intolerance. Small intestinal bacterial overgrowth leads to the decreased activity of several digestive enzymes, including lactase.
Aims: To assess the efficacy of rifaximin-alpha on the symptoms and lactase activity of patients with irritable bowel syndrome without constipation.
Rational design of a highly active -glycosyltransferase mutant using fragment replacement approach.
Eng Microbiol
March 2024
State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China.
The modularity of carbohydrate-active enzymes facilitates that enzymes with different functions have similar fragments. However, because of the complex structure of the enzyme active sites and the epistatic effects of various mutations on enzyme activity, it is difficult to design enzymes with multiple mutation sites using conventional methods. In this study, we designed multi-point mutants by fragment replacement in the donor-acceptor binding pocket of -glycosyltransferase (ApNGT) to obtain novel properties.
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