Crude Tieguanyin oolong tea polysaccharides regulate intestinal immune and gut microflora in dextran sulfate sodium-induced mice colitis.

Background: The global incidence and prevalence of inflammatory bowel diseases (IBDs) have been increasing. Epidemiological studies, clinical trials, and animal experiments have indicated a negative association between the consumption of tea and IBD. This study aims to investigate the protective effects of crude Tieguanyin oolong tea polysaccharides (CTPS) on experimental colitis, while also exploring the underlying mechanisms.

Tieguanyin extracts ameliorated DSS-induced mouse colitis by suppressing inflammation and regulating intestinal microbiota.

Previous studies have shown that a typical kind of oolong tea, Tieguanyin, has multiple health benefits, while there is no research investigating its effects on inflammatory bowel disease (IBD). In this study, we aimed to explore the alleviation effects of Tieguanyin water (TWE) and ethanol (TES) extracts on IBD. Physiological activity status, colitis severity (disease activity index (DAI), colon and spleen weight), inflammatory cytokines (interleukin (IL)-4, interferon-γ (IFN-γ), IL-17, transforming growth factor-β (TGF-β), and IL-10) and microbiota composition were measured in experimental colitis mice induced by dextran sulfate sodium (DSS).

Exploring the bacterial community and fermentation characteristics during silage fermentation of abandoned fresh tea leaves.

The potential application of silage fermentation on abandoned fresh tea leaves (AFTL) was investigated. Dynamic profiles of fermentation-related components, characteristic components and the bacterial community of AFTL during ensiling were analysed. The results showed that after ensiling for 60 days, the concentrations of lactic, acetic and propionic acid increased, whereas a high pH value (4.

Matcha green tea prevents obesity-induced hypothalamic inflammation suppressing the JAK2/STAT3 signaling pathway.

Obesity is an increasingly severe global health problem, leading to chronic inflammation and metabolic disorders in both peripheral tissues and the central nervous system. Matcha is a powdered green tea, and it is very popular in recent years as a beverage and food additive. Matcha green tea has been reported to have outstanding potential in regulating obesity-related metabolic syndrome.

Y chromosomal STR haplotypes in the northeastern China Han population.

Haplotype frequencies of 20 Y chromosome STR loci, DYS19, DYS385 (a/b), DYS389 (I, II), DYS390, DYS391, DYS393, DYS434, DYS435, DYS437, DYS438, DYS439, DYS441, DYS442, DYS444, DYS445, DYS446, DYS452 and DYS456 were determined from a sample of 122 unrelated males in the northeastern China Han populations.

Haplotype diversity in mitochondrial DNA hypervariable region I, II and III in a Korean ethnic group from northeast China.

Sequence polymorphism of the mitochondrial DNA (mtDNA) control region, hypervariable regions HVR I, II and III, from 55 unrelated Korean ethnic group individuals from northeast China (YanBian area) were determined by PCR amplification and cycle sequencing.