Publications by authors named "Jing'en Li"

The metabolism, tissue distribution and excretion of taxifolin in rat after oral administration of taxifolin encapsulated zein-caseinate Nanoparticles (TZP) were studied. The isomerization of taxifolin in rat small intestine and colon was found. Besides isomers, 16 metabolites of taxifolin were identified in rat feces, plasma and urine by UPLC-QTOF-MS.

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Unlabelled: Slowly digestible gorgon nut starch (GN-SDS) was prepared by heating-cooling treatment (HCT), meanwhile its morphological and structural features were characterized in detail by SEM, DSC, XRD and IR detection. The optimized parameters of GN-SDS processing were as following: starch milk (20%) was heated at 100 °C for 20 min, and then cooled under 4 °C for 24 h. Under the optimized parameters, the SDS content increased from 20.

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Article Synopsis
  • Alzheimer's disease (AD) is linked to cognitive decline, and this study explores how Dihydromyricetin (DMY) can mitigate these effects in aging mice induced by d-galactose.
  • Through 16 weeks of d-gal injections and DMY supplementation, the study found significant improvements in cognitive tests and brain health, with DMY enhancing antioxidant activity and decreasing harmful substances in the brain.
  • DMY also helps reduce cholinergic damage by inhibiting acetylcholinesterase, suggesting its potential as a therapeutic agent in combating cognitive impairments associated with AD.
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Three shell materials, lecithin (ZNP-L), chitosan (ZNP-CH) and sodium caseinate (ZNP-SC), were used to prepare core-shell zein nanoparticles. Astilbin was encapsulated as a model flavonoid to compare the influence of the shell materials on zein nanoparticles both and . The particle size was moderately increased by lecithin and sodium caseinate, but notably increased by chitosan.

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Article Synopsis
  • Taxifolin, a natural dihydroflavonol, was tested for its effects on obesity and gut microbiota in mice fed a high-fat diet for 15 weeks.
  • Supplementation with taxifolin did not affect food or water intake but led to reduced body weight gain, decreased fat accumulation, and improved liver health by lowering cholesterol and enhancing antioxidant activity.
  • The study found that taxifolin improved gut microbiota diversity, counteracting the dysbiosis caused by a high-fat diet, suggesting its potential as a therapeutic for obesity-related issues.
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  • Bambusa multiplex cv Fernleaf (B. multiplex) leaf extract was analyzed, revealing high levels of C-glycosyl flavonoids, particularly isoorientin and vitexin.
  • The extract demonstrated strong inhibitory effects on pancreatic lipase and α-glucosidase, suggesting potential for reducing fat absorption.
  • In vivo experiments on rats indicated that the extract led to decreased fat absorption and increased fat excretion, correlating the extract's C-glycosyl flavonoid content with triglyceride levels in feces.
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Genome-wide DNA methylation was used to study the lipid-lowering effect of Cyclocarya paliurus (Batal) Iljinskaja polysaccharide (CPP). The objective of this study was to investigate the hypolipidemic effects and the potential underlying mechanisms of action of CPP-2 in high-fat emulsion (HFE)-induced mice. The results showed that CPP-2 reduced the level of genome-wide DNA methylation in the liver of HFE-induced mice, which had a lipid-lowering effect by regulating the AMP-activated protein kinase (AMPK) signaling-, fatty acid metabolism-, fatty acid biosynthesis- and adipocytokine signaling pathways.

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The aim of this study was to investigate the primary structure of an acetylated Cyclocarya paliurus polysaccharide (Ac-CPP) and its protective effect on HO-treated dendritic cells. The backbone of Ac-CPP was →3)-β-D-Galp-(1→, with some branches α-L-Araf-(1→ residues at O-6 and O-5, β-D-Galp-(1→ and 3,5,6)-β-D-Galf-(1 residues at O-4 and acetyl groups were substituted at the O-2 and O-6 positions of 3)-β-D-Galp-(1 residues. The CPP and Ac-CPP significantly increased the levels of superoxide dismutase, glutathione peroxidase and catalase on HO-treated dendritic cells.

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The study was designed to investigate the chemical composition and antioxidant activities of polysaccharides from Tea. The chemical composition of green tea polysaccharides (GTPS) was analyzed by Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscope (SEM), thermogravimetric (TGA), gas chromatograph (GC), and high-performance gel-permeation chromatography (HPGPC). Then, the antioxidant activities of GTPS, effects of GTPS on body weight, and the antioxidant activities in chickens were studied.

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Four new polysaccharides (GPP-20, GPP-40, GPP-60 and GPP-80) were fractionated from Gynura procumbens leaves by 20%, 40%, 60% and 80% (v/v) ethanol, successively. Their physicochemical properties including the contents of neutral sugar, uronic acid and protein, as well as the monosaccharide composition were determined. In addition, the antioxidant activities of them were investigated via the reducing power assay and scavenging capacities of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals and hydroxyl free radicals, respectively.

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In recent decades, the polysaccharides from the medicinal plants have attracted a lot of attention due to their significant bioactivities, such as anti-tumor activity, antioxidant activity, anticoagulant activity, antidiabetic activity, radioprotection effect, anti-viral activity, hypolipidemic and immunomodulatory activities, which make them suitable for medicinal applications. Previous studies have also shown that medicinal plant polysaccharides are non-toxic and show no side effects. Based on these encouraging observations, most researches have been focusing on the isolation and identification of polysaccharides, as well as their bioactivities.

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A water-soluble pectic polysaccharide (MP-A40) was isolated and purified from Mosla chinensis Maxim. cv. Jiangxiangru for the first time, with a molecular weight of 32,600Da.

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Objectives: Intussusception is rare in infants younger than 4 months, and the use of air enema for reduction of intussusception has been limited. In this retrospective study, we analyzed the predictors of successful reduction of intussusception using air enema in infants younger than 4 months.

Methods: This is a retrospective chart review of 97 intussusception patients of younger than 4 months between January 2008 and December 2012.

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Polysaccharide MP was isolated from Mosla chinensis Maxim cv. jiangxiangru. It was composed of rhamnose, arabinose, xylose, mannose, glucose and galactose in a molar ratio of 5.

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The aim of the present study was to investigate whether oxidative stress and immune dysfunction could be attenuated by Ganoderma atrum polysaccharide (PSG-1) in d-galactose (d-gal)-induced aging mice, and provide evidence for its effects. The results showed that PSG-1 significantly decreased lipid peroxidation in liver, brain, and spleen, but concomitantly increased the activities of superoxide dismutase, catalase, and glutathione peroxidase compared with the d-gal group. Elevation of glutathione contents and attenuation of glutathione disulfide contents were also found in PSG-1-treated animals.

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Background: Herba Moslae is a well-known edible and medicinal plant in China, and the essential oil, which is assumed to contain the active components, was isolated by steam distillation method. The aim of this study was to investigate the antimicrobial activity and the antioxidant activity of the essential oil from Herba Moslae.

Results: The essential oil from Herba Moslae exhibited antimicrobial activity against all of the tested bacteria and fungi.

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