A5066988712- Natural product bioactivities and synthesis
- Phytochemical compounds biological activities
- Biological Activity of Diterpenoids and Biflavonoids
- Phytochemistry and Biological Activities
- Plant biochemistry and biosynthesis
- Bioactive Natural Diterpenoids Research
- Bee Products Chemical Analysis
- Polysaccharides and Plant Cell Walls
- Insect and Pesticide Research
- Phytochemicals and Antioxidant Activities
- Plant and animal studies
- Polysaccharides Composition and Applications
- Multicomponent Synthesis of Heterocycles
- Remote Sensing and LiDAR Applications
- Advanced Image Fusion Techniques
- Advanced Glycation End Products research
- Medicinal Plant Pharmacodynamics Research
- Pharmacological Effects of Natural Compounds
- Synthesis of Organic Compounds
- Food Chemistry and Fat Analysis
- Tea Polyphenols and Effects
- Traditional and Medicinal Uses of Annonaceae
- Botanical Studies and Applications
- Ginseng Biological Effects and Applications
- Image Enhancement Techniques
Hebei Provincial Center for Disease Control and Prevention
2024
Weifang Medical University
2018-2024
Peking University
2024
Yantai Nanshan University
2023
Yanbian University
2019-2020
Toona sinensis (A. Juss.) Roem., which is widely distributed in China, a homologous plant resource of medicine and food. The leaves, seeds, barks, buds pericarps T. can be used as with traditional efficacy. Due to its extensive use the ancient world, has significant development potential. In this review, 206 compounds, including triterpenoids (1–133), sesquiterpenoids (134–135), diterpenoids (136–142), sterols (143–147), phenols (148–167), flavonoids (168–186), phenylpropanoids (187–192)...
Advanced glycation end products (AGEs) and the receptor for AGEs (RAGE) both play important roles in diabetic nephropathy (DN). Previous studies have identified glomerular mesangial cells (GMCs) injury as a key early risk factor development of DN. Kaempferitrin (KM) is potent antioxidant with hypoglycemic action. Although KM known to protect against AGE-induced damage GMCs, effects mechanisms by which they occur are poorly understood. In this study, cultured rat GMCs were exposed oxidative...
Two new flavonoids, (2S)-6,8-dimethyl-5,7,3′,4′-tetrahydroxyflavanone 4′-O-β-D-glucopyranoside (1) and quercetin 3-O-β-D-(6′′-p-methoxybenzoyl)-galactopyranoside (2), together with ten known flavonoids (3–12) were isolated from the leaves of Rhododendron dauricum L. The structures characterized spectroscopic data (1D 2D NMR HR-ESI-MS). evaluated for their inhibitory effects on production tumour necrosis factor (TNF)-α in LPS-stimulated RAW 264.7 cells. Compound 11 exhibited activity against...
Jiaming Wanga, Mei Jinb, Chunshi Jina, Chao Yea, Yi Zhoua, Rongshen Huanhuan Cuia, Wei Zhoua* & Gao Lia*a Key Laboratory of Natural Resources Changbai Mountain and Functional Molecules Ministry Education, Yanbian University College Pharmacy, Yanji, P. R. China; b Department Hospital, China
Toona sinensis (A. Juss.) Roem is an edible medicinal plant that belongs to the genus within Meliaceae family. It has been confirmed display a wide variety of biological activities. During our continuous search for active constituents from seeds T. sinensis, two new acyclic diterpenoids (1-2), together with five known limonoid-type triterpenoids (3-7), apotirucallane-type (8-12), and three cycloartane-type (13-15), were isolated characterized. Their structures identified based on extensive...
In LPS‐stimulated mouse inflammation model, Laoshan black tea polysaccharides (BTPSs) showed significant anti‐inflammatory activity. Three water‐soluble acidic (BTPS 3‐1, BTPS 3‐2, and 3‐3) were purified. They contained glucose (Glc), galactose (Gal), fucose (Fuc), rhamnose (Rha), glucuronic acid (GlcA), mannose (Man) at molar ratios of 9.0 : 4.9 1.7 1.5 1.0, 9.5 5.3 1.6 3.5 2.0 2.1 0.9 1.0 with average molecular weights 28.38, 14.39, 11.00 kDa, respectively. reduced the levels NO, TNF‐ α ,...
Sanguisorba officinalis L. is a traditional herbal plant that belongs to the genus and family Rosaceae. Two new phenolic glycosides (1-2), ten known phenolics (3-12), six monoterpenoid (13-18) were isolated from roots of S. using silica gel column preparative middle pressure liquid chromatography (MPLC). The chemical structures elucidated based on extensive spectroscopic experiments, including 1D 2D NMR as well HR-ESI-MS, comparison with those reported in literature. Compounds 3-5, 13...
Sanguisorba officinalis L. is a traditional herbal plant that belongs to the genus and family Rosaceae. A new ursane-type triterpenoid, 3-oxo-urs-11, 13(18)-dien-19, 28-olide (1), two known triterpenoids (3 − 4) three oleanane-type (2, 5 6) were isolated from roots of S. by silica gel column MPLC. Their structures identified interpretation spectroscopic data (1 D NMR, 2 HR-ESI-MS) comparison with those reported in literature. Compound was Rosaceae family, compounds 3–5 obtained Sanguisorba,...
Toona sinensis is a medicinal and edible plant that belongs to the genus of family Meliaceae. Phytochemical investigations carried out on this plant, seven apotirucallane-type triterpenoids (1-7), two cycloartane-type (8-9), four sterols (10-13), sesquiterpenes (14-15), phenols (16-19), one lignin (20) were isolated from pericarp T. by silica gel column preparative middle pressure liquid chromatography. Their structures identified interpretation NMR comparison with those reported in...
The polysaccharides were acquired from the seeds of T. sinensis by hot water extraction, ethanol precipitation, decoloration with macroporous 900 resin, and deproteinization sevag reagent, which possessed significantly immunomodulatory activity on levels IgA, IgG, IgM, relative indices thymus spleen, phagocytosis index mice in vivo. (TSP) separated purified using DEAE-52 cellulose Sephacryl S-300 column chromatography to obtain TSP-3a characterized molecular weight, monosaccharides...
A novel pectic polysaccharide, named GTPS3-1, was isolated and purified from Laoshan green tea polysaccharide (GTPS) through DEAE Sepharose Fast Flow Sephacryl S-300 columns, its structure characterized anti-inflammatory activity explored. with a molecular weight of 26.05 kDa, mainly composed galacturonic acid, galactose, rhamnose arabinose in molar ratio 4.72:2.5:1.68:1 on the basis monosaccharide composition. Structural analysis results revealed that GTPS3-1 highly branched pectin...
The glands of bees are responsible for generating and secreting various biologically active substances that significantly impact bee physiological health adaptability. This study aimed to investigate the effects adding citric acid (CA) feed on gland development royal jelly quality. By formulating with varying proportions CA, evaluation was undertaken pollen feeding by honeybees under laboratory conditions, along CA major glands, determine suitable addition proportions. Further optimization...
As a common defense mechanism in Hymenoptera, bee venom has complex components. Systematic and comprehensive analysis of components can aid early evaluation, accurate diagnosis, protection organ function humans cases stings. To determine the differences composition metabolic pathways between Apis cerana mellifera, proton nuclear magnetic resonance (
Abstract In beekeeping, when natural nectar or pollen sources become limited, it is crucial to provide supplemental bee feed maintain the viability of colony. This study was conducted during autumn food shortage season, which bees were fed with different proportions modified feed. We identified an optimal diet by evaluating honeybee longevity, consumption, body weight, and gut microbe distribution, serving as a control diet. The results indicated that preferred mixture 65% defatted soy...