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A water-soluble neutral homopolysaccharide (PLP-1) was obtained from the roots of Pueraria lobata by DEAE cellulose and Sephadex G-200 gel chromatography purification. The average molecular weight of PLP-1 was 16.2 kDa. Monosaccharide composition analysis showed that PLP-1 was composed of glucose as a glucan. The structure of PLP-1 was characterized on the basis of extensive physical and chemical analysis, which indicated that the backbone of PLP-1 was mainly composed of →3)-α-d-Glcp(1→ and →4)-β-d-Glcp(1→ with a molar ratio of 7.0 : 1.0. Moreover, the hypoglycemic activity of PLP-1 was investigated by palmitic acid and high glucose induced insulin resistant HepG2 cells. The results elucidated that PLP-1 could decrease the glucose concentration by up-regulating the expression of PI3K and AKT, and down-regulating the expression of FoxO1, PCK2, and G6Pase in insulin resistant cells. Therefore, PLP-1 could serve as a dietary supplement to ameliorate insulin resistance for diabetic patients.
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http://dx.doi.org/10.1039/d0fo01234c | DOI Listing |
Chem Biodivers
September 2025
Chongqing Key Laboratory of Development and Utilization of DaoDi Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical College, Chongqing, P. R. China.
Three new steroidal saponins, kingianoside L-N (1-3), whose structures were elucidated through comprehensive spectroscopic analysis, and 15 known compounds (4-18) were isolated from Polygonatum kingianum var. grandifolium, a source of the traditional antihyperglycemic medicine Polygonati rhizome. The effects of compounds 1-13 on α-glucosidase activity were evaluated in vitro.
View Article and Find Full Text PDFNaturwissenschaften
September 2025
Department of Biomedical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India.
Wounds with extensive tissue damage are highly susceptible for microbial infections delaying the process of wound healing. Currently, biomaterials with therapeutic molecules emerged as key players in wound repairing. This work developed a novel collagen-based hydrogel loaded with allicin and silver nanoparticles.
View Article and Find Full Text PDFG Ital Nefrol
August 2025
UO Nefrologia e Dialisi, Ospedale di Cassino, Italia.
SGLT-2 inhibitors are a relatively new class of antidiabetic drugs. They activate a transcriptional response similar to calorie restriction characterized by the up-regulation of sensors involved in nutrient deprivation, such as SIRT1 and AMPK, and the down-regulation of mTOR, a molecule involved in nutritional excess signaling. The purpose of this review is to illustrate the main pathways of nutrient deprivation: a complex mechanistic framework partly responsible for the cardio-renal benefits that makes these drugs unique.
View Article and Find Full Text PDFJCI Insight
September 2025
Division of Cardiovascular Medicine, Department of Medicine.
Aortic valve stenosis is a progressive and increasingly prevalent disease in older adults, with no approved pharmacologic therapies to prevent or slow its progression. Although genetic risk factors have been identified, the contribution of epigenetic regulation remains poorly understood. Here, we demonstrated that histone deacetylase 3 (HDAC3) maintains aortic valve structure by suppressing mitochondrial biogenesis and preserving extracellular matrix integrity in valvular interstitial fibroblasts.
View Article and Find Full Text PDFFood Res Int
November 2025
Centre for Pre-clinical Studies, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India. Electronic address:
This is the first report on the functional potential of Akhuni, an ethnic food of Northeast India, against diabetes. Akhuni is a traditional fermented soybean product known for its umami taste and delicacy, commonly used in the cuisine of Northeast India. Treatment with ethanolic extract of Akhuni (AKET) for 8 weeks decreased glucose levels in the blood, increased body mass and enhanced the ability to tolerate glucose dose-dependently in the streptozotocin-induced diabetic mice in comparison with the group of diabetic control mice (DBC).
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