Daidzin Inhibits Endoplasmic Reticulum Stress by Regulating FoxO1 Expression to Alleviate Osteoarthritis Progression.

Endoplasmic reticulum stress (ERS) and chondrocyte apoptosis are recognized as critical pathological factors in the development of osteoarthritis (OA). Daidzin (DDZ), an isoflavone derived from soybean, exhibits antioxidant, anticancer, and anti-atherosclerotic properties. This research seeks to investigate the therapeutic potential and primary mechanisms of Daidzin using a murine Destabilization of the Medial Meniscus instability model and a TBHP-induced in vitro OA chondrocyte model.

Chemometric Model for Rapid Determination of Syringyl/Guaiacyl Ratio in Non-Wood by FT-NIR Spectroscopic Data.

The present study is to develop a cost-effective, non-destructive and rapid method for quantification of syringyl/guaiacyl (S/G) ratio content in non-wood lignin, which is based on FT-NIR spectroscopic data and chemometric modelling techniques. The S/G ratio in 22 non-wood lignins was determined by wet chemical method. Then the same samples were run with FT-NIR, and the spectroscopic data were pre-processed with Savitzky-Golay (S-G) on their 1st and 2nd derivatives.

Palmatine activation of TFEB enhances autophagy and alleviates endoplasmic reticulum stress in intervertebral disc degeneration.

Background: Intervertebral disc degeneration (IDD) is integral in lower back pain and involves complex pathophysiological processes, including nucleus pulposus (NP) cell apoptosis and extracellular matrix (ECM) breakdown. Palmatine (PLT), an isoquinoline alkaloid extracted from Fibraurea recisa Pierre of the family Menispermaceae, is recognised for its anti-inflammatory, antioxidant, and neuroprotective effects. Nevertheless, researches have not well explored the impact of PLT on IDD.

Ginkgolide A enhances FoxO1 expression and reduces endoplasmic reticulum stress to mitigate osteoarthritis in mice.

This study aimed to investigate the effects of Ginkgolide A (GA) on chondrocytes under oxidative stress and to elucidate its potential molecular mechanisms. Using a destabilization of the medial meniscus (DMM) model in mice and an in vitro osteoarthritis (OA) model induced by tert-butyl hydroperoxide (TBHP) in chondrocytes, we validated the therapeutic efficacy and underlying mechanisms of GA. Potential OA targets of GA were identified through network pharmacology, Gene Ontology (GO) analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis.

Ajugol's upregulation of TFEB-mediated autophagy alleviates endoplasmic reticulum stress in chondrocytes and retards osteoarthritis progression in a mouse model.

Background: Osteoarthritis (OA), a degenerative disease with a high global prevalence, is characterized by the degradation of the extracellular matrix (ECM) and the apoptosis of chondrocytes. Ajugol, a extract derived from the herb Rehmannia glutinosa, has not yet been investigated for its potential in modulating the development of OA.

Methods: We employed techniques such as western blotting, immunofluorescence, immunohistochemistry, X-ray imaging, HE staining, and SO staining to provide biological evidence supporting the role of Ajugol as a potential therapeutic agent for modulating OA.