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Efforts have been made to find a better therapeutic approach with fewer side effects in treating chronic obstructive pulmonary disease (COPD). This study investigated the effect of Buyuan decoction (BYD) on autophagy in COPD rats. An experimental model with Sprague-Dawley rats was established by lipopolysaccharide (LPS) injection and cigarette smoke exposure. Rats were randomly allocated into blank control (normal control), experimental model, low-dose BYD (8.0 g/kg/day), medium-dose BYD (16.0 g/kg/day), high-dose BYD (32.0 g/kg/day) and 3-MA (methyladenine) groups (6 rats/group). Cell and tissue morphology were observed using hematoxylin and eosin staining. Autophagic vesicles were examined with a transmission electron microscope. Protein expression of LC3-II/I, BNIP- 1, ATG7, p62, PI3K and p-PI3K in lung tissue was detected by Western blotting. Compared with the experimental model group, the inflammatory infiltrate in lung tissue was reduced, the nuclei of the pulmonary epithelial cells were restored to normal, and the expression of LC3, BNIP1, ATG7 and p-PI3K was significantly downregulated, while p62 expression was significantly upregulated after treatment with the BYD. The effect was most significant in the low-dose BYD group (P

Background: Studies have shown an association between the triglyceride–glucose (TyG) index and carotid artery plaque (CAP). However, the relationship between the TyG index and plaque burden in individuals with primary hypertension remains uncertain. Our study specifically aimed to explore this relationship among primary hypertension patients. Methods: This study involved 5,153 hospitalized patients diagnosed with primary hypertension who were undergoing treatment at the Affiliated Hospital of Jiangxi University of Chinese Medicine. We utilized multivariate logistic regression, penalized spline regression, and generalized additive models to assess the association between the TyG index and CAP burden. Results: There were 2,400 patients with primary hypertension in all. The multivariate study, which took into account all covariables, showed a positive correlation between the TyG index and CAP (OR: 1.25, 95% CI: 1.04–1.5). When the TyG index was evaluated as quartiles, the risk of CAP in the Q3 and Q4 levels of the TyG index were 1.4 (95% CI: 1.03–1.91) and 1.54 (95% CI: 1.11–2.14) times greater than in the Q1 level after adjusting for all covariables (P for trend <.05). Regardless of whether the TyG index was used as a continuous variable or a categorical variable, it has no significant association with the risk of single plaque after adjusting for all confounders (p ≥.05). The TyG index was found to be substantially correlated with the presence of multiple plaques when analyzed as a continuous variable (OR: 1.32, 95% CI: 1.09–1.59, p =.004). When the TyG index was evaluated as quartiles, the adjusted OR in Q3 and Q4 were 1.49 (95% CI: 1.06–2.1) and 1.67 (95% CI: 1.16–2.41), respectively, with Q1 as reference (P for trend =.005). The relationship between the TyG index and the presence of multiple plaques is also consistent in all subgroups. Conclusion: The TyG index is positively associated with the presence of multiple plaques in patients with primary hypertension, whereas no association is found between the TyG index and the presence of a single carotid plaque. [ABSTRACT FROM AUTHOR]