Forsythiaside A attenuates mastitis via PINK1/Parkin-mediated mitophagy.

BACKGROUND: Bovine mastitis is the most common animal production disease in the global dairy industry, which affects the health of dairy cows. When bovine mastitis occurs, the mitochondrial metabolism of breast tissue increases, and the relationship between inflammation and mitophagy has become a hot topic for many scholars. The abuse of antibiotics leads to the increase of resistance to bovine mastitis. FTA is one of the main effective components of Forsythia suspensa, which has anti-inflammatory, anti-infection, anti-oxidation and anti-virus pharmacological effects, and has broad application prospects in the prevention and treatment of bovine mastitis. However, the relationship between the anti-inflammatory effects of FTA and mitophagy is still unclear. PURPOSE: This study mainly explores the anti-inflammatory effect of FTA in bovine mastitis and the relationship between mitophagy. METHODS: MAC-T cells and wild-type mice were used to simulate the in vitro and in vivo response of mastitis. After the pretreatment with FTA, CsA inhibitors and siPINK1 were used to interfere with mitophagy, and the mitochondrial function impairment and the expression of inflammatory factors were detected. RESULTS: It was found that pre-treatment with FTA significantly reduced LPS induced inflammatory response and mitochondrial damage, while promoting the expression of mitophagy related factors. However, after inhibiting mitophagy, the anti-inflammatory effect of FTA was inhibited. CONCLUSION: This study is the first to suggest the relationship between the anti-inflammatory effect of FTA and mitophagy. PINK1/Parkin-mediated mitophagy is one of the ways that FTA protects MAC-T cells from LPS-induced inflammatory damage.

[Investigation and analysis on diagnostic standard for TCM Syndrome Differentiation in 400 patients with climacteric syndrome].

OBJECTIVE: To explore the thinking and method of studying the diagnostic standard for TCM Syndrome Differentiation by means of clinical epidemiological investigation on climacteric syndrome. METHODS: Adopting DME (design measurement evaluation), the field investigation data of 400 patients with climacteric syndrome were statistically managed and analyzed using blind method. The distribution of syndromes, including information of four-diagnosis of various syndromes as well as the laboratory findings in patients were studied using factor analysis and model of structural equation. RESULTS: The Syndrome types of climacteric syndrome were identified as the Gan-Yang exuberance type, the Shen-Yang deficiency type, the Gan-Shen Yin-deficiency type and the Gan-stagnancy injuring Spirit type. CONCLUSION: Thinking of the diagnostic standard study for TCM Syndrome Differentiation is to identify the supposed diagnostic standard of a disease based on retrospective study, to formulate a new hypothetical standard of Syndrome by way of field investigation, category analysis, factor analysis, and critical theory, followed with identification of Syndrome distribution in the disease, its critical syndrome, typical syndrome, complicated syndrome, and criteria for Syndrome Differentiation.