Objective To explore the effect on the expression of ERα/PGC1α/PPARα pathway,the therapeutic effect of Danhe Liuwei Dihuang Decoction on ovariectomized NAFLD rats was observed.Methods 60 female non-pregnant SPF SD rats were randomly divided into sham operation group(Sham),model group(Model),estrogen group(E2),traditional Chinese medicine high,medium and low dose group(DHR-H/M/L).Sham group was given normal diet after sham operation,and the other groups were given high-fat,high-fructose and high-cholesterol diet(HF/HF/HC)after bilateral ovariectomy to prepare postmenopausal NAFLD model.The Sham group and the Model group were given normal saline by gavage,and the other groups were given corresponding doses of drugs by gavage.The intervention time was 12 weeks,and the experimental period was 14 weeks.The general condition and body weight of rats in each group were recorded.HE staining of uterus was used to observe the morphology of uterus,HE staining of liver and oil red O staining were used to observe steatosis.Serum liver function(ALT,AST)and lipid metabolism indexes(TG,TC)were measured by automatic biochemical analyzer.The levels of serum E2 and free fatty acid(FFA)and the expression of FFA and TG in liver tissue were detected by ELISA.The mRNA and protein expressions of ERα,PGC1α and PPARα in liver tissues were detected by RT-PCR and Western blot.Results Compared with the Model group,by Danhe Liuwei Dihuang Decoction,the body weight and liver weight of ovariectomized NAFLD rats significantly decreased,liver fat deposition significantly decreased,E2 level increased,ALT,AST,TG,TC,FFA and liver tissue homogenate FFA,TG content significantly decreased,liver ERα,PGC1α,PPARα mRNA and protein expression up-regulated(P<0.05 or P<0.01).Conclusion Danhe Liuwei Dihuang Decoction can improve liver steatosis in postmenopausal NAFLD model rats.The mechanism may be related to up-regulating the expression of ERα/PGC1α/PPARα signaling pathway to promote liver FFA oxidation and reduce liver TG deposition.

Objective To explore the effect on the expression of ERα/PGC1α/PPARα pathway,the therapeutic effect of Danhe Liuwei Dihuang Decoction on ovariectomized NAFLD rats was observed.Methods 60 female non-pregnant SPF SD rats were randomly divided into sham operation group(Sham),model group(Model),estrogen group(E2),traditional Chinese medicine high,medium and low dose group(DHR-H/M/L).Sham group was given normal diet after sham operation,and the other groups were given high-fat,high-fructose and high-cholesterol diet(HF/HF/HC)after bilateral ovariectomy to prepare postmenopausal NAFLD model.The Sham group and the Model group were given normal saline by gavage,and the other groups were given corresponding doses of drugs by gavage.The intervention time was 12 weeks,and the experimental period was 14 weeks.The general condition and body weight of rats in each group were recorded.HE staining of uterus was used to observe the morphology of uterus,HE staining of liver and oil red O staining were used to observe steatosis.Serum liver function(ALT,AST)and lipid metabolism indexes(TG,TC)were measured by automatic biochemical analyzer.The levels of serum E2 and free fatty acid(FFA)and the expression of FFA and TG in liver tissue were detected by ELISA.The mRNA and protein expressions of ERα,PGC1α and PPARα in liver tissues were detected by RT-PCR and Western blot.Results Compared with the Model group,by Danhe Liuwei Dihuang Decoction,the body weight and liver weight of ovariectomized NAFLD rats significantly decreased,liver fat deposition significantly decreased,E2 level increased,ALT,AST,TG,TC,FFA and liver tissue homogenate FFA,TG content significantly decreased,liver ERα,PGC1α,PPARα mRNA and protein expression up-regulated(P<0.05 or P<0.01).Conclusion Danhe Liuwei Dihuang Decoction can improve liver steatosis in postmenopausal NAFLD model rats.The mechanism may be related to up-regulating the expression of ERα/PGC1α/PPARα signaling pathway to promote liver FFA oxidation and reduce liver TG deposition.

Objective:To investigate the influencing factors of pathologic complete response (pCR) after neoadjuvant chemoradiotherapy (NCRT) in patients with locally advanced esophageal squamous cell carcinoma (ESCC), and to compare the clinical prognosis of ESCC patients with and without pCR after NCRT (40 Gy/ 20F).Methods:Among patients enrolled in a prospective clinical study, 87 ESCC patients treated with NCRT followed by surgery in Tianjin Medical University Cancer Institute & Hospital between June 2015 and October 2019 were selected. They were divided into the pCR ( n=35) and non-pCR groups ( n=52). Clinicopathological characteristics were retrospectively analyzed and subsequent follow-up was performed. Clinical prognosis and influencing factors were compared between two groups by using Kaplan-Meier and Cox regression analyses. Results:After NCRT, 40% of the ESCC patients could achieve pCR. Univariate analysis showed that patients in the pCR group had a disease-free survival (DFS) of 39.3 months and an overall survival (OS) of 64.0 months. In comparison, patients in the non-pCR group had a DFS of only 14.1 months and an OS of only 25.2 months. The differences were statistically significant (DFS: P<0.01, OS: P<0.05). Multivariate analysis revealed that whether pCR or not after NCRT, age, number of primary lesions, evaluation results after NCRT and postoperative pathological outcomes were important prognostic factors. The differences were statistically significant between two groups (all P<0.05). Conclusion:pCR after NCRT is significantly correlated with long-time survival of patients with ESCC, and pCR after NCRT has an important value in predicting clinical prognosis for long-term survival of ESCC patients.