Objective:To investigate the change of fibroblast growth factor 19 (FGF19) in patients with metabolic syndrome (MS) and its diagnostic significance.Methods:According to the number of abnormal metabolic indexes, 175 outpatients and inpatients with MS were divided into Group Ⅲ, Group Ⅳ and Group Ⅴ, with 68 cases, 57 cases and 50 cases, respectively. 40 healthy people were served as normal control group (NC group). Serum FGF19 concentration was measured by enzyme-linked immunosorbent assay (ELISA). The height, weight, waist circumference, blood pressure, blood lipid, fasting and 2-hour postprandial blood glucose, fasting insulin and serum C-reactive protein were measured. Multiple stepwise regression was used to analyze the related influencing factors of FGF19, and the threshold value of FGF19 in the diagnosis of MS was determined by drawing receiver operating characteristic (ROC) curve.Results:The levels of serum FGF19 in NC, Ⅲ, Ⅳ and Ⅴ groups decreased gradually, and the differences were statistically significant ( P<0.05). Multiple stepwise regression analysis showed that BMI, serum total cholesterol, glycosylated hemoglobin and waist circumference were independent influencing factors of FGF19 ( P<0.05). ROC curve analysis showed that the ROC area of FGF19 was 0.849, the threshold was 115.4 pg/ml, with sensitivity 0.875 and specificity 0.667. Conclusions:With the increase of metabolic abnormalities in MS, the level of FGF19 decreased, which was related to obesity and glucose and lipid metabolism disorder. It may be an index to predict and diagnose MS.

Objective To evaluate the effects of group medical visits and peer education on the compliance behaviors of patients with acne vulgaris,and to explore the effective health education approaches for patients with acne vulgaris.Methods A total of 80 patients with acne vulgaris were enrolled from Hospital of Dermatology,Chinese Academy of Medical Sciences during December 2016.They were randomly and equally divided into 2 groups:intervention group receiving conventional health education combined with group medical visits and peer education,and control group receiving conventional health education alone.At week 1,2 and 4 after the intervention,the compliance behaviors were compared between the 2 groups.Results Totally,18 patients were lost to the follow-up due to refusals and non-response,and 32 patients in the intervention group and 30 patients in the control group finally completed the study.At week 1,2 and 4 after the intervention,the scores of compliance behaviors were significantly higher in the intervention group (83.6 ± 9.3,85.9 ± 9.1,91.2 ± 8.4 respectively) than in the control group (77.1 ± 7.3,77.1 ± 8.6,79.1 ± 10.2 respectively;all P ＜ 0.05).Moreover,the scores of compliance behaviors significantly increased over time (P ＜ 0.05),and there was a significant interaction effect between the intervention methods and treatment duration (P ＜ 0.05).Conclusion Health education approaches including group medical visits and peer education can improve the compliance behaviors of patients with acne vulgaris.

Objective To evaluate the in vitro antibacterial activity of 12 antibacterial agents against clinically isolated Propionibacterium acnes (P.acnes).Methods Totally,100 strains of P.acnes were clinically isolated from Institute of Dermatology,Chinese Academy of Medical Sciences and Peking Union Medical College between August 2014 and April 2016.A broth dilution method was used to investigate the sensitivity rate of P.acnes isolates to 12 antibacterial agents including tetracycline,doxycycline,minocycline,erythromycin,roxithromycin,clarithromycin,azithromycin,trimethoprim,levofloxacin,chloramphenicol,clindamycin and fusidic acid,and determine the minimal inhibitory concentration (MIC) of the 12 antibacterial agents against P.acnes isolates.Results The MIC90 values of minocycline,doxycycline,levofloxacin,chloramphenicol,clindamycin,fusidic acid and tetracycline against P.acnes were 8,32,16,128,＞ 128,16 and ＞ 128 mg/L,respectively,and the sensitivity rates of P.acnes to the 7 antibacterial agents were 66％,36％,34％,17％,7％,6％ and 4％ respectively.Trimethoprim and azithromycin showed the MIC90 value of ＞ 128 mg/L and sensitivity rate of 3％.Erythromycin,roxithromycin and clarithromycin showed the MIC90 value of ＞ 128 mg/L and sensitivity rate of 0.Conclusion The clinically isolated P.acnes strains showed the highest sensitivity to minocycline,followed by doxycycline,levofloxacin,chloramphenicol,clindamycin,fusidic acid,tetracycline,trimethoprim and azithromycin,and were resistant to erythromycin,roxithromycin,and clarithromycin.

ObjectiveTo investigate the mechanism of Tangbikang dry paste in the prevention and treatment of type 2 diabetic peripheral neuropathy （DPN） based on the glyoxalase-1 （GLO-1）/advanced glycation end products （AGE）/receptor for advanced glycation end products （RAGE） pathway. MethodsA total of 56 Sprague-Dawley rats were randomly divided， with eight assigned to the normal group. The remaining 48 rats were fed a high-fat diet combined with intraperitoneal injection of streptozotocin （STZ） to induce a type 2 diabetes mellitus （T2DM） model. Based on blood glucose levels， the rats were randomly assigned to the model group， Tanglin group （13.5 mg·kg^-1）， metformin group （135 mg·kg^-1）， and Tangbikang dry paste low-， medium-， and high-dose groups （3， 6， 12 g·kg^-1）. Successful modeling of DPN was confirmed by a decrease in mechanical pain threshold in the model group at week 4. Fasting blood glucose， body weight， and mechanical pain threshold were measured every 4 weeks. After 16 weeks of intervention， the pathological morphology of the sciatic nerve was observed using hematoxylin-eosin （HE） staining. The expression of RAGE， AGE， protein kinase C （PKC）， and collagen （COL） in the sciatic nerve was assessed by immunohistochemistry. The mRNA expression of RAGE， PKC， Toll-like receptor （TLR）， COL， and GLO-1 was detected using real-time quantitative PCR （Real-time PCR）. Serum levels of aspartate aminotransferase （AST）， alanine aminotransferase （ALT）， creatinine （CREA）， urea （UREA）， interleukin-6 （IL-6）， and tumor necrosis factor （TNF）-α were measured by enzyme-linked immunosorbent assay （ELISA）. ResultsCompared with the normal group， the model group showed significantly increased fasting blood glucose （P<0.01）， decreased body weight and mechanical pain threshold （P<0.01）， and elevated serum AST， ALT， CREA， UREA， IL-6， and TNF-α levels （P<0.01）. The expression of RAGE， AGE， and PKC in the sciatic nerve was significantly increased （P<0.01）， while COL expression was decreased （P<0.01）. The mRNA expression of TLR， RAGE， and PKC was upregulated （P<0.01）， whereas COL and GLO-1 mRNA levels were downregulated （P<0.01）. Histological examination showed irregular nerve morphology， axonal alterations， and myelin degeneration. Compared with the model group， fasting blood glucose levels in the Tangbikang dry paste high-dose group at all time points and in the medium-dose group at weeks 4 and 16 were significantly reduced （P<0.05， P<0.01）. No significant changes in body weight were observed across all Tangbikang dose groups. The mechanical pain threshold was elevated at different time points after administration in all Tangbikang groups （P<0.05， P<0.01）. Serum IL-6 and TNF-α levels were decreased in all dose groups （P<0.05， P<0.01）. The expression of RAGE， AGE， and PKC in the sciatic nerve was reduced （P<0.01）， while COL expression was increased （P<0.01）. The mRNA expression of TLR， RAGE， and PKC was downregulated （P<0.01）， whereas GLO-1 mRNA expression was upregulated （P<0.05， P<0.01）. Additionally， COL mRNA expression was significantly increased in the low- and high-dose groups （P<0.01）. Pathological changes in the sciatic nerve were milder in all Tangbikang groups compared to the model group. ConclusionTangbikang dry paste significantly improves DPN， and its mechanism may be associated with the regulation of the GLO-1/AGE/RAGE signaling pathway.

ObjectiveTo investigate the mechanism of Tangbikang dry paste in the prevention and treatment of type 2 diabetic peripheral neuropathy （DPN） based on the glyoxalase-1 （GLO-1）/advanced glycation end products （AGE）/receptor for advanced glycation end products （RAGE） pathway. MethodsA total of 56 Sprague-Dawley rats were randomly divided， with eight assigned to the normal group. The remaining 48 rats were fed a high-fat diet combined with intraperitoneal injection of streptozotocin （STZ） to induce a type 2 diabetes mellitus （T2DM） model. Based on blood glucose levels， the rats were randomly assigned to the model group， Tanglin group （13.5 mg·kg^-1）， metformin group （135 mg·kg^-1）， and Tangbikang dry paste low-， medium-， and high-dose groups （3， 6， 12 g·kg^-1）. Successful modeling of DPN was confirmed by a decrease in mechanical pain threshold in the model group at week 4. Fasting blood glucose， body weight， and mechanical pain threshold were measured every 4 weeks. After 16 weeks of intervention， the pathological morphology of the sciatic nerve was observed using hematoxylin-eosin （HE） staining. The expression of RAGE， AGE， protein kinase C （PKC）， and collagen （COL） in the sciatic nerve was assessed by immunohistochemistry. The mRNA expression of RAGE， PKC， Toll-like receptor （TLR）， COL， and GLO-1 was detected using real-time quantitative PCR （Real-time PCR）. Serum levels of aspartate aminotransferase （AST）， alanine aminotransferase （ALT）， creatinine （CREA）， urea （UREA）， interleukin-6 （IL-6）， and tumor necrosis factor （TNF）-α were measured by enzyme-linked immunosorbent assay （ELISA）. ResultsCompared with the normal group， the model group showed significantly increased fasting blood glucose （P<0.01）， decreased body weight and mechanical pain threshold （P<0.01）， and elevated serum AST， ALT， CREA， UREA， IL-6， and TNF-α levels （P<0.01）. The expression of RAGE， AGE， and PKC in the sciatic nerve was significantly increased （P<0.01）， while COL expression was decreased （P<0.01）. The mRNA expression of TLR， RAGE， and PKC was upregulated （P<0.01）， whereas COL and GLO-1 mRNA levels were downregulated （P<0.01）. Histological examination showed irregular nerve morphology， axonal alterations， and myelin degeneration. Compared with the model group， fasting blood glucose levels in the Tangbikang dry paste high-dose group at all time points and in the medium-dose group at weeks 4 and 16 were significantly reduced （P<0.05， P<0.01）. No significant changes in body weight were observed across all Tangbikang dose groups. The mechanical pain threshold was elevated at different time points after administration in all Tangbikang groups （P<0.05， P<0.01）. Serum IL-6 and TNF-α levels were decreased in all dose groups （P<0.05， P<0.01）. The expression of RAGE， AGE， and PKC in the sciatic nerve was reduced （P<0.01）， while COL expression was increased （P<0.01）. The mRNA expression of TLR， RAGE， and PKC was downregulated （P<0.01）， whereas GLO-1 mRNA expression was upregulated （P<0.05， P<0.01）. Additionally， COL mRNA expression was significantly increased in the low- and high-dose groups （P<0.01）. Pathological changes in the sciatic nerve were milder in all Tangbikang groups compared to the model group. ConclusionTangbikang dry paste significantly improves DPN， and its mechanism may be associated with the regulation of the GLO-1/AGE/RAGE signaling pathway.