Medical parasitology education has been facing some difficulties because it is a course of wide range lacking clini?cal cases and concerned specimens of parasites currently. In addition its relationship with life is not closely enough. All these reasons may impact the effect of class education negatively. Therefore it is important to increase the vitality of parasitology edu?cation and diversify the instructional mode by using the resources from Internet. In recent years the Discovery Channel has up?loaded a documentary Monsters Inside Me online. This documentary is high professional and closely linked with parasitology. It maintains numbers of clinical cases about parasitic diseases. Each episode is about 3 minutes and shortly enough to be intro?duced into class teaching. However this resource has not been fully used in domestic temporally. We found that direct introduc?tion of the documentary into class teaching can enrich teaching forms to attract learning interest of students and finally improve the teaching effect of class. Above that another popular documentary A Bite of China involves many related knowledge points of parasitology. The appropriate usage of the knowledge can build up close linkage between book and life which is extremely help?ful to give students a deep impression of parasitology. In brief it is our strong recommendation to introduce the documentary Monsters Inside Me into class.

This paper elaborated the research progress on transduction mechanisms of obese polycystic ovary syndrome (PCOS) and insulin resistance (IR). The action mechanisms of kidney-tonifying, spleen-invigorating and phlegm-resolving in the treatment of obese PCOS and IR were explored. It provided new ideas for the treatment of obese PCOS patients in the clinical practice of traditional Chinese medicine (TCM) gynecology. Literatures on TCM theories and modern signal pathways were used in the analysis of spleen-kidney deficiency and phlegm-dampness retention, which were the key pathogenesis of obese PCOS and IR. The scientific nature of treating obese PCOS and IR from the method of kidney-tonifying, spleen-invigorating and phlegm-resolving was demonstrated. The results showed that the scientific nature of treating obese PCOS and IR from the method of kidney-tonifying, spleen-invigorating and phlegm-resolving was initially demonstrated by the organic combination of TCM and modern medicine theories. It innovatively proposed that the treatment study strategy of transduction molecular mechanism took the interactive dialogue between PI-3K/Akt signal pathway and TNF-α signal pathway as its target. The regulatory role and action mechanism of this method in the treatment of obese PCOS and IR were discussed.

This study was aimed to establish and evaluate obese polycystic ovary syndrome (PCOS) rat model. Rats were randomly divided into the blank control group, high-fat model group, insulin (INS) combined human chorionic gonadotropin (HCG) model group, and INS combined HCG plus high fat emulsion model group. The obese PCOS rat model was induced by subcutaneous injection of INS and HCG on the nape, respectively. The intragastric administration of high fat emulsion was also used in the PCOS rat model establishment. The estrous cycle of rat was monitored. The detection was also made the weight increasing rate of rats, luteinizing hormone (LH), follicle-stimulating hormone (FSH), estradiol (E2), testosterone (T), high-density lipoprotein (HDL), low density lipoprotein (LDL), triglyceride (TG), cholesterol (TC), fasting plasma glucose (FPG), fasting insulin (FINS), 2 h blood glucose and 2 h INS. Calculation was made on the HOMA index, related viscera index and bilateral ovaries HE staining. The results showed that when INS combined HCG improved method (INS combined HCG plus high fat emulsion model group) rats were sacrificed, the body weight, weight increasing rate, ovary viscera index, T, LH, and HOMA index were significantly higher than that of the blank control group, high-fat model group and INS combined HCG model group (P < 0.05,P < 0.01); HDL was significantly decreased (P < 0.05,P < 0.01). FPG, FINS, and 2 h INS of the INS combined HCG improved method group were significantly higher than that of the high-fat model group (P <0.01). It was concluded that INS combined HCG improved method was one of the ideal animal model establishment methods in the pathogenesis study of PCOS.

Objective : To analyze the prevalence and influencing factors of leprosy reactions in Zhejiang Province from 2010 to 2019, so as to provide reference for the control of leprosy. Methods: Through the national leprosy management system, the new leprosy cases in Zhejiang Province from 2010 to 2019 were recruited to analyze the incidence of leprosy reactions in different demographic characteristics and leprosy clinical features. The multivariate logistic regression analysis was conducted to explore the influencing factors for leprosy reactions. Results : Totally 191 leprosy cases were investigated. The incidence rate of leprosy reactions was 29.32%; the the incidence rate of typeⅠand type Ⅱreaction was 16.75% and 9.42%, respectively. There were 33 leprosy reaction cases (58.93%) before multidrug therapy (MDT) , 13 cases (23.21%) during 0-6 months of MDT, 5 cases (8.93%) during 7-12 months of MDT, 3 cases (5.36%) during over 12 months of MDT, and 2 cases (3.57%) after MDT. The results of the multivariate logistic analysis showed that the cases who were 35 years old or below (OR=2.245, 95%CI: 1.006-5.008) , were not floating population (OR=3.442, 95%CI: 1.394-8.494) , were infected outside family (OR=3.878, 95%CI: 1.075-13.993) and were smear positive (>0+,OR=4.514, 95%CI: 1.365-14.926; >3+,OR=4.727, 95%CI: 1.443-15.485) were risk factors for leprosy reactions. Conclusions The prevalence of leprosy reactions is high in Zhejiang Province from 2010 to 2019, and is associated with age, floating population, source of infection and BI.

Objective: To optimize the construction of combined hypoxia NASH rat model on the basis of preliminary work, and to explore the role of neovascularization in the process of hepatic fibrosis. Methods: 32 rats were divided randomly to four groups that were null control group(A group ), hypoxia group(B group), high fat diet group(C group ) and high fat diet plus hypoxia group (D group ),treated with null , Intraperitoneal injection of NaNO₂, high fat diet and high fat diet plus Intraperitoneal injection of NaNO₂ respectively. Every group was observed for 16 weeks, B and D group was treated with Intraperitoneal injection of NaNO₂ 20 mg/kg.d at the laster 8 weeks. Liver histology NASH activity score(NAS) and Fibro score(FibroS), biochemical index were detected in this combined hypoxia NASH rat model(D group), meanwhile the changes of HIF1α, inflammatory factor and neovascularization were measured by ELISA, realtime PCR and immunohistochemistry. Results: Liver tissue NAS > 4 was seen in C and D group. D group showed NASH characteristics, including significantly steatosis at liver acinar 3 area(mostly a microvesicular type fat droplets mixed with macrovesicular type), hepatocyte balloon degeneration, obvious lobular inflammation, while fibrosis score increased significantly, including visible hepatic sinusoid fibrosis, fibrosis around portal vein, and bridging fibrosis in a considerable portion of the rats. Compared with C group, biochemical indicators of aspartate aminotransferase (AST), HIF1α, neovascularization-related VEGFA, VEGFR2 mRNA level increased obviously and the expression of immunohistochemistry VEGFR2, CD34 enhanced markedly in D group(p < 0.05). Conclusion A combined hypoxia NASH rat model can be established throught feeding 16 weeks’ high-fat diet then intraperitoneal injection of NaNO₂ 20 mg / kg.d at the laster 8 weeks, meanwhile chronic hypoxia can accelerate this combined hypoxia NASH model liver fibrosis process. In this process neovascularization promoted the formation of hepatic fibrosis in this model.