Objective To investigate the effects of angiotensinⅡ(AngⅡ), Benazepril(Bena) and Losartan on proliferation and collagen synthesis of cultured rat cardiac fibroblasts(CFb) derived from SHR (CFbSHR) and WKY (CFbWKY). Methods CFb derived from 12-week-old SHR and WKY was cultured by outgrowth of tissue block. Cell proliferation of CFb was determined by direct cell counting .3H-Proline incorporation of CFb was measured after incubation with AngⅡ,Bena and Losartan. Results In serum free(0.4%FCS) medium, cell number of CFb derived from SHR and WKY were not influenced by AngⅡ(10-10mol～10-6mol)and Bena(10-9mol～10-5mol). Increased 3H-proline incorporation wa s induced by AngⅡ in a concentration dependent manner. Benazepril caused an decrease in 3H-Proline incorporation in CFb derived from SHR and WKY. The increased collagen synthesis induced by AngⅡ(10-7mol) was inhibited by Losartan((10-10mol～10-6mol） i n a concentration dependent manner. Conclusion Proliferation of CFb were not influenced by AngⅡ and Bena. Collagen synthesis of CFb was promoted by AngⅡ and inhibited by Bena. Collagen synthesis of CFb in duced by AngⅡ was inhibited by losartan.

AIM: To investigate the effects of fibronectin (FN) on the proliferation and collagen synthesis in cultured rat cardiac fibroblasts (CFb) derived from SHR (CFb SHR ) and WKY (CFb WKY ). METHODS: CFb derived from 12-week-old spontaneously hypertensive rat (SHR) and WKY was cultured by outgrowth of tissue block. Cell proliferation of CFb was measured by cell number counting and [ 3H]-TdR incorporation using 24-well plates pre-coated with 5 ?g/cm 2 of FN. Collagen synthesis was determined by [ 3H]-proline incorporation. RESULTS: As compared with control, the cell number of fibroblasts derived from SHR and WKY were significantly increased to 163.75% and 170.42% respectively after 72 h incubation with FN in the presence of 0.4% FCS from a intial cell density of 1?10 4 cells/mL. DNA synthesis of CFb was markedly promoted by FN [CFb SHR : ( 44?734 ? 8?981 )counts/min vs ( 29?233 ? 6?746 ) counts/min, P

Objective Investigate the clinicopathological characteristics of h?rthle cell tumors of the thyroid. Methods Sixteen cases of HCT were studied by the clinicopathological study and immunohistochemical and review of the literature. Results There were 13 cases of h?rthle cell adenomas, 5 h?rthle cell follicular carcinomas. Immunostains showed that almost all benign and malignant HCT expressed TG, vimentin, S-100 protein. Conclusions HCT is a potential malignant tumor with a defined pathologic feature. It should be follow up for a longer time to their biological behaviors. To distinguish between the benign and the malignant depends on traditional encapsulation, and whether there is a blood vessel invasion or metastasis.

Objective To investigate the effects of Kruppel-like factor 6 (KLF6) on the apoptotic and migration ability of HepG2 cell, and the developmental role of KLF6 on zebrafish liver.Methods Constructed plasmid with shRNA-KLF6 was transfected in HepG2 and L-02.The impacts of loss of KLF6 on HepG2 was investigated by Western bolt, apoptosis analyses, cell cycle detection and scratch experiment;KLF6 morpholino oligonucleotides was microinjected into the Tg(lfabp:eGFP) transgenic zebrafish embryos.The morphant phenotype of the liver was imaged and the protein expression of KLF6 after knockdown of KLF6 was analyzed by Immunofluorescence staining.Results The expression of KLF6 in L-02 was significantly higher than in HepG2.After knockout of KLF6, KLF6 protein expression and apoptosis were significantly reduced.In addition, the cell cycle mainly stated in S phase and the migration ability of HepG2 was enhanced.After klf6 knockdown in transgenic zebrafish larvae, the development of zebrafish liver was delayed and KLF6 expression was obviously decreased in the liver.Conclusions The reduction of KLF6 expression increased the proliferation and migration ability, and reduced the apoptosis of HepG2.Loss of KLF6 affects the development of zebrafish liver, which may open a possibility to use zebrafish as a liver cancer model and for anti-liver cancer drug screening.

Objective:To explore the application effect of the flipped micro-lecture teaching mode in the teaching of medical biochemistry.Methods:A total of 115 clinical medicine students in Batch 2016 from Zhejiang Chinese Medical University were selected as the experimental group, and 120 stomatology students were selected as the control group. Teachers applied the "before-class, in-class, after-class" serial design to conduct flipped micro-lecture in the experimental group, and the traditional teaching was used in the control group. We evaluated the teaching effect through self-directed learning tests and questionnaire survey after the teaching experiment.Results:Flipped micro-lecture teaching improved students' learning effect, enhanced their learning enthusiasm, gradually led them into autonomous learning of medical biochemistry, and improved their team collaboration ability.Conclusion:The combination of Flipped Classroom and micro-lecture is of great significance to promote the transformation of curriculum education modes and cultivate innovative medical talents.

CD146 Antigen ; metabolism ; Humans ; Pericytes ; cytology ; metabolism ; Receptor, Platelet-Derived Growth Factor beta ; metabolism