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| 1 | 乳糖酶研究进展显示文摘乳糖酶作为乳品添加剂,应用相当广泛,通过来源及其性质、基础研究和应用等方面对乳糖酶进行综述,重点介绍乳糖酶研究上的新进展和应用的新领域,由于近年来低温乳糖酶成为研究热点,特别对低温乳糖酶的研究进行介绍。 | 张敏文 顾取良 张博 李荷 | 2011 | 微生物学杂志2011，31，3： | 23 |
| 2 | Hypolactasia is associated with insulin resistance in nonalcoholic steatohepatitis显示文摘AIM To assess lactase gene(LCT)-13910C>T polymorphisms in Brazilian non-alcoholic fatty liver disease(NAFLD) and nonalcoholic steatohepatitis(NASH) patients in comparison with healthy controls.METHODS This was a transverse observational clinical study with NAFLD patients who were followed at the Hepatology Outpatient Unit of the Hospital das Clínicas, S?o Paulo, Brazil. The polymorphism of lactase non-persistence/lactase persistence(LCT-13910C>T) was examined by PCR-restriction fragment length polymorphism technique in 102 liver biopsy-proven NAFLD patients(steatosis in 9 and NASH in 93) and compared to those of 501 unrelated healthy volunteers. Anthropometric, clinical, biochemical and liver histology data were analyzed. Continuous variables were compared using the t or Mann-Whitney tests, and categorical data were compared with the Fisher's exact test. Univariate logistic regression and multivariate logistic regression adjusted for gender and age were performed.RESULTS No differences in the LCT-13910 genotype frequencies were noted between the NAFLD patients(66.67% of the patients with steatosis were CC, 33.33% were CT, and none were TT; 55.91% of the patients with NASH were CC, 39.78% were CT, and 4.3% were TT; P = 0.941) and the healthy controls(59.12% were CC, 35.67% were CT, and 5.21% were TT) or between the steatosis and NASH patients. That is, the distribution of the lactase non-persistence/lactase persistence polymorphism(LCT-13910C>T) in the patients with NAFLD was equal to that in the general population. In the NASH patients, the univariate analysis revealed that the lactase nonpersistence(low lactase activity or hypolactasia) phenotype was associated with higher insulin levels(23.47 ± 15.94 μU/m L vs 15.8 ± 8.33 μU/m L, P = 0.027) and a higher frequency of insulin resistance(91.84% vs 72.22%, P = 0.02) compared with the lactase persistence phenotype. There were no associations between the LCT genotypes and diabetes(P = 0.651), dyslipidaemia(P = 0.328), hypertension(P = 0.507) or liver histology in these patients. Moreover, in the NASH patients, hypolactasia was an independent risk factor for insulin resistance even after adjusting for gender and age [OR = 5.0(95%CI: 1.35-20; P = 0.017)].CONCLUSION The LCT-13910 genotype distribution in Brazilian NAFLD patients was the same as that of the general population, but hypolactasia increased the risk of insulin resistance in the NASH patients. | Daniel Ferraz de Campos Mazo Rejane Mattar Jose Tadeu Stefano Joyce Matie Kinoshita da Silva-Etto Marcio Augusto Diniz Sebastiao Mauro Bezerra Duarte Fabíola Rabelo Rodrigo Vieira Costa Lima Priscila Brizolla de Campos Flair Jose Carrilho Claudia P Oliveira | 2016 | World Journal of Hepatology2016，8，24： | 0 |
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