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Microb Pathog ; 137: 103769, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31580959


BACKGROUND: To clarify the impact of IL-1B gene polymorphisms (IL-1B-511C/T, IL-1B-31C/T, IL-1B+3954C/T) in Helicobacter pylori (H. pylori) infection by mean of a meta-analysis. METHODS: The relevant studies were retrieved from PubMed, Web of Science, EMBASE, Cochrane Library, Chinese National Knowledge Infrastructure (CNKI) and Wanfang databases until September 9, 2018. Odds ratio (OR) and its 95% confidence intervals (CIs) were used to assess the associations. Statistical analyses of this meta-analysis were conducted by using STATA 12 software. RESULTS: Totally, 45 articles including 9606 cases and 5654 controls were enrolled in this meta-analysis. Our results indicated that IL-1B-511C/T polymorphism was significantly related to an increased the risk of H. pylori infection under recessive model (OR = 1.13, 95% CI: 1.00-1.27, P = 0.048). However, no significant associations were obtained between H. pylori infection and IL-1B-31C/T as well as IL-1B+3954C/T polymorphisms under all models. In addition, subgroup analyses were also performed by country, study design, and detection methods of H. pylori. CONCLUSIONS: This meta-analysis suggested that IL-1B-511C/T polymorphism was related to the risk of H. pylori infection. Further larger studies with high quality are needed to conform these findings.

Ying Yong Sheng Tai Xue Bao ; 19(10): 2155-60, 2008 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-19123349


With sand culture in greenhouse, this paper studied the effects of inoculation with arbuscular mycorrhizal (AM) fungi Glomus mosseae and G. versiforme on the utilization of insoluble phosphate AlPO4 (Al-P) by trifoliate orange (Poncirus trifoliata) seedlings. The results indicated that inoculation with AM fungi notably increased the dry matter, P content, and P absorption rate of P. trifoliata. The contribution of mycorrhiza, P uptake by plant and AM fungi, and the contribution of AM fungi in P uptake by P. trifoliata increased greatly with increasing Al-P level in the medium. Inoculation with AM fungi greatly increased the excretion of phosphatase, especially acid- and neutral phosphatase, from plant root and hyphae, but the excretion amount decreased with increasing Al-P level. The contribution of the fungi in P uptake by P. trifoliata was significantly positively correlated with the amounts of acid-, neutral-, alkaline-, and total phosphatase.

Compostos de Alumínio/metabolismo , Micorrizas/fisiologia , Fosfatos/metabolismo , Poncirus/metabolismo , Poncirus/microbiologia , Absorção , Ambiente Controlado , Micorrizas/crescimento & desenvolvimento , Monoéster Fosfórico Hidrolases/metabolismo , Raízes de Plantas/microbiologia