Objective To evaluate the relationship between the single nucleotide polymorphisms (SNPs) of the adiponectin gene +45 in exon 2 and type 2 diabetes mellitus (T2DM) in Chinese population via meta-analysis. Methods Databases including PubMed, Ovid, CBM, VIP, CNKI, and WanFang Data were searched from inception to June 2012, and the references of articles were also retrieved to collect case-control studies about the correlation of SNPs of the adiponectin gene +45 in exon 2 and T2DM in Chinese population. According to the self-designed inclusion and exclusion criteria, two reviewers screened articles, extracted data, and assessed the quality of the included studies independently. Then meta-analysis was performed STATA 11.0, with stability evaluated by both stratified analysis and sensitivity analysis. Moreover, Begg’s funnel plot and Egger’s method were used to assess the published bias of articles. Results 21 articles involving 22 studies were included (3272 T2DM cases and 2597 controls). There were significant differences between the two groups in dominant, recessive and addictive genetic models, and the pooled ORs (95% CI) were 1.36 (1.04, 1.78), 2.07 (1.55, 2.75), and 2.44 (1.59, 3.75), respectively. Conclusion The genetic single nucleotide polymorphisms of the adiponectin +45 in exon 2 is associated with type 2 diabetes in Chinese population. G allele of APM1 is a risk factor for type 2 diabetes, no matter in dominant, recessive or addictive genetic models.
Objective To systematically evaluate the preventative effect of probiotics for infantile eczema and atopic eczema. Methods Databases including PubMed, EMbase, MEDLINE (Ovid), CENTRAL, CBM and CNKI were searched from inception to February 2012, so as to collect the randomized controlled trials (RCTs) on probiotics in preventing infantile eczema and atopic eczema. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data, evaluated quality and cross-checked. Then the meta-analysis was conducted using RevMan 5.0 software. Result A total of 15 RCTs involving 3 179 infants were included. The results of meta-analyses on 8 high quality RCTs showed that: the incidence of infantile eczema was lower in the probiotics group than the placebo group, with a significant difference (RD=–0.06, 95%CI –0.10 to –0.03, Plt;0.05). Probiotics had no preventative effect on infantile atopic eczema (RD=–0.02, 95%CI –0.08 to 0.03, Pgt;0.05), and had preventative effects on both high risk population (RD=–0.09, 95%CI –0.15 to –0.03, Plt;0.05) and general population (RD=–0.05, 95%CI –0.10 to 0.00, Plt;0.05) of infantile eczema. Conclusion Probiotics have certain preventative effects on infantile eczema. Due to the differences of probiotics in the aspects such as probiotic strain, dosage, treatment course, etc., its specific effects on infantile eczema and atopic eczema should be further tested.
Objective To investigate effects of fast track surgery (FTS) combined with laparoscopy on perioperative inflammatory mediators, immune indices, and clinical short-term recovery effect in patient with colorectal cancer. Methods A prospective randomized controlled trial was conducted. The patients underwent laparoscopic colorectal cancer surgery at the Department of Gastrointestinal Surgery, The Third People’s Hospital of Chengdu from July 2014 to March 2017 were included in this study. The patients were randomly divided into FTS group and traditional group by the random digital table. The FTS mode and the traditional method were adopted during the perioperative period in the FTS group and the traditional group respectively. The inflammatory mediators such asC reactive protein (CRP) and interleukin 6 (IL-6) and cellular immune indexes such as CD4, CD8 and CD4/CD8 on the preoperative 1 d, postoperative 1 d, 3 d and 7 d, as well as the index of clinical short-term rehabilitation were compared between these 2 groups. Results ① Eighty-four patients were included in this study, there were 43 patients in the FTS group and 41 patients in the traditional group. There were no significant differences in the baseline characteristics and the surgical-related indicators between the two groups (P>0.050). ② There were no significant difference in the levels of CRP and IL-6 between the two groups at different time points (P>0.050). The change trend of CRP and IL-6 levels in FTS group and traditional group before and after operation were the same, the CRP and IL-6 levels at the first day after operation were significantly higher than those on 1 d before operation (P<0.001), but on the 7th day after operation decreased significantly. ③ There were no significant difference of CD4, CD 8 and CD4/CD8 levels between the two groups at different time points (P>0.050). The CD4 decreased significantly in 2 groups at the first day after operation (P<0.050), it began to rise on the 3rd day after operation and was close to the preoperative level on the 7th day after operation, but the increase in the traditional group was smaller. The changes of CD8 level at different time points before and after operation were not significant in two groups (P>0.050). The changes of CD4/CD8 ratio at different time points before and after operation were not significant in two groups (P>0.050), only the first day after operation of FTS group was significantly lower than that in preoperative 1 d (P<0.001), and on the third day after operation, it increased significantly and was close to the level of 1 day before operation. ④ The time of the first postoperative anal exhaustion or defecation in the FTS group was significantly shorter than that in the traditional group (P<0.001). The overall incidence of postoperative complications and the incidence of hypoproteinemia in the FTS group were significantly lower than those in the traditional group (P<0.050). Conclusion Compared with traditional perioperative management in combination with laparoscopic surgery, FTS combined with laparoscopic surgery has no effects on postoperative inflammatory mediators and immune parameters in patient with colorectal cancer, and it could reduce complications, reduce traumatic stress, and accelerate postoperative recovery for patient with colorectal cancer.
ObjectiveTo investigate whether there is a causal relationship between reproductive history (number of children, age at first birth) and the risk of hormone-related cancers (breast, endometrial, and ovarian) in women. MethodsUnivariate and multivariate Mendelian randomization (MR) methods were used to investigate the causal effects of the number of children (childlessness in infertile women and number of children ever born in fertile women) and age at first birth on three hormone-related cancers. The inverse variance weighting method was used for the primary analysis, and sensitivity analyses and reliability tests were used to ensure the reliability of the results. ResultsUnivariate MR showed that infertile women had a higher risk of breast cancer compared with fertile women (OR=1.07, 95%CI 1.05 to 1.09, P<0.001). Multivariate MR showed that among fertile women, after accounting for the effect of age at first birth, higher number of children ever born may be associated with lower risk of breast cancer (OR=0.61, 95%CI 0.43 to 0.85, P<0.01). Neither univariate nor multivariate MR found a causal relationship between age at first birth and hormone-related cancers, and no causal relationship was found between the number of children ever born and endometrial and ovarian cancers; sensitivity analyses and reliability tests demonstrated that the results were unlikely to be affected by heterogeneity and horizontal pleiotropy. ConclusionThe more children a normal woman has, the lower her risk of breast cancer. Infertile women face a higher risk of breast cancer.