Summary： Recent studies have demonstrated that the BRAFv600E mutation is associated with aggres- sive clinicopathological features of papillary thyroid carcinoma （PTC）. However, the BRAF mutation as a prognostic bi...Summary： Recent studies have demonstrated that the BRAFv600E mutation is associated with aggres- sive clinicopathological features of papillary thyroid carcinoma （PTC）. However, the BRAF mutation as a prognostic biomarker in papillary thyroid microcarcinoma （PTMC） is unclear. A systematic search of the electronic databases, including Medline, Scopus, CNKI and the Cochrane Library was performed up to July 1, 2014. Outcomes of interest included age, gender, concomitant hashimoto thyroiditis or nodular goiter, tumor size, pathological stage, tall cell variant of PTMC （TCVPTMC）, multifocality, extrathyroidal extension （ETE） and lymph node metastasis （LNM）. A total of 19 studies published from 2008 to 2014 comprising 2253 patients fulfilled the inclusion criteria and were in- cluded in the meta-analysis, and 1143 （50.7%） of these patients were BRAF mutation positive. BRAF mutation was associated with larger tumor size （OR： 1.64; 95% CI： 1.16-2.32）, multifocality （OR： 1.58; 95% CI： 1.25-2.00）, ETE （OR： 2.59; 95% CI： 2.03-3.29）, LNM （OR： 1.73; 95% CI： 1.14-2.62）, advanced stage （OR： 2.03; 95% CI： 1.14-3.64） and TCVPTMC （OR： 5.07; 95% CI： 1.49-17.27; P=0.009）. Additionally, the BRAF mutation was found to be not associated with age, gender, con- comitant hashimoto thyroiditis or nodular goiter （P〉0.05 for all）. This meta-analysis revealed that in patients with PTMC, BRAF mutation is associated with tumor size, multifocality, ETE, LNM, ad- vanced stage and TCVPTMC, and it may be used as a predictive factor for prognosis of PTMC.展开更多
目的观察追赶生长模型中摄食相关激素生长激素(GH)、胰岛素样生长因子-1(IGF-1)、胃饥饿素(ghrelin)、胆囊收缩素(CCK)和瘦素(leptin)的变化,探讨其在追赶生长发生中的作用。方法 48只5周龄雄性SD大鼠适应性喂养1周后,随机分为对照组(NC...目的观察追赶生长模型中摄食相关激素生长激素(GH)、胰岛素样生长因子-1(IGF-1)、胃饥饿素(ghrelin)、胆囊收缩素(CCK)和瘦素(leptin)的变化,探讨其在追赶生长发生中的作用。方法 48只5周龄雄性SD大鼠适应性喂养1周后,随机分为对照组(NC)和限食后追赶生长组(CUGRF)。NC组给予自由进食,CUGRF组给予同龄NC组进食量的60%,6周后开放自由进食。开放进食0、8、12周和16周时以酶联免疫吸附法(ELISA)测定GH、IGF-1、ghrelin、leptin、CCK等指标。结果从开放进食第14周开始CUGFR组体重追赶上NC组,差异无统计学意义(P>0.05)。两组间血清IGF-1、ghrelin、CCK浓度在各检测时间点差异均无统计学意义(均P>0.05);CUGFR组GH在限食6周后显著升高[CUGFR vs NC,(30.96±4.42)μg/L vs(21.07±4.81)μg/L,P<0.05],而leptin在限食6周后显著降低[(CUGFR vs NC,(2.63±0.57)μg/L vs(4.45±0.40)μg/L,P<0.05]。结论大鼠限食后追赶生长模型属完全追赶生长,在追赶生长大鼠模型中GH、leptin分泌水平有显著变化,并可能与CCK等能量平衡调节因子共同参与了脂肪沉积、胰岛素抵抗状态的形成以及糖代谢障碍。展开更多
文摘Summary： Recent studies have demonstrated that the BRAFv600E mutation is associated with aggres- sive clinicopathological features of papillary thyroid carcinoma （PTC）. However, the BRAF mutation as a prognostic biomarker in papillary thyroid microcarcinoma （PTMC） is unclear. A systematic search of the electronic databases, including Medline, Scopus, CNKI and the Cochrane Library was performed up to July 1, 2014. Outcomes of interest included age, gender, concomitant hashimoto thyroiditis or nodular goiter, tumor size, pathological stage, tall cell variant of PTMC （TCVPTMC）, multifocality, extrathyroidal extension （ETE） and lymph node metastasis （LNM）. A total of 19 studies published from 2008 to 2014 comprising 2253 patients fulfilled the inclusion criteria and were in- cluded in the meta-analysis, and 1143 （50.7%） of these patients were BRAF mutation positive. BRAF mutation was associated with larger tumor size （OR： 1.64; 95% CI： 1.16-2.32）, multifocality （OR： 1.58; 95% CI： 1.25-2.00）, ETE （OR： 2.59; 95% CI： 2.03-3.29）, LNM （OR： 1.73; 95% CI： 1.14-2.62）, advanced stage （OR： 2.03; 95% CI： 1.14-3.64） and TCVPTMC （OR： 5.07; 95% CI： 1.49-17.27; P=0.009）. Additionally, the BRAF mutation was found to be not associated with age, gender, con- comitant hashimoto thyroiditis or nodular goiter （P〉0.05 for all）. This meta-analysis revealed that in patients with PTMC, BRAF mutation is associated with tumor size, multifocality, ETE, LNM, ad- vanced stage and TCVPTMC, and it may be used as a predictive factor for prognosis of PTMC.
文摘目的观察追赶生长模型中摄食相关激素生长激素(GH)、胰岛素样生长因子-1(IGF-1)、胃饥饿素(ghrelin)、胆囊收缩素(CCK)和瘦素(leptin)的变化,探讨其在追赶生长发生中的作用。方法 48只5周龄雄性SD大鼠适应性喂养1周后,随机分为对照组(NC)和限食后追赶生长组(CUGRF)。NC组给予自由进食,CUGRF组给予同龄NC组进食量的60%,6周后开放自由进食。开放进食0、8、12周和16周时以酶联免疫吸附法(ELISA)测定GH、IGF-1、ghrelin、leptin、CCK等指标。结果从开放进食第14周开始CUGFR组体重追赶上NC组,差异无统计学意义(P>0.05)。两组间血清IGF-1、ghrelin、CCK浓度在各检测时间点差异均无统计学意义(均P>0.05);CUGFR组GH在限食6周后显著升高[CUGFR vs NC,(30.96±4.42)μg/L vs(21.07±4.81)μg/L,P<0.05],而leptin在限食6周后显著降低[(CUGFR vs NC,(2.63±0.57)μg/L vs(4.45±0.40)μg/L,P<0.05]。结论大鼠限食后追赶生长模型属完全追赶生长,在追赶生长大鼠模型中GH、leptin分泌水平有显著变化,并可能与CCK等能量平衡调节因子共同参与了脂肪沉积、胰岛素抵抗状态的形成以及糖代谢障碍。
