Lack of association between common single nucleotide polymorphisms in the TERT-CLPTM1L locus and breast cancer in women of African ancestry

As one of the most common cancers worldwide, breast cancer places an extraordinary burden on the populations of African ancestry. Common SNPs in the TERT-CLPTM1L locus have been reported to be associated with several types of cancer, including breast cancer. We sought to investigate whether the previously reported common single nucleotide polymorphisms (SNPs) in the TERT-CLPTM1L locus could also contribute to the breast cancer risk in women of African ancestry. We genotyped eleven SNPs in 2,892 women of African descent but were unable to detect any significant association between TERT-CLPTM1L SNPs and their predispositions for breast cancer risk. Given the differences in linkage disequilibrium patterns across populations, our findings suggest that larger independent studies from diverse populations are expected to evaluate the importance of the TERT-CLPTM1L locus in breast cancer.     

SGK3 is associated with estrogen receptor expression in breast cancer

While breast cancer mortality rate has seen a steady decline in the last few decades, advances in better treatment and diagnostic tools remain important as we come into the age of personalized therapy. In this report, we describe our studies of SGK3's role in breast cancer. SGK3 (also known as CISK) is a member of the AGC family of kinases. Our previous work indicates that SGK3 functions downstream of the PI 3-kinase cascade and shares molecular and biochemical similarities with Akt. Here, we show that SGK3 expression is linked to estrogen receptor (ER) both in breast caner cell lines and in primary tumor samples. Our analysis also indicated a positive correlation between SGK3 expression and tumor prognosis. Importantly, our immunochemistry analysis of human tumor samples established a clinical link between SGK3 expression and ER+ tumors. These findings implicate SGK3 as an additional component to a complex and heterogeneous disease, and point to the potential benefits of incorporating SGK3 into the process of breast cancer diagnosis and treatment.     

Defining a Subgroup Treatable for Laparoscopic Surgery in Poorly Di.erentiated Early Gastric Cancer: the Role of Lymph Node Metastasis

T Objective The present study aims to identify the clinicopathologic factors predictive of lymph node metastasis (LNM) in poorly differentiated early gastric cancer (EGC) and to expand the possibility ...     

Genome comparisons reveal a dominant mechanism of chromosome number reduction in grasses and accelerated genome evolution in Triticeae

Single-nucleotide polymorphism was used in the construction of an expressed sequence tag map of Aegilops tauschii, the diploid source of the wheat D genome. Comparisons of the map with the rice and sorghum genome sequences revealed 50 inversions and translocations; 2, 8, and 40 were assigned respectively to the rice, sorghum, and Ae. tauschii lineages, showing greatly accelerated genome evolution in the large Triticeae genomes. The reduction of the basic chromosome number from 12 to 7 in the Triticeae has taken place by a process during which an entire chromosome is inserted by its telomeres into a break in the centromeric region of another chromosome. The original centromere–telomere polarity of the chromosome arms is maintained in the new chromosome. An intrachromosomal telomere–telomere fusion resulting in a pericentric translocation of a chromosome segment or an entire arm accompanied or preceded the chromosome insertion in some instances. Insertional dysploidy has been recorded in three grass subfamilies and appears to be the dominant mechanism of basic chromosome number reduction in grasses. A total of 64% and 66% of Ae. tauschii genes were syntenic with sorghum and rice genes, respectively. Synteny was reduced in the vicinity of the termini of modern Ae. tauschii chromosomes but not in the vicinity of the ancient termini embedded in the Ae. tauschii chromosomes, suggesting that the dependence of synteny erosion on gene location along the centromere–telomere axis either evolved recently in the Triticeae phylogenetic lineage or its evolution was recently accelerated.     

正交设计筛选独一味和高乌甲素抗炎镇痛作用的最佳配比

目的:研究独一味和高乌甲素抗炎镇痛作用最佳配比。方法:采用小鼠醋酸扭体反应、小鼠水浴甩尾反应和小鼠巴豆油性耳肿试验,对独一味和高乌甲素进行正交优化试验,用金氏概率相加法研究不同剂量、不同比例的独一味和高乌甲素互相作用关系。结果:与模型对照组相比,独一味和高乌甲素单用均可以减少小鼠醋酸扭体次数(P<0.05),延长小鼠水浴甩尾反应潜伏期(P<0.05)和抑制小鼠耳廓肿胀度(P<0.05),起效剂量分别为56.25 mg/kg和0.375mg/kg。独一味与高乌甲素合用组可显著减少小鼠醋酸扭体次数(P<0.05,P<0.01),延长小鼠水浴甩尾反应潜伏期(P<0.05,P<0.01),明显抑制小鼠耳廓肿胀度(P<0.05,P<0.01),其中独一味和高乌甲素的配比为56.25:0.375抗炎镇痛作用最好。结论:高乌甲素与独一味联合使用,可减少高乌甲素的剂量,而镇痛效果不降低,在抗炎试验中,独一味与高乌甲素合用,可增强单独用药效果,也有增效作用。     

健胃消胀颗粒对功能性消化不良患者胃排空的影响

目的:观察健胃消胀颗粒治疗功能性消化不良(肝胃不和型)的临床疗效和安全性,以及应用健胃消胀颗粒前后功能性消化不良(FD)患者的胃排空的变化.方法:将60例FD患者随机分成两组,治疗组服用健胃消胀颗粒,对照组采用吗丁啉观察两组疗效.结果:治疗组有效率为93.33%,对照组有效率为76.67%,治疗组疗效明显高于对照组(P<0.05).治疗前两组钡条排空率无显著差异(P>0.05),治疗后两组排空率及有显著差异(P<0.05).结论:健胃消胀颗粒能明显改善FD患者的主要临床症状优于西药吗叮淋治疗.健胃消胀颗粒能明显提高FD患者的钡条排空率,促进胃动力.