简介：T房间受体贝它链的侧面变量(TRBV)基因通常与病毒感染或癌症在题目扭曲。融化的基因光谱模式(GMSP)能被用来决定TRBV基因家庭的侧面。从从尖锐肝炎B病毒感染(AHI)恢复了的题目在外部血淋巴细胞探索TRBV家庭的肖像，外部血mononuclear房间(PBMC)被分开并且进一步排序+和CD8+T房间子集进CD4。TRBV的分子的特征补足的决定区域3(CDR3)主题用GMSP分析被决定。当GMSP侧面显示出一座单个山峰时，monoclonally扩展的TRBV基因被克隆并且定序。多重TRBV基因的扭曲的扩大在CD4+和CD8+T房间子集和PBMC之中被观察。在CD8+T房间子集的monoclonally扩展的TRBV基因的频率比CD4+T房间子集和PBMC的显著地高。比作TRBV基因家庭，TRBV11，BV15和BV20的另外的成员主要在恢复AHI题目在外部血淋巴细胞的全部剧目被表示。TRBV5.1和BV20CDR3的相对保存的氨基酸主题也在CD4+和CD8+T房间子集被检测。这些结果在恢复AHI题目表明多重偏导的TRBV家庭的存在。特别从CD8+T房间子集，TRBV11，BV15和BV20可能与有AHI的题目的致病相关。有相对保存的CDR3主题的优先地选择的TRBV5.1和BV20可以是为长期的HBV感染的个性化的处理的潜在的目标。

简介：六新光学地活跃并且flame-retardant(amide-imide)poly，在主要的链作为一个flame-retardant单位包含磷化氢氧化物一半的s白族5a鈥?f从六chiralN的直接polycondensation反应被综合，有二度(3-aminophenyl)的N鈥?(pyromellitoyl)-bis-L-amino酸3a鈥?f在中等在于的苯基磷化氢氧化物4N-methyl-2-pyrrolidone(NMP)，triphenyl亚磷酸盐(TPP)，钙氯化物(CaCl2)和pyridine。生产的聚合反应一系列光学地活跃poly(amide-imide)有好产量和0.34鈥?.70dLg的好固有的粘性的s?1。结果的聚合物充分借助于FTIR和1H-NMR光谱学，胶化浸透层析(GPC)，元素的分析，固有的粘性和溶解度测试被描绘。热性质和白族5a鈥?f的flame-retardant行为被调查使用热gravimetric分析(TGA和DTG)并且限制氧索引(LOI)。热分析(TGA和DTG)获得的数据表明这些聚合物显示出好热稳定性。而且，在TGA的高字符产量和好LOI值显示产生聚合物能够展出好火焰retardant性质。N，N鈥?(pyromellitoyl)-bis-L-amino酸3a鈥?f被pyromelliticdianhydride(1,2,4,5-benzenetetracarboxylicacid-1,2,4,5-dianhydride)的冷凝作用反应在量的收益准备1与L丙氨酸2a，L缬氨酸2b，L白氨酸2c，L异白氨酸2d，L苯基丙氨酸2e和L-2-aminobutyric在醋酸的酸2f答案。关键词光学地活跃-Flame-retardant聚合物-Poly(amide-imide)s-限制氧索引

简介：许多病毒的epitope在匹配MHC的个人的特定的T房间受体(TCR)被表明了在链包含保存氨基酸主题决定补充的区域3(CDR3)。然而，保存主题是否能也在TCR链被发现，不肯定。在以前的研究，我们开发了一个修改方法扩大cytomegalovirus(CMV)的百分比pp65在由在vitro的连续的肽刺激的PBMC的肽特定的CD8+T房间，它为察觉提供特定的T房间的足够的数字。在这研究，我们进一步分析了TCRV和V基因家庭的限制用法并且调查了pp65的CDR3基因顺序肽特定的CD8+T房间。CDR3spectratypes的分析建议了TCR链AV8，AV12，AV21，AV31家庭和TCR的一个限制用法链BV3，BV14，BV21，BV23，在施主CD8+T房间的BV11家庭由pp65肽刺激了。这些T房间的序列包含了类似的顺序(TX)在TCR链和L(XT)的CDR3区域的G(X)A在TCR的G(X)A链。

简介：AbstractObjectives:To investigate the prevalence of ACADM pathogenic variants, c.985A>G and c.199T>C, for medium chain acyl CoA dehydrogenase deficiency (MCADD) in a healthy population in the southern region of Brazil.Methods:This was an observational cross-sectional study with a convenience sampling strategy. The participants were recruited from the blood bank of the Hospital de Clínicas of Porto Alegre, Brazil. A total of 1000 healthy individuals from the state of Rio Grande do Sul were included. Genotyping for the c.199T>C and c.985A>G variants was performed using real-time polymerase chain reaction (PCR) and the PCR-restriction fragment length polymorphism (RFLP) technique, respectively. Individuals considered heterozygous for c.985A>G were subjected to additional acylcarnitine profile analysis using tandem mass spectrometry. Carrier frequency was obtained by calculating the ratio of heterozygous individuals to the total number of individuals analyzed and reported with a 95% confidence interval. Allele and genotype frequencies were calculated based on the Hardy-Weinberg equilibrium.Results:The c.985A>G variant was detected as heterozygotes in three individuals (frequency of the heterozygous genotype = 1:333, allele frequency= 0.0015, minimum frequency of MCADD= 1:444,444) whose acylcarnitine profiles were within normal limits. The c.199T>C variant was not identified.Conclusions:Considering the small sample size and associated allelic heterogeneity with MCADD, these findings are believed to denote the rarity or underdiagnosis of MCADD in southern Brazil. This study provides evidence for the need for further investigation to ascertain the contribution of these diseases to child morbidity and mortality in the country.