目的:对ATP6V1H内含子区域的4个目标SNPs(rs2376011,rs4738884,rs10435587,rs41321146)等位基因进行深度分析,并探讨这些SNPs的生物学意义。方法:运用3DSNP数据库、LncSNP 2.0数据库、LNCipedia version 5.2、NCBI网站信息及RPIseq数据...目的:对ATP6V1H内含子区域的4个目标SNPs(rs2376011,rs4738884,rs10435587,rs41321146)等位基因进行深度分析,并探讨这些SNPs的生物学意义。方法:运用3DSNP数据库、LncSNP 2.0数据库、LNCipedia version 5.2、NCBI网站信息及RPIseq数据库等多种信息分析方法对4个SNPs的生物学信息及相关lncRNA的功能进行预测。结果:该4个SNPs位于8号染色体,其等位基因频率在亚洲人群约0.35,高于国际平均水平(约0.18)。染色质状态预测发现其中3个SNPs在不同组织或细胞的ATP6V1H中定位于增强子区域,可通过形成约800 kb的染色质环与NPBWR1进行三维交互作用。采用LncSNP2.0预测分析发现,rs4738884和rs10435587位于lncRNA编码基因NONHSAG050234和lnc-TCEA1-3之上,而lnc-TCEA1-3与ATP6V1H存在较强的相互作用,与自闭症和冠状动脉疾病的发生发展相关。结论:4个内含子区域SNPs通过增强子效应与lncRNA影响基因表达及相关功能。展开更多
采用分子表面随机采样分析对26个香豆素类衍生物抗艾滋病药物进行定量构效关系研究。运用多元线性回归(multiple linear regression,MLR)建模,同时采用内部及外部双重验证的办法对所得模型稳定性能进行深入分析和检验。MLR建模的复相关...采用分子表面随机采样分析对26个香豆素类衍生物抗艾滋病药物进行定量构效关系研究。运用多元线性回归(multiple linear regression,MLR)建模,同时采用内部及外部双重验证的办法对所得模型稳定性能进行深入分析和检验。MLR建模的复相关系数(_(cum)~2)、留一法(1eave-one-out,LOO)交互校验(cross-validation,CV)复相关系数(Q_(CV)~2)和外部样本校验复相关系数r^2(test)分别为0.936、0.894、0.772。结果表明,RASMS能较好表征香豆素类衍生物抗艾滋病药物分子的结构信息,且所建模型具有良好稳定性和预测能力,可用于研发新型HIV整合酶抑制剂。展开更多
Objective To investigate the reproductive and sexual health situation, including knowledge, attitudes, and behaviors, among a population-based sample of internal migrant workers in China. Methods A cross-sectional sur...Objective To investigate the reproductive and sexual health situation, including knowledge, attitudes, and behaviors, among a population-based sample of internal migrant workers in China. Methods A cross-sectional survey of 4 900 rural-to-urban migrants in 6 provinces of China was conducted. Participants completed a 30-min semi-structured questionnaire about contraceptive practices, sexual behavior, and HIV-related knowledge. Results Migrants lacked knowledge of reproductive and sexual health issues. Among those who had heard any sexually transmitted infections （STIs）, only 79.1%, 46.2%, 86.1%, 14.5% and 82.2%, respectively, knew that gonorrhea, condyloma, syphilis, chancroid, and AIDS were STIs. About three-quarters of participants had not used any contraceptive method at sexual debut. Among current users of contraceptive methods, 85.5% indicated that they were satisfied with the method. Before adoption of a contraceptive method, 46.6% of the migrant workers were unaware of the advantages/ disadvantages of the method and 75.3% had no knowledge of emergency contraception. Nearly one-quarter （23.4%） reported that they had premarital sex. Among migrants who were sexually active one month prior to the survey, only 14.0% reported that they had used condoms. Conclusion The limited sexual and reproductive health knowledge and unmet reproductive health services of migrant workers in China underscore the need for a comprehensive package of sexual and reproductive health interventions that combine cognitive and behavioral skills training and target both migrants and health care providers.展开更多
文摘目的:对ATP6V1H内含子区域的4个目标SNPs(rs2376011,rs4738884,rs10435587,rs41321146)等位基因进行深度分析,并探讨这些SNPs的生物学意义。方法:运用3DSNP数据库、LncSNP 2.0数据库、LNCipedia version 5.2、NCBI网站信息及RPIseq数据库等多种信息分析方法对4个SNPs的生物学信息及相关lncRNA的功能进行预测。结果:该4个SNPs位于8号染色体,其等位基因频率在亚洲人群约0.35,高于国际平均水平(约0.18)。染色质状态预测发现其中3个SNPs在不同组织或细胞的ATP6V1H中定位于增强子区域,可通过形成约800 kb的染色质环与NPBWR1进行三维交互作用。采用LncSNP2.0预测分析发现,rs4738884和rs10435587位于lncRNA编码基因NONHSAG050234和lnc-TCEA1-3之上,而lnc-TCEA1-3与ATP6V1H存在较强的相互作用,与自闭症和冠状动脉疾病的发生发展相关。结论:4个内含子区域SNPs通过增强子效应与lncRNA影响基因表达及相关功能。
文摘采用分子表面随机采样分析对26个香豆素类衍生物抗艾滋病药物进行定量构效关系研究。运用多元线性回归(multiple linear regression,MLR)建模,同时采用内部及外部双重验证的办法对所得模型稳定性能进行深入分析和检验。MLR建模的复相关系数(_(cum)~2)、留一法(1eave-one-out,LOO)交互校验(cross-validation,CV)复相关系数(Q_(CV)~2)和外部样本校验复相关系数r^2(test)分别为0.936、0.894、0.772。结果表明,RASMS能较好表征香豆素类衍生物抗艾滋病药物分子的结构信息,且所建模型具有良好稳定性和预测能力,可用于研发新型HIV整合酶抑制剂。
文摘Objective To investigate the reproductive and sexual health situation, including knowledge, attitudes, and behaviors, among a population-based sample of internal migrant workers in China. Methods A cross-sectional survey of 4 900 rural-to-urban migrants in 6 provinces of China was conducted. Participants completed a 30-min semi-structured questionnaire about contraceptive practices, sexual behavior, and HIV-related knowledge. Results Migrants lacked knowledge of reproductive and sexual health issues. Among those who had heard any sexually transmitted infections （STIs）, only 79.1%, 46.2%, 86.1%, 14.5% and 82.2%, respectively, knew that gonorrhea, condyloma, syphilis, chancroid, and AIDS were STIs. About three-quarters of participants had not used any contraceptive method at sexual debut. Among current users of contraceptive methods, 85.5% indicated that they were satisfied with the method. Before adoption of a contraceptive method, 46.6% of the migrant workers were unaware of the advantages/ disadvantages of the method and 75.3% had no knowledge of emergency contraception. Nearly one-quarter （23.4%） reported that they had premarital sex. Among migrants who were sexually active one month prior to the survey, only 14.0% reported that they had used condoms. Conclusion The limited sexual and reproductive health knowledge and unmet reproductive health services of migrant workers in China underscore the need for a comprehensive package of sexual and reproductive health interventions that combine cognitive and behavioral skills training and target both migrants and health care providers.
