目的探究PROS1基因单核苷酸多态性(SNP)与包头地区汉族人群复发性流产(RSA)发生风险之间的相关性。方法选取RSA患者及对照人群各158例作为研究对象,测定蛋白S、蛋白C、抗凝血酶-Ⅲ活性;使用聚合酶链式反应-限制性片段长度多态性(PCR-RF...目的探究PROS1基因单核苷酸多态性(SNP)与包头地区汉族人群复发性流产(RSA)发生风险之间的相关性。方法选取RSA患者及对照人群各158例作为研究对象,测定蛋白S、蛋白C、抗凝血酶-Ⅲ活性;使用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术对PROS1基因rs13062355、rs6441600和rs12634349位点进行基因分型。采用非条件性Logistic回归分析PROS1基因三种SNP与RSA发生风险的相关性。结果RSA患者的蛋白S、抗凝血酶-Ⅲ活性下降(P<0.05);PROS1 SNP rs13062355在显性模型下与RSA发病风险相关:与携带TT基因型患者比较,携带CT+CC基因型的患者RSA发病风险下降(OR=0.398,95%CI:0.249~0.638)。SNP rs6441600、rs12634349与RSA的发病风险无关联。在PROS1 rs13062355、rs6441600、rs12634349构建的单体型中,单体型C-C-C在两组间差异有统计学意义(P<0.05);三阶交互模型rs13062355-rs6441600-rs12634349与RSA发病风险相关。结论PROS1 SNP rs13062355可能与包头地区汉族女性RSA患病风险相关;PROS1 rs13062355、rs6441600、rs12634349的单体型C-C-C降低了RSA发病风险;三阶模型rs13062355-rs6441600-rs12634349的交互作用在RSA的发生中具有协同效应。展开更多
目的为了解青海省犬科动物流行的钩虫种类,为青藏高原地区钩虫的流行分布及种群进化研究提供依据。方法2014—2016年在青海省达日县和兴海县分别收集犬科动物粪便样本,洗脱获取粪便表面动物细胞,通过PCR扩增和测序对粪便标本溯源,以饱...目的为了解青海省犬科动物流行的钩虫种类,为青藏高原地区钩虫的流行分布及种群进化研究提供依据。方法2014—2016年在青海省达日县和兴海县分别收集犬科动物粪便样本,洗脱获取粪便表面动物细胞,通过PCR扩增和测序对粪便标本溯源,以饱和蔗糖水漂浮法进行粪便虫卵检查,收集虫卵提取DNA,以聚合酶链反应-限制性内切酶片段长度多态性(PCR-restriction fragment length polymorphism,PCR-RFLP)法进行虫种鉴定。结果通过动物粪便溯源试验,获得动物线粒体D-loop区域长度为372bp的基因片段,运用基本局部比对搜索工具(basic local alignment search tool,BLAST)分析显示达日县和兴海县动物粪便标本来源分别为家犬和红狐;虫卵内转录间隔区(internal transcribed spacer,ITS)的PCR扩增,获得长度约为544bp的特异性电泳条带,PCR产物经限制性内切酶RsaⅠ和HinfⅠ的酶切反应显示特异性的酶切、电泳条带,两个钩虫样本均被鉴定为锡兰钩虫。结论锡兰钩虫首次在青藏高原地区报道,并在野生红狐体内被发现,有一定的生物学意义。展开更多
Background: Type 2 diabetes mellitus (T2DM) is a metabolic disease, characterized by chronic hyperglycemia. This pathology is linked to various genes whose interaction with the environment promotes its development. Th...Background: Type 2 diabetes mellitus (T2DM) is a metabolic disease, characterized by chronic hyperglycemia. This pathology is linked to various genes whose interaction with the environment promotes its development. The aim of this work was to determine the relationship between the rs2241766 (T/G) polymorphism of the ADIPOQ gene with type 2 diabetes in the black population. Material and Methods: This work was a case-control study, involving type 2 diabetics subjects (n = 94) and controls (n = 82). The study took place from September 2022 to September 2023. Patients were recruited in the Endocrinology Department of the Libreville University Hospital Center. Analysis was performed in the Biochemistry laboratory of the University of Health Sciences in Libreville and at the Research Institute of Health Sciences of Bobodioulasso. Genomic DNA was extracted using the protocol Qiagen kit and the PCR-RFLP method was used to determine the rs2241766 (T/G) polymorphism of the ADIPOQ gene. Results: Only 2 genotypes were found in this population, the TT genotype and the GT genotype. The proportions were not different between the two groups (p = 0.1095) neither the distribution of G and T alleles (p = 0.1095). On the other hand, the HDL hypocholesterolemia was frequent in subjects with the GT genotype compared to TT heterozygous (51.1% vs 48.9%, p = 0.0280;OR = 0.55 [0.30 - 1.01]). Conclusion: There was no association between the rs2241766 (T/G) variant of the ADIPOQ gene and the occurrence of type 2 diabetes in this population. On the other hand, a relationship between HDL hypocholesterolemia and the GT genotype has been established.展开更多
Schistosomiasis is a public health concern in Benin. Freshwater snails of the genus Bulinus serve as intermediate hosts for schistosomes, trematode parasites responsible for bilharzia. The urinary form, caused by Schi...Schistosomiasis is a public health concern in Benin. Freshwater snails of the genus Bulinus serve as intermediate hosts for schistosomes, trematode parasites responsible for bilharzia. The urinary form, caused by Schistosoma haematobium, is the most widespread and is transmitted to humans by these mollusks, with Bulinus truncatus and Bulinus globosus being the most important species. Effective strategies to combat the transmission of these parasites require a prior understanding of the molecular characterization of Bulinus snails. For this purpose, 293 Bulinus snails were collected and morphologically identified from two localities in southern Benin, Sô-Ava and Azowlissè. The snails were preserved in absolute alcohol. To achieve the set objectives, DNA was extracted from the collected biological material, and SSU gene fragments were amplified. Using PCR-RFLP, the amplified fragments were digested with the restriction endonucleases HaeIII, HinfI, and DdeI to perform molecular characterization. In this study, 80 individuals of B. globosus and 10 of B. truncatus were subjected to molecular analysis. The PCR-RFLP profiles showed bands of different sizes for the Bulinus species when analyzed with the three endonucleases using the SSU molecular marker. PCR-RFLP analysis revealed that the snails belonged to the freshwater genus Bulinus, including Bulinus globosus and B. truncatus, based on reference profiles from studies conducted in Nigeria, which enabled precise identification of these gastropods. This study provided initial insights, although still incomplete, into the molecular diversity of these species.展开更多
文摘目的探究PROS1基因单核苷酸多态性(SNP)与包头地区汉族人群复发性流产(RSA)发生风险之间的相关性。方法选取RSA患者及对照人群各158例作为研究对象,测定蛋白S、蛋白C、抗凝血酶-Ⅲ活性;使用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术对PROS1基因rs13062355、rs6441600和rs12634349位点进行基因分型。采用非条件性Logistic回归分析PROS1基因三种SNP与RSA发生风险的相关性。结果RSA患者的蛋白S、抗凝血酶-Ⅲ活性下降(P<0.05);PROS1 SNP rs13062355在显性模型下与RSA发病风险相关:与携带TT基因型患者比较,携带CT+CC基因型的患者RSA发病风险下降(OR=0.398,95%CI:0.249~0.638)。SNP rs6441600、rs12634349与RSA的发病风险无关联。在PROS1 rs13062355、rs6441600、rs12634349构建的单体型中,单体型C-C-C在两组间差异有统计学意义(P<0.05);三阶交互模型rs13062355-rs6441600-rs12634349与RSA发病风险相关。结论PROS1 SNP rs13062355可能与包头地区汉族女性RSA患病风险相关;PROS1 rs13062355、rs6441600、rs12634349的单体型C-C-C降低了RSA发病风险;三阶模型rs13062355-rs6441600-rs12634349的交互作用在RSA的发生中具有协同效应。
文摘目的为了解青海省犬科动物流行的钩虫种类,为青藏高原地区钩虫的流行分布及种群进化研究提供依据。方法2014—2016年在青海省达日县和兴海县分别收集犬科动物粪便样本,洗脱获取粪便表面动物细胞,通过PCR扩增和测序对粪便标本溯源,以饱和蔗糖水漂浮法进行粪便虫卵检查,收集虫卵提取DNA,以聚合酶链反应-限制性内切酶片段长度多态性(PCR-restriction fragment length polymorphism,PCR-RFLP)法进行虫种鉴定。结果通过动物粪便溯源试验,获得动物线粒体D-loop区域长度为372bp的基因片段,运用基本局部比对搜索工具(basic local alignment search tool,BLAST)分析显示达日县和兴海县动物粪便标本来源分别为家犬和红狐;虫卵内转录间隔区(internal transcribed spacer,ITS)的PCR扩增,获得长度约为544bp的特异性电泳条带,PCR产物经限制性内切酶RsaⅠ和HinfⅠ的酶切反应显示特异性的酶切、电泳条带,两个钩虫样本均被鉴定为锡兰钩虫。结论锡兰钩虫首次在青藏高原地区报道,并在野生红狐体内被发现,有一定的生物学意义。
文摘Background: Type 2 diabetes mellitus (T2DM) is a metabolic disease, characterized by chronic hyperglycemia. This pathology is linked to various genes whose interaction with the environment promotes its development. The aim of this work was to determine the relationship between the rs2241766 (T/G) polymorphism of the ADIPOQ gene with type 2 diabetes in the black population. Material and Methods: This work was a case-control study, involving type 2 diabetics subjects (n = 94) and controls (n = 82). The study took place from September 2022 to September 2023. Patients were recruited in the Endocrinology Department of the Libreville University Hospital Center. Analysis was performed in the Biochemistry laboratory of the University of Health Sciences in Libreville and at the Research Institute of Health Sciences of Bobodioulasso. Genomic DNA was extracted using the protocol Qiagen kit and the PCR-RFLP method was used to determine the rs2241766 (T/G) polymorphism of the ADIPOQ gene. Results: Only 2 genotypes were found in this population, the TT genotype and the GT genotype. The proportions were not different between the two groups (p = 0.1095) neither the distribution of G and T alleles (p = 0.1095). On the other hand, the HDL hypocholesterolemia was frequent in subjects with the GT genotype compared to TT heterozygous (51.1% vs 48.9%, p = 0.0280;OR = 0.55 [0.30 - 1.01]). Conclusion: There was no association between the rs2241766 (T/G) variant of the ADIPOQ gene and the occurrence of type 2 diabetes in this population. On the other hand, a relationship between HDL hypocholesterolemia and the GT genotype has been established.
文摘Schistosomiasis is a public health concern in Benin. Freshwater snails of the genus Bulinus serve as intermediate hosts for schistosomes, trematode parasites responsible for bilharzia. The urinary form, caused by Schistosoma haematobium, is the most widespread and is transmitted to humans by these mollusks, with Bulinus truncatus and Bulinus globosus being the most important species. Effective strategies to combat the transmission of these parasites require a prior understanding of the molecular characterization of Bulinus snails. For this purpose, 293 Bulinus snails were collected and morphologically identified from two localities in southern Benin, Sô-Ava and Azowlissè. The snails were preserved in absolute alcohol. To achieve the set objectives, DNA was extracted from the collected biological material, and SSU gene fragments were amplified. Using PCR-RFLP, the amplified fragments were digested with the restriction endonucleases HaeIII, HinfI, and DdeI to perform molecular characterization. In this study, 80 individuals of B. globosus and 10 of B. truncatus were subjected to molecular analysis. The PCR-RFLP profiles showed bands of different sizes for the Bulinus species when analyzed with the three endonucleases using the SSU molecular marker. PCR-RFLP analysis revealed that the snails belonged to the freshwater genus Bulinus, including Bulinus globosus and B. truncatus, based on reference profiles from studies conducted in Nigeria, which enabled precise identification of these gastropods. This study provided initial insights, although still incomplete, into the molecular diversity of these species.
