We evaluated the genotypes of the serotonin transporter gene （5-HTT） in patients with premature ejaculation （PE） to determine the role of genetic factors in the etiopathogenesis of PE and possibly to identify the ...We evaluated the genotypes of the serotonin transporter gene （5-HTT） in patients with premature ejaculation （PE） to determine the role of genetic factors in the etiopathogenesis of PE and possibly to identify the patient subgroups. A total of 70 PE patients and 70 controls were included in this study. All men were heterosexual, had no other disorders and were either married or in a stable relationship. PE was defined as ejaculation that occurred within 1 min of vaginal intromission. Genomic DNA from patients and controls was analyzed using polymerase chain reaction, and allelic variations of the promoter region of the serotonin transporter gene （5-HTTLPR） were determined. The 5-HTTLPR （serotonin transporter promoter gene） genotypes in PE patients vs. controls were distributed as follows： L/L 16% vs. 17%, L/S 30% vs. 53% and S/S 54% vs. 28%. We examined the haplotype analysis for three polymorphisms of the 5-HTTLPR gene： LL, LS and SS. The appropriateness of the allele frequencies in the 5-HTTLPR gene was analyzed by the Hardy-Weinberg equilibrium using the Z-test. The short （S） allele of the 5-HTTLPR gene was significantly more frequent in PE patients than in controls （P 〈 0.05）. We suggest that the 5-HTTLPR gene plays a role in the pathophysiology of all primary PE cases. Further studies are needed to evaluate the relationship between 5-HTTLPR gene polymorphism and patient subgroup （such as primary and secondary PE） responses to selective serotonin reuptake inhibitors as well as ethnic differences.展开更多
Objective: The purpose of the present study was to evaluate the association between the 5-HTTLPR and 5-HTTVNTR polymorphisms in the serotonin transporter gene (SLC6A4) in Brazilian women with diagnosed postpartum depr...Objective: The purpose of the present study was to evaluate the association between the 5-HTTLPR and 5-HTTVNTR polymorphisms in the serotonin transporter gene (SLC6A4) in Brazilian women with diagnosed postpartum depression (PPD) and the presence of depressive symptoms. Method: The cohort consisted of 128 white women who were charac-terized based on skin color and morphological characteristics. The Beck Depression Inventory was used to diagnose PPD and to score the depressive symptoms. The 5-HTTLPR and 5-HTTVNTR polymorphisms were analyzed by PCR-based methods. Results: No association was observed between the PPD diagnosis and either the 5-HTTLPR (p = 0.48) or the 5-HTTVNTR (p = 0.77) polymorphism. When the polymorphisms were analyzed together with haplotype data, the analyses demonstrated that women carriers of the L-12/L-12 diplotype have lower Beck Depression Inventory scores than women carrying other diplotypes (p = 0.04). Discussion: Few studies have investigated the association of SLC6A4 polymorphisms with PPD, and the role of 5-HTTLPR and 5-HTTVNTR polymorphisms in PPD susceptibility has not been established to date. Therefore, our findings link the haplotypes of these two variants with depression symptoms, thereby contributing to our understanding of PPD susceptibility.展开更多
目的探讨5-羟色胺转运体（5-HTT）基因第二内含子多态性（5-HTFVNTR）与自杀未遂的相关性。方法运用聚合酶链反应技术（PCR）检测71例自杀未遂患者（患者组）和80名健康对照者（对照组）5-HTTVNTR的三种基因型及等位基因分布频率。结果...目的探讨5-羟色胺转运体（5-HTT）基因第二内含子多态性（5-HTFVNTR）与自杀未遂的相关性。方法运用聚合酶链反应技术（PCR）检测71例自杀未遂患者（患者组）和80名健康对照者（对照组）5-HTTVNTR的三种基因型及等位基因分布频率。结果自杀未遂组第二内含子基因型及等位基因分布频率与正常对照组之间（基因型10／10：5 VS 7；基因型10／12：29 VS 31；基因型12／12：37 VS 42；等位基因10：39 VS 45；等位基因12：103 VS 115）差异无显著性（X^2=0．181，P=0．914；X^2=0．016，P=0．898）。结论汉族人群中5-HTT基因第二内含子多态性与自杀未遂没有明显相关性。展开更多
文摘We evaluated the genotypes of the serotonin transporter gene （5-HTT） in patients with premature ejaculation （PE） to determine the role of genetic factors in the etiopathogenesis of PE and possibly to identify the patient subgroups. A total of 70 PE patients and 70 controls were included in this study. All men were heterosexual, had no other disorders and were either married or in a stable relationship. PE was defined as ejaculation that occurred within 1 min of vaginal intromission. Genomic DNA from patients and controls was analyzed using polymerase chain reaction, and allelic variations of the promoter region of the serotonin transporter gene （5-HTTLPR） were determined. The 5-HTTLPR （serotonin transporter promoter gene） genotypes in PE patients vs. controls were distributed as follows： L/L 16% vs. 17%, L/S 30% vs. 53% and S/S 54% vs. 28%. We examined the haplotype analysis for three polymorphisms of the 5-HTTLPR gene： LL, LS and SS. The appropriateness of the allele frequencies in the 5-HTTLPR gene was analyzed by the Hardy-Weinberg equilibrium using the Z-test. The short （S） allele of the 5-HTTLPR gene was significantly more frequent in PE patients than in controls （P 〈 0.05）. We suggest that the 5-HTTLPR gene plays a role in the pathophysiology of all primary PE cases. Further studies are needed to evaluate the relationship between 5-HTTLPR gene polymorphism and patient subgroup （such as primary and secondary PE） responses to selective serotonin reuptake inhibitors as well as ethnic differences.
文摘Objective: The purpose of the present study was to evaluate the association between the 5-HTTLPR and 5-HTTVNTR polymorphisms in the serotonin transporter gene (SLC6A4) in Brazilian women with diagnosed postpartum depression (PPD) and the presence of depressive symptoms. Method: The cohort consisted of 128 white women who were charac-terized based on skin color and morphological characteristics. The Beck Depression Inventory was used to diagnose PPD and to score the depressive symptoms. The 5-HTTLPR and 5-HTTVNTR polymorphisms were analyzed by PCR-based methods. Results: No association was observed between the PPD diagnosis and either the 5-HTTLPR (p = 0.48) or the 5-HTTVNTR (p = 0.77) polymorphism. When the polymorphisms were analyzed together with haplotype data, the analyses demonstrated that women carriers of the L-12/L-12 diplotype have lower Beck Depression Inventory scores than women carrying other diplotypes (p = 0.04). Discussion: Few studies have investigated the association of SLC6A4 polymorphisms with PPD, and the role of 5-HTTLPR and 5-HTTVNTR polymorphisms in PPD susceptibility has not been established to date. Therefore, our findings link the haplotypes of these two variants with depression symptoms, thereby contributing to our understanding of PPD susceptibility.
文摘目的探讨5-羟色胺转运体（5-HTT）基因第二内含子多态性（5-HTFVNTR）与自杀未遂的相关性。方法运用聚合酶链反应技术（PCR）检测71例自杀未遂患者（患者组）和80名健康对照者（对照组）5-HTTVNTR的三种基因型及等位基因分布频率。结果自杀未遂组第二内含子基因型及等位基因分布频率与正常对照组之间（基因型10／10：5 VS 7；基因型10／12：29 VS 31；基因型12／12：37 VS 42；等位基因10：39 VS 45；等位基因12：103 VS 115）差异无显著性（X^2=0．181，P=0．914；X^2=0．016，P=0．898）。结论汉族人群中5-HTT基因第二内含子多态性与自杀未遂没有明显相关性。
