返回列表 回复 发帖

中科院研究生院学员定位到了一个口吃基因

英文全文:
[Single nucleotide polymorphisms of DAT and DRD2 genes in Han Chinese population and their association with stuttering.]Pan CH, Song LP, DU J, Lan J, Wu CM, Wu LJ, Lin L, Wang W.Graduate School of Chinese Academy of Sciences, Beijing 100049, China.OBJECTIVE:To explore the correlations of dopamine transporter gene (DAT) and dopamine D(2) receptor gene (DRD2) to stuttering. METHODS: To examine the correlations of the 5 single nucleotide polymorphisms (SNPs) in dopaminergic gene (C252T, C1804T, and C1820T in DAT gene, and T1054C and C1072T in DRD(2) gene) to stuttering in Han Chinese individuals, a case-control study involving 112 patients with stuttering and 112 gender-matched controls was carried out. Genotyping was performed by a combined approach using polymerase chain reaction (PCR) and pyrosequencing.RESULTS:C1804T showed no polymorphism in either the patients or the control subjects and was therefore excluded from the following analysis. The C allele frequency at C1072T site was significantly higher, but T allele frequency significantly lower in the stuttering group than in the control group. The patients had significantly higher CC and lower CT genotype frequencies than the control group. There were no significant differences in the allelic frequencies of C252T, C1820T and T1054C between the patients and the controls, suggesting a Hardy-Weinberg equilibrium at these 3 loci. CONCLUSION: The presence of the C allele at C1072T in DRD(2) gene is associated with increased susceptibility to stuttering in Han Chinese, whereas the T allele provides protection against the onset of stuttering.
大概意思是找到了与口吃相关的多巴胺基因。具体内容由于过于专业,还是请大家先看看我以前的帖子有关多巴胺的部分。
不错,非常不错,我们中国人总算是给口吃的科学研究做出了一点贡献了!
中国人口最多,中国口吃患者也最多,中国人应该的口吃科学研究领域为人类作出更大的贡献。
whoisit :

Single nucleotide polymorphisms of DAT and DRD2 genes in Han Chinese population and their association with stuttering
这就是英文标题

口吃的起因当然是基因问题,这不需要太多的说明,越来越多研究都可以证明这一点,只不过找出基因也不能把它怎样,只能寻找有效的治疗办法。为什么一些多巴胺抑制药物可以缓解口吃,而一些药物可以引起口吃?为什么曾经有口吃者在大脑疾病手术时口吃意外消失?为什么口吃者左脑和常人不一样?为什么左撇子口吃的概念大,而左撇子口吃的情况比起非左撇子口吃者要轻一些?难道你还认为口吃是心理原因,人人都是口吃者?
---------------------

道声珍重跟帖:

为什么左撇子口吃的概念大,而左撇子口吃的情况比起非左撇子口吃者要轻一些?

前者我经过很多验证是这样的。而后者我还没注意到,想想我的案例大多数倒是符合,以后我留心这个问题。
谢谢。口吃的生理上的原因(包括基因、神经递质多巴胺的多少),肯定是有的。但是不能排除心理原因。
生理心理是不能分开的。
迷茫中........
刚在“人肉搜索愚公”里发过,再发一次。
最近我哥哥热衷于制作家谱,这使我突然想到研究一下口吃在我家族中是怎样遗传的。经过研究,我发现从我曾祖父(不口吃)以后开始,我家这一支开始有口吃,70%的男的都有,能有7-8个人,我父亲和我都有轻微口吃。原因是我曾祖母在智力和语言上有些问题,从而遗传下来。而其他各支到现在都没有一例口吃,并且有好几个口才特别好的。这使我明白两点:一是口吃确实会遗传;二是经过几代后,口吃或许会消失(我儿子虽然口才并不好,但并不口吃),因为从我爷爷这辈才开始有。我坚决反对口吃是心理因素的说法(假性口吃说不定是心理因素造成的)。
返回列表