目的探讨合并2型糖尿病的腓骨肌萎缩症(CMT)一家系临床特点及可能的分子生物学发生机制。方法对40名家系成员进行详细家系调查、临床及辅助检查,并运用实时荧光PCR、普通PCR及基因测序等方法检测周围神经髓鞘蛋白22(peripheral myelin p...目的探讨合并2型糖尿病的腓骨肌萎缩症(CMT)一家系临床特点及可能的分子生物学发生机制。方法对40名家系成员进行详细家系调查、临床及辅助检查,并运用实时荧光PCR、普通PCR及基因测序等方法检测周围神经髓鞘蛋白22(peripheral myelin protein 22,PMP22)和髓鞘糖蛋白零(myelin protein zero,MPZ)基因有无突变。结果家系成员中5例经临床诊断为腓骨肌萎缩症1型(CMT1),其中4例伴2型糖尿病。该家系成员未发现PMP22基因大片段扩增突变及点突变;仅发现1例MPZ基因5820位点A→G多态性现象。结论 PMP22和MPZ基因突变不是本组合并2型糖尿病CMT家系的致病基因,需要进一步研究以明确该家系基因遗传规律。展开更多
腓骨肌萎缩症(charcot marie tooth disease,CMT)是一组最常见的周围神经单基因遗传病,具有高度的临床变异性和遗传异质性。CMT患病率约为1/2500,遗传方式可为常染色体显性,常染色体隐眭和X连锁遗传。由于运动和感觉神经元均受累...腓骨肌萎缩症(charcot marie tooth disease,CMT)是一组最常见的周围神经单基因遗传病,具有高度的临床变异性和遗传异质性。CMT患病率约为1/2500,遗传方式可为常染色体显性,常染色体隐眭和X连锁遗传。由于运动和感觉神经元均受累,多年前被归属于遗传性运动感觉神经病(hereditary motor and sensory neuropathy,HMSN)。自1991年发现由17号染色体短臂11.2区(17p11.2)1.5Mb的正向串联重复突变导致CMT1A.展开更多
Objective: To intensively investigate sporadic CMT patients, we have analyzed the LMNA gene in this study in a series of 32 unrelated CMT patients. Methods: Twelve exons of the LMNA gene were amplified from genetomic ...Objective: To intensively investigate sporadic CMT patients, we have analyzed the LMNA gene in this study in a series of 32 unrelated CMT patients. Methods: Twelve exons of the LMNA gene were amplified from genetomic DNA. PCR products of each exon were analyzed by single strand conformational polymorphism (SSCP). Results: No abnormal SSCP pattern, suggesting no mutation in our CMT patients, was detected. Conclusion: The CMT diseases resulted from the mutations of LMNA gene were rare.展开更多
文摘目的探讨合并2型糖尿病的腓骨肌萎缩症(CMT)一家系临床特点及可能的分子生物学发生机制。方法对40名家系成员进行详细家系调查、临床及辅助检查,并运用实时荧光PCR、普通PCR及基因测序等方法检测周围神经髓鞘蛋白22(peripheral myelin protein 22,PMP22)和髓鞘糖蛋白零(myelin protein zero,MPZ)基因有无突变。结果家系成员中5例经临床诊断为腓骨肌萎缩症1型(CMT1),其中4例伴2型糖尿病。该家系成员未发现PMP22基因大片段扩增突变及点突变;仅发现1例MPZ基因5820位点A→G多态性现象。结论 PMP22和MPZ基因突变不是本组合并2型糖尿病CMT家系的致病基因,需要进一步研究以明确该家系基因遗传规律。
文摘腓骨肌萎缩症(charcot marie tooth disease,CMT)是一组最常见的周围神经单基因遗传病,具有高度的临床变异性和遗传异质性。CMT患病率约为1/2500,遗传方式可为常染色体显性,常染色体隐眭和X连锁遗传。由于运动和感觉神经元均受累,多年前被归属于遗传性运动感觉神经病(hereditary motor and sensory neuropathy,HMSN)。自1991年发现由17号染色体短臂11.2区(17p11.2)1.5Mb的正向串联重复突变导致CMT1A.
文摘Objective: To intensively investigate sporadic CMT patients, we have analyzed the LMNA gene in this study in a series of 32 unrelated CMT patients. Methods: Twelve exons of the LMNA gene were amplified from genetomic DNA. PCR products of each exon were analyzed by single strand conformational polymorphism (SSCP). Results: No abnormal SSCP pattern, suggesting no mutation in our CMT patients, was detected. Conclusion: The CMT diseases resulted from the mutations of LMNA gene were rare.