...附近有大量的基因，其中，谷氨酰半胱氨酸合成酶催化亚单位（GCLC）基因、驱动蛋白13A（KIF13A）基因、脊髓小脑共济失调1（SCA1）基因、短棒菌素结合蛋白1（DTNBP1）基因是当前广 大学者研究精神分裂症易患基因的焦点基因[8-12]。
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Methods The length of genetic segment of SCA1, SCA2 and SCA3 in 92 patients with ataxia of unknown origin were detected by polymerase chain reaction (PCR) and agarose gel electrophoresis.
方法应用PCR方法和琼脂糖凝胶电泳对92例不明原因共济失调先证患者测定其SCA1、SCA2和SCA3基因片段长度。
Conclusion the incidence of SCA1, SCA2 and SCA3 is 22.8% in patients with ataxia of unknown origin, and SCA3 is main type. Genetic analysis is the most effective means for the diagnosis of SCA.
结论通过这次研究，发现SCA1、SCA2、SCA3型在不明原因的共济失调中的发生率为22.8%，其中又以SCA3型为主，确定诊断的最直接最有效的手段是基因诊断。
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