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・もやもや病疾患感受性遺伝子として同定されたRNF213の遺伝子変異c.14429G>A(p.Arg4810Lys, rs112735431)は,頭蓋内動脈狭窄と関連する遺伝的要因である.
・RNF213 p.Arg4810Lysを有する頭蓋内動脈狭窄は,狭窄部がnegative remodelingを呈する.狭窄部位は内頚動脈や中大脳動脈といった前方循環の動脈に多いことが明らかにされてきている.
・RNF213 p.Arg4810Lysは冠動脈狭窄・腎動脈狭窄や肺高血圧症との関連が明らかとなっており,全身の血管疾患を来すvariantとして注目されてきている.
It has been verified that the missense variant c.14429G>A(p.Arg4810Lys, rs112735431)of RNF213(Ringer finger protein 213)is significantly associated with intracranial artery stenosis(ICAS). The clinical features of ICAS with RNF213 p.Arg4810Lys are also becoming clear. In addition, RNF213 p.Arg4810Lys has been found to be associated with coronary artery stenosis/renal artery stenosis and pulmonary hypertension, and has been attracting attention as a variant that causes systemic vascular disease. Functional analysis of RNF213 is also progressing, but the mechanism involved in disease onset has not yet been clarified, and further analysis is expected for the realization of personalized medicine for ICAS.
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