神經遺傳疾病 (6) 腦血管疾病

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疾病基因重點
CADASILNOTCH3R544C (Cysteine alternating mutation)
AD 遺傳,Exon 11 (78.8%) > Exon 2-6 (14.7%)
Type 2 CADASILHTRA1Serine protease domain 突變
CADASIL type 2: 和 CADASIL type 1 很像,有 70% 會出現 CARASIL 的 DJD,但禿頭比較少、也比較晚出現
CARASILHTRA1Triad: Alopecia + Lumbago + Binswanger’s syndrome
腦白落髮腰不直
CARASALCTSACathepsin A (p.R325C)
會增加 ET-1 分泌 → Refractory HTN
PADMALCOL4A1Pontine AD microangiopathy and leukoencephalopathy
RVCL-S(= HERNS = CRV)TREX1AD 遺傳
Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations
cerebroretinal vasculopathy
Hereditary endotheliopathy with retinopathy, nephropathy, and stroke
Fabry’sGLAX-linked
Cerebral amyloidAPP, CST3AD 遺傳
CCM(Cerebral cavernous malformation)CCM1 = KRIT1
CCM2 = MGC4607
CCM3 = PDCD10
AD 遺傳(fCCM 佔了所有 CCM 約 20%)
fCCM 比 sporadic form 更多出血,與癲癇更有關Penetrance:CCM1 (60-88%), CCM2 (100%, but one family only 70%), CCM3 (63%, 嚴重);疾病特色:Heterogeneity and variable expressivity with affected individuals in the same family

KRIT1 比較輕微,但是容易有皮膚 cutaneous vascular malformation:HCCVM、CM、VM

PDCD10 (CCM3) 相比於 CCM1/2,比較嚴重、病灶數量較多、發病年齡較早,且比較容易出現 Cafe-au-lait spot
MMD(Moyamoya disease)RNF213(= Mysterin)RNF213 和 angiogenesis 有關,遺傳模式為AD hereditary with incomplete penetrance。
95% familial & 79% Sporadic MMD in p.R4810K (Chr 17q25.3) 只在東亞病人出現,其他位點則包含 D4013N, p.A4399T。
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