同型半胱氨酸血症不伴甲基丙二酸尿症
Homocystinuria without methylmalonic aciduria
定义 英文原文(暂无中文)
Homocystinuria without methylmalonic aciduria is an inborn error of vitamin B12 (cobalamin) metabolism characterized by megaloblastic anemia, encephalopathy and, sometimes, developmental delay, and associated with homocystinuria and hyperhomocysteinemia. There are three types of homocystinuria without methylmalonic aciduria; cblE, cblG and cblD-variant 1 (cblDv1).
别名
功能性甲硫氨酸合成缺乏症
基本事实
- 遗传方式
- 常染色体隐性
- 发病年龄
- 各年龄段
- 患病率
- <1 / 1 000 000
相关基因 3来自下位疾病
Orphanet 未在本条目上直接标注致病基因。下表由本组所属的下位疾病汇总而来,「来源条目」列给出基因实际标注在哪一个 ORPHA 条目上。
| 基因 | 名称 | 来源条目 |
|---|---|---|
| MMADHC | metabolism of cobalamin associated D | ORPHA:308380 |
| MTR | 5-methyltetrahydrofolate-homocysteine methyltransferase | ORPHA:2170 |
| MTRR | 5-methyltetrahydrofolate-homocysteine methyltransferase reductase | ORPHA:2169 |
临床表型 31
极常见 99–80%1
- 高胱氨酸尿症 HP:0002156
常见 79–30%15
- 大脑皮层萎缩 HP:0002120
- 困倦 HP:0002329
- 脑病 HP:0001298
- 发育迟滞 HP:0001508
- 喂养困难 HP:0011968
- 全面发育迟缓 HP:0001263
- 高同型半胱氨酸血症 HP:0002160
- 肌张力减退 HP:0001252
- 智力障碍 HP:0001249
- 大细胞性贫血 HP:0001972
- 眼球震颤 HP:0000639
- 精神病 HP:0000709
- 视网膜病变 HP:0000488
- 癫痫发作 HP:0001250
- 斜视 HP:0000486
偶见 29–5%11
- 共济失调 HP:0001251
- 非典型行为 HP:0000708
- 脑萎缩 HP:0012444
- 痴呆 HP:0000726
- 生长延迟 HP:0001510
- 低甲硫氨酸血症 HP:0003658
- 昏睡 HP:0001254
- 意识下降 HP:0004372
- 视力下降 HP:0007663
- 视觉障碍 HP:0000505
- 呕吐 HP:0002013
罕见 <4–1%3
- 溶血性尿毒症综合征 HP:0005575
- 婴儿痉挛 HP:0012469
- 视神经萎缩 HP:0000648
排除 0%1
- 甲基丙二酸血症 HP:0002912
近两年的全球研究 182L2
2024/08 起在 Europe PMC 检索所得,按发表时间倒序显示最近 20 篇。本病的检索词较宽泛,命中数可能偏高,请以标题为准。标题未译成中文——自动翻译需要接入 LLM 服务,尚未引入。
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外部标识与链接
OrphanetOMIM:236270OMIM:250940OMIM:277410MONDO:0018964ICD-10 E72.1ICD-11 5C50.BClinicalTrials.gov 检索
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本页数据来源
- 疾病定义、同义词、基因、表型、流行病学:Orphanet(CC BY 4.0)
- 中文病名:Orphanet 中文包,冻结于 2020-06-01
- 表型中文标签:HPO 简体中文翻译(CHPO 上游成果)