回顾性分析2020年12月29日西南医科大学附属医院儿科收治的1例 MTO1基因新位点突变所致的复合型氧化磷酸化缺陷症10型(COXPD10)患儿临床资料。该患儿为汉族,男,2个月19 d,以呼吸急促、高乳酸高氨血症及脑损害为主要临床表现,心脏肥厚不明显。 MTO1基因上c.344delA和c.1055C>T位点杂合突变,目前国内外文献尚未见该位点报道。由 MTO1基因突变所致的COXPD10可能因突变位点不一致导致临床表现多样,对无明显诱因出现高乳酸血症的患儿应早期行基因检查明确COXPD10的可能。
The clinical data of a case of compound oxidative phosphorylation deficiency type 10 (COXPD10) caused by a new site mutation of MTO1 gene in the Department of Pediatrics, Affiliated Hospital of Southwest Medical University on December 29, 2020 were retrospectively analyzed.The patient was a 2 months and 19 days old boy of Han nationality.The main clinical manifestations were shortness of breath, hyperlactic acidemia, hyperammonemia and brain damage.Cardiac hypertrophy was not obvious.Heterozygous mutations at c. 344delA and c. 1055C>T sites in the MTO1 gene have not been reported in domestic and foreign literature.COXPD10 caused by MTO1 gene mutations may result in diversified clinical manifestations due to inconsistent mutation sites.For hyperlactic acidemia with unknown predisposing factors, early genetic examination should be conducted to confirm the possibility of COXPD10.
迂艳红,禄子薇,李佳芩,等. MTO1基因新位点突变致复合型氧化磷酸化缺陷症10型1例 [J]. 中华实用儿科临床杂志,2022,37(13):1026-1028.
DOI:10.3760/cma.j.cn101070-20210511-00518版权归中华医学会所有。
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注:COXPD10:复合型氧化磷酸化缺陷症10型;MRI:磁共振成像;T1WI:T1加权像;T2WI:T2加权像;DWI:扩散加权成像
Brain MRI in a child with COXPD10 caused by c.344delA and c.1055C>T heterozygous mutation of MTO1 gene A,B and C are brain MRI T1W1,T2W1and DWI imaging respectively,and they all indicate there are symmetrical abnormal signal shadows in the basal ganglia on both sides(as shown by the arrow)
COXPD10:compound oxidative phosphorylation deficiency type 10;MRI:magnetic resonance imaging;T1WI:T1 weighted image;T2WI:T2 weighted image;DWI:diffusion weighted imaging
注:COXPD10:复合型氧化磷酸化缺陷症10型
Sequencing results of the first generation of COXPD10 caused by heterozygous mutations of MTO1 gene c.344delA and c.1055C>T in the child and his parents (arrows and boxes indicate gene mutation sites) A:the child′s MTO1 gene c.344delA heterozygous variation comes from the mother (heterozygous variation);B:the child′s MTO1 gene c.1055C>T heterozygous variation comes from the father (heterozygous variation)
COXPD10:compound oxidative phosphorylation deficiency type 10
迂艳红、禄子薇:论文撰写;李佳芩、庄媛、邓艳:资料整理;刘靳波:技术支持;沈兴:研究指导、论文修改

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