TRMU deficiency: A broad clinical spectrum responsive to cysteine supplementation.
TRMU deficiency: A broad clinical spectrum responsive to cysteine supplementation.
复制标题
TRMU缺乏:对半胱氨酸补充有反应的广泛临床谱。
DOI:
10.1016/j.ymgme.2021.01.005
复制
发表时间:
2021-03
影响因子:
3.8
通讯作者:
Ganetzky R
中科院分区:
文献类型:
--
作者:
Murali CN;Soler-Alfonso C;Loomes KM;Shah AA;Monteil D;Padilla CD;Scaglia F;Ganetzky R
TRMU is a nuclear gene crucial for mitochondrial DNA translation by encoding tRNA 5-methylaminomethyl-2-thiouridylate methyltransferase, which thiolates mitochondrial tRNA. Biallelic pathogenic variants in TRMU are associated with transient infantile liver failure. Other less common presentations such as Leigh syndrome, myopathy, and cardiomyopathy have been reported. Recent studies suggested that provision of exogenous L-cysteine or N-acetylcysteine may ameliorate the effects of disease-causing variants and improve the natural history of the disease. Here, we report six infants with biallelic TRMU variants, including four previously unpublished patients, all treated with exogenous cysteine. We highlight the first report of an affected patient undergoing orthotopic liver transplantation, the long-term effects of cysteine supplementation, and the ability of the initial presentation to mimic multiple inborn errors of metabolism. We propose that TRMU deficiency should be suspected in all children presenting with persistent lactic acidosis and hypoglycemia, and that combined N-acetylcysteine and L-cysteine supplementation should be considered prior to molecular diagnosis, as this is a low-risk approach that may increase survival and mitigate the severity of the disease course.
登录
查看更多内容
影响因子:
4
作者:
Uusimaa J;Jungbluth H;Fratter C;Crisponi G;Feng L;Zeviani M;Hughes I;Treacy EP;Birks J;Brown GK;Sewry CA;McDermott M;Muntoni F;Poulton J
通讯作者:
Poulton J
影响因子:
4.2
作者:
Schara, Ulrike;von Kleist-Retzow, Juergen-Christoph;Horvath, Rita
通讯作者:
Horvath, Rita
影响因子:
9.8
作者:
Zeharia, Avraham;Shaag, Avraham;Elpeleg, Orly
通讯作者:
Elpeleg, Orly
影响因子:
3.9
作者:
Enns GM;Cowan TM
通讯作者:
Cowan TM
DOI:
10.1007/8904_2013_230
发表时间:
2013-01-01
期刊:
JIMD REPORTS, VOL 11
影响因子:
--
作者:
Gaignard, Pauline;Gonzales, Emmanuel;Slama, Abdelhamid
通讯作者:
Slama, Abdelhamid