Results 31 to 40 of about 3,232 (144)

Persistent pulmonary hypertension of the newborn due to methylmalonic acidemia: a case report and review of the literature

open access: yesJournal of Medical Case Reports, 2023
Background Persistent pulmonary hypertension of the newborn manifesting with refractory and severe cyanosis is the consequence of high pulmonary vascular resistance causing extrapulmonary right-to-left shunt.
Fariba Hemmati, Hamide Barzegar
doaj   +1 more source

Impaired mitophagy links mitochondrial disease to epithelial stress in methylmalonyl-CoA mutase deficiency

open access: yesNature Communications, 2020
Methylmalonic acidemia is an inherited metabolic disease caused by loss or mutation of the enzyme MMUT. Here the authors use cell and animal models to show that MMUT mutations lead to defective mitophagy and stress in kidney cells, contributing to the ...
Alessandro Luciani   +19 more
doaj   +1 more source

Physical and Neurological Development of a Girl Born to a Mother with Methylmalonic Acidemia and Kidney Transplantation and Review of the Literature

open access: yesChildren, 2021
Background: actual literature suggests that children of methylmalonic acidemia patients are mostly healthy, but data are only partial, especially regarding long-term outcome.
Alessia Marcellino   +11 more
doaj   +1 more source

Spectrum of clinical manifestation of methylmalonic acidemia and homocystinuria in a family of six siblings: novel combination of transcobalamin receptor defect (CD320) and cblC deficiency (MMACHC)

open access: yesEgyptian Journal of Medical Human Genetics, 2021
Background Methylmalonic acidemia with homocystinuria is caused by a rare inborn error of vitamin B12 (cobalamin) metabolism. There are four complementation classes of cobalamin defects cblC, cblD, cblF, and cblJ that are responsible for combined ...
Nadia Waheed, Zafar Fayyaz, Ahmad Imran
doaj   +1 more source

Case Report: A Case of Adult Methylmalonic Acidemia With Bilateral Cerebellar Lesions Caused by a New Mutation in MMACHC Gene

open access: yesFrontiers in Neurology, 2022
Methylmalonic acidemia is a severe heterogeneous disorder of methylmalonate and cobalamin (Cbl; vitamin B12) metabolism with poor prognosis. Around 90% of reported patients with methylmalonic acidemia (MMA) are severe infantile early onset, while cases ...
Shengnan Wang   +4 more
doaj   +1 more source

A rare mutation c.1663G > A (p.A555T) in the MMUT gene associated with mild clinical and biochemical phenotypes of methylmalonic acidemia in 30 Chinese patients

open access: yesOrphanet Journal of Rare Diseases, 2021
Background Methylmalonic acidemia is an inherited organic acid metabolic disease. It involves multiple physiological systems and has variable manifestations. The primary causative gene MMUT carries wide range of mutations, and one of them, c.1663G > A (p.
Lili Liang   +23 more
doaj   +1 more source

Case Report: A Case of Late-Onset Combined Methylmalonic Acidemia and Hyperhomocysteinemia Induced by a Vegetarian Diet

open access: yesFrontiers in Pediatrics, 2022
Methylmalonic acidemia is a rare autosomal recessive metabolic disease. However, because of the atypical clinical symptoms, the type of late-onset methylmalonic academia is often misdiagnosed.
Bei Xu   +5 more
doaj   +1 more source

Impaired Function of a Rare Mutation in the MMUT Gene Causes Methylmalonic Acidemia in a Chinese Patient

open access: yesGenetics Research, 2022
Methylmalonic acidemia (MMA) is an autosomal recessive metabolic disorder mainly caused by mutations in the methylmalonyl coenzyme A mutase (MCM) gene (MMUT) and leads to the reduced activity of MCM.
Siyu Dai   +3 more
doaj   +1 more source

Case report: An asymptomatic mother with an inborn error of cobalamin metabolism (cblC) detected through high homocysteine levels during prenatal diagnosis

open access: yesFrontiers in Nutrition, 2023
BackgroundThe most common disorder of the intracellular cobalamin metabolism pathway is the combined methylmalonic acidemia and homocysteinemia, cblC type (cblC). There is a variation in its clinical spectrum ranging from severe neonatal-onset forms that
Yu-Peng Liu   +14 more
doaj   +1 more source

Incidence of maple syrup urine disease, propionic acidemia, and methylmalonic aciduria from newborn screening data

open access: yesMolecular Genetics and Metabolism Reports, 2018
Incidence for the branched-chain intoxication-type disorders, maple syrup urine disease, propionic acidemia and methlymalonic aciduria is dependent on the population screened.
Kimberly A. Chapman   +3 more
doaj   +1 more source

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