期刊
METABOLITES
卷 13, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/metabo13040518
关键词
inborn errors of metabolism; organic aciduria; pregnancy; postpartum
Organic acidurias are rare inherited metabolic disorders caused by enzyme or transport protein deficiencies in metabolic pathways, resulting in the accumulation and excretion of organic acids. Different organic acidurias have varying clinical features and can lead to severe complications. This article provides an overview of the metabolic considerations for pregnancy in patients with organic acidurias, as pregnancy causes significant anatomical, biochemical, and physiological changes that can impact these individuals and their babies.
Organic acidurias are a heterogeneous group of rare inherited metabolic disorders (IMDs) caused by a deficiency of an enzyme or a transport protein involved in the intermediary metabolic pathways. These enzymatic defects lead to an accumulation of organic acids in different tissues and their subsequent excretion in urine. Organic acidurias include maple syrup urine disease, propionic aciduria, methylmalonic aciduria, isovaleric aciduria, and glutaric aciduria type 1. Clinical features vary between different organic acid disorders and may present with severe complications. An increasing number of women with rare IMDs are reporting successful pregnancy outcomes. Normal pregnancy causes profound anatomical, biochemical and physiological changes. Significant changes in metabolism and nutritional requirements take place during different stages of pregnancy in IMDs. Foetal demands increase with the progression of pregnancy, representing a challenging biological stressor in patients with organic acidurias as well as catabolic states post-delivery. In this work, we present an overview of metabolic considerations for pregnancy in patients with organic acidurias.
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