Late-onset ornithine transcarbamylase deficiency caused by a somatic mosaic mutation
نویسندگان
چکیده
منابع مشابه
Fatal hyperammonaemia due to late-onset ornithine transcarbamylase deficiency.
In this case report we describe a 67-year-old male, admitted to the ICU with pneumonia who unexpectedly developed a fatal coma due to hyperammonaemia. At postmortem the diagnosis late-onset ornithine transcarbamylase deficiency was made. The non-specific clinical presentation, the rapid deterioration and incidentally the fatal outcome all underline the importance of recognition and knowledge of...
متن کاملUnder recognition of late onset ornithine transcarbamylase deficiency.
Late onset ornithine transcarbamylase deficiency (McKusick 311250) is reported in four Finnish patients, two boys and two heterozygous girls. The subtle onset and course of ornithine transcarbamylase deficiency emphasises the need for plasma ammonia and amino acid measurements in clinical situations suggesting a disorder of this nature.
متن کاملSevere Hyperammonemia in Late-Onset Ornithine Transcarbamylase Deficiency Triggered by Steroid Administration
Ornithine transcarbamylase deficiency (OTCD) is a rare X-linked disorder of urea synthesis leading to hyperammonemia. Several late-onset cases have been reported. Undiagnosed and untreated patients are at the risk of death or suffering from irreversible sequelae. We describe a 56-year-old patient who presented with acute encephalopathy after steroid treatment. Hyperammonemia due to OTCD was dia...
متن کاملAsymptomatic and late-onset ornithine transcarbamylase deficiency caused by a A208T mutation: clinical, biochemical and DNA analyses in a four-generation family.
We describe a 4-generation family in which a previously healthy 10-year-old boy died of late-onset ornithine transcarbamylase (OTC) deficiency. Pedigree analysis and allopurinol loading tests in female relatives were not informative. A missense mutation (A208T) in the OTC gene was detected in the deceased patient and in several clinically healthy male and female relatives, the oldest male being...
متن کاملOrnithine Transcarbamylase Deficiency
Accumulation of ammonia in body tissues most commonly occurs in hepatic failure. However, it may also result from a specific deficiency of an enzyme of the urea cycle (Fig., 1). Severe hyperammonaemia has been reported with deficiencies of carbamyl phosphate synthetase (Freeman et al., 1964) and ornithine transcarbamylase (Russell et al., 1962; Levin and Russell, 1967). Some increase in blood a...
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ژورنال
عنوان ژورنال: Human Genome Variation
سال: 2018
ISSN: 2054-345X
DOI: 10.1038/s41439-018-0022-x