Clinical spectrum of early onset “Mediterranean” (homozygous p.P131L mutation) mitochondrial neurogastrointestinal encephalomyopathy
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
John Wiley and Sons Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an autosomal recessive mitochondrial disorder characterized by cumulative and progressive gastrointestinal and neurological findings. This retrospective observational study, aimed to explore the time of presentation, diagnosis and clinical follow-up of 13 patients with a confirmed MNGIE disease of Mediterranean origin. The mean age of symptom onset was 7 years (6 months?21 years) and the average diagnosis age was 15.4 years ±8.4. Four of 13 patients (30%) died before 30 years at the mean age of 19.7 years ±6.8. Cachexia and gastrointestinal symptoms were observed in all patients (100%). The mean body mass index standard deviation score at diagnosis was 4.8 ± 2.8. At least three subocclusive episodes were presented in patients who died in last year of their life. The main neurological symptom found in most patients was peripheral neuropathy (92%). Ten patients (77%) had leukoencephalopathy and the remaining three patients without were under 10 years of age. The new homozygous “Mediterranean” TYMP mutation, p.P131L (c.392 C > T) was associated with an early presentation and poor prognosis in nine patients (69%) from five separates families. Based on the observations from this Mediterranean MNGIE cohort, we propose that the unexplained abdominal pain combined with cachexia is an indicator of MNGIE. High-platelet counts and nerve conduction studies may be supportive laboratory findings and the frequent subocclusive episodes could be a negative prognostic factor for mortality. Finally, the homozygous p.P131L (c.392 C > T) mutation could be associated with rapid progressive disease with poor prognosis. © 2022 The Authors. JIMD Reports published by John Wiley & Sons Ltd on behalf of SSIEM.
Açıklama
Anahtar Kelimeler
clinical overview, mitochondrial neurogastrointestinal encephalomyopathy, thymidine phosphorylase, abdominal pain, adolescent, adult, anorexia, Article, body mass, cachexia, child, clinical article, disease exacerbation, echocardiography, female, follow up, gastrointestinal symptom, gene mutation, gene sequence, hearing impairment, hepatomegaly, human, leukoencephalopathy, limb weakness, male, mitral valve prolapse, MNGIE syndrome, nausea, nuclear magnetic resonance imaging, observational study, peripheral neuropathy, platelet count, pregnancy, preschool child, retrospective study, school child, thrombocytosis, tricuspid valve regurgitation, young adult
Kaynak
JIMD Reports
WoS Q Değeri
Scopus Q Değeri
Q3
Cilt
63
Sayı
5
