Mutation in human CLPX elevates levels of δ-aminolevulinate synthase and protoporphyrin IX to promote erythropoietic protoporphyria [PDF]
, 2017 Loss-of-function mutations in genes for heme biosynthetic enzymes can give rise to congenital porphyrias, eight forms of which have been described. The genetic penetrance of the porphyrias is clinically variable, underscoring the role of additional ...
Baker, Tania +14 more
core +3 more sources
Kearns-Sayre's syndrome developing in a boy who survived Pearson's syndrome caused by mitochondrial DNA deletion [PDF]
, 1992 Documenta Ophthalmologica 1992, Volume 82, Issue 1-2, pp 73-79 Kearns-Sayre's syndrome developing in a boy who survived Pearson's syndrome caused by mitochondrial DNA deletion Dr H. J. Simonsz, K. Bärlocher, A.
A Rötig +7 more
core +8 more sources
Zinc containing dental fixative causing copper deficiency myelopathy [PDF]
, 2017 A 62-year-old male, previously well, was referred to neurology clinic following 6 months history of worsening lower limbs instability, paraesthesia, pain and weakness rendering him housebound.
Abdul-Rahim, Azmil H. +2 more
core +1 more source
Case report: Muscle involvement in a Chinese patient with TRNT1-related disorder
Frontiers in Pediatrics, 2023 The TRNT1 gene encodes tRNA nucleotidyltransferase 1, which catalyzes the addition of cytosine-cytosine-adenosine (CCA) to the ends of cytoplasmic and mitochondrial tRNAs.
Cui-Jie Wei +8 more
doaj +1 more source
The Eye on Mitochondrial Disorders. [PDF]
, 2015 Ophthalmologic manifestations of mitochondrial disorders are frequently neglected or overlooked because they are often not regarded as part of the phenotype.
Daruich, A. +2 more
core +2 more sources
Mutations in the mitochondrial cysteinyl-tRNA synthase gene, CARS2, lead to a severe epileptic encephalopathy and complex movement disorder [PDF]
, 2015 Background: Mitochondrial disease is often suspected in cases of severe epileptic encephalopathy especially when a complex movement disorder, liver involvement and progressive developmental regression are present.
Collins, Abigail E +13 more
core +2 more sources
Evaluating the Patient-Reported Outcomes Measurement Information System scales in acute intermittent porphyria. [PDF]
, 2020 PurposeAcute intermittent porphyria (AIP) is a rare inborn error of heme biosynthesis characterized by life-threatening acute attacks. Few studies have assessed quality of life (QoL) in AIP and those that have had small sample sizes and used tools that ...
Anderson, Karl E +14 more
core +1 more source
Scientific Reports, 2022 Acquired sideroblastic anemia, characterized by bone marrow ring sideroblasts (RS), is predominantly associated with myelodysplastic syndrome (MDS). Although somatic mutations in splicing factor 3b subunit 1 (SF3B1), which is involved in the RNA splicing
Tetsuro Ochi +13 more
doaj +1 more source
Mitochondrial DNA with a Large-Scale Deletion Causes Two Distinct Mitochondrial Disease Phenotypes in Mice [PDF]
, 2013 Studies in patients have suggested that the clinical phenotypes of some mitochondrial diseases might transit from one disease to another (e.g., Pearson syndrome [PS] to Kearns-Sayre syndrome) in single individuals carrying mitochondrial (mt) DNA with a ...
Hayashi Jun-Ichi +6 more
core +1 more source
Erythropoiesis in health and disease: Distinguishing defective and ineffective erythropoiesis
HemaSphere, Volume 10, Issue 1, January 2026.Abstract Erythropoiesis is a finely regulated process ensuring continuous red blood cell production to maintain oxygen delivery. Disruptions in this process give rise to defective erythropoiesis, characterized by impaired lineage commitment and progenitor development, and ineffective erythropoiesis (IE), marked by expansion of erythroid progenitors ...
Sara El Hoss +3 more
wiley +1 more source