The biochemical defect was not present in the patient's muscle tissue culture. Metabolic measurements and functional evaluation showed a reduced mechanical efficiency during exercise. [unboundmedicine.com]

The biochemical defect was not present in the patient's muscle tissue culture. [moh-it.pure.elsevier.com]

In most cases, mtDNA mutations are heteroplasmic as both normal and mutant mtDNA are present. [em-consulte.com]

In a second aspect, the present invention relates to a drug identified by the method of the present invention for the treatment of diseases involving mitochondrial dysfunction and / or MELAS. [patents.google.com]

In the present study we genetically manipulated yeast strains in order to alter the redox state of CoQ and NADH dehydrogenases to evaluate the consequences on mtDNA (mitochondrial DNA) maintenance. [biochemj.org]

• Hearing Impairment

  MATERNALLY-INHERITED CARDIOMYOPATHY AND HEARING LOSS Is also known as maternally-inherited cardiomyopathy and deafness; trna-lys-related cardiomyopathy-hearing loss syndrome Related symptoms: Ataxia Sensorineural hearing impairment Muscle weakness Peripheral [mendelian.co]

  SUCLA2 patients present with psychomotor retardation, muscle hypotonia, hearing impairment and seizures [ 89 ], whereas those with SUCLG1 mutations have encephalomyopathy and methylmalonic aciduria [ 90 ]. [em-consulte.com]

• Muscle Hypotonia

  SUCLA2 patients present with psychomotor retardation, muscle hypotonia, hearing impairment and seizures [ 89 ], whereas those with SUCLG1 mutations have encephalomyopathy and methylmalonic aciduria [ 90 ]. [em-consulte.com]

• Global Developmental Delay

  MULTIPLE MITOCHONDRIAL DYSFUNCTIONS SYNDROME 2 WITH HYPERGLYCINEMIA; MMDS2 Is also known as ;bola3 deficiency Related symptoms: Autosomal recessive inheritance Seizures Global developmental delay Generalized hypotonia Ataxia SOURCES: ORPHANET OMIM UMLS [mendelian.co]

• Hyperreflexia

  CARDIOMYOPATHY AND HEARING LOSS Is also known as maternally-inherited cardiomyopathy and deafness; trna-lys-related cardiomyopathy-hearing loss syndrome Related symptoms: Ataxia Sensorineural hearing impairment Muscle weakness Peripheral neuropathy Hyperreflexia [mendelian.co]

During a routine diagnostic workup designed to diagnose mitochondrial diseases from patients' muscle biopsy samples, we observed a substantial (50%-66%) decrease of mitochondrial enzymatic activities related to complex I compared with historical values [thefreelibrary.com]

Metabolic workup including plasma aminoacids, acylcarnitine and lactate, urinary organic acids and orotic acid was unrevealing except for low levels of citrulline (9 μmol/l; n.r.17-53). [doi.org]

[…] and / or evaluation of the effectiveness of a treatment for mitochondrial diseases and MELAS. [patents.google.com]

The complete recovery of myopathy with exogenous CoQ(10) supplementation observed in this patient highlights the importance of early identification and treatment of this genetic disorder. [unboundmedicine.com]

It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. [uniprot.org]

Treatment of Kearns Sayre syndrome with coenzyme Q~j. Neurology 1986; 36: 45-53. 7. Bresolin N, Moggio M, Bet L, et al. [docslide.com.br]

[…] deletion Ataxia, Hypogonadism & Choroidal dystrophy: Multiple deletion Isolated Complex I deficit: Nuclear mutations Clinical features: General Nuclear mutations more common than mitochondrial Onset: Childhood; Mean = 4 to 5 months Male:Female = 3.5:1 Prognosis [neuromuscular.wustl.edu]

Given the high morbidity and mortality of MELAS syndrome finding new treatments capable it is necessary to improve the prognosis of the disease. [patents.google.com]

According to the data so far, having a percentage of mutant mtDNA 30% or > 80% is predictive of a reasonable chance of a good or bad prognosis, respectively [ 103 ]. Any results in between these limits would be of even less certain predictive value. [em-consulte.com]

Early-onset cerebellar ataxia 1 G11.1 Spastic ataxia, Charlevoix-Saguenay type 1 ORPHA98 G11.1 270550 Harding ataxia 1 ORPHA1177 G11.1 212895 FRIEDREICH ATAXIA 42 ORPHA95 G11.1 229300 Late-onset cerebellar ataxia 3 G11.2 Sporadic adult-onset ataxia of unknown etiology [catalogue.rd-connect.eu]

Relevant External Links for UQCRB Genetic Association Database (GAD) UQCRB Human Genome Epidemiology (HuGE) Navigator UQCRB Atlas of Genetics and Cytogenetics in Oncology and Haematology: UQCRB No data available for Genatlas for UQCRB Gene A deletion [genecards.org]

[…] mitochondrial respiratory chain complex III deficiency - Isolated ubiquinone-cytochrome C reductase deficiency Classification (Orphanet): - Inborn errors of metabolism - Rare genetic disease Classification (ICD10): - Diseases of the nervous system - Epidemiological [csbg.cnb.csic.es]

The active principles selected in the initial screening in yeast were subsequently evaluated for their ability to enhance the pathophysiological changes in fibroblasts and cybrids MELAS. [patents.google.com]

The identification of the disease-causing genes is not only important for genetic counselling and prenatal diagnosis, but also for a greater understanding of the pathophysiology of these disorders. [em-consulte.com]

Additional studies have involved their use in the possible prevention of, and therapy for, disease conditions. [books.google.com]

(C) Point mutation of tRNA Leu (UUR), which prevents modification of a uridine taurine anticodon wobble position, resulting in an abnormal pattern recognition codon. [patents.google.com]

Antimycin A locks the b hemes in the reduced state by preventing their re-oxidation at the Q i site, which, in turn, causes the steady-state concentrations of the Q o semiquinone to rise, the latter species reacting with oxygen to form superoxide. [en.wikipedia.org]

In this case, prenatal diagnosis based on chorionic villi or amniotic cells represents a rational approach to the prevention of these serious disorders. [em-consulte.com]