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Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to MTO1 deficiency(COXPD10)

MedGen UID:
1664257
Concept ID:
C4749921
Disease or Syndrome
Synonyms: CARDIOMYOPATHY, INFANTILE HYPERTROPHIC MITOCHONDRIAL, AND LACTIC ACIDOSIS; Combined oxidative phosphorylation deficiency 10
SNOMED CT: COXPD10 - combined oxidative phosphorylation defect type 10 (771478008); Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to MTO1 deficiency (771478008); Combined oxidative phosphorylation defect type 10 (771478008); Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to mitochondrial transfer ribonucleic acid translation optimization 1 deficiency (771478008)
Modes of inheritance:
Unknown inheritance
MedGen UID:
989040
Concept ID:
CN307042
Finding
Source: Orphanet
Hereditary clinical entity whose mode of inheritance is unknown.
 
Gene (location): MTO1 (6q13)
 
Monarch Initiative: MONDO:0013865
OMIM®: 614702
Orphanet: ORPHA314637

Definition

Combined oxidative phosphorylation deficiency-10 (COXPD10) is an autosomal recessive disorder resulting in variable defects of mitochondrial oxidative respiration. Affected individuals present in infancy with hypertrophic cardiomyopathy and lactic acidosis. The severity is variable, but can be fatal in the most severe cases (summary by Ghezzi et al., 2012). For a discussion of genetic heterogeneity of combined oxidative phosphorylation deficiency, see COXPD1 (609060). [from OMIM]

Clinical features

From HPO
Hypertrophic cardiomyopathy
MedGen UID:
2881
Concept ID:
C0007194
Disease or Syndrome
Hypertrophic cardiomyopathy (HCM) is defined by the presence of increased ventricular wall thickness or mass in the absence of loading conditions (hypertension, valve disease) sufficient to cause the observed abnormality.
Cardiomegaly
MedGen UID:
5459
Concept ID:
C0018800
Finding
Increased size of the heart, clinically defined as an increased transverse diameter of the cardiac silhouette that is greater than or equal to 50% of the transverse diameter of the chest (increased cardiothoracic ratio) on a posterior-anterior projection of a chest radiograph or a computed tomography.
Pericardial effusion
MedGen UID:
10653
Concept ID:
C0031039
Disease or Syndrome
Accumulation of fluid within the pericardium.
Bradycardia
MedGen UID:
140901
Concept ID:
C0428977
Finding
A slower than normal heart rate (in adults, slower than 60 beats per minute).
Fetal growth restriction
MedGen UID:
4693
Concept ID:
C0015934
Pathologic Function
An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.
Small for gestational age
MedGen UID:
65920
Concept ID:
C0235991
Finding
Smaller than normal size according to sex and gestational age related norms, defined as a weight below the 10th percentile for the gestational age.
Failure to thrive
MedGen UID:
746019
Concept ID:
C2315100
Disease or Syndrome
Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.
Ascites
MedGen UID:
416
Concept ID:
C0003962
Disease or Syndrome
Accumulation of fluid in the peritoneal cavity.
Feeding difficulties
MedGen UID:
65429
Concept ID:
C0232466
Finding
Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.
Dystonic disorder
MedGen UID:
3940
Concept ID:
C0013421
Sign or Symptom
An abnormally increased muscular tone that causes fixed abnormal postures. There is a slow, intermittent twisting motion that leads to exaggerated turning and posture of the extremities and trunk.
Spasticity
MedGen UID:
7753
Concept ID:
C0026838
Sign or Symptom
A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes.
Seizure
MedGen UID:
20693
Concept ID:
C0036572
Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterised by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Global developmental delay
MedGen UID:
107838
Concept ID:
C0557874
Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Poor speech
MedGen UID:
341172
Concept ID:
C1848207
Finding
Hypotonia
MedGen UID:
10133
Concept ID:
C0026827
Finding
Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.
Pleural effusion
MedGen UID:
10805
Concept ID:
C0032227
Disease or Syndrome
The presence of an excessive amount of fluid in the pleural cavity.
Lactic acidosis
MedGen UID:
1717
Concept ID:
C0001125
Disease or Syndrome
An abnormal buildup of lactic acid in the body, leading to acidification of the blood and other bodily fluids.
Hypoglycemia
MedGen UID:
6979
Concept ID:
C0020615
Disease or Syndrome
A decreased concentration of glucose in the blood.
Metabolic acidosis
MedGen UID:
65117
Concept ID:
C0220981
Pathologic Function
Metabolic acidosis (MA) is characterized by a fall in blood pH due to a reduction of serum bicarbonate concentration. This can occur as a result of either the accumulation of acids (high anion gap MA) or the loss of bicarbonate from the gastrointestinal tract or the kidney (hyperchloremic MA). By definition, MA is not due to a respirary cause.
Hyper-beta-alaninemia
MedGen UID:
75702
Concept ID:
C0268630
Disease or Syndrome
An increased concentration of alanine in the blood.
Hyperammonemia
MedGen UID:
1802066
Concept ID:
C5574662
Laboratory or Test Result
An increased concentration of ammonia in the blood.
Oligohydramnios
MedGen UID:
86974
Concept ID:
C0079924
Pathologic Function
Diminished amniotic fluid volume in pregnancy.
Optic atrophy
MedGen UID:
18180
Concept ID:
C0029124
Disease or Syndrome
Atrophy of the optic nerve. Optic atrophy results from the death of the retinal ganglion cell axons that comprise the optic nerve and manifesting as a pale optic nerve on fundoscopy.
Decreased activity of mitochondrial complex III
MedGen UID:
460434
Concept ID:
C3149083
Finding
A reduction in the activity of the mitochondrial respiratory chain complex III, which is part of the electron transport chain in mitochondria.

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  

Recent clinical studies

Etiology

O'Byrne JJ, Tarailo-Graovac M, Ghani A, Champion M, Deshpande C, Dursun A, Ozgul RK, Freisinger P, Garber I, Haack TB, Horvath R, Barić I, Husain RA, Kluijtmans LAJ, Kotzaeridou U, Morris AA, Ross CJ, Santra S, Smeitink J, Tarnopolsky M, Wortmann SB, Mayr JA, Brunner-Krainz M, Prokisch H, Wasserman WW, Wevers RA, Engelke UF, Rodenburg RJ, Ting TW, McFarland R, Taylor RW, Salvarinova R, van Karnebeek CDM
Mol Genet Metab 2018 Jan;123(1):28-42. Epub 2017 Nov 15 doi: 10.1016/j.ymgme.2017.11.003. PMID: 29331171Free PMC Article

Diagnosis

O'Byrne JJ, Tarailo-Graovac M, Ghani A, Champion M, Deshpande C, Dursun A, Ozgul RK, Freisinger P, Garber I, Haack TB, Horvath R, Barić I, Husain RA, Kluijtmans LAJ, Kotzaeridou U, Morris AA, Ross CJ, Santra S, Smeitink J, Tarnopolsky M, Wortmann SB, Mayr JA, Brunner-Krainz M, Prokisch H, Wasserman WW, Wevers RA, Engelke UF, Rodenburg RJ, Ting TW, McFarland R, Taylor RW, Salvarinova R, van Karnebeek CDM
Mol Genet Metab 2018 Jan;123(1):28-42. Epub 2017 Nov 15 doi: 10.1016/j.ymgme.2017.11.003. PMID: 29331171Free PMC Article

Prognosis

Kopajtich R, Nicholls TJ, Rorbach J, Metodiev MD, Freisinger P, Mandel H, Vanlander A, Ghezzi D, Carrozzo R, Taylor RW, Marquard K, Murayama K, Wieland T, Schwarzmayr T, Mayr JA, Pearce SF, Powell CA, Saada A, Ohtake A, Invernizzi F, Lamantea E, Sommerville EW, Pyle A, Chinnery PF, Crushell E, Okazaki Y, Kohda M, Kishita Y, Tokuzawa Y, Assouline Z, Rio M, Feillet F, Mousson de Camaret B, Chretien D, Munnich A, Menten B, Sante T, Smet J, Régal L, Lorber A, Khoury A, Zeviani M, Strom TM, Meitinger T, Bertini ES, Van Coster R, Klopstock T, Rötig A, Haack TB, Minczuk M, Prokisch H
Am J Hum Genet 2014 Dec 4;95(6):708-20. Epub 2014 Nov 26 doi: 10.1016/j.ajhg.2014.10.017. PMID: 25434004Free PMC Article
Baruffini E, Dallabona C, Invernizzi F, Yarham JW, Melchionda L, Blakely EL, Lamantea E, Donnini C, Santra S, Vijayaraghavan S, Roper HP, Burlina A, Kopajtich R, Walther A, Strom TM, Haack TB, Prokisch H, Taylor RW, Ferrero I, Zeviani M, Ghezzi D
Hum Mutat 2013 Nov;34(11):1501-9. Epub 2013 Sep 17 doi: 10.1002/humu.22393. PMID: 23929671Free PMC Article

Clinical prediction guides

O'Byrne JJ, Tarailo-Graovac M, Ghani A, Champion M, Deshpande C, Dursun A, Ozgul RK, Freisinger P, Garber I, Haack TB, Horvath R, Barić I, Husain RA, Kluijtmans LAJ, Kotzaeridou U, Morris AA, Ross CJ, Santra S, Smeitink J, Tarnopolsky M, Wortmann SB, Mayr JA, Brunner-Krainz M, Prokisch H, Wasserman WW, Wevers RA, Engelke UF, Rodenburg RJ, Ting TW, McFarland R, Taylor RW, Salvarinova R, van Karnebeek CDM
Mol Genet Metab 2018 Jan;123(1):28-42. Epub 2017 Nov 15 doi: 10.1016/j.ymgme.2017.11.003. PMID: 29331171Free PMC Article
Kopajtich R, Nicholls TJ, Rorbach J, Metodiev MD, Freisinger P, Mandel H, Vanlander A, Ghezzi D, Carrozzo R, Taylor RW, Marquard K, Murayama K, Wieland T, Schwarzmayr T, Mayr JA, Pearce SF, Powell CA, Saada A, Ohtake A, Invernizzi F, Lamantea E, Sommerville EW, Pyle A, Chinnery PF, Crushell E, Okazaki Y, Kohda M, Kishita Y, Tokuzawa Y, Assouline Z, Rio M, Feillet F, Mousson de Camaret B, Chretien D, Munnich A, Menten B, Sante T, Smet J, Régal L, Lorber A, Khoury A, Zeviani M, Strom TM, Meitinger T, Bertini ES, Van Coster R, Klopstock T, Rötig A, Haack TB, Minczuk M, Prokisch H
Am J Hum Genet 2014 Dec 4;95(6):708-20. Epub 2014 Nov 26 doi: 10.1016/j.ajhg.2014.10.017. PMID: 25434004Free PMC Article
Baruffini E, Dallabona C, Invernizzi F, Yarham JW, Melchionda L, Blakely EL, Lamantea E, Donnini C, Santra S, Vijayaraghavan S, Roper HP, Burlina A, Kopajtich R, Walther A, Strom TM, Haack TB, Prokisch H, Taylor RW, Ferrero I, Zeviani M, Ghezzi D
Hum Mutat 2013 Nov;34(11):1501-9. Epub 2013 Sep 17 doi: 10.1002/humu.22393. PMID: 23929671Free PMC Article

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