A metabolic study in a case of hyperornithinemia with gyrate atrophy of choroid and retina is presented. It is demonstrated that the lysine-ornithine antagonism is a physiological, safe, easy to handle therapeutic tool in hyperornithinemia. [ncbi.nlm.nih.gov]

Individuals with this disorder can present with symptoms during infancy, but the majority present during adulthood. [sema4genomics.com]

RESULTS:: An 18-year-old Indian boy presented with progressive diminution of vision, night blindness, lenticular opacities, and midperipheral chorioretinal atrophy. [biomedsearch.com]

There does not appear to be a genotype-phenotype correlation for this presentation, inasmuch as the only other reported patient presenting with this picture had two different point mutations. [journals.lww.com]

• Developmental Delay

  Symptoms vary from seizures, vomiting with protein intolerance, and developmental delay to the most severe form with coma due to hyperammonemia. (Source: Orphanet) No information available from this source. [treatable-id.org]

  Some children with hyperornithinemia-hyperammonemia-homocitrullinuria syndrome (HHH) have developmental delays. [babysfirsttest.org]

  There was a history of developmental delay and moderate hypotonia. She was not walking or standing and was babbling but had no words. She had no history of seizures or abnormal movements. She was drinking a soy formula but refusing solid foods. [journals.lww.com]

  HHH syndrome, even rarer than GA with only about 50 reported cases, is a rare inborn error of metabolism associated with growth and developmental delays, learning disabilities, and, in most cases, ataxia. [path.upmc.edu]

  Alternatively, patients show a chronic course with aversion for protein rich foods, developmental delay/intellectual disability, myoclonic seizures, ataxia and pyramidal dysfunction. [springermedizin.de]

• Blurred Vision

  Adults with the disorder present with vomiting, lack of energy, coordination difficulties, confusion, and blurred vision after eating high-protein meals or during stressful times. [sema4genomics.com]

• Clumsiness

  At the age of 6 years, the boy had no acute encephalopathy or pyramidal signs, but did exhibit mild clumsiness and subtle gait ataxia (only evident on tandem walking). [hkmj.org]

These two cases demonstrate that metabolic profiling, including the ammonia level, should be included in the initial workup for any infant with unexplained prolonged liver dysfunction and may provide a clue to a possible underlying defect in the urea [hkmj.org]

• Hepatic Necrosis

  The liver biopsy in our second patient did not show any signs of hepatic necrosis. [journals.lww.com]

As in the first edition, treatment is discussed extensively. Details are given for dietary treatment and drug administrations in acute situations, during infections and in maintenance treatment. [books.google.de]

Some children still have high ammonia levels in their blood even with treatment. These individuals may need to seek treatment in a hospital to remove the ammonia from their blood. [babysfirsttest.org]

A prompt diagnosis of HHH syndrome proved of great importance in instituting appropriate treatment. [journals.lww.com]

It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice . [uniprot.org]

(Outcomes/Resolutions) The prognosis of Gyrate Atrophy of Choroid and Retina depends upon the severity of the signs and symptoms, which may vary from mild to severe In some cases, with appropriate treatment, an excellent prognosis is achieved; intellectual [dovemed.com]

Prognosis - Hyperornithinemia Not supplied. [checkorphan.org]

The prognosis of the disorder is variable; some affected individuals only have mild neurocognitive impairment while others will continue to progressively worsen despite early detection and metabolic control. [sema4genomics.com]

Prognosis of HHH syndrome is variable, ranging from a severe course with disabling manifestations to milder variants compatible with an almost normal life. [springermedizin.de]

(Etiology) Gyrate Atrophy of Choroid and Retina is a genetic disorder that is inherited in an autosomal recessive manner. It is classified as a type of choroidal dystrophy. [dovemed.com]

Relevant External Links for SLC25A15 Genetic Association Database (GAD) SLC25A15 Human Genome Epidemiology (HuGE) Navigator SLC25A15 Atlas of Genetics and Cytogenetics in Oncology and Haematology: SLC25A15 No data available for Genatlas for SLC25A15 Gene [genecards.org]

Epidemiology: There are more than 150 biochemically-documented cases known, with the highest rate in Finland (2). [path.upmc.edu]

The pathophysiological repercussions of our results as well as the recommendations for conscientious therapeutical management are discussed. [infona.pl]

For more detailed information, particularly with respect to pathophysiology and genetics, we highly recommend the seventh edition of The Metabolic Basis of Inherited Disease, by Charles R. Scriver et al. (McGraw-Hill, 1995). [books.google.de]

Pathophysiology Ornithine translocase deficiency has an autosomal recessive pattern of inheritance. Mutations in the SLC25A15 gene cause ornithine translocase deficiency. [dict.eudic.net]

Pathophysiology [ edit ] Ornithine translocase deficiency has an autosomal recessive pattern of inheritance. Mutations in SLC25A15 cause ornithine translocase deficiency. [en.wikipedia.org]

Early intervention allows almost normal life span but the prognosis is variable, suggesting the need for a better understanding of the still unsolved pathophysiology of the disease. Zusatzmaterial Additional file 1: Table S1. [springermedizin.de]

Overview A very rare inherited metabolic disorder where ammonia builds up in the body due to a defect in the transport of ornithine which prevents ammonia being converted to urea and being excreted through the urine. [checkorphan.org]

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