Hypervalinemia

Hypervalinemia
Valine
ICD-9	270.3
OMIM	277100

Hypervalinemia has an autosomal recessive pattern of inheritance.

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Hypervalinemia (occasionally called valinemia) is a rare autosomal recessive metabolic disorder in which urinary and serum levels of the branched-chain amino acid valine are elevated, without related elevation of the branched-chain amino acids leucine and isoleucine.

It is caused by a deficiency of the enzyme valine transaminase.

Presenting in infancy, symptoms include lack of appetite, vomiting, dehydration, hypotonia and failure to thrive.

See also

• Isovaleric acidemia
• Maple syrup urine disease
• Propionic acidemia

References

• Dancis J, Hutzler J, Tada K, Wada Y, Morikawa T, Arakawa T (1967). "Hypervalinemia. A defect in valine transamination". Pediatrics 39 (6): 813–817. PMID 6067402.
• Tada K, Wada Y, Arakawa T (1967). "Hypervalinemia. Its metabolic lesion and therapeutic approach". Am. J. Dis. Child. 113 (1): 64–67. PMID 6066688.
• Wada Y, Tada K, Minagawa A, Yoshida T, Morikawa T, Okamura T (1963). "Idiopathic hypervalinemia: probably a new entity of inborn error of valine metabolism". Tohoku J. Exp. Med. 81: 46–55. PMID 14077060.