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Revista Peruana de Medicina Experimental y Salud Publica
versión impresa ISSN 1726-4634
Resumen
GUILLEN-MENDOZA, Daniel y QUIROGA DE MICHELENA, María. First report of alkaptonuria in Peru. Rev. perú. med. exp. salud publica [online]. 2014, vol.31, n.4, pp.793-795. ISSN 1726-4634.
Alkaptonuria is an inborn error of metabolism caused by deficiency of homogentisate 1,2-dioxygenase (HGD) which produces an excess of homogentisic acid (HGA). A case is presented of a 57 year old woman whose urine has turned black since birth. For 9 years she presented a greenish pigmentation in her nail beds that did not improve with antifungal treatments, and in the last 9 months she showed worsening large joint osteoarthritis. This situation forced her to use a wheelchair due to the intense pain caused by osteoarthritis in her hips and lumbar spine. From the description of symptoms, her urinary HGA was measured which confirmed the diagnosis of alkaptonuria. Analgesics and a diet without tyrosine-containing products were suggested. The patient was also referred for hip replacement surgery. This is the first reported case of alkaptonuria in Peru.
Palabras clave : Alkaptonuria; Metabolism; Homogentisic acid.