Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine

Mr. Editor. In several countries, newborns are screened for tyrosinemia type 1 using tyrosine as a primary marker. In some situations, elevated blood tyrosine levels are discovered due to elevated tyrosine on a urine metabolic screen. In Peru, some pediatric patients suspected of having a genetic...

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Main Author: Manuel André Virú-Loza
Format: Article
Language:Spanish
Published: Universidad Ricardo Palma 2023-01-01
Series:Revista de la Facultad de Medicina Humana
Subjects:
Online Access:http://revistas.urp.edu.pe/index.php/RFMH/article/view/3620
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author Manuel André Virú-Loza
author_facet Manuel André Virú-Loza
author_sort Manuel André Virú-Loza
collection DOAJ
description Mr. Editor. In several countries, newborns are screened for tyrosinemia type 1 using tyrosine as a primary marker. In some situations, elevated blood tyrosine levels are discovered due to elevated tyrosine on a urine metabolic screen. In Peru, some pediatric patients suspected of having a genetic condition (inborn error of metabolism) undergo a metabolic screening in urine that includes - among other things - the qualitative detection of tyrosine. However, when there are high levels of tyrosine in the urine this does not always mean that the patient has a genetic condition. Hypertyrosinemia is most often non-genetic in origin. Therefore, it is important to review the non-genetic causes of hypertyrosinemia and thus avoid potential misinterpretations of this finding.
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spelling doaj.art-f571248c627a4e8e90e47f02dcf531f12023-04-11T15:59:18ZspaUniversidad Ricardo PalmaRevista de la Facultad de Medicina Humana1814-54692308-05312023-01-0123114314410.25176/RFMH.v23i1.3620Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosineManuel André Virú-Loza0https://orcid.org/0000-0001-6637-6463Hospital Nacional Edgardo Rebagliati Martins.Mr. Editor. In several countries, newborns are screened for tyrosinemia type 1 using tyrosine as a primary marker. In some situations, elevated blood tyrosine levels are discovered due to elevated tyrosine on a urine metabolic screen. In Peru, some pediatric patients suspected of having a genetic condition (inborn error of metabolism) undergo a metabolic screening in urine that includes - among other things - the qualitative detection of tyrosine. However, when there are high levels of tyrosine in the urine this does not always mean that the patient has a genetic condition. Hypertyrosinemia is most often non-genetic in origin. Therefore, it is important to review the non-genetic causes of hypertyrosinemia and thus avoid potential misinterpretations of this finding.http://revistas.urp.edu.pe/index.php/RFMH/article/view/3620hypertyrosinemia
spellingShingle Manuel André Virú-Loza
Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
Revista de la Facultad de Medicina Humana
hypertyrosinemia
title Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
title_full Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
title_fullStr Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
title_full_unstemmed Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
title_short Nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
title_sort nongenetic causes of hypertyrosinemia that must be considered when interpreting a finding of elevated urinary tyrosine
topic hypertyrosinemia
url http://revistas.urp.edu.pe/index.php/RFMH/article/view/3620
work_keys_str_mv AT manuelandreviruloza nongeneticcausesofhypertyrosinemiathatmustbeconsideredwheninterpretingafindingofelevatedurinarytyrosine