International archives of allergy and immunology · 2009
Tryptase is not cleared by the kidneys into the urine.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Simon Michael R, Jan Mindy, Yee Jerry, Nori Uday S, Hu Jiang, Akin Cem, Schwartz Lawrence B
Аннотация
BACKGROUND: Patients with chronic kidney disease have been reported to have increased concentrations of blood tryptase. Detection of tryptase in the urine of healthy subjects has been reported.
OBJECTIVE: The objective is to determine whether tryptase is indeed cleared by the kidneys.
METHODS: Blood and urine collections were performed in healthy and systemic mastocytosis subjects. Total and mature tryptase concentrations in blood and total tryptase concentrations in urine were determined.
RESULTS: Total tryptase levels in urine were below the limit of detection in both healthy subjects and those with systemic mastocytosis, even after concentrating the urine 10-fold. Thus, both mature and protryptase levels in urine are <0.2 ng/ml.
CONCLUSION: Tryptase is not cleared by the kidneys into the urine.
OBJECTIVE: The objective is to determine whether tryptase is indeed cleared by the kidneys.
METHODS: Blood and urine collections were performed in healthy and systemic mastocytosis subjects. Total and mature tryptase concentrations in blood and total tryptase concentrations in urine were determined.
RESULTS: Total tryptase levels in urine were below the limit of detection in both healthy subjects and those with systemic mastocytosis, even after concentrating the urine 10-fold. Thus, both mature and protryptase levels in urine are <0.2 ng/ml.
CONCLUSION: Tryptase is not cleared by the kidneys into the urine.