Reference values for plasma dipeptidyl-peptidase IV activity and their association with other laboratory parameters.

Abstract:

:In blood, the exopeptidase dipeptidyl-peptidase IV (DPPIV; EC 3.4.14.5) is predominantly present in a soluble form in plasma/serum and as an activation antigen on the membrane of lymphocytes (CD26). It modifies some important biologically active peptides (neuropeptides, chemokines), and a regulatory role for DPPIV/CD26 in immune and endocrine processes has been demonstrated. The aim of this study was to determine reference values for plasma/serum DPPIV activity and to study the association of this activity with a series of biochemical and hematological parameters and baseline characteristics such as age, gender, blood pressure and body mass index. We studied 481 healthy subjects aged between 19 and 61 years. The group consisted of 213 men and 268 women equally divided between the different categories of age. Among the women, 127 were taking hormone therapy (contraception/hormone replacement) and 141 were not. A multiple regression model shows that DPPIV activity decreases significantly with age. The activity in women is slightly lower than in men. We observed an important association with liver, muscle and lipid metabolism-related parameters. In this model, no significant contribution of body mass index, blood pressure or hormone therapy could be stated.

journal_name

Clin Chem Lab Med

authors

Durinx C,Neels H,Van der Auwera JC,Naelaerts K,Scharpe S,De Meester I

doi

10.1515/CCLM.2001.026

keywords:

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

155-9

issue

2

eissn

1434-6621

issn

1437-4331

journal_volume

39

pub_type

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