Journal
MOLECULAR GENETICS AND METABOLISM
Volume 77, Issue 3, Pages 226-229Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S1096-7192(02)00120-8
Keywords
ACP1; lipid levels; obesity; LMPTP; protein tyrosine phosphatase; metabolic syndrome
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The acid phosphatase (ACP1) locus codes for a low molecular weight protein tyrosine phosphatase (LMPTP) that is found ubiquitously in human tissues. The *A allele of the ACPI gene is associated with lower total enzymatic activity than the *B and *C alleles. An association between the *A allele and extreme values of body-mass-index (BMI) and dyslipidemia has previously been described in several samples of obese subjects from the Italian population. In the present study, we investigated the relationship between ACPI *A allele genotypes (*A/*A, *A/*B, and *A/*C) and non-*A allele genotypes (*B/*B, *B/*C, and *C/*C) and metabolic variables in 277 Caucasian post-menopausal subjects consisting of 82 non-obese subjects (BMI less than or equal to 29), 60 moderately obese (BMI 3034) and 135 very obese (BMI greater than or equal to 35) subjects. ACPI genotypes were found to be significantly associated with total cholesterol (p less than or equal to 0.002) and triglyceride (p less than or equal to 0.001) levels in the obese and very obese women only. The significantly lower levels of triglycerides in *A carriers in this group suggest a protective effect of the *A allele against hypertriglyceridemia. It has been unclear why some individuals who gain weight develop dyslipidemia and other aspects of the metabolic syndrome while others do not. The present study suggests that those who gain weight and carry the ACP1*A allele may be partially protected against developing the metabolic syndrome. The confirmation of ACP1 as a modifier gene of the metabolic complications could open the door to the prevention of the lethal complications of obesity. (C) 2002 Elsevier Science (USA). All rights reserved.
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