Relationships between plasma adiponectin and blood cells, hepatopancreatic enzymes in women.

Adiponectin, which is secreted specifically from adipocyte, is thought to play a key role in the metabolic syndrome. We studied the associations of plasma adiponectin concentrations with blood cells and hepatopancreatic enzymes in 339 women aged 54.0 +/- 0.8 (mean +/- SE) years. Plasma adiponectin before and after adjustment for body composition or calculated insulin resistance increased in slight anemic women (372.6 +/- 2.6 x 10(4)/mm3) compared with non-anemic subjects (471.1 +/- 1.7) (all p < 0.0001), and were inversely associated with red blood cells (RBC), hemoglobin, hematocrit, white blood cells and platelet values (p < 0.0001-0.02), independent of age, diastolic blood pressure, body mass index, serum triglyceride, insulin resistance or blood urea nitrogen. Age and adiponectin/body fat mass (%) were negative, and blood pressure and insulin resistance were positive significant independent determinants of RBC in step-wise regression analysis. Moreover, adiponectin before and after adjustment were inversely associated with serum ALAT, gammaGTP and ChE, and positively with amylase levels (p < 0.0001-0.02). These results indicate the possibility that increased adiponectin may contribute to the suppressive bone marrow function in vivo. Combined with the leptin's data, adipocyte derived proteins were related to the hematopoiesis, therefore it has shown the possible existence of adipose tissue/ bone marrow function linkage more clearly. Furthermore, hepatopancreatic enzyme associations with this protein may indicate the possibility that adiponectin will regulate the hepatopancreatic function in health and disease.