Prevalence of Metabolic Syndrome in Rural Populace: A Study of Its Association With Adipocytokines / 日本農村医学会雑誌

ABSTRACT

The purpose of this study was to shed light on the prevalence of the metabolic syndrome (MetS) in a rural community and examine whether or not serum adipocytokine levels are associated with the Diagnostic Criteria for MetS and how many MetS components laid down in the standards subjects have. The subjects were 2,858 people (1,744men and 1,114 women, mean age 49.8+/-9.9 yrs) who had participated in our health screening program between April and December, 2005. After obtaining informed consent from them, we measured serum leptin, adiponectin and high-sensitivity C-reactive protein levels, while performing routine blood tests. In the present study, these measurements were used in combination with the number of MetS components applicable to the conditions of our subjects. Two hundred men (11.5%) and 25 women (2.2%) were diagnosed with MetS. The number of MetS women was extremely small. Those women who were above the standard waist circumference of above 90cm accounted for 8.7% of the total. Thus, most women subjects were excluded as MetS candidates here. The leptin levels of the MetS group were higher than those of the non-MetS group in accordance with the number of applicable components in the diagnostic standards for MetS. Especially, the MetS group which met three MetS criteria showed significantly high leptin levels (p/5=0.0081) of 5.26+/-1.86 (ng/ml) compared to 3.31+/-1.44 (ng/ml) of the non-MetS group with waist circumference below 85cm. On the other hand, no significant difference was noted between the groups in adiponectin level. However, in contrast to leptin levels, adiponectin levels were lower in the group having three MetS components than the non-MetS group 4.37+/-1.57 (ng/ml) as against 5.52+/-3.34 (ng/ml). High-sensitivity CRP levels did not show any significant difference between the two groups.As regards the cutoff value of women's waist circumference, further study needs to be done. It was suggested that serum leptin levels might be closely related to the diagnostic criteria for MetS and the number of MetS components applicable.