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International Journal of Endocrinology
Volume 2013 (2013), Article ID 740419, 7 pages
http://dx.doi.org/10.1155/2013/740419
Clinical Study

Different Impacts of Metabolic Syndrome Components on Insulin Resistance in Type 2 Diabetes

1Institute of Traditional Medicine, National Yang-Ming University, Taipei 112, Taiwan
2Linsen (Chinese Medicine) Branch, Taipei City Hospital, Taipei, Taiwan

Received 10 September 2012; Accepted 14 January 2013

Academic Editor: Atheline Major-Pedersen

Copyright © 2013 Chung-Hua Hsu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To examine the different impacts of MS components on insulin resistance in type 2 diabetes. Methods. A number of subjects (144) who met the criteria of (1) age between 30 and 75 years, (2) had type 2 diabetes for more than one year, and (3) taking gliclazide and metformin for more than 6 months were enrolled. All subjects were assigned to one of the four HOMA index categories. The HOMA index quartile 4 denotes the highest insulin resistance. The main outcome evaluated is the odds ratios (ORs) of different MS components on HOMA index quartile 4. The characteristics in HOMA index quartiles and groups of nonmetabolic syndrome (NMS; number of components < 2), metabolic syndrome A (MSA; number of components = 2), and metabolic syndrome B (MSB; number of components > 2) were also evaluated. Results. The results showed that both MSA and MSB groups had higher ORs (5.9 and 13.8 times, resp.) than the NMS group; and that subjects with large waist circumference (LWC) and high triglyceride (HTG) level have higher ORs (6.1 and 2.6 times, resp.) in developing higher insulin resistance than normal control subjects. Conclusion. Type 2 diabetic patients with greater number of MS components have higher ORs in developing increased insulin resistance.