Insulin resistance, adipokines, and oxidative stress in nondiabetic, hypercholesterolemic patients: leptin as an 8-epi-prostaglandin F2α determinant

Min Jeong Shin; Jong Ho Lee; Yangsoo Jang; Eunju Park; Jaewon Oh; Ji Hyung Chung; Namsik Chung

doi:10.1016/j.metabol.2006.02.020

Insulin resistance, adipokines, and oxidative stress in nondiabetic, hypercholesterolemic patients: leptin as an 8-epi-prostaglandin F_2α determinant

Min Jeong Shin, Jong Ho Lee, Yangsoo Jang, Eunju Park, Jaewon Oh, Ji Hyung Chung, Namsik Chung

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Limited data are available on the association of insulin resistance, adipokines, and in vivo lipid peroxidation. We investigated the relationships between insulin resistance, adipokines (leptin, adiponectin, and resistin), and oxidative stress in nondiabetic, hypercholesterolemic patients. Seventy-six nondiabetic patients with hypercholesterolemia participated in this cross-sectional study. Fasting glucose and insulin concentrations were analyzed. Serum leptin, adiponectin, and resistin concentrations and urinary excretion of 8-epi-prostaglandin F_2α (8-epi-PGF_2α) were determined using enzyme-linked immunosorbent assay. We divided all subjects into 3 groups, classified by the tertiles of homeostasis model assessment of insulin resistance (HOMA-IR) values, and clinical parameter comparisons were made among the 3 groups. The results showed that serum leptin (P < .001) and adiponectin levels (P < .05) were significantly different among the groups, although serum resistin was not different. Furthermore, the group with the highest HOMA-IR had a significantly higher urinary 8-epi-PGF_2α excretion than the group with the lowest HOMA-IR (P = .017). Circulating leptin was positively correlated with urinary 8-epi-PGF_2α (r = 0.323, P < .01) and HOMA-IR (r = 0.524, P < .001). Circulating adiponectin was negatively correlated with body mass index (r = -0.252, P < .05) and HOMA-IR (r = -0.228, P < .05). We could not find a relationship between circulating adiponectin or resistin and urinary 8-epi-PGF_2α excretion. Stepwise multiple linear regression analysis showed that leptin was associated with the urinary 8-epi-PGF_2α excretion after adjusting for age, sex, body mass index, blood lipids, and HOMA-IR (P = .002). In conclusion, our results show that more insulin-resistant state of nondiabetic, hypercholesterolemic patients is associated with decreased adiponectin and increased leptin and urinary 8-epi-PGF_2α levels, although no relationship with resistin was observed. Furthermore, serum leptin independently contributed to urinary 8-epi-PGF_2α excretion.

Original language	English
Pages (from-to)	918-922
Number of pages	5
Journal	Metabolism: Clinical and Experimental
Volume	55
Issue number	7
DOIs	https://doi.org/10.1016/j.metabol.2006.02.020
Publication status	Published - 2006 Jul
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the National Research Laboratory project, Ministry of Science and Technology (2005-01572), and a grant from the Kyungnam University Foundation.

ASJC Scopus subject areas

Endocrinology, Diabetes and Metabolism
Endocrinology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.metabol.2006.02.020

Cite this

@article{419dd490396b4141965ad0a9722da2f4,

title = "Insulin resistance, adipokines, and oxidative stress in nondiabetic, hypercholesterolemic patients: leptin as an 8-epi-prostaglandin F2α determinant",

abstract = "Limited data are available on the association of insulin resistance, adipokines, and in vivo lipid peroxidation. We investigated the relationships between insulin resistance, adipokines (leptin, adiponectin, and resistin), and oxidative stress in nondiabetic, hypercholesterolemic patients. Seventy-six nondiabetic patients with hypercholesterolemia participated in this cross-sectional study. Fasting glucose and insulin concentrations were analyzed. Serum leptin, adiponectin, and resistin concentrations and urinary excretion of 8-epi-prostaglandin F2α (8-epi-PGF2α) were determined using enzyme-linked immunosorbent assay. We divided all subjects into 3 groups, classified by the tertiles of homeostasis model assessment of insulin resistance (HOMA-IR) values, and clinical parameter comparisons were made among the 3 groups. The results showed that serum leptin (P < .001) and adiponectin levels (P < .05) were significantly different among the groups, although serum resistin was not different. Furthermore, the group with the highest HOMA-IR had a significantly higher urinary 8-epi-PGF2α excretion than the group with the lowest HOMA-IR (P = .017). Circulating leptin was positively correlated with urinary 8-epi-PGF2α (r = 0.323, P < .01) and HOMA-IR (r = 0.524, P < .001). Circulating adiponectin was negatively correlated with body mass index (r = -0.252, P < .05) and HOMA-IR (r = -0.228, P < .05). We could not find a relationship between circulating adiponectin or resistin and urinary 8-epi-PGF2α excretion. Stepwise multiple linear regression analysis showed that leptin was associated with the urinary 8-epi-PGF2α excretion after adjusting for age, sex, body mass index, blood lipids, and HOMA-IR (P = .002). In conclusion, our results show that more insulin-resistant state of nondiabetic, hypercholesterolemic patients is associated with decreased adiponectin and increased leptin and urinary 8-epi-PGF2α levels, although no relationship with resistin was observed. Furthermore, serum leptin independently contributed to urinary 8-epi-PGF2α excretion.",

author = "Shin, {Min Jeong} and Lee, {Jong Ho} and Yangsoo Jang and Eunju Park and Jaewon Oh and Chung, {Ji Hyung} and Namsik Chung",

note = "Funding Information: This work was supported by the National Research Laboratory project, Ministry of Science and Technology (2005-01572), and a grant from the Kyungnam University Foundation.",

year = "2006",

month = jul,

doi = "10.1016/j.metabol.2006.02.020",

language = "English",

volume = "55",

pages = "918--922",

journal = "Metabolism: Clinical and Experimental",

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publisher = "W.B. Saunders Ltd",

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T1 - Insulin resistance, adipokines, and oxidative stress in nondiabetic, hypercholesterolemic patients

T2 - leptin as an 8-epi-prostaglandin F2α determinant

AU - Shin, Min Jeong

AU - Lee, Jong Ho

AU - Jang, Yangsoo

AU - Park, Eunju

AU - Oh, Jaewon

AU - Chung, Ji Hyung

AU - Chung, Namsik

N1 - Funding Information: This work was supported by the National Research Laboratory project, Ministry of Science and Technology (2005-01572), and a grant from the Kyungnam University Foundation.

PY - 2006/7

Y1 - 2006/7

N2 - Limited data are available on the association of insulin resistance, adipokines, and in vivo lipid peroxidation. We investigated the relationships between insulin resistance, adipokines (leptin, adiponectin, and resistin), and oxidative stress in nondiabetic, hypercholesterolemic patients. Seventy-six nondiabetic patients with hypercholesterolemia participated in this cross-sectional study. Fasting glucose and insulin concentrations were analyzed. Serum leptin, adiponectin, and resistin concentrations and urinary excretion of 8-epi-prostaglandin F2α (8-epi-PGF2α) were determined using enzyme-linked immunosorbent assay. We divided all subjects into 3 groups, classified by the tertiles of homeostasis model assessment of insulin resistance (HOMA-IR) values, and clinical parameter comparisons were made among the 3 groups. The results showed that serum leptin (P < .001) and adiponectin levels (P < .05) were significantly different among the groups, although serum resistin was not different. Furthermore, the group with the highest HOMA-IR had a significantly higher urinary 8-epi-PGF2α excretion than the group with the lowest HOMA-IR (P = .017). Circulating leptin was positively correlated with urinary 8-epi-PGF2α (r = 0.323, P < .01) and HOMA-IR (r = 0.524, P < .001). Circulating adiponectin was negatively correlated with body mass index (r = -0.252, P < .05) and HOMA-IR (r = -0.228, P < .05). We could not find a relationship between circulating adiponectin or resistin and urinary 8-epi-PGF2α excretion. Stepwise multiple linear regression analysis showed that leptin was associated with the urinary 8-epi-PGF2α excretion after adjusting for age, sex, body mass index, blood lipids, and HOMA-IR (P = .002). In conclusion, our results show that more insulin-resistant state of nondiabetic, hypercholesterolemic patients is associated with decreased adiponectin and increased leptin and urinary 8-epi-PGF2α levels, although no relationship with resistin was observed. Furthermore, serum leptin independently contributed to urinary 8-epi-PGF2α excretion.

AB - Limited data are available on the association of insulin resistance, adipokines, and in vivo lipid peroxidation. We investigated the relationships between insulin resistance, adipokines (leptin, adiponectin, and resistin), and oxidative stress in nondiabetic, hypercholesterolemic patients. Seventy-six nondiabetic patients with hypercholesterolemia participated in this cross-sectional study. Fasting glucose and insulin concentrations were analyzed. Serum leptin, adiponectin, and resistin concentrations and urinary excretion of 8-epi-prostaglandin F2α (8-epi-PGF2α) were determined using enzyme-linked immunosorbent assay. We divided all subjects into 3 groups, classified by the tertiles of homeostasis model assessment of insulin resistance (HOMA-IR) values, and clinical parameter comparisons were made among the 3 groups. The results showed that serum leptin (P < .001) and adiponectin levels (P < .05) were significantly different among the groups, although serum resistin was not different. Furthermore, the group with the highest HOMA-IR had a significantly higher urinary 8-epi-PGF2α excretion than the group with the lowest HOMA-IR (P = .017). Circulating leptin was positively correlated with urinary 8-epi-PGF2α (r = 0.323, P < .01) and HOMA-IR (r = 0.524, P < .001). Circulating adiponectin was negatively correlated with body mass index (r = -0.252, P < .05) and HOMA-IR (r = -0.228, P < .05). We could not find a relationship between circulating adiponectin or resistin and urinary 8-epi-PGF2α excretion. Stepwise multiple linear regression analysis showed that leptin was associated with the urinary 8-epi-PGF2α excretion after adjusting for age, sex, body mass index, blood lipids, and HOMA-IR (P = .002). In conclusion, our results show that more insulin-resistant state of nondiabetic, hypercholesterolemic patients is associated with decreased adiponectin and increased leptin and urinary 8-epi-PGF2α levels, although no relationship with resistin was observed. Furthermore, serum leptin independently contributed to urinary 8-epi-PGF2α excretion.

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