Cited by 60Macrophage Migration Inhibitory FactorAdipokines, Inflammation, and Metabolic DiseasesObesity, Physical Activity, Diet

Obesity, macrophage migration inhibitory factor, and weight loss

Church, T S, Willis, M S, Priest, E L, LaMonte, M J, Earnest, C P, Wilkinson, W J, Wilson, D A, Giroir, B P·2005·International Journal of Obesity

Abstract

Objective Elevated macrophage migration inhibitory factor (MIF) has been implicated as a causal mechanism in a number of disease conditions including cardiovascular disease (CVD), diabetes, and cancer. Excess body fat is associated with an increased risk of numerous health conditions including CVD, diabetes, and cancer. To our knowledge, the association between MIF and obesity status and the effect of weight loss on serum MIF concentrations have not been reported. In this study, we examined the effects of participation in a behavior-based weight loss program on MIF concentrations in obese individuals.Subjects Study participants were 71 men and women enrolled in The Cooper Institute Weight Management Program. Participants were predominantly female (68%, n=48), middle-aged (46.5+/-9.8 y), and severely obese (BMI=43.0+/-8.6).Method Plasma MIF concentrations and other standard risk factors were measured before and after participation in a diet and physical activity based weight management program.Results The mean follow-up was 8.5+/-3.0 months with an average weight loss of 14.4 kg (P<0.001). The majority of clinical risk factors significantly improved at follow-up. Median levels of plasma MIF concentration were significantly lower at follow-up (median [IQR]; 5.1[3.6-10.3]) compared to baseline (8.4 [4.3-48.8]; P=0.0005). The percentage of participants with plasma MIF concentration > or =19.5 mg/nl (highest tertile at baseline) decreased from 33.8 to 5.6% (P<0.001). Further, elevated baseline plasma MIF concentration was associated with markers of beta-cell dysfunction and reductions in MIF were associated with improvements in beta-cell function.Conclusions Circulating MIF concentrations are elevated in obese but otherwise healthy individuals; however, this elevation in MIF is not uniform across individuals. In obese individuals with elevated circulating MIF concentrations, participation in physical activity and a dietary-focused weight management program resulted in substantial reduction in MIF.

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Crossref · 10.1038/sj.ijo.0802942

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Authors
Church, T. S., Willis, M. S., Priest, E. L., LaMonte, M. J., Earnest, C. P., Wilkinson, W. J., Wilson, D. A., & Giroir, B. P.
Affiliations
  • Cooper Institute (US)
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
Church, T S
Venue
International Journal of Obesity
Published
2005-03-29
Volume
29
Issue
6
Pages
675-681
ISSN
  • 0307-0565 (ISSN-L)
  • 1476-5497
OpenAlex
W2095080422
Cited by
60
References
19
Citations by year
2025: 1 · 2024: 2 · 2023: 3 · 2019: 1 · 2018: 5 · 2017: 4 · 2016: 1 · 2015: 5 · 2014: 3 · 2013: 6 · 2012: 5
FWCI
1.17
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Obesity (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Macrophage Migration Inhibitory Factor
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Keywords
macrophage migration inhibitory factor, obesity, weight loss, weight management interventions, diet and physical activity, beta-cell function, cardiovascular risk factors, diabetes risk
MeSH terms
Adult, Blood Glucose, Diet, Reducing, Exercise Therapy, Female, Follow-Up Studies, Humans, Insulin, Macrophage Migration-Inhibitory Factors, Male, Middle Aged, Obesity, Risk Factors, Weight Loss, Estrogen Replacement Therapy, Chi-Square Distribution, Linear Models

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