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Circulation. 2002;105:804-809
Published online before print January 14, 2002, doi: 10.1161/hc0702.104279
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(Circulation. 2002;105:804.)
© 2002 American Heart Association, Inc.


Clinical Investigation and Reports

Reduction of Inflammatory Cytokine Concentrations and Improvement of Endothelial Functions in Obese Women After Weight Loss Over One Year

Patrizia Ziccardi, MD, PhD; Francesco Nappo, MD, PhD; Giovanni Giugliano; Katherine Esposito, MD; Raffaele Marfella, MD, PhD; Michele Cioffi, MD; Francesco D’Andrea, MD; Anna Maria Molinari, MD; Dario Giugliano, MD, PhD

From the Department of Geriatrics and Metabolic Diseases, Chair of Metabolic Diseases (P.Z., F.N., R.M., D.G.), Chair of Plastic Surgery (G.G., F.D.), and the Department of General Pathology, Chair of Clinical Pathology (K.E., M.C., A.M.M.), Second University of Naples, Italy.

Correspondence to Dario Giugliano, MD, Dept of Geriatrics and Metabolic Diseases, Policlinico della Seconda Università di Napoli, Piazza Miraglia, 80138 Napoli, Italy. E-mail dario.giugliano{at}unina2.it

Background Visceral fat is a key regulator site for the process of inflammation, and atherosclerotic lesions are essentially an inflammatory response.

Methods and Results Fifty-six healthy premenopausal obese women (age range 25 to 44 years, body mass index 37.2±2.2, waist to hip ratio range 0.78 to 0.92) and 40 age-matched normal weight women were studied. Compared with nonobese women, obese women had increased basal concentrations of tumor necrosis factor-{alpha} (TNF-{alpha}, P<0.01), interleukin-6 (IL-6, P<0.01), P-selectin (P<0.01), intercellular adhesion molecule-1 (ICAM-1, P<0.02), and vascular adhesion molecule-1 (VCAM-1, P<0.05). Vascular responses to L-arginine (3 g IV), the natural precursor of nitric oxide, were impaired in obese women: reductions in mean blood pressure (P<0.02), platelet aggregation to adenosine diphosphate (P<0.05), and blood viscosity (P<0.05) were significantly lower as compared with those in the nonobese group. Concentrations of TNF-{alpha} and IL-6 were related (P<0.01) to visceral obesity, as well as to adhesin levels and responses to L-arginine. After 1 year of a multidisciplinary program of weight reduction (diet, exercise, behavioral counseling), all obese women lost at least 10% of their original weight (9.8±1.5 kg, range 7.5 to 13 kg). Compared with baseline, sustained weight loss was associated with reduction of cytokine (P<0.01) and adhesin (P<0.02) concentrations and with improvement of vascular responses to L-arginine.

Conclusion In obese women, endothelial activation correlates with visceral body fat, possibly through inappropriate secretion of cytokines. Weight loss represents a safe method for downregulating the inflammatory state and ameliorating endothelial dysfunction in obese women.


Key Words: obesity • weight loss • cell adhesion molecules • interleukins • endothelium




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Diabetes CareHome page
A. S. Ryan and B. J. Nicklas
Reductions in Plasma Cytokine Levels With Weight Loss Improve Insulin Sensitivity in Overweight and Obese Postmenopausal Women
Diabetes Care, July 1, 2004; 27(7): 1699 - 1705.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
T. Skurk, V. van Harmelen, and H. Hauner
Angiotensin II Stimulates the Release of Interleukin-6 and Interleukin-8 From Cultured Human Adipocytes by Activation of NF-{kappa}B
Arterioscler. Thromb. Vasc. Biol., July 1, 2004; 24(7): 1199 - 1203.
[Abstract] [Full Text] [PDF]


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JAMAHome page
K. Esposito, F. Giugliano, C. Di Palo, G. Giugliano, R. Marfella, F. D'Andrea, M. D'Armiento, and D. Giugliano
Effect of Lifestyle Changes on Erectile Dysfunction in Obese Men: A Randomized Controlled Trial
JAMA, June 23, 2004; 291(24): 2978 - 2984.
[Abstract] [Full Text] [PDF]


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JAMAHome page
C. S. Saigal
Obesity and Erectile Dysfunction: Common Problems, Common Solution?
JAMA, June 23, 2004; 291(24): 3011 - 3012.
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NEJMHome page
S. Klein, L. Fontana, V. L. Young, A. R. Coggan, C. Kilo, B. W. Patterson, and B. S. Mohammed
Absence of an Effect of Liposuction on Insulin Action and Risk Factors for Coronary Heart Disease
N. Engl. J. Med., June 17, 2004; 350(25): 2549 - 2557.
[Abstract] [Full Text] [PDF]


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Am. J. Respir. Crit. Care Med.Home page
S. T. Weiss and S. Shore
Obesity and Asthma: Directions for Research
Am. J. Respir. Crit. Care Med., April 15, 2004; 169(8): 963 - 968.
[Full Text] [PDF]


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Am. J. Clin. Nutr.Home page
B. J Nicklas, W. Ambrosius, S. P Messier, G. D Miller, B. W. Penninx, R. F Loeser, S. Palla, E. Bleecker, and M. Pahor
Diet-induced weight loss, exercise, and chronic inflammation in older, obese adults: a randomized controlled clinical trial
Am. J. Clinical Nutrition, April 1, 2004; 79(4): 544 - 551.
[Abstract] [Full Text] [PDF]


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J. Clin. Endocrinol. Metab.Home page
C. J. Hukshorn, J. H. N. Lindeman, K. H. Toet, W. H. M. Saris, P. H. C. Eilers, M. S. Westerterp-Plantenga, and T. Kooistra
Leptin and the Proinflammatory State Associated with Human Obesity
J. Clin. Endocrinol. Metab., April 1, 2004; 89(4): 1773 - 1778.
[Abstract] [Full Text] [PDF]


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CirculationHome page
E. J. Benjamin, M. G. Larson, M. J. Keyes, G. F. Mitchell, R. S. Vasan, J. F. Keaney Jr, B. T. Lehman, S. Fan, E. Osypiuk, and J. A. Vita
Clinical Correlates and Heritability of Flow-Mediated Dilation in the Community: The Framingham Heart Study
Circulation, February 10, 2004; 109(5): 613 - 619.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
W. A. Hsueh and D. Bruemmer
Peroxisome Proliferator-Activated Receptor {gamma}: Implications for Cardiovascular Disease
Hypertension, February 1, 2004; 43(2): 297 - 305.
[Abstract] [Full Text] [PDF]


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CirculationHome page
M. Pynn, K. Schafer, S. Konstantinides, and M. Halle
Exercise Training Reduces Neointimal Growth and Stabilizes Vascular Lesions Developing After Injury in Apolipoprotein E-Deficient Mice
Circulation, January 27, 2004; 109(3): 386 - 392.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
M. Wolf, J. Sauk, A. Shah, K. Vossen Smirnakis, R. Jimenez-Kimble, J. L. Ecker, and R. Thadhani
Inflammation and Glucose Intolerance: A prospective study of gestational diabetes mellitus
Diabetes Care, January 1, 2004; 27(1): 21 - 27.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
R. Marfella, K. Esposito, M. Siniscalchi, F. Cacciapuoti, F. Giugliano, D. Labriola, M. Ciotola, C. Di Palo, L. Misso, and D. Giugliano
Effect of Weight Loss on Cardiac Synchronization and Proinflammatory Cytokines in Premenopausal Obese Women
Diabetes Care, January 1, 2004; 27(1): 47 - 52.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
M. Raitakari, T. Ilvonen, M. Ahotupa, T. Lehtimaki, A. Harmoinen, P. Suominen, J. Elo, J. Hartiala, and O. T. Raitakari
Weight Reduction With Very-Low-Caloric Diet and Endothelial Function in Overweight Adults: Role of Plasma Glucose
Arterioscler. Thromb. Vasc. Biol., January 1, 2004; 24(1): 124 - 128.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
J. S. Sidhu, D. Cowan, and J.-C. Kaski
The effects of rosiglitazone, a peroxisome proliferator-activated receptor-gamma agonist, on markers of endothelial cell activation, C-reactive protein, and fibrinogen levels in non-diabetic coronary artery disease patients
J. Am. Coll. Cardiol., November 19, 2003; 42(10): 1757 - 1763.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
M. E. Widlansky, N. Gokce, J. F. Keaney Jr, and J. A. Vita
The clinical implications of endothelial dysfunction
J. Am. Coll. Cardiol., October 1, 2003; 42(7): 1149 - 1160.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
V. Palmieri, R. P. Tracy, M. J. Roman, J. E. Liu, L. G. Best, J. N. Bella, D. C. Robbins, B. V. Howard, and R. B. Devereux
Relation of Left Ventricular Hypertrophy to Inflammation and Albuminuria in Adults With Type 2 Diabetes: The Strong Heart Study
Diabetes Care, October 1, 2003; 26(10): 2764 - 2769.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
K. Esposito, C. Di Palo, R. Marfella, and D. Giugliano
The Effect of Weight Loss on Endothelial Functions in Obesity: Response to Sciacqua et al.
Diabetes Care, October 1, 2003; 26(10): 2968 - 2969.
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Ann. Thorac. Surg.Home page
M. Swaminathan, B. G. Phillips-Bute, P. J. Conlon, P. K. Smith, M. F. Newman, and M. Stafford-Smith
The association of lowest hematocrit during cardiopulmonary bypass with acute renal injury after coronary artery bypass surgery
Ann. Thorac. Surg., September 1, 2003; 76(3): 784 - 791.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
M. Tomaszewski, F. J. Charchar, M. Przybycin, L. Crawford, A. M. Wallace, K. Gosek, G. D. Lowe, E. Zukowska-Szczechowska, W. Grzeszczak, N. Sattar, et al.
Strikingly Low Circulating CRP Concentrations in Ultramarathon Runners Independent of Markers of Adiposity: How Low Can You Go?
Arterioscler. Thromb. Vasc. Biol., September 1, 2003; 23(9): 1640 - 1644.
[Abstract] [Full Text] [PDF]


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Clin. Chem.Home page
T. B. Ledue and N. Rifai
Preanalytic and Analytic Sources of Variations in C-reactive Protein Measurement: Implications for Cardiovascular Disease Risk Assessment
Clin. Chem., August 1, 2003; 49(8): 1258 - 1271.
[Abstract] [Full Text] [PDF]


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J. Appl. Physiol.Home page
G. F. Elphick, J. Wieseler-Frank, B. N. Greenwood, J. Campisi, and M. Fleshner
B-1 cell (CD5+/CD11b+) numbers and nIgM levels are elevated in physically active vs. sedentary rats
J Appl Physiol, July 1, 2003; 95(1): 199 - 206.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
O. Hamdy, S. Ledbury, C. Mullooly, C. Jarema, S. Porter, K. Ovalle, A. Moussa, A. Caselli, A. E. Caballero, P. A. Economides, et al.
Lifestyle Modification Improves Endothelial Function in Obese Subjects With the Insulin Resistance Syndrome
Diabetes Care, July 1, 2003; 26(7): 2119 - 2125.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
N. Sattar, J. Ramsay, L. Crawford, H. Cheyne, and I. A. Greer
Classic and Novel Risk Factor Parameters in Women With a History of Preeclampsia
Hypertension, July 1, 2003; 42(1): 39 - 42.
[Abstract] [Full Text] [PDF]


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J. Clin. Endocrinol. Metab.Home page
R. C. Christian, D. A. Dumesic, T. Behrenbeck, A. L. Oberg, P. F. Sheedy II, and L. A. Fitzpatrick
Prevalence and Predictors of Coronary Artery Calcification in Women with Polycystic Ovary Syndrome
J. Clin. Endocrinol. Metab., June 1, 2003; 88(6): 2562 - 2568.
[Abstract] [Full Text] [PDF]


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EndocrinologyHome page
C. J. Lyon, R. E. Law, and W. A. Hsueh
Minireview: Adiposity, Inflammation, and Atherogenesis
Endocrinology, June 1, 2003; 144(6): 2195 - 2200.
[Abstract] [Full Text] [PDF]


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Diabetes CareHome page
K. J. Mather, H. O. Steinberg, and A. D. Baron
Weight Loss and Endothelial Function in Obesity
Diabetes Care, June 1, 2003; 26(6): 1927 - 1928.
[Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
H.P. Kopp, C.W. Kopp, A. Festa, K. Krzyzanowska, S. Kriwanek, E. Minar, R. Roka, and G. Schernthaner
Impact of Weight Loss on Inflammatory Proteins and Their Association With the Insulin Resistance Syndrome in Morbidly Obese Patients
Arterioscler. Thromb. Vasc. Biol., June 1, 2003; 23(6): 1042 - 1047.
[Abstract] [Full Text] [PDF]


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JAMAHome page
K. Esposito, A. Pontillo, C. Di Palo, G. Giugliano, M. Masella, R. Marfella, and D. Giugliano
Effect of Weight Loss and Lifestyle Changes on Vascular Inflammatory Markers in Obese Women: A Randomized Trial
JAMA, April 9, 2003; 289(14): 1799 - 1804.
[Abstract] [Full Text] [PDF]


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J. Nutr.Home page
H. Bruunsgaard, H. E. Poulsen, B. K. Pedersen, K. Nyyssonen, J. Kaikkonen, and J. T. Salonen
Long-Term Combined Supplementations with {alpha}-Tocopherol and Vitamin C Have No Detectable Anti-Inflammatory Effects in Healthy Men
J. Nutr., April 1, 2003; 133(4): 1170 - 1173.
[Abstract] [Full Text] [PDF]


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J. Clin. Endocrinol. Metab.Home page
K. Esposito, A. Pontillo, F. Giugliano, G. Giugliano, R. Marfella, G. Nicoletti, and D. Giugliano
Association of Low Interleukin-10 Levels with the Metabolic Syndrome in Obese Women
J. Clin. Endocrinol. Metab., March 1, 2003; 88(3): 1055 - 1058.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
J. V. Higdon and B. Frei
Obesity and Oxidative Stress: A Direct Link to CVD?
Arterioscler. Thromb. Vasc. Biol., March 1, 2003; 23(3): 365 - 367.
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CirculationHome page
T. A. Pearson, G. A. Mensah, R. W. Alexander, J. L. Anderson, R. O. Cannon III, M. Criqui, Y. Y. Fadl, S. P. Fortmann, Y. Hong, G. L. Myers, et al.
Markers of Inflammation and Cardiovascular Disease: Application to Clinical and Public Health Practice: A Statement for Healthcare Professionals From the Centers for Disease Control and Prevention and the American Heart Association
Circulation, January 28, 2003; 107(3): 499 - 511.
[Full Text] [PDF]


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J. Clin. Endocrinol. Metab.Home page
K. Esposito, A. Pontillo, M. Ciotola, C. Di Palo, E. Grella, G. Nicoletti, and D. Giugliano
Weight Loss Reduces Interleukin-18 Levels in Obese Women
J. Clin. Endocrinol. Metab., August 1, 2002; 87(8): 3864 - 3866.
[Abstract] [Full Text] [PDF]