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Intern Emerg Med. 2012 Jun;7(3):237-42. doi: 10.1007/s11739-011-0522-x. Epub 2011 Jan 20.

Inflammatory and prothrombotic parameters in normotensive non-diabetic obese women: effect of weight loss obtained by gastric banding.

Author information

1
Department of Internal Medicine, University of Milan, Milan, Italy. massimo.cugno@unimi.it

Abstract

Hypertension and diabetes are known risk factors for obesity-related thrombosis, but several studies have shown that obesity is characterised by a potentially prothrombotic inflammatory state because of activated coagulation and impaired fibrinolysis. In order to verify if obese patients-unaffected by hypertension, diabetes, dyslipidemia, cigarette smoking or inflammatory diseases-show increased prothrombotic markers and whether the weight loss induced by gastric banding normalises such parameters. Plasma levels of C reactive protein (CRP), fibrinogen, plasminogen activator inhibitor-1 (PAI-1), von Willebrand factor (VWF) and factor VII (FVII) were measured in 25 women with isolated obesity prior to, as well as 3, 6 and 12 months subsequent to gastric banding. Twenty-five healthy women served as a baseline control group. The obese women had higher CRP (p = 0.0001), fibrinogen (p = 0.014), PAI-1 (p = 0.003), VWF (p = 0.004) and FVII levels (p = 0.0001) than the normal controls, and their body mass index (BMI) positively correlated with CRP (r = 0.462, p = 0.02), fibrinogen (r = 0.426, p = 0.04) and PAI-1 (r = 0.468, p = 0.02). Twelve months after gastric banding, the median BMI had decreased from 40.0 to 34.9 (p = 0.0001); CRP from 4.18 to 1.69 μg/ml (p = 0.01); fibrinogen from 389 to 318 mg/dl (p = 0.0001); PAI-1 from 32.1 to 12.0 UI/ml (p = 0.003); VWF from 144 to 120% (p = 0.0001); and FVII from 134 to 112% (p = 0.002). Even in the absence of major cardiovascular risk factors, obese patients are characterised by a prothrombotic state. The weight loss induced by gastric banding decreases the parameters of inflammation, coagulation and impaired fibrinolysis, thus potentially reducing the thrombotic risk.

PMID:
21249470
DOI:
10.1007/s11739-011-0522-x
[Indexed for MEDLINE]

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