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  • Title: The effect of bariatric surgery on adipocytokines, renal parameters and other cardiovascular risk factors in severe and very severe obesity: 1-year follow-up.
    Author: Serra A, Granada ML, Romero R, Bayés B, Cantón A, Bonet J, Rull M, Alastrue A, Formiguera X.
    Journal: Clin Nutr; 2006 Jun; 25(3):400-8. PubMed ID: 16709438.
    Abstract:
    AIMS: To evaluate the effect of weight loss after bariatric surgery (BS) on peripheral adipocytokines, renal parameters and other cardiovascular risk factors (CVRFs). METHODS: A total of 70 (41 women) extremely obese adults were prospectively studied before and 12 months after surgery. CONTROLS: 24 (15 women) normal-weight adults. Anthropometric, biochemical and renal parameters were recorded. RESULTS: Presurgery, adiponectin (ADPN) was lower, whereas leptin, insulin resistance, C-reactive protein, creatinine clearance and albuminuria were higher in patients than controls (P<0.001). All parameters improved postsurgery. Changes in ADPN correlated negatively with leptin, insulin resistance, albumin, C-reactive protein, and creatinine clearance. Multiple regression analysis: using changes in ADPN as the dependent variable, only changes in insulin resistance (P=0.005) and albumin (P=0.019) were significant independent determinants for changes in ADPN. No statistical differences were found in relation to the degree of obesity. CONCLUSION: Patients changed to obesity type I after surgery. This implies a substantial improvement of CVRFs including ADPN, creatinine clearance and albuminuria. Changes in plasma ADPN correlated negatively with insulin resistance and with albuminemia but not with renal parameters. The lack of differences between different degrees of obesity suggests that the relationship between weight and CVRFs no longer exists when obesity becomes very extreme.
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