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Abstract Title:

Effect of yerba mate and green tea on paraoxonase and leptin levels in patients affected by overweight or obesity and dyslipidemia: a randomized clinical trial.

Abstract Source:

Nutr J. 2019 01 19 ;18(1):5. Epub 2019 Jan 19. PMID: 30660196

Abstract Author(s):

Guilherme Balsan, Lúcia Campos Pellanda, Grasiele Sausen, Thaís Galarraga, Denise Zaffari, Bruna Pontin, Vera Lúcia Portal

Article Affiliation:

Guilherme Balsan

Abstract:

BACKGROUND: This study aimed to evaluate the effect of the intake of yerba mate (YM) and green tea (GT) on serum levels of leptin and paraoxonase-1 (PON-1), compared to control.

METHODS: Controlled, randomized clinical trial (RCT) that evaluated 142 men and women affected by overweight or obesity aged 35-60 years, untreated dyslipidemia and no history of coronary artery disease. Participants were randomized to ingest 1000 mL GT, YM or apple tea (AT, control group) daily, during eight weeks. Serum PON-1 and leptin levels were analyzed by ELISA immunoassay at the beginning (baseline) and after eightweeks of intervention.

RESULTS: The intake of 1 l of YM/day resulted in significant increase in serum levels of PON-1 (9.7%; p = 0.005). The consumption of GT induced no significant difference in the levels of PON-1 (p = 0.154) and leptin (p = 0.783). Intergroup analysis showed a significant difference (p = 0.036) in the variation of PON-1 levels in the YM group when compared to GT and AT groups. In addition, the increase in PON-1 levels in the YM group was significantly associated with increased HDL-c (p = 0.004).

CONCLUSIONS: The intake of yerba mate increased the antioxidant capacity by increasing serum levels of PON-1 and was positively associated with increased HDL-c, stressing the protective role of this beverage against atherosclerotic diseases. GT intake had no significant effect on serum levels of PON-1 and leptin.

TRIAL REGISTRATION: This study is registered with ClinicalTrials.gov under protocol number NCT00933647.

Study Type : Human Study

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Sayer Ji
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