Conclusion Plant and marine sources of n-3 PUFAs can modify serum leptin and adiponectin levels by increasing adiponectin and decreasing leptin levels in patients with type 2 diabetes .
Due to some limitations in this study , further studies are needed to reach a definitive conclusion about the effect of n-3 PUFAs on the levels of leptin and adiponectin in T2DM
Abstract Aim N-3 PUFAs can potentially influence levels of inflammatory and non-inflammatory adipokines .
Given the contradictory effects of n-3 PUFAs on serum levels of adipokines in type 2 diabetes , we conducted a systematic review and meta- analysis study of r and omized placebo-controlled clinical trials that examined the effects of n-3 PUFAs on serum levels of leptin and adiponectin in patients with type 2 diabetes .
Dietary (n-3) polyunsaturated fatty acids up-regulate plasma leptin in insulin-resistant rats.
The study was design ed to evaluate the chronic regulation of plasma leptin by dietary ( n-3 ) polyunsaturated fatty acids ( PUFA ) in insulin-resistant , sucrose-fed rats . Male Sprague-Dawley rats were r and omly assigned to consume for 3 or 6 wk a diet containing 57.5 % ( g/100 g ) sucrose and 14 % lipids as either fish oil ( SF ) or control oils ( SC ) . After 3 and 6 wk of consuming the SF diet , plasma leptin was 70 % ( P < 0.001 ) and 75 % ( P < 0.05 ) greater , respectively , than in rats fed the SC diet . The same result was found when plasma leptin was adjusted by total fat mass , as measured by dual-energy X-ray absorptiometry . Despite high leptin levels , food intake of rats fed the SF diet was greater than in SC-fed rats without any difference in body weight or total fat mass . After 3 wk , accumulated leptin in epididymal and retroperitoneal adipose tissue was higher in the SF-fed rats than in the SC-fed rats . However , after 6 wk , tissue leptin in the SF-fed rats did not differ from that of the SC-fed rats . The SF diet increased adipose tissue glucose transporter-4 protein quantity and prevented the sucrose-induced elevations in plasma triglycerides and free fatty acids . When all SC- and SF-fed rats ( both diets and feeding duration s ) were considered , plasma leptin levels were positively correlated with body weight ( r = 0.5 , P < 0.0001 ) and with total fat mass ( r = 0.5 , P < 0.0005 ) . These results suggest that plasma leptin at a given time could be inappropriately high for a given fat mass in insulin-sensitive rats fed ( n-3 ) PUFA
Conclusion Plant and marine sources of n-3 PUFAs can modify serum leptin and adiponectin levels by increasing adiponectin and decreasing leptin levels in patients with type 2 diabetes .
Due to some limitations in this study , further studies are needed to reach a definitive conclusion about the effect of n-3 PUFAs on the levels of leptin and adiponectin in T2DM
Abstract Aim N-3 PUFAs can potentially influence levels of inflammatory and non-inflammatory adipokines .
Given the contradictory effects of n-3 PUFAs on serum levels of adipokines in type 2 diabetes , we conducted a systematic review and meta- analysis study of r and omized placebo-controlled clinical trials that examined the effects of n-3 PUFAs on serum levels of leptin and adiponectin in patients with type 2 diabetes .