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Sökning: WFRF:(Matheson M.) > Lunds universitet

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1.
  • Sneddon, Alan A, et al. (författare)
  • Effect of a conjugated linoleic acid and omega-3 fatty acid mixture on body composition and adiponectin
  • 2008
  • Ingår i: Obesity. - : Wiley. - 1930-739X .- 1930-7381. ; 16:5, s. 1019-1024
  • Tidskriftsartikel (refereegranskat)abstract
    • This study aimed to determine the effect of supplementation with conjugated linoleic acids (CLAs) plus n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) on body composition, adiposity, and hormone levels in young and older, lean and obese men. Young (31.4 +/- 3.9 years) lean (BMI, 23.6 +/- 1.5 kg/m(2); n = 13) and obese (BMI, 32.4 +/- 1.9 kg/m(2); n = 12) and older (56.5 +/- 4.6 years) lean (BMI, 23.6 +/- 1.5 kg/m(2); n = 20) and obese (BMI, 32.0 +/- 1.6 kg/m(2); n = 14) men participated in a double-blind placebo-controlled, randomized crossover study. Subjects received either 6 g/day control fat or 3 g/day CLA (50:50 cis-9, trans-11: trans-10, cis-12) and 3 g/day n-3 LC-PUFA for 12 weeks with a 12-week wash-out period between crossovers. Body composition was assessed by dual-energy X-ray absorptiometry. Fasting adiponectin, leptin, glucose, and insulin concentrations were measured and insulin resistance estimated by homeostasis model assessment for insulin resistance (HOMA-IR). In the younger obese subjects, CLA plus n-3 LC-PUFA supplementation compared with control fat did not result in increased abdominal fat and raised both fat-free mass (2.4%) and adiponectin levels (12%). CLA plus n-3 LC-PUFA showed no significant effects on HOMA-IR in any group but did increase fasting glucose in older obese subjects. In summary, supplementation with CLA plus n-3 LC-PUFA prevents increased abdominal fat mass and raises fat-free mass and adiponectin levels in younger obese individuals without deleteriously affecting insulin sensitivity, whereas these parameters in young and older lean and older obese individuals were unaffected, apart from increased fasting glucose in older obese men.
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2.
  • Tsofliou, Fotini, et al. (författare)
  • Modulation of Fasted and Postprandial Plasma Lipids in Healthy Volunteers by a Dietary Mixture of Omega-3 Fatty Acids and Conjugated Linoleic Acid
  • 2009
  • Ingår i: Journal of Food Lipids. - : Wiley. - 1065-7258 .- 1745-4522. ; 16:4, s. 499-513
  • Tidskriftsartikel (refereegranskat)abstract
    • Effects of a dietary combination of omega-3 polyunsaturated fatty acids (n-3-PUFA) and conjugated linoleic acids (CLAs) on fasting and postprandial plasma lipids was investigated in healthy volunteers with different ages and body mass index (BMI). Lean (BMI 20-26 kg/m2) and obese (BMI 29-35 kg/m2), young (20-37 years) and older (50-65 years) men consumed 3 g/day each of CLA and n-3-PUFA or 6 g/day control oil for 12 weeks in a double-blinded, placebo-controlled, randomized crossover study. In older lean subjects, CLA/n-3-PUFA supplementation reduced fasting nonesterified fatty acids (NEFAs) concentrations compared with the control oil (P < 0.05). However, in older obese subjects, CLA/n-3-PUFA increased fasting low-density lipoprotein cholesterol (P < 0.05) and postprandial total cholesterol levels (P < 0.05). In young lean subjects, CLA/n-3-PUFA reduced postprandial NEFA levels (P < 0.05) whereas in young obese subjects, postprandial total cholesterol and triacylglycerols were lowered (both P < 0.05). Therefore, a dietary combination of CLA together with n-3-PUFA may have favorable effects on plasma lipids in young and older lean men but detrimental effects in older obese men. PRACTICAL APPLICATIONS This study suggests that where individuals consume a combination of both omega-3 polyunsaturated fatty acids and conjugated linoleic acid supplements in order to obtain potential additive beneficial effects of each lipid on adiposity and health, this particular fatty acid combination may have harmful effects on plasma lipid biomarkers of cardiovascular disease in older obese men.
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4.
  • Sims, Emily K., et al. (författare)
  • Who is enrolling? The path to monitoring in type 1 diabetes trialnet’s pathway to prevention
  • 2019
  • Ingår i: Diabetes Care. - : American Diabetes Association. - 0149-5992 .- 1935-5548. ; 42:12, s. 2228-2236
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE To better understand potential facilitators of individual engagement in type 1 diabetes natural history and prevention studies through analysis of enrollment data in the TrialNet Pathway to Prevention (PTP) study. RESEARCH DESIGN AND METHODS We used multivariable logistic regression models to examine continued engagement of eligible participants at two time points: 1) the return visit after screening to confirm an initial autoantibody-positive (Ab1) test result and 2) the initial oral glucose tolerance test (OGTT) for enrollment into the monitoring protocol. RESULTS Of 5,387 subjects who screened positive for a single autoantibody (Ab), 4,204 (78%) returned for confirmatory Ab testing. Younger age was associated with increased odds of returning for Ab confirmation (age <12 years vs. >18 years: odds ratio [OR] 2.12, P < 0.0001). Racial and ethnic minorities were less likely to return for confirmation, particularly nonwhite non-Hispanic (OR 0.50, P < 0.0001) and Hispanic (OR 0.69, P 5 0.0001) relative to non-Hispanic white subjects. Of 8,234 subjects, 5,442 (66%) were identified as eligible to be enrolled in PTP OGTT monitoring. Here, younger age and identification as multiple Ab1 were associated with increased odds of returning for OGTT monitoring (age <12 years vs. >18 years: OR 1.43, P < 0.0001; multiple Ab1: OR 1.36, P < 0.0001). Parents were less likely to enroll into monitoring than other relatives (OR 0.78, P 5 0.004). Site-specific factors, including site volume and U.S. site versus international site, were also associated with differences in rates of return for Ab1 confirmation and enrollment into monitoring. CONCLUSIONS These data confirm clear differences between successfully enrolled populations and those lost to follow-up, which can serve to identify strategies to increase ongoing participation.
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