scholarly journals Small Amounts of Dietary Medium-Chain Fatty Acids Protect Against Insulin Resistance During Caloric Excess in Humans

Diabetes ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 91-98
Author(s):  
Anne-Marie Lundsgaard ◽  
Andreas M. Fritzen ◽  
Kim A. Sjøberg ◽  
Maximilian Kleinert ◽  
Erik A. Richter ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Caloric Excess ◽  
Chain Fatty Acids

scholarly journals Long- and Medium-Chain Fatty Acids Induce Insulin Resistance to a Similar Extent in Humans Despite Marked Differences in Muscle Fat Accumulation

2012 ◽  
Vol 97 (1) ◽  
pp. 208-216 ◽  
Author(s):  
Joris Hoeks ◽  
Marco Mensink ◽  
Matthijs K. C. Hesselink ◽  
Kim Ekroos ◽  
Patrick Schrauwen
Keyword(s):  
Insulin Resistance ◽  
Skeletal Muscle ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Fat Accumulation ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Induce Insulin Resistance ◽  
Chain Fatty Acids

Context: Animal studies revealed that medium-chain fatty acids (MCFA), due to their metabolic characteristics, are not stored in skeletal muscle and may therefore not give rise to potentially hazardous lipid species impeding insulin signaling. Objective: We here hypothesized that infusion of medium-chain triacylglycerols (MCT) in healthy lean subjects does not lead to ectopic fat accumulation and hence does not result in lipid-induced insulin resistance. Design and Methods: Nine healthy lean male subjects underwent a 6-h hyperinsulinemic-euglycemic clamp with simultaneous infusion of 1) a 100% long-chain triacylglycerols (LCT) emulsion, 2) a 50/50% MCT/LCT emulsion, or 3) glycerol in a randomized crossover design. Muscle biopsies were taken before and after each clamp. Results: MCT/LCT infusion raised plasma free fatty acid levels to a similar level compared with LCT infusion alone. Despite elevated free fatty acid levels, intramyocellular triacylglycerol (IMTG) levels were not affected by the MCT/LCT emulsion, whereas LCT infusion resulted in an approximately 1.6-fold increase in IMTG. These differences in muscle fat accumulation did not result in significant differences in lipid-induced insulin resistance between LCT (−28%, P = 0.003) and MCT/LCT (−20%, P < 0.001). Total skeletal muscle ceramide content as well as lactosyl- and glucosylceramide levels were not affected by any of the interventions. In addition, the distribution pattern of all ceramide species remained unaltered. Conclusions: Although we confirm that MCFA do not lead to ceramide and IMTG accumulation in skeletal muscle tissue in humans, they do induce insulin resistance. These results indicate that, in humans, MCFA may not be beneficial in preventing peripheral insulin resistance.

scholarly journals Small amounts of dietary medium-chain fatty acids protect against insulin resistance during caloric excess in humans

2020 ◽  
Author(s):  
Ada Admin ◽  
Anne-Marie Lundsgaard ◽  
Andreas M. Fritzen ◽  
Kim. A. Sjøberg ◽  
Maximilian Kleinert ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
High Fat Diet ◽  
Glycogen Synthase ◽  
Whole Body ◽  
Glucose Disposal ◽  
High Fat ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Chain Fatty Acids

Medium-chain fatty acids (MCFAs) have in rodents been shown to have protective effects on glucose homeostasis during high-fat overfeeding. In this study, we investigated whether dietary MCFAs protect against insulin resistance induced by a hypercaloric high-fat diet in humans. Healthy, lean men ingested a eucaloric control diet and a three-day hypercaloric high-fat diet (+75% energy, 81-83E% fat) in randomized order. For one group (n=8), the high-fat diet was enriched with saturated long-chain FAs (LCSFA-HFD), while the other group (n=9) ingested a matched diet, but with ~30 g (5E%) saturated MCFAs (MCSFA-HFD) in substitution for a corresponding fraction of the saturated LCFAs. A hyperinsulinemic-euglycemic clamp with femoral arteriovenous balance and glucose tracer was applied after the control and hypercaloric diets. In LCSFA-HFD, whole body insulin sensitivity and peripheral insulin-stimulated glucose disposal were reduced. These impairments were prevented in MCSFA-HFD, accompanied by increased basal FA oxidation, maintained glucose metabolic flexibility, increased non-oxidative glucose disposal related to lower starting glycogen content and increased glycogen synthase activity, together with increased muscle lactate production. In conclusion, substitution of a small amount of dietary LCFAs with MCFAs rescues insulin action in conditions of lipid-induced energy excess.

Medium-chain fatty acids ameliorate insulin resistance caused by high-fat diets in rats

2009 ◽  
Vol 25 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Silvia Wein ◽  
Siegfried Wolffram ◽  
Jürgen Schrezenmeir ◽  
Daniela Gašperiková ◽  
Iwar Klimeš ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
High Fat ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
High Fat Diets ◽  
Fat Diets ◽  
Ameliorate Insulin Resistance ◽  
Chain Fatty Acids

scholarly journals Small amounts of dietary medium-chain fatty acids protect against insulin resistance during caloric excess in humans

2020 ◽  
Author(s):  
Ada Admin ◽  
Anne-Marie Lundsgaard ◽  
Andreas M. Fritzen ◽  
Kim. A. Sjøberg ◽  
Maximilian Kleinert ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
High Fat Diet ◽  
Glycogen Synthase ◽  
Whole Body ◽  
Glucose Disposal ◽  
High Fat ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Chain Fatty Acids

Medium-chain fatty acids (MCFAs) have in rodents been shown to have protective effects on glucose homeostasis during high-fat overfeeding. In this study, we investigated whether dietary MCFAs protect against insulin resistance induced by a hypercaloric high-fat diet in humans. Healthy, lean men ingested a eucaloric control diet and a three-day hypercaloric high-fat diet (+75% energy, 81-83E% fat) in randomized order. For one group (n=8), the high-fat diet was enriched with saturated long-chain FAs (LCSFA-HFD), while the other group (n=9) ingested a matched diet, but with ~30 g (5E%) saturated MCFAs (MCSFA-HFD) in substitution for a corresponding fraction of the saturated LCFAs. A hyperinsulinemic-euglycemic clamp with femoral arteriovenous balance and glucose tracer was applied after the control and hypercaloric diets. In LCSFA-HFD, whole body insulin sensitivity and peripheral insulin-stimulated glucose disposal were reduced. These impairments were prevented in MCSFA-HFD, accompanied by increased basal FA oxidation, maintained glucose metabolic flexibility, increased non-oxidative glucose disposal related to lower starting glycogen content and increased glycogen synthase activity, together with increased muscle lactate production. In conclusion, substitution of a small amount of dietary LCFAs with MCFAs rescues insulin action in conditions of lipid-induced energy excess.

Enhanced Bioavailability of Curcumin Nanoemulsions Stabilized with Phosphatidylcholine Modified with Medium Chain Fatty Acids

2017 ◽  
Vol 14 (3) ◽  
pp. 377-385 ◽  
Author(s):  
Angelica A. Ochoa-Flores ◽  
Josafat A. Hernández-Becerra ◽  
Adriana Cavazos-Garduño ◽  
Ida Soto-Rodríguez ◽  
Maria Guadalupe Sanchez-Otero ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Chain Fatty Acids

scholarly journals Effects of ketogenic diet containing medium-chain fatty acids on serum inflammatory factor and mTOR signaling pathway in rats

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Huan Liu ◽  
Jingwei Huang ◽  
Hui Liu ◽  
Feng Li ◽  
Quansheng Peng ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Caloric Restriction ◽  
Ketogenic Diet ◽  
Mtor Pathway ◽  
Inflammatory Factor ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Sd Rats ◽  
Anti Inflammatory ◽  
Chain Fatty Acids

Abstract Background The ketogenic diet (KD) can promote the anti-inflammatory metabolic state and increase ketone body level in rats. This study was to explore the effects and differences of KD with or without medium-chain fatty acids (MCFAs) on serum inflammatory factors and mTOR pathway in Sprague–Dawley (SD) rats. Results Male SD rats were assigned to five groups: control diet (C), 20% caloric restriction diet (LC), 20% caloric restriction ketogenic diet (containing MCFAs) (LCKD1), 20% caloric restriction ketogenic diet (LCKD2) and 20% caloric restriction foreign ketogenic diet (LCKD3), and fed for 30 d. LC and KD could significantly reduce the body weight of rats; LC and KD containing MCFAs showed anti-inflammatory effects; KD without MCFAs decreased the concentration of mTOR1, while KD containing MCFAs decreased the expression of AMPK, mtor1 and P70sk. Conclusions KD containing MCFAs showed better effects on the mTOR pathway and anti-inflammation than that without MCFAs.

1221 URSODEOXYCHOLYL LYSOPHOSPHATIDYLETHANOLAMIDE GENERATES HEPATOPROTECTIVE CONJUGATED UDCA, PHOSPHATIDYLCHOLINE, MEDIUM-CHAIN FATTY ACIDS AND PLASMALOGEN 16:1

2012 ◽  
Vol 56 ◽  
pp. S484-S485
Author(s):  
W. Chamulitrat ◽  
W. Xu ◽  
A. Pathil-Warth ◽  
G. Liebisch ◽  
G. Schmitz ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Chain Fatty Acids

Determination of free medium-chain fatty acids in beer by stir bar sorptive extraction

2008 ◽  
Vol 1196-1197 ◽  
pp. 96-99 ◽  
Author(s):  
Tomáš Horák ◽  
Jiří Čulík ◽  
Marie Jurková ◽  
Pavel Čejka ◽  
Vladimír Kellner
Keyword(s):  
Fatty Acids ◽  
Stir Bar Sorptive Extraction ◽  
Free Medium ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Sorptive Extraction ◽  
Chain Fatty Acids
Sign in / Sign up

Export Citation Format

Share Document