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Table 2 Acutea and chronicb effects of monounsaturated fatty acids (MUFAs) and omega-3 polyunsaturated fatty acids (PUFAs) on glucagon-like peptide-1 (GLP-1) secretion and associated outcomes

From: Nutritional modulation of endogenous glucagon-like peptide-1 secretion: a review

Studies

Experimental model

Dietary intervention

Main outcomes measured

Thomsen 1999

[137]

〉 Healthy men and women

MUFAs from olive oila (80 g)

↑ GLP-1 blood concentrations

↑ Glucose-insulinotropic peptide blood concentrations

Thomsen 2003

[138]

〉 Men and women with T2D

MUFAs from olive oila (80 g)

↑ GLP-1 blood concentrations

↓ Triglyceride blood concentrations

↑ High-density lipoprotein cholesterol blood concentrations

Hirasawa 2005

[136]

〉 Male C57/B6 rats

α-linolenic acid (0.1 μmol)a

↑ GLP-1 blood concentrations

↑ Insulin blood concentrations

Prieto 2005

[139]

〉 Wistar rats

MUFAs from olive oilb,c

↑ GLP-1 blood concentrations

↑ Glucose-stimulated insulin secretion

↑ Glucose tolerance

Cancelas 2006

[140]

〉 Streptozotocin-treated diabetic rats

MUFAs from olive oilb,c

↑ GLP-1 postprandial secretion

↑ Insulin sensitivity

↓ Weight gain

Adachi 2006

[142]

〉 Male C57BL/6 J mice

〉 Diabetic male NSY mice

〉 C3H/He mice

α-linolenic acid (0.3 μmol)a

↑ GLP-1 blood concentrations

↑ Insulin blood concentrations

↓ Blood glucose concentrations

Paniagua 2007

[141]

〉 Insulin resistant men and women

MUFAs from an olive-oil containing Mediterranean diet (23% of total energy intake)b

↑ Postprandial GLP-1 concentrations

↑ Insulin sensitivity

↓ Postprandial insulin secretion

↓ Fasting and postprandial blood glucose concentrations

Tanaka 2008

[143]

〉 Male Wistar rats

α-linolenic acid (3 μmol)a,b

↑ GLP-1 blood concentrations

↑ pancreatic β-cell number and mass

Cheshmehkani 2015 [144]

〉 Male Sprague-Dawley rats

Fish or flaxseed oilb,d

(10% of diet)

↑ FFAR4 expression in the colon

↓ TNFα blood concentrations

  1. FFAR4: Free fatty acid receptor 4; GLP-1: Glucagon-like peptide-1; MUFAs: Monounsaturated fatty acids; SCFAs: Short-chain fatty acids; TNFα: Tumour necrosis factor α
  2. a Acute effect (5 minutes post-consumption)
  3. b Chronic effect (28 to 50 days of consumption)
  4. c Specific MUFA content not known
  5. d weight : weight proportion