Abstract Title:

Dietary Hemp Seeds More Effectively Attenuate Disorders in Genetically Obese Rats than Their Lipid Fraction.

Abstract Source:

J Nutr. 2020 Jun 1 ;150(6):1425-1433. PMID: 32275310

Abstract Author(s):

Paulina M Opyd, Adam Jurgoński, Bartosz Fotschki, Jerzy Juśkiewicz

Article Affiliation:

Paulina M Opyd


BACKGROUND: Hemp seeds are rich in PUFAs and other bioactives that can attenuate the development of obesity-related disorders; however, the extent to which their lipid fraction is responsible for this effect is unknown.

OBJECTIVE: We hypothesized that hemp seed or hemp oil supplementation can attenuate genetically determined disorders and that the former are more effective in doing so.

METHODS: Lean and obese male Zucker rats, aged 8 wk, weighing 174 ± 4.2 g and 223 ± 3.8 g, respectively, were allocated to 4 groups. The lean (LC) and obese controls (OC) were fed a standard diet, whereas the other 2 obese groups were fed a modified diet in which hemp oil (4% diet; O + HO) or hemp seeds (12% diet; O + HS) were included. All diets hadthe same proportions of protein (18%), fat (8%), and fiber (5%) and a similar carbohydrate proportion (∼52%). Diets fed to O + HO and O + HS had similar fatty acid profiles. After 4 wk, markers of gut and liver function, antioxidant status, and lipid metabolism were measured.

RESULTS: The total SCFA concentration in the cecal digesta was lower in OC (64.8 ± 4.21 µmol/g) compared with LC (78.1 ± 2.83 µmol/g) (P ≤ 0.05), whereas it was greater in O + HS (89 ± 4.41 µmol/g) compared with LC, OC, and O + HO (69.7 ± 2.68 µmol/g) (P ≤ 0.05). Plasma total cholesterol was greater in OC (6.20 ± 0.198 mmol/L) and O + HO (5.60 ± 0.084 mmol/L) compared with LC (2.71 ± 0.094 mmol/L) (P ≤ 0.05); in O + HS, the concentration did not differ from the other groups (5.16 ± 0.278 mmol/L). The liver cholesterol concentration was greater in OC (1.79 ± 0.379 mg/g) compared with the other groups (1.28-1.43 mg/g) (P ≤ 0.05). Hepatic expression of peroxisome proliferator-activated receptor γ was lower in OC (11.9 ± 0.93 units) compared with LC (17.3 ± 1.3 units) (P ≤ 0.05), whereas it was greater in O + HS (19.2 ± 1.04 units) compared with OC and O + HO (14.0 ± 1.33 units) (P ≤ 0.05).

CONCLUSIONS: Dietary hemp seeds more effectively attenuate metabolic disorders in genetically obese rats than the oil extracted from them, which suggests that the lipid fraction is only partly responsible for these effects.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Hypolipidemic : CK(3189) : AC(707)

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