Fully hydrogenated canola oil extends lifespan in stroke-prone spontaneously hypertensive rats

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Fully hydrogenated canola oil extends lifespan in stroke-prone spontaneously hypertensive rats

https://gifu-pu.repo.nii.ac.jp/records/14390

Item type		研究室原著論文(1)
公開日		2022-03-02
タイトル
	タイトル	Fully hydrogenated canola oil extends lifespan in stroke-prone spontaneously hypertensive rats
タイトル
	タイトル	Fully hydrogenated canola oil extends lifespan in stroke-prone spontaneously hypertensive rats
	言語	en
言語
	言語	eng
資源タイプ
	資源タイプ識別子	http://purl.org/coar/resource_type/c_6501
	資源タイプ	journal article
アクセス権
	アクセス権	metadata only access
	アクセス権URI	http://purl.org/coar/access_right/c_14cb
抄録
	値	Background: Canola oil (Can) and several vegetable oils shorten the lifespan of stroke-prone spontaneously hypertensive rats (SHRSP). Although similar lifespan shortening has been reported for partially hydrogenated Can, the efficacy of fully hydrogenated oils on the lifespan remains unknown. The present study aimed to investigate the lifespan of SHRSP fed diets containing 10 % (w/w) of fully hydrogenated Can (FHCO) or other oils. Methods: Survival test: Upon weaning, male SHRSP were fed a basal diet for rodents mixed with one of the test oils -i.e., FHCO, Can, lard (Lrd), and palm oil (Plm) throughout the experiment. The animals could freely access the diet and drinking water (water containing 1 % NaCl), and their body weight, food intake, and lifespan were recorded. Biochemical analysis test: Male SHRSP were fed a test diet with either FHCO, Can, or soybean oil (Soy) under the same condition, except to emphasize effects of fat, that no NaCl loading was applied. Soy was used as a fat source in the basal diet and was set the control group. Blood pressures was checked every 2 weeks, and serum fat levels and histological analyses of the brain and kidney were examined after 7 or 12 weeks of feeding. Results: During the survival study period, the food consumption of FHCO-fed rats significantly increased (15-20 % w/w) compared with that of rats fed any other oil. However, the body weight gain in the FHCO group was significantly less (10-12 %) than that in the control group at 9-11 weeks old. The FHCO (> 180 days) intervention had the greatest effect on lifespan, followed by the Lrd (115 ± 6 days), Plm (101 ± 2 days), and Can (94 ± 3 days) diets. FHCO remarkably decreased the serum cholesterol level compared with Can and the systolic blood pressure from 12 to 16 weeks of age. In addition, while some rats in the Can group exhibited brain hemorrhaging and renal dysfunction at 16 weeks old, no symptoms were observed in the FHCO group. Conclusion: This current study suggests that complete hydrogenation decreases the toxicity of Can and even prolongs the lifespan in SHRSP.
書誌情報		en : Lipids in Health and Disease 巻 20, 号 1, 発行日 2021