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Abstract Title:

Preventive and treatment effects of a hemp seed (Cannabis sativa L.) meal protein hydrolysate against high blood pressure in spontaneously hypertensive rats.

Abstract Source:

Eur J Nutr. 2014 Aug ;53(5):1237-46. Epub 2013 Nov 29. PMID: 24292743

Abstract Author(s):

Abraham T Girgih, Adeola Alashi, Rong He, Sunday Malomo, Rotimi E Aluko

Article Affiliation:

Abraham T Girgih

Abstract:

PURPOSE: This work determined the ability of hemp seed meal protein hydrolysate (HMH)-containing diets to attenuate elevated blood pressure (hypertension) development in spontaneously hypertensive rats (SHRs). Effects of diets on plasma levels of renin and angiotensin I-converting enzyme (ACE) in the SHRs were also determined.

METHODS: Defatted hemp seed protein meal was hydrolyzed using simulated gastrointestinal tract digestion with pepsin followed by pancreatin, and the resulting HMH used as a source of antihypertensive peptides. The HMH was substituted for casein at 0.5 and 1.0% levels and fed to young growing rats for 8 weeks (preventive phase) or adult rats for 4 weeks (treatment phase).

RESULTS: Feeding of young growing SHRs with HMH resulted in attenuation of the normal increases in systolic blood pressure (SBP) with an average value of ~120 mmHg when compared to the casein-only group of rats (control) with a maximum of 158 mm Hg (p<0.05). Feeding adult rats (SBP ~145 mmHg) with same diets during a 4-week period led to significant (p<0.05) reduction in SBP to ~119 mmHg in comparison with 150 mmHg for the control rats. Plasma ACE activity was significantly (p<0.05) suppressed (0.047-0.059 U/mL) in HMH-fed rats when compared to control rats (0.123 U/mL). Plasma renin level was also decreased for HMH-fed rats (0.040-0.054μg/mL) when compared to control rats that were fed only with casein (0.151 μg/mL).

CONCLUSIONS: The results suggest that HMH with strong hypotensive effects in SHRs could be used as a therapeutic agent for both the prevention and treatment of hypertension.

Study Type : Animal Study

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Sayer Ji
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