Abstract |
Angiotensin-converting enzyme ( ACE) inhibitors are important agents in blood pressure (BP) management. It was recently shown that the egg-protein hydrolysate NWT-03 inhibited ACE in Zucker diabetic fatty rats. We therefore designed a dose-finding study to assess the effects of 1, 2 and 5 g NWT-03 on daytime, 36-h, and night-time systolic and diastolic BP (SBP and DBP) in ninety-two generally healthy subjects with normal BP (n 29), high-normal BP (n 34) or mild hypertension (n 29). The study had a cross-over design with six treatment arms (1 g NWT-03 or placebo in period 1 and placebo or 1 g NWT-03 in period 2, 2 g NTW-03 or placebo in period 1 and placebo or 2 g NWT-03 in period 2, or 5 g NTW-03 or placebo in period 1 and placebo or 5 g NTW-03 in period 2). A comparable number of subjects from each BP class were included in each study arm. Duration of both treatments in each arm was 7 d, separated by 5-d wash-out periods. BP was measured with an ambulatory BP monitor before and after the treatments. In mild-hypertensive subjects, 2 g NWT-03 significantly decreased daytime SBP (7·9 mmHg; P=0·006), daytime DBP (4·2 mmHg; P=0·009), 36-h SBP (6·9 mmHg; P=0·015) and 36-h DBP (3·5 mmHg; P=0·035) compared with placebo subjects. In addition, in mild-hypertensive subjects, 5 g NWT-03 significantly decreased night-time SBP (14·8 mmHg; P=0·008) and night-time DBP (8·4 mmHg; P=0·020) compared with that in placebo subjects. To conclude, we found that 2 g NWT-03 lowered daytime and 36-h BP in subjects with mild hypertension, and 5 g NWT-03 lowered night-time BP in subjects with mild hypertension. As no dose-response relationship was evident, these results should be interpreted with care, and additional studies are needed.
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Authors | Jogchum Plat, Nadine Severins, Steve Morrison, Ronald P Mensink |
Journal | The British journal of nutrition
(Br J Nutr)
Vol. 117
Issue 7
Pg. 942-950
(Apr 2017)
ISSN: 1475-2662 [Electronic] England |
PMID | 28485264
(Publication Type: Clinical Trial, Comparative Study, Journal Article, Randomized Controlled Trial)
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Chemical References |
- Angiotensin-Converting Enzyme Inhibitors
- Antihypertensive Agents
- NWT-03
- Protein Hydrolysates
- hen egg lysozyme
- Muramidase
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Topics |
- Adult
- Angiotensin-Converting Enzyme Inhibitors
(administration & dosage, adverse effects, therapeutic use)
- Antihypertensive Agents
(administration & dosage, adverse effects, therapeutic use)
- Blood Pressure Monitoring, Ambulatory
- Circadian Rhythm
- Cross-Over Studies
- Dietary Supplements
(adverse effects)
- Female
- Humans
- Hypertension
(diet therapy, physiopathology)
- Male
- Middle Aged
- Muramidase
(administration & dosage, adverse effects, therapeutic use)
- Prehypertension
(diet therapy, physiopathology)
- Protein Hydrolysates
(administration & dosage, adverse effects, therapeutic use)
- Reproducibility of Results
- Severity of Illness Index
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