Anti-hypertensive effect of gamma-aminobutyric acid (GABA)-rich Chlorella on high-normal blood pressure and borderline hypertension in placebo-controlled double blind study
| Autor: | Chiaki Nishimura, Toshio Nakamura, Matsubayashi Tsuneo, Morio Shimada, Takashi Hasegawa, Toshihiro Kanno, Hiroko Kan |
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| Rok vydání: | 2009 |
| Předmět: |
Adult
Male medicine.medical_specialty Physiology Blood Pressure Chlorella Placebo gamma-Aminobutyric acid Body Mass Index Double blind study Double-Blind Method Oral administration Heart Rate Internal medicine Internal Medicine Medicine Humans Adverse effect Antihypertensive Agents gamma-Aminobutyric Acid biology Dose-Response Relationship Drug business.industry Plant Extracts General Medicine Middle Aged biology.organism_classification Endocrinology Blood pressure Treatment Outcome Hypertension Female business Abnormal laboratory findings medicine.drug |
| Zdroj: | Clinical and experimental hypertension (New York, N.Y. : 1993). 31(4) |
| ISSN: | 1525-6006 |
| Popis: | The anti-hypertensive effect of GABA-rich Chlorella was studied after oral administration for 12 weeks in the subjects with high-normal blood pressure and borderline hypertension in the placebo-controlled, double-blind manner in order to investigate if GABA-rich Chlorella, a dietary supplement, is useful in control of blood pressure. Eighty subjects with Systolic blood pressure (SBP) 130-159 mmHg or diastolic blood pressure (DBP) 85-99 mmHg (40 subjects/group) took the blinded substance of GABA-rich Chlorella (20 mg as gamma-aminobutyric acid) or placebo twice daily for 12 weeks, and had follow-up observation for an additional 4 weeks. Systolic blood pressure in the subjects given GABA-rich Chlorella significantly decreased compared with placebo (p < 0.01). Diastolic blood pressure had the tendency to decrease after intake of GABA-rich Chlorella. Neither adverse events nor abnormal laboratory findings were reported throughout the study period. Reduction of SBP in the subjects with borderline hypertension was higher than those in the subjects with high-normal blood pressure. These results suggest that GABA-rich Chlorella significantly decreased high-normal blood pressure and borderline hypertension, and is a beneficial dietary supplement for prevention of the development of hypertension. |
| Databáze: | OpenAIRE |
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