Document Detail


Effects of capsaicin and isoflavone on blood pressure and serum levels of insulin-like growth factor-I in normotensive and hypertensive volunteers with alopecia.
MedLine Citation:
PMID:  19502719     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Insulin-like growth factor-I (IGF-I) reduces arterial blood pressure. Since administration of capsaicin and isoflavone increases serum levels of IGF-I by sensory neuron stimulation in subjects with alopecia, it is possible that administration of capsaicin and isoflavone reduces arterial blood pressure in patients with hypertension. Systolic and diastolic blood pressure (BP) and serum levels of IGF-I were determined before and at 1, 3, and 5 months after administration of capsaicin and isoflavone in 42 volunteers with alopecia, 29 normotensive and 13 hypertensive volunteers. Neither systolic nor diastolic BP changed in the normotensive volunteers after combined administration of capsaicin and isoflavone. In contrast, systolic and diastolic BP was significantly reduced in hypertensive volunteers after administration of capsaicin and isoflavone. Serum levels of IGF-I significantly increased in both normotensive and hypertensive volunteers after administration of capsaicin and isoflavone. These observations suggest that administration of capsaicin and isoflavone might reduce BP in hypertensive, but not in normotensive subjects, probably by increasing serum levels of IGF-I.
Authors:
Naoaki Harada; Kenji Okajima
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Publication Detail:
Type:  Journal Article     Date:  2009-06-07
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  73     ISSN:  1347-6947     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-24     Completed Date:  2009-10-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1456-9     Citation Subset:  IM    
Affiliation:
Department of Translational Medical Science Research, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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MeSH Terms
Descriptor/Qualifier:
Alopecia / blood*,  complications
Blood Pressure / drug effects*
Capsaicin / pharmacology*
Case-Control Studies
Humans
Hypertension / blood*,  complications
Insulin-Like Growth Factor I / metabolism*
Isoflavones / pharmacology*
Chemical
Reg. No./Substance:
0/Isoflavones; 404-86-4/Capsaicin; 67763-96-6/Insulin-Like Growth Factor I

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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