Document Detail


Pharmacodynamic evaluation of oral estradiol nanoparticles in estrogen deficient (ovariectomized) high-fat diet induced hyperlipidemic rat model.
MedLine Citation:
PMID:  18787933     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: It is believed that estrogen deficiency contributes importantly to the pathogenesis of menopausal metabolic syndrome and symptoms can be ameliorated with estradiol therapy. The present study reports efficacy of 17-beta estradiol encapsulated nanoparticles in treating the postmenopausal dyslipidemic condition. MATERIALS AND METHODS: Estradiol encapsulated poly(lactide-co-glycolide) (PLGA) nanoparticles were prepared by emulsion-diffusion-evaporation method and evaluated in estrogen deficient (ovariectomized) high fat diet induced hyperlipidemic rat model. RESULTS: The results obtained showed that estradiol nanoparticles were equally/more effective in treatment of estrogen deficient hyperlipidemic conditions at three times reduced dose and frequency in comparison to that of drug suspension administered orally. CONCLUSION: Together, these results demonstrate the ability of nanoparticles in improving oral bioavailability/efficacy of estradiol.
Authors:
G Mittal; G Chandraiah; P Ramarao; M N V Ravi Kumar
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-09-12
Journal Detail:
Title:  Pharmaceutical research     Volume:  26     ISSN:  0724-8741     ISO Abbreviation:  Pharm. Res.     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-12-17     Completed Date:  2009-03-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406521     Medline TA:  Pharm Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  218-23     Citation Subset:  IM    
Affiliation:
Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cholesterol / blood
Diet
Dietary Fats / pharmacology*
Estradiol / administration & dosage*,  pharmacology*
Female
Hyperlipidemias / metabolism*
Lactic Acid
Nanoparticles*
Ovariectomy*
Particle Size
Polyglycolic Acid
Rats
Rats, Sprague-Dawley
Thiobarbituric Acid Reactive Substances / metabolism
Triglycerides / blood
Chemical
Reg. No./Substance:
0/Dietary Fats; 0/Thiobarbituric Acid Reactive Substances; 0/Triglycerides; 0/polylactic acid-polyglycolic acid copolymer; 26009-03-0/Polyglycolic Acid; 50-21-5/Lactic Acid; 50-28-2/Estradiol; 57-88-5/Cholesterol

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


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