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Published in: BMC Complementary Medicine and Therapies 1/2015

Open Access 01-12-2015 | Research article

Time and dose-dependent effects of Labisia pumila on the bone strength of postmenopausal osteoporosis rat model

Authors: Nadia Mohd Effendy, Shahrum Abdullah, Mohd Faridz Mod Yunoh, Ahmad Nazrun Shuid

Published in: BMC Complementary Medicine and Therapies | Issue 1/2015

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Abstract

Background

Post-menopausal osteoporosis has long been treated and prevented by estrogen replacement therapy (ERT). Despite its effectiveness, ERT is associated with serious adverse effects. Labisia pumila var. alata (LP) is a herb with potential as an alternative agent to ERT due to its phytoestrogenic, antioxidative and anti-inflammatory effects on bone. This study aimed to determine the effects of LP supplementation on bone biomechanical strength of postmenopausal osteoporosis rat model.

Methods

Ninety-six female Sprague–Dawley rats aged 4 to 5 months old were randomly divided into six groups; six rats in the baseline group (BL) and eighteen rats in each group of; Sham- operated (Sham), ovariectomised control (OVXC) and ovariectomised with daily oral gavages of Premarin at 64.5 μg/kg (ERT), LP at 20 mg/kg (LP20) and LP at 100 mg/kg (LP100) respectively. These groups were subdivided into three, six and nine weeks of treatment periods. Rats in BL group were euthanized before the start of the study, while other rats were euthanized after completion of their treatments. Femora were dissected out for biomechanical strength analysis using Instron Universal Model 5848 Micro Tester.

Results

OVXC group showed deterioration in the bone biomechanical strength with time. Both ERT and LP supplemented rats showed improvements in bone strength parameters such as maximum load, displacement, stiffness, stress, and Young Modulus. The most improved bone strength was seen in rats given LP at the dose of 100 mg/kg for nine weeks.

Conclusion

LP supplementation at 100 mg/kg was more effective than ERT in reversing ovariectomy-induced bone biomechanical changes.
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Metadata
Title
Time and dose-dependent effects of Labisia pumila on the bone strength of postmenopausal osteoporosis rat model
Authors
Nadia Mohd Effendy
Shahrum Abdullah
Mohd Faridz Mod Yunoh
Ahmad Nazrun Shuid
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2015
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-015-0567-x

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