The effects of Labisia pumila extracts on bone microarchitecture of ovariectomized-induced osteoporosis rats: A micro-CT analysis

Article type: Research Article

Authors: Effendy, Nadia Mohd^{a; b} | Khamis, Mohd Fadhli^c | Shuid, Ahmad Nazrun^{b; *}

Affiliations: [a] Faculty of Medicine, Universiti Sains Islam Malaysia, Jalan Pandan Utama, Pandan Indah, Kuala Lumpur, Malaysia | [b] Department of Pharmacology, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia | [c] School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia

Correspondence: [*] Corresponding author: Ahmad Nazrun Shuid, Department of Pharmacology, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, 56000 Cheras, Kuala Lumpur, Malaysia. Tel.: +603 91459576; Fax: +603 91459547; E-mail: anazrun@ppukm.edu.my.

Abstract: BACKGOUND: Labisia pumila (LP) is a popular herb used by women over the past few decades. This herb has shown potentials as an alternative agent for treatment and prevention of postmenopausal osteoporosis. It was observed in previous studies that supplementation to ovariectomized rats were associated with increased bone antioxidative enzymes and reduced lipid peroxidation activity. It had also improved bone formation markers in ovariectomized rats. This study aimed to evaluate the effects of giving different forms of LP extracts on the trabecular bone microarchitecture of ovariectomised rats. METHODS: Forty-eight female Sprague-Dawley rats were randomly divided into sham-operated (Sham), ovariectomized control (OVX), ovariectomized and given estrogen at 64.5 μg/kg (ERT), ovariectomized and given LP aqueous extract (LPaq), LP methanol extract (LPmet) and LP ethanol extract (LPet) at 100 mg/kg, respectively. Treatments were given daily via oral gavages for nine weeks. Following sacrifice, femora were dissected out for bone microarchitectural analysis using an in vitro micro-CT, which provided three dimensional informations on bone microarchitecture. RESULTS: LPaq was the most effective extract found to improve the bone microarchitectural paramaters which comprised ofBone volume fraction (BV/TV), Trabecular separation (Tb.Sp), Trabecular number (Tb.N), Connective density (Conn.dens), Structure model index (SMI) and Degree of anisotropy (DA). CONCLUSION: LPaq was effective in protecting the bone of postmenopausal osteoporosis rat model against microarchitectural deterioration.

Keywords: Labisia pumila, osteoporosis, bone microarchitecture, micro-CT, imaging

DOI: 10.3233/XST-16115

Journal: Journal of X-Ray Science and Technology, vol. 25, no. 1, pp. 101-112, 2017