Research Article | Volume: 7, Issue: 5, May, 2017

Phenolic constituents of Trifolium resupinatum var. minus: Protection against rosiglitazone induced osteoporosis in type 2 diabetic male rats

Mona E. S. Kassem,  Mona M. Marzouk,  Amani A. Mostafa,  Wagdy K. B. Khalil,  Hoda F. Booles   
Mona E. S. Kassem1, Mona M. Marzouk1, Amani A. Mostafa2, Wagdy K. B. Khalil3, Hoda F. Booles3

1Department of Phytochemistry and Plant Systematics, National Research Centre, 33 El Bohouth St., Dokki, Giza, Egypt.

2Department of Ceramics, Laboratory of Nanomedicine and Tissue Engineering, National Research Centre, 33 El Bohouth St., Dokki, Giza, Egypt.

3Department of Cell Biology, National Research Centre, 33 El Bohouth St., Dokki, Giza, Egypt.

Open Access   

Published:  May 30, 2017

DOI: 10.7324/JAPS.2017.70530
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Abstract

Thiazolidinediones, an antidiabetic drug, promote bone loss and provoke fractures, suggesting a protective role of phytoestrogens rich herbal supplement along with rosiglitazone. The aqueous methanol extract (AME) of Trifolium resupinatum L. var. minus Boiss. (Fabaceae) and defatted AME (DAME) protective effects were assessed against rosiglitazone (Ros) inducing osteoporosis in type 2 diabetic male rats. Eighty male Albino rats (10/group) were used. OPG, RANKL and β2- microglobulin serum levels, femur BMD (Dexa) and OC, COL and ACP5 osteogenic genes mRNA (qRT-PCR) were evaluated in Ros-rats + AME or DAME (24, 12, 6 mg/kg bw/d, each). Ros-rats + DAME (24 mg/kgbw) revealed the most significant effects on bone biomarkers. It modulated OPG (ng mL-1), RANKL (pg mL-1) and β2- microglobulin (μg mL-1) serum levels. It also improved BMD (mg cm-2) of proximal, distal and total femur bones compared to Ros-rats and up-regulated OC and COL and down-regulated ACP5 expressions. The phenolics of bioactive extract (DAME) were evaluated. Twelve known phenolics were isolated and characterized by chromatographic, chemical and spectral techniques. Their HPLC profiling was also analyzed and showed major phenolics; chlorogenic acid > formononetin> quercetin> pseudobaptigenin. DAME in combination therapy with rosiglitazone provides protective effect on bone, possibly due to its phenolics.


Keyword:     Persian clover Thiazolidinediones diabetes serum bone markers bone mineral density osteogenic genes phytoestrogens.

Citation:

Kassem MES, Marzouk MM, Mostafa AA, Khalil WKB, Booles H. Phenolic constituents of Trifolium resupinatum var. minus: Protection against rosiglitazone induced osteoporosis in type 2 diabetic male rats. J App Pharm Sci, 2017; 7 (05): 174-183.

Copyright:The Author(s). This is an open access article distributed under the Creative Commons Attribution Non-Commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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