Anti-osteoporotic effects of mixed compositions of extracellular polymers isolated from Aureobasidium pullulans and Textoria morbifera in ovariectomized mice

• Published in: BMC complementary and alternative medicine 2018-11, Vol.18 (1), p.295-295, Article 295
• Main Authors: Cho, Chang-Soo, Jeong, Hye-Seong, Kim, In-Young, Jung, Go-Woon, Ku, Bon-Hwa, Park, Dong-Chan, Moon, Seung-Bae, Cho, Hyung-Rae, Bashir, Khawaja Muhammad Imran, Ku, Sae Kwang, Choi, Jae-Suk
• Format: Article
• Language: English
• Subjects: Alkaline phosphatase; Alternative medicine; Analysis; Animals; Anti-osteoporotic effect; Araliaceae - chemistry; Ascomycota - chemistry; Aureobasidium pullulans; Biocompatibility; Biological Products - pharmacology; Bisphosphonates; Body weight; Body weight gain; Bone density; Bone Density - drug effects; Bone Density Conservation Agents - pharmacology; Bone mass; Bone mineral density; Bone resorption; Bone strength; Calcium; Care and treatment; Composition effects; Curing agents; Diabetes; Disease Models, Animal; Drug dosages; Endocrinology; Exopolymer; Extracellular Polymeric Substance Matrix - chemistry; Extracellular polymers; Failure load; Female; Femur; Femur - drug effects; Femur - pathology; Formulations; Fractures; Functional foods & nutraceuticals; Glucan; Immunology; Mice; Osteocalcin; Osteoporosis; Osteoporosis - pathology; Ovariectomy; Pharmacology; Phosphorus; Polymers; Prevention; Public health; Risedronic acid; Rodents; Sodium; Surgery; Tea; Textoria morbifera; Women's health; β-Glucans
• ISSN: 1472-6882; 1472-6882
• DOI: 10.1186/s12906-018-2362-y

Extracellular polymeric substances isolated from Aureobasidium pullulans (EAP), containing specifically 13% β-1,3/1,6-glucan, have shown various favorable bone-preserving effects. Textoria morbifera Nakai (TM) tree has been used as an ingredient in traditional medicine and tea for various pharmacological purposes. Thus, the present study was aimed to examine the synergistic anti-osteoporotic potential of mixtures containing different proportions of EAP and TM compared with that of the single formulations of each herbal extract using bilateral ovariectomized (OVX) mice, a renowned rodent model for studying human osteoporosis. Thirty five days after bilateral-OVX surgery, 9 combinations of EAP:TM (ratios = 1:1, 1:3, 1:5, 1:7, 1:9, 3:1, 5:1, 7:1, 9:1) and single separate formulations of EAP or TM were supplied orally, once a day for 35 days at a final concentration of 200 mg/kg. Variations in body weight gains during the experimental periods, as well as femur weights, bone mineral density (BMD), bone strength (failure load), and mineral content (calcium [Ca] and inorganic phosphorus [IP]) following sacrifice were measured. Furthermore, histomorphometric and histological profile analyses of serum biochemical parameters (osteocalcin content and bone specific alkaline phosphatase [bALP] activity) were conducted following sacrifice. Femurs histomorphometric analyses were also conducted for bone resorption, structure and mass. The results for the mixed formulations of EAP:TM and separate formulations were compared with those of risedronate sodium (RES). The EAP:TM (3:1) formulation synergistically enhanced the anti-osteoporotic potential of individual EAP or TM formulations, possibly due to enhanced variety of the active ingredients. Furthermore, the effects of EAP:TM were comparable to those of RES (2.5 mg/kg) treatment. The results of this study suggest that, the EAP:TM (3:1) combination might act as a new pharmaceutical agent and/or health functional food substance for curing osteoporosis in menopausal women.