啤酒花及其活性成分黄腐酚抗糖皮质激素性骨质疏松的作用研究

目的 研究对啤酒花及其活性成分黄腐酚抗糖皮质激素性骨质疏松（GIOP）作用。方法 腹腔注射地塞米松（DEX）造模,并结合Micro-CT及Elisa试剂盒检测等方法,对小鼠股骨的骨微结构、骨密度及血清骨生化指标进行评价。同时,采用DEX损伤成骨细胞,对其增殖、分化水平及骨形成相关蛋白的表达进行评价。结果 啤酒花提取物及黄腐酚可显著改善GIOP小鼠的骨微结构破坏,增强骨密度,改善骨小梁参数。在成骨细胞水平上,啤酒花及黄腐酚既可促进DEX损伤成骨细胞的增殖、分化,又可提高骨钙素（BGP）、骨形成蛋白2（BMP-2）以及成骨特异性转录因子（Runx-2）的表达水平,促进骨形成。结论 该研究首次明确了啤酒花及黄腐酚具有抗GIOP作用,为抗骨质疏松药物的开发提供了新资源。     

啤酒花经抗氧化途径减轻Aβ损伤成骨细胞作用研究

目的 探讨啤酒花改善β-淀粉样蛋白（Aβ）损伤成骨细胞的骨形成作用及其机制。方法 以新生24 h Wistar大鼠所分离的成骨细胞为研究对象,用Aβ_1-42寡聚体对成骨细胞进行损伤,并用啤酒花提取物进行药物干预。分别采用MTT法、碱性磷酸酶（ALP）活性检测以及茜素红染色法评价成骨细胞的增殖、分化及骨矿化水平,流式细胞仪检测成骨细胞凋亡。采用蛋白质印迹法检测骨形成相关蛋白及氧化应激Nrf2、FoxO1通路蛋白的表达水平,并用免疫荧光检测FoxO1蛋白的入核表达。结果 啤酒花提取物可显著促进Aβ损伤成骨细胞的增殖,提高ALP活性及骨矿化结节水平,抑制细胞凋亡率,并促进骨形成相关蛋白I型胶原酶（COL-I）及骨桥蛋白（OPN）的表达。此外,啤酒花提取物可显著激活Aβ损伤成骨细胞的Nrf2和FoxO1信号通路,促进该氧化应激信号通路相关蛋白的表达,通过抗氧化维持骨代谢平衡。结论 本研究表明啤酒花具有减轻Aβ损伤成骨细胞的作用,初步阐明其作用机制与抗氧化有关,为抗骨质疏松作用机制及药物研发提供了新思路。     

马齿苋对去卵巢小鼠骨代谢生化指标的影响

目的 探讨马齿苋对去卵巢小鼠骨代谢生化指标的影响及其可能的机制。方法 雌性昆明小鼠采用双侧卵巢切除法建立骨质疏松小鼠模型,灌胃给予马齿苋水提取物,连续7周。记录体重、子宫、脾脏与胸腺的重量以及股骨骨重与骨长,血清钙（Ca）、磷（P）和碱性磷酸酶（ALP）水平,肝匀浆中丙二醛（MDA）和超氧化物歧化酶（SOD）水平及HE染色观察骨组织病理学。结果 与模型组相比,马齿苋水提物(WEPO)高剂量组显著抑制了卵巢切除手术(OVX)诱导的体重增加（P<0.05）、胸腺重量的增加（P<0.001）、碱性磷酸酶水平的增加（P<0.05）及显著降低了卵巢切除手术小鼠肝脏中丙二醛的水平（P<0.01）;马齿苋水提物低剂量组显著降低的卵巢切除手术小鼠血清钙的水平（P<0.05）及磷的水平（P<0.01）,且马齿苋水提物低剂量组显著增加了卵巢切除手术小鼠肝脏中超氧化物歧化酶的水平（P<0.01）;马齿苋水提物低剂量组和高剂量组均能增加卵巢切除手术小鼠子宫的重量（P<0.001）和骨长（P<0.05）;马齿苋水提物低剂量组、高剂量组对总胆固醇(TCHO)和骨重均无显著影响（P>0.05）。结论 马齿苋水提物可缓解去卵巢小鼠骨量丢失,改善骨代谢,其作用可能是通过抗氧化实现的。     

黄瓜籽多肽的抗骨质疏松作用

目的:研究黄瓜籽多肽的抗骨质疏松作用.方法:利用噻唑蓝(MTT)法、碱性磷酸酶(ALK)比活性测定、茜素红染色矿化骨结节,研究黄瓜籽多肽对原代培养的成骨细胞增殖、分化的影响;体内试验:对SD大鼠实施手术去除双侧卵巢,造成骨质疏松模型,口服3种(10.0,40.0,160.0 mg·kg-1 ·d-1)剂量黄瓜籽多肽,饲...     

四烯甲萘醌保护成骨细胞氧化损伤的作用研究

目的 考察四烯甲萘醌(MK₄)对成骨细胞氧化损伤的保护作用,阐明MK₄防治骨质疏松作用机制。方法 采用过氧化氢(H₂O₂)刺激小鼠成骨细胞系（MC3T3-E1）氧化应激模型,考察细胞活力、ALP活性和骨结节面积,DCFH-DA法检测活性氧(ROS)水平,JC-1检测线粒体膜电势,Annexin V-FITC/PI法检测细胞凋亡率,RT-PCR法考察氧化应激相关基因FoxO1、FoxO3、SOD、Bcl-2和bax等的mRNA表达。结果 10 μmol/L四烯甲萘醌能显著提高H₂O₂刺激的成骨细胞增殖、ALP活性、骨结节形成面积和增强细胞膜电势,显著降低H₂O₂刺激的成骨细胞内丙二醛和活性氧水平,同时显著降低成骨细胞凋亡率和细胞凋亡因子bax/Bcl-2的mRNA表达水平,显著提高抗氧化酶SOD和转录因子FoxO1、FoxO3的mRNA表达。结论 四烯甲萘醌可通过调控FoxO通路保护成骨细胞氧化损伤和通过下调bax/Bcl-2比例,降低成骨细胞凋亡。     

右归饮联合盐酸雷洛昔芬给药治疗小鼠骨质疏松症

目的 观察右归饮和盐酸雷洛昔芬联合给药对骨质疏松模型小鼠的治疗作用,并研究其作用机制。方法 将C57BL/6雌性小鼠切除卵巢制备骨质疏松模型,手术12周后将小鼠随机分为4组：模型组、右归饮（0.1 g/只）组、盐酸雷洛昔芬（10mg/kg）组和联合给药（右归饮0.1 g/只与盐酸雷洛昔芬10 mg/kg联合给药）组,另设假手术组,连续7周每天ig给药1次。给药结束后,将动物处死,Micro-CT测定骨密度和骨组织微形态,并测定骨形态计量指标——骨体积分数（BV/TV）、骨表面积/骨体积（BS/BV）、骨小梁的平均厚度（Tb.Th）、骨小梁数量（Tb.N）、骨小梁分离度（Tb.Sp）;试剂盒法测定血清中I型胶原氨基端（P1NP）、胶原羧基端（CTx）水平;分离并培养骨髓间充质干细胞,体外培养7 d,CCK-8法测定细胞增殖率,试剂盒法检测分化相关指标碱性磷酸酶（ALP）水平。结果 与模型组比较,右归饮组、盐酸雷洛昔芬组和联合给药组的骨密度、BV/TV、Tb.Th、Tb.N显著升高,BS/BV和Tb.Sp显著降低（P<0.05）;与盐酸雷洛昔芬组比较,联合给药组的BV/TV、Tb.Th、Tb.N显著升高,BS/BV和Tb.Sp显著降低（P<0.05）。联合给药组P1NP水平、细胞增殖率均显著高于其他各组（P<0.05、0.01）。ALP水平显著高于假手术组、模型组、盐酸雷洛昔芬组,显著低于右归饮组（P<0.01）。结论 在给药时间相同的前提下,右归饮和盐酸雷洛昔芬联合给药比单独给药更有效地抑制小鼠骨丢失,通过促进细胞的增殖和分化提高骨形成能力,达到增加骨密度、治疗骨质疏松的效果。     

基于HPLC多波长融合指纹图谱及谱效关系的熟地黄活性成分研究

目的 建立熟地黄HPLC多波长融合指纹图谱并筛选抗糖尿病骨质疏松的活性成分。方法 采用HPLC建立10批熟地黄多波长(203，210，254，334 nm)融合指纹图谱；通过糖尿病骨质疏松大鼠模型药效评价，运用偏最小二乘回归法进行谱效分析，得到主要活性成分并以高糖成骨细胞模型验证其药效，并考察熟地黄的体内抗糖尿病骨质疏松作用。结果 10批熟地黄融合指纹图谱共确定26个共有峰，鉴定出的17个色谱峰与骨形成指标(血清碱性磷酸酶活性)呈正相关，其中峰8(梓醇)和峰12(地黄苷D)的标准回归系数和VIP值最显著，二者均能提高成骨细胞增殖活性和细胞碱性磷酸酶水平。结论 梓醇和地黄苷D具有显著抗糖尿病骨质疏松作用，为熟地黄主要活性成分。多波长融合指纹图谱结合谱效关系可作为活性成分筛选的有效策略。     

强骨饮联合益生菌对大鼠骨质疏松性骨折的愈合作用

目的 研究强骨饮联合益生菌对大鼠骨质疏松性骨折的愈合作用。方法 将♂SD大鼠50只随机分成5组：一般骨折对照组、骨质疏松性骨折模型组、强骨饮组、益生菌组、强骨饮联合益生菌组,每组10只。骨质疏松性骨折模型组和所有治疗组均摘除双侧卵巢制备骨质疏松模型。6周后,每组制备右侧股骨干中段横行骨折模型。造模成功后即给予强骨饮组生药灌胃量102 g·kg^-1,益生菌组灌胃量12.5 g·kg^-1,未给药组灌胃等量生理盐水,每日1次,连续6周。骨密度扫描仪测定骨密度,Micro-CT扫描股骨相关参数,酶联免疫法测定大鼠血清骨源性碱性磷酸酶（bone alkalinephosphatase,BALP）、骨钙素（osteocalcin,OC）、I型胶原C端肽（type I procollagen carboxy-terminal propeptide,CTX-I）,生化仪测定钙浓度（Ca）。HE观察骨折骨痂组织病理变化。结果 与骨质疏松性骨折组比较,强骨饮组或益生菌组均可促进骨折愈合（增加骨小梁数量和骨密度）,增加骨形成参数（BALP和OC）和降低吸收参数（CTX-I）,而强骨饮联合益生菌组作用更明显。结论 益生菌和强骨饮均有促进骨质疏松性骨折愈合的治疗作用,联合用药效果更佳。     

黄腐酚对人卵巢癌耐药细胞株SKOV3/DDP耐药性的影响及其机制★

目的 探讨黄腐酚降低人卵巢癌耐药细胞株SKOV3/DDP耐药性的机制。方法 将KOV3/DDP细胞分为卵巢癌组（无干扰）、10 μmol·L^-1黄腐酚组（10 μmol·L^-1黄腐酚培养）、20 μmol·L^-1黄腐酚组（20 μmol·L^-1黄腐酚培养）、40 μmol·L^-1黄腐酚组（40 μmol·L^-1黄腐酚培养）、80 μmol·L^-1黄腐酚组（80 μmol·L^-1黄腐酚培养）、160 μmol·L^-1黄腐酚组（160 μmol·L^-1黄腐酚培养）。采用CCK-8检测SKOV3/DDP细胞存活率；克隆形成实验检测SKOV3/DDP细胞克隆数目；流式细胞仪检测SKOV3/DDP细胞凋亡率；CCK-8检测黄腐酚对SKOV3/DDP细胞DDP耐药性的影响；免疫印迹检测SKOV3/DDP细胞中耐药蛋白ABCB1、MDR-1和P-gp的表达。结果 与卵巢癌组相比，10 μmol·L^-1黄腐酚组SKOV3/DDP细胞存活率无明显变化（P>0.05）；与10 μmol·L^-1黄腐酚组相比，20、40、80、160 μmol·L^-1黄腐酚组SKOV3/DDP细胞存活率均显著降低（P<0.05）。卵巢癌组及10、20、40、80、160 μmol·L^-1黄腐酚组SKOV3/DDP细胞克隆数目分别为（86±12）、（82±10）、（61±11）、（46±9）、（29±11）及（20±7），组间比较，差异有统计学意义（F=43.270， P<0.001）。卵巢癌组及10、20、40、80、160 μmol·L^-1黄腐酚组SKOV3/DDP细胞凋亡率分别为（2.56±0.20）%、（3.20±0.36）%、（15.21±1.22）%、（26.30±1.60）%、（33.20±2.25）%及（45.63±2.10）%，组间比较，差异有统计学意义（F=775.200， P<0.001）。与DDP相比，DDP联合黄腐酚对SKOV3/DDP细胞的活性抑制率较高，差异有统计学意义（P<0.05）；与卵巢癌组相比，10 μmol·L^-1黄腐酚组ABCB1、MDR-1和P-gp蛋白表达水平无显著差异（P>0.05）；与10 μmol·L^-1黄腐酚组相比，20、40、80、160 μmol·L^-1黄腐酚组SKOV3/DDP细胞中ABCB1、MDR-1和P-gp蛋白表达水平均显著降低（P<0.05）。结论 黄腐酚可降低卵巢癌SKOV3/DDP细胞的耐药性，抑制细胞活性，促进细胞凋亡，可能与下调ABCB1、MDR-1和P-gp蛋白表达相关。     

复方骨肽注射液应用于胸腰椎骨质疏松性骨折患者中的效果及对患者骨密度与骨代谢的影响

目的 分析复方骨肽注射液在胸腰椎骨质疏松性骨折患者中的应用价值。方法 选取2018年1月至2020年1月我院收治的96例胸腰椎骨质疏松性骨折患者为研究对象。所有患者随机分为甲组（钙尔奇D联合复方骨肽注射液治疗）和乙组（钙尔奇D治疗）,各48例。比较两组治疗后的中医症状评分、骨代谢、骨质疏松程度、骨密度水平、视觉模拟评分（VAS）、腰椎疾患治疗成绩评分（JOA）。结果 治疗后,甲组的中医症状评分、JOA评分均高于乙组（P<0.05）;甲组的骨碱性磷酸酶（BALP）、Ⅰ型前胶原氨基端前肽（PIINP）水平明显低于乙组（P<0.05）;3级骨质疏松患者比例甲组低于乙组（P<0.05）,骨密度水平甲组高于乙组（P<0.05）;VAS甲组低于乙组（P<0.05）。结论 复方骨肽注射液治疗胸腰椎骨质疏松性骨折患者,可有效改善其骨代谢、骨密度水平,缓解疼痛程度,促进腰椎功能恢复。     

Osteogenic potential of punica granatum through matrix mineralization,cell cycle progression and runx2 gene expression in primary rat osteoblasts

Background

Osteoporosis is one of the prevalent diseases in ageing populations. Due to side effects of many chemotherapeutic agents, there is always a need to search for herbal products to treat the disorder. Punica granatum (PG) represent a potent fruit-bearing medicinal herb which exerted valuable anti-osteoporotic activities. The present study was carried out to validate the in vitro osteogenic effects of the PG seed extract in primary calvarial osteoblast cultures harvested from neonatal rats.

Methods

The ethanolic extract of PG was subjected to evaluate cell proliferation, regeneration, mineralization and formation of collagen matrix using MTT, alkaline phosphatase, Alizarin Red-S staining and Sirius Red dye, respectively. Cell cycle progression and osteogenic gene Runx2 expression were carried out by flow cytometry and real time PCR, respectively.

Results

Exposure of different concentrations (10–100 μg/ml) of the extract on osteoblastic cells showed characteristic morphological changes and increment in cell number. A significant growth in cell proliferation, ALP activity, collagen contents and matrix mineralization of osteoblasts in a dose dependent manner (p < 0.05), suggested that PG has a stimulatory effect on osteoblastic bone formation or potential activity against osteoporosis. In addition, PG extract also enhanced DNA content in S phase of cell cycle and Runx2 gene expression level in osteoblasts.

Conclusion

The data clearly indicated that PG promoting bone cell proliferation and differentiation in primary osteoblasts might be due to elevating the osteogenic gene Runx2 expression. The present study provides an evidence for PG could be a promising herbal medicinal candidate that able to develop drugs for osteoporosis.     

巴戟天丸防治D-半乳糖损伤成骨细胞骨丢失的作用及机制研究

目的 研究巴戟天丸防治D-半乳糖（D-gal）损伤成骨细胞骨丢失的作用及机制。方法 采用新生24 h Wistar大鼠提取的原代成骨细胞,利用D-gal对细胞进行干预,并给予巴戟天丸提取物行药物治疗。分别采用MTT法和碱性磷酸酶试剂盒评价细胞的增殖和分化水平;采用DCFH-DA荧光探针对成骨细胞内活性氧（ROS）水平进行测定。采用Western blotting法对磷酸化蛋白激酶B(p-AKT)、蛋白激酶B(AKT)、血红素氧合酶1(HO-1)、醌NADPH脱氢酶1(NQO1)等氧化相关蛋白的表达进行检测,并采用免疫荧光法测定细胞核因子E2相关因子2(Nrf2)的核内表达水平。结果 巴戟天丸能显著提高D-gal干预细胞的增殖水平和ALP活性,并显著降低细胞内ROS水平。巴戟天丸能够显著促进细胞AKT蛋白的磷酸化,提高HO-1、NQO1的表达水平,进而激活PI3K/AKT信号通路。此外,巴戟天丸提取物还可显著促进成骨细胞核内Nrf2的表达,激活Nrf2信号通路,促进骨形成。结论 本研究首次明确了巴戟天丸可防治D-半乳糖损伤引起的成骨细胞骨丢失,其作用机制可能与调控PI3K/AKT和Nrf...     

Anti-osteoporotic activity of puerarin 6″-O-xyloside on ovariectomized mice and its potential mechanism

Context: Osteoporosis is one of the most common bone diseases, and radix of Pueraria lobata (Willd.) Ohwi possesses an obvious therapeutical effect on postmenopausal osteoporosis.

Objective: This study investigates the anti-osteoporotic activity of the puerarin 6″-O-xyloside (PXY) on ovariectomized mice and its related mechanism.

Materials and methods: Osteoporotic mice model was established by ovariectomy (OVX). A total of 50 mice were divided into five groups (n?=?10): sham, OVX group, PXY treatment groups (20, 40, and 60?mg/kg/d, i.p.). After 12 weeks’ treatment, body weights were recorded. Then, mice were sacrificed, and serum samples were collected to determine the blood calcium, blood phosphorus, alkaline phosphatase (ALP), and osteoprotegerin (OPG) concentrations and uterine index was assayed. The thigh-bones of mice were collected to evaluate histopathological changes. In the in vitro experiment, the effect of PXY on osteoblasts’ proliferation was evaluated and western blotting was performed to determine expressions of OPG and the receptor activators of NF-κB ligand (RANKL), as well as the ratio of OPG/RANKL.

Results: PXY (40 and 60?mg/kg/d, i.p.) obviously decreased body weights and increased uterine index of OVX (p?<?0.05), and improved osteoporotic syndromes of OVX mice; PXY also significantly increased the concentrations of blood calcium, blood phosphorus, ALP, and OPG of OVX mice (p?<?0.05); moreover, PXY obviously up-regulated the ratio of OPG/RANKL (p?<?0.05).

Conclusion: Our results demonstrated that the puerarin 6″-O-xyloside possesses significant anti-osteoporotic activity on ovariectomy mice.     

刺老苞根皮总提物对去势大鼠骨质疏松的影响

目的 研究刺老苞Araliae Echinocaulis Radicis et Cortex根皮总提取物对去势雌性大鼠骨质疏松症的影响。方法 75只SD雌性大鼠随机分成对照组、假手术组、模型组、仙灵骨葆胶囊组和刺老苞根皮总提取物组,每组15只。经去势手术2周后,仙灵骨葆胶囊组、刺老苞根皮总提取物组ig相应药物悬液(20 mg/kg),每天1次,连续12周。观察大鼠给药前后体质量变化;试剂盒法检测血清总胆固醇(TC)、高密度脂蛋白-胆固醇(HDL-C)、低密度脂蛋白-胆固醇(LDL-C)、碱性磷酸酶(ALP)水平;取右侧股骨检测骨密度、骨微量元素和羟脯氨酸(Hyp)水平;取左侧股骨进行骨力学测定。结果 与对照组比较,模型组大鼠血清TC、LDL-C水平均显著升高(P<0.01),血清HDL-C、ALP、骨微量元素(钙、磷、镁、锰)、Hyp水平,骨密度、骨力学指标均显著下降(P<0.01);与模型组比较,刺老苞根皮总提取物组与仙灵骨葆胶囊组TC、LDL-C水平均显著降低(P<0.05),血清HDL-C、ALP、骨微量元素(钙、磷、镁、锰)、Hyp水平,骨密度、骨力学指标均显著升高(P<0.05)。结论 刺老苞根皮总提取物有效改善去势雌性大鼠骨质疏松症的发生。     

The effect of antibiotics on bone healing: current evidence

Introduction: Bone healing is a complex cascade of events that involves the proliferation and differentiation of osteoblastic cells under the influence of signals from growth factors, cytokines and mechanical loading. Several medications have been found to interact negatively with this process including cytostatics, NSAIDs and corticosteroids; however, the effect of antibiotics on bone repair processes remains obscure.

Areas covered: The authors offer a comprehensive review of the existing literature on the in vivo and in vitro effect of antibiotics on bone, bone cells and fracture healing. The authors describe the pharmacokinetic characteristics of antibiotics after parenteral administration as well as their levels when applied locally together with a delivery vehicle.

Expert opinion: The available experimental data and clinical evidence are rather limited to allow safe conclusions. In vitro studies indicate that high doses administered after systemic administration have little or no direct effect on bone cells. Further studies are desirable to define the effect of higher or prolonged concentrations on bone biology and especially that of high concentrations released by locally implanted antibiotic-delivery systems, that is, bone cement, spacers and beads.     

Cistanche deserticola extract increases bone formation in osteoblasts

Objectives We investigated the effect of Cistanche deserticola Ma. (CD) on bone formation by cultured osteoblasts. Methods The mineralized nodule formation assay was used to examine the in‐vitro effects of CD on bone formation. Alkaline phosphatase (ALP), bone morphogenetic proteins (BMP)‐2 and osteopontin (OPN) mRNA expression was analysed by quantitative real‐time polymerase chain reaction. The mechanism of action of CD extract was investigated using Western blotting. The in‐vivo anti‐osteoporotic effect of CD extract was assessed in ovariectomized mice. Key findings CD extract had no effect on the proliferation, migration or wound healing of cultured osteoblasts, but increased ALP, BMP‐2 and OPN mRNA and bone mineralization. Mitogen‐activated protein kinase (MAPK) or nuclear factor (NF)‐κB inhibitors reduced CD extract‐induced bone formation and ALP, BMP‐2 and OPN expression. However, CD extract did not affect osteoclastogenesis. In addition, CD extract prevented the bone loss induced by ovariectomy in vivo. Conclusions CD may be a novel bone formation agent for the treatment of osteoporosis.     

女贞子及其活性成分抗骨质疏松症的研究进展

女贞子提取物及其活性成分齐墩果酸、熊果酸、红景天苷等对去卵巢大小鼠,雌性老龄大鼠均具有抗骨质疏松作用,能抗糖皮质激素引起的或糖尿病并发的骨质疏松以及胶原性关节炎大鼠的骨质破坏。它们的作用机制可能是通过(1)促进成骨细胞分化,抑制基质金属蛋白酶表达,阻滞破骨细胞激活;(2)促进活性维生素D₃生物合成以及维生素D受体和钙结合蛋白表达,促进肠钙吸收,抑制尿钙排泄,提高骨密度,产生抗骨质疏松的防治作用。综述了女贞子及其活性成分抗骨质疏松作用的研究进展,为新药研发提供依据。     

Antiosteoporotic activity of Du–Zhong–Wan water extract in ovariectomized rats

Context Eucommiae Cortex and Radix Dipsaci, occurring in a ratio of 1:1 in Du-Zhong-Wan (DZW), a Chinese herbal medicine, is available as a water extract followed by ethanol precipitation for the treatment of osteoporosis, fractures and menopausal syndrome.

Objective This study investigates the protective effects of DZW in ovariectomy (OVX)-induced bone loss in a rat osteopenia model.

Materials and methods Sixty Sprague–Dawley rats were randomly divided into the sham-operated group (SHAM) and five OVX subgroups: OVX with vehicle (OVX), 17β-estradiol (E2) and with three graded doses of DZW. Daily oral administration of the different samples started on the fifth week and lasted for 12 weeks, respectively. The body weight, uterus wet weight, serum biochemical parameters, bone mineral density (BMD), bone biomechanical properties, bone microarchitecture and immunohistochemistry were examined.

Results Compared with the SHAM group, the DZW treatment significantly reversed the osteoporotic changes in OVX rats. The DZW-H group showed that serum tartrate-resistant acid phosphatase 5b (TRACP-5b) levels reduced by 152.25% (p?<?0.01) and osteocalein (OCN) levels dose dependently increased by 118.43% (p?<?0.01) as compared with the OVX group. Compared with the OVX group, the DZW at different three dosages of DZW evidently increased the right femur BMD by 112.43, 114.56 and 116.45%, and dramatically promoted bone quality and bone strength (p?<?0.05). Further, immunohistochemical evaluation also showed that DZW administration increased ER expression in uteri (p?<?0.01).

Conclusions DZW exhibits an anti-osteoporotic effect, probably mediated via phyto-estrogenic effects. It might be a potential herbal alternative for the management of postmenopausal osteoporosis.