摘要
目的探讨D-半乳糖是否会引起骨质疏松,与去卵巢致骨质疏松有何异同,去卵巢后再加上D-半乳糖是否会加速加重骨质疏松的进展,补充雌激素是否有预防作用。方法 SPF级小鼠60只,随机分为假手术组、D-半乳糖组、去卵巢组、去卵巢+D-半乳糖组、去卵巢+D-半乳糖+己烯雌酚组和D-半乳糖+己烯雌酚组。实验70 d后,取右胫骨进行不脱钙骨组织切片及骨形态学计量学观察与评价。结果与假手术组比较,去卵巢组%Tb.Ar、Tb.Th、Tb.N明显降低(P<0.01),Tb.Sp明显升高(P<0.05),反映骨吸收指标的Oc.Pm、Oc.No.、%Oc.S、Oc.N/mm明显升高(P<0.01),反映骨形成指标的%L.Pm、MAR、BFR/TV、BFR/BV、BFR/BS明显降低(P<0.01)。D-半乳糖组反映骨吸收的4个指标明显升高(P<0.05),反映骨形成的4个指标明显降低(P<0.05)。去卵巢+D-半乳糖组也有明显的骨质疏松的表现,但各指标与去卵巢组相比,差异没有显著性,与D-半乳糖组相比,各指标差异也没有显著性。雌激素对D-半乳糖和去卵巢联合D-半乳糖导致的骨质疏松相关指标均有明显的对抗作用。结论去卵巢、D-半乳糖、去卵巢联合D-半乳糖均能建立小鼠骨质疏松模型,雌激素能有效防止D-半乳糖和去卵巢联合D-半乳糖致骨量丢失。
Aim To investigate whether D-galactose cause osteoporosis and the difference compared with the osteoporosis induced by ovariectomy, and to deter-mine whether ovariectomy coupled with D-galactose ac-celerated the progress of osteoporosis and whether es-trogen had a preventive effect on these osteoporosis models. Methods Sixty SPF mice were randomly divided into six groups , namely sham-operated group, D-galactose group, OVX group, OVX ＋ D-galactose group, OVX ＋ D-galactose ＋ diethylstilbestrol group and D-galactose ＋ diethylstilbestrol group. Seventy days later, the right tibia was processed with undecal-cified sections for bone histomorphometric analysis. Results Compared with the sham-operated group, %Tb. Ar, Tb. Th and Tb. N decrease by 50. 4%, 25. 4%, 50. 9% （ P 〈0.01 ） respectively, Tb. Sp in-creased by 169. 4% （P 〈0.05）, Oc. pm, Oc. No. ,%Oc. S, Oc. N/mm which reflected bone absorption significantly increased （ P 〈 0.01 ） , and % L. Pm, MAR, BFR/TV, BFR/BV, BFR/BS which reflected bone formation significantly decreased （ P 〈0.01 ） in OVX group. %Tb. Ar decreased by 30. 4% in D-ga-lactose group, but there was no statistically significant difference. However, the four parameters reflected the bone absorption in D-galactose group increased signifi-cantly （ P〈0.05 ） , while the four parameters reflected bone formation decreased significantly （ P 〈 0.05 ） . OVX＋D-galactose group has obvious performance of osteoporosis, but there was no significant difference compared to OVX group, nor to D-galactose group. Estrogen had significant preventive effect on related pa-rameters of osteoporosis induced by D-galactose and o-variectomy coupled with D-galactose. ConclusionsOsteoporosis model of mice can be established by OVX, D-galactose and OVX ＋D-galactose. Estrogen can effectively prevent bone loss induced by D-galac-tose and OVX＋ D-galactose.
出处
《中国药理学通报》
CAS
CSCD
北大核心
2014年第9期1281-1287,共7页
Chinese Pharmacological Bulletin
基金
国家自然科学基金资助项目(No 81273518)
