中华骨质疏松和骨矿盐疾病杂志
中華骨質疏鬆和骨礦鹽疾病雜誌
중화골질소송화골광염질병잡지
CHINESE JOURNAL OF OSTEOPOROSIS AND BONE MINERAL RESEARCH
2014年
2期
155-160
,共6页
姚红%郗光霞%郭敏%杨娜
姚紅%郗光霞%郭敏%楊娜
요홍%치광하%곽민%양나
胰高血糖素样肽-1受体%糖尿病%骨小梁%骨微结构
胰高血糖素樣肽-1受體%糖尿病%骨小樑%骨微結構
이고혈당소양태-1수체%당뇨병%골소량%골미결구
glucagon-like peptide-1 receptor%diabetes%trabecular%bone microstructure
目的:观察2型糖尿病大鼠股骨颈骨细胞表达胰高血糖素样肽-1受体( GLP-1R)阳性细胞百分数的变化,探讨骨组织GLP-1R变化对骨微结构的影响。方法雄性Wistar大鼠60只,随机分为实验组(30只)和对照组(30只),实验组采用高糖高脂饲料喂养至12周时加小剂量链脲佐菌素腹腔注射诱导糖尿病模型,对照组采用普通饲料喂养。分别于造模成功时和成模后第12周,处死10只大鼠作为糖尿病0周组(DM0w组, n=10)和糖尿病12周组(DM12w组, n=10),对照组分别于同期各处死10只大鼠作为正常对照(NGT0w组, n=10; NGT12w组, n=10)。经腹主动脉采血测定空腹血糖(FBG)、胆固醇(TC)、三酰甘油(TG)。取近端股骨颈,制备脱钙和不脱钙骨切片,备免疫组化检测GLP-1R阳性的骨细胞,采用Simple软件分析骨小梁形态计量学指标:骨小梁占骨髓腔体积百分比( BV/TV )、骨小梁厚度( Tb.Th )、骨小梁数目(Tb.N)。采用单因素方差分析比较各组大鼠股骨颈表达 GLP-1R阳性的骨细胞百分数, BV/TV、 Tb.Th、Tb.N的变化,采用Pearson行相关分析。结果与同期对照组相比, DM0w组、 DM12w组大鼠FBG、 TC、 TG升高(均P<0.05);与同期对照组相比, DM0w组、 DM12w组大鼠股骨颈表达GLP-1R阳性骨细胞百分数和BV/TV、 Tb.Th均减少(均P<0.05);与DM0组相比, DM12组大鼠股骨颈表达GLP-1R阳性的骨细胞百分数、 BV/TV、 Tb.Th、 Tb.N均减少(均P<0.05); Pearson相关分析显示大鼠股骨颈GLP-1R阳性骨细胞百分数与股骨颈BV/TV、 Tb.Th、 Tb.N均呈正相关,相关系数分别为r=0.803, P<0.05;r=0.545, P<0.05;r=0.771, P<0.05。结论糖尿病大鼠股骨颈骨细胞GLP-1 R的表达减少,同时BV/TV、 Tb.N减少, Tb.Th变薄,骨细胞GLP-1R的表达可能是影响2型糖尿病骨微结构的因素之一。
目的:觀察2型糖尿病大鼠股骨頸骨細胞錶達胰高血糖素樣肽-1受體( GLP-1R)暘性細胞百分數的變化,探討骨組織GLP-1R變化對骨微結構的影響。方法雄性Wistar大鼠60隻,隨機分為實驗組(30隻)和對照組(30隻),實驗組採用高糖高脂飼料餵養至12週時加小劑量鏈脲佐菌素腹腔註射誘導糖尿病模型,對照組採用普通飼料餵養。分彆于造模成功時和成模後第12週,處死10隻大鼠作為糖尿病0週組(DM0w組, n=10)和糖尿病12週組(DM12w組, n=10),對照組分彆于同期各處死10隻大鼠作為正常對照(NGT0w組, n=10; NGT12w組, n=10)。經腹主動脈採血測定空腹血糖(FBG)、膽固醇(TC)、三酰甘油(TG)。取近耑股骨頸,製備脫鈣和不脫鈣骨切片,備免疫組化檢測GLP-1R暘性的骨細胞,採用Simple軟件分析骨小樑形態計量學指標:骨小樑佔骨髓腔體積百分比( BV/TV )、骨小樑厚度( Tb.Th )、骨小樑數目(Tb.N)。採用單因素方差分析比較各組大鼠股骨頸錶達 GLP-1R暘性的骨細胞百分數, BV/TV、 Tb.Th、Tb.N的變化,採用Pearson行相關分析。結果與同期對照組相比, DM0w組、 DM12w組大鼠FBG、 TC、 TG升高(均P<0.05);與同期對照組相比, DM0w組、 DM12w組大鼠股骨頸錶達GLP-1R暘性骨細胞百分數和BV/TV、 Tb.Th均減少(均P<0.05);與DM0組相比, DM12組大鼠股骨頸錶達GLP-1R暘性的骨細胞百分數、 BV/TV、 Tb.Th、 Tb.N均減少(均P<0.05); Pearson相關分析顯示大鼠股骨頸GLP-1R暘性骨細胞百分數與股骨頸BV/TV、 Tb.Th、 Tb.N均呈正相關,相關繫數分彆為r=0.803, P<0.05;r=0.545, P<0.05;r=0.771, P<0.05。結論糖尿病大鼠股骨頸骨細胞GLP-1 R的錶達減少,同時BV/TV、 Tb.N減少, Tb.Th變薄,骨細胞GLP-1R的錶達可能是影響2型糖尿病骨微結構的因素之一。
목적:관찰2형당뇨병대서고골경골세포표체이고혈당소양태-1수체( GLP-1R)양성세포백분수적변화,탐토골조직GLP-1R변화대골미결구적영향。방법웅성Wistar대서60지,수궤분위실험조(30지)화대조조(30지),실험조채용고당고지사료위양지12주시가소제량련뇨좌균소복강주사유도당뇨병모형,대조조채용보통사료위양。분별우조모성공시화성모후제12주,처사10지대서작위당뇨병0주조(DM0w조, n=10)화당뇨병12주조(DM12w조, n=10),대조조분별우동기각처사10지대서작위정상대조(NGT0w조, n=10; NGT12w조, n=10)。경복주동맥채혈측정공복혈당(FBG)、담고순(TC)、삼선감유(TG)。취근단고골경,제비탈개화불탈개골절편,비면역조화검측GLP-1R양성적골세포,채용Simple연건분석골소량형태계량학지표:골소량점골수강체적백분비( BV/TV )、골소량후도( Tb.Th )、골소량수목(Tb.N)。채용단인소방차분석비교각조대서고골경표체 GLP-1R양성적골세포백분수, BV/TV、 Tb.Th、Tb.N적변화,채용Pearson행상관분석。결과여동기대조조상비, DM0w조、 DM12w조대서FBG、 TC、 TG승고(균P<0.05);여동기대조조상비, DM0w조、 DM12w조대서고골경표체GLP-1R양성골세포백분수화BV/TV、 Tb.Th균감소(균P<0.05);여DM0조상비, DM12조대서고골경표체GLP-1R양성적골세포백분수、 BV/TV、 Tb.Th、 Tb.N균감소(균P<0.05); Pearson상관분석현시대서고골경GLP-1R양성골세포백분수여고골경BV/TV、 Tb.Th、 Tb.N균정정상관,상관계수분별위r=0.803, P<0.05;r=0.545, P<0.05;r=0.771, P<0.05。결론당뇨병대서고골경골세포GLP-1 R적표체감소,동시BV/TV、 Tb.N감소, Tb.Th변박,골세포GLP-1R적표체가능시영향2형당뇨병골미결구적인소지일。
Objective To observed the changes of glucagon-like peptide-1 receptor (GLP-1R) expressed on the bone cells of femoral neck in type 2 diabetic rats , and to investigate the effects of this changes on the bone microstructure . Methods 60 Male Wistar rats were divided into experimental group ( 30 ) and control group ( 30 ) , the experimental group were fed with high-sugar and high-fat diet, then a small dose of streptozotocin intraperitoneal was injected in 12 weeks, while the control group were fed with normal diet .Each groups were sacrificed , then the proximal femoral neck were cut off when successful modeling as DM0 group (n=10) and DM12 group (n=10) respectively after 12 weeks.Fasting glucose ( FBG) , cholesterol ( TC) and triglyceride ( TG) were assayed in specimens from abdominal aortic .Prep-aration of slices of bone tissue with decalcification and without , to observe GLP-1R-positive bone cells chemistry .Trabec-ular morphology were measured with simple software:volume percentage of trabecular account marrow cavity volume ( BV/TV) , trabecular thickness ( Tb.Th ) , trabecular bone number ( Tb.N ) .One-way ANOVA were used to compare the differences between these indicators .Pearson correlation analysis were used to explore the correlation between them .Re-sults (1) Compared with the control group in the same period , DM0w and DM12w groups'FBG, TC, TG, were in-creased ( P<0.05 ) .( 2 ) Compared with the control group in the same period , the percentage numbers of bone cells which express GLP-1R were reduced in DM0w and DM12w groups (P<0.05), BV/TV and Tb.Th were reduced (P<0.05).(3) Compared with DM0w group, the percentage numbers of GLP-1R positive bone cell on femoral neck , and BV/TV, Tb.Th, Tb.N of DM12w groups were reduced (P<0.05).(4) Pearson correlation analysis between the per-centage of GLP-1R positive bone cells and BV/TV, Tb.Th, Tb.N showed a positive correlation, correlation coefficients were (r=0.803, P<0.05;r=0.545, P<0.05; r=0.771, P<0.05).Conclusion The expression of GLP-1R on the bone cells were decreased, while BV/TV, Tb.N were reduced, and Tb.Th were thinning in diabetic rats.So the ex-pression of GLP-1R on bone cells may be one of the factors which affect bone microstructure in type 2 diabetes.