实用医学杂志
實用醫學雜誌
실용의학잡지
THE JOURNAL OF PRACTICAL MEDICINE
2014年
11期
1699-1701
,共3页
吴美芬%陈晓铭%武革%郑坤杰%潘海燕%方烁
吳美芬%陳曉銘%武革%鄭坤傑%潘海燕%方爍
오미분%진효명%무혁%정곤걸%반해연%방삭
糖尿病, 2型%大鼠%PDX-1%GLP-1%利拉鲁肽
糖尿病, 2型%大鼠%PDX-1%GLP-1%利拉魯肽
당뇨병, 2형%대서%PDX-1%GLP-1%리랍로태
Diabetes mellitus,type 2%Pancreatic duodenal homeobox-1%Glucagon-like peptide-1%Liraglutide
目的:观察胰高血糖素样肽-1(glucagon-like peptide-1, GLP-1)类似物利拉鲁肽对2型糖尿病大鼠胰腺十二指肠同源盒-1(pancreatic duodenal homeobox-1, PDX-1)基因表达水平的影响。方法:将60只雄性SD大鼠平均分为3组:正常对照组、糖尿病未治疗组及GLP-1组,正常对照组给予普通饲料喂养,糖尿病未治疗组与GLP-1组给予高脂饲料喂养,于第8周末以链脲佐菌素(Streptozotocin, STZ)30 mg/(kg·bw)腹腔注射高脂饲料喂养组,成模后GLP-1组给予利拉鲁肽200μg/kg皮下注射,每日2次共持续8周。其余2组予等量的生理盐水皮下注射。以实时荧光定量逆转录-聚合酶链反应(Real-Time fluorescent quantitative reverse transcription-polymerase chain reaction, Real-Time RT-PCR)法检测大鼠胰腺胰岛细胞PDX-1基因的表达。结果:与正常对照组比较,GLP-1组及未治疗组PDX-1 mRNA的表达量明显减低(P<0.001),GLP-1治疗后2型糖尿病大鼠胰腺PDX-1 mRNA的表达量可明显增高(P<0.001)。结论:GLP-1可上调2型糖尿病大鼠胰岛β细胞PDX-1基因的表达。
目的:觀察胰高血糖素樣肽-1(glucagon-like peptide-1, GLP-1)類似物利拉魯肽對2型糖尿病大鼠胰腺十二指腸同源盒-1(pancreatic duodenal homeobox-1, PDX-1)基因錶達水平的影響。方法:將60隻雄性SD大鼠平均分為3組:正常對照組、糖尿病未治療組及GLP-1組,正常對照組給予普通飼料餵養,糖尿病未治療組與GLP-1組給予高脂飼料餵養,于第8週末以鏈脲佐菌素(Streptozotocin, STZ)30 mg/(kg·bw)腹腔註射高脂飼料餵養組,成模後GLP-1組給予利拉魯肽200μg/kg皮下註射,每日2次共持續8週。其餘2組予等量的生理鹽水皮下註射。以實時熒光定量逆轉錄-聚閤酶鏈反應(Real-Time fluorescent quantitative reverse transcription-polymerase chain reaction, Real-Time RT-PCR)法檢測大鼠胰腺胰島細胞PDX-1基因的錶達。結果:與正常對照組比較,GLP-1組及未治療組PDX-1 mRNA的錶達量明顯減低(P<0.001),GLP-1治療後2型糖尿病大鼠胰腺PDX-1 mRNA的錶達量可明顯增高(P<0.001)。結論:GLP-1可上調2型糖尿病大鼠胰島β細胞PDX-1基因的錶達。
목적:관찰이고혈당소양태-1(glucagon-like peptide-1, GLP-1)유사물리랍로태대2형당뇨병대서이선십이지장동원합-1(pancreatic duodenal homeobox-1, PDX-1)기인표체수평적영향。방법:장60지웅성SD대서평균분위3조:정상대조조、당뇨병미치료조급GLP-1조,정상대조조급여보통사료위양,당뇨병미치료조여GLP-1조급여고지사료위양,우제8주말이련뇨좌균소(Streptozotocin, STZ)30 mg/(kg·bw)복강주사고지사료위양조,성모후GLP-1조급여리랍로태200μg/kg피하주사,매일2차공지속8주。기여2조여등량적생리염수피하주사。이실시형광정량역전록-취합매련반응(Real-Time fluorescent quantitative reverse transcription-polymerase chain reaction, Real-Time RT-PCR)법검측대서이선이도세포PDX-1기인적표체。결과:여정상대조조비교,GLP-1조급미치료조PDX-1 mRNA적표체량명현감저(P<0.001),GLP-1치료후2형당뇨병대서이선PDX-1 mRNA적표체량가명현증고(P<0.001)。결론:GLP-1가상조2형당뇨병대서이도β세포PDX-1기인적표체。
Objective To observe the effect of liraglutide, an analogue of glucagon like peptide-1 (GLP-1), on the expression of PDX-1 gene in the islet beta cells of type 2 diabetes rats. Methods Sixty male SD rats were divided into 3 groups:normal control group, diabetic model group and GLP-1 group. Normal control group was given normal diet and diabetic model group and GLP-1 group were given high fat diet. After the eighth weekend, the high fat diet group was intraperitoneally injected with streptozotocin (STZ) 30 mg/(kg·bw), and the GLP-1 group was subcutaneously injected with liraglutide 200μg/kg with 2 times per day for 8 weeks. The other groups were treated with normal saline by subcutaneous injection. Real-time fluorescent quantitative reverse transcription polymerase chain reaction (Real-Time RT-PCR) was used to detect the expression of PDX-1 gene in rat pancreatic islet cells. Results The expressions of PDX-1 mRNA in the GLP-1 group and untreated group were significantly lower (P <0.001) than that in the normal control group, but significantly higher than that after GLP-1treatment (P < 0.001). Conclusion GLP-1 can upregulate the expression of PDX-1 gene in the islet beta cells of type 2 diabetes rats.