西南国防医药
西南國防醫藥
서남국방의약
MEDICAL JOURNAL OF NATIONAL DEFENDING FORCES IN SOUTHWEST CHINA
2014年
8期
822-824
,共3页
束缚应激%肝脏%过氧化物酶体增殖物激活型受体β/δ
束縳應激%肝髒%過氧化物酶體增殖物激活型受體β/δ
속박응격%간장%과양화물매체증식물격활형수체β/δ
restraint stress%liver%peroxisome proliferator-activated receptor β/δ(PPARβ/δ)
目的:观察束缚应激后大鼠血甘油三脂(TG)、血糖和肝脏过氧化物酶体增殖物激活型受体(PPAR)β/δ mRNA和蛋白的变化,初步探讨应激对糖脂代谢的影响及发生机制。方法健康雄性 Wistar 大鼠,随机分为正常对照组(C)、束缚1 w组(R1)、束缚2 w 组(R2)和束缚4 w 组(R4),分别不给予应激及给予束缚应激1、2和4 w。实验结束后取大鼠血清及肝组织,全自动生化仪测定血 TG 和血糖水平,分别用 RT-PCR 和 Western blot 法检测肝脏 PPARβ/δ的 mRNA 和蛋白表达水平。结果 R1、R2、R4组大鼠血清 TG 分别为(0.97±0.28)、(0.88±0.16)、(0.94±0.23)mmol/ L,均明显高于 C 组的(0.59±0.09 mmol/ L(P ﹤0.01);血糖分别为(6.25±0.69)、(6.30±1.10)、(6.12±0.85)mmol/ L,均明显高于 C 组的(5.18±0.54) mmol/ L)(P ﹤0.01)。与 C 组相比,R1、R2、R4组肝脏 PPARβ/δ mRNA 和蛋白表达均降低(P ﹤0.05或 P ﹤0.01)。结论束缚应激后,大鼠血清 TG、血糖水平升高,这种变化可能与肝脏 PPARβ/δ表达降低有关。
目的:觀察束縳應激後大鼠血甘油三脂(TG)、血糖和肝髒過氧化物酶體增殖物激活型受體(PPAR)β/δ mRNA和蛋白的變化,初步探討應激對糖脂代謝的影響及髮生機製。方法健康雄性 Wistar 大鼠,隨機分為正常對照組(C)、束縳1 w組(R1)、束縳2 w 組(R2)和束縳4 w 組(R4),分彆不給予應激及給予束縳應激1、2和4 w。實驗結束後取大鼠血清及肝組織,全自動生化儀測定血 TG 和血糖水平,分彆用 RT-PCR 和 Western blot 法檢測肝髒 PPARβ/δ的 mRNA 和蛋白錶達水平。結果 R1、R2、R4組大鼠血清 TG 分彆為(0.97±0.28)、(0.88±0.16)、(0.94±0.23)mmol/ L,均明顯高于 C 組的(0.59±0.09 mmol/ L(P ﹤0.01);血糖分彆為(6.25±0.69)、(6.30±1.10)、(6.12±0.85)mmol/ L,均明顯高于 C 組的(5.18±0.54) mmol/ L)(P ﹤0.01)。與 C 組相比,R1、R2、R4組肝髒 PPARβ/δ mRNA 和蛋白錶達均降低(P ﹤0.05或 P ﹤0.01)。結論束縳應激後,大鼠血清 TG、血糖水平升高,這種變化可能與肝髒 PPARβ/δ錶達降低有關。
목적:관찰속박응격후대서혈감유삼지(TG)、혈당화간장과양화물매체증식물격활형수체(PPAR)β/δ mRNA화단백적변화,초보탐토응격대당지대사적영향급발생궤제。방법건강웅성 Wistar 대서,수궤분위정상대조조(C)、속박1 w조(R1)、속박2 w 조(R2)화속박4 w 조(R4),분별불급여응격급급여속박응격1、2화4 w。실험결속후취대서혈청급간조직,전자동생화의측정혈 TG 화혈당수평,분별용 RT-PCR 화 Western blot 법검측간장 PPARβ/δ적 mRNA 화단백표체수평。결과 R1、R2、R4조대서혈청 TG 분별위(0.97±0.28)、(0.88±0.16)、(0.94±0.23)mmol/ L,균명현고우 C 조적(0.59±0.09 mmol/ L(P ﹤0.01);혈당분별위(6.25±0.69)、(6.30±1.10)、(6.12±0.85)mmol/ L,균명현고우 C 조적(5.18±0.54) mmol/ L)(P ﹤0.01)。여 C 조상비,R1、R2、R4조간장 PPARβ/δ mRNA 화단백표체균강저(P ﹤0.05혹 P ﹤0.01)。결론속박응격후,대서혈청 TG、혈당수평승고,저충변화가능여간장 PPARβ/δ표체강저유관。
Objective To explore the effect of restraint stress on serum triglyeride( TG),glucose and the expressions of peroxisome proliferator-activated receptor β/ δ(PPARβ/ δ)mRNA and protein in rat livers. Methods Wistar rats were divided into 4 groups:control group C(with no restraint stress),group R1(under restraint stress for 1 week),group R2(under restraint stress for 2 week)and group R4(under restraint stress for 4 week);the levels of serum triglyeride(TG)and glucose were detected by automatic biochemical analyzer and the expressions of PPARβ/ δ mRNA and protein in the liver were evaluated by reverse transcription polymerase chain reaction(RT-PCR)and Western blot. Results The levels of serum TG of rats in group R1,group R2 and group R4 were(0. 97 ± 0. 28)mmol/ L,(0. 88 ± 0. 16)mmol/ L and(0. 94 ± 0. 23)mmol/ L,all much higher than that in group C(0. 59 ± 0. 09) mmol/ L(P ﹤ 0. 01);the levels glucose in the 3 groups were(6. 25 ± 0. 69)mmol/ L,(6. 30 ± 1. 10)mmol/ L and(6. 12 ± 0. 85)mmol/ L,all much higher than that in group C(5. 18 ± 0. 54)mmol/ L( P ﹤ 0. 01);the expressions of PPARβ/ δ mRNA and protein in rat livers all decreased(P ﹤ 0. 05 or P ﹤ 0. 01). Conclusions There exists a certain correlation between the increase of the levels of serum TG and glucose and the decrease of the expression of PPARβ/ δ in rats under restraint stress.