目的研究红车轴草总黄酮对高糖诱导的大鼠胰岛β细胞损伤的影响,及其潜在的分子机制。方法本实验分为对照组,模型组,低、中、高剂量实验组,miR-NC组,miR-99a-3p组,anti-miR-NC,anti-miR-99a-3p组,模型+miR-NC组,模型+miR-99a-3p组,模型+...目的研究红车轴草总黄酮对高糖诱导的大鼠胰岛β细胞损伤的影响,及其潜在的分子机制。方法本实验分为对照组,模型组,低、中、高剂量实验组,miR-NC组,miR-99a-3p组,anti-miR-NC,anti-miR-99a-3p组,模型+miR-NC组,模型+miR-99a-3p组,模型+si-NC组,模型+si-CD36组,高剂量实验+anti-miR-NC组和高剂量实验+anti-miR-99a-3p组。对照组给予5.5 mmol·L^(-1)葡萄糖处置;模型组给予25 mmol·L^(-1)葡萄糖处置;低、中、高剂量实验组分别给予12.5,25.0和50.0 mg·L^(-1)红车轴草总黄酮和25 mmol·L^(-1)葡萄糖处置;miR-NC组、miR-99a-3p组、anti-miR-NC组、anti-miR-99a-3p组分别转染miR-NC、miR-99a-3p、anti-miR-NC、anti-miR-99a-3p;模型+miR-NC组、模型+miR-99a-3p组、模型+si-NC组、模型+si-CD36组均给予25 mmol·L^(-1)葡萄糖处理,并分别转染miR-NC、miR-99a-3p、si-NC、si-CD36;高剂量实验+anti-miR-NC组、高剂量实验+anti-miR-99a-3p组均给予50.0 mg·L^(-1)红车轴草总黄酮+25 mmol·L^(-1)葡萄糖,并分别转染anti-miR-NC或anti-miR-99a-3p。用流式细胞术测定细胞凋亡率,用定量实时聚合酶链反应检测细胞中miR-99a-3p和CD36 mRNA的表达水平。结果模型组INS-1细胞中CD36 mRNA(2.74±0.27 vs 1.01±0.08)和细胞凋亡率[(27.63±2.71)%vs(5.69±0.58)%]均较对照组显著升高,miR-99a-3p(0.38±0.03 vs 1.00±0.09)较对照组显著降低,差异均有统计学意义(均P<0.05);与模型组比较,低、中、高剂量实验组的上述结果相反。模型+miR-99a-3p组的细胞凋亡率[(12.48±1.19)%vs(26.84±2.41)%]较模型+miR-NC组显著降低,miR-99a-3p表达量(0.79±0.07 vs 0.34±0.03)较模型+miR-NC组显著升高,差异均有统计学意义(均P<0.05)。模型+si-CD36组INS-1细胞中CD36 mRNA(1.35±0.12 vs 2.81±0.26)及细胞凋亡率[(13.54±1.32)%vs(25.87±2.52)%]均较模型+si-NC组显著降低,差异均有统计学意义(均P<0.05)。高剂量实验+anti-miR-99a-3p组INS-1细胞中miR-99a-3p(0.43±0.14 vs 0.88±0.06)较高剂量实验+anti-miR-NC组显著降低,CD36 mRNA(2.51±0.22 vs 1.41±0.13)及细胞凋亡率[(20.45±2.03)%vs(10.56±1.02)%]均较高剂量实验+anti-miR-NC组显著升高,差异均有统计学意义(均P<0.05)。结论红车轴草总黄酮可能通过调控miR-99a-3p/CD36以减轻高糖对大鼠胰岛β细胞INS-1的损伤,进而抑制细胞的凋亡。展开更多
OBJECTIVE： To investigate the effect of Bushenyisui Formula on cell apoptosis and positive B cell lym- phoma （Bcl-2） in the Brain of rat models of Alzheim- er＇s disease （AD） induced by beta-amyloid protein （All...OBJECTIVE： To investigate the effect of Bushenyisui Formula on cell apoptosis and positive B cell lym- phoma （Bcl-2） in the Brain of rat models of Alzheim- er＇s disease （AD） induced by beta-amyloid protein （All3） and the mechanism underlying the effect. METHODS： Total of 40 SD rats, 20 females and 20 males, were randomly assigned to 4 groups, con- trolled group （A）, model group （B）, conventional treatment group （C） and Bushenyisui Formula treat- ment （BYFT） group （D）, 10 rats in each group. AI3 1-42 was injected into the bilateral hippocampus of the rats in group B, C and D to create the models of AD. Sham operation was performed on the rats of group A in the same way by injecting equal volume of 0.9% sodium chloride solution into their bilateral hippocampus. 5 days after operation, Bushenyisui Formula was intraperitoneally administered at a dose of 450 mg/kg to the rats of group D （QD） for 20 days. Equal volume of 0.9% sodium chloride solution was intraperitoneally injected into the rats of group B with the same procedure. C suspension （20 mg/mL） was intraperitoneally injected into the rats of group B with the same procedure. The number of apoptot- ic cells in Brain and the positive Bcl-2 were count- ed. The changes of learning and memory abilities were evaluated using Y-maze. RESULTS： Right after the establishment of the mod- els, group B, C and D compared to group A respec- tively, the outcomes of Y-maze were significantly different from that of group A, which suggested ob- vious learning and memory disorder in those groups （P〈0.01）. After treatment, the times of elec- tronic shocks of group C and D were significantly less than that of group B （P〈0.05）, and the numbers of apoptotic cells and positive Bcl-2 were signifi- cantly different from those of group B, apoptotic sells＇ number of group C and D smaller than that of group B and the number of positive Bcl-2 greater than that of group B. CONCLUSION： Bushenyisui Formula could increase the number of Bcl-2 in brain, which improved the function of nervous system pertaining to learning and memory abilities.展开更多
文摘目的研究红车轴草总黄酮对高糖诱导的大鼠胰岛β细胞损伤的影响,及其潜在的分子机制。方法本实验分为对照组,模型组,低、中、高剂量实验组,miR-NC组,miR-99a-3p组,anti-miR-NC,anti-miR-99a-3p组,模型+miR-NC组,模型+miR-99a-3p组,模型+si-NC组,模型+si-CD36组,高剂量实验+anti-miR-NC组和高剂量实验+anti-miR-99a-3p组。对照组给予5.5 mmol·L^(-1)葡萄糖处置;模型组给予25 mmol·L^(-1)葡萄糖处置;低、中、高剂量实验组分别给予12.5,25.0和50.0 mg·L^(-1)红车轴草总黄酮和25 mmol·L^(-1)葡萄糖处置;miR-NC组、miR-99a-3p组、anti-miR-NC组、anti-miR-99a-3p组分别转染miR-NC、miR-99a-3p、anti-miR-NC、anti-miR-99a-3p;模型+miR-NC组、模型+miR-99a-3p组、模型+si-NC组、模型+si-CD36组均给予25 mmol·L^(-1)葡萄糖处理,并分别转染miR-NC、miR-99a-3p、si-NC、si-CD36;高剂量实验+anti-miR-NC组、高剂量实验+anti-miR-99a-3p组均给予50.0 mg·L^(-1)红车轴草总黄酮+25 mmol·L^(-1)葡萄糖,并分别转染anti-miR-NC或anti-miR-99a-3p。用流式细胞术测定细胞凋亡率,用定量实时聚合酶链反应检测细胞中miR-99a-3p和CD36 mRNA的表达水平。结果模型组INS-1细胞中CD36 mRNA(2.74±0.27 vs 1.01±0.08)和细胞凋亡率[(27.63±2.71)%vs(5.69±0.58)%]均较对照组显著升高,miR-99a-3p(0.38±0.03 vs 1.00±0.09)较对照组显著降低,差异均有统计学意义(均P<0.05);与模型组比较,低、中、高剂量实验组的上述结果相反。模型+miR-99a-3p组的细胞凋亡率[(12.48±1.19)%vs(26.84±2.41)%]较模型+miR-NC组显著降低,miR-99a-3p表达量(0.79±0.07 vs 0.34±0.03)较模型+miR-NC组显著升高,差异均有统计学意义(均P<0.05)。模型+si-CD36组INS-1细胞中CD36 mRNA(1.35±0.12 vs 2.81±0.26)及细胞凋亡率[(13.54±1.32)%vs(25.87±2.52)%]均较模型+si-NC组显著降低,差异均有统计学意义(均P<0.05)。高剂量实验+anti-miR-99a-3p组INS-1细胞中miR-99a-3p(0.43±0.14 vs 0.88±0.06)较高剂量实验+anti-miR-NC组显著降低,CD36 mRNA(2.51±0.22 vs 1.41±0.13)及细胞凋亡率[(20.45±2.03)%vs(10.56±1.02)%]均较高剂量实验+anti-miR-NC组显著升高,差异均有统计学意义(均P<0.05)。结论红车轴草总黄酮可能通过调控miR-99a-3p/CD36以减轻高糖对大鼠胰岛β细胞INS-1的损伤,进而抑制细胞的凋亡。
文摘OBJECTIVE： To investigate the effect of Bushenyisui Formula on cell apoptosis and positive B cell lym- phoma （Bcl-2） in the Brain of rat models of Alzheim- er＇s disease （AD） induced by beta-amyloid protein （All3） and the mechanism underlying the effect. METHODS： Total of 40 SD rats, 20 females and 20 males, were randomly assigned to 4 groups, con- trolled group （A）, model group （B）, conventional treatment group （C） and Bushenyisui Formula treat- ment （BYFT） group （D）, 10 rats in each group. AI3 1-42 was injected into the bilateral hippocampus of the rats in group B, C and D to create the models of AD. Sham operation was performed on the rats of group A in the same way by injecting equal volume of 0.9% sodium chloride solution into their bilateral hippocampus. 5 days after operation, Bushenyisui Formula was intraperitoneally administered at a dose of 450 mg/kg to the rats of group D （QD） for 20 days. Equal volume of 0.9% sodium chloride solution was intraperitoneally injected into the rats of group B with the same procedure. C suspension （20 mg/mL） was intraperitoneally injected into the rats of group B with the same procedure. The number of apoptot- ic cells in Brain and the positive Bcl-2 were count- ed. The changes of learning and memory abilities were evaluated using Y-maze. RESULTS： Right after the establishment of the mod- els, group B, C and D compared to group A respec- tively, the outcomes of Y-maze were significantly different from that of group A, which suggested ob- vious learning and memory disorder in those groups （P〈0.01）. After treatment, the times of elec- tronic shocks of group C and D were significantly less than that of group B （P〈0.05）, and the numbers of apoptotic cells and positive Bcl-2 were signifi- cantly different from those of group B, apoptotic sells＇ number of group C and D smaller than that of group B and the number of positive Bcl-2 greater than that of group B. CONCLUSION： Bushenyisui Formula could increase the number of Bcl-2 in brain, which improved the function of nervous system pertaining to learning and memory abilities.
