ABSTRACT
Subject(s)
Humans , Blister , Necrosis , Phosphotransferases , Skin , Stevens-Johnson SyndromeABSTRACT
Objective To investigate the effect of treadmill running pretreatment on the expression of CyclinA and CyclinE protein in hippocampus of rats after global cerebral ischemia and reperfusion.Meth-ods 60 healthy male wister rats were randomly divided into control group, model group and experiment group.Global cerebral ischemia reperfusion model was generated by improved four-vessel occlusion as de-scribed according to the description of Pulsinelli's method.Rats in the experiment group were performed treadmill running for 2 weeks before injury.The water maze test was performed at 24 h and 48 h respectively after injury to determine the spatial memory ability of rats.Morphological changes of hippocampus were ob-served by HE staining ( hematoxylin-eosin staining) at 3 h,6 h,24 h,48 h after injury and the expression of CyclinA and CyclinE were detected by immunohistochemical staining.Results Compared with control group,the survival rate of neurons in the model group was significantly decreased at each time point.Morris water maze test showed that the escaping latency of rats in the model group was significantly prolonged( 24 h (24.35±3.99)s,48 h(33.08±5.85)s),and the frequency of crossing the platform was decreased(24 h(6.80 ±0.79),48 h(4.00±0.67)).The expression of CyclinA was increased significantly in the model group ((8.40±0.52)/high view,(11.70±1.06)/high view,(15.50±0.53)/high view,(22.40±0.52)/high view) as well as the expression of CyclinE((20.30±0.48)/high view,(15.20±0.63)/high view,(10.00± 0.82)/high view,(7.70±0.68)/high view) (P<0.05).Compared with model group,the survival rate of neurons in the model group was significantly increased at each time point.Morris water maze test showed that the escaping latency of rats in the experiment group was significantly shorten(24 h(13.21±2.73) s,48 h (24.20±4.66)s),and the frequency of crossing the platform was increased(24 h(9.70±0.95),48 h(6.30± 1.16)).The expression of CyclinA was significantly increased in the model group((10.60±0.84)/high view),(16.70± 0.68)/high view),(24.50±0.53)/high view),(36.20±1.40)/high view) as well as the expression of CyclinE((31.60 ±0.70)/high view),(24.50±0.70)/high view),(16.80±0.63)/high view),(9.10±0.74)/high view) (P<0.05).Con-clusion The treadmill running pretreatment improves the function of spatial memory after global cerebral ischemia and reperfusion,potenlially mediated by regulating the expression for cell cycle proteins,which have a protective effect on cerebral brain tissue.
ABSTRACT
This study was aimed to observe the therapeutic effect and mechanism ofQi-Zhu Er-Zhu Er-Cao Tang(QZEZECT) in the treatment of chronic atrophic gastritis (CAG) precancerous lesion. A total of 56 clean grade healthy Wistar rats were randomly divided into 6 groups. In the negative control group (NC), model group,Wei-Fu-Chun(WFC) group,Ren-Zhu Jian-Wei Ke-Li(RZJWKL, RZ) group, there were 10 rats in each group. In the high-dose QZEZECT (QZ-H) group and low-dose QZEZECT (QZ-L) group, there were 8 rats in each group. CAG/PLGC model was established by MNNG in the model group, WFC group, RZ group, QZ-H group and QZ-L group. Intragastric administration of corresponding decoctions at the dose of 0.39 g·kg-1, 3.2 g·kg-1, 54.4 g·kg-1, 13.6 g·kg-1 were given to rats in the WFC, RZ, QZ-H and QZ-L groups once a day for 28 consecutive days, respectively. The same volume of normal saline was given to the NC group and the model group. Histomorphological changes of gastric mucous membrane in rats of each group were observed. Expressions of NF-κB/p65 and CyclinE protein were detected. The results showed that compared with the NC group, the degrees of infiltration and dysplasia and expressions of NF-κB/p65 and CyclinE significantly increased in the model group with statistical significance (P < 0.01). Compared with the model group, the expression of NF-κB/p65 and CyclinE in the WFC group reduced with statistical significance (P < 0.05). The expression of NF-κB/p65 and CyclinE in the RZ and QZ-L group obviously reduced with statistical significance (P < 0.01). The overall effective rates of WFC group, RZ group, QZ-H group and QZ-L group were 50%, 63.3%, 43.3% and 73.3%, respectively. It was concluded that QZEZECT can treat CAG precancerous lesion, which may take effect by improving and inhibiting pathologic changes of the transcription factor of inflammation.
ABSTRACT
Objective To investigate the expression of p27kip1, CyclinE, CyclinD1 in bladder transitional cell carcinoma (BTCC), and evaluate their relationship with turnout cell proliferation. Methods To study the expression of p27kip1, CyclinE and CyclinD1 protein in 41 cases of paraffin-embedded BTCC tissue and in 12 cases of cystitis tissues by immunohistochemical method SP. Results There was a negative relationship between p27kip1 expression and clinical stage and pathological grade.There was no relationship with lymph node metastasis (P>0.05). There was a positive relationship between CyclinE expression and clinical stage, pathological grade and lymph node metastasis (P<0.05). There was no relationship between CyclinD1 expression and clinical stage, pathological grade and lymph node metastasis (P>0.05). Conclusion The results of this study showed that the abnormal expression of p27kip1, CyclinE, may play important roles in the genesis and progression of BTCC. CyclinD1 may take activation in the early term of BTCC.
ABSTRACT
Objective:To study the expressions of cyclinE,cdk2 and p27kip1 in invasive pituitary adenomas and their relation to clinical biological behaviors. Methods:Western blotting analysis was adopted to detect the expressions of cyclinE,cdk2 and p27kip1 in 37 cases of noninvasive pituitary adenomas and 21 cases of invasive pituitary adenomas. Results:The expressions of cyclinE and cdk2 in invasive pituitary adenomas were significantly higher than those in noninvasive pituitary adenomas(both P
ABSTRACT
Objective:To investigate the expression rule of Cyclin-E in endometrium during the early pregnancy and its role in blastocyst implantation in mice.Methods:RT-PCR and immunohistochemistry techniques were applied to detect Cyclin-E gene and protein expression in endometrium from pregnant mice on days 1～7.In addition Anti-cyclinE antibody was injected into horns of uterus of day 3 pregnant mice to observe the numbers of implanted blastocysts.Results:Expression of Cyclin-E gene and protein in pregnant mice were steady increasing since day 2 and reaching maximal level on day 5 of pregnancy.Injection of Anti-cyclinE antibody could decrease the numbers of implanted blastocyst compared with that of saline-injected group.Conclusion:Cyclin-E were persistently expressed in mouse endometrium during the early pregnancy and might be concerned with proliferation differentiation of endometrium and participates in the regulation process of mouse blastodyst implantation.
ABSTRACT
Objective To observe the effect of Yiqi Huayu Recipe on the expression of protein kinase C (PKC) and CyclinE in rats with gastric precancerous lesions (GPL). Methods The model of GPL was established mainly through N-methyl-N-nitro N-nitrosoguanidine (MNNG) together with other factors including alcohol stimulation and undue hunger and overeating. The survived rats after modeling were randomly divided into spontaneous recovery, and high-, moderate- and low-dose Yiqi Huayu group. After the corresponding treatment, the expression of PKC and CyclinE were detected by immunohistochemical method in each group. Results The expression of PKC and CyclinE in trement group were distinctly lower than those in spontaneous recovery group (P
ABSTRACT
Objective To investigate the expression and significance of cyclinE in gastric carcinoma. Methods We detected the expression of cyclinE in different pathologic types gastric cancer samples by immuno-histochemical staining technique (SP method). Results In 59 gastric cancer samples the positive rate of cyclinE expression was 55.93 %(33/59) and significantly higher than those of normal gastric mucosa 11.11 %(2/19) (P 0.05). Conclusions The high expression of cyclinE are associated with the progression of gastric cancer and probably related to the behavior of cellular biology.