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Objective To investigate the expression of human papillomavirus E2 mRNA in cervical cytologi-cal specimens as well as the role of that in cervical carcinogenesis and its clinical significance in screening and evalat-ing prognosis of cervical lesions.Methods The expression of E2 mRNA in 582 cases of cervical cytological speci-mens with high risk human papillomavirus infection and cytological diagnosis of NILM,ASCUS and LSIL,was detected by RT -PCR.Thereafter,all cases were divided into the four groups by colposcopy and histopathological confirmation, including 414 cases of cervicitis,95 cases of CINⅠ,51 cases of CINⅡ,20 cases of CINⅢ and 2 cases of invasive cervical carcinoma as well.Results The expression of HPV -E2 mRNA decreased dramatically corresponding with pathological upgrading from groups of cervicitis to invasive cervical carcinoma (χ2 =132.72,P <0.05).The sensitiv-ity,specificity,positive predictive value and negative predictive value of HPV -E2 mRNA for screening potential cervical lesions in group of NILM,ASCUS and LSIL were 77.2%,96.8%,75.6%,96.0% and 81.0%,91.7%, 79.1%,92.6% as well as 95.9%,93.4%,94.7%,95.0% respectively.Conclusion Deletion of HPV -E2 induced by genetic disruption played an important role in the early stage of malignant transformation of cervical epithe-lial cells.Therefore,detection of the levels of HPV -E2 mRNA expression might be clinically valuable for the screen-ing and evaluating of prognosis in cervical lesions.
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Objective The generation of drug resistance often leads to the failure of the bladder cancer chemotherapy.P-glycoprotein (P-gp) is an ATP-dependent drug efflux pump linked to development of multidrug resistance in cancer cells.The laboratory has successfully established adriamycin-resistant human bladder cancer cell line (pumc-91/ADM) from its parental cell line (pumc-91).According to the drug resistant spectrum analysis,pumc-91/ADM cell line exhibited the characteristics of multi-drug resistance.However,the expression of P-gp in two cell lines was still unknown.In this paper,there was a comparison between pumc-91/ADM and pumc-91 about the differential expression of P-gp.Methods To determine the expression and location of P-gp in pumc-91 and pumc-91/ADM,qRT-PCR,Western blot and immunocytochemistry were applied in the experiment.qRT-PCR was implemented to research the expression of P-gp mRNA in two cell lines (pumc-91/ADM and pumc-91).Western blot was adopted to investigate the expression of P-gp protein in pumc-91 and pumc-91/ADM cell lines.Immunocytochemistry technique was used to explore the cellular location of P-gp and affirm its expression in two cell lines visually.Student's t-test was employed for statistical analysis and P ＜ 0.05 was considered statistically significant.Results qRT-PCR analysis revealed that the expression of P-gp mRNA was upregulated in drug-resistant cell line pumc-91/ADM compared to parental cell line pumc-91.To normalize for differences in the amount of total RNA,GAPDH was selected as an endogenous RNA control.Compared with pumc-91,the expression of P-gp mRNA was upregulated 7.74 fold in pumc-91/ADM (t =11.97,P ＜ 0.05).Consistent with the qRT-PCR result,Western blot confirmed the protein of P-gp expressed differentially in two cell lines.The expression of P-gp protein was significantly increased in pumc-91/ADM compared to pumc-91.According to the results,the differences between pumc-91 and pumc-91/ADM had statistical significance (t =4.35,P＜0.05).Immunocytochemical analysis results demonstrated that P-gp was not only located in cell membrane but also in cytoplasm of the two cell lines.The expression of P-gp in pumc-91/ADM increased distinctly.The difference was statistically significant (t =11.41,P ＜ 0.05).Conclusion Compared with pumc-91,the expression of P-gp in pumc-91/ADM was significantly upregulated.
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Objective To discuss the meaning of continuous intracranial pressure (ICP) monitoring in patients with severe traumatic craniocerebral injury. Methods One hundred and twenty four patients with severe craniocerebral injury treated from August 2004 to February 2011 in our hospital, were enrolled and divided randomly into ICP monitoring group (n = 62) and routine treatment group (n = 62). The patients of ICP monitoring group had adjusted treatment plan according to the changes of ICP at any time, whereas the patients in routine treatment group underwent routine neurosurgical treatment according to the doctors' experience. Results There were 7 cases of acute kidney function failure,and 11 cases of electrolyte disturbances in the ICP group.There were 15 cases of acute kidney function failure, and 25 cases of electrolyte disturbances in the routine group. The complication rate in the ICP group was lower than that in the routine group (x2 =3. 54 and 7.67 for acute kidney function failure and electrolyte disturbances respectively, Ps <0. 01). The days of mannite using were (6±2)dand (15 ±3)d, respectively; the dosage of mannite using were (749 ± 125) g and (1545 ±250) g,respectively. The good recovery and slight disability were 28 and 16 cases in the ICP group, and 13 and 9 cases in the routine group,respectively. The severe disability,vegetative state and death were 9,4 and 8 cases in the ICP group,and 17,7 and 13 cases in the routine group. The days and dosage of mannite using in the ICP group were much less than those in the routine group (t = 8. 32 and 7.41, Ps < 0. 01). The proportion of good recovery and slight disability in the ICP group were higher than those in the routine group(x2 =5. 07 and 3. 55,Ps <0.01). However, the proportion of severe disability, vegetative state and death in the ICP group were lower than those in the routine group (x2 =0.84,0.89 and 1.43, Ps < 0. 01) . Conclusion Continuous ICP monitoring in severe craniocerebral injury shows benefits in directing treatment plan adjustment, reducing complications and improving the prognosis.
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Objective To explore the early diagnosis and treatment of delayed intraeranial haematoma.Methods To analyze the patients that were detected haematoma by first CT examine m Hospital, but were diagnosis of intracranial haematome consequently by CT reexamine and ICP monitor. Results 66 patients of delayed intracranial haematoma were evacuated and 30 patients died. The operative mortality was 45.5 %. Conclusion To burr bole in time and repeat CT scan will improve the prognosis of acute eneephalocele and deteriorating patients.