Objective To study cervical human papillomavirus (HPV) infection and genotype distribution characteristics in patients with vaginal disease.Methods The PCR dot blot was used to carry out HPV detection of cervical exfoliated cells in 816 women with cervical lesions in the hospital, and 23 kinds of HPV genotypes were identified.Results Among the 816 cases receiving HPV type detection, HPV of 532 cases (65.20%) was positive, including 371 cases (69.74%) with low-risk HPV (HR-HPV) infection, 161 cases (30.26%) with low-risk HPV infection (LR-HPV) (P<0.05).The HPV infection rate below 45 years old was relatively higher.The HPV infection rate in patients with cervical cancer (97.10%) was higher than that in patients with cervical intraepithelial neoplasia (CIN) II -III (80.54%), patients with CIN Ⅰ(41.55%) and patients with cervicitis (17.20%) (P<0.05).The top five types of HPV infection were HPV16, 58, 18, 11 and 56 type, respectively.The single infection rate (79.70%) was higher than multiple infection rate (20.30%) (P<0.05); HR-HPV infection was the main infection in single infection, and double infection was the main infection in multiple infection.Conclusion Below 45 years old women are the high-risk groups of HPV infection.16, 58, 18, 11 and 56 are the main types of HPV infection.The infection rates of patients with cervical cancer and precancerous lesions are relatively higher.Paying attention to the screening of HPV infection has positive significance in the prevention and treatment of cervical cancer.

Objective To describe the clinical characteristics,outcome and prognostic factors of primary intraspinal tumor treated with postoperative radiotherapy.Methods Thirty-three patients diagnosed as suffering from intraspinal tumor treated with postoperative radiotherapy were analyzed.There were eighteen male and fifteen female,with a median age of 37 years(range 7-64 years).Two patients were treated with grossly total resection,25 subtotal resection,2 biopsy only.These patients were treated either with(~(60)Co)(n =18,before 1998) or 6?MV-X ray(n =15,after 1998) to the total dose of 45-68?Gy.The overall response and survival rates were calculated by Kaplan-Meier method and the difference between groups was tested by the log-rank method.The prognostic factors related to the characteristics of patient,tumor,and treatment were determined.Results The overall response,five-year and disease-free survival rate was 81.3%,59.4% and 56.3%,respectively.By multivariate analysis,the histological type(P= 0.039) and gender(P= 0.049) had independent impact on the 5-year survival rate.Ependymoma had a better prognosis compared to other histological subsets and female gained more survival advantage over male.There was no close relationship between survival and other factors,such as age,extent of surgery,initial site,irradiation dose,or the interval between surgery and radiotherapy.Conclusions Postoperative radiotherapy is safe and effective for primary intraspinal tumor.The histological type and gender are important prognostic factors of survival in primary intraspinal tumors.

To obtain the aptamers with high affinity and specificity for cyclosporin A(CsA),a synthesized 78 nt single stranded DNA(ssDNA)random library containing 35 random sequences flanked by invariant primer was subjected to 1 1 rounds of selection against CsA by SELEX protocol.Magnetic beads were used for target immobilization and the biotin-streptavidin-horseradish peroxidase system was employed for determining the binding affinity between the aptamers and CsA. After ten rounds of selection and amplification, with an increasing affinity for each round,the selected aptamers were cloned,sequenced and analyzed for their primaryand secondary structures.The 19 aptamers were divided into five groups based on primary sequence homology.Hairpin loop is the main motif in the predicted secondary structure and is supposed to be the binding part of the aptamers to CsA.The CsA-specific aptamers will be useful for enzyme-linked assays or immunofluorescence asses of CsA.

In this paper is recommended a highly sensitive and reagent-safe method to determine plasma heamoglobin (FHb) in viscacha hemolytic test. The 2,4-dichlorophenol method (2,4-DCP) of Trinder reaction has been improved. The performance of 2,4-DCP is verified. The sensitivity of 2,4-DCP is 2.39 times that of phenol method. It is well used with run precision and day-to-day precision. The reaction color is stable. The reference value FHb is 1-36.7 mg/L. Sodium citric is an excellent anticoagulant liquid to keep erythrocyte. The 2,4-DCP method is neither carcinogenic nor poisonous;it is suitable for viscacha hemolytic test in clinical and biomedical engineering.
Chlorophenols ; Coombs Test ; methods ; Hemoglobins ; analysis ; Hemolysis ; Humans ; Sensitivity and Specificity

Objective To investigate the relationship between serum PCT,CRP,BNP and cardiac troponin I (cTnI)and its clinical significance in patients with sepsis.Methods 112 patients with sepsis treated in our hospital were collected.Patients were divided into sepsis,severe sepsis and septic shock groups according to their degree of illness.The serum levels of cTnI and cTnI were measured in peripheral blood samples of pa-tients with sepsis,severe sepsis and sepsis shock.To analyze the correlation between serum cTnI and cTn I in patients with sepsis.The levels of BNP and cTnI were significantly higher in septic shock group than in severe sepsis group.The difference was statistically significant(P<0.01),and that in severe sepsis group was signif-icantly higher than that in sepsis group(P<0.01).The results of correlation analysis showed that there was a positive correlation between serum PCT,BNP,CRP and cTnI levels,but the correlation was PCT(r =0.831)>BNP(r=0.456)>CRP(r=0.287).Results Conclusion cTnI and serum PCT,CRP,BNP are in the serum of the patients.With the exacerbation of sepsis patients,there will be more significant myocardial injury symptoms.

Objective To investigate epidermal growth factor receptor(EGFR)gene T790M mutation in plasmatic ctDNA samples from 171 patients with non-small cell lung cancer and analyze the relationship between EGFR T790M mutation and the clinical factors. Methods The EGFR T790M mutation was detected in 171 cases by super amplification refractory mutation system(Super ARMS)in this paper. Rusults The EGFR gene T790M mutation was identified in 7.60%(13/171)plasmatic ctDNA samples which mostly came from patients withⅢb~Ⅳstages of lung cancer. The EGFR T790M mutation rate was identified in 2.05%(3/146)plasmatic samples of pa-tients who did not received treatment of EGFR-TKIs,which was lower than 40.00%(10/25,P<0.05)plasmatic samples of patients who received treatment of first generational EGFR-TKIs. The EGFR T790M mutation rate was identified in 75.00%(3/4) and 60.00%(6/10) plasmatic samples of patients who have received TKI for 6 to 10 months and more than 10 months,which was higher than 9.10%(1/11,P < 0.05)plasmatic samples of patients who have received TKIs for less than 6 months. Conclusions This article demonstrated that EGFRT790M muta-tion was more common in lately NSCLC patients who have received TKIs treatmentover 6 months,meanwhile the EGFR T790M mutation dynamical detective technology will effectively guide the clinic treatment.