Objective To study the role of local immunity in the female genital tract with non- gonococcal urethritis(NGU).Methods Forty-four cervical secretions from patients with NGU were collected.After treatment with Azithromycin,22 cases were followed up.One month later,pathogen was eliminated in 15 patients.Another 27 un-infected people were included in our study.The level of secretory immunoglobulin A(SIgA)was detected using the automatic special protein analysor,and interferon-?(IFN-?)was quantified by enzyme-linked immunosorbent assay(ELISA).All data were analyzed with ANOVA.Results The levels of SIgA and IFN-?in NGU infected group were(34.29?15.92)mg/L and(97.13?24.00)ng/L respectively,while those of uninfected group were(47.57?19.61)mg/L and(120.71?33.78)ng/L,respectively(all P0.05).Conclusions SIgA and IFN-?secreted by genital tract mucosa may help pre- vent and resist the local NGU infection.However,the effect is limited,and is insufficient to eliminate infection completely and prevent reinfection.

Humans ; Infant, Newborn ; Male ; Wiskott-Aldrich Syndrome ; diagnosis ; genetics ; therapy ; Wiskott-Aldrich Syndrome Protein ; genetics

Objective Ritodrine hydrochloride(RH) combined with radix salviae mihiorrhisa(RSM) is ap- plied to treat fetal growth ristriction(FGR). Curative effect was recorded during observation. Methods 62 pregnant women with slowly growing fetuses were divided into two groups randomly. Group A(test group) :including 31 preg- nant women who received RH combined with RSM treatment. Group B(control group) :including the other 31 preg- nant women who only received RSM treatment. Group B received 250ml of fat emulsion injection. One time every three days within one week. At the same time,gronp B also received injection of 500ml 10 % dextrose, coenzyme A 100U ,ATP 40mg,vitamin C 2g,dextran-40 and compound salvia injection 10ml one time a day,ten days in all. Be- sides the above-mentioned medicament for group B, group A received RH 100ml injection every day. Ten days was a period of treatment. After the treatment, uterine height, abdominal circumference, weight were measured and bipari- etal diameter, head circumference, abdominal circumference were checked by B-type ultrasonic inspection. After birth,weight of the baby and weight of placenta were measured too. Results Measurement indexes from group A, weight of the new-born baby and weight of placenta are obviously higher than those from group B. Conclusion RH combined with RSM can obviously extend blood vessel, loose placenta, improve blood circulation, accelerate cell metabolism, make microeirculation better, reduce permeability of capillary vessel, keep placenta's function and help foetus' growth.

Objective　 To explore the feasibility of recombinant adeno-associated virus (rAAV) as a vector for the gene therapy of liver cancer. Methods　 The rAAV/enhance green fluorescein protein (EGFP) recombinant was prepared by the routine method of two plasmids cotransfection. Results　 The experiment showed that one 10cm plate could produce 107-108 infection unit recombinant by the method of two plasmids cotransfection, and the transduction of HepG2 cell was increased with the increase of infection dosage of rAAV. About 100 multiplicity of infection (MOI) AAV vector could make all the tumor cell light. Conclusion　 Liver cancer cell can be efficiently transduced by rAAV, and AAV vector may be a valuable vector for the gene therapy of liver cancer.

Objective Study on the distribution of auto‐antibodies against platelet in adults and children with primary immune thrombocytopenia(ITP) .Methods Platelet auto‐antibodies were detected in 83 ITP patients and 58 non‐ITP patients by enzyme linked immunosorbent assay (PAKAUTO kit) .Anti‐GP Ⅱ b/Ⅲ a ,GP Ⅰ b/Ⅸ and GP Ⅰ a/Ⅱ a auto‐antibodies were analyzed for 46 a‐dults and 37 children with ITP .Results The positive rate of autoantibody was 66 .27% in ITP patients ,which was much higher than that of non‐ITP patients ,the difference was significant(P < 0 .05) .As for ITP patients ,female ITP patients in adult group were 28 ,while in children group were 24 ,the difference was not significant(P > 0 .05) ,but the morbidity of ITP in females was higher than that of males in both of the two groups ,the difference was significant(P< 0 .05) .There was no significant difference on the distribution of platelet auto‐antibodies in adult and children group(P> 0 .05) ,the main of them was resistance against GP Ⅱ b/Ⅲ a and GP Ⅰ b/Ⅸ antibodies .Conclusion The detection of platelet auto‐antibodies could distinguish ITP and non‐ITP patients ,and GP Ⅰ a/Ⅱ a has an important reference value about therapy .

Objective To clone amastin coding genes from different strains of Leishmania parasites. Methods Using amastin cDNA sequence as the reference, dbEST data base established by National Center Biotechnology Information (NCBI), USA, was searched by BLAST tool. A 309 bp DNA fragment of Leishmania major was found and used as the probe for the screening of a DNA library. The amastin gene of Leishmania major Abdou was cloned and sequenced. Specific primers were designed and amastin genes for Leishmania mexicana WR972, Leishmania brizeliensis and Leishmania amazonensis joseph were amplified by polymerase chain reaction. Results The amastin genes from 4 strains of Leishmania parasites were cloned and sequenced. It was found that all 4 amastin genes contained unique open reading frame of 552 bp and encoded amastin protein of 183 amino acid residues. Conclusion The amastin genes of 4 strains of Leishmania parasites were successfully cloned.

Objective To investigate the distribution of complications and the relationship with neurologic subtype and gross motor function in preterm infants with cerebral palsy (CP). Methods The type, grade of Gross Motor Function Classification System (GMFCS), intelligence,speech, ophthalmologic consultation, brainstem auditory evoked potential and electroencephalogram of 135 preterm infants with CP were reviewed. Results There were 284 complications in total, (2.10±1.33) per child, and was significantly different among various types of CP (F=5.50, P<0.001). The incidence of mental retardation and speech disorder was significant different among various types (P<0.05). The incidence of mental retardation, speech disorder, visual impairment and epilepsy increased significantly (P<0.05) in spastic quadriplegia infants,compared with those with diplegia and hemiplegia. The incidence of mental retardation, speech disorder, visual impairment and musculoskeletal disorder was significantly different (P<0.05) among various grades of GMFCS. The frequency of complications was more in children unable to walk (GMFCS Ⅳ~Ⅴ) than able to walk (GMFCS Ⅰ~Ⅲ) for children over 2 years old (t=70.05, P<0.001). Conclusion The incidence of mental retardation, speech disorder, visual and hearing impairment, secondary musculoskeletal disorder and the multiple disorders are related with neurologic subtype and/or the grade of GMFCS.

To study the metabolite excretion of theophylline, a rapid and specific method by liquid chromatography with heated electrospray ionization tandem mass spectrometry (LC-HESI/MS/MS) method for simultaneous determination of theophylline, 1, 3-dimethyluric acid (1,3-DMU), 3-methylxanthine (3-MX) and 1-methyluric acid (1-MU) in human urine was developed using theophylline-d6 and 5-fluorouracil as internal standards. Selected reaction monitoring (SRM) with heated electrospray ionization (HESI) was used in the negative mode for mass spectrometric detection. After diluted with methanol and centrifuged, the analytes and ISs were separated on a XDB-Phenyl (150 mm x 4.6 mm, 5 microm) column with a mixture of water-methanol-formic acid (30 : 70 : 0.15) as mobile phase at a flow rate of 0.6 mL x min(-1). The linear calibration curves for theophylline, 1, 3-DMU, 3-MX and 1-MU were obtained in the concentration range of 1.0-250 microg x mL(-1), separately. The method herein described is effective and convenient, and can be used for determination of theophylline and its three metabolites. The results showed that urinary excretion ratio of theophylline, 1,3-DMU, 3-MX and 1-MU is approximately 1 : 3 : 1 : 2 in Chinese subjects, which is similar to the reported excretion pattern in Caucasian.

Objective To evaluate the clinical value of sentinel lymph nodes (SLN) in predicting pelvic lymph node status for early cervical squamous cell carcinoma,and approach the clinical significance of SLN detection for guiding radical abdominal trachelectomy (RAT).Outcomes of follow up and fertility were also observed.Methods A total of 31 patients with stage Ⅰ a2-Ⅰ bl squamous cell carcinoma planned to be given RAT and pelvic lymphadenectomy were enrolled.99mTe-labeled phytate was injected before surgery.Intraoperatively,SLN were identified,excised,and submitted to fast frozen section.Systematic bilateral pelvic lymphadenectomy was performed,and then RAT was performed in patients with negative SLN.All nodes were sent for routine pathological examination and immunostained with anti-cytokeratin antibody to detect micrometastases.Results SLN were detected in all patients (100％,31/31).A total of 109 SLN were identified with a mean number of 3.5 per patient.Of these,SLN of 2 patients were positive on frozen sections and proved to be metastasis by final pathologic examination and quitted the RAT.No missed micrometastasis was found using immunohistochemical staining in SLN and other lymph nodes using histologically node-negative cases.No false negative cases was found and the negative value was 100％ (31/31).The sensitivity,accuracy,and false negative rates were 100％,100％,and 0,respectively.Perioperative complications occured in 5 patients including 2 cases of bladder injury and 3 cases of uterine artery injury.No relapses occurred during follow-up.Five of 19 patients with procreative desire conceived pregnancies (4 spontaneous abortion and 1 premature birth) after surgery.Conclusions The identification of SLN using 99mTc-labeled phytate could predict the pelvic lymph node status in early stage cervical cancer.Under the guidance of SLN detection,RAT is a feasible operative modality with well prognosis and low complications for young patients who desire to preserve reproductive function.

Objective To observe the effect of angiotensin-converting enzyme inhibitors (ACEI) on anemia and erythropoietin (EPO) requirements in maintenance hemodialysis patients. Methods Ninety maintenance hemodialysis patients with hypertension and anemia were divided into 2 groups by random digits table, observation group (45 cases, using ACEI as antihypertensive treatment), control group [45 cases,using calcium channel blocker (CCB) as antihypertensive treatment]. The follow-up period after starting ACEI or CCB therapy was one year. The hemoglobin concentration, serum EPO, EPO requirements were compared after 0, 2, 4, 6, 8, 10, 12 months' treatment. Results In response to ACEI, the mean hemoglobin value in observation group decreased progressively, reaching statistical significance after 6 months, and it had significant difference compared with that in control group [6 months: (94.21±9.20) g/Lvs. (105.55±9.16) g/L,12 months: (95.90±6.75) g/L vs. (105.81±4.45) g/L,P <0.05]. The EPO requirements experienced a progressive increase in observation group and reached statistical significance after 8 months, compared with those in control group [8 months: ( 10 090.75±1918.35) U/week vs. (7010.32±1600.15) U/week, 12 months: (11 586.39±2009.76) U/week vs. (7068.48±1615.35) U/week,P<0.05].Serum erythropoietin concentration remained stable during the study in two groups. Conclusion ACEI can worsen anemia and reduce the efficacy of EPO in maintenance hemodialysis patients.