Objective To set up the filter mating method of plasmid conjugation experiment for Corynebacterium.Methods The first plasmid conjugation between different genus was performed by filter method.Three strains of highly erythromycin-resistance Enterococcus faecalis isolates[minimal inhibitory concentration(MIC)of erythromycin>256 mg/L,MIC of levofloxacin≤8 mg/L] which screened by agar dilution method were used as donators and 3 strains of Corynebacteria isolates(MIC of erythromycin≤32mg/L,MIC of levofloxacin=128 mg/L)were used as acceptors.In the second conjugation between the same genus but in different species,three Corynebacterium xerosis strains(MIC of erythromycin>256 mg/L,MIC of ceftazidime=16 mg/L)which were conjugants of the first conjugation were used as donators and 6 strains of Corynebacteria isolates(MIC of erythromycin≤32 mg/L,MIC of ceftazidime 128 mg/L)were used as acceptors.Results In the first conjugation between different genus,the plasimid conjugations were done for 9 times between 3 donators and 3 acceptors,4 of which gained the phenotype and genotype of resistance and the transfer rate was 44%.In the second conjugation experiment,the plasmid conjugations were done for 18 times between 3 donators and 6 acceptors,7 of which gained the resistant phenotype and the transfer rate was 39%.Erythromycin-resistance was transferred from the donators to the conjugants in varying degrees.The resistance was transferred from Enterococcus faecalis to Corynebacteria and then to other Corynebacteria which were of the salne genus but of different species.Conclusion Filter mating conjugation method could be used to study the mechanisms of resistance transmission of Corynebacterium.

Objective To investigate changes of metabolic syndrome (MS ) in patients with adrenocortical adenoma (ACA ). Methods Sixty‐five patients with aldosterone producing adenoma (APA) ,43 patients with cortisol‐secreting adenoma (CSA) and 24 patients with nonfunctional adrenal adenoma (NAA) were evaluated. Body Mass Index (BMI) ,blood pressure ,plasma lipid ,fasting and 2 h postprandial plasma glucose ,plasma and urinary aldosterone ,plasma potassium ,basic and upright plasma renin activity (PRA ) ,plasma and urinary cortisol ,plasma ACTH and plasma potassium ACA were examined and compared with those from 53 patients of essential hypertension (EH ) and 58 controls. Adrenalectomy was performed for all the patients with adrenocortical adenoma. The data after operation were compared with those before operation. Results (1) The prevalence of MS was 38.5% ,41.9% , 20.8% ,24.5% and 17.5% in the groups respectively. The prevalence of obesity/overweight was higher in CSA group than in the other groups. There were 44.6% patients with hyperglycemia in APA group ,and 48.8% in CSA group. The prevalence of hypertension was the highest in APA and EH group ,followed by CSA group ,NAA and control groups. There were 55.4% patients with lipid disturbance in APA group , and 46.5% in CSA group. (2 ) We divided all APA and CSA patients into groups with or without MS. The APA patients with MS had higher plasma aldosterone than those without MS. The CSA patients with MS had higher 08 :00 and 24 :00 plasma cortisol than those without MS. (3) After operation ,the plasma and urinary aldosterone were decreased and the plasma potassium was increased in APA patients. The 08 :00 ,24 :00 plasma cortisol and urinary cortisol were decreased and the 08 :00 plasma ACTH was increased in CSA patients. There were no significant differences in hormonal measurements of NAA patients before and after operation. (4 ) The prevalence of MS was 27.7% ,27.9% and 29.2% in three groups after operation. The systolic and diastolic blood pressures were decreased in APA patients after operation ,and the systolic blood pressure decreased in CSA patients. There was no significant difference in MS measurements of NAA patients before and after operation. Conclusions Our study indicates that patients with functional adrenocortical adenoma have a significantly higher prevalence of metabolic syndrome which is related to over secretion of adrenal cortex hormone. After operation ,accompanying normalization of hormonal secretion ,the condition of MS in functional adrenocortical adenoma patients is improved.

Objective To know the situation of nurses obtaining osteoporotic fractures related knowledge ,and provid guiding basis for further education and relevant training on target people .Methods Questionnaire survey and semi -structured interviews methods were used to investigate 595 nurses ,9 clinical nurse workers and nurse managers who come from a tertiary comprehensive teaching hospital were interviewed personally .Results The scores of the related knowledge in nurses were 35 .70 ± 6 .36 ,score rate was 67 .36% ;Interview data analysis showed that lack of professional training ,training was not systematic ,the approach obtain knowledge was simple were result in lack of the related knowledge in nurses ;By the multiple liner stepwise regression ,The educa‐tion level and professional title were main factors which affect nurses acquired osteoporosis knowledge .Conclusion It is necessary to focus on improving the strengthen of related knowledge education for the nurses with low education background and low profes‐sional title ,At the same time ,related departments of the hospital should strengthen the training of professional knowledge .

Objective To report the clinical and pathological features of the sensory neuropathy caused by a combined therapy of telbivudine and pegylated interferon α-2a in 2 patients with hepatitis B virus infection Methods Two male patients aged 48(case 1)and 20(case 2),who suffered from hepatitis B virus infection.were given telbivudine and pegylated interferon α-2a.After 4 months treatment,both patients developed numbness and pain in the lower limbs.The physical examination showed decreased pain sensation in distal extremities.Hypahidrosis appeared in distal extremities.The nails were pale changed in fingers and toes in cage 1.Case 2 presented mild weakness in the proximal muscle of lower limbs and the tendon reflex was decreased in both lower limbs.His 8erunl creatine kinase level was mild elevated.The electromyography examination and sural nerve biopsies were performed on both patients.Results Electromyography examination showed significant decrease of amplitude of sensory nerve action potentials and mild decrease of sensory nerve conduction velocities in both patients.The amplitude of motor nerve action potentials was also decreased in case 2.Light microscope examination revealed middle reduction of myelinated fibers,wallerian degeneration of myelinated fibers and small clusbers of regenerated fibers in sural nerve.Electro microscopy examination revealed the loss of unmyehnated nerve fibers.After the combined therapy was stopped and vitamin B,CoQ10 and L-camitine were administered,the patients recovered gradually.Conclusions Combined therapy of telbivudine and pegylated interferon α-2a may cause sensory neuropathy with electrophsiological and pathological abnormalities of axonal lesions.The sensory neuropathy induced by the combined therapy may be reversible.

Antineoplastic Agents ; adverse effects ; Drug-Related Side Effects and Adverse Reactions ; therapy ; Humans ; Neurotoxicity Syndromes ; therapy

Objective To investigate the relationships among estrogen,transforming growth factor ?(TGF?) and smooth muscle cells in human prostatic tissue by cell experiment. Methods Eleven strains of prostatic stromal cells were cultured successfully from BPH patients,and stimulated by estradiol(E 2).Cell proliferations were observed by MTT,and mRNA expressions of TGF? 1,TGF? 2 and smoothelin were observed by RT-PCR. Results E 2 could not influence TGF? 1 expressions in prostatic stromal cells,but could upregulate expressions of TGF? 2 and smoothelin;and expression values of TGF? 2 and smoothelin had a positive correlation. Conclusions E 2 can influence growth and differentiation of prostatic smooth muscle cells through induction of TGF? 2 expression.

Abstract?AIM:To evaluate the effect of combined glaucoma and cataract surgery on the function of eye surface and tear film.?METHODS:This clinical trial involved 75 patients ( 75 eyes ) with glaucoma complicated with cataract undergoing combined glaucoma and cataract surgery.All the eyes were divided into surgical group ( the eyes undergoing operation ) and control group ( the other eyes).The symptoms and signs of dry eye disease, Schirmer's I test, break -up time ( BUT ) , corneal fluorescein staining were tested and marked 1mo after operation.Comparison of the results was made between two groups.?RESULTS:The average intraocular pressure was 16.25± 0.46mmHg at 1mo after operation, compared with 45.29± 4.39mmHg at 3d before surgery, the difference was statistically significant ( P<0.05 ).Preoperative average visual acuity was 0.08±0.06, corrected visual acuity was<0.05 in 23 eyes,≥0.05 to<0.1 in 16 eyes,≥0.1 to<0.3 in 36 eyes.Postoperatively 1mo, corrected visual acuity:<0. 05 for 7 eyes (9%),≥0.05 to <0.1 for 11 eyes (15%), ≥0.1 to<0.3 for 38 eyes (51%), ≥0.3 to <0.5 for 11 eyes (15%) , ≥0.5 for 8 eyes (11%), postoperative visual acuity was 0.15 ±0.1, which was significantly higher than before surgeries ( P<0.05).The postoperative dry eye symptoms of surgical group was higher, compared with that of control group, and the differences of diagnosis of dry eye test indicators between the two groups were statistically significant(P<0.05).? CONCLUSION: Combined cataract and glaucoma surgery may affect postoperative ocular surface and tear film function, make the tear film stability damaged and lead to dry eye disease.

Objective To report the experience of nursing during operation on spina bifida and related diseases.Methods 168 patients with spina bifida and related diseases undergoing spine surgery in the hospital from October, 1989 to October, 2008 were reported. They were 76 males and 92 females, the averaged age was 5.6 years old (from 1 month to 23 years old). There were two follow-ups one month and 6 months to 2 years after operation. Results According to the second follow-up, the neural function improved in 123 cases, didn't change in 32 cases, and deteriorated in 13 cases. Nursing experience included: carefully observed the patients, especially managed respiratory tract and blood pressure; prepared good conditions for surgon to protect the neural function; sponge cushion for the pressured positions.Conclusion Perfect preparation of nursing can facilitate spine surgery on spina bifida and related diseases.

Objective To study the influence of blood glucose, blood lipids and other cerebral infarction risk factors in the mean platelet volume (MPV). Methods A total of 562 patients with cerebral infarction and type 2 diabetes mellitus (DM) and 216 cerebral infarction patients without DM (non-DM) were included in this study. The platelet parameter of peripheral blood and other laboratory indexes were detected including platelet count (PLT), MPV, platelet distribution width (PDW), plateletcrit (PCT), fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c), triglycerides (TG), total cholesterol (TC), high-density lipoprotein (HDL-C), low density lipoprotein (LDL-C) and very low density lipoprotein (VLDL-C), urea nitrogen (BUN), creatinine (Cr), uric acid (UA), high-sensitivity C-reactive protein (hs-CRP) and homocysteine (HCY). The patients were scored by the National Institute of Health stroke scale (NIHSS) after hospitalization. The MPV changes in patients with cerebral infarction were observed, and different influences of blood glucose, blood lipids to MPV were analysed. Results Values of FBG, HbA1c, TC, TG, LDL-C, BUN, UA, HCY, hs-CRP, and NIHSS were significantly higher in DM group than those of non-DM group. The score of NIHSS was significantly higher in DM group than that of non-DM group. The level of HDL-C was significantly lower in DM group than that of non-DM grou. The MPV was significantly higher in DM group than that of non-DM group [(9.60 ± 1.35) fL vs. (9.27 ± 1.01) fL, P<0.05). There was a positive correlation between MPV and FBG, HbA1c, hs-CRP, WBC, VLDL-C and NIHSS, r=0.438, 0.410, 0.336, 0.164, 0.321 and 0.249 (P<0.05). Multiple regression analysis showed that FBG, VLDL-C, HbA1c, hs-CRP and NIHSS were the independent influential factors of MPV (P<0.05). Conclusion The influencing factors of MPV should be controlled in patients with cerebral infarction combined with type 2 diabetes mellitus, reducing the activation of platelet, and delaying the progress of cerebral infarction.

Background and purpose:The prognosis of ovarian cancer is poor and the diagnosis is relatively late. It is needed to search for early diagnosis and treatment for ovarian cancer. This study investigated the expression of serum miRNAs in patients with malignancy or benign ovarian tumor preoperativey and analyzed its correlation with clinicopathological progress and prognostic features of epithelial ovarian cancer.Methods:Forty-eight miRNAs which have been reported to be related to ovarian cancer were ordered. The differential expression of 48 miRNAs in the serum of patients with malignant or benign epithelial ovarian tumors was detected by TaqMan low density array. The differentially expressed miRNAs were further confirmed by real-time fluorescent quantitative polymerase chain reaction (RTFQ-PCR). The relationship between the expression level of selected miRNA and clinical clinicopathological factors, progress and prognosis were analyzed.Results:TaqMan low density array and further RTFQ-PCR showed that only miR-125b was sig-nificantly increased in 135 ovarian cancer patients as compared with 38 individuals with benign tumor. The expression of miR-125b was higher in early stage patients than that in advanced stage patients (P=0.039). The patients without residual tumor expressed more miR-125b than patients with residual tumor (P=0.013). The high level of miR-125b was signifi-cantly correlated with longer progress free survival (PFS) (P=0.003), but not correlated with overall survival (OS) (P=0.069). Conclusion:MiR-125b may play an important role in the pathogenesis of epithelial ovarian cancer and prognosis. It may be a potential gene to predict the recurrence of epithelial ovarian cancer, but the change of gene expression at different stages and its underlying mechanism need further research.