Targeted or comprehensive culture based microbiology laboratory automation has become reality in clinical laboratory diagnosis of infectious diseases,to shorten the time for identification of microorganisms such as bacteria,yeasts and mycobacteria.Automation includes automated plating,staining,blood culture,identification and susceptibility system,matrix-assisted laser desorption/ionization time of flight mass spectrometry,and middleware for Laboratory Information System and Management Information System link.

The prevalence of obesity among pregnant women is increasing,that include pre-pregnancy obesity and/or over gestational weight gain diagnosed by different criteria in different countries.Emerging evidance suggests that maternal obesity before and during pregnancy have not only short-term effects on both of mother and offspring,but also long-term adverse influences on offspring health.Evidence from both animal and human studies indicates that maternal obesity increases the weight and adiposity,alters body composition and increases the risk of metabolic disorders.These changes further result in the increased risk of metabolic syndrome of offspring in their later life.Further studies are required to elucidate the programming mechanisms of disease risk in the offspring as a consequence of matemal obesity.Strategies to prevent and reduce the impact of maternal obesity on long-term health of offsprings are required.

Objective To analyze the change of disease constitution of complications in preterm infants in our hospital and to provide a scientific basis for the clinical prevention and treatment in the future. Methods Two hundred and sixty-eight preterm infants were admitted in NICU of our hospital from Jan. 2004 to Dec. 2009. The constitutions of complications in preterm infants were retrospectively analysed by year. Results One hundred and ninety-seven cases had complications and the incidence of complications was 73.51% ( 197/268 ). The most common complications of preterm infants in our hospital included neonatal hyperbilirubinemia (41. 62% ,82/197), neonatal hypoxic-ischemic encephalopathy (39. 59% , 78/197) and neonatal aspiration syndrome (34. 01%, 67/ 197). The change of disease constitution of the complications were as follows: the disease constitution of neonatal hyperbilirubinemia always located within the first 3 diseases ( ranged from 28. 57% to 75.76% , χ2 =13. 582, P < 0. 001) ;the occurrence of neonatal hypoxic-ischemic encephalopathy showed upward trend( increased from 10. 71% to 56. 25% ,χ2 =7. 577,P<0. 001) ,but decreased in 2008,2009;the neonatal aspiration syndrome presented with a high but fluctuant incidence among the 6 years (ranged from 15. 15% to 56. 25% ,x2=12.002,P < 0.001) ; the neonatal hypoglycemia increased in the nearly 3 years;the incidence of neonatal asphyxia was stationary;the disease constitution of neonatal respiratory distress syndrome fluctuated up and down( ranged from 3. 57% to 20.41% ,χ2 = 4. 125,P<0. 05) ;the anemia in premature infant showed upward trend,increasing from 3.03% to 18. 37% (χ2 = 4. 332,P< 0.05 ) ; the occurrence of neonatal scleredema decreased with no statistical significance; the preterm infants suffered from infectious diseases with lower rate. Conclusions The disease constitution of the hospitalized preterm infants in our hospital in the last 6 years is mainly non-infectious diseases. The neonatal asphyxia recovery technology should be further improved. The serum bilirubin concentration should be monitored early after birth of preterm infants and intervened timely. Cranial imaging studies should be performed timely for early detection of brain injury.

Objective To explore the clinical characteristics of roseola infantmn with febrile convulsions.Methods All cases with roseola infantum or with febrile convulsions were retrospectively collected who were confirmed during January 2005 to February 2008. There were 31 cases of roseola infantum with febrile convulsions. Their clinical features were compared with cases of roseola infantum without febrile convulsions and eases of other febrile convulsions,respectively, and further analyzed with literature. Results There were 17.1% (3 1 / 181 ) roseola infantum with febrile convulsions among febrile convulsions and 24.4% (31/127)among febrile convulsions less than 2 years;The incidence of roseola infantum with febrile convulsions was 15.7% (31/198) among roseola infantum. The median age of roseola infantum with febrile convulsions was less than that of other febrile convulsions. There were no significant differences in sex, age, maximum body temperature, duration of fever and day of rash onset between roseola infantum with and without febrile convulsions ( P > 0.05 ), but the frequency of family history of febrile convulsions was significantly higher in roseola infantum with febrile convulsions than in those without febrile convulsions ( P < O. 05). Conclusions Familial predisposition is a risk factor in roseola infantum with febrile convulsions. In most cases the prognosis of roseola infantum with febrile convulsions was good,but it can be associated with severe diseases of central nervous system. Roseola infantum should be considered when encountering children under the age of 1 year with a first febrile convulsion.

Objective:To investigate the effect of local application of bisphosphonates(BPs) and systemic estrogen replacement therapy on the osseointergration of hydroxyapatite-coated implant in ovariectomized rats.Methods:12 weeks after ovariectomiy,each of the 20 female rats accepted 2 hydroxyapatite-coated implant screws in proximal tibiae,with and without immobilized BPs respectively on 2 sides.Half of the animals received subcutaneous injections of 17β-estradiol(E).Thus,there were 4 groups:control,estrogen (E),BPs and E + BPs.Tibiae with the implant screws were examined by μ-CT and push-out test was performed 12 weeks after implantation.Results:The bone volume ratio around screws and the percentage osteointegration in E + BPs group increased by 2.3-fold and 1.9-fold,and the push-out force by 3.3-fold respectively,compared to untreated controls.In group E the fixation of screws was also increased but less than that in group E + BPs.Conclusion:Systemic estrogen replacement therapy and locally immobilized BPs have additive effects on osseointergration of hydroxyapatite-coated implant screws in ovariectomized rats.

Objective To understand the different phenotype based on COL4A5 mutations and to analyze the correlation between mutant mRNA expression of COL4A5 gene and phenotype variability of XLAS females. Methods Skin biopsy specimens were obtained from 6 XLAS females with confirmed COL4A5 deletion mutations. Total RNA was isolated from cultured skin fibroblasts and RT-PCR was performed to amplify the fragment including the mutation sequences of COL4A5 gene. The PCR products were electrophoresed with 8% polyacrylamide gel. Each fragment of PCR product revealed under polyacrylamide gel was further analyzed with the optical absorptance (A). The A ratio of mutant over total mRNA of COL4A5 gene (total mRNA means the mutant mRNA plus normal mRNA) was analyzed with different phenotypes. Results Besides microscopic hematuria, the females often had gross hematuria and persistent and severe proteinuria when the mutant a5 (IV) mRNA expression was more than the normal. Whereas the XLAS females didn't had gross hematuria and proteinuria or had discontinuous and mild proteinuria when the mutant ?5 (Ⅳ) mRNA expression was less than the normal. The proteinuria was positively correlated with the expression ratio of mutant over total mRNA of COL4A5 gene in the females. Conclusions The quantity of the mutant mRNA expression of COL4AS gene is correlated with the phenotypic severity of XLAS females. The XLAS females with much more mutant mRNA expression of COL4A5 gene show more severe phenotypes of AS.

Objective To evaluate the diagnosis and surgical management of appandiceal mucoceles.Method The clinical data of 50 patients with appendiceal mucoceles surgically treated from January 2004 to January 2008 were reviewed retrospectively. Result The correct preoperative diagnosis rate was 8%.Eight patients were complicated with pseudomyxoma peritonei.The canceration rate was 4%.All the 50 patients recovered uneventfully after the surgery.There was no complications,no recurrence during the follow-up period,including the 2 patients with canceration. Conclusion It was difficult to make correct diagnosis of appendiceal mucoceles preoperatively.The diagnosis should always be in mind if the B-type ultrasonography indicated a cystoadenoma.Abdominal CT coupled with necessary digestive image examinations may improve the correct diagnosis rate.Some patients may be complicated with pseudomyxoma peritonei.Occasionally this abdominal mass was also associated with malignancy.Surgery is the management of choice,and the prognosis is good.

Purpose:To study the influence of chemotherapy on radiotherapy in locally advanced nasopharyngeal carcinoma. Methods:96 patients with histologically proven nasopharyngeal carcinoma in stages Ⅲ,Ⅳ were divided randomly into two groups. Radiotherapy group (48 cases) only received radiotherapy with DT66—76Gy in nasopharynx and DT50—70Gy in the neck. Chemoradiotherapy group (48 cases) received chemotherapy with cisplatin and 5 fluorouracil before the same radiotherapy as the radiotherapy only group. Results:The 1,3,5 year survival rates were 94.2%,72.9%,65.7% in chemoradiotherapy group and 89.1%,56.8 %,46.8% in radiotherapy group respectively, with significant difference between the two groups ( P

Purpose:To study the expression and clinical significance of nm23 protein in human breast carcinoma.Methods:The expression of nm23 were detected by immunohistochemical S P methods in tissue samples from 65 cases of breast carcinoma with full follow up .Their prognostic value was analyzed by Cox regression model.Results:Positive expression of nm23 was 55.4% in the 65 breast carcinoma specimens. In the total number of patients, the 5 year overall survival rate(OS) and disease free survival rate(DFS) were 63.1% and 52.3%,respectively. Expression of nm23 was negatively associated with distant metastasis( P =0.0003) and positively with DFS and OS( P =0.0034, P =0.0001). In both monovariate Kaplan Meier plot and multivariate Cox regression analysis, the axillary lymph node status and expression of nm23 were two important prognostic factors of breast carcinoma. The hazard ratios of axillary lymph node status and expression of nm23 were 3.1046 and 0.3704, respectively. Conclusions:In breast carcinoma, secondary to the axillary lymph node status, the expression of nm23 could be an independent prognosticator, which would be helpful in selecting the high risk cases for further treatment.