Antiviral Agents ; therapeutic use ; Female ; Hepatitis B, Chronic ; drug therapy ; Humans ; Pregnancy ; Pregnancy Complications, Infectious ; drug therapy ; virology

Objective To evaluate the value of multi-slice spiral CT in nasal endoscopic surgery.Methods The multi-slice spiral CT data of 232 patients who were scanned prior to nasal endosopic surgery were analyzed.Results The nasal and sinus disease could be diagnosed correctly with multi-slice spiral CT.The ostiomeatal complex and the channels of the frontal sinus' drainage could be showed clearly.All the manifestation of the multi-slice spiral CT was in correspondence with the endoscopy showed in the surgery.Conclusion The multi-slice CT has the advantages of short scan time,less radiation dosage and multiplanar reconstruction.So it can display the nasal and sinus structures in detail,and has a great value in guiding the nasal endoscopic surgery.

OBJECTIVE To investigate the drug resistance of pathogens in pediatric ICU and discuss how to treat infections caused by these resistant strains.METHODS After genus identification,bacterial susceptibility test was carried out using Kirby-Bauer disk method.RESULTS A total of 270 clinical isolates were analyzed including 194(72%) strains of Gram-negative bacilli and 76(28%) strains of Gram-positive cocci.From them 182(67%) strains were isolated from sputum,78(29%) strains from blood and 10(4%) strains from secretion.The most common bacilli were Klebsiella spp,coagulase negative Staphylococcus,Escherichia coli,Enterococcus spp and Pseudomonas aeruginosa.About 66.7% of E.coli and 91.1% of Klebsiella spp isolates produced ESBLs,the isolating rate of MRCNS was 83.9%.CONCLUSIONS The characteristics of pathogen distribution and drug resistance surveillance must be understood in order to use antibiotics rationally,to control the increasing trend of drug resistance pathogens and to forbid the break out of nosocomial infections.

ObjectiveTo summarize the cause of laryngeal stridor in infants in order to make accurate diagnosis and treatment of the disease.MethodsWe reviewed medical records of 297 cases of patients less than 3 year of age with the presenting symptom of stridor who were initially evaluated in the outpatient setting of otorhinolaryngological department from Jan 2005 to Jan 2010.The causes of stridor were clarified by examinations of ultrafine electronic laryngoscope,throat three-dimensional CT,and bronchoscopy in all cases.Patients underwent history-taking,physical examination and flexible laryngoscopy,CT examination or bronchoscopy evaluation in the operating room.ResultsOf all 297 patients,199 cases ( 67.0％ ) were diagnosed as congenital airway abnomalities for cause of stridor,which included congenital laryngeal abnomalities in 169(84.9％,169/199) and congenital tracheal abnormalities in 30 cases( 15.1％,30/199).Another 98 cases (33.0％,98/297) were diagnosed as acquired disease for cause of stridor.The most congenital laryngeal anomaly was laryngomalacia ( 159,94.1％,159/169 ).The most congenital tracheal abnormalities was tracheomalacia ( 14,46.7％,14/30 ).Sixty-four cases ( 65.3％,64/98 ) were diagnosed as foreign body in airway and 26 cases (26.5％,26/98) were respiratory infection,which were the first and second most common causes of acquired disease for stuidor.ConclusionCongenital airway structural abnormalities as a major cause of infant laryngeal stridor,followed by acquired disorders,including airway foreign body and infection.

AIM: To investigate the antiproliferation effects of oridonin on hepatocellular carcinoma BEL-7402 cells and its mechanisms of action. METHODS: BEL-7402 cells in culture medium were treated with different concentrations of oridonin. The inhibitory rate of the cells was measured by MTT assay. Cell apoptotic rate was detected by flow cytometry (FCM). Morphology of cell apoptosis was observed by Hoechst 33258 stain. Reverse transcriptase polymerase chain reaction (RT-PCR) and PCR-enzyme-linked immunosorbent assay (ELISA) were used to detect hTERT mRNA expression and telomerase activity before and after apoptosis. RESULTS: Oridonin could inhibit the growth of BEL-7402 cells and cause apoptosis significantly. The suppression was in both time-dependent and dose-dependent manner. Marked morphological changes in cell apoptosis including condensation of chromatin and nuclear fragmentation were observed clearly by Hoechst 33258 stain especially after the cells were treated 48-60 h by oridonin. The expression of hTERT mRNA as well as activity of telomerase decreased concurrently by treatment with oridonin in BEL-7402 cells. CONCLUSION: Oridonin has apparent antiproliferation and apoptosis-inducing effects on BEL-7402 cells in vitro, downregulation of the hTERT mRNA expression and decreasing the telomerase activity of BEL-7402 cells may be one of its important anti-hepatocellular carcinoma mechanisms.

[Objective] To investigate the effects of Yangyin Kangdu Powder (YKP) on peripheral blood T-lymphocyte subsets levels in X-ray-irradiated mice. [Methods] Forty-five mice were randomized into normal control, model and YKP groups. Except the normal group, the rats in model and YKP groups were irradiated with 6Gy X-ray to establish models with acute radiation-induced injury. Normal saline was given to the model group while YKP in the dosage of 10 g?kg-1?d-1 was orally administered to YKP group for one week. The changes of CD4 and CD8 T-lymphocyte subsets levels were detected by flow cytometry. [Results] Plasma levels of CD4 and CD8 and the ratio of CD4/CD8 decreased in the model group, the difference being significant as compared with the normal control group (P

Objective To analyze the clinical feature of pediatric severe influenza A(H1N1)cases.Methods To summarize the clinical manifestation,diagnostic and therapeutic process of eight pediatric severe influenza A(H1N1)cases.Results All eight cases couldn't provide contact history.Four cases had fundamental diseases,which were nephrotic syndrome,congenital hypothyroidism,bronchial asthma and moderate anemia.All cases had cough and fever,which was productive cough and hyperpyrexia(5 cases).All cases had tachypnea,which presented at the course of 0.5～6 days and progressively aggravated to respiratory failure 3～24 hours later.Chest x-ray showed localized exudation,which was similar to mycoplasma pneumonia.Seven cases had increased percentages of neutrophil.Six cases had increased CRP.All cases had respiratory failure;two cases were complicated with toxic encephacopathy.Treatment included anti-virus and support therapy.All cases received immunoglobulin and some cases received glucocorticoid.Six patients received mechanicai ventilation.Time of mechanical ventilation was 3～6 days.No patients died.Conclusion Pediatric severe influenza A(H1N1)case is severe pneumonia with characteristic of severe hypoxemia.Acute respiratory distress syndrome and death can be prevented through effective and in-time therapy.

Objeetive To evaluate the relationship between aspartate aminotransferase to alanine aminotransferase ratio (AST/ALT ratio) and metabolic syndrome in college students.Methods Anthropometric and metabolic measurements including fasting plasma glucose (FPG),triglyceride (TG),high-density lipoprotein cholesterol (HDL-C),true insulin (TI),(AST and ALT) were assessed in a crosssectional study of 425 college students aged 19 to 24 years old (male 216,female 209) in 2009.The participants were then assigned to the AST/ALT ratio ＜ 1 group or the AST/ALT ratio ≥ 1 group.Metabolic syndrome was defined as Adult Treatment Panel Ⅲ criteria.Results AST/ALT ratio ＜ 1 was found in 146 subjects (34.4％).After adjustment for age and sex,AST/ALT ratio showed a positive correlation with HDLC (r=0.125) and negative correlations with body mass index (BMI,r=-0.281),waist circumtance (WC,r =-0.264),TG (r =-0.134),TI (r =-0.118) and HOMA-insulin resistance (HOMA-IR,r =-0.121) (all P ＜0.05).The prevalence of metabolic syndrome was 2.1％ and was similar in males and females (2.3％ vs.1.9％,P =0.774).Those with AST/ALT ratio ＜ 1 had a significantly higher prevalence of metabolic syndrome (4.8％ vs.0.7％,P =0.016).After adjustment for age,gender and BMI,the prevalence of metabolic syndrome of subjects with AST/ALT ratio ＜ 1 was nearly 7 (95％ CI:1.430 to 34.019,P =0.016) times of those with AST/ALT ratio ≥ 1.Conclusion AST/ALT ratio may be related with metabolic syndrome in college students.

Objective To analyze the epidemiological and clinical characteristics of an outbreak of tsutsugamushi disease in Fuyang City of Anhui Province.Methods Epidemiological information was collected by case investigation questionnaire of tsutsugamushi disease.Diagnosis was determined by the detection of OXK antigen by Weil-Felix test.Results Seventy-eight cases with tsutsugamushi disease were discovered in the outbreak.All the patients had an experience of working in this area before the starting of symptoms.The clinical features of the patients were fever,headache,skin eschar,tetter and lymphadenectasis.No severe complications occurred in each patient.All the patients recovered after getting deoxycycline.Conclusions This was the first report for the tsutsugamushi disease occurred in Fuyang City of Anhui Province.And the declaration for the new happened tsutsugamushi disease would provide strong support evidence for the prevention and control of this event and ensure the safety for working in this area.Also the deoxycycline was very effective for the treatment of tsutsugamushi disease.

Objective To investigate the removal effect of immunoadsorption (IA) on associated antibodies and the efficacy in late-onset myasthenia gravis (MG). Methods A total of 25 late-onset MG patients were randomly selected to enroll in this study. IA therapy was given to 10 patients (IA group), while immunoglobin (0.4 g·kg-1·d-1) was administrated to the other 15 patients for 5 days(Ig group). The titers of Titin antibody (Titin-ab), acetylcholine receptor antibody (AchR-ab) and presynaptic membrane antibody (PrsmR-ab) were detected before and after the treatment. Quantitive MG (QMG) score was assessed before and immediately after the entire course of treatment. The clinical efficacy, the duration of respiratory support and in-hospital were compared between two groups. The correlation between three antibodies and QMG score was also analyzed. Results Compared with that before treatment, the Titin-ab PIN values, the AchR-ab PIN values, and the PrsmR-ab P/N values of IA group were all decreased significantly after treatment (P<0.05, respectively). The P/N value of Titin-ab in IA group was decreased by 54.7%～3.5%, which was significantly higher than that in Ig group(19.9%±3.1%) (P<0.01). QMG score reduced by 42.4%± 4.2% and 23.8%±3.7% in IA group and Ig group respectively (P<0.01, respectively). Symptoms were effectively ameliorated by both treatments, but the effective power of IA group was higher than that of Ig group (70% vs 40%, P<0.05). Remission time of IA group was significantly shorter than that of Ig group [(5.38±0.42) d vs (8.4±1.54) d, P=0.008), so was the duration of in-hospital [(13.50±0.50) d vs (16.50±0.50) d, P<0.05). The number of respiratory support in IA group was less than that in Ig group (1/10 vs 6/15, P<0.05). By the Pearson correlation analysis, the decrease of Titin-ab showed a better longitudinal correlation with the decrease of QMG score than the other two antibodies (r=0.6315, P<0.01). Conclusion IA can rapidly and effectively clear the pathogenic antibodies of late-onset MG patients and its short-term clinical efficacy is better than immunoglobin.