The article makes a tentative practice to specialized English teaching for postgraduates from teaching content,pattern and evaluation system,and concludes some useful experience on how to enhance their Language ability under the background of international academic communication.

The new,rapid,accurate and convenient tests for tuberculosis diagnosis and drug resistance are urgently needed for effective tuberculosis control.In this review,two novel,inexpensive diagnosis methods of active TB were introduced.They can detect tuberculosis disease and drug resistances directly form sputum specimens and might have greater applicability in developing countries.Several concerns about the research and development of innovative diagnosis technology in our country also are described.

Mycoplasma pneumoniae (MP) is the most common pathogens of community-acquired pneumonia in children.Macrolides are the first-line antibiotics for mycoplasma pneumoniae pneumonia (MPP) treatment.However, in recent years, with macrolide resistant MP (MRMP) becoming prevalent, refractory MPP (RMPP) and fulminant MPP (FMPP) increased significantly.It has become a hot issue for clinicians.This paper reviewed the recent studies on MRMP, RMPP and FMPP, discussed the diagnosis and treatment options for MRMP, RMPP and FMPP in detail.Prioritizing the selection of sensitive antibiotics and early initiation of effective antibiotic therapy, appropriate use of immunoregulatory and anti-inflammatory therapies, and aggressive treatment of complications and co-infections are the keys to RMPP and FMPP therapy.

Purpose To investigate the expression of Lgr5 in cervical squamous cell carcinoma (CSCC) and its significance.Methods Lgr5 protein expression was evaluated by immunohistochemistry of EnVision two-step in 83 paraffin-embedded CSCC specimens,56 normal cervical tissues specimens and 32 cervical intraepithelial neoplasia (CIN) specimens.The expression of Lgr5 mRNA was evaluated by RT-PCR in 13 pairs of surgically removed CSCC and adjacent normal cervical tissues.The correlation between Lgr5 expression and clinicopathological features were statistically analyzed.Results The positive proportion of Lgr5 protein in CSCC tissues was significantly higher than those in adjacent normal cervix (P ＜ 0.01) and CIN (P ＜ 0.05).The expression of Lgr5 in CSCC tissues was associated with grade of tumors (P ＜ 0.01) and depth of invasion (P ＜ 0.05),but not associated with age,tumor size,clinical stage and lymph node metastasis (P ＞ 0.05).Kaplan-Meier analysis showed that the 5-year survival rate of patients with Lgr5 overexpression was significantly lower than that of patients with lower expression (P ＜ 0.01).Conclusion The expression of Lgr5 in CSCC tissues may associated with grade of tumors and depth of invasion and may be involved in initiation and development of CSCC,and it may be a new assistant marker for prognosis of CSCC.

Objective To explore the effects of enalapril on spatial learning and memory,and to identify synaptophysin expression in hippocampus of streptozotocin-diabetic rats.Methods Forty rats were randomly divided into control group,diabetic model group and the enalapril treatment group.Streptozotocin-diabetic rat model was developed.The diabetic rats were treated with enalapril for 12 weeks.Then,the learning and memory abilities of rats were tested with Morris water maze;mRNA and protein expression of synaptophysin in hippocampus was detected by RT-PCR and immunostaining.Results Compared with diabetic model group,the enalapril treatment group showed a significant decrease in the mean time of escape latencies(P

Community-acquired Pseudomonas aeruginosa bacteremia in children is uncommon but often fatal.Fever,diarrhea,dyspnea or tachypnea are the most common initial symptoms.Ecthyma gangreno-sum is the characteristic skin lesion of Pseudomonas aeruginosa bacteremia.Complicated with shock,respira-tory failure,multiple organs dysfunction and inappropriate initial antimicrobial therapy are the risk factors for mortality.The key to early diagnosis is to obtain blood culture as soon as possible and early recognition of the characteristic skin lesion.For suspected cases,it is advisable to cover for Pseudomonas aeruginosa sepsis with anti-Pseudomonas antibiotics.

To better understand the current status of medical students in clinical medical ethics,we design the relevant questionnaire,with 468 medical students conducting a questionnaire survey.Findings in general are more satisfactory.but there are great differences on certain issues.Educational Strategies:medical education curriculum should open more humanities courses and post-clinical teachers should pay close attention to ethics education for medical students.

In Oct 2010,American Heart Association (AHA) released new guidelines for pediatric basic life support and pediatric advanced life support.The new AHA guidelines are based on an extensive review of thousands of resuscitation studies by experts who reached a consensus over a 3-year period.Compared with the 2005 AHA guidelines for pediatric basic and advanced life support,the new guidelines made major changes on some key issues,including the change of basic life sequence from A-B-C to C-A-B,high-quality chest compression,defibrillation and the use of automated external defibrillator in infants,medications during resuscitation,resuscitation of children with congenital heart disease,post-resuscitation management and evaluation of sudden cardiac death victims.This paper summarized the substantial changes and the reasons to change.

Nutrition support,including parenteral nutrition and enteral nutrition,has been one of the important treatment for critical illness in children.The risk of nutrition support attracts more and more attention.The complications of nutrition support include nutrition support access associated mechanical injuries,catheter related bloodstream infection,enteral nutrition intolerance and metabolic complications.Most of these complications are preventable.The most effective prevention is evaluating and controlling the risk factors.Prevention and treatment of the complications is the key of successful nutrition support and improving the prognosis.

Objective To understand the residual risk of transfusion blood donation in the native region and to conduct the sim-ple comparison of Roche diagnostic company′s first generation and second generation nucleic acid combined detection reagents . Methods The menstrual blood specimens qualified by the routine test in this center (serology test and enzyme immunodetection as-say results were negative) from May to July 2013 were selected and performed the 6-specimen mixed sample test by adopting the Roche Diagnostics company′s first-generation and second-generation nucleic acid combined detection reagents in the United Roche COBAS s 201 operating system ,if the test had the reactivity ,the nucleic acid identification tests and other complementary serologi-cal testing were performed .Results 9 417 specimens were detected ,8 cases of nucleic acid positive were screened out with the posi-tive rate of 0 .85 ‰ ,through the detection of nucleic acid identification reagents ,4 specimens were confirmed as positive for HBV nucleic acid ,1 case was positive for HCV nucleic acids and the rest 3 cases of uncertain HBV-positive .In addition ,with the first generation reagent (reference reagents) as the relative standard ,the second generation reagents (assessment reagent) had the over-all positive coincidence rate of 66 .67% ,the negative coincidence rate of 99 .98% and the total coincidence rate of 99 .96% .In addi-tion ,no HIV nucleic acid positive specimens was found by the nucleic acid test .Conclusion The nucleic acid detection technique can effectively shorten window period,further improve the safety of blood transfusions ,at the same time the overall conformance situ-ation of the Roche′s first-generation nucleic acid combined detection reagents and the second generation combined detection reagents is good ,but there are still lesser differences in the detection of HBV .