Objective To study the effects of Newcastle disease virus (NDV) on human leukemia in vitro. Methods The density and morphologic change of cells infected by NDV was observed. MTT assay was used to investigate the effect of NDV on the proliferation of the leukemia cells. Results The cells of the control were all regular and coarctate by inverted microscope. The effect of NDV were conspicuous in that the cells were irregular, sparsate, aggregate and fused in the experimental groups. MTT assay showed that the proliferation of SHI-1 cells were significantly inhibited by NDV with different concentration (P ＜0.01). The results also demonstrated that the difference within the concentration and the time were both statistically significant (P＜0.01). The inhibition of NDV was further confirmed in a time-concentration-dependent manner.Conclusion Newcastle disease virus can inhibit human acute monocytic leukemic cell proliferation in vitro.The safety of NDV is reliable.

It is important in Evidence-Based Medicine(EBM) that the combination of the best clinical research evidence,the doctor′s specialized skill and the patient′s desire.EBM provides a new mode for the reformation of the paediatric student teaching.Introducing EBM into the practice teaching would improve the student′s ability to analyse and solve questions.EBM adjusts the modern medical education request.It would train the ability of clinical thinking,innovation and self-education for life,develop the medical student′s general capability.

Objective To investigate the effects of a traditional Chinese medicine (TCM ) decoction on cognitive dysfunction complicated with pulmonary infection after traumatic brain injury . Methods From February 2016 to March 2017 ,80 patients with cognitive dysfunction after traumatic brain injury ,who also had lung infection at admission to our hospital ,were enrolled and randomly divided into a control group and an observation group ,with 40 cases in each. Patients in the control group received conventional treatment with antibiotics and donepezil ,and patients in the observation group were administered a TCM decoction in addition to what was given to the control group.Mini-mental state examination(MMSE)scores and pulmonary symptom scores before and after treatment as well as adverse reactions were compared between the two groups. Results After treatment ,MMSE scores were higher in the observation group than in the control group (23.88 ± 5.90 vs.20.11 ± 6.37 ,t=2.746 ,P=0.007) ,and pulmonary symptom scores were lower in the observation group than in the control group (4.39 ± 2.01 vs.6.13 ± 2.24 ,t = 3.656 ,P = 0.007 ). The total incidence of adverse reactions showed no significant difference between the two groups (P＞0.05). Conclusions The TCM decoction has clear benefits and high safety in treating cognitive impairment complicated with pulmonary infection after brain injury. It can improve cognitive ability and clinical symptoms of the lungs ,and should be recommended.