Origin of lymphoma stem cells is very complicated,it is proposed that committed lymphoid progenitor/precursor cells(CLP)with V-D-J recombination are stem cells of follicular lymphoma(FL)and mantle cell lymphoma (MCL).Conversely,B lymphocytes within the germinal center as the diffuse large B-cell lymphoma (DLBCL)and sporadic Burkitt lymphoma (BL)stem cells.An alternative model supports an epigenetic modification of genes as the first occurring hit,which leads to retaining stem-cell features in hematopoietic cells, followed by secondary chromosomal translocations that eventually transformed into lymphoma.Isolation and characterization of the different B-cell non-Hodgkin lymphomas will provide critical insights into the disease pathogenesis and will represent a step towards the development of more effective therapies.

Myeloid leukemias are clonal disorders originating from a primitive multipotential hematopoietic cell and characterized by aberrant proliferation, differentiation and maturation of leukemic progenitors and precursor cells. Studies have identified sub-populations of leukemic cells possessing different functional capabilities. Hypothesis hold that the heterogeneity is mainly due to leukemia stem cells (LSC). Data from the past decade implied that LSC has impact on the care of myeloid leukemias. The history of LSCs and the more recent data of the origin, immunophenotype, frequency and self-renew ability of LSCs are reviewed.

Neonatology probation teaching is one of the difficulties in eight-year program pediatric teaching.There are some problems in the neonatology probation teaching,including partial comprehension of neonatal basic theoretical knowledge,few opportunities of clinical operations and observation,lack of effective physician-patient communication method,defective mastering of neonatal clinics skills.In order to refine the neonatology probation of eight-year program medical students and to improve the quality of hospitals' clinical teaching,an appropriate neonatology clerkship program of eightyear medical students should be investigated.A variety of teaching methods should be applied to enhance students' interest of learning the basic theory.Before entering the neonatal ward,it is necessary for eight-year program medical students to understand the workflow and a standard appraisal system should be established.At the same time,it is essential to strengthen the training of their interpersonal communication skills,clinical thinking and clinical skills.Finally,a standard out-department examination system should be established to evaluate the eight-year program medical students' neonatology learning effect objectively.

Objective To study the effects of panaxydol(PND) upon neurotrophic factors(NTFs) expression in Schwann cell,and to further reveal the mechanisms that underlie these effects. Methods Schwann cells were treated with PND of different concentrations in the culture medium.NTFs expression was examined through immunoiistochemistry assay.The intracellular cAMP level was assessed by radioimmunologic assay. Results There was an increase in NGF expression after PND treatment within the range of 2.5-20.0?mol/L(P

OBJECTIVE:To analyze the utilization and variation tendency of oral hypoglycemic agents in Wuhan area,and to provide reference for drug selection and enterprise production and sale. METHODS:The utilization of oral hypoglycemic agents in 34 hospitals from Wuhan area during 2011-2013 was analyzed statistically in respects of consumption sum,DDDs and DDC etc. RESULTS:The consumption sum and DDDs of oral hypoglycemic agents increased by 20% and 7% respectively year by year. Acarbose had a market share of over 40%. The drug use frequency of metformin ranked the second place only to acarbose. DPP-4 inhibitor had a promising future,with a consumption sum proportion of more than 10%,while the market share of traditional Chi-nese medicine had fallen below 3%. Except for repaglinide,gliclazide,glimepiride,Xiaoke pills,etc.,the selling of other medica-tions are consistent with the user. CONCLUSIONS:The utilization of oral hypoglycemic drugs is basically rational in 34 hospitals from Wuhan area during 2011-2013.

According to the programming characteristics under the SOC embedded environment,the dynamic auto-adapted bit stream technology,the intelligent interception technology,and the tele-control technology are utilized to realize the real time network communication of medical video with a variable bit stream from 1M to 4M as well as the tele-control of multiple communication protocols such as TCP,UDP and Multicast.

Heme oxygenase(HO) is a rate-limiting enzyme that catalyzes heme degradation.It catabolizes heme into 3 products: carbon monoxide(CO),free iron and bilirubin,which play an important role in keeping the steady state of the organism.In recent years,some studies show that the promotion of HO-1 expression can reduce ischemia-reperfusion injury of an organ transplant and regulate the transplantation immunological rejection.It has an important application prospect in liver transplantation.

Pediatric head injury is the leading cause of death and disability,about 40% to 60% of kids of head injury get a CT,and the majority are those with minor head injury,about 10% of these CT scans are positive.Clinical decision rules for pediatric head injury exist to identify children at risk of traumatic brain injury.Those of the highest quality are children's head injury algorithm for the prediction of important clinical events(CHALICE),Pediatric Emergency Care Applied Research Network(PECARN)and the Canadian as-sessment of tomography for childhood head injury(CATCH)clinical decision rules.This review aimed to systematically introduce primary clinical decision rules for children with minor head injury and compare them for diagnostic accuracy in detecting intracranial injury and injury requiring neurosurgery.

Objective:To observe the effectiveness and security of piperacillin sodium/sulbactam sodium in the treatment of bacte-rial infections and perform the pharmacoeconomics evaluation. Methods: Totally 126 patients with hand trauma bacterial infections were divided into the control group and the treatment group. The control group was given piperacillin sodium/tazobactam sodium 2. 5g, ivd, bid, while the treatment group was treated with piperacillin sodium/sulbactam sodium 1. 25g, ivd, bid. After 14-day treatment, the clinical therapeutic effect and adverse reactions of the two groups were observed, and the cost-minimization analysis was carried out. Results:The effective rate of the treatment group was 93. 65%while that of the control group was 92. 06%(P>0. 05). The bac-terial clearance rate of the treatment group was 96. 83%while that of the control group was 95. 24% (P>0. 05). The incidence of ad-verse reactions of the treatment group was 4. 76% (3/63) while that of the control group was 9. 52%(P>0. 05). The cost-effective-ness of piperacillin/sulbactam was significantly lower than that of the control group (P<0. 05). Conclusion: The effectiveness and safety of the two groups show no obvious differences in the treatment of hand trauma bacterial infections, and both have good antibacte-rial effect with low incidence of adverse reactions. For the better economic benefits, piperacillin /sulbactam is worthy of promoted ap-plication.

Next-generation sequencing (NGS) platforms have recently evolved to provide an accurate and comprehensive means for the detection of molecular mutations in acute myeloid leukemia(AML).The 54th ASH annal meeting reported lots of studies on NGS in AML,reflect the important role of the NGS technology in modern diagnosis and treatment of blood diseases and the impact on the future development of the blood disease.