Brain injury is a significant cause leading to death of neonates with a considerable variety of complications.Up to now researches have found the neuroprotective actions of erythropoietin (EPO) originally identified as erythropoiesis on neonatal brain injury.EPO has been reported to induce a broad effect in the brain directed to protect and repair neurons damage which are likely to contribute to the improvement in long-term neurological functional outcomes.EPO may provide a new approach for promoting survival and growth in nerve cells and hold great promise for the future treatments of neonatal brain injury.EPO and EPO receptor distribute in defferent parts of brain in fetus and newborns.A fundamental mechanism of EPO-induced neuroprotection is its ability to inhibit apoptosis that EPO and EPO receptor have been shown to modulate three cellular signal transduction pathways.The other neuroprotection mechanisms of EPO-induced include anti-infammatory,neurotrophy,anti-oxidation,angiogenesis,promoting neurogenesis and anti-epilepsy.

In order to make use of gerbils as a kind of experimental animal in Kunming, the Mongolian Gerbilis were indroduced into laboratory of KMC from Beijing for two years, and performed the management and breeding. This paper summarized the authoris experieuce of mating, breeding. diet regimen, house cleaning, care of the pregnant and newborn. The data of body weight measured in relation to the age were also presented.

The repair of ancient books as an important element in the protection of ancient books,has been attached great importance in China ever since.At the sairle time,the work is facing with heavy tasks,emergent time,and lack of professional personnel.Besides,due to being emphasized too much on the experience of traditional handiworks for all the time,the work is absence of modern research,theoretical conclusion,scientific standardized management,and fund supporting.All these problems need to be solved rationally.

AIM:To observe the influences of artesunate(AS)on murine bone marrow hematopoietic stem and progenitor cells.METHODS:Murine bone marrow hematopoietic stem and progenitor cells were cultured in vitro with different concentration of AS.The numbers of erythrocyte colony-forming unit(CFU-E)or burst-forming unit(BFU-E)in liquid or semisolid culture were counted through light microscope.Apoptosis of cultured cells and the changes of mitochondrial membrane potential were detected by flow cytometry(FCM)analysis,meanwhile,DNA ladder gel electrophoresis were conducted.RESULTS:AS could significantly inhibit the formation of CFU-E and BFU-E(P

OBJECTIVE:To analyze the results of Procurement System implementation in Ningxia Rural Areas.METHODS:Typical sampling method selected 4 township hospitals of Xiji county and Pengyang county in Ningxia as a sample,through qualitative and quantitative methods to design the questionnaire and interview outline.RESULTS & CONCLUSION:during 06～08 years,the actual bidding variety of rural drugs accounted in Ningxia move gradually decreased the percentage of species;township hospitals in drug revenues decreased year by year the proportion of total income;drugs out of stock is serious;drugs are few,temporarily not bidding drugs are in high price;common drugs bidding directory is small;rural health room staff are paid lowly.Recommendating to establish a sound procurement system to make it better.

Objective This study discusses the role of case-based learning (CBL) in the development of common competency in medical students.Methods One hundred and twenty-one students of Grade 2013 and Grade 2014 majoring in clinical medicine were divided into study (Grade 2014:63 students) and control (Grade 2013:58 students) groups.The study group was composed of 5 teams,with 12 or 13 students in each team.CBL and traditional lecture-based learning (LBL) were applied to the study and the control groups respectively.After the courses,a questionnaire with 10 indicators of medical students' common competency was scored by the students.The scores were entered into SPSS 19.0 for two independent-samples t-test.Results The effective questionnaire recovery rates for the study and the control groups were 92.1％ and 98.3％ respectively.For the medical students' post competency index,students in the study group scored significantly higher than those in the control,with knowledge mastery,study interest,learning initiative,independent learning,problem analyzing,problem solving showing the following scores,respectively:(5.57 ± 0.77),(5.28 ± 1.01),(5.16 ± 0.91),(5.05 ± 1.05),(5.10 ± 0.89),and (5.09 ± 1.01),compared to those in the control showing the following scores,respectively:(5.14 ± 0.99),(4.82 ± 1.12),(4.75 ± 1.07),(4.46 ± 1.09),(4.70 ± 1.03),and (4.68 ± 0.97),and the differences were statistically significant (P＜ 0.05).Besides,students in the study group performed much better in communication,collaboration,information collection,or critical thinking than those of the control (P＜0.05),with scores in the study group showing (4.97 ± 1.08),(5.33 ± 0.94),(5.21 ± 0.97),and (4.98 ± 0.96),respectively and those in the control (3.93 ± 1.16),(1.95 ± 0.85),(2.21 ± 0.98) and (2.12 ± 0.91),respectively,and the differences had statistical significance.Conclusion CBL can promote the early development of medical students' common competency during basic medical education and compared to the traditional LBL,teaching in smaller teams is much better in ability training.

Objective To investigate mRNA expression of matrix metalloproteinase (MMP-9) and tissue inhibitor of metalloproteinase (TIMP-1) in ectopic endometriosis tissue and uterine endometrium from women with and without endometriosis. Methods Thirty-eight women with endometriosis (Revised American Fertility Society classification, RAFSⅠ-Ⅳ) were selected as study group. Thirty-eight specimens of ovarian endometrioma(ovarian chocolate cysts, OCC), 16 red peritoneal endometriotic lesions(RPL), and 35 matched eutopic endometrium(Eu) were collected from them simultaneously at the time of surgery. Twenty specimens of endometrium from reproductive women undergoing laparoscopic surgery without endometriosis were obtained as control group. The mRNA expressions of MMP-9 and TIMP-1 were detected by reverse transcription polymerase chain reaction (RT-PCR). Results Expression of TIMP-1 mRNA was detected in all samples. The level from endometriosis patients and control group was similar(2.31?1.21, 2.40?0.89). However, ectopic endometrium expressed significantly fewer TIMP-1 mRNA(OCC 1.67?0.79, RPL 1.45?0.68)compared with eutopic endometrium from both endometriosis and endometriosis-free patients(P

Objective To investigate and compare the special psychologic characteristics of the post-traumatic epilepsy patients and their spouses.Methods The complete clinical data of 244 patients and their spouses were retrospectively and constractively analyzed. There were two distinct groups because of the etiology: group A including 122 patients of post-traumatic epilepsy and their spouses, and group B including essential epilepsy. Symptom Checklist-90 (SCL-90), Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD) were used to evaluate the psychologic status of objects.Results All of the single-item score of SCL-90 were significantly higher than the China norm (P<0.01) in both groups, and the score in group A was higher than that in group B. But the characteristics of the abnormal data were diffierent in patient from in spouse. The scores of the post-traumatic patients were higher than that of the spouses in 3 items, and lower in 5 items. Specially the depression and anxiety emotion of the spouses were more obvious than the patients in group A (P<0.01).Conclusion Both the patient and spouse have the conspicuous psychosomatic disorder, and the appearance is diffierent from each other. The psychosomatic disorder of post-traumatic epilepsy patient and spouse is more conspicuous than the essential epilepsy.

Objective To explore intervention effect of retinoic acid(RA) on hyperoxic lung fibrosis in neonatal rat,and to observe the role of transforming growth factor-?1(TGF-?1)and ?-smooth muscle actin(?-SMA)in hyperoxic lung fibrosis.Methods The SD neonatal rats were randomly divided into 4 groups:air-exposed control group(group Ⅰ),air-exposed and RA-treated group(group Ⅱ),hyperoxia-exposed control group(group Ⅲ),hyperoxia-exposed and RA-treated group(group Ⅳ).The rats of group Ⅲ,Ⅳ were kept in chambers containing 850 mL/L oxygen,the other 2 groups were exposed to air.The rats of group Ⅱ,Ⅳ were intraperitoneally injected with RA [500 ?g/(kg?d)],group Ⅰ,Ⅲ were intraperitoneally given the same dose of oleum lini.At the end of exposure,the lung histophatholoical changes and radical alveolar counts(RAC) were observed by HE staining under light microscope,the degree of pulmonary fibrosis was evaluated by Masson trichrome method and fibrosis score.The protein expression of TGF-?1 and ?-SMA were determined by immunostaining.Results At 14 d of exposure,group Ⅲ resulted in a significant increase in fibrosis score and expressions of TGF-?1 and ?-SMA compared with group Ⅰ,Ⅱ and Ⅳ(Pa0.05).Conclusion TGF-?1 and ?-SMA may have important role in hyperoxic induced lung fiborsis injury,the earlier period intervention of RA can reduce lung fibrosis regeneration and exceptional alveolus development.

Objective To construct an eukaryotic recombinant plasmid with HGFSP, a hybrid gene encoding the antigen epitopes of MSA1, MSA2, RESA and CSP in different developing stages of Plasmodium falciparum(P.f. ). Methods HGFSP was sub-cloned into an eukaryotic expression plasmid pcDNA3 from a prokaryotic recombinant plasmid pSK-HGFSP to construct the eukaryotic recombinant expression plasmid pc-HGFSP. The identified recombinant was then transfected into HepG2 cells with liposome-mediated method. The G418-selected positive cell clones were tested to identify the immunogenicity of HGFSP-expressing antigen. Results It was evidenced that HGFSP was correctly inserted into pcDNA3 by restriction enzymes map analysis. HGFSP-expressing antigen-specific fluorescent response was observed in pc-HGFSP-transfected HepG2 cells. The results of SDS-PAGE and Western-blotting showed that there was a 23 kD protein band, which can be specifically recognized by anti-sera of HGFSP-expressing protein in pc-HGFSP-transfected HepG2 cell lysis. Conclusion Pc-HGFSP, an eukaryotic recombinant plasmid encoding hybrid antigen epitopes of P.f ., was constructed successfully and the antigenicity of pc-HGFSP-expressing protein was confirmed.