Objective: To investigate the role of recombinant human hematopoietic growth factors(HGFs) in expansion of purified CD34+ cells derived from human cord blood.Methods: A sterilized separation system for purification of CD34+ hematopoietic stem / progentior cells(HSC/HPC) was established by means of StemsepTM according to the strategy of negative selection on immunomagnetic separation.CD34+ cells were expanded with various combination of cytokines in a 21-day liquid culture systems.Results: A combination of seven HGFs including FL,Tpo,SCF,IL-3,GM-CSF,G-CSF and Epo was identified as the most potent combination of those tested,and it increased total nucleated cell by 1627.57?52.93 fold,total progenitor cells(CFCs) by 56.78?8.13 fold and CD34+ cell by 41.09?4.11 fold,respectively.Among the HGFs examined,FL and Tpo were the most potent ones for expanding cord blood CD34+ cells.Maximal expansions of CFCs and CD34+ cells were observed during the first two weeks of culture.Conclusion: Under conditions of appropriate HGFs combination and expansion duration,it is possible to expand cord blood CD34+ cells ex vivo for transplantation and therapeutic gene transfer.

Objective To investgate the signal transduction and regulation in erythropoiesis by total saponins of Panax ginseng(TSPG) to clarify the mechanism for Panax Ginseng promoting hematopoiesis.Methods The colony-forming ability of mononuclear cells(MNCs) from human umbilical cord blood was assayed in methylcellulose assay systems,various dilutions of TSPG(0,10-100mg/L) were then added to each methylcellulose culture mixture;MNC proliferation in response to erythropoietin(Epo) was measured by MTT;To investigate whether the preferential differentiation of MNCs into erythroid lineage cells was caused by an increase in the expression of erythropoietin receptor(EpoR) on the cells,immunoblotting analyses were performed;Immunoprecipitation of JAK_2/STAT_5 was used for the effect of TSPG on Epo/EpoR-induced tyrosine phosphorylation of JAK_2/STAT_5. Results 1.TSPG(10-75mg/L) can promote the colony formation of BFU-E,CFU-E,and the preferential differentiation into erythroid lineage cells was induced from 25mg/L of TSPG;2.Using the colorimetric MTT assay,MNCs exhibited proliferous responses to Epo(2?10~3-5?10~4IU/L) reaching maximum at 5?10~3IU/L Epo;3.The addition of TSPG did not increase the expression of EpoR;4.After MNCs were incubated in the presence of with or without TSPG for 24 h,the cells were stimulated with Epo for 0,2,5,30min,and tyrosine phosphorylation JAK_2/STAT_5 was measured.The pretreatment with TSPG enhanced Epo-induced tyrosine phosphorylation of JAK_2 and STAT_5(STAT_(5a) and STAT_(5b)).Conclusion In the present study,we have shown that the Epo/EpoR-mediated signals are enhanced,and JAK_2/STAT_5 signals plays an essential role in the effect of TSPG on erythropoiesis,whereas the expression level of EpoR remains unchanged.

BACKGROUND: Migraine is usually located in the course of Shaoyang channel, and the curative effect of treatment with methods of treating Shaoyang disease by dispersing and dispelling wind (DW) as well as relieving pain (RP) on migraine is prominent, but how about the effects of these two ways on thrombogenesis in vitro and the function of platelet aggregation (PA)?OBJECTIVE: To probe into the effect of treatment of Shaoyang disease and methods of DW and RP on thrombogenesis in vitro and function of PA throughthe experiments of thrombogenesis in vitro and function of PA in rats, and investigate the compatible significance of DS and DW as well as RP through formula compatible experiment.DESIGN: Completely randomized grouping design and controlled trial.SETTING: Department of Prescription, College of Basic Medical Sciences,Heilongjiang University of Chinese Medicine.MATERIALS: The experiment was conducted in the Laboratory of Department of Prescription, Heilongjiang University of Traditional Chinese Medicine from March to August 2000. Sixty healthy adult Wistar rats were randomly divided into 6 groups: Normal control group, Shaoyang treatment group (group Ⅰ ), DW and RP group (group Ⅱ ), high-dose and whole-prescription group (group Ⅲ), low-dose and whole-prescription group (group Ⅳ), and positive control group with 10 rats in each group.METHODS:① Positive control group:Gastric perfusion of 0.034 g/mL compound divaside slice suspension (made by Harbin Second Biochemical Pharmacy co., Ltd) was given to rats (0.39/kg); Group Ⅲ and Ⅳ (ingredients: Chaihu 20 g, huangqin 10 g, banxia 15 g, gancao 10 g, chuanqiong 20 g, tianma 15 g, xixin 5 g, quanxie 5 g, wugong 5 g): Gastric perfusion of 1.5, 0.75 g/mL of complete prescription was given to rats (17.40, 8.70 g/kg);Group Ⅰ (ingredients: Chaihu 20 g, huangqin 10 g, banxia 15 g, gancao 10 g) and group Ⅱ (ingredients: Chuanqiong 20 g, tianma 15 g, xixin 5 g, quanxie 5 g, wugong 5 g): Gastric perfusion of 0.75 g/mL agents of treatment with DS and DW wind antidyne was given to rats as 8.70 g/kg; Normal control group: Gastric perfusion of normal saline of the same volume wasgiven to rats.Intervention on rats of all groups lasted 12 days.② Experiment of thrombogenesis in vitro: The cephalic artery of one side was seperated 2 hours after the last time of administration. The distal part was deligated, the blood current in proximal part was blocked with bulldog clamp and the arterial cannula was inserted into the cephalic artery. Loosened the bulldog clamp, blood of 1.8 mL was collected and put into the rotary ring of thrombogensis meter to rotate for 15 minutes at 17 r/min,and then poured the thrombus, measured the length and humid weight of thromb. After that,dried the humid thromb and measured the dry weight.③ Determination of PA:The packing fraction (PF) in the 1st and 5th minutes as well as the maximal packing fraction (MPF) and assembling inhibition ratio of platelet-rich plasma within 5 minutes were recorded with test.MAIN OUTCOME MEASURES: Effect of treating Shaoyang disease nephelometry.④ Differences of measurement data were compared with tand methods of DW as well as RP on thrombogenesis in vitro and the function of PA.RESULTS: A total of 60 rats were involved in the analysis of results. ①The length, humid weight and dry weight of thrombogenesis in vitro in group Ⅲ and Ⅳ, positive control group and group Ⅱ were obviously lower than those in group Ⅰ (P ＜ 0.05). ② The PF in 1st, 5th minute and the maximal aggregathe normal control group (P ＜ 0.05-0.01); The humid weight and dry weight of thromb in group Ⅳ were significantly lower than those in tion (MA) of blood platelet in rats of each group were significantly lower than those in the normal control group (P ＜ 0.05-0.01), and the curative effect on rats in the positive control group, group Ⅲ and Ⅳ as well as group Ⅱ were better than that in group Ⅰ.CONCLUSION: There are no significant effects of dispersing thrombogenesis in vitro and inhibiting PA by only treating Shaoyang disease. The effect of combined prescription of DW and RP as well as treatment of Shaoyang disease are obviously enhanced.

The deletion of tumor suppressor gene PTEN's expression was familiar in many tumors, including prostate cancer. The guide would be given in the diagnosis, therapy and prognosis of prostate cancer by studying about PTEN's tumor suppression mechanism and relation with expression deletion. This review makes an overview focusing on the recent progress of PTEN's structure, function, expression deletion, and the correlation between PTEN and prostate cancer.

The concept of golden mean (Zhong Yong), i.e. moderation, is the highest principle of moral cultivation in Confucianism. It entails an exclusive methodology in addressing politics, philosophy and everything in the universe. This concept has permeated into all aspects of traditional Chinese culture. As an ancient therapy, tuina is an important part of Chinese medicine and has its characteristic theory and methods. Just like Chinese medicine, tuina has long been greatly influenced by the concept of golden mean. To better promote the development of tuina, it’s necessary to investigate the historical evolution of tuina and the concept of golden mean as well as the influence of ‘golden mean’ idea on tuina manipulation, mechanism and treatment.

Objective To investigate the anti-tumor effects of combined recombinant murine interleukin-12 and GM-CSF gene adenovirus vector(AdCMVIL-12,AdCMVGMCSF) on B16 melanoma.Methods B16 melanoma cells were injected subcutaneous at right back of C57/BL6 mice,48 tumor bearing mice were divided into 4 groups at random,when tumor diameter attained to 5 mm,AdCMVIL-12,AdCMVGM-CSF and AdCMVIL-12+AdCMVGM-CSF and AdCMVLacZ(control) were injected in different groups,tumor growth and immune responses of each group were tested,and the IL-12 and GMCSF levels in serum were observed.Results In combined group,necrosis, lymphocytes and macrophages were found in tumor tissues.30 d after treatment,the average volume in combined group was(60.73?11.36)mm~3, compared with AdCMVLacZ(control) group,and AdCMVIL-12 group,AdCMVGM-CSF group [(675.18?80.59),(186.91?19.15),(223.45?23.11)mm~3],there were significant differences(P

Objective:This article collected, organized, and summarized the medical literatures of cupping therapy from three major Chinese databases including China National Knowledge Infrastructure (CNKI), Chongqing VIP (VIP), and WanFang, with cupping, moving cupping, flash cupping, pricking cupping, or medicinal cupping as the retrieve title or key words, and the retrieve range was from 1953 to July 15, 2015. This article was to give an overall review of cupping therapy from the clinical application and mechanism research based on its application form, indications, and mechanism research progress. The results showed that there are various types of cupping methods; its indications cover multiple subjects such as internal medicine, external medicine, gynecology and pediatrics; and its major action mechanisms include negative pressure suction, increasing pain threshold, promoting dermal blood flow and improving body immunity.

MOOC is a new online teaching model. Learners complete the course of study through on-line autonomous learning, communication with others, receiving system assessment and evaluation. In medi-cal imaging teaching, the combination of MOOC and traditional classroom teaching is a new way of med-ical imaging teaching reform. It will be beneficial to integration and making full use of high quality teaching resources, which plays an important role in the discipline development and the teaching quality improve-ment.

0.05).Conclusion VAMT is as effective as VATS,whereas it can achieve a shorter operation time.

Objective To obeserve the effects of acute hypervolemic hemodilution(AHH) with hypertonic .sodium chloride hydroxyethyl starch 40(HSH 40) on hemodynamics and fluid balance in patients under general anesthesia.Methods Fifty patients undergoing radical surgery for gastral cancer under general anesthesia were randomly divided into 2 groups with 25 patients each.Acute hypervolemic bemodilution (AHH) was performed with HSH 40 6 ml/kg in group A or with hydroxyethyl statch(HES) 6 ml/kg in group,which was infused within 30 minuts.HR,MAP,CVP were recorded before(T_0),at 30 min (T_1),60 min (T_2) after infusionand and the end of operation (T_3).The amounts of bleeding,HSH 40 and HES and urine output were recorded as well.Results There were no significant diferences in HR and MAP between two groups at all time points.CVP was sighificantly higher at T_1-T_3 than that at To in two groups.The urine output was more in groups A than that in group B(P<0.05).Conclusion AHH with HSH 40 can effectively expand blood vlume and increase urine output in surgical patients under general anesthesia.