Successful treatment of acute leukemia by secondary transplantation after the first haploidentical hematopoietic stem cell transplantation failure / 器官移植

Objective To evaluate the feasibility of secondary transplantation for patients with acute leukemia after failure of the first haploidentical hematopoietic stem cell transplantation. Methods Two acute leukemia patients underwent the first haploidentical hematopoietic stem cell transplantation from two donors with thalassemia, and the number of collected CD34+ cells was 2.57×106/kg and 1.99×106/kg per donor, respectively. The first haploidentical hematopoietic stem cell transplantation failed. Secondary transplantation was performed from two non-thalassemia donors, and the number of collected CD34+ cells was 4.28×106/kg and 5.75×106/kg per donor, respectively. A reduced-intensity conditioning regimen consisting of fludarabine (Flu), busulfan (Bu) and antithymocyte globulin (ATG) was adopted for the secondary transplantation. Results For two recipients, the time of secondary transplantation of neutrophil and platelet was +12 d and +10 d, +10 d and +10 d, respectively. Up to the final follow-up (+1 062 d and +265 d after secondary transplantation), the primary diseases of both two recipients have been completely relieved without evident post-transplantation complications. Conclusions Secondary transplantation with reduced-intensity conditioning regimen may successfully treat acute leukemia after failure of the first haploidentical hematopoietic stem cell transplantation.

Current status and directions of vision rehabilitation in glaucoma / 中华实验眼科杂志

Glaucoma, the leading cause of irreversible visual impairment in the world, leads to visual function damage that seriously affects the daily life activities and psychosocial function of patients, resulting in a significant decline in the quality of life.The life quality of patients can be efficiently improved through vision rehabilitation based on the residual visual function, but there is not enough attention paid to the visual impairment and vision rehabilitation of glaucoma.From a perspective of the epidemiological status of visual impairment in glaucoma at home and abroad, the universality and severity of the glaucomatous visual impairment was revealed.The characteristics of visual changes and corresponding rehabilitation needs of patients, the current situation of rehabilitation service supply, new devices that can expand visual field and the latest proven effective rehabilitation methods in light of the recent development of these fields were reviewed in order to provide certain inspiration and reference for the research of vision rehabilitation of glaucoma.

Specialized proresolving lipid mediators and eye diseases / 中华实验眼科杂志

Novel endogenous lipid-mediated molecules including lipoxins, resolvins, protectins, and maresin families are discovered recently and are collectively called specialized proresolving lipid mediators (SPMs). SPMs have the potential to promote the resolution of inflammation, the elimination of pathogen, and the restoration of homeostasis.Meanwhile, SPMs also have the function of apoptosis inhibition, wound healing, and neuroprotection.SPMs play an important role in the treatment of many eye diseases, such as corneal inflammatory diseases, dry eye, uveitis, retinal and choroidal neovascularization diseases, etc.In this article, the mechanisms involving the role of SPMs in the occurrence and progress of eye diseases were reviewed to provide a general new basis for the future development of new ophthalmic drugs.

The inhibition of aldose reductase and antioxidant activity of fractions of ethyl acetate extract from Toona Sinensis seeds / 国际中医中药杂志

Objective To investigate the inhibition of aldose reductase (AR) and antioxidant activity of fractions of ethyl acetate extract from Toona Sinensis seeds. Methods The antioxidant activities of fractions of ethyl acetate extract from Toona Sinensis seeds was evaluated with total antioxidant capacity and DPPH?free radicals scavenging. The inhibition and inhibition types of AR were investigated and the relationship of antioxidant activity and AR inhibitory activity was analyzed. Results Fractions of ethyl acetate extract from Toona Sinensis seeds exhibited antioxidant activity, total antioxidant capacity ordered by Fr.B>Fr.A>Fr.D>Fr.C. The DPPH?free radicals scavenging were ordered by Fr.A>Fr.B>Fr.D>Fr.C. The fractions exhibited AR inhibitory activity and the order was Fr.B>Fr.A>Fr.C>Fr.D. The inhibition mechanism of Fr.B was noncompetitive inhibition and IC50 was 0.401 mg/ml. The AR inhibitory activity of fractions was related to antioxidant activity with correlation index over 0.9. Conclusion This study will provide theoretical basis for exploitation of Toona Sinensis seeds.

Exploration of PBL and mini-CEX in the clinical probation teaching for medical students of eight-year program in hematology department / 中华医学教育探索杂志

Objective The study explored the feasibility of PBL teaching approach and mini-CEX scores evaluation method in hematology probation teaching practice. Methods 54 medical students of eight-year program were selected in the study and they were in hematology department of Sun Yat-sen Memorial Hospital for clinical probation. The study compared PBL teaching approach with traditional training method, and used mini-CEX to evaluate the students' clinical competence. Results The performance of PBL teaching group is better than traditional teaching group in the aspect of inquiry skill, clinical diagnosis, therapy plan and humanistic care (P<0.05). There is no significant difference of basic knowledge, physical examination skill and clinical operational skills between these two groups. More than 85％of the students in PBL group are satisfied with the teacher in the aspect of participation, feedback, guidance, correction and assistance. Conclusion Through this teaching practice, the study provides new methods for improving the teaching of pre-internal clinical practice in hematology department.

Clinical characteristics and treatment of spontaneous isolated superior mesenteric artery dissection / 中华消化外科杂志

Objective To investigate the clinical characteristics and treatment of spontaneous isolated superior mesenteric artery dissection (SISMAD).Methods The retrospective cross-sectional study was conducted.The clinical data of 80 patients with SISMAD who were admitted to the Wuhan Union Hospital Affiliated to Huazhong University of Science and Technology from February 2002 to March 2017 were collected.All the patients underwent computed tomographic angiography (CTA) and digital subtraction angiography (DSA) examinations,and then received conservative medical treatment,endovascular interventional treatment or exploratory laparotomy and revascularization.Observation indicators:(1) clinical features;(2) treatment;(3) follow-up.Follow-up using outpatient examination and telephone interview was performed once at 1,6 and 12 months after discharge and once every year after 1 year up to March 2017.Follow-up included recurrence of abdominal pain,changes of superior mesenteric artery (SMA) dissection or changes of SMA and remodeling of dissection after stent implantation.Measurement data were represented as average (range).Results (1) Clinical features:①) Clinical manifestation:75 of 80 patients had symptoms,and 5 without symptoms were diagnosed during health examination.Of 75 patients with symptoms,abdominal pain was the first symptom,with the main of the peri-umbilicus and epigastric pains,without peritoneal irritation sign,including 14 with nausea and vomiting and 4 with bloody stool.②) Results of imaging examination:80 patients were confirmed by CTA examination.CTA showed that there was local thickening of SMA,true and false double-lumen formation,thinner true arterial lumen with visible intimal flap shadow and thrombosis in the false lumen.Results of CTA showed that the first break was located within 1-6 cm from opening of SMA in 77 patients and in the middle and distal segment of SMA in 3 patients,without aortic dissection (AD).(2) Treatment:of 75 patients with symptoms,53 received conservative medical treatment with an effective rate of 70.7％ (53/75),average time of symptomatic remission was 5 days (range,1-12 days);22 received stent imnplantation via right femoral artery approach using self-expanding bare stent or covered stent,with a success rate of implantation of 95.5％ (21/22),including 21 with successful implantations and 1 with false implantation.One patient with false implantation had symptomatic remission after 1-week conservative medical treatment,and there was no exploratory laparotomy and revascularization.Five patients without symptom were required to control blood pressure and get regular follow-up,without other intervention.(3) Follow-up:75 patients with symptoms were followed up for 36 month (range,1-60 months).During follow-up,of 53 patients with conservative medical treatment,2 patients had significant progressions of SMA dissection by CTA examination,1 had recurrence and exacerbation of abdominal pain accompanied with bloody stool at 2-month follow-up,showing an aneurism of SMA dissection by DSA examination,and 1 had recurrence of abdominal pain at 1-year follow-up,both patients were improved after stent implantation;other 51 had no recurrence.Of 22 patients with stent implantation,1 had repeated abdominal pain during follow-up and the symptom became aggravated at 1-year follow-up,showing a thrombosis fonnation and proximal stenosis by CTA examination,and then underwent stent implantation in the proximal stenosis after anticoagulant therapy;SMA dissection of 1 patient completely healed at 2-year follow-up by CTA examination;other 20 patients had stent patency.Five patients without symptom had regular follow-up,showing no disease progression.Conclusions The symptoms of SISMAD are different,and abdominal pain is the one of main symptoms.At present,treatment regimens include conservative medical treatment,endovascular interventional treatment and surgery,and individualized treatment is decided according to clinical symptoms and physical signs of patients and imaging examinations.

Risk Factors for Mortality of Bloodstream Infections in Patients with Hematologic Diseases / 中山大学学报(医学科学版)

[Objective] To explore the risk factors for mortality of bloodstream infections in the patients with hematologic diseases,so as to provide evidence for reasonable and effective application of treatments.[Methods] The clinical data of 242 cases of bloodstream infections who were hospitalized from Jan 2012 to Jun 2016 were analyzed retrospectively,then the analysis was performed for risk factors.The statistical analysis was processed by SPSS 19.0.[Results] A total of 266 strains of pathogens were isolated,including 99 strains of gram-positive bacteria,accounting for 37.2％,and 164 strains of gram-negative bacteria,accounting for 61.7％.Multivariate analysis showed that the significant independent risk factors for mortality were active states of hematologic diseases (P =0.007,OR =5.622,95％ CI 1.586 ～ 19.924),presentation with septic shock(P =0.007,OR =4.978,95％ CI 1.560 ～15.884),cardiac insufficiency (P =0.001,OR =11.878,95％ CI 2.760 ～ 51.120),level of albumin less than 35 g/L (P =0.036,OR =3.468,95％ CI 1.087 ～ 11.066),polymicrobial infection (P =0.010,OR =6.024,95％ CI 1.540 ～ 23.563),and Staphylococcus haemolyticus (P =0.001,OR =19.308,95％ CI 3.392 ～ 109.888)/Enterococcus (P =0.002,OR =15.266,95％ CI 2.817 ～82.728) infection.The survival curves show that the inappropriate initial antimicrobial therapy group or presentation with any one of the independent risk factors had a lower probability of survival than the control group.[Conclusions] Bloodstream infections in patients may cause high mortality rate,so it is necessary that we use antibiotic reasonably and spare no effort to reduce the mortality rate by appropriate application of antimicrobial therapy and effective intervention of the risk factors.

Study of Extraction Process of Polysaccharide from Seeds of Toona sinensis and Antioxidant Activity in Vitro / 中国中医药信息杂志

Objective To optimize the conditions of extraction process of polysaccharides from seeds of Toona sinensis; To preliminary determinate the antioxidant activity in vitro. Methods The content of polysaccharides from Toona sinensis was chosen as evaluation index; the extraction time, material liquid ratio, and extraction times were chosen as factors; L9(34) orthogonal design was used to optimize extraction process; antioxidant activity of polysaccharides from Toona sinensis was investigated by the total reducing power and 1,1-diphenyl-2-picryhydrazyl (DPPH) method. Results From the statistical data of processing, the optimal extracting conditions were as follows:liquid to material was 1:12, extraction time was 120 min, and extracted for 3 times. Polysaccharides from seeds of Toona sinensis had certain reducing capacity and had better scavenging ability on DPPH? and the scavenging rate significantly increased with the concentration. The effect was simulated by curve equation. Conclusion The process is simple, feasible, stable and reliable and can be used for the small-scale study on extraction of polysaccharides from seeds of Toona sinensis. Polysaccharides from seeds of Toona sinensis have antioxidant activity.

Analysis of 36 patients with type B aortic intramural hematoma: clinical presentations, treatments and outcomes in a single center / 中国医师杂志

Objective To review the clinical manifestation,diagnosis method,misdiagnosis,risk factors,treatments and prognosis of Stanford B aortic intramural hematoma (IMHB).Methods All of the Stanford B aortic IMHB patients admitted in Wuhan Union hospital from January 2008 to December 2013 were analyzed.The clinical manifestation,diagnosis method,misdiagnosis,managements and prognosis were studied.Furthermore,the effect and long-term survival of different therapies were compared,including medical treatment and endovascular repair.The statistics was performed with SPSS 16.0.Results There were 36 B aortic IMHB patients,and the percent of male patients was 72.22％.The mean age of IMHB was 60.19 ± 11.12.Most patients complained of acute chest and back pain,accompanied with hypertension.Twenty-eight patients (77.78％) received medication therapy,among them,there were 5 patients died of aortic rupture; eight patients (22.22％) received endovascular surgery,one died of cerebral hemorrhage (12.5％).No difference was found between medication therapy and endovascular surgery (17.86％ vs 12.5％,P ＞0.05).Conclusions For simple type B aortic IMHB patients,medication therapy and a dynamic monitoring of full aortic CT angiography was recommended,and for pejorative patients the endovascular treatment should be taken actively.

Effects of quercetin in combination with bortezomib or lenalidomide on inhibition of proliferation of HL-60 cells / 实用医学杂志

Objective Our preliminary study demonstrates that quercetin can inhibit the proliferation of HL-60 cells. This sudy aimed to find some drugs which could have synergistic effects with quercetin on apoptosis of HL-60 cells. Methods HL-60 cells were cultured with bortezomib at different concentrations (1, 2, 4, 8, 16, and 32μmol/L) alone or combined with quercetin at different concentrations for 48 h. HL-60 cells were cultured with lenalidomide at different concentrations (5, 10, 20, 40, 80, 160, and 320 μmol/L) alone or in combination with quercetin at different concentrations for 48 h. The CCK-8 assay was used to determine the effects on proliferation of HL-60 cells. Results Bortezomib significantly inhibited the proliferation of HL-60 cells (P 0.05). The results of cell viability of HL-60 cells treated by lenalidomide at higher concentrations (160 and 320μmol/L) were lower than those of the control group (P<0.05). IC50 of quercetin after cells treated by quercetin combined with bortezomib was not different from that treated by quercetin alone. Isobolographic analysis revealed the two drugs had no synergistic effect. Conclusions Bortezomib can inhibit the proliferation of HL-60 cells and it has a synergistic effect with quercetin on HL-60 cells. Lenalidomide has a weaker role in inhibition of the proliferation of HL-60 cells, and it has no synergistic effect with quercetin on HL-60 cells.

Effects of membrane-bound prostaglandin E2 synthase 1 inhibitor MK886 on cell cycle of leukemia HL-60/A cells / 白血病·淋巴瘤

Objective To investigate the effect of membrane-bound prostaglandin E2 synthase 1 (mPGES-1) inhibitor MK886 on cell cycle of the human acute myeloid leukemia HL-60/A cells.Methods Flow cytometry,Western blot and ELISA were used to measure the difference of cell cycle,expression of cyclin D1, mPGES-1 among HL-60/A cells,MNC and HL-60 cells.The effect of MK886 on cell cycle,cyclin D1,mPGES-1,PGE2,P-Akt and c-myc of HL-60/A cells were observed.Results Compared with MNC and HL-60 cells,the expression of cyclin D1 and mPGES-1 were higher in HL-60/A cells,the percentage of G0-G1 phase was decreased [MNC (62.63±6.58) ％,HL-60 (38.86±2.25) ％,HL-60/A (30.53±2.15) ％]and S phase increased[MNC (12.18±4.43) ％,HL-60 (47.70±1.88）％,HL-60/A (57.56±1.54) ％](all P＜ 0.05).After treated with MK886,cell cycle was arrested in G0-G1 phase.The expression of mPGES-1,cyclin D1,P-Akt and c-myc and synthesis of PGE2 were decreased.Conclusion MK886 can arrest HL-60/A cell cycles in G0-G1 phase,which possibly through down-regulation of mPGES-1/PGE2,reduction cyclin D1,P-Akt and c-myc expression.

Topical propranolol hydrochloride gel for superficial infantile hemangiomas / 华中科技大学学报（医学）（英德文版）

The clinical efficacy and safety of topical propranolol hydrochloride gel in the treatment of superficial infantile hemangiomas (IHs) were assessed. Fifty-one cases of IHs from Oct. 2010 to Sept. 2011 were subjected to the topical propranolol hydrochloride gel intervention in Fuzhou General Hospital of Nanjing Military Commands, China. Changes in size, texture, color, peak systolic velocity of the hemangiomas, resistance index and adverse effects were observed. The results were evaluated by using Achauer system, and responses of IHs to pranpronolol were considered scale II (poor) in 4 patients (17.24%), scale II (moderate) in 18 patients (24.14%), scale III (good) in 22 patients (44.83%) and scale IV (excellent) in 7 patients (13.79%). The response of superficial hemangiomas was significantly better than other hemangiomas (P0.05). Our study indicates that topical application of 3% propranolol hydrochloride gel is effective and safe in treating IHs.

Topical propranolol hydrochloride gel for superficial infantile hemangiomas / 华中科技大学学报（医学）（英德文版）

The clinical efficacy and safety of topical propranolol hydrochloride gel in the treatment of superficial infantile hemangiomas (IHs) were assessed. Fifty-one cases of IHs from Oct. 2010 to Sept. 2011 were subjected to the topical propranolol hydrochloride gel intervention in Fuzhou General Hospital of Nanjing Military Commands, China. Changes in size, texture, color, peak systolic velocity of the hemangiomas, resistance index and adverse effects were observed. The results were evaluated by using Achauer system, and responses of IHs to pranpronolol were considered scale II (poor) in 4 patients (17.24%), scale II (moderate) in 18 patients (24.14%), scale III (good) in 22 patients (44.83%) and scale IV (excellent) in 7 patients (13.79%). The response of superficial hemangiomas was significantly better than other hemangiomas (P<0.05), and no differences in response were found among different primary sites (P>0.05). Our study indicates that topical application of 3% propranolol hydrochloride gel is effective and safe in treating IHs.

Deep vein thrombosis: Related to anemophilous pollen? / 华中科技大学学报（医学）（英德文版）

The etiology of deep vein thrombosis (DVT) is still not elucidated nowadays. Based on the accordance between DVT incidence and the anemophilous pollen concentration in the air, we proposed the hypothesis that allergic reaction induced by anemophilous pollen may cause "idiopathic" DVT, and proinflammatory factors may play an important role in the thrombosis process.

Intravenous leiomyomatosis with right heart involvement-A report of 4 cases and literature review / 华中科技大学学报（医学）（英德文版）

Intravenous leiomyomatosis (IVL) is a rare benign neoplasm which originates from the smooth muscle cells and is usually confined to the pelvic venous system. Rarely, intracaval and intracardiac extension has been described. Death can occur as a result of intracardiac involvement. We reported 4 cases of IVL with right heart involvement (intracardiac leiomyomatosis, ICL). Three of them suffered recurrent sudden syncope, and the other one was totally asymptomatic. All of them were successfully treated through one-stage operation under extracorporeal circulation.

Analysis of 287 patients with aortic dissection: General characteristics, outcomes and risk factors in a single center / 华中科技大学学报（医学）（英德文版）

The general characteristics, outcomes and risk factors of the patients with aortic dissection (AD) were evaluated in a single medical center. From January 2002 to December 2008, 284 patients with AD were treated and followed-up at our institution, including 105 cases of type A AD and 179 cases of type B AD. The patients in each type were divided into three groups according to management: medical treatment group (A or B), open surgery group (A or B), and stent-graft group (A or B). The characteristics and follow-up outcomes were compared between the groups or subgroups. The results showed that there was significant difference in the prognosis for type A AD between medical treatment group and open surgery group, but there was no significant difference in the prognosis for type B AD between medical treatment group and stent-graft group. Independent risk factors of follow-up mortality for patients with type A AD included a history of atherosclerosis (HR, 3.807; 95% confidence interval [CI], 1.489 to 7.611; P=0.003), in-hospital hypotension/shock (HR, 4.687; 95% CI, 1.846 to 11.900; P=0.001), in-hospital myocardial ischemia or infarction (HR, 3.734; 95% CI, 1.613 to 8.643; P=0.002), pleural effusion (HR, 2.210; 95% CI, 1.080 to 4.521; P=0.030), branch vessel involvement (HR, 2.747; 95% CI, 1.202 to 6.278; P=0.016) and surgical treatment (HR, 0.177; 95% CI, 0.063 to 0.502; P=0.001). And there were insignificant independent predictors for mortality of the patients with type B AD. It was concluded that there were significant differences in characteristics and one year mortality between type A AD and type B AD, but after one year, there was no significant difference in the mortality and complications of them. There were several discordant risk factors of AD, such as female gender, age, thrombus, abrupt onset of pain that were considered as the risk factors in some papers. And there was no definite risk factor of mortality in this study in the patients with type B AD.

Inhibition effects of the selective COX-2 inhibitor of nimesulide on proliferation of HL-60 leukemia cells / 白血病·淋巴瘤

Objectiye To investigate the effect of selective COX-2 inhibitor, nimesulide, on inhibiting proliferation of the human acute myeloid leukemia HL-60 cells. Methods HL-60 cells were treated with different concentration of nimesulide. HL-60 cell proliferation was examined by CCK-8 method. Flow cytometry, Western blotting and ELISA were used to measure the effect of nimesulide on apoptosis, cell cycle,COX-2, PGE2, bax, bcl-2 and c-myc. Results Nimesulide inhibited HL-60 cells proliferation in a dose and time dependence manner. Nimesulide induced cell apoptosis and arrested cell cycle in G0-G1 phase. The expression of COX-2 protein declined after treated with nimesulide 48 h, the total apoptosis in 100, 200,400 μmol/L nimesulide-treated group and control group were (24.97 ± 6.36) %, (34.22 ± 5.76) %, (44.59 ±6.69) % and (4.11 ± 1.26) %, there were significant differences (P ＜ 0.05). Nimesulide inhibited the synthesis of PGE2, the expressions of bcl-2 and c-myc protein and upregulated the expression of bax protein simultaneity.Conclusion Nimesulide significantly inhibited the proliferation of HL-60 cells and induced cell apoptosis,which may be associated with the downregulation of COX-2 expression, reduction of PGE2 synthesis, arrest of cell cycle and regulation bcl-2, c-myc and bax protein expression.

Clinical analysis with subacute necrotizing lymphadenitis / 国际儿科学杂志

Objective To investigate etiological factors, clinical characteristic and related laboratory findings of subacute necrotizing lymphadenitis and improve the acknowledgement of subacute necrotizing lymphadenitis. Methods We analyzed 14 cases of subacute necrotizing lymphadenitis who had been diagnosed by lymph node biopsy retrospectively. Results The most of patients were school children with mean age of 10.4 ± 2.9) years. The ratio of male to female was 1.8∶1 .The main clinical symptoms were that lymph nodes were swelling and pressing-pain in 14 cases (100%) and fever in 13 cases (92.9%), rash in 2 cases (14.3%),hepatosplenomegaly in 2 cases (14.3%).The white blood cell count was (2.3 ～ 7.4) × 109/L in 14 cases and average count was (3.90 ± 0.35) × 109/L. The white blood cell count showed leukopenia in 10 cases (71.4%) and none showed heighten. Twelve cases were tested by CRP and the result of 8 cases elevated slightly (10 ～ 30 mg/dl). Thirteen cases underwent ESR examination and the result of 11 cases showed higher than that of normal level (20mm/h)(82.6%). The average ESR risen value was 40mm/h and topmost value was 70 mm/h. Eight cases underwent anti-nuclear antibody test and 2 cases of them were positive. Twelve cases underwent EB virus antibody test and 4 cases of them were positive. Eleven cases underwent blood Mycoplasma-IgM examination and one of them was positive. Six cases underwent coxsackie virus antibody and one of them was positive.Coxsackie and EB virus infected in one case. Lymph node biopsy was found necrotic fragments in different sizes. The cellular hyperplasia was found around the necrotic area and plasma cells, neutrophils, and eosinophils were found rarely in these areas. The DNA of EB virus was negative in lymph nodes. Eight cases of all were treated by prednisone and effect showed well 1.5 ～ 2.0 mg/(kg·d)). One of all was recurrence and the rest recovered well. Blood routine examination was used when they were under a stable condition, five cases of them showed normal white blood cells. Conclusion Those with fever of unknown origin combined with lymphadenectasis are suggested to have an early lymph node biopsy. The process is self-limited and glucocorticoid therapy is effective to those impatients. The long-term follow up is required as recurrence and development of SLE have reported. EB virus was not an etiological factor of SNL. Leucocyte can be used as one of the indicators of improvement.

Acute phase reaction of different macromolecule vascular grafts healing in rat muscle / 生物工程学报

To find out which biomaterial had the best biocompatibility, we compared the acute phase reaction of common biomaterials preparing for vascular grafts with the material of polyurethane modified by silk fibroin (SF-PU(1:1)). After transplanted the materials of dacron, polyterafluoroethylene (e-PTFE), polyurethane (PU), SF-PU(1:1) in rat muscle for one week, we studied the influence of different biomaterials on the histocompatibility by using rat acute toxicity test, test of local reaction in muscle, tissue section staining, WBC and PLT count. As a result, dacron had the worst histocompatibility. The other biomaterials had slight local inflammatory reaction. The WBC and PLT was nearly the same with the blank except dacron. e-PTFE, pure PU and SF-PU(1:1) had the better histocompatibility than traditional dacron. Especially SF-PU(1:1) had the best histocompatibility. Because of the better physical properties and histocompatibility of SF-PU( 1:1), the prospect of preparing small-diameter vascular grafts with SF-PU was cheerful.

Expression level of VEGF in NHL and its clinical significance / 白血病·淋巴瘤

Objective To detect the expression of VEGF in NHL and analyze the relation of the expression levels with malignant aggressiveness,treatment response,and prognosis.Methods The expression of VEGF in lymph nodes taken from 39 NHL patients Wag measured by immunohistochemical-staining method.9 patients with benign lymphadenopathy were acted as control.Results The expression of VEGF in NHL(79.5%)was higher than that in the contrel(44.4%)(P=0.048＜0.05).In NHL,the VEGF level was higher in aggressive lympboma than that in indolent lymphoma(x2=5.284,P=0.044＜0.05).The patients had the higher-level expression as the Ann Arbor stage Wag higher,and the patients who had the higher-level expression of VEGF had higher serum LDH level,lower chemotherapy remission,unfavorable prognosis and lower 3-year survival (P＜0.05).Conclusion The expression of VEGF in NHL was increased.It was correlated with histopathological grade,Ann Arbor stage,chemotherapy response and prognosis.