Objective To observe the clinical effect of alprostadil combined with Yiqi Huoxue Huatan Tongluo Decoction in treating arteriosclerosis obliterans.Methods 60 cases of lower extremity arteriosclerosis occlusion disease outpatient and hospitalized patients were randomly divided into treatment group and control group according to the random number table method, each group were 30, the oral administration of enteric coated aspirin experimental group is set to control group intravenous injection of alprostadil treatment for 4 weeks, the treatment group was treated with Huatan Tongluo Decoction on the basis of the control group.The clinical symptoms, blood vessel function (ABI),low density lipoprotein-cholesterol (LDL-C), total cholesterol( TC) were observed in the two groups of patients, and blood rheology indexes included whole blood viscosity, fibrinogen, liver and kidney function and adverse reactions.ResuIts Total effective rate of the treatment group was 93.33% than control group 73.33% (P<0.05), the treatment group of ankle brachial index ( ABI) was better than the control group, the treatment group TC, LDL-C, high shear whole blood viscosity, low shear whole blood viscosity, fibrinogen protein improve were better than those of the control group (P<0.05).ConcIusion Disease curative effect is better than pure alprostadil in the treatment of occlusion Huoxue Huatan Tongluo Decoction combined with alprostadil in the treatment of lower limb arteriosclerosis.

0.05). There was no difference between various historical types neither. But it was found that there was a trend that AgNOR counts would increase as the increase of the historical grade and there was a significant difference (P

Objective To detect the expression level of miRNA-575 by pancreatic cancer stem cells.Methods Pancreatic cancer cell lines were cultured with serum-free medium.The cancer stem cells were obtained and their characteristics were observed with an invasion assay,a xenograft experiment,and flow cytometry analysis.Moreover,qRT-PCR was used to detect the expression of miR-575.Results A small subpopulation of cells in both ASPC-1 and PANC-1 cells survived and formed spheres in the absence of serum.The mean number of migrated cells of PANC-1 and ASPC-1 spheres was (147.3±18.6) cells and (113.2±12.9) cells.Therefore,the spheres have higher invasive ability compared with those of parental cells.As few as 5 × 105 cells in PANC-1 and ASPC-1 spheres could initiate a xenograft tumor in NOD/SCID mice,which suggested the tumorigenicity of the spheres was 100 times those of parental cell lines.The percentages of CD24+CD44+ in spheres were 0.38％-0.43％ and 4.91％-5.21％,which showed increased expression compared with ASPC-1 and PANC-1 cell lines (P＜0.05).The expression of miR-575 in spheres was 3.71 and 3.83 times its expression in cell lines ASPC-1 and PANC-1 respectively (P＜0.05).Conclusions Pancreatic cancer cell spheres may be a source for collecting cancer stem cells in a serum-free medium culture,and MiR 575 may play an important role in regulating the biological characteristics of pancreatic cancer stem cells.

Objective To investigate the clinicopathological factors related with the lymph node ratio (LNR) in colorectal cancer patients.Methods The clinical and pathological data of 177 colorectal cancer patients who were treated by surgery in Shanghai Jiao Tong University Affiliated Sixth People's Hospital from January 2011 to December 2013 were collected.The association between LNR and clinicopathological factors were evaluated by single factor analysis nsingx x2 test.Results Gender,age,tumor location,tumor size,gross type,depth of infiltration,infiltration extent around bowel wall and preoperative serum CA199 concentration were not related with LNR (P ＞0.05),but tumor histological type,tumor differentiation,preoperative serum CEA,CA125 concentration were related with LNR (P =0.001,0.004,0.004,0.025).Conclusions Tumor histological type,tumor differentiation,preoperative serum CEA,CA125 may be the important factors related with LNR in colorectal cancer.

ObjectiveTo investigate the possible mechanisms for biocompatibility of chitosan material using agarose/chitosan blended hydrogels as a model.Methods A series of agarose/chitosan blended hydrogels with different chitosan content were prepared by the blending method.The chemical groups of the blended hydrogels were analyzed by the Fourier transform infrared (FTIR) spectroscopy.The blending compatibility between the agarose and chitosan was evaluated with the fluorescein-4-isothiocyanate (FITC) staining method.The charge of the blended hydrogels was determined by the zeta potential measurement.The adsorption of total fetal bovine serum (FBS) proteins and bovine serum albumin (BSA) on the blended hydrogels was measured by the bicinchoninic acid (BCA) method.The adsorption of fibronectin (FN) on the blended hydrogels was measured with ELISA.Cell culture experiment adopted human microvascular endothelial cell line (HMEC-1) as the model.The cytocompatibility was studied by evaluating adhesion,proliferation,and morphology of the cells on the blended hydrogels.Results Characteristic chemical groups of chitosan could be detected in the agarose/chitosan blended hydrogels.The chitosan had a good blending compatibility with the agarose.The amino groups of chitosan were uniformly distributed in the blended hydrogels.The blended hydrogels were strongly positively charged at acidic pH (pH 3.0),however,the zeta potentials of all the hydrogels were reduced to nearly 0 mV at neutral pH (pH 7.4).There were no significant differences in the adsorption of total FBS proteins and BSA between the blended hydrogel groups.However,the adsorption of FN on the hydrogels significantly increased with the increase of chitosan content.Cell culture experiment indicated that the cytocompatibihty of the blended hydrogels was significantly improved with the increase of chitosan content.The HMECs exhibited higher levels of adhesion,spreading,and proliferation on the hydrogels with higher chitosan content.ConclusionResults in this study indicated that the chitosan component preferentially adsorbed FN compared to the other serum proteins,leading to adhesion and spreading of the cells on the blended hydrogels.In contrast to prevailing views,it was found in the present study that the biocompatibility of chitosan did not relate to its positive charge.

Objectives To isolate cancer stem cells (CSCs) in pancreatic cancer cell lines PANC1 and ASPC-1 with serum-free medium( SFM ), and to detect the expression of miR-590-3p in CSCs. Methods PANC1 and ASPC-1 cells was cultured in serum-free medium. The monoclonal formation, differentiation and cell cycle, half inhibitory concentration ( IC50 ), and the expression of the surface markers CD24 + , CD44 + were detected. qRT-PCR was used to detect the expression of miR-590-3p. Results After SFM culture, (0.94 ±0.53 ) ％ of ASPC-1 and (0.57 + 0. 12 ) ％ PANC1 survived, and they formed spheres, and could continuously passage in vitro. Cell spheres differentiation recurred when serum was supplemented in SFM. The G0/G1 stage proportion, CD24+ , CD44 + , CD24+ CD44+ cells proportion, IC50 in ASPC-1 cell were (75.3 ± 5.4)％,0.96％ ～ 2.01％, 27.52％ ～ 34.47％, 0.35％ ～ 0.44％ and (224.37 ± 5.71 ) μg/ml, which were significantly higher than that those in parent cell [ (43.7 ± 3.8 ) ％, 0. 38％ ～ 0.42％, 17.65％ ～ 18.25％,0.05％ ～0.08％, (11.43 ±2.10)μg/ml, P＜0.05]. The G0/G1 stage proportion, CD24+ ,CD44+ ,CD24 +CD44 + cells proportion, IC50 in PANC 1 cell were ( 80. 1 ± 4.7) ％, 5.31％ ～ 9.84％, 72.05％ ～ 93.06％,4.91％ ～5.21％, (296.58±4.27) μg/ml, which were significantly higher than that those in parent cell [ (46.1 ±5.3)％, 4.09％ ～4.97％, 47.71％ ～55.66％, 1.48％ ～2.63％, (26.17 ±3.81)μg/ml, P＜0.05]. The expression of miR-590-3p in ASPC-1, PANC1 spheres was 4.67 and 4.52 times higher than the expression in parent cell lines. Conclusions Pancreatic cancer cell spheres can be isolated from ASPC-1, PANC1 by culture with SFM. miR-590-3p is up-regulated and may play an important role in regulating biological characteristics of pancreatic cancer stem cells.

The various mechanisms of kyphosis of the spine and the differential diagnosis of related diseases to guide the selection of appropriate surgical timing, correct spinal osteotomy and reasonable surgical methods. The 24 patients with kyphosis from January 2016 to January 2018 were diagnosed. All patients underwent kyphosis orthopedics, mainly spinal wedge osteotomy, to obtain orbital purpose by wedge osteotomy. The indexes of the spine form, activity, and pain were observed after operation. Of the 24 patients with kyphosis, 5 patients were treated conservatively, and the symptoms of kyphosis were effectively relieved. 19 patients underwent kyphosis orthopedic surgery, and the anterior spine and posterior closed osteotomy. The patients recovered well after surgery and were followed up regularly. The treatment of high anterior spine and posterior closed osteotomy in patients with kyphosis has accurate surgery effect. There are no complications such as pain and internal fixation during the regular follow-up.

Objective:To investigate the efficacy and safety of geritinib in the treatment of acute myeloid leukemia (AML) with FLT3 mutation.Methods:The clinical data of 5 AML patients with FLT3 mutation who were diagnosed in the University of Hong Kong-Shenzhen Hospital, Shenzhen People's Hospital, Shenzhen Second People's Hospital, Shenzhen University General Hospital from March 2020 to April 2021 were retrospectively analyzed. Relapsed patients concurrently received two- or three-drug chemotherapy combined with geritinib. Blood routine was checked once a week; liver function and renal function were checked once every 2 weeks during treatment. Bone marrow puncture was performed once every 1 to 3 months to monitor the bone marrow morphology, minimal residual disease (MRD) and FLT3 mutation expression levels. The efficacy, side effects, overall survival of these patients were analyzed after treatment with geritinib.Results:The white blood cell was increased in all the 5 patients at the initial diagnosis. FLT3 mutations analysis showed FLT3-internal tandem duplication (ITD) (3 cases) and FLT-3 tyrosine-kinase domain (TKD) (2 cases). Among 5 patients, 1 patient was relapse-free with maintenance therapy of oral geritinib after hematological stem cell transplantation (HSCT) for 60 days; among other 4 relapsed and refractory patients, 1 female patient after pregnancy relapsed after transplantation and then achieved complete remission followed by the maintenance therapy with geritinib after oral geritinib, 1 16-year-old patient achieved treatment outcome close to the complete remission after treatment with geritinib, 1 patient achieved complete remission after treatment with geritinib, and then underwent haplo-HSCT followed by the maintenance therapy with geritinib and the other 1 relapsed patient achieved complete remission after treatment with geritinib. After transplantation, 3 patients receiving maintenance treatment of geritinib did not relapse. The main side effects included anemia, decreased neutrophil count, rash, and increased aminotransferase. The median follow-up time of 5 patients was 15 months (6-20 months). All 5 cases survived until the last follow-up in November 2021 and 4 patients were disease-free.Conclusions:Relapsed and refractory AML patients with FLT3 mutation can achieve complete remission after treatment with geritinib and get a chance for transplantation. Geritinib may reduce the risk of recurrence after transplantation and improve survival rate. No serious side effects occur in geritinib treatment.