Objective: To analyze the efficacy of HLA-haploidentical peripheral hematopoietic stem cell transplantation (haplo-PBSCT) following reduced intensity conditioning (RIC) regimen to treat the patients with hematological malignancies who were older than 50 years old. Methods: Eighteen patients with hematological malignancies over 50 years were enrolled, including 8 male and 10 female patients. The median age of all patients was 52 (range: 50-66) years. Of them, 8 patients had acute myeloid leukemia (AML) , 2 chronic myelocytic leukemia (CML) , 5 myelodysplastic syndrome (MDS) , 2 acute lymphoblastic leukemia (ALL) , and 1 aggressive natural killer cell leukemia (ANKL) . All patients received fludarabine, cytarabine and melphalan with rabbit anti-human thymocyte globulin (FAB+rATG regimen) and transplanted with high dose non-T cell-depleted peripheral hematopoietic stem cells from donors. Enhanced graft versus host disease (GVHD) prophylaxis and infection prevention were administered. Results: Fifteen days after transplantation, 16 patients achieved complete donor chimerism. One of them rejected the donor graft completely at thirty days after transplantation, and the other 2 patients had mixed chimerism 15 days after transplantation and converted to complete recipient chimerism at 30 days after transplantation. The cumulative incidence of acute GVHD (aGVHD) was 61.1% (95%CI49.6%-72.6%) . The incidence of grade Ⅱ-Ⅳ aGVHD was 35.4% (95%CI 21.1%-49.7%) , whereas grade III-IV was 13.8% (95%CI 4.7%-22.9%) . The 2-year cumulative incidence of chronic GVHD (cGVHD) rate was estimated at 38.2% (95%CI 25.5%-50.9%) . Patients were followed-up for a median of 14.5 months (range, 3-44 months) . The Kaplan Meier estimates of 2-year overall survival (OS) and disease-free survival (DFS) was 72.6% (95%CI 60.1%-85.1%) and 63.7% (95%CI 49.2%-78.2%) , respectively. The 2-year cumulative incidence of relapse and non-relapse-mortality (NRM) was 31.2% (95%CI 16.5%-45.9%) and 12.5% (95%CI 4.2%-20.8%) , respectively. Conclusion: RIC-haplo-PBSCT protocol can achieve better results in patients with hematologic malignancies over 50 years old.
Aged ; Female ; Graft vs Host Disease ; Hematologic Neoplasms ; Hematopoietic Stem Cell Transplantation ; Humans ; Male ; Middle Aged ; Myelodysplastic Syndromes ; Transplantation Conditioning

The Dendrobium species are rare and endangered medicinal plants, and it is difficult to investigate their wild resources with conventional methods because of typical epiphytic herbaceous. We explored Dendrobium resources(include culture resource) of Qinba Mountains and the boundary Mountain area in Hubei, Chongqing using the methods of literatures and field investigation, and found that the cultural base of Dendrobium were profound in Qinba Mountains region. Furthermore, its germplasm resources of Dendrobium were established for the first time in Wanzhou Luotian town. In case the advantages of local rock resources and poverty alleviation demand, we have actively carried out the cultivating mode of Dendrobium which grow on rock, and the poverty alleviation model of local characteristic Dendrobium industry were established preliminarily. Our application case can provide reference for the mining and transformation of traditional Chinese medicine resources census results.
Agriculture ; economics ; China ; Dendrobium ; growth & development ; Medicine, Chinese Traditional ; Plants, Medicinal ; growth & development ; Poverty

We studied the content of chemical compositions and correlation among species of Tripterygium genus by principal component analysis(PCA) and variance analysis(ANOVA), and we also studied the difference among the 3 species.Using [BMIm]PF6 ionic liquid-based ultrasonic-assisted extraction, we determined the contents of 11 compounds including wilforgine, wilforzine, triptophenolide, wilforine, triptoquinone A, triptolide, tripterin, egallocatechin, epigallocatechin, catechin, and epicatechin in 28 batches of the Tripterygium species by HPLC and PCA. Partial least squares analysis (PLS) and ANOVA were also performed to verify the results.The analysis results of PCA and PLS showed that three species of Tripterygium genus were clustered into three regions respectively, and triptoquinone A was the important factor which affected the aggregation of these three species.There was a significant difference among the contents of 11 chemical components in the three species(P<0.000 1).These results indicated that there was a certain correlation between the chemical compositions and the classification of the species, and the difference of the chemical compositions among the three species was obvious. In this work, the content determination method is rapid and accurate, and the analysis method is simple and convenient, which provides a reference for the classification, the efficacy and the toxicity of the species.

Objective To study the expression of RUNX3 in colorectal adenocarcinoma tissues and its correlation with microvessel density (MVD), and investigate the clinical pathological prognostic significance of RUNX3 and MVD in patients with colorectal cancer. Methods The expression value of RUNX3 and MVD in 70 specimens’ colorectal adenocarcinoma tissues were detected by immunohistochemistry staining technique. The correlation between their expression and the clinicopathologic features was also investigated. Results The expression value of RUNX3 and the positive rates of RUNX3 in colorectal adenocarcinoma tissues were 3.25 ± 1.14 and 25.71% (18/70). The expression value of MVD in colorectal adenocarcinoma tissues was 13.14 ± 3.23. Expression of RUNX3 and MVD value were correlated with CEA, serosal invasion, liver metastasis, lymph node metastasis, and TNM stage (P < 0.01). The expression value of RUNX3 had negative correlations with that of MVD. Conclusions The high expression of RUNX3 could inhibit tumor microvascular generation in order to have negative control response on invasion and distant metastasis.

Objective: To study the expression of caveolin-1 in colorectal adenocarcinoma tissues and its correlation with microlymphatic vessel density (LMVD), and to investigate the clinical pathological prognostic significance of caveolin-1 and LMVD in patients with colorectal cancer. Methods: The expression of caveolin-1 and LMVD in 45 specimens of normal colorectal tissues, and 90 specimens of colorectal adenocarcinoma tissues were detected by immunohistochemistry technique. The correlation between their expression and the clinicopathologic features was analyzed. Multivariable Cox regression was used to analyze the association between the laboratory indices and overall survival time. Results: The positive rates of caveolin-1 in colorectal adenocarcinoma tissues were significantly higher than those in normal colorectal tissues (P < 0.01). LMVD in colorectal adenocarcinoma tissues were significantly higher than those in normal colorectal tissues (P < 0.01). Mean LMVD in group with caveolin-1 positive was significantly higher than in that with caveolin-1 negative. The median survival time was 26.7 months. Cox regression analysis showed that the caveolin-1 expression, invation depth, lymph node metastasis, TNM stage, liver metastasis and LMVD were independent risk factors of overall survival time of patients with colorectal carcinoma. Conclusions: Caveolin-1 may contribute to the lymphangiogenesis in the tumor. During the occurrence and development of colorectal adenocarcinoma, there is a close relationship between the expression of caveolin-1 and lymphatic microvessel of tumor. Caveolin-1 expression and microlymphatic vessel density are significant prognostic value of colorectal carcinoma.

BACKGROUNDAzithromycin can reduce neutrophil accumulation in neutrophilic pulmonary diseases. However, the precise mechanism behind this action remains unknown. Our experiment assessed whether azithromycin inhibits neutrophil accumulation in the airways by affecting interleukin-17 (IL-17) downstream signals.

METHODSMice were pretreated with azithromycin before murine IL-17A (mIL-17) stimulation. After the mIL-17 stimulation, the levels of six neutrophil-mobilizing cytokines were determined by enzyme-linked immunosorbent assay (ELISA) tests in bronchoalveolar lavage (BAL) fluid; IL-6, CXC chemokine ligand-1 (CXCL-1), CXCL-5, macrophage inflammatory protein-2 (MIP-2), granulocyte colony-stimulating factor (G-CSF), and granulocyte macrophage colony-stimulating factor (GM-CSF). The number of neutrophils in BAL fluid were evaluated by cytospin preparations.

RESULTS(1) Azithromycin pretreatment significantly inhibited both the release of three neutrophil-mobilizing cytokines (MIP-2, CXCL-5 and GM-CSF) and the accumulation of neutrophils in airways caused by mIL-17 stimulation. (2) The levels of three neutrophil-mobilizing cytokines (IL-6, MIP-2 and GM-CSF) were positively correlated with the numbers of neutrophil in BAL fluid.

CONCLUSIONSAzithromycin can inhibit neutrophil accumulation in the airways by affecting IL-17 downstream signals. This finding suggests that macrolide antibiotic application might be useful in prevention of neutrophilic pulmonary diseases characterized by high levels of IL-17.

Animals ; Azithromycin ; pharmacology ; Bronchoalveolar Lavage Fluid ; chemistry ; Chemokine CXCL2 ; metabolism ; Chemokines, CXC ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Granulocyte Colony-Stimulating Factor ; metabolism ; Granulocyte-Macrophage Colony-Stimulating Factor ; metabolism ; Interleukin-17 ; pharmacology ; Interleukin-6 ; metabolism ; Male ; Mice ; Mice, Inbred BALB C ; Neutrophils ; drug effects ; metabolism

Objective To compare the efficacy and safety of domestic levosimendan versus dobutamine for patients with acute decompensated heart failure (ADHF).Methods ADHF patients from 8 medical centers were recruited in this multicenter,blind,positive-controlled,randomized study and received 24 h intravenous levosimendan (n =114) or dobutamine (n =114) therapy.SWAN-GANZ catheter was performed in patients with pulmonary capillary wedge pressure (PCWP) ≥ 15 mm Hg ( 1 mm Hg =0.133kPa) and cardiac index (CI) ≤ 2.5 L · min-1 · m-2 ( n =39 each).Results Compared with baseline level,LVEFincreased [(31.56 ±9.69)％ vs.(28.44 ±7.08)％,P＜0.01] at 24 h in both groups.LVEF increase at 24 h was similar between two groups [ ( 3.11 ± 6.90 ) ％ vs.( 3.00 ± 6.63 ) ％,P ＞0.05].The PCWP decrease at 24 h was significantly greater in levosimendan group than in dobutamine group [ ( - 8.90 ± 7.14) mm Hg vs.( - 5.64 ± 6.83) mm Hg,P =0.04 ].Decrease in NT-proBNP at 3 days was also more significant in levosimendan group than in dobutamine group [ the percentage change compared to baseline:( - 22.36 ± 38.98) ％ vs.( - 8.56 ± 42.42) ％,P ＜ 0.01 ].Dyspnea improvement at 24 h was more significant in levosimendan group than in dobutamine group.The incidences of adverse reactions and events were similar between two groups.Conclusion LVEF improvement is similar between dobutamine and domestic levosimendan while greater decreases in PCWP and NT-proBNP are achieved with domestic levosimendan in patients with ADHF.

Objective To explore the feasibility and methodology of radiofrequency catheter ablation (RFCA) guided by 3D navigation system (Ensite-NavX) for right atrioventricular accessory pathway.Method Thirty-three cases of right accessory pathway atrioventricular reentrant tachycardia including 16 cases in right free wall,3 in right middle septum,14 in right posterior septum; 23 cases of dominant accessory pathway and 10 cases of concealed were treated by RFCA guided by NavX navigation.NavX navigation modeling method or spatial localization method was exploited to locate target positioning.Result All patients were successfully ablated without serious complications.Among them,25 cases were operated without exposure to X-ray,7 patients were exposed for several seconds to verify catheter position,1 case in right free wall was ablated under X-ray combined with Swartz sheath ablation.Conclusion Nonfluoroscopy or less fluoroscopy RFCA for right atrioventricular accessory pathway with Ensite-NavX is safe and feasible,modeling or spatial orientation method are helpful to locate the ablation target positioning.

This study was purposed to investigate the value of Histocheck and HLA-Matchmaker softwares in evaluating influence of HLA protein three dimensional conformation among individuals on outcome of unrelated donor hematopoietic stem cell transplantation (URHSCT). Data of the HLA-A/B/C/DRB1/DQB1 genotypes from 62 cases of URHSCT (HLA-allele 10/10 match 30 cases, 9/10 match 32 cases) were input into Histocheck and HLA-Matchmaker softwares respectively. The relationship between the software dissimilar scores and the 1 year overall survival (OS), incidence of aGVHD of III-IV grade and relapse rate was analyzed. The results showed that (1) with increase of the Histocheck scores, incidence of aGVHD of III-IV increased from 0% to 20% (p = 0.25), while no or mild aGVHD occurred in 70% cases with the high scores. For the relapsed cases, there was no significant difference between the cases with low scores and with highest scores (relapse rate 20%) except that 9 cases had no relapse in the group with higher score (11 - 20). (2) the analysis using HLA matchmaker software showed that incidence of aGVHD of III-IV grade increased with the increase of numbers of mismatch Eplets, arranging from 0% to 30%, the incidence of moderate aGVHD reduced (p = 0.019), whereas 60% cases in highest scores group had moderate aGVHD. No relapse occurred in the group with higher scores (≥ 3) (n = 10), whereas high relapse rate appeared in the lower score group (20%, p = 0.54). It is concluded that the value of Histocheck and HLA-Mtchmaker software for analysing the outcome of URHSCT may be similar despite of different calculating methods; for the certain pair of recipient and donor, correlation of the two score systems with incidence of aGVHD and relapse rate is similar, but with less accuracy; The HLA Matchmaker software appears better than Histocheck software in terms of correlation.
Adolescent ; Adult ; Alleles ; Child ; Child, Preschool ; Female ; Genotype ; Graft vs Host Disease ; HLA Antigens ; genetics ; Hematopoietic Stem Cell Transplantation ; methods ; Histocompatibility Testing ; Humans ; Male ; Protein Conformation ; Recurrence ; Software ; Tissue Donors ; Young Adult

This study was purposed to explore the influence of number and locus of HLA allele mismatch on unrelated donor hematopoietic stem cell transplantation (URHSCT) in Chinese Han population. Total 10 alleles within the HLA-A/B/C/DRB1/DQB1 loci were analyzed by PCR-SSP for 101 pairs of donor and recipients who received URHSCT. 101 cases of URHSCT were divided into four groups: HLA-allele 10/10 match (n = 30), 9/10 (n = 32), 8/10 (n = 31) and 7/10 match (n = 8). The correlation of the HLA with overall survival (OS ≥ 1 year), incidence of acute GVHD (aGVHD) of grade II to IV and relapse rate of primary diseases were evaluated. The results showed that (1) The OS rates in HLA-10/10 and 9/10 groups were higher than that in HLA-8/10 match group (78% and 82% vs 50%, p = 0.39); incidence of aGVHD in the HLA-10/10 were lower than that in HLA-9/10 and HLA-8/10 group (0% vs 10% and 10%; p = 0.28); relapse rates among the 3 groups were close (16%, 18% and 20%, respectively). Although there were only 8 cases in HLA-7/10 match URHSCT, the data indicated that they were safe and effective; (2) Compared to the HLA-10/10 match URHSCT (n = 30), the HLA-C mismatch URHSCT (n = 12) harbored higher incidence of severe aGVHD (0% vs 25%, p = 0.006), longer OS (77% vs 85%, p = 0.30), and tendency to low relapse rate (8% vs17%, p = 0.47); (3) According to HLA-C1/C2, the ligands of inhibitory KIR, the 42 cases of HLA-10/10 match URHSCT and HLA-C mismatch URHSCT were grouped into donor/recipient HLA-C1/C2 match and mis-match subgroups. There was no difference between the two subgroups for OS, incidence of aGVHD and relapse rate (78% vs 80%, 14% vs 20%, and 5% vs 20%). It is concluded that for 0 to 2 locus of HLA allele mismatch in URHSCT, the fewer mismatch numbers, the longer OS, but with similar aGVHD incidence and the relapse rate; triple HLA allele mismatch (HLA-7/10 match) is safe in URHSCT. The HLA-C mismatch may be related to higher incidence of aGVHD and lower relapse rate and prolonged OS, remaining to be further studied.
Adolescent ; Adult ; Alleles ; Child ; Child, Preschool ; Female ; Graft vs Host Disease ; epidemiology ; HLA Antigens ; genetics ; Hematopoietic Stem Cell Transplantation ; methods ; mortality ; Humans ; Male ; Middle Aged ; Recurrence ; Survival Rate ; Young Adult