Impact of change of ideal cardiovascular behavior and related factors on healthy vascular aging / 中华心血管病杂志

Objective: To investigate the impact of change of ideal cardiovascular behavior and related factors on healthy vascular aging(HVA). Methods: This study was a multi-center cross-sectional survey. Six thousand three hundred and sixteen participants who underwent at least 2 healthy examinations from 2006 to 2015 at 11 hospitals, including Kailuan Hospital and so on, and examined brachial-ankle pulse wave velocity (baPWV) during 2010 and 2016, with available information about cardiovascular behavior and factors were included. The cardiovascular health score (CHS) was calculated. Basic CHS was collected from the first examination. The second CHS derived from the healthy examination in the same year of baPWV examination. Change of cardiovascular health score (ΔCHS) was calculated. Participants were defined into 5 groups according to ΔCHS, namely ΔCHS≤-2 (n=2 166), ΔCHS=-1 (n=1 284), ΔCHS=0 (n=1 187), ΔCHS=1 (n=860), and ΔCHS≥2 (n=819). Participants' characteristics, value of baPWV and proportion of HVA were compared among different groups. Multiple logistic regression analysis was used to investigate the association between ΔCHS and HVA. The ΔCHS was recalculated and included in multiple logistic regression analysis model again after each component of the cardiovascular health metrics was removed separately in order to investigate effects of removal factors on HVA by observing changes in effect values. Results: The percentage of the participants with HVA in the group of ΔCHS≤-2, ΔCHS=-1, ΔCHS=0, ΔCHS=1 and ΔCHS≥2 were 23.3%(505/2 166), 27.8%(357/1 284), 28.7%(341/1 187),31.9%(274/860) and 33.9%(278/819), respectively. After adjustment for age, sex, income, education, alcohol consumption and the basic CHS, a significant positive association between ΔCHS and proportion of participants with HVA was observed (OR=1.50, 95%CI 1.44-1.56). Multiple regression analysis after removing each single cardiovascular behavior or factor showed that the OR value decreased as follow systolic blood pressure (OR=1.04, 95%CI 1.00-1.09), fasting blood glucose (OR=1.14, 95%CI 1.09-1.18), physical exercise (OR=1.16, 95%CI 1.11-1.21), salt intake (OR=1.17, 95%CI 1.12-1.22), body mass index (OR=1.18, 95%CI 1.13-1.23), smoking(OR=1.18, 95%CI 1.13-1.23) and total cholesterol (OR=1.20, 95%CI 1.16-1.24). Conclusion: The improvement of every ideal cardiovascular behavior and factor is associated with the increase of the proportion of HVA population.

Therapeutic Effects of Ultrasound-Guided Injection of Botulinum Toxin Type A into the Cricopharyngeus Muscle for Cricopharyngeal Dysfunction / 中山大学学报(医学科学版)

[Objective] To investigate the feasibility and effectiveness of using ultrasound-guided cricopharyngeal (CP) botulinum toxin (BTX) injection to treat cricopharyngeal dysfunction after brainstem infarction.[Method] A patient with dysphagia caused by subacute lacunar infarction in the right pontobulbar junction was diagnosed with incomplete opening of cricopharyngeal muscle by videofluoroscopic swallowing study (VFSS).After precisely locating the CP muscle with catheter balloon and ultrasound,we injected BTX (25 U/0.8 mL) into the left CP muscle using the out-of-plane approach technique.[Result] After the injection,the patient made great progress in swallowing.He was able to eat porridge independently without bucking on the 5th day,while soft rice on the 8th day and sip water.Two weeks after the injection,VFSS showed that the bolus progressed into the esophagus fluently without the route getting narrow or broken off,and hardly found residue in pharynx,which suggested that the CP muscle could open properly.[Conclusion] Cricopharyngeal injection of BTX guided by ultrasound is a safe and effective way to treat cricopharyngeal dysfunction after brainstem infarction,which is also convenient to operate and deserves to be disseminated after the further studies proves its effectiveness.

Effect of Human Umbilical Cord Blood-Derived Mesenchymal Stem Cells on the Proliferation and Apoptosis of Leukemic Cells and Its Mechanism / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the effects of human umbilical cord blood-derived mesenchymal stem cells(HUCMSC) on the leukemic cell line HL-60 and acute lymphoblastic leukemia cell line Jurkat as well as the role of CXCL12/CXCR4.</p><p><b>METHODS</b>HL-60 cells and Jurkat cells were co-cultured with human umbilical cord blood mesenchymal stem cell (HUCMSC), and the model was treated with G-CSF, AMD3100 and their combination. The cell viability and cell cycle were measured by Cell Counting Kit-8 (CCK-8), the apoptosis and the cell-cycle analysis were assessed by flow cytometry with the Annexin V/PI double staining. The expression of surface CXCR4 protein and total CXCR4 protein of leukemic cells were detected by flow cytometry and Western blot respectively.</p><p><b>RESULTS</b>HUCMSC could decrease the viability of HL-60 cells and Jurkat cells, as well as the percentage of apoptotic cells, they could also increase the number of G/Gcells, while G-CSF and AMD3100 could reduce the proliferation of HL-60 cells and Jurkat cells in HUCMSC co-culture model, destructed the anti-apoptotic effect of HUCMSC on HL-60 cells and Jurkat cells, and the combination of 2 drugs resulted in a synergistic effect. The G-CSF could reduce the expression of surface CXCR4 protein and total CXCR4 protein in leukemic cells, while AMD3100 could only decrease the expression of surface CXCR4 protein of leukemia cell membrane, having no effect on the expression of CXCR4 protein in cytoplasm.</p><p><b>CONCLUSION</b>Human umbilical cord blood mesenchymal stem cells can inhibit the proliferation and apoptosis of acute leukemia cells and increase the number of G/Gphase cells in leukemic cells. The AMD3100 can decrease the expression of surface CXCR4 protein in leukemia cells, G-CSF can decrease expression of total CXCR4 protein as well as membrane CXCR4 protein. Both of them can block the CXCL12/CXCR4 signal axis, weakening the relationship between leukemia cells and microenvironment. And on the basic of HUCMSC influenced leukemia cells' growth and proliferation, the cell viability will be weakened, its apoptosis will be promoted, and the percentage of G/Gphase cells in leukemia cells will be decreased.</p>

Expression of HOXB4, PRDM16 and HOXA9 in Patients with Acute Myeloid Leukemia and Its Clinical Significance / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate HOXB4, PRDM16 and HOXA9 gene expression in patients with acute myeloid leukemia (AML) and its clinical significance.</p><p><b>METHODS</b>Real-time quantitative PCR (RT-qPCR) with SYBR Green assay was used to detect the expression of HOXB4, PRDM16 and HOXA9 gene in AML patients (40 cases), the patients with complete remission (9 cases) and patients with non-malignant hematologic diseases as control (10 cases). The relationship between the expression levels of gene HOXB4, PRDM16, HOXA9 and clinical features was investigated by statistical analysis.</p><p><b>RESULTS</b>The gene expression levels of HOXB4, PRDM16, HOXA9 in newly diagnosed or relapsed AML patients were significantly higher than those in patients with non-malignant hematologic disease (P < 0.05). It was observed that the expression of HOXB4 gene in newly diagnosed or relapsed patients positively correlates with leukemic blasts in bone marrow (r = 0.39). The expression levels of HOXB4, PRDM16 and HOXA9 positively correlate with each other. There was statistical significance among gene expressions in different phases (newly diagnosed, relapse, remission). No correlation was observed between expression levels of HOXB4, PRDM16, HOXA9 and chromosome risk status. It was noticed that expression levels of HOXB4, PRDM16, HOXA9 genes were lower in the patients achieved remission after two courses of chemotherapy than those in the other. And high expression group of each gene had a lower remission rate than that in the low expression group.</p><p><b>CONCLUSION</b>The expression level of HOXB4, PRDM16, HOXA9 genes and leukemic blasts somewhat correlate with curative effect and prognosis. The expression of HOXB4, PRDM16, HOXA9 genes is higher in newly diagnosed and relapsed leukemia patients, and lower in the patients acquired CR/PR. High expression of HOXB4, PRDM16, HOXA9 genes predicts an adverse prognosis.</p>

Effects of HOXB4-transfecting directly and HOXB4-transfected HUCMSC on in vitro expansion of human umbilical cord blood CD34+ cells / 中国实验血液学杂志

This study was purposed to investigate the difference of nucleated cell (NC) count, CD34(+) cell ratio and expansion multiple, cell cycle and colony formation capability in in vitro expanded human umbilical cord blood CD34(+) cells from HOXB4-transfecting directly and HOXB4-transfected human umbilical cord mesenchymal stem cells (HUCMSC) by means of prepared feeder layers of HUCMSC. The HUCMSC were divided into 2 groups:first group, in which HOXB4 gene was transfected into HUCMSC by using lentiviral vecfor, and feeder layers were set up; and second group in which feeder layers for HUCMSC of non-transfected HOXB4 gene were set up. The CD34(+) cells were separated from HUCB by magmatic activated cell sorting(MACS). After culture in medium with cytokines for 2 days, CD34(+) cells were divided into 5 groups, including control group and experimental group. The control groups included CD34(+) cells as group A (blank control group) and GFP-CD34(+) cells as group B (negative control group) and experimental groups included HOXB4-CD34(+) cells as group C, HUCMSC+CD34(+) cells as group D, HOXB4-HUCMSC+ CD34(+) cells as group E and cells in all groups were cultured in vitro. The number of nucleated cells were counted at day 6, 10, 14 of culture and CD34 immunophenotypes, cell cycle and colony forming capability were measured at day 10 of culture in different conditions. The results indicated that HOXB4 gene could be transfected into HUCMSC by lentiviral vector and feeder layers were set up successfully. After culture for 14 days, the nucleated cells in 5 groups could be amplified effectively, and the expansion levels in 5 groups were in order HOXB4-HUCMSC+CD34(+) cell group> HOXB4-CD34(+) cell group>HUCMSC+CD34(+) cell group> control groups (P < 0.05). At day 10 of in vitro expansion the CD34(+) cell percentage decreased significantly in all groups, while the number of CD34(+) cell increased in experiment groups, which were in order HOXB4-CD34(+) cells group> HOXB4-HUCMSC+CD34(+) cell group>HUCMSC+CD34(+) cell group>control groups (P < 0.05). The cell cycle detection showed that the percentage of cells in S+G2/M phase in experiment groups were higher than that in control groups (P < 0.05), and percentage of cells in HOXB4-HUCMSC+CD34(+) cells group was higher (41.57%) than that in HOXB4-CD34(+) cells group(37.87%) and HUCMSC+CD34(+) cell group (28.65%) (P < 0.05). There was no statistical difference in the CFU number between HOXB4-HUCMSC+CD34(+) cell group and HOXB4-CD34(+) cell group, which were both higher than that in HUCMSC+CD34(+) cell group and control groups (P < 0.05).It is concluded that the CD34(+) cells cultured on HOXB4-HUCMSC feeder layers can be amplified significantly and kept the characteristics of stem cells, The feeder lager of HOXB4-HUCMSC is relative safe for amplification of CD34(+) cells in vitro, it possesses the potential useful value.

Recombinant human thrombopoietin in combination with cyclosporin A as a novel therapy in corticosteroid-resistant primary immune thrombocytopenia / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The management of patients with refractory immune thrombocytopenia (ITP) is challenging, as there is no standard treatment option. The aim of this study was to investigate the efficacy of recombinant human thrombopoietin (rhTPO) in combination with cyclosporin A (CsA) for the management of patients with corticosteroid-resistant primary ITP.</p><p><b>METHODS</b>Thirty-six patients with corticosteroid-resistant ITP were randomly divided into an observation group and control group. In the observation group, 19 patients received subcutaneous injection of rhTPO at a dose of 1 µg/kg (300 U/kg) once daily up to day 14. Simultaneously they also received oral CsA at a dose of 1.5-2.0 mg/kg twice daily for three months. In the control group, rhTPO alone was administered subcutaneously at 1 µg/kg once daily in the other 17 ITP patients for 14 consecutive days and then the treatment was withdrawn.</p><p><b>RESULTS</b>There was no significant difference in the response rate at the end of the first week after treatment initiation between the observation group and the control group (63.2% vs. 58.8%, P > 0.05), neither was there at the end of the second week (89.5% vs. 94.1%, P > 0.05). However, the relapse rate in the observation group was significantly lower than that in control group at the end of the first (17.7% vs. 50.0%, P < 0.05), second (29.4% vs. 68.8%, P < 0.05) and the third month (29.4% vs. 87.5%, P < 0.01). In addition, rhTPO plus CsA were well tolerated and adverse events recorded were mild.</p><p><b>CONCLUSIONS</b>Combination therapy with rhTPO and CsA was effective in the management of patients with corticosteroidresistant ITP, with a relatively short time to response and low recurrence rate. It might be considered as a potential secondline treatment regimen for ITP.</p>

The induction and function study on dendritic cells derived from blasts from patients with acute myelogenous leukemia / 中国实验血液学杂志

To investigate the induction method and function of dendritic cells (DC) derived from acute myelogenous leukemia (AML) blasts in vitro, cytokine-supplemented suspension cultures of leukemia blasts in 25 AML patients were performed. Mononuclear cells were cultured for 8 to 12 days using recombinant human granulocyte-macrophage colony stimulating factor (rhGM-CSF), recombinant human interleukin-4 (rhIL-4) and recombinant human tumor necrosis factor-alpha (rhTNF-alpha). Morphology, phenotype, cytogenetics, and function of induced cells were studied. The results showed that after culture for 3 days, cells in 20/25 AML cases demonstrated an increase in size with dendritic morphology. After culture for 8 - 9 days, the percentage of such cells reached peak. When cultured for 12 days, the total number of cells and the number of cells with DC morphology decreased greatly. Phenotypic analyses of cells (11/20 cases) were measured by flow cytometry before and after culture. Before culture, cells did not express CD1a, CD80 and CD83, while expressed CD54, CD86 and HLA-DR with low frequency. After culture, cells upregulated CD1a, CD80, CD83, CD54, CD86 and HLA-DR significantly. A marked increase of the T-cell stimulatory capacity could be generated in Allo-MLRs. FISH confirmed the leukemic origin of generated cells. In conclusion, leukemia-derived DC can be generated from AML blasts using cytokine combination (GM-CSF, IL-4, and TNF-alpha) in vitro.

Effect of neuromuscular electric stimulation on swallowing function in patients with cerebral vascular accident / 中华物理医学与康复杂志

0.05).After treatment,in neuromus- cular electric stimulation therapy group and ice-massage therapy group,SSA scores and degrade of SaO_2 were improved. There was significant difference between before and after treatment(P

Effects of early rehabilitation on upper extremity function of patients with shoulder-hand syndrome after stroke / 中国康复理论与实践

@#ObjectiveTo study the effects of early rehabilitation on symptom, range of motion (ROM) and motor function of upper extremity of patients with shoulder-hand syndrome after stroke.Methods47 patients were divided into two groups,early rehabilitation group and non-early rehabilitation group.Two groups were treated with comprehensive rehabilitation. The passive ROM, the pain and motor function of affected limb was assessed by Fugl-Meyer Assessment.The evalution was done in pre-treatment and post-treatment respectively. Results1.The passive ROM decreased and the pain of affected limb of the early rehabilitation group were less than the non-early rehabilitation gronp when the shoulder-hand syndrome occour.2.After comprehensive rehabilitation treatment,their clinical symptom ROM and motor function of upper extremity impoved significantly in patients with shoulder-hand syndrome after stroke( P<0.05).The early rehabilitation treatment has better effects. Conclusions The early rehabilitation treatment could decrease the degree of their passive ROM decrease and the pain of affected limb in patients with shoulder-hand syndrome after stroke,and the patients who accepted earlyrehabilitation seemed easly to improve by comprehensive treatment.

Expression of nm23-H(1) mRNA in Bone Marrow Cells from Patients with Myelodysplastic Syndrome and Its Clinical Implication / 中国实验血液学杂志

The purpose of this investigation was to explore the expression of nm23-H(1) gene in patients with myelodysplastic syndrome (MDS) and evaluate the relationship between nm23-H(1) expression and therapeutic outcomes. Semi-quantitative RT-PCR was used to detect the expression of nm23-H(1) mRNA in marrow mononuclear cells from 28 MDS patients and 15 normal subjects. nm23-H(1)/GAPDH ratio >/= 0.5 was believed to a positive case. The expression of nm23-H(1) was positive in 24 of 28 MDS patients, and the average level was 0.89 +/- 0.56. nm23-H(1) mRNA was negative in normal controls. The overexpression of nm23-H(1) mRNA in MDS patients could predict outcome of treatment and prognosis for MDR patients.