Advantages in instrument-assisted soft tissue mobilization for chronic soft tissue injury / 中国组织工程研究

BACKGROUND: Chronic soft tissue injury is easy to occur during daily living, sports training, treatment and rehabilitation of various acute and chronic diseases. Chronic soft tissue injury can cause pain. If there is no good treatment for the injured soft tissue, it is easy to develop limb dysfunctions (such as limited joint movements) due to have cicatricial contraction and adhesion, limited human activity and participation ability, affecting the quality of daily life activities. It can also reduce the effect of sports training or rehabilitation treatment for athletes and patients with various acute and chronic diseases. In recent years, the treatment of chronic soft tissue injury by instrument-assisted soft tissue mobilization has been widely concerned, which has a positive effect on pain relief after chronic soft tissue injury. This technology has been widely studied abroad, but less in China. OBJECTIVE: To summarize the progress of instrument-assisted soft tissue mobilization in the treatment of chronic soft tissue injury. METHODS: PubMed, WanFang, and CNKI were searched. Relevant literature concerning instrument-assisted soft tissue mobilization, chronic soft tissue injury and pain was retrieved and summarized. RESULTS AND CONCLUSION: Instrument-assisted soft tissue mobilization has a positive effect on the improvement of pain and joint limitation caused by chronic soft tissue injury. It has been proved that instrument-assisted soft tissue mobilization can also improve the soft tissue function of healthy people. Instrument-assisted soft tissue mobilization is suggested to be used in clinical treatment and sports training as a means of treatment and prevention. Current basic research on this technology is still insufficient. In the future, in addition to a large number of clinical randomized controlled studies, we should deeply explore its action mechanism to provide theoretical support for clinical application.

Value of circulating galactomannan screening for early diagnosis of invasive aspergillosis in hematological patients / 白血病·淋巴瘤

Objective To detect the value of serum galactomannan (GM) for diagnosis of invasive aspergillosis (IA) in hematological patients. Methods We prospectively evaluated the diagnostic value of twice-weekly screening for circulating Aspergillus fumigatus with sanditch enzyme linked immunosorbent assay. Results On the basis of the analysis of 472 serum samples from 113 episodes of 92 patients, the sensitivity, specificity, positive and negative predictive values of the sandwich ELISA for proven and probable IA cases were 83.3 %, 91.1 %, 78.9 % and 93.1 %, respectively, when samples with 2 consecutive positive results≥0.7 were used. Furthermore, GM antigenemia was detected before the onset of radiologic signs with a median of 7 days (range, 1-14 days), before isolation of Aspergillus with a median of 4 days (range, 1-7 days),and before anti-fungal therapy with a median of 6 days (range, 1-15 days). Conclusion The sandwich ELISA for GM detection is a reliable method for early diagnosis of IA in patients with haematological diseases.

A clinical analysis of myelodysplastic syndrome and aplastic anemia combined with autoimmune disease / 白血病·淋巴瘤

Objective To investigate the characteristics of pathogenesis and therapeutics of myelodysplastic syndrome(MDS)and aplastic anemia(AA)combined with autoimmune disease(AID).Methods Retrospective analysis and follow-up visit of 111 patients with MDS and 56 patients with AA in our hospital were studied.Results There were 9(8.1%)of 111 patients with MDS and 2 (3.6%)of 55 patients with AA coexistent with AID.Autoimmune hemolytic anemia(36.4%)and Behcet Disease(18.2%)were common among those combined with AID.5 patients had AID proceeding to the occurrence of MDS/AA.4 patients had simultaneous occurrence of AID and MDS/AA.2 patients developed AID three years later after the diagnosis of MDS.Conclusion There was a certain intrinsic relationship between MDS/AA and AID.

Roles of interleukin-10 in acute graft-versus-host disease and graft rejection / 中华医学杂志(英文版)

<p><b>OBJECTIVE</b>To study the role of interleukin (IL)-10 in acute-graft-versus-host disease (aGVHD) and graft rejection.</p><p><b>METHODS</b>Serum concentrations of IL-10 in 28 patients who underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) were measured by enzymed-linked immunosorbent assay (ELISA). IL-10 gene expression in peripheral mononuclear cells was measured by reverse-transcriptase polymerase chain reaction (RT-PCR) after transplantation.</p><p><b>RESULTS</b>Seven patients developed grade I GVHD, 7 patients developed grade II-IV GVHD, 4 patients had graft rejection. Before transplantation, the concentrations of IL-10 were higher in patients who later did not developed aGVHD. After transplantation, IL-10 levels increased in patients without aGVHD, but decreased in patients with aGVHD or graft rejection. And IL-10mRNA was more frequent in patients without aGVHD compared to those with aGVHD.</p><p><b>CONCLUSIONS</b>IL-10 plays a negative role in the development of aGVHD and graft rejection.</p>

Study on tumorigenic mechanism of human leukemia cell line in nude mice / 中华血液学杂志

<p><b>OBJECTIVE</b>To investigate the tumorigenic mechanisms of human leukemia cell line HL60-n in nude mice.</p><p><b>METHODS</b>Different clone strains of HL60-n cells were established by limited dilution and their biological features were compared with parental HL-60 cells.</p><p><b>RESULTS</b>The colony yields in soft agar, especially the large colony yields of the high tumorigenic clone strains HL60-n/A, HL60-n/B were significantly higher than that of the HL-60 cells (P < 0.01). There was no significant difference between the low tumorigenic clone strains HL60-n/E, HL60-n/F and the HL-60 cells. Ultrastructurally, the nucleus was highly abnormal, the euchromatic element of nuclear chromatin increased, the heterochromatin sparse, and the microfilaments in cytoplasm increased and disarranged in the high tumorigenic cells as compared with HL-60 cells. Cell cycle analysis by flow cytometer showed higher S phase fractions in the high tumorigenic cells. The killing activities of NK cells to the high tumorigenic clone strains were significant lower than to the contrast (P < 0.01). The histopathological features produced by the low tumorigenic leukemia cells showed that there were many inflammatory cells infiltrated, the majority of them were lymphocytes, and many tumor cells were killed especially in vessel abundant areas. By contrast, there were few inflammatory cells infiltrated in the tumors produced by the high tumorigenic cell strains.</p><p><b>CONCLUSION</b>The mechanism of the high tumorigenic activity of the HL60-n cell line involved higher colony yields in soft agar, higher S phase fraction, decreased susceptibility to NK cell killing, and the inhibition of the host immunity.</p>

Expression of cell adhesion molecules in acute leukemia cell / 中华血液学杂志

<p><b>OBJECTIVE</b>To investigate the role of cell adhesion molecule in the development and extramedullary infiltration (EI) of acute leukemia.</p><p><b>METHODS</b>The expressions of neural cell adhesion molecule (NCAM) gene, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule (VCAM-1) genes in 25 acute leukemia patients bone marrow cells were detected by microarray and reverse transcriptase-polymerase chain reaction (RT-PCR).</p><p><b>RESULTS</b>The expressions of NCAM, ICAM-1 and VCAM-1 gene were significantly higher in acute leukemia cells and leukemia cells with EI than in normal tissues and leukemia cells without EI, respectively, both by cDNA microarray and by RT-PCR.</p><p><b>CONCLUSION</b>The cDNA microarray is a powerful technique in analysis of acute leukemia cells associated genes. High expressions of cell adhesion molecule genes might be correlated with leukemia pathogenesis and infiltration of acute leukemia cell.</p>

Effect of Buthionine Sulfoximine on DAAO/D-Ala System Killing K562e Cells / 中国肿瘤生物治疗杂志

Objective: To investigate the effect of BSO on DAAO/D-Ala system killing K562e cells. Methods: KDFGC cell stably expressing DAAO was obtained by retrovirus transfection. The integration and expression of DAAO gene in KDFGC cells were identified by PCR and in situ hybridization. The killing effects of D-Ala on KDfGC cells treating with Immol/L BSO were observed. Results: PCR and in situ hybridization analysis confirmed integration of DAAO gene in positive clone and expression of it at mRNA level. The IC50 of KDFGC and KDFGC + BSO treating with D-Ala for 24 hours were 10.21 mmol/L and 7.92 mmol/L, respectively. The 95% confidence limits of them were different. Conclusion: BSO can enhance the killing effect of DAAO/D-Ala system on K652e cells.