Acute megakaryoblastic leukemia(AML-M7)is a rare neoplastic hematologic disorder,the pathogenesis is not clearly.Recent research has found many eytogenetic changes in this disease;and also some genes mutation,such as GATAI,p53,RUNXI play very important roles in AMKL.The aim of this article is to review the cytogenetic and molecule mechanism of acute megakaryoblastic leukemia.

Hemoglobinuria, Paroxysmal ; metabolism ; Humans ; Membrane Proteins ; biosynthesis

Objective To analyse the occurrence and prognosis related factors of renal dysfunction in patients with multiple myeloma(MM).Methods During Janaury 1991 and Janaury 2007 seventy-four cases of MM in Department of Hematology,Gernal Hospital of Tianjin Medical University were enrolled in this study.The occurrence,the risk factors and prognosis were analyzed.Results The incidence of renal dysfunction(RD)in MM was 56.8%.Age,hypertention,hemoglobin,serum ALB,GLO,calcium,phosphonium,?2-MG,the percentage of plasma and immature plasma cells in bone marrow,Durie-Salmon stage and type of MM were associated with the incidence to RD with MM by monovariam analysis.Hypertention,serum ALB and ?2-MG were associated with the incidence of RD with MM by multivariant analysis.ALB was the protected factor and the other two were risk factors.The renal function improved rapidly in the patients who received CR or blood transfusion for severe and moderate anemia.Compared with patients of normal renal funtion,RD patients survived shorter and had higher early death rate.Conclusion Hypertention and high tumor burden are risk factors of renal dysfunction in MM.Effective chemothemapy and supportive treatment helped renal function recovery.

Objective To probe the clinical features and possible mechanisms of autoimmunic hemocytopenia complicated with thrombosis.Methods From 2007 to 2008,the clinical and laboratory data of seven patients with autoimmunic hemocytopenia complicated with thrombosis in the hematology department General Hospital tianjin medical university were analysed.Results One of the patients was with Evans syndrome,and another six patients with immuno-related pancytopenia.Three were complicated with lower extremity Veins embolism;two with cerebral vessel and pulmonary artery embolisms respectively;one with splenic artery and coronary artery embolisms respectively.Among them,three were complicated embolism of two parts;six patients had higher D-Dimer level.They were treated with glucocorticoids,cyclosporin A,and immunoglobulin for immunic hemocytopenia and with anti-coagulation therapy(aspirin、heprin and warfarin) for thrombosis.Seven patients' hemogram,signs and symptoms improved gradually since they received immunosuppression and anticoagulation therapy.The symptoms of thrombosis disappeared two weeks later.The degree and extent of thrombosis also alleviated;at the same time,the function of blood coagulation recovered partly or completely.Conclusion Thrombosis is a rare but severe complication of autoimmunic hemocytopenia.Promptly anti-coagulation and immunosuppressive therapies can get ideal therapeutic effects.

Idiopathic cytopenia of uncertain significance is a new term which describes a cytopenia in one or more myeloid lineages that is constant,does not meet the minimal criteria of an MDS and cannot be explained with any other hematologic or non-hematologic diseases.The proposal,diagnosis and therapy of ICUS are reviewed in this paper.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Autoantibodies ; biosynthesis ; Case-Control Studies ; Child ; Female ; Humans ; Immunoglobulin G ; biosynthesis ; Male ; Middle Aged ; Pancytopenia ; immunology ; pathology ; Receptors, Erythropoietin ; physiology ; Young Adult

Objective To explore the diagnosis value of CT-guide percutaneous biopsy in the pulmonary nodules.Methods A total of 101 cases of the pulmonary nodules with unknown causes who underwent Germany-made auto-spring-gun spiral CT-guide percutaneous pulmonary biopsy were studied.Results The accuracy of centesis was 100%.97 cases were succeeded in getting diagnosis,the diagnosis rate was 96.0%.Among them,there were 61 cases of lung cancer,4 cases of malignant pleural mesothelioma,10 cases of metastatic carcinoma,16 cases of tuberculosis,6 cases of inflammatory pseudotumor.Pneumothorax occurred in 8 cases,hemoptysis occurred in 3 cases.The rate of complication was 10.9%.Conclusion CT-guide percutaneous biopsy to the pulmonary nodules is a safe and effective diagnostic means,which has a high diagnosis raze with few complication.

50.0% and increased year by year,the rate of aminoglycoside resistance

Objective: To observe the clinical efficacy of heat-sensitive moxibustion for adjuvant treatment of depression in Parkinson disease and explore its mechanism. Methods: A total of 80 patients with Parkinson disease coupled with depression were randomized into an observation group and a control group, with 40 cases in each group. The control group was treated with levodopa and benserazide hydrochloride tablets and paroxetine tablets, while the observation group was treated with heat-sensitive moxibustion on the basis of the medications in the control group. The treatment course was 2 months. The Hamilton depression scale-17 (HAMD-17), unified Parkinson's disease rating scale (UPDRS) and Parkinson's disease quality of life questionnaire-39 (PDQ-39) were scored before and after the treatment, and the efficacy was evaluated after treatment. Levels of patients' serum dopamine (DA), 5-hydroxytryptamine (5-HT), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were detected before and after the treatment. Results: After treatment, the total effective rate of the observation group was higher than that of the control group (P<0.05). The HAMD-17 scores in the two groups decreased significantly after treatment (both P<0.05), and the score in the observation group was obviously lower than that in the control group (P<0.05). The component scores and total scores of UPDRS in both groups decreased significantly (all P<0.05), and the scores in the observation group were lower than those in the control group (all P<0.05). The score of PDQ-39 in the observation group decreased significantly (P<0.05), and was lower than that in the control group (P<0.05). After treatment, the serum DA and 5-HT levels in the observation group increased significantly (both P<0.05) and the TNF-α and IL-6 levels decreased significantly (both P<0.05), which were statistically different from those in the control group (all P<0.05). Conclusion: Heat-sensitive moxibustion has certain auxiliary effect in treating depression in Parkinson disease, significantly improving clinical symptoms and the quality of life, which may be related to the up-regulation of DA and 5-HT levels and down-regulation of TNF-α and IL-6 levels.

OBJECTIVE: To study the role of follicular helper T (Tfh) cells and galactose-deficient IgA1 (Gd-IgA1) in the pathogenesis of childhood Henoch-Schönlein purpura (HSP) and the correlation between them. METHODS: A total of 36 children with newly-diagnosed HSP were enrolled. They were divided into two groups: HSP nephritis (HSPN) group with 11 children and non-HSPN group with 25 children according to the presence or absence of HSPN. Another 15 children who underwent physical examination at the outpatient service were enrolled as the healthy control group. Flow cytometry was used to measure the proportion of Tfh cells (CD4CXCR5ICOS) in peripheral blood. ELISA was used to measure the levels of interleukin-21 (IL-21) and interleukin-6 (IL-6) in peripheral blood and the serum levels of IgA1 and Gd-IgA1. A Pearson correlation analysis was used to investigate the correlation of serum Gd-IgA1 concentration with Tfh cells and related factors expression in the children with HSP. RESULTS: Both the HSPN and non-HSPN groups had significantly higher proportion of Tfh cells and expression levels of IL-21 and IL-6 in peripheral blood than the healthy control group (P<0.05). The HSPN group had significant increases in the above indices compared with the non-HSPN group (P<0.05). Both the HSPN and non-HSPN groups had significantly higher serum levels of IgA1 and Gd-IgA1 than the healthy control group (P<0.05). The HSPN group had significantly higher serum levels of IgA1 and Gd-IgA1 than the non-HSPN group (P<0.05). In the children with HSP, serum Gd-IgA1 level was positively correlated with Tfh cells proportion and IL-21 and IL-6 levels (P<0.05). CONCLUSIONS Tfh cells and related cytokines and serum Gd-IgA1 are involved in the development of HSP/HSPN. Tfh cells may mediate the increased production of Gd-IgA1.
Child ; Galactose ; Humans ; Immunoglobulin A ; Purpura, Schoenlein-Henoch ; Receptors, CXCR5 ; T-Lymphocytes, Helper-Inducer