Acquired aplastic anemia (AA) is a rare heterogeneous disease characterized by pancytopenia and hypoplastic bone marrow.The differential diagnosis should always take in account inherited forms of AA,like Fanconi anemia(FA),dyskeratosis-congenita(DC),and Shwachman-Diamond syndrome (SDS).Patient with transfusion-dependent non-severe aplastic anemia(NSAA),with severe AA (SAA) and very severe AA(VSAA),if an human leukocyte antigen (HLA) matched family donor(MFD) is found,then hematopoietic stem cell transplantation (HSCT) using bone marrow (BM) stem cells is the treatment of choice.If a MFD is not available,the immunosuppressive therapy (IST) with the combination of antithymocyte globulin (ATG) plus cyclosporin (CsA) still represents the first line choice.For transfusion-independent NSAA patients,most hematologists suggests no intervention,however,some studies indicate the patients with transfusion-independent NSAA may benefit from IST,and the rate of progression to SAA and transfusion-dependent NSAA is lower than other observation groups.So a multicenter randomized clinical trial is needed.

Iron deficiency could cause hemoglobin synthesis decrease,and then lead to iron deficiency a-nemia(IDA).The present study has found that incorrect feeding,gastrointestinal disease and deficiency of trace elements are high risks of IDA.Whether febrile seizure is associated with IDA is still controversial.Recent re-search has discovered that infant iron deficiency can lead to poor cognitive inhibitory control,while delayed cord clamping and other measures can effectively prevent IDA in children.Discontinuous complement iron agent can also achieve good effect on treatment.

Objective To evaluate the feasibility of autologous mononuclear bone marrow cells (BMCs) transplantation in patients with anterior myocardial infarction. Methods Twenty-two patients were enrolled in this prospective, nonrandomized, control study (14 patients in cell transplantation group; 8 in control group). All patients underwent standard percutaneous coronary intervention (PCI) and drug therapy. 14 patients in the cell transplantation group were transplanted with autologous mononuclear (BMCs) via a over-the-wire (OTW) balloon catheter slowly placed into the left anterior descending (LAD) coronary artery during inflation. Results One patient in the cell transplantation group died of acute drug eluting stent thrombosis. The other 13 patients and the 8 patients in the control group had no procedure related complications and ventricular arrhythmia. All patients in both groups underwent 3-month and 6-month follow-up, 6 minutes test, 2D Doppler echocardiogram, single photon emission computed tomography and cardiac magnetic resonance imaging (MRI). After 3 months of follow-up, a significant increase of left ventricular ejection fraction (LVEF) determined by ultrasonic cardiography was found [(50.37?7.31)% vs (40.12?5.52)% before transplantation, P =0.000?1] and was also significantly greater compared with the control group [(50.37?7.31)% vs (44.09?3.50)%, P =0.035]. Conclusion The result indicates that selective intracoronary transplantation of autologous mononuclear BMCs seems to be feasible and may improve the left ventricular systolic function.

Objective To investigate blood pressure control the glucose metabolism,cardiovascular risk factors of patients who were regularly followed up at professional hypertension clinics in China.Methods A cross-sectional survey was conducted in 32 004 patients from 127 professional hypertension clinics across China.The questionnaires included case history and related treatment physical examination and laboratory biochemical tests were also taken at the same time.Results The mean blood pressure of overall population was (151 ± 13)/(92 ± 10) mm Hg(1 mm Hg =0.133 kPa).Totally 3424 patients (10.7％) had never taken any anti-hypertension medicine.Among patients treated with anti-hypertension drugs,19 818 were of mono-therapy (69.3％) and 8762 were of combination therapy.The most frequently used drug was reninangiotensin system inhibitor,followed by calcium-channel blocker.Fixed compound preparations accounted for 15.6％.The overall blood pressure control rate (＜ 140/90 mm Hg) was 26.8％,among them,27.7％,30.0％,25.4％ and 21.3％ patients were complicated with coronary heart disease,diabetes mellitus,kidney diseases and cerebral stroke respectively.About 70.3％ hypertensive patients had abnormal glucose metabolism whose mean glycosylated hemoglobin (GHbA1 c) was 7.84％,which was significantly higher than 7.0％,the target value defined by ADA.Even among them,20.2％ patients have never received any anti-diabetic drugs.Low-risk and medium-risk patients accounted for 16.0％.Totally 48.0％ patients were classified in high-risk group and 36.0％ in very high risk group.About half of all patients had different target organ dysfunction.About 49.0％ patients had associated comorbidities.Conclusions Co-existence of hypertension and abnormal glucose metabolism is common in Chinese population.Among these patients,target organ dysfunction and comorbidities are prevalent,but blood pressure is only effectively controlled in less than 30％ patients.Low proportion of combination therapy is one of the reasons for unsatisfied control of blood pressure.It indicates that effective management of hypertension is urgent.

Objective To investigate the relationship between serum of type Ⅲ collagen and arterial compliance in hypertensive patients.Methods One hundred fifty-eight in-patients of hypertension were enrolled.All subjects underwent laboratory measurements including serum PⅢNP,blood-lipid,glucose and high sensitivity C-reactive protein.Carotid to femoral pulse wave velocity(PWVcf),C1 and C2 were measured by a Complior Colson device and DO-2020.Results(1)PWVcf positively correlated with serum PⅢNP(P

Objective To develop a connector between anesthetic machine and oxygen provider for continual oxygen supply to anesthetic machine during field operation.Method According to the principle of three-way block and one-way qas wave,the new connector with two-routes but one-way for the anesthetic machine was made.Result This setting enable the anesthetic machine to connect two oxygen providers at one time.Conclusion With low cost and being easy to install and dissemble,it can be connected to all kinds of anesthetic machine,thus ensuring the persistence work of the anesthetic machine when changing oxygen provider.

Objective:To study the relationship between G protein ? 3 subunit ( GNB3 )C825T variant and plasma renin angiotensin system(RAS) activity in Chinese essential hypertensive patients. Methods: Case control method was used. For 408 essential hypertensive patients who were enrolled in the trial groups, we chose 140 normotensives as control group 1 and 61 health persons with hypertensive familial history as control group 2, respectively. PCR-RFLP method was used to measure the C/T polymorphism. The results were observed by agarose gel eletrophoresis. Results: The frequencies of 825T allele were 45.6% to 56.4% in the three groups. Neither GNB3 genotype distribution nor the frequency of T allele was associated with essential hypertension. But patients with TT genotype had higher aldosterone level and lower angiotensin converting enzyme (ACE) activity than patients with CC genotype. Conclusion:In Chinese, patients with TT genotype had higher aldosterone level and lower angiotensin converting enzyme (ACE) activity.

Objective To establish a rapid assay for the determination of methotrexate (MTX) in serum.Method The assay was based on the ultraviolet absorbance of methotrexate at 306 nm. The separation of the drug was done by high performance capillary electrophoresis (HPCE). The bare fused-silica capillary was 60 cm in total length, 50.5 cm in efficient length and 75?m in diameter. The voltage of 25 kV was applied. The running buffer was 75 mmol/L phosphate, pH7.4. The performance of methodology was evaluated.Result The complete separation of MTX was achieved within 10 min. The linearity of the assay was from 1.1 ?mol/L to 1100.0 ?mol/L. The minimal detection limit was 0.55 ?mol/L.The recovery of MTX was from 88.2% to 98.2%. Within-run precision was 4.2% and between-run precision was ~5.4%. Conclusion The result indicated that the method was an effective method for clinical and scientific research with advantages of rapidity, simplicity and accuracy.

Objective To evaluate the proportion and clinical significance of CD4+CD25+ regulatory T cells in childhood acute lymphocyte leukemia(AEL)during different therapeutic stages.Methods 55 peripheral blood samples from 40 children patients with ALL were detected by muhiparameter flow cytometry with fluoresce-hbeled monoclonal antibody.Results Treg cells phenotypically express not only CD62L but also FoxP3 protein.In patients with ALL standard-risk the proportion of CD4+CD25Hi was(1.04±0.33)% in the first course of induction treatment, (1.60±0.44)% in maintenance treatment groups, and(1.29±0.30)% in complete remission groups respectively,while in patients with ALL the intermediate and high risk during maintenance therapy was(2.24±0.75)%.Conclusion Compared with healthy children,the proportion of Treg ceHs in ALL is significantly higher,and may be related to the effect of chemical treatment and severity of ALL.The elevated proportion of Treg may contribute to disease relapse.

AIM: To investigate the changes of L-arginine/nitric oxide(L-Arg/NO) pathway and the characteristics of L-Arg transport in erythrocytes (RBC) in patients with essential hypertension(EH). METHODS: 12 EH patients were studied with 10 normotensive people as control. The nitric oxide (NO) production was assayed by measuring the nitrite in medium using Greiss reaction. NO synthase activity was measured according to the method described by Ghigo. In order to achieve zero-trans condition, erythrocytes were incubated at 37℃ for 3 h and then L- Arg transport of RBC were determined by measuring the influx of radiolabelled L-arginine by Deliconstantins described method.RESULTS: In EH patients, NO production was lower than that in control (P