It was developed that a new method for measuring the ratio of pulmonary blood flow tosystemic biood flow by two-dimensional Doppler echocardiography.Qp and Qs blood flow were consid-ered to be propotional to the mitral and tricuspid Doppler flow velocity time integral multipled respectively by mitral or tricuspid valve ring diameters(MVID or TVID),I.e.MVID/TVID was equal to Qp/Qs.With the method,we calculated the Qp/Qs ratio close to 1:1(0.939+/-0.083)in 18 normal Per-sons,0-656+/-0.167 in 15 patients with Tetralogy of Fallot.Qp/Qs in TOF corrected negativly With hemoglobin.Our results demonstrated that conventional Doppler mdthod to calculate the Qp/Os ratio can be simplified.

Objective To explore the effects of osteoblasts on the recovery of hematopoiesis and angiogenesis in acute irradiation injury mice.Methods The femurs of 18 male BALB/c mice were used to prepare the bone marrow osteoblasts, and the rest mice were divided into 3 groups as normal group, saline group and osteoblast group.The mice in normal group received no treatment, and the other two groups were received 6.0 Gy 60Co γ-ray irradiation.After irradiation each mouse of osteoblast group was administered with 2 × 106 osteoblasts through tail vein injection, and equal volume saline was given to each mouse of saline group by the same way.The following factors were measured at 7, 14, 21 d after irradiation, they were the counts of peripheral blood cells and bone marrow mononuclear cells ( BMMNC ) , the percentage of CD34 + cells in BMMNC, the histology changes and micro vascular density (MVD) of bone marrow tissue.Results The counts of peripheral blood cells, BMMNC and hematopoietic tissue area in osteoblast group were higher than those in saline group.The percentage of CD34 + cells in BMMNC and the MVD of bone marrow in osteoblast group were also higher than those in saline group at 7, 14, 21 d after irradiation ( t = 2.46 - 64.51, P ＜ 0.05 ).Conclusions Osteoblasts could significantly promote the recovery of hematopoiesis and angiogenesis in mice after acute irradiation injury.

To study the expression of the bFGF and its receptor in the mouse bone marrow by treatment with acute radioactive injury and Ligustrazine, 56 mice were divided into 3 groups: normal group, radiation-injured group and Ligustrazine group. After irradiation by 6.0 Gy 60Co gamma-ray, each mouse was orally given 0.1 ml Ligustrazine twice a day for 13 days in Ligustrazine group, and each mouse in radiation injured group was orally given equal amount of saline. On the 3rd, 7th, 14th day after irradiation, bone marrow mono-nuclear cells (BMMNC) were counted, and the expression levels of bPGF and bFGFR in bone marrow were evaluated by immunohistochemistry and flow cytometry analysis respectively. On the 3rd, 7th, 14th day after irradiation, expression of bFGF in bone marrow were significantly lower than in normal group (P<0.05 or P<0.01). Expressions of bFGF and bFGFR were much higher in Ligustrazine treated group than that in the control group (P<0.05 or P<0.01). Ligustrazine potentiate the expression of bFGF and bFGFR in bone marrow MNC to recover the bone marrow hematopoiesis inductive microenvironment, which is one of the mechanisms by which Ligustrazine rebuild the bone marrow hematopoiesis after acute radioactive injury.
Bone Marrow Cells/metabolism ; Fibroblast Growth Factor 2/*biosynthesis ; Hematopoiesis/drug effects ; Pyrazines/*pharmacology ; Radiation Injuries, Experimental/*metabolism ; Radiation-Protective Agents/pharmacology ; Receptors, Fibroblast Growth Factor/*biosynthesis

To investigate p120 catenin mRNA expression in Non-Hodgkin's lymphoma (NHL) cell lines (U937, Raji, Jurkat and Molt4) and normal lymphocytes and explore the relationship between p120 catenin and Non-Hodgkins lymphoma, total RNA sample was extracted by using TRIzol and reversely transcripted into cDNA. Polymerase chain reaction was performed to detect mRNA expression of p120 catenin in NHL cell lines U937, Raji, Jurkat and Molt4. Normal lymphocytes were used as control. It was found expressions of p120 catenin 1A and 3A mRNA were high in above-mentioned NHL cell lines, but neither p120 catenin 1A nor 3A was found in normal lymphocytes as shown by RT-PCR. It is concluded that both P120ctn1A and P120ctn3A mRNA transcripts were found in all NHL cell lines U937, Raji, Jurkat and Molt4 but they don't exist in normal lymphocytes, suggesting p120ctn possibly is of importance in diagnosis and therapy of lymphoma.
Catenins/genetics ; Cell Adhesion Molecules/*genetics ; Cell Line, Tumor ; Gene Expression Regulation, Neoplastic ; Jurkat Cells ; Lymphoma, Non-Hodgkin/genetics ; Lymphoma, Non-Hodgkin/pathology ; Phosphoproteins/*genetics ; RNA, Messenger/genetics ; RNA, Messenger/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Tumor Markers, Biological/genetics ; U937 Cells

Objective To explore the effects of cotransplantation with osteoblasts on hematopoietic reconstitution in mice after bone marrow transplantation (BMT). Methods The typical model of syngeneic BMT was established. 18 Balb/c mice were used to prepare the bone marrow nuclear cells and osteoblasts for BMT. The 42 Balb/c mice were randomly divided into 3 group:normal group (6 mice, without any treatment), the single BMT group ( 18 mice, given 2 × 106 bone marrow nuclear cells/each mouse) and the cotransplantation group of HSC with osteoblaats (18 mice,given 2 × 106 bone marrow nuclear cells and osteoblasts/each mouse). The following factors were measured on day 7, 14, 21 after BMT: peripheral blood cells, bone marrow mononuclear cells (BMMNC), the percentage of CD34+ cells in BMMNC (assayed by flow cytometry), the hematopoietic tissue changes (detected by HPIAS-1000 image analysis system) and micro vascular density (MVD) of bone marrow tissue (with immunohistochemistry). Results The levels of periphral WBC, RBC, PLT, BMMNC in the contransplantation group were higher than those in the single BMT group (P＜0. 01 or P＜0. 05). In the contransplantation group, the percentage of CD34+ cells in BMMNC, the hematopoietic tissue area and the MVD of bone marrow were also higher than the single BMT group on the 7th, 14th, 21st day after BMT(P＜0.01 or P＜0.05). Conclusion Cotransplantation with osteoblasts could significantly promote hematopoietic reconstruction in mice after BMT. Cotransplantation may represent a promising means of achieving higher engraftment rate after BMT.

Microwave-assisted extraction was optimized with response surface methodology for HPLC-fluorescence determination of puerarin and daidzein in Radix Puerariae thomsonii.The optimized extraction procedure was achieved by soaking the sample with 70% methanol（1∶15,v/v）for 30 min,and then microwave irradiation for 11 min at a power of 600 W.Coupling the extraction process with HPLC-fluorescence presented good recovery,satisfactory precision,and good linear relation.Compared with a method from the Chinese Pharmacopoeia,the proposed method enables higher extraction efficiency and more accurate analytical results.It can be of potential value in quality assessment of Radix Puerariae thomsonii medicinal materials.

Objective To study the adsorption and separation of licorice flavonoid with macroporous resins. Methods Eight types of macroporous resin were selected to compare their performances in absorbing and desorbing licorice flavonoid. The optimal type for licorice flavonoid was decided, meanwhile, its kinetic curve and dynamic absorbing behavior were studied. Results HPD300 resin possessed higher adsorption and desorption capacity. The appropriate adsorption and desorption conditions were as follows:concentration of sample was 2.0 mg/mL, velocity of sample solution was 1.5 BV/h, volume of sample solution was 2 BV (bed volume);velocity of 80%ethanol was taken as eluant 1.5 BV/h, and the volume was 3 BV. Flavonoid content was increased more than 2 times under above conditions. Conclusion HPD300 macroporous resin showed better comprehensive adsorption property. It can be used to purify and separate licorice flavonoid.

Objective To evaluate the effect of mind-map in health education of elderly patients with knee osteoarthritis in community.Methods 71 elderly patients with knee osteoarthropathy were randomly divided into observation group(n=35)and control group(n=36).The control group received routine oral mode health education,and the observation group applied mind map to health education.Before and after the intervention,the self-designed disease knowledge and compliance questionnaire were used to evaluate the effect of two groups of health education.Results There was no significant difference in score between the two groups(P=0.997).After intervention,the score of disease knowledge questionnaire(20.25±3.01)points in the observation group was higher than(18.17±3.12)points in the control group,the difference was statistically significant(t=2.858,P=0.006).At the 1st,3rd and 6th month,the compliance scores of the observation group were(19.35±3.14)points,(19.68±3.22)points,(20.18±3.42)points,respectively,which of the control group were(17.42±3.11)points,(17.89±3.35)points,(18.32±3.47)points,respectively,the differences between the two groups were statistically significant(t=2.602,2.294,2.274,P=0.011,0.025,0.026).The scores of the observation group questionnaire were all more than 3 points,the difference was statistically significant between the two groups(all P=0.000).Conclusion Using mind map to carry out health education to middle-aged and elderly patients with knee joint disease can help patients master disease knowledge and improve compliance,its effect is better than traditional method.

Objective To study a kind of quantitative diagnosis method with ultrasound tissue characterization on liver fibrosis of the patients with chronic hepatitis B.Methods Measuring the gray scales of the two dimensional ultrasonography of the patients and compare the gray scales with the fibrosis degrees on histopathology of the patients and finding the differences among every two groups.Results The differences of the gray scales compared with the fibrosis degrees on histopathology were meaningful on statistics( F = 34.3, P

Objective To investigate the response of mesenchymal stem cells in mice to mediumdose X-ray irradiation in vitro.Methods The mouse mesenchymal stem cell line C3H10T1/2 was submitted to 3.5 Gy X-ray irradiation.Hoechst33258 staining of adherent cells and Annexin V-FITC staining and flow cytometry analysis of suspension cells were performed respectively to assess cellular apoptosis at 3,6,12,24,48,72 h and 1 week after irradiation.SA-β-gal staining was performed to analyze the cellular senescence at 24,48,72 h and 1 week after irradiation.The mRNA level of both Fas with its ligand FasL and p53 with its downstream target p21 WAF1 were measured by Real-Time PCR analysis.The expression of Fas protein was determined by immunofluorescence staining.Results An increased apoptosis was observed at 3 h after irradiation with apoptosis rate 11.72％ ± 1.61％ ( t =9.01,P ＜0.01 ),the apoptosis rate reached the peak level at 12 h 20.52％ ± 1.96％ (t =16.27,P ＜ 0.01 ),and then declined progressively to normal level at 48 h 4.93％ ±0.46％ (t =2.26,P ＞0.05).The SA-β-gal positive rate of post-radiation cells at 72 h was 53.33％ ± 5.62％,significantly higher than that of normal control 3.24％ ± 0.39％ (t =17.77,P ＜ 0.01 ).The level of Fas,FasL mRNA was found to be elevated 3 h after irradiation with a peak at 12 h,and no differences were found l week later.The level of Fas protein was observed to reach the peak at 12 h after irradiation.The occurrence of peak level of Fas/FasL mRNA and protein was consistent with that of apoptosis of C3H10T1/2 cell.A transient up-regulation of p53,p21 WAF1 mRNA expression was found at 12 h after irradiation followed by a significant increase later at 72 h after irradiation.The occurrence of the two peaks of p53,p21WAF1 mRNA expression were coincident with that of cellular apoptosis and senescence,respectively.The levels of p53,p21WAF1 mRNA in senescence group were significantly higher than those of apoptosis group ( t =17.85,13.36,P ＜ 0.01 ).Conclusions The MSC cell line C3H10T1/2 was sensitive to medium-dose X-ray irradiation.Cell apoptosis occurred immediately after irradiation and cellular senescence happened at advanced stage.Both Fas/FasL and p53/p21 WAF1 signal pathway mediate the injury of C3H10T1/2 cell to medium-dose X-ray irradiation exposure.