OBJECTIVES: To ascertain whether some result of hematological examination could be as reference data for health management of welders. METHOD: The authors conducted the hematological examination of 1,018 welders and 531 control workers of a shipbuilding industry in Ulsan using automatic blood analyzer. RESULTS: The WBC count of welders was lower than that of control on controlling the age and the duration of employment, but changes of other blood cells were not observed. CONCLUSION: We could use the results of hematological examination such as WBC counts as an indicator for subtle changes of health status of welders.
Blood Cells ; Employment ; Ulsan

No abstract available.
Blood Cells* ; Radionuclide Imaging*

No abstract available.
Fetal Blood* ; Stem Cells*

No abstract available.
Antibodies, Monoclonal* ; Blood Cells*

The research aimed to establish the maximum time elapsed between collection and analysis of samples. The blood samples were stored at temperature varying from 200C to 280C. Studied on 32 subjects, all samples were marked by the monoclonal antibodies. Each sample had been analyzed 4 times: within 6 hours, 24 hours, 48 hours and 72 hours after drawing. Epi-info 2000 had been used for statistical analysis the results. Results showed that: the maximum elapse of time for the CD4 was 72 hours, for the CD8 was 24 hours and for the lympho and the WBC's as little time as possible, because the results were very different every second time
Blood ; cells ; Temperature

38 blood samples were divided into 2 groups – normal sample (with 3 groups of cells seen obviously; lymphocyte, mon, gronulocyte on FSC, SSC windows) and abnormal sample group (without these 3 groups of cells).
Antibodies ; cells ; Blood

The initial study of natural protection against HIV-1 infection among exposed uninfected intravenous drug users in Vietnam showed that this people had more immune system with activation than normal people. The peripheral blood monocysts in some people resist disease-induced viruses in vitro by two mechanisms: target cells (T CD4) resist or less sensitivity with HIV-1 virus or inhibit viruses from T CD8 cells
HIV ; epidemiology ; blood ; cells

A total of 47 cord blood collection were analysed for CD 34+ progenitor cells. Results: volume (ml) without anticoagulant 64ml (40-90). Total NC 9.82x108+/- 0.45. Total CD 34+ 1.79x10 +/-1.4. Mean percentage of CD34+: 0.32%+/ 0.24. Given that a transplanted cell dose of 20x106 NC/kg body weight would be sufficient for hematopoiesis, 95% of all stored CB samples would be sufficient for patients up to 10 kg body weight and 36% for patients up to 40 kg body weight.
Fetal Blood ; Cells

We study characteristic of 306 cord blood samples collected at Hung Vuong hospital from 1997 year to 2000 year. The results were the following: as compared with foreign authors’ results we revealed that the median volume of Vietnamese newborn’s cord blood was smaller, there were not significantly different on the median number of nucleated cells, the median number of CD34+ stem cells, the percentage of CD34+ cells as compared with mononuclear cells and the value of the use of cord blood for transplantation; the average percentage of immunologic makers on cord blood cells and peripheral blood cells and in our study was comparable with other author’s results but the percentage of CD2+ and CD19+; hematologic indexes of cord blood in our study were not significantly different as compared with other but the number of granulocytes, red blood cells and hematocrite were smaller; the incidence of infectious diseases was the following: bacterial infection 5.9%; viral infection: HbsAg(+) : 1.79%; anti HCV(+): 1.34%; anti HIV(+): 0.44%; VDRL(+): 0%; anti HTLV-1.2: 0; anti CMV IgM: 0.90%. Anti HBc IgM: 5.3%. Conclusion as compared with foreign authour results we revealed that the median volume of Vietnamses newborn’s cord blood was smaller and there were not significantly different on the median number of nucleated cells, the median number of CD34+ stem cells, the percentage of CD34+ cells as compared with mononuclear cells and the average percentage of immunologic makers. So it is useful in transplantation to treat malignant and congenital diseases in Vietnam.
Fetal Blood ; cells

38 Vietnamese adult healthy people studied on peripheral blood and bone marrow material to investigate on hemopoiesis and distribution of blood cells as well as lymphocytic subsets. The results showed that in peripheral blood, the hematologic and lymphocytic count parameters are sames as medical literature. In bone marrow material, nucleated cell count is in strict range with mean value of 54+/- 16G/L. The three common lines of bone marrow are granulocytic, erythrocytic and lymphocytic lines are distributed in distribution of lymphocytic subsets in bone marrow in comparison to peripheral blood. All subsets are more higher than that of peripheral bood about 2.5 to 4 time times with conversely ratio CD4/8.
Bone Marrow ; Blood Cells