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  • 1
    Electronic Resource
    Electronic Resource
    Current status of Type 2 (non-insulin-dependent) diabetic subjects on dialysis therapy in Japan (1993)
    Springer
    Diabetologia 36 (1993), S. 1105-1108 
    Details
    ISSN: 1432-0428
    Keywords: Type 2 (non-insulin-dependent) diabetes mellitus ; end-stage renal disease ; dialysis ; neuropathy ; mortality ; Japan ; chronic glomerulonephritis ; vasculopathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary According to a national survey of dialysis patients in Japan conducted by the Japanese Society for Dialysis Therapy, there were 1,033 patients on dialysis in the Shiga area which has a population of about 1.2 million. Of these 1,033 dialysis patients 140 were the result of diabetic nephropathy. From four hospitals affiliated to Shiga University of Medical Science the medical records of 90 diabetic subjects on dialysis therapy were reviewed and various clinical parameters were analysed and compared with those of patients with chronic glomerulonephritis. Since only one patient had Type 1 (insulin-dependent) diabetes, the remaining 89 with Type 2 (non-insulin-dependent) diabetes were used for this study. The significantly different variables between patients with Type 2 diabetes and chronic glomerulonephritis were age (60.4 vs 54.6 years,p〈0.05), BMI (22.4 vs 20.6 kg/m2,p〈0.001), cardiothoracic ratio (56.4 vs 53.3%,p〈0.001), mean blood pressure (110 vs 117 mm Hg,p〈0.05), serum creatinine (9.0 vs 11.5 mg/dl,p〈0.001), serum urea-N (98.2 vs 115.5 mg/dl,p〈0.001), serum total protein (6.0 vs 6.5 g/dl,p〈0.001) and serum albumin (3.5 vs. 3.9 g/dl,p〈0.001). Serum levels of cholesterol and triglyceride were not significantly different between two groups, though the prevalence of electrocardiogram abnormalities, oedema, neuropathy, myocardial infarction and cerebrovascular diseases was significantly higher in the Type 2 diabetic group. These results suggested that Type 2 diabetic patients with end-stage renal disease were older, more malnurished, fluid overloaded and multi-morbid as a result of vasculopathy and neuropathy. However, the analysis of causes of death in Type 2 diabetic patients (n=24) and patients with chronic glomerulonephritis (n=26) failed to provide evidence of higher risk of cardiac death in the Type 2 diabetic group compared to the group with chronic glomerulonephritis (37.5 vs 34.6%, NS). In the Type 2 diabetic patients on dialysis therapy, malnutrition, fluid overload and neuropathy appeared to be significant factors influencing the outcome of the therapy, while in patients with chronic glomerulonephritis, age and vascular morbidities were considered to be major risk factors for the prognosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374506
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  • 2
    Electronic Resource
    Electronic Resource
    Development of the National Institute of Radiological Sciences electron cyclotron resonance ion source for the heavy ion medical accelerator in Chiba : Proceedings of the 5th international conference on ion sources (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 1087-1089 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The development of an electron cyclotron resonance ion source for the heavy ion medical accelerator in Chiba (HIMAC) injector is reported. The HIMAC is a heavy ion medical accelerator for cancer therapy. The electron cyclotron resonance (ECR) ion source is expected to provide a long lifetime, easy operation, and easy maintenance for medical use. The NIRS-ECR ion source has a single closed ECR stage, and a microwave frequency of 10 GHz is applied. Under the present performance, the output electrical currents of the ions are 2500 eμA for He1+, 300 eμA for C2+, 480 eμA for Ne3+, and 110 eμA for Ar6+. Stability of the intensity is better than 2%. The transmission efficiency through a low-energy beam-transport line with an acceptance of 200 πmm mrad is more than 70%; the typical 50% and 90% emittances of the injection beam with 8 keV/u are 20 and 80 πmm mrad, respectively. These performances satisfy the requirements for radiotherapy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145071
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  • 3
    Electronic Resource
    Electronic Resource
    Transitional change of colony stimulating factor requirements for erythroid progenitors (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 149 (1991), S. 1-8 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The course of the differentiation and proliferation of the human erythroid burst-forming units (BFU-E) to colony-forming units (CFU-E) was directly investigated using a combination of highly purified BFU-E, a liquid culture system, and the following clonal assay. Highly purified human blood BFU-E with a purity of 45-79% were cultured in liquid medium with recombinant human erythropoietin (rEP) and recombinant human interleukin-3 (rlL-3) to generate more differentiated erythroid progenitors. The cultured cells were collected daily for investigating the morphology, the increment in the number of cells and the clonality. Ninety percent of purified BFU-E required not only rEP but also rlL-3 for clonal development. By 7 days of liquid culture, the total cell number increased 237 ± 20-fold above the starting cells, while erythroid progenitors increased 156 ± 74-fold. As the incubation time in liquid culture increased, the cells continuously differentiated in morphology. Replating experiments with rTEP combined with or without rlL-3 showed the following: (1) The number of erythroblasts that were part of erythroid colonies decreased with accompanying erythroid progenitor differentiation and proliferation. (2) As the incubation time in liquid culture increased, erythroid progenitors had a graded loss of their dependency on rlL-3 and a complete loss of dependency was observed after 3 days of liquid culture. At that time 85% of the erythroid progenitors gave rise to colonies of more than 100 erythroblasts which were equivalent to mature BFU-E. These studies provide a quantitative assessment of the loss of lL-3 dependency by BFU-E and indicate that the size of the generated erythroid colonies and their lL-3 requirement correlate with the erythroid differentiated state.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041490102
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  • 4
    Electronic Resource
    Electronic Resource
    Purification of human blood burst-forming units-erythroid and demonstration of the evolution of erythropoietin receptors (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 142 (1990), S. 219-230 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: To facilitate the direct study of the molecular events that control the development of human burst-forming units-erythroid (BFU-E), we have developed a method to purify BFU-E from peripheral blood. Using density centrifugation, rosetting with a mixture of neuraminidase-treated and IgG-coated sheep erythrocytes, positive panning with anti-My10 monoclonal antibody, overnight adherence to plastic dishes, negative panning with monoclonal antibodies, and density centrifugation, human blood BFU-E were purified from 0.04% to 56.6%, a 1,400-fold purification with a 13% yield. More than 90% of purified BFU-E were recombinant interleukin-3 (rlL-3) dependent, which survived for 48 h with rlL-3 in the absence of recombinant erythropoietin (rEP), and 80% gave rise to erythroid bursts of more than 500 hemoglobinized cells. rEP dependency was not evident until after 72 h of incubation in vitro. The purified cells (day 1) were incubated with rlL-3 and rEP in liquid culture for 24 (day 2), 48 (day 3), and 72 (day 4) h and then were transferred into semisolid cultures and incubated until day 15. The size of the erythroid colonies observed in semisolid cultures decreased continuously in association with the incubation time of day 1 purified cells in liquid cultures. The first appearance of colony-forming units-erythoid (CFU-E) that gave rise to colonies of 8 to 49 cells was observed after 72 h of incubation of day 1 cells in the liquid culture. 125I-rEP was incubated for 5 h at 37°C with purified cells (day 1) or with the cells that had been incubated in liquid culture for an additional 24-72 h, and the presence of erythropoietin (EP) receptors was investigated using auto-radiography. Specific binding of 125I-rEP was detected in 19 ± 7% of the initial day 1 BFU-E. The percentage of 125I-rEP-binding to erythroid progenitor cells and the amount of binding continuously increased as day 1 BFU-E matured. 125I-rEP specific binding was observed with all of the erythroid progenitor cells that had been incubated in liquid culture for 72 h. These data demonstrate that primitive BFU-E have a much lower number of EP receptors than CFU-E and develop an increased concentration of EP receptors in association with their maturation and loss of proliferative capacity.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041420202
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    Paper (German National Licenses)
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