Cyclosporin A (CsA) has been used clinically as an immunosuppressive drug to prevent organ transplant rejection and in basic research as a mitochondrial permeability blocker. It has been reported that CsA has a protective role in severed neurons and a neurotrophic effect in neuronal cells. However, the molecular mechanisms underlying the stimulation of neuronal cell proliferation by CsA have not yet been elucidated. In our current study, we investigated CsA responsive proteins in PC12 cells using a systematic proteomic approach. The viability of these cells following CsA treatment increased in a dose- and time-dependent manner. Proteins in the CsA-treated PC12 cells were profiled by two-dimensional gel electrophoresis (2-DE) and identified by matrix-assisted laser desorption ionization time-of flight (MALDI-TOF) and electrospray ionization quadupole time-of-flight mass spectrometries (EIQ-TOFMS). This differential expression analysis showed significant changes for 10 proteins (6 up-regulated and 4 down-regulated) upon CsA treatment that were related to cell proliferation, metabolism and the stress response. These proteomics data further our understanding of the proliferation mechanisms of PC12 cells exposed to CsA and demonstrate that our methodology has potential to further elucidate the mechanisms and pathways involved.
The purpose of this study was to present basic data in the nursing practice for the management of living kidney donor by understanding the nature and meaning of kidney donors, experiences. The research subjects were 11 living kidney donors who had donated from Mar 1991 to Feb. 1994 and discharged from the 3 hospitals in Pusan. Data has been collected by Intensive interview with donors. The data analysis has made by phenomenological method of Van Kaam for understanding the phenomenon and meaning of their experiences. The experiences of kidney donors were analyzed into the 4 situations, that is,'motivation of kidney donor', 'decision time to make kidney donation', 'pre-opperation','after donation'. The descriptive expression and common elements were drawn from original data of each situation on the basis of subjects' own words. From each situation, the com-mon elements of kidney donors' experiences were integrated, summarized and described as follows 1. Motivation of kidney donation They wanted to donate their kidney because of empathy of pain on the groung of love to the recipient and with exppectation of successful kidney transplant or as a solution of economic difficulty. 2. Experiences in deciding to make kidney do-nation In deciding to make kidney donation, donors had love toward the recipients. But they experienced conflict too. 3. Experiences before being operated on donated kidney In experiences from deciding to make kidney do nation to preoperation, donors had love toward the recipients. But they also felt anxiety or dissatisfaction. Therefore, they controlled their mind by their faith, support of medical staff or support of society. And they experienced regret for the sociological cognition or financial apprehension. 4. Experiences after kidney donation After kidney donation, donors experienced satis-faction and accompplishment in spite of mental and physical discomfortness, while they felt sense of loss / disappointment, repentance, regret, and apprehension of progress toward their condition. Thus, kidney donors donated their kidney on the ground of empathy and love to the recipient and with expectation of successful kidney transplant. But during the process of kidney donation, they ex perienced conflict, love, anxiety, regret, apprehension of economy. And after donation, they felt sense of satisfaction and accomplishment, while they felt sense of discomfortness, loss / disappointment, re-gret, repentance, or apprehension of progress toward their condition. This result contribute to nurses' role not only for the management of living kidney donors but also for the management of cadaver donors' family.
This study was conducted to know the optimum conditions for overwinter culture of sweetpotato stems in PE film house. The stems will be used as transplant shoots in the next year instead of sprouts produced from storage roots. Sweetpotato stems were cut at field on harvest season and planted in PE film house under three different conditions of PE film mulching, tunnel, or mulching plus tunnel in comparison with the non-treatment of PE film on October 10 and November 10. The survival rate of sweetpotato stems, which was evaluated on April 10 after overwinter, was higher in the treatment planted on October 10 than that on November 10, and with PE film treatments, it was higher in tunnel or mulching plus tunnel than that of the non-treatment of PE film. The survival rate of sweetpotato stems to planting densities was 95-96% in 10$\times$2cm (333 stems/$m^2$) or in 10$\times$4cm (250 stems/$m^2$) when compared with 10$\times$2cm (500 stems/$m^2$). The survival rate under low temperature showed 95% until 20 days at 5$\pm$1$^{\circ}C$, and 0% within 5 days at 2$\pm$1$^{\circ}C$. From these results, it was concluded that there were optimum conditions that cutting time is middle October, planting density is 10$\times$3cm, and minimum maintenance temperature is 5$^{\circ}C$ in growing conditions of sweetpotato stems. Root yield produced by trans-planting shoots using the stems was similar to yield by shoots produced from roots, and the survival rate was not different among varieties.
In the presidential new-year address in January 2, 2009, the President declared that 17 kinds of new driving force of growth that could create high-added value be selected to step up job creation and an increase in national wealth. The Ministry of Strategy & Finance announced plans for the 17 kinds of new driving force of growth after the presidential address. Specifically, that ministry announced an ambitious plan to select health care service named 'Global Health Care' as one of the five service industries that could create high-added value in a move to provide jobs to approximately 7,000 people and produce pervasive economic effects coming up to a trillion and 10 billion won. To attain the goal, several action plans were mapped out to globalize domestic medical institutions, to rearrange the relevant law and system for the purposes of raising awareness of domestic medical institutions among foreign patients and improving their accessibility and post-satisfaction level, and to lure lots of foreign patients through financial assistance. At the same time, the government announced plans to lure severe patients such as those in want of surgery or organ transplant, cancer patients or patients with heart diseases to create high-added value on a long-term basis. Thus, the government announced that it planned to formulate such strategies and to enter an agreement with foreign governments to attract plenty of foreign patients. In fact, however, there are little full-scale evaluation of medical tourism though it's been a year since it was introduced, and there are few actual efforts to implement what the government announced, either. According to the results of the evaluation of medical tourism, domestic hospitals are said to undergo little significant changes after the introduction of medical tourism, which shows that they take a dim view of medical tourism instead of having expectations for that. The medical tourism industries in major Asian countries have been dynamized, and there are several factors of their success. First of all, they are successful in creating new market opportunities by incorporating related industries such as medicine, tourism and IT and in developing medical tourism products and differentiated marketing by taking advantage of their competitive edge. They have offered full-fledged assistance to this sector, and another reason is the improved international credibility of their medical service. If our country fails to pinpoint our problems in consideration of the cases of the Asian countries or to provide appropriate financial aid, our country is bound to lag behind them. Given this reality, how to assess medical tourism and what challenges this sector is confronted with are discussed.
Yoo, Keon Hee;You, Dong Kil;Lee, Soo Hyun;Sung, Ki Woong;Cho, Eun Joo;Koo, Hong Hoe
Clinical and Experimental Pediatrics
/
v.48
no.2
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pp.178-185
/
2005
Purpose : The purpose of this study was to evaluate the outcome of children with juvenile myelomonocytic leukemia(JMML) treated with allogeneic hematopoietic stem cell transplantation(allo-HSCT). Methods : Eleven JMML patients aged 8-39 months underwent allo-HSCT. The sources of grafts were unrelated donors(n=7), HLA-matched siblings(n=3) and an HLA 1-antigen mismatched familial donor. All patients had received chemotherapy ${\pm}13$-cis-retinoic acid(CRA) before transplant, and CRA was used, posttransplant, in six patients. Results : Only three patients were in complete remission(CR) at the time of transplantation. Initial chimeric status revealed complete donor chimerism(CC) in five patients, mixed chimerism(MC) in five and autologous recovery(AR) in one. One patient with MC having persistent splenomegaly eventually turned to CC and CR after rapid tapering of cyclosporine, combined with daily use of CRA. An AR case relapsed shortly after transplant but was rescued with second, unrelated cord blood transplantation. Ultimately, six patients are alive, event-free, with a median follow-up of 15.5 months posttransplant. All three deaths occurred in patients who failed to achieve CC, leading to disease progression. Conclusion : We suggest that graft-versus-leukemia effect play an important role and CRA a possible role in posttransplant leukemic involution in JMML. In patients whose leukemic burden is still high with MC after transplant, early tapering of immunosuppressants and introduction of CRA might provide a chance of a cure for some patients.
Purpose Glomerular filtration rate(GFR) is an important indicator for the diagnosis, treatment, and follow-up of kidney disease and is also used by healthy individuals for drug use and evaluating kidney function in donors. The gold standard method of the GFR test is to measure by continuously injecting the inulin which is extrinsic marker, but it takes a long time and the test method is complicated. so, the method of measuring the serum concentration of creatinine is used. Estimated glomerular filtration rate (eGFR) is used instead. However, creatinine is known to be affected by age, gender, muscle mass, etc. eGFR formulas that are currently used include the Cockroft-Gault formula, the modification of diet in renal disease (MDRD) formula, and the chronic kidney disease epidemilogy collaboration (CKD-EPI) formula for adults. For children, the Schwartz formula is used. Measurement of GFR using 51Cr-EDTA (diethylenetriamine tetraacetic acid), 99mTc-DTPA (diethylenetriamine pentaacetic acid) can replace inulin and is currently in use. Therefore, We compared the GFR measured using 99mTc-DTPA with the eGFR using CKD-EPI formula. Materials and Methods For 200 kidney transplant donors who visited Asan medical center.(96 males, 104 females, 47.3 years ± 12.7 years old) GFR was measured using plasma(Two-plasma-sample-method, TPSM) obtained by intravenous administration of 99mTc-DTPA(0.5mCi, 18.5 MBq). eGFR was derived using CKD-EPI formula based on serum creatinine concentration. Results GFR average measured using 99mTc-DTPA for 200 kidney transplant donors is 97.27±19.46(ml/min/1.73m2), and the eGFR average value using the CKD-EPI formula is 96.84±17.74(ml/min/1.73m2), The concentration of serum creatinine is 0.84±0.39(mg/dL). Regression formula of 99mTc-DTPA GFR for serum creatinine-based eGFR was Y = 0.5073X + 48.186, and the correlation coefficient was 0.698 (P<0.01). Difference (%) was 1.52±18.28. Conclusion The correlation coefficient between the 99mTc-DTPA and the eGFR derived on serum creatinine concentration was confirmed to be moderate. This is estimated that eGFR is affected by external factors such as age, gender, and muscle mass and use of formulas made for kidney disease patients. By using 99mTc-DTPA, we can provide reliable GFR results, which is used for diagnosis, treatment and observation of kidney disease, and kidney evaluation of kidney transplant patients.
Background: Numerous studies of safe, long term preservation for lung transplantation have been performed using ex vivo models or in vivo single lung transplantation models. However, a safe preservation time which is applicable for clinical use is difficult to determine. We prepared LPDG solution for lung preservation study. In this study we examined the efficacy of LPDG(low potassium dextran glucose) solution in 24-hour lung preservation by using a sequential bilateral canine lung allotransplant model. Material and Method: Seven bilateral lung transplant procedures were performed using weight-matched pairs(24 to 25kg) of adult mongrel dogs. The donor lungs were flushed with LPDG solution and maintained hyperinflated with 100% oxygen at 1$0^{\circ}C$ for a planned ischemic time of 24 hours for the lung implanted first. After sequential bilateral lung transplantation, dogs were maintained on ventilators for 3 hours: arterial resistance were determined if the recipients hourly after bilateral reperfusion and compared with pretransplant-recipient values, which were used as controls. After 2hours of reperfusion, the chest X-ray, computed tomogram and lung perfusion scan were performed for assessmint of early graft lung function. Pathological examinations for ultrastructural findings of alveolar structure and endothelial structure of pulmonary artery were performed. Result: Five of seven experiments successfully finished the whole assessments after bilateral reperfusion for three hours. Arterial oxygen tension in the recipients was markedly decrased in immediate reperfusion period but gradually recovered after reperfusion for three hours. The pulmonary artery and pulmonary vascular resistance showed singificant elevation(p<0.05 versus control values) but also recovered after reperfusion for three hours(p<0.05 versus immediate period value). The ultrastructural findings of alveolar structure and endothelial structure of pulmonary artery showed reversible mild injury in 24 hours of lung perservation and reperfusion. Conclusion : This study suggests that LPDG solution provides excellent preservation in a canine model in which the dog is completely dependent on the function of the transplanted lung.
After the introduction of cyclosporin, the graft survival rate of renal transplant and patients' life expectancy have been greatly improved. However, cyclosporin is known to cause several undesirable side effects, one of which is hyperuricemia, which may subsequently cause gouty nephropathy and graft dysfunction. The purpose of this study was to evaluate the frequency and predisposing factors of hyperuricemia in cyclosporin-treated patients within one year of kidney transplantation and uricosuric efficacy of benzbromarone. The patients who were treated with cyclosporin after kidney transplantation in 1998 and the patients who were treated with benzbromarone for the control of cyclosporin-induced hyperuricemia in 1999 were investigated retrospectively. Among the 76 patients in cyclosporin-treated patients in 1998, hyperuricemia occurred in 55 patients $(72.4\%)$ and the mean time from kidney transplantation to occurrence of hyperuicemia was $5.0\pm8.0$ months. In 1999, 22 patients were treated with benzbromarone for hyperuricemia and their mean time from kidney transplantation to occurrence of hyperuricemia was $4.5\pm10.4$ months. Acute rejection developed in one patient $(4.8\%)$ out of 21 normo-uricemic patients and 11 patients $(20.0\%)$ out of 55 hyperuricemic patients in 1998. The difference of rejection rate in these two groups was significant (p<0.001). There was no difference of rejection rate between before and after treatment of benzbromarone. Cyclosporin trough levels did not show a significant correlation with the serum uric acid levels among the three groups. However, hyperuricemic patients showed significantly higher serum creatinine levels than patients with normal uric acid levels (p<0.001). Benzbromarone decreased serum uric acid levels from $8.3\pm2.3\;mg/dl\;to\;5.1\pm2.0\;mg/dl$ (p<0.0001) and normalizing serum uric acid in all of 22 patients. Except for one patient $(4.5\%)$ who experienced diarrhea, no significant side effect was noted.
Journal of the Korea Institute of Information and Communication Engineering
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v.12
no.6
/
pp.1010-1015
/
2008
The choice of RFID system is recently progressing(being) rapidly at various field. For the sake of RFID system popularization, However, We should solve privacy invasion to gain the pirated information of RFID tag. There is the safest M Ohkubos's skill among preexistent studying to solve these problems. But, this skill has a problem that demands a immense calculation capability caused an increase in tag number when we discriminate tags. So, This paper proposes the way of transplant to Grid environment for keeping Privacy Protection up and reducing the Tag Identification Time. And, We propose the Tag Identification Process Model to apply Even Division Algorithm to separate SP with same site in each node. If the proposed model works in Grid environment at once, it would reduce the time to identify tags to 1/k.
Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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2009.10a
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pp.861-865
/
2009
Technical development in car has utilized electronic controls (ECU, Electronic Control Unit) recently if was achieved machine such as engine performance in priority and electronic side technical development that improve safety, convenience, expense etc. is proceeded vigorously. Also, preference of consumers for car is various model's number according to change at the fast speed and complexity of software required from vanguard service development was increased greatly. Software development expense dominated considerable weight in car manufacture expense by such change and automakers established OSEK/VDX that is standard of automobile embeded system to reuse application software by module to respond this and transplant easily to other control device. Do when search about all item that is necessary in real-time OS structure that examines OSEK/VDX standard that is presented as the alternative to respond environment that change rapidly that refer in dignified mien after it is original, and uses actuality OSEK/VDX.
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