• Title/Summary/Keyword: Cost-efficacy

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Adipose-Derived Stem Cells Improve Efficacy of Melanocyte Transplantation in Animal Skin

  • Lim, Won-Suk;Kim, Chang-Hyun;Kim, Ji-Young;Do, Byung-Rok;Kim, Eo Jin;Lee, Ai-Young
    • Biomolecules & Therapeutics
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    • v.22 no.4
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    • pp.328-333
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    • 2014
  • Vitiligo is a pigmentary disorder induced by a loss of melanocytes. In addition to replacement of pure melanocytes, cocultures of melanocytes with keratinocytes have been used to improve the repigmentation outcome in vitiligo treatment. We previously identified by in vitro studies, that adipose-derived stem cells (ADSCs) could be a potential substitute for keratinocytes in cocultures with melanocytes. In this study, the efficacy of pigmentation including durability of grafted melanocytes and short-term safety was examined in the nude mouse and Sprague-Dawley rat after grafting of primary cultured human melanocytes, with or without different ratios of primary cultured human ADSCs. Simultaneous grafting of melanocytes and ADSCs, which were separately cultured and mixed on grafting at the ratios of 1:1, 1:2, or 1:3, showed better efficacy than that of pure melanocytes. Grafting of melanocytes cocultured with ADSCs resulted in a similar outcome as the grafting of cell mixtures. Skin pigmentation by melanocytes : ADSCs at the ratios of 1:1 and 1:2 was better than at 1:3. No significant difference was observed between the 1-week and 2-week durations in coculturing. Time-course microscopic examination showed that the grafted melanocytes remained a little longer than 6-week post-grafting. No inflammatory cell infiltration was observed in the grafted skin and no melanocytes were detectable in other organs. Collectively, grafting of melanocytes and ADSCs was equally safe and more effective than grafting of melanocytes alone. Despite the absence of significant differences in efficacy between the group of 1:1 and that of 1:2 ratio, 1:2 ratio for 1-week coculturing may be better for clinical use from the cost-benefit viewpoint.

A Study of Discharge Characteristics in Xe-Ne Gas Mixture for ac PDP with Long Gap Hump Electrode (Long Gap Hump 전극구조를 가진 ac PDP에서의 Xe-Ne 가스의 방전 특성 연구)

  • Heo, Jong-Cheol;Ok, Jung-Woo;Lee, Don-Kyu;Lee, Hae-June;Lee, Ho-Jun;Park, Chung-Hoo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.1
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    • pp.155-159
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    • 2009
  • To increase the luminance and luminous efficacy in the discharge for alternating current plasma display panel (ac PDP), the increment of Xe contents and long discharge gap are necessary. However, the driving voltage and the cost of driving circuit increases in the high Xe contents and long discharge path condition. In this paper, a long gap ITO hump electrode (LGH) model for discharge cells of ac PDP is evaluated in the various Xe contents($5{\sim}20%$). The discharge voltage of LGH structure is lower about 30V than that of ITa reference structure with same main discharge gap. The LGH structure has lower power consumption and higher luminance than those of reference structure, respectively. Also, the luminous efficacy of LGH structure is higher about 20% than that of ITO reference structure in the 20% Xe contents.

Cervical Cancer : Is Vaccination Necessary in India?

  • Farhath, Seema;Vijaya, P.P.;Mumtaj, P.
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.4
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    • pp.2681-2684
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    • 2013
  • In India, cervical cancer is the most common woman-related cancer, followed by breast cancer. The rate of cervical cancer in India is fourth worldwide. Two vaccines, Gardasil and Cervarix, both targeting HPV-16 and 18 which account for 70% of invasive cervical carcinomas, are licensed in the United States and numerous countries worldwide. Both vaccine formulations have shown excellent efficacy with minimal toxicity in active female population but numerous questions arise in vaccinating like cost effectiveness, lack of proven efficacy against other HPV strains, social acceptance of HPV vaccination and other ethical issues. The main objective of this study is to emphasis the advantages and disadvantages of the vaccination in India.

Personal Information Protection Behavior for Information Quality : Health Psychology Theory Perspectives (정보품질을 위한 개인정보 보호행위: 건강심리이론 관점을 중심으로)

  • Jee, Bum-Suk;Fan, Liu;Lee, Sang-Chul;Suh, Yung-Ho
    • Journal of Korean Society for Quality Management
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    • v.39 no.3
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    • pp.432-443
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    • 2011
  • The purpose of this research is to understand users' information protection behavior on personal information security from health psychology theory perspectives. Empirical results indicate that users' information protection behavior on personal information is predicted by perceived threat and perceived responsiveness. Perceived threat is determined by perceived susceptibility and perceived severity. Perceived responsiveness is determined by response efficacy and self-efficacy, but response cost is not significant. These findings provide an enriched understanding about users' information protection behavior on personal information security.

Once daily dosing of aminoglycoside in children (소아에서 aminoglycoside의 1일 1회 요법)

  • Shin, Seon Hee
    • Clinical and Experimental Pediatrics
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    • v.51 no.10
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    • pp.1038-1041
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    • 2008
  • Aminoglycosides are frequently used antibiotics in children. The multiple daily dosing (MDD) in infants and children is twice or three times daily depending on age. Recent studies in adults have shown that once daily dosing (ODD) maximizes the bactericidal activity and might minimize the toxicity of antibiotics. So, I reviewed many studies about efficacy, toxicity and cost effectiveness of ODD of aminoglycosides in children. Most studies suggest that ODD compared with MDD of aminoglycosides is theoretically more efficacious and has no higher toxicity in infants and children. But, the total number of patients included in the studies is not large. Multi-center, controlled prospective studies are required in larger numbers of infants and children to determine the efficacy and safety of the ODD regimen in children before ODD of aminoglycosides can be recommended for routine use.

Effect of Various ${\prod}$Type Metal Electrode in the AC PDP (AC PDP에서 다양한 형태의 ${\prod}$형 금속방전유지 전극의 효과)

  • Yoo, Su-Bok
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.3
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    • pp.586-590
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    • 2009
  • Recently, an AC Plasma Display Panels(PDP) with the metal sustain electrodes have been reported in order to reduce the manufacturing cost of the AC PDP. However, the luminance and efficacy of the AC PDP with metal electrodes are worse than those of the AC PDP with ITO electrodes. In this paper, various ${\prod}$type metal electrodes are suggested, in order to improve the electro-optical characteristics of the AC PDP with metal electrodes. Among the suggested electrode types, luminance of Hump electrode structure is higher by $40\;cd/m^2$ and discharge current of Asymmetry electrode structure is lower by 5% than those of Pi electrode structure, respectively. Moreover, $T_1$ of Hump electrode structure is reduced to 10% as compared with Pi electrode structure in address period for ADS driving scheme. In all aspects, the characteristics of Hump and Asymmetry electrode structure show best performance.

Efficacy and Safety of Venlafaxine Extended-release in Panic Disorder (공황 장애 환자에서 Venlafaxine Extended-release의 치료 효과와 안전성)

  • Ryu, Vin;Kim, Chan-Hyung
    • Anxiety and mood
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    • v.2 no.1
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    • pp.17-21
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    • 2006
  • SSRIs have been considered as the first line of treatment for patients with panic disorder since 1990s along with cognitive behavioral treatments. High potency benzodiazepines (e.g. alprazolam, clonazepam) have had advantages in anti-panic effects. However, these drugs have limitations of treating panic disorder because of their dependency, tolerance and withdrawal. Serotonin and noradrenaline reuptake inhibitors (SNRIs) such as venlafaxine were introduced as antidepressants since 1990s. Recently, it is confirmed that SNRIs have the remarkable anti-panic effects although some concerns about its cost, tolerance, withdrawal, side effects such as dry mouth, constipation, and hypertension have emerged. In this regard, further study is required to confirm the efficacy of long term treatment of panic disorder. Despite these concerns, venla-faxine extended-release is an effective treatment in patients with panic disorder.

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A Study on Recognition Level of the People on Oriental Medical Services and the Need for its Improvement (한방의료서비스에 대한 인식도 및 개선요구도)

  • Yoo Wang-Keun
    • Journal of Society of Preventive Korean Medicine
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    • v.7 no.2
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    • pp.45-64
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    • 2003
  • This study was conducted to examine the recognition level of the people on oriental medical Services and the need for it's improvement. Data were collected from 1174 residents in Daegu metropolitan city and Gyungbuk province. According to the satisfaction level with each items of oriental medical services, the respondents had positive views on efficacy, kindness, and side-effects. They, however, had negative view on the cost of oriental medical services. In regarding to the priority of improvement of oriental medical system, 'expansion of insurance benefit package' ranked first. Followed by 'safety of herbal medicine(heavy metal/pesticides)', 'improvement of scientific methods and diagnostic technique' etc. For the further development of oriental medical services in the consumer - focused and evidenced-based health care environment, much attention to implement relevant health policy reflecting user's need positively should be made.

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Radioimmunotherapy (I): Development of Radioimmunoconjugates (방사면역치료(I): 방사면역접합체 개발)

  • Choi, Tae-Hyun;Lim, Sang-Moo
    • Nuclear Medicine and Molecular Imaging
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    • v.40 no.2
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    • pp.66-73
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    • 2006
  • Monoclonal antibodies are designed to bind specifically to certain antigen, give therapeutic effect to the target and to be produced in large scale with homogeneity. The monoclonal antibodies conjugated with radionuclide can deliver therapeutic irradiation to the target, and showed successful results in certain malignancies, which is known as radioimmunotherapy. The target-to-background ratio depends on the antigen expression in the target and normal tissues, which is related to the therapeutic efficacy and toxicity in radioimmunotherapy. For the solid tumor beta-ray energy should be high, but lower beta energy is better for the hematological malignancies. I-l31 is widely used in thyroid cancer with low cost and high availability. Labeling monoclonal antibody with I-131 is relatively simple and reproducible. Some preclinical data for the I-131 labeled monoclonal antibodies including acute toxicity and efficacy are available from already published literatures in KIRAMS, physician sponsored clinical trial protocols using Rituximab, KFDA approved anti-CD20 chimeric monoclonal antibody and I-131 were approved by KFDA and currently are ongoing.

Cost-Effectiveness Analysis of Granisetron-Based versus Standard Antiemetic Regimens in Low-Emetogenic Chemotherapy: A Hospital-based Perspective from Malaysia

  • Keat, Chan Huan;Ghani, Norazila Abdul
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7701-7706
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    • 2013
  • Background: In a prospective cohort study of antiemetic therapy conducted in Malaysia, a total of 94 patients received low emetogenic chemotherapy (LEC) with or without granisetron injections as the primary prophylaxis for chemotherapy-induced nausea and vomiting (CINV). This study is a retrospective cost analysis of two antiemetic regimens from the payer perspective. Materials and Methods: This cost evaluation refers to 2011, the year in which the observation was conducted. Direct costs incurred by hospitals including the drug acquisition, materials and time spent for clinical activities from prescribing to dispensing of home medications were evaluated (MYR 1=$0.32 USD). As reported to be significantly different between two regimens (96.1% vs 81.0%; p=0.017), the complete response rate of acute emesis which was defined as a patient successfully treated without any emesis episode within 24 hours after LEC was used as the main indicator for effectiveness. Results: Antiemetic drug acquisition cost per patient was 40.7 times higher for the granisetron-based regimen than for the standard regimen (MYR 64.3 vs 1.58). When both the costs for materials and clinical activities were included, the total cost per patient was 8.68 times higher for the granisetron-based regimen (MYR 73.5 vs 8.47). Considering the complete response rates, the mean cost per successfully treated patient in granisetron group was 7.31 times higher (MYR 76.5 vs 10.5). The incremental cost-effectiveness ratio (ICER) with granisetron-based regimen, relative to the standard regimen, was MYR 430.7. It was found to be most sensitive to the change of antiemetic effects of granisetron-based regimen. Conclusions: While providing a better efficacy in acute emesis control, the low incidence of acute emesis and high ICER makes use of granisetron as primary prophylaxis in LEC controversial.