• 대한임상검사과학회지
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• 제43권2호
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• pp.57-67
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• 2011

In this study, we investigated the correlation between the administration of various antiviral agents and the alternation of specific biomarkers induced by the hepatitis B virus (HBV). Eligible subjects diagnosed with chronic hepatitis B were prescribed with antiviral drugs at the Gastroenterology Internal Medicine Department of E University Hospital in Daejeon between May 2004 and September 2009. Lamivudine was prescribed to 66 out of 100 patients. Of the 12 patients, 6 (50.0%) showed a change from being HBe-antigen-positive to being HBe-antigen-negative. Of the 39 patients, 23 (59.0%) showed higher than 40 IU/L alanine aminotransferase (ALT). Of the 65 patients, 41 (63.1%) showed HBV DNA decrease of 1 log, and were prescribed with Lamivudine. Adefovir was prescribed to 3 out of 100 patients. Of the 12 patients, 1 (8.3%) showed a change from being HBe-antigen-positive to being HBe-antigen-negative, and was prescribed with Adefovir. Entecavir was prescribed to 19 (19.0%) out of 100 patients. Of the 12 patients, 3 (25.0%) showed a change from being HBe-antigen-positive to being HBe-antigen-negative. Of the 12 patients, 3 (125.8%) showed higher than 40 IU/L ALT. Of the 65 patients, 14 (21.5%) showed HBV DNA decrease of 1 log, and were prescribed with Entecavir. Clavudine was prescribed to 7 out of 100 patients. Of the 12 patients, 1 (8.3%) showed a change from positive HBe antigen to negative HBe antigen. Of the 39 patients, 5 (12.8%) showed higher than 40 IU/L ALT. Of the 65 patients, 6 (9.2%) showed HBV decrease of 1 log, and were prescribed with Clavudine. These results do not show a statistically significant correlation between drugs and biomarkers. Data on combination therapy using Lamivudine and Adefovir show no statistically significant difference between drugs and biomarkers. Medications for periodic inspection was not correlated to HBe-antigen-negative conversion, ALT, and HBV DNA. HBV DNA was significantly reduced in patients with high levels of AST(aspartic acid aminotransferase) and ALT before treatment. In addition, the decrease of HBV DNA after 12 months of treatment was less frequently observed in patients treated with Lamivudine compared with other drugs. This result is associated with Lamivudine resistance. Although the association of drugs with diagnostic markers and the correct choice of treatment is difficult to determine, these results may be useful for further research on diagnosis and treatment of the hepatitis B virus.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8661-8666
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• 2014

Background: Docetaxel and cisplatin in combination with fluorouracil (DCF) regimen is accepted to be one of the standard regimens in the treatment of advanced gastric cancer. However, substantial toxicity has limited its use in daily clinical practice. Therefore, modification of DCF regimens, including introduction of capecitabine has been investigated to improve the safety profiles. In the present study, the efficacy and toxicity of a regimen with a modified dose of docetaxel and cisplatin in combination with oral capecitabine (DCX) was evaluated in untreated patients with HER2-negative advanced gastric cancer. Materials and Methods: Fifty-four patients with HER2-negative locally advanced or metastatic gastric cancer were included in this cohort. Patients received docetaxel $60mg/m^2$ plus cisplatin $60mg/m^2$ (day 1) combined with capecitabine $1650mg/m^2$ (days 1-14) every 3 weeks. Treatment response, survival, and toxicity were retrospectively analyzed. Results: The median age was 54 years (range: 24-76). The majority of patients (70%) had metastatic disease, while 11 patients (21%) had recurrent disease and underwent curative gastrectomy, and 5 patients (9%) had locally advanced disease (LAD). The median number of DCX cycles was 4. There were 28 partial responses and 11 complete responses, with an overall response rate of 72%. Curative surgery could be performed in four patients among five with LAD. At the median follow-up of 10 months, the median progression-free survival (PFS) and overall survival (OS) of the entire cohort of patients were 7.4 and 12.1 months, respectively. Dose modification was done in 12 patients due to toxicity in 8 and noncompliance in 4 patients. The most common hematological toxicity was neutropenia, which occurred at grade 3-4 intensity in 10 of 54 patients (27.7%). Febrile neutropenia was diagnosed only in two cases. Conclusions: DCX regimen offers prominent anti-tumor activity and considered to be effective first-line treatment with manageable toxicity for patients with HER2-negative advanced gastric cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제16권12호
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• pp.4863-4867
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• 2015

Background: Triple negative breast cancer (TNBC), characterized as estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 Her2 negative and accounting for 10-17% of all breast carcinomas, is only partially responsive to chemotherapy and suffers from a lack of clinically established targeted therapies. The aim of the current study was to evaluate the patterns of treatment and clinicopathology figures in Kurdish patients with triple-negative breast cancer, and to compare these to other reports. Materials and Methods: Between 2001 and 2014, 950 breast cancer patients were referred to our clinic. There were 74 female patients with TNBC, including 70 patients was invasive ductal carcinoma entered into our study. ER and PR positivity was defined as positive immunohistochemical staining in more than 10% of tumor cells. Immunohistochemistry assay with anti-HER2 antibodies was used to identify HER negative (0 and 1+) or positive (2+ and 3+). HER2 gene amplification was determined by fluorescent in situ hybridization (FISH). Overall survival (OS) was plotted with GraphPad Prism 5 Software using Kaplan-Meier and log-rank tests for comparison of results. Results: The mean age in the first diagnosis for 70 patients with triple TNBC and invasive ductal carcinoma was 49.6 years that range of age was 27-82 years. All of the patients were female. Of 70 patients, 23 patients had metastasis. Thirty-two patients (45.7%) were treated with tamoxifen and 39 (55.7%) with radiotherapy. Three-year, 5-year and 10-year OS rates for all patients were 82%, 72% and 64%, respectively. Conclusions: The OS in our West Iran TNBC patients is less than reported elsewhere. However, treatment with combination of tamoxifen plus radiation increases the OS and reduces the mortality rate.

• Journal of Gastric Cancer
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• 제17권4호
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• pp.306-318
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• 2017

Purpose: Guidelines in Western countries recommend retrieving ${\geq}15$ lymph nodes (LNs) during gastric cancer resection. This study sought to determine whether the number of examined lymph nodes (eLNs), a proxy for lymphadenectomy, effects survival in node-negative disease. Materials and Methods: The US National Cancer Database (2003-2011) was reviewed for node-negative gastric adenocarcinoma. Treatment was categorized by neoadjuvant therapy (NAT) vs. initial resection, and further stratified by eLN. Kaplan-Meier and Weibull models were used to analyze overall survival. Results: Of the 1,036 patients who received NAT, 40.5% had ${\leq}10eLN$, and most underwent proximal gastrectomy (67.8%). In multivariate analysis, greater eLN was associated with improved survival (eLN 16-20: HR, 0.71; P=0.039, eLN 21-30: HR, 0.55; P=0.001). Of the 2,795 patients who underwent initial surgery, 42.5% had ${\leq}10eLN$, and the majority underwent proximal gastrectomy (57.2%). In multivariate analysis, greater eLN was associated with improved survival (eLN 11-15: HR, 0.81; P=0.021, eLN 16-20: HR, 0.73; P=0.004, eLN 21-30: HR, 0.62; P<0.001, and eLN >30: HR, 0.58; P<0.001). Conclusions: In the United States, the majority of node-negative gastrectomies include suboptimal eLN. In node-negative gastric cancer, greater LN retrieval appears to have therapeutic and prognostic value, irrespective of initial treatment, suggesting a survival benefit to meticulous lymphadenectomy.

• 농촌의학ㆍ지역보건
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• 제6권1호
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• pp.73-81
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• 1981

This study was designed to analyze the result of Tb worker's activities on the performance of follow up program as part of the government tuberculosis program. The specific objectives of this study was also to improve the method of managing the patient who were registered at health center by the setting the priorities depend upon in their results of sputum examination and X-ray examination. All the medical records of 509 patients who were dropped out from government health center in Kyongnam area during 1978, were analyzed and interpreted. Followings are the result of the study. 1. The number of investigated cases were 509 (356% males and 153 females), by age the most prevalent group was 20~29 year old group as 27.3% and 20~40 year old group was 61.5%, above 61 year old was 14.9%. 2. The microscopic result of their sputum was positive in 52.1%, and by X-ray examination moderate advanced case was 63.9% minimal 18.5% and far advanced 17.6% in order. 3. Average duration of treatment was 9.03 months, 11.4 months in microscopic positive cases and 6.5 months in negative cases. 4. Conversion rate of microscopic positive case was 42.9% on sputum culture, in the negative cases, it was confirmed in negative 20.1% only by the initial sputum culture. 5. The rate who get take X-ray and sputum examination among any family member of the patients was 43.4% in positive cases, 20.9% in negative cases. 6. 80.2% of positive cases took X-ray for following up in every 6 month after registration, 41.0% in negative cases. 7. Defaulting reasons which recorded in individual card were undetermined reason (42.0%), treating elswhere (22. 4%), refused treatment (17.9%) and moved out (17.7%).

• Journal of applied mathematics & informatics
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• 제27권1_2호
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• pp.441-452
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• 2009

In this paper, a fifth order numerical method is presented for solving singularly perturbed differential-difference equations with negative shift. In recent papers the term negative shift has been using for delay. Similar boundary value problems are associated with expected first exit time problem of the membrane, potential in models for neuron and in variational problems in control theory. In the numerical treatment for such type of boundary value problems, first we use Taylor approximation to tackle terms containing small shifts which converts it to a boundary value problem for singularly perturbed differential equation. The two point boundary value problem is transformed into general first order ordinary differential equation system. A discrete approximation of a fifth order compact difference scheme is presented for the first order system and is solved using the boundary conditions. Several numerical examples are solved and compared with exact solution. It is observed that present method approximates the exact solution very well.

• 사상체질의학회지
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• 제4권1호
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• pp.187-192
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• 1992

Skin conductance level (SCL) is used to analyze the individual differences in pathological states. The points of measurement were on the back of the second metacarpals, according to the Zhang's biological whole body medical treatment method. SCL was measured in 38 healthy men and women and in 98 patients in lung, liver, stomach, kidney, and paralysis. The classification of the physical constitution was done to them with respect to Lee's physical constitution theory. The following tendencies were observed. 1. SCL in patients group is lower than that in healthy group. 2. In healthy group, SCL in micro-positive physical constitution is higher than those of micro-negative and macro-negative physical constitution. 3. In patients group, SCL in micro-positive physical constitution is lower than those of micro-negative and macro-negative physical constitution vice versa.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제28권2호
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• pp.17-29
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• 2022

Purpose: In terms of efficiency and safety, this study attempted to organize data on the operation methods and architectural planning of infectious diseases hospitals. Methods: The results obtained through on-site and interview surveys with hospital officials and medical staffs at four infectious diseases hospitals under construction were summarized based on those original business plans and facility guidelines. Results: First, the operational methods to secure safety and operational efficiency were summarized for each department which are major hospital functions of infectious disease hospitals. Second, as the architectural planning, the characteristics of space and circulation of each department are summarized. For safety of medical staff, negative pressure and non-negative pressure zone have to completely separated. In addition medical staff wears PPE and enters the negative pressure zone and returns in the order of admiral, shower, and gowning in the PPE undressing room after patient treatment. In case of operational efficiency, flexible operation is required in normal and crisis situations. For example, it is important for The Ward to gradually switch to negative pressure beds in times of crisis from normal situation and the outpatient department considers the composition of negative pressure and non-negative pressure outpatient spaces that can operate in parallel even in crisis situations. Implications: Infectious disease hospitals require flexible operation and appropriate facilities for normal and crisis situations.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제12권1호
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• pp.23-29
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• 2009

목 적: HBeAg 음성 만성 B형 간염 환자에서 라미부딘의 적절한 치료 기간에 대한 연구는 국내외에 보고된 바 없다. 저자 등은 라미부딘의 장기 치료 효과를 분석하여 HBeAg 음성 소아 만성 B형 간염의 적절한 치료 기간을 결정하는데 예비자료로 제공하고자 하였다. 방 법: 1999년 7월부터 2006년 8월까지 경북대학교병원 소아청소년과에 내원하여 만성 B형 간염으로 진단받은 83명 중 HBeAg 음성 만성 B형 간염으로 진단되어 라미부딘 치료를 시작하였던 환자 7명 중 2년 이상 경과한 6명을 대상으로 하였다. 대상 환자들은 모두 혈청 ALT치가 정상 상한치의 2배 이상으로 증가되어 있었다. 라미부딘을 3 mg/kg (최대 100 mg)으로 매일 1회, 최소 2년 이상 경구 투여하였다. HBV DNA의 소실과 혈청 ALT 수치의 정상화를 1차 목표로 하였고 라미부딘 종료 후 관해 유지를 최종 목표로 하였다. 라미부딘은 HBV DNA의 음전화 및 ALT치의 정상화 후 2년 이상 추가 투여하기로 하였다. 치료 시작 후 매 2~3 개월 마다 HBV DNA, 혈청 ALT, HBeAg과 anti-HBe 역가의 변화 추이를 조사하였다. 결 과: 라미부딘 치료 기간은 평균 32.3개월(26~40개월)이었고 평균 추적 관찰 기간은 59.5개월(26~110개월)이었다. 라미부딘 치료를 받은 모든 환자에서 3개월 이내에 HBV DNA가 0.5 pg/mL 미만으로 감소하였다. 2005년 이후에 치료를 시작한 환자는 3명이었는데 3명 모두에서 3~23개월에 0.007 pg/mL (=357 IU/mL) 미만으로 감소하였다. 혈청 ALT치 정상화에 걸린 기간은 6명의 환자에서 평균 3.5개월(2~7개월)이었다. 라미부딘으로 치료한 환자 중 5명은 HBV DNA PCR에서 357 IU/mL 미만으로 유지되고 있으나 한 명의 환자에서 18개월에 생화학적 돌파현상(breakthrough)이 관찰 되어 28개월째에 투여를 중단하였다. 라미부딘 치료가 종료된 4명에서 평균 23.8개월(4~75개월)동안 추적 관찰하였지만 재발의 소견은 보이지 않았다. 결 론: HBeAg 음성 만성 B형 간염 환자에서 라미부딘은 효과적으로 HBV 증식을 저지할 뿐 아니라 혈청 ALT치를 정상화시켰다. 치료 종료 후의 재발률을 낮추기 위해 HBeAg 음성 만성 B형 간염 환자에서 라미부딘의 적절 치료 기간은 HBV DNA 음전 및 혈청 ALT치 정상화 후 2년 추가가 필요할 것으로 추정할 수 있으나 더 많은 환자를 대상으로 한 연구가 필요하다.

• 전자공학회논문지 IE
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• 제44권3호
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• pp.6-11
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• 2007

본 연구는 플라즈마 처리한 고분자 복합재료 표면의 접촉각, X-선광전자분광법(XPS) 및 코로나 대전에 의한 표면 정전특성을 분석하여 발생된 화학적 변화와 정전적 특성 변화를 고찰하여 열화 메커니즘을 도출하였다. 플라즈마 처리된 시료의 접촉각 및 표면전위는 표면에 카르복실기 라디칼을 포함하는 다량의 측쇄화가 집중적으로 발생되어 처리시간에 따라 급격한 친수화가 진행되었다. 플라즈마 처리로 인한 화학적 변화에서 표면에 carboxyl 라디칼이 주로 형성되면서 급격히 표면 친수화로 변화하였다. 정전변화를 분석한 전위감쇠 결과에서 미처리 시료는 부극성 표면을 나타내었으나, 친수화 표면은 carboxyl 라디칼(-COO*)을 포함하는 정극성 라디칼로 인해 정극성 표면으로 변화하여 부극성 전하가 빠르게 감소하였다.