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Park JH, Kim TS, Jo HJ, Lee CM, Lee M, Kang CK, Choe PG, Park WB, Kim NJ. Reduction of blood culture contamination rates through simplified personal protective equipment in COVID-19 patient care setting. J Hosp Infect 2024; 147:219-220. [PMID: 38309667 DOI: 10.1016/j.jhin.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Affiliation(s)
- J H Park
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - T S Kim
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H J Jo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - C M Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M Lee
- Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea
| | - C K Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - P G Choe
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea.
| | - W B Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - N J Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea
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Ryu JS, Choi CM, Yang SC, Song SY, Jeon YJ, Jang TW, Kim DJ, Jang SH, Yang SH, Lee MK, Lee KH, Jo HJ, Jang SJ, Kim YT, Cho JH, Choi YD, Nam HS, Kim HJ, Suh YJ. Prognostic Effect of Age on Survival of Patients with Stage I Adenocarcinoma of the Lung. Tumori 2018; 98:99-104. [DOI: 10.1177/030089161209800114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aims and Background It is still unclear whether age is an independent prognostic factor in patients with stage I NSCLC. Methods Five hundred and sixty-nine patients with stage I adenocarinoma who underwent surgical resection as first treatment were included. The effect on overall survival of age, gender, smoking habits, Charlson comorbidity index score (CCIS), type of surgery, tumor size and lymphatic or blood vessel invasion was analyzed. Results When the patients were divided into four groups according to quartiles of age, distributions of gender, smoking habit, CCIS, histology, blood vessel invasion and adjuvant chemotherapy were significantly different among the four groups. Age, gender, smoking habit, CCIS, tumor size and lymphatic and blood vessel invasion were significantly associated with overall survival of the patients in Kaplan-Meier analysis (logrank, P <0.001, P <0.001, P = 0.029, P <0.001, P = 0.001, P = 0.001 and P = 0.007, respectively). Moreover, the highest quartile of age (over 68 years old) was a prominent determinant for a worse prognosis after adjustment for the confounding variables using a Cox proportional hazard model (adjusted hazard ratio = 2.735, 95% confidence interval = 1.623–4.608, P <0.001). Conclusions The findings suggest that age is an important determinant of overall survival in patients with stage I adenocarcinoma. Therefore, age should be considered in classifying the patients into groups of higher or lower risk for death as well as in designing clinical trials.
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Affiliation(s)
- Jeong-Seon Ryu
- Center for Lung Cancer and Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Inchon
| | - Chang-Min Choi
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul
| | - Seok-Chul Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul
| | - Sang-Yun Song
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hwasun Hospital, Hwasun-gun
| | - Young-June Jeon
- Department of Internal Medicine, School of Medicine, Keimyung University, Daegu
| | - Tae-Won Jang
- Department of Internal Medicine, College of Medicine, Kosin University, Busan
| | - Do-Jin Kim
- Division of Respiratory and Allergy Medicine, Soonchunhyang University Hospital, College of Medicine, Bucheon
| | - Seung Hun Jang
- Division of Pulmonary, Allergy & Critical Care Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang
| | - Sei-Hoon Yang
- Department of Internal Medicine, Wonkwang University Hospital, Iksan
| | - Min-Ki Lee
- Department of Internal Medicine, School of Medicine, Pusan National University, Busan
| | - Kwan-Ho Lee
- Department of Internal Medicine, School of Medicine, Yeungnam University, Daegu
| | - Hyang-Jeong Jo
- Department of Internal Medicine, Wonkwang University Hospital, Iksan
| | - Se-Jin Jang
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul
| | - Young-Tae Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul
| | - Jae-Hwa Cho
- Center for Lung Cancer and Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Inchon
| | - Yoo-Duk Choi
- Department of Pathology, Chonnam National University Hwasun Hospital, Hwasun-gun
| | - Hae-Seong Nam
- Center for Lung Cancer and Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Inchon
| | - Hyun-Jung Kim
- Center for Lung Cancer and Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Inchon
| | - Young Ju Suh
- Clinical Research Institute, School of Medicine, Inha University, Incheon, Korea
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Kang JW, Seo JH, Youn KW, Seo YI, Huh K, Choi GR, Min HK, Oh DJ, Jo HJ, Kim JN. Use of supplemental anti-HBc testing of donors showing non-discriminating reactive results in multiplex nucleic acid testing. Vox Sang 2017; 112:622-627. [PMID: 28891069 DOI: 10.1111/vox.12553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/19/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND OBJECTIVES The Korean Red Cross began nucleic acid amplification testing (NAT) for HIV and HCV in February 2005, and added HBV NAT beginning in June 2012. The current NAT system utilizes a multiplex assay for simultaneous detection of HBV DNA, HCV RNA and HIV-1 RNA. For samples that are reactive in the multiplex assay, we do specific tests for each virus. However, there have been cases of non-discriminated reactive (NDR) results which appear to be the result of non-specific reactions or cross-contamination, although some cases are considered to arise from the presence of low levels of HBV DNA due to occult hepatitis B infection. MATERIALS AND METHODS We examined the incidence of NDR results in previous donations of some NAT-reactive donors. Additionally, for those donors with NDR results, we performed an HBV core antibody (anti-HBc) assay. RESULTS From November 2015 to March 2016, there were 408 NAT-reactive donors. Of these, nineteen HBV NAT-reactive donors showed a history of NDR results in the past donations. Seven donors showed NDR results more than once. Of 771 NDR donors, 362 (47·0%) were anti-HBc reactive. CONCLUSION The NDR donors had a substantially higher rate of anti-HBc reactivity than other blood donors indicating that some with anti-HBc reactivity represent donors with occult HBV. Therefore, the incorporation of an anti-HBc testing for NDR donors could improve blood safety testing for the Korean Red Cross.
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Affiliation(s)
- J W Kang
- Blood Transfusion Research Institute, Korean Red Cross, Wonju, Korea
| | - J H Seo
- Blood Transfusion Research Institute, Korean Red Cross, Wonju, Korea
| | - K W Youn
- Blood Transfusion Research Institute, Korean Red Cross, Wonju, Korea
| | - Y I Seo
- Blood Transfusion Research Institute, Korean Red Cross, Wonju, Korea
| | - K Huh
- Blood Transfusion Research Institute, Korean Red Cross, Wonju, Korea
| | - G R Choi
- Blood Service Headquarter, Korean Red Cross, Wonju, Korea
| | - H K Min
- Blood Service Headquarter, Korean Red Cross, Wonju, Korea
| | - D J Oh
- Blood Service Headquarter, Korean Red Cross, Wonju, Korea
| | - H J Jo
- Division of Human Blood Safety Surveillance, Korea Center for Disease Control and Prevention, Osong, Korea
| | - J N Kim
- Division of Human Blood Safety Surveillance, Korea Center for Disease Control and Prevention, Osong, Korea
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Jo HJ, Shin DB, Koo BK, Ko ES, Yeo HJ, Cho WH. The impact of multidisciplinary nutritional team involvement on nutritional care and outcomes in a medical intensive care unit. Eur J Clin Nutr 2017; 71:1360-1362. [PMID: 29091605 DOI: 10.1038/ejcn.2017.108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 04/27/2017] [Accepted: 06/06/2017] [Indexed: 11/09/2022]
Abstract
The aim of this study was to evaluate nutritional care and outcomes in a medical intensive care unit (ICU) following multidisciplinary nutritional team (MNT) involvement. The authors retrospectively reviewed the data of all patients admitted to a medical ICU from April to October 2013 (pre-MNT period) and from April to October 2014 (post-MNT period). In total, 140 patients were included and allocated to the pre-MNT group (n=70) or the post-MNT group (n=70). The post-MNT group was more likely to use enteral nutrition (61.4 vs 37.1%, P=0.002). In terms of total calories and protein provided, the number of nutritional goal-achieved days during stays in ICU was significantly greater in the post-MNT group than in the pre-MNT group (63.7% vs 47.6%, P<0.05 and 44.3% vs 29.9%, respectively, P<0.05). The MNT activities resulted in significant improvements in terms of nutritional provision and adequacy in a medical ICU.
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Affiliation(s)
- H J Jo
- Department of Nutrition and Dietetics, Pusan National University Yangsan Hospital, Yangsan-si, Korea
| | - D B Shin
- Department of Nutrition and Dietetics, Pusan National University Yangsan Hospital, Yangsan-si, Korea
| | - B K Koo
- Department of Nutrition and Dietetics, Pusan National University Yangsan Hospital, Yangsan-si, Korea
| | - E S Ko
- Department of Nutrition and Dietetics, Pusan National University Yangsan Hospital, Yangsan-si, Korea
| | - H J Yeo
- Department of Internal Medicine, Division of Respiratory Medicine, Pusan National University Yangsan Hospital, Yangsan-si, Korea
| | - W H Cho
- Department of Internal Medicine, Division of Respiratory Medicine, Pusan National University Yangsan Hospital, Yangsan-si, Korea
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Park GN, Kim SH, Kang HS, Lee HR, Jo HJ, Jeoung HY, An DJ, Chang KS. Isolation frequency and epidemiological characterization of yeast-like fungi and co-infected bacteria isolated from clinical patient. ACTA ACUST UNITED AC 2016. [DOI: 10.5897/jyfr2015.0160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Jo HJ, Maenza C, Good DC, Huang X, Park J, Sainburg RL, Latash ML. Effects of unilateral stroke on multi-finger synergies and their feed-forward adjustments. Neuroscience 2016; 319:194-205. [PMID: 26828408 DOI: 10.1016/j.neuroscience.2016.01.054] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/21/2016] [Accepted: 01/24/2016] [Indexed: 11/17/2022]
Abstract
We explored the changes in multi-finger synergies in patients after a single cortical stroke with mild motor impairments. We hypothesized that both synergy indices and anticipatory synergy adjustments prior to the initiation of a self-paced quick action would be diminished in the patients compared to age-matched controls. The patients with history of cortical stroke, and age-matched controls (n=12 in each group) performed one-finger and multi-finger accurate force production tasks involving both steady-state and quick force pulse production. Finger interdependence (enslaving) and multi-finger synergies stabilizing total force were quantified. The stroke patients showed lower maximal finger forces, in particular in the contralesional hand, which also showed increased enslaving indices. Multi-finger synergies during steady-state force production were, however, unchanged after stroke. In contrast, a drop in the synergy index prior to the force pulse generation was significantly delayed in the stroke patients. Our results show that mild cortical stroke leads to no significant changes in multifinger synergies, but there is impairment in feed-forward adjustments of the synergies prior to a quick action, a drop in the maximal force production, and an increase in enslaving. We conclude that studies of synergies reveal two aspects of synergic control differentially affected by cortical stroke.
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Affiliation(s)
- H J Jo
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA
| | - C Maenza
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - D C Good
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - X Huang
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Radiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Neurosurgery, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - J Park
- Department of Physical Education, Seoul National University, Seoul, South Korea
| | - R L Sainburg
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - M L Latash
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA.
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Park JH, Lee YR, So HS, Lee KK, Lee SY, Moon SR, Jo HJ, Lee S, Jeong K, Kwon KB, Yang SH. The role of autophagy induced by pemetrexed in lung adenocarcinoma cells. Oncol Rep 2014; 31:2365-70. [PMID: 24626722 DOI: 10.3892/or.2014.3071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 01/10/2014] [Indexed: 11/06/2022] Open
Abstract
Autophagy is known as an important regulatory mediator for cell survival or death and its important role in cancer. Pemetrexed (PTX) has been used in chemotherapy for lung cancer. However, the underlying molecular mechanisms have not been fully clarified. To investigate the role of autophagy induced by PTX in A549 cells, we performed MTT assay, acridine orange staining, western blotting, Annexin V/PI by using the 3-MA autophagy inhibitor. PTX induced autophagy after 48 h treatment in A549 cells. Furthermore, PTX showed acidic vesicular organelles (AVOs) and expressed LC3-II in A549 cells. The induction of autophagy by PTX was inhibited by 3-MA which was confirmed by reduced AVOs. When the autophagy was inhibited, Annexin V was increased. In addition, PARP cleavage was increased as shown by western blotting. Taken together, PTX induced autophagy in A549 cells and these cellular events possibly cause the apoptotic and/or necrotic cell death of A549 cells.
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Affiliation(s)
- Ji-Hye Park
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Young-Rae Lee
- Department of Oral Biochemistry and Institute of Biomaterials Implant, School of Dentistry, Wonkwang University, Iksan 570-749, Republic of Korea
| | - Hong-Seob So
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Kang-Kyoo Lee
- Department of Radiation Oncology, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Sam-Youn Lee
- Department of Thoracic and Cardiovascular Surgery, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Sun-Rock Moon
- Department of Radiation Oncology, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Hyang-Jeong Jo
- Department of Pathology, Gunsan Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Seoul Lee
- Department of Pharmacology, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Kyuyong Jeong
- Department of Pharmacology, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Kang-Beom Kwon
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
| | - Sei-Hoon Yang
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan 570-749, Republic of Korea
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Oh GS, Kim HJ, Choi JH, Shen A, Choe SK, Karna A, Lee SH, Jo HJ, Yang SH, Kwak TH, Lee CH, Park R, So HS. Pharmacological activation of NQO1 increases NAD⁺ levels and attenuates cisplatin-mediated acute kidney injury in mice. Kidney Int 2013; 85:547-60. [PMID: 24025646 PMCID: PMC3944666 DOI: 10.1038/ki.2013.330] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 06/10/2013] [Accepted: 06/13/2013] [Indexed: 12/12/2022]
Abstract
Cisplatin is a widely used chemotherapeutic agent for the treatment of various tumors. In addition to its antitumor activity, cisplatin affects normal cells and may induce adverse effects, such as ototoxicity, nephrotoxicity, and neuropathy. Various mechanisms, such as DNA adduct formation, mitochondrial dysfunction, oxidative stress, and inflammatory responses, are critically involved in cisplatin-induced adverse effects. As NAD+ is a cofactor for various enzymes associated with cellular homeostasis, we studied the effects of increased NAD+ levels by means of NAD(P)H:quinone oxidoreductase 1 (NQO1) activation using a known pharmacological activator (β-lapachone) in wild-type and NQO1−/− mice on cisplatin-induced renal dysfunction in vivo. The intracellular NAD+/NADH ratio in renal tissues was significantly increased in wild-type mice co-treated with cisplatin and β-lapachone compared with the ratio in mice treated with cisplatin alone. Inflammatory cytokines and biochemical markers for renal damage were significantly attenuated by β-lapachone co-treatment compared with those in the cisplatin alone group. Notably, the protective effects of β-lapachone in wild-type mice were completely abrogated in NQO1−/− mice. Moreover, β-lapachone enhanced the tumoricidal action of cisplatin in a xenograft tumor model. Thus, intracellular regulation of NAD+ levels through NQO1 activation might be a promising therapeutic target for the protection of cisplatin-induced acute kidney injury.
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Affiliation(s)
- Gi-Su Oh
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Hyung-Jin Kim
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Jae-Hyuck Choi
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Aihua Shen
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Seong-Kyu Choe
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Anzani Karna
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Seung Hoon Lee
- Life Science Research Center, KT&G Life Sciences, Suwon, Republic of Korea
| | - Hyang-Jeong Jo
- Department of Pathology, Kunsan Medical Center of Wonkwang University Hospital, Kunsan, Republic of Korea
| | - Sei-Hoon Yang
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Tae Hwan Kwak
- Life Science Research Center, KT&G Life Sciences, Suwon, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Raekil Park
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Hong-Seob So
- Center for Metabolic Function Regulation, Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
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Choi CM, Yang SC, Jo HJ, Song SY, Jeon YJ, Jang TW, Kim DJ, Jang SH, Yang SH, Kim YD, Lee KH, Jang SJ, Kim YT, Kim DK, Chung DH, Kim L, Nam HS, Cho JH, Kim HJ, Ryu JS. Proteins involved in DNA damage response pathways and survival of stage I non-small-cell lung cancer patients. Ann Oncol 2012; 23:2088-2093. [PMID: 22317771 DOI: 10.1093/annonc/mdr606] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Biological complexity leads to significant variation in the survival of patients with stage I non-small-cell lung cancer (NSCLC). DNA damage response (DDR) pathways play a critical role in maintaining genomic stability and in the progression of NSCLC. Therefore, the development of a prognostic biomarker focusing on DDR pathways is an intriguing issue. PATIENTS AND METHODS Expression of several proteins (ATM, ATMpS1981, γH2AX, 53BP1, 53BP1pS25, Chk2, Chk2pT68, MDC1, MDC1pS964, BRCA1pS1423, and ERCC1) and overall survival were investigated in 889 pathological stage I NSCLC patients. RESULTS Low expression of BRCA1pS1423 or ERCC1 was significantly associated with worse survival in the whole cohort of patients. Analysis performed based on histology revealed that low expression of γH2AX, Chk2pT68, or ERCC1 was a poor prognostic factor in squamous cell carcinoma patients [adjusted hazard ratio (aHR), Cox P: 1.544, 0.012 for γH2AX; 1.624, 0.010 for Chk2pT68; 1.569, 0.011 for ERCC1]. The analysis of the interaction between two proteins showed that this effect was more pronounced in squamous cell carcinoma patients. However, these effects were not detected in adenocarcinoma patients. CONCLUSIONS The proteins involved in DDR pathways exhibited differential expression between squamous cell carcinoma and adenocarcinoma and were important determinants of survival in stage I squamous cell carcinoma patients.
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Affiliation(s)
- C M Choi
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul
| | - S C Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul
| | - H J Jo
- Department of Pathology, College of Medicine, Wonkwang University, Iksan
| | - S Y Song
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hwasun Hospital, Hwasun-gun
| | - Y J Jeon
- Department of Internal Medicine, School of Medicine, Keimyung University, Daegu
| | - T W Jang
- Department of Internal Medicine, College of Medicine, Kosin University, Busan
| | - D J Kim
- Division of Respiratory and Allergy Medicine, Soonchunhyang University Hospital, College of Medicine, Bucheon
| | - S H Jang
- Division of Pulmonary, Allergy & Critical Care Medicine, Hallym University Sacred Heart Hospital, College of Medicine, Hallym University, Anyang
| | - S H Yang
- Department of Internal Medicine, Wonkwang University Hospital, Iksan
| | - Y D Kim
- Department of Thoracic Surgery, School of Medicine, Pusan National University, Busan
| | - K H Lee
- Department of Internal Medicine, Yeungnam University School of Medicine, Daegu
| | - S J Jang
- Department of Pathology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul
| | - Y T Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University College of Medicine, Seoul
| | - D K Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, College of Medicine, University of Ulsan, Seoul
| | - D H Chung
- Department of Pathology, Seoul National University College of Medicine, Seoul
| | | | - H S Nam
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon, Korea
| | - J H Cho
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon, Korea
| | - H J Kim
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon, Korea
| | - J S Ryu
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon, Korea.
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Chae HS, Jang GE, Kim NH, Son HR, Lee JH, Kim SH, Park GN, Jo HJ, Kim JT, Chang KS. Classification of Cryptococcus neoformans and yeast-like fungus isolates from pigeon droppings by colony phenotyping and ITS genotyping and their seasonal variations in Korea. Avian Dis 2012; 56:58-64. [PMID: 22545529 DOI: 10.1637/9703-030711-reg.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cryptococcus neoformans (C neoformans) is a frequent cause of invasive fungal disease in immunocompromised human hosts. Ninety-eight samples of pigeon droppings were collected from the pigeon shelters in Seoul, and cultured on birdseed agar (BSA) and Sabouraud dextrose agar (SDA). One hundred yeast-like colonies were selected and identified via phenotype characteristics, such as colony morphology and biochemical characteristics. This was then followed with genotyping via sequencing of the internal transcribed spacer (ITS) region. The colonies were classified into four kinds of colony color types: brown type (BrT), beige type (BeT), pink type (PT), and white type (WT). Numbers of isolated BrT, BeT, PT, and WT colonies were 22 (22%), 30 (30%), 19 (19%), and 39 (39%), respectively. All BrT colonies were identified as C neoformans. BeT were identified as 19 isolates of Cryptococcus laurentii, 10 isolates of Malassezia furfur, and 1 isolate of Cryptococcus uniguttulatus. PT was divided into two colony color types: light-PT (l-PT) and deep-PT (d-PT). Eighteen of l-PT and one of d-PT were identified as Rhodotorula glutinis and Rhodotorula mucilaginosa, respectively. WT were identified as 34 isolates of Cryptococcus guilliermondii, 3 isolates of Cryptococcus zeylanoides, 1 isolate of Cryptococcus sake, and 1 isolate of Stephanoascus ciferrii. Most strains were classified identically with the use of either phenotype or genotyping techniques, but C uniguttulatus and C sake classified by phenotyping were Pseudozyma aphidis and Cryptococcus famata by genotyping. This rapid screening technique of pathogenic yeast-like fungi by only colony characteristics is also expected to be very useful for primary yeast screening. Additionally, we investigated the seasonal variations of C neoformans and other yeast-like fungi from 379 pigeon-dropping samples that were collected from February 2011 to March 2011. We isolated 685 yeast-like fungi from the samples. Almost all C neoformans and yeast-like fungi were isolated in the fall (298 strains, 43.5%) and spring (244 strains, 35.6%). A few yeast-like fungi were isolated in winter (98 strains, 14.3%) and summer (45 strains, 6%). These results would be used as an important indicator related to epidemiology and prevention of pathogenic yeast-like fungi infections transmitted through pigeon droppings.
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Affiliation(s)
- H S Chae
- Seoul Metropolitan Government Research Institute of Public Health & Environment, Yang-Jae dong, Seo-Cho Gu, Seoul 137-131, Republic of Korea
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Ryu JS, Choi CM, Yang SC, Song SY, Jeon YJ, Jang TW, Kim DJ, Jang SH, Yang SH, Lee MK, Lee KH, Jo HJ, Jang SJ, Kim YT, Cho JH, Choi YD, Nam HS, Kim HJ, Suh YJ. Prognostic effect of age on survival of patients with stage I adenocarcinoma of the lung. Tumori 2012. [PMID: 22495709 DOI: 10.1700/1053.11507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS AND BACKGROUND It is still unclear whether age is an independent prognostic factor in patients with stage I NSCLC. METHODS Five hundred and sixty-nine patients with stage I adenocarinoma who underwent surgical resection as first treatment were included. The effect on overall survival of age, gender, smoking habits, Charlson comorbidity index score (CCIS), type of surgery, tumor size and lymphatic or blood vessel invasion was analyzed. RESULTS When the patients were divided into four groups according to quartiles of age, distributions of gender, smoking habit, CCIS, histology, blood vessel invasion and adjuvant chemotherapy were significantly different among the four groups. Age, gender, smoking habit, CCIS, tumor size and lymphatic and blood vessel invasion were significantly associated with overall survival of the patients in Kaplan-Meier analysis (logrank, P <0.001, P <0.001, P = 0.029, P <0.001, P = 0.001, P = 0.001 and P = 0.007, respectively). Moreover, the highest quartile of age (over 68 years old) was a prominent determinant for a worse prognosis after adjustment for the confounding variables using a Cox proportional hazard model (adjusted hazard ratio = 2.735, 95% confidence interval = 1.623-4.608, P <0.001). CONCLUSIONS The findings suggest that age is an important determinant of overall survival in patients with stage I adenocarcinoma. Therefore, age should be considered in classifying the patients into groups of higher or lower risk for death as well as in designing clinical trials.
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Affiliation(s)
- Jeong-Seon Ryu
- Center for Lung Cancer and Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Inchon, Korea.
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12
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Abstract
UNLABELLED Peripheral inflammation produces pain hypersensitivity by sensitizing nociceptors. Potentiation of P2X3 receptor activity in nociceptors may play an important role in this peripheral sensitization. However, we do not fully understand how P2X3 activity is elevated in inflammation. Thus, we investigated whether P2X3 activity in trigeminal nociceptive neurons is regulated by the neurokinin-1 (NK-1) receptor that is activated by an inflammatory mediator, substance P. Single-cell RT-PCR and immunohistochemistry revealed that NK-1 in nociceptive neurons was mainly co-expressed with P2X3. Ca(2+) imaging and whole-cell patch-clamp recordings indicated that both substance P and Sar-substance P, a selective NK-1 agonist, significantly potentiated α,β-meATP-induced currents and [Ca(2+)](i) responses in nociceptive neurons. These potentiating effects were completely blocked by GR82334, a specific NK-1 antagonist. Our results demonstrate that substance P sensitizes P2X3 receptor through the activation of NK-1, thus warranting these receptors as possible targets for pain therapy in the orofacial region. ABBREVIATIONS α,β-methylene adenosine 5'-triphosphate (ATP), α,β-meATP; neurokinin-1, NK-1; single-cell reverse-transcription polymerase chain-reaction, single-cell RT-PCR; [Sar(9),Met(O(2))(11)]-substance P, Sar-substance P.
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Affiliation(s)
- C K Park
- National Research Laboratory for Pain, Dental Research Institute and Department of Physiology, School of Dentistry, Seoul National University, 28-2 Yeongeon-Dong Chongno-Ku, Seoul 110-749, Republic of Korea
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13
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Kim JH, Kim SH, Seo SW, Jo HJ, Lee DK, Kim ST, Na DL, Kim SI, Lee JM. Functional Connectivity-based Parcellation of Medial Frontal Cortex Using Resting State fMRI: SMA and pre-SMA. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71801-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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14
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Park JH, Kim EJ, Jang HY, Shim H, Lee KK, Jo HJ, Kim HJ, Yang SH, Jeong ET, Kim HR. Combination treatment with arsenic trioxide and sulindac enhances apoptotic cell death in lung cancer cells via activation of oxidative stress and mitogen-activated protein kinases. Oncol Rep 2008; 20:379-384. [PMID: 18636201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Arsenic trioxide (As2O3) has been introduced to the treatment of acute promyelocytic leukemia (APL), and has also been shown to induce apoptosis in a variety of solid tumor cell lines, including non-small cell lung cancer. However, the prohibitively high concentration required for the induction of apoptotic cell death in many solid tumor cells is unacceptable for clinical utilization due to the excessive toxicity associated with this dose. Sulindac is known to enhance the cellular responsiveness of tumors toward chemotherapeutic drugs. Herein, we demonstrated that combination treatment with As2O3 and sulindac resulted in a synergistic augmentation of cytotoxicity in H157 lung cancer cells, which was revealed by apoptotic induction as demonstrated by an increase in the sub-G0/G1 fraction. In addition, combination treatment with As2O3 and sulindac increased reactive oxygen species (ROS) and oxidative stress, as evidenced by the heme oxygenase-1 (HO-1) expression and mitogen-activated protein kinase (MAPK) phosphorylation. MAPK inhibitors blocked the induction of HO-1 by combination treatment. Inhibitors of p38 and JNK partially inhibited the augmented cell death whereas the ERK inhibitor showed poor inhibition. Combination treatment with As2O3 and sulindac induced oxidative DNA damage in a time-dependent fashion, which was evaluated by H2AX phosphorylation along with HO-1 induction.
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Affiliation(s)
- Jung-Hyun Park
- Department of Internal Medicine, Institute of Wonkwang Medical Science, Wonkwang University, School of Medicine, Jeonbuk 570-749, South Korea
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15
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Hwang KE, Jo HJ, Lee KK, Shim H, Song JS, Shin JH, Shin SN, Park SH, Hong KM, Park JH, Jeong JH, Kim HJ, Kim HR, Yang SH, Jeong ET. The Clinical and Histopathologic Features according to Loss of LKB1 Protein Expression on Primary Lung Cancer. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.5.362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Ki Eun Hwang
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Hyang-Jeong Jo
- Department of Pathology, College of Medicine, Wonkwang University, Iksan, Korea
| | - Kang Kyoo Lee
- Department of Therapeutic Radiology and Oncology, College of Medicine, Wonkwang University, Iksan, Korea
| | - Hyeok Shim
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Jung Sub Song
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Jeong Hyun Shin
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Seong Nam Shin
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Seong-Hoon Park
- Department of Radiology, College of Medicine, Wonkwang University, Iksan, Korea
| | | | - Jung-Hyun Park
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Jong-Hoon Jeong
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Hui Jung Kim
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Hak-Ryul Kim
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Sei-Hoon Yang
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
| | - Eun-Taik Jeong
- Department of Internal Medicine, College of Medicine, Wonkwang University, Iksan, Korea
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16
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Kim SY, Kim EJ, Jang HY, Hwang KE, Park JH, Kim HJ, Jo HJ, Yang SH, Jeong ET, Kim HR. The Effect of Inhibition of Heme Oxygenase-1 on Chemosensitivity of Cisplatin in Lung Cancer Cells. Tuberc Respir Dis (Seoul) 2007. [DOI: 10.4046/trd.2007.62.1.33] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- So-Young Kim
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Eun-Jung Kim
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Hye-Yeon Jang
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Ki-Eun Hwang
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Jung-Hyun Park
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Hwi-Jung Kim
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Hyang-Jeong Jo
- Department of Pathology Kunsan Medical Center of Wonkwang University Hospital, Kunsan, Korea
| | - Sei-Hoon Yang
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Eun-Taik Jeong
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
| | - Hak-Ryul Kim
- Department of Internal Medicine, College of Medicine Wonkwang University, Iksan, Korea
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Bae PH, Hwang YJ, Jo HJ, Kim HJ, Lee Y, Park YK, Kim JG, Jung J. Size removal on polyester fabrics by plasma source ion implantation device. Chemosphere 2006; 63:1041-7. [PMID: 16324734 DOI: 10.1016/j.chemosphere.2005.09.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2005] [Revised: 09/01/2005] [Accepted: 09/07/2005] [Indexed: 05/05/2023]
Abstract
Plasma treatment was evaluated as an alternative clean desizing technology in this work. As indicated by weight loss, O2 plasma treatment efficiently removed sizing agents such as polyvintyl alcohol (PVA), polyacrylic acid esters and their mixture (MIX) on polyethylene terephthalate (PET) fabrics. SEM pictures of the plasma treated samples directly proved the disappearance of the sizing agents. XPS analysis showed apparent changes in chemical composition and functional groups of the PET surface after O2 plasma treatment. Carbon content decreased due to the removal of sizing agents while oxygen content increased. O2 plasma treatment also increased hydrophilic functional groups of sizing agents, which is confirmed by C1s and O1s deconvolution analyses. After O2 plasma treatment, the PET fabric was subjected to conventional desizing process at different temperatures. Except for the PET fabric sized with PVA, plasma-treated fabrics showed more efficient desizing results when compared with untreated fabrics. Furthermore, the desizing effluent from the treated fabric gave lower TOC, COD and BOD values.
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Affiliation(s)
- P H Bae
- Division of Environmental Science & Ecological Engineering, Korea University, Anam-dong, Sungbuk-gu, Seoul 136-713, Republic of Korea
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Abstract
Mucoepidermoid carcinoma of the thymus is an extremely rare malignant mediastinal neoplasm, and to our knowledge, only 13 cases have been reported. We report a case of mucoepidermoid carcinoma of the thymus that was seen in a 53-yr-old man with right chest pain. Chest CT scan showed a huge, cystic mass having a focal solid portion with direct invasion of the adjacent anterior chest wall and pericardium in the anterior mediastinum. Mucoepidermoid carcinoma of the thymus should be included in the differential diagnosis for masses of the anterior mediastinum associated with extensive cystic changes, although the carcinoma is exceedingly rare.
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Affiliation(s)
- Gang-Deuk Kim
- Department of Diagnostic Radiology, Wonkwang University School of Medicine, Iksan, Korea
| | - Hye-Won Kim
- Department of Diagnostic Radiology, Wonkwang University School of Medicine, Iksan, Korea
| | - Jung-Taek Oh
- Department of General Surgery, Wonkwang University School of Medicine, Iksan, Korea
| | - Hyang-Jeong Jo
- Department of Pathology, Gunsan Medial Center, Gunsan, Korea
| | - Seon-Kwan Juhng
- Department of Diagnostic Radiology, Wonkwang University School of Medicine, Iksan, Korea
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19
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Seo HI, Kwak HS, Jo HJ, Jeon TY, Bae YT, Sim MS. Correlation of Ultrasonographic Findings and Pathologic Prognostic Predictions in Breast Cancer. Cancer Res Treat 2001; 33:296-301. [PMID: 26680799 DOI: 10.4143/crt.2001.33.4.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Increased technologic capabilities have allowed for the expanded use of ultrasound beyond simple differentiation of a lesion as solid versus cystic nature, allowing us to classify lesions into various categories based on a number of descriptive features. The purpose of this study was to investigate whether to predict the preoperative prognosis of breast cancer through the correlation between ultrasonographic images and the grade of malignancy. MATERIALS AND METHODS The patient population for this study consisted of 107 patients with infiltrative ductal carcinoma who were evaluated using ultrasound technology. Ultrasonographic findings were divided as follows: Type I, round or oval shape and regular border; Type II, partially round or oval shape and partially irregular border; and Type III, irregular shape and irregular border. RESULTS 1. The frequency of grade 1 (G1) was significantly higher in the Type I group than the othergroups. 2. In the 2.0 cm sized mass, the lymph node metastasis rate was significantly lower in the Type I group than the other groups. 3. In all the groups, Estrogen receptor (ER) positivity was insignificant regardless of tumor size and type. 4. In the 2.0 cm sized mass, c-erbB-2 positivity was significantly lower in the Type I than the other groups. There was no clear difference among the three groups in tumors greater than 2.0 cm in size. CONCLUSION These results show that our classification of ultrasonographic images reflect the grade of malignancy in terms of clinicopathological features in breast cancers less than 2.0 cm in size. Therefore, ultrasonographic findings may help predict the preoperative prognosis in T1 size breast cancer, although further study is required.
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20
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Jo HJ, Ku JH, Jang DP, Shin MB, Ahn HB, Lee JM, Cho BH, Kim SI. The development of the virtual reality system for the treatment of the fears of public speaking. Stud Health Technol Inform 2001; 81:209-11. [PMID: 11317741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The fear of public speaking is a kind of social phobias. The patients having the fear of public speaking show some symptoms like shame and timidity in the daily personal relationship. They are afraid that the other person would be puzzled, feel insulted, and they also fear that they should be underestimated for their mistakes. For the treatment of the fear of public speaking, the cognitive-behavioral therapy has been generally used. The cognitive-behavioral therapy is the method that makes the patients gradually experience some situations inducing the fears and overcome those at last. Recently, the virtual reality technology has been introduced as an alternative method for providing phobic situations. In this study, we developed the public speaking simulator and the virtual environments for the treatment of the fear of public speaking. The head-mounted display, the head-tracker and the 3 dimensional sound system were used for the immersive virtual environment. The imagery of the virtual environment consists of a seminar room and 8 virtual audiences. The patient will speak in front of these virtual audiences and the therapist can control motions, facial expressions, sounds, and voices of each virtual audience.
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Affiliation(s)
- H J Jo
- Department of Biomedical Engineering, College of Medicine, Hanyang University, Seoul, Korea
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21
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Abstract
Actinomycosis is a chronic suppurative and granulomatous disease characterized histologically by sulfur granules with extensive necrosis, fibrosis and sinus formation. Depending on the site of primary infection, actinomycosis is generally classified as cervicofacial, thoracic and abdominal type. The liver is known to be the primary site of infection in 15% with abdominal actinomycosis. The authors have experienced a case of liver abscess in a 24-year-old male. The sono-guided aspiration biopsy revealed findings of infiltration of neutrophils and characteristics sulfur granules by light microscopy. This case was thought to represent an instance of liver actinomycosis. Although there have been a lot of reports on actinomycosis of the liver in other countries, only 3 cases were reported in Korea.
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Affiliation(s)
- J D Lee
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea
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