1.Discordance in Claudin 18.2Expression Between Primary and Metastatic Lesions in Patients With Gastric Cancer
Seung-Myoung SON ; Chang Gok WOO ; Ok-Jun LEE ; Sun Kyung LEE ; Minkwan CHO ; Yong-Pyo LEE ; Hongsik KIM ; Hee Kyung KIM ; Yaewon YANG ; Jihyun KWON ; Ki Hyeong LEE ; Dae Hoon KIM ; Hyo Yung YUN ; Hye Sook HAN
Journal of Gastric Cancer 2025;25(2):303-317
Purpose:
Claudin 18.2 (CLDN18.2) has emerged as a promising therapeutic target for CLDN18.2-expressing gastric cancer (GC). We sought to examine the heterogeneity of CLDN18.2 expression between primary GC (PGC) and metastatic GC (MGC) using various scoring methods.
Materials and Methods:
We retrospectively analyzed data from 102 patients with pathologically confirmed paired primary and metastatic gastric or gastroesophageal junction adenocarcinomas. CLDN18.2 expression was evaluated through immunohistochemistry on formalin-fixed paraffin-embedded tissue samples. We assessed CLDN18.2 positivity using multiple scoring approaches, including the immunoreactivity score, H-score, and the percentage of tumor cells showing moderate-to-strong staining intensity. We analyzed the concordance rates between PGC and MGC and the association of CLDN18.2 positivity with clinicopathological features.
Results:
CLDN18.2 positivity varied from 25% to 65% depending on the scoring method, with PGC consistently showing higher expression levels than MGC. Intratumoral heterogeneity was noted in 25.5% of PGCs and 19.6% of MGCs. Intertumoral heterogeneity, manifesting as discordance in CLDN18.2 positivity between PGC and MGC, was observed in about 20% of cases, with moderate agreement across scoring methods (κ=0.47 to 0.60).In PGC, higher CLDN18.2 positivity correlated with synchronous metastasis, presence of peritoneal metastasis, poorly differentiated grade, and biopsy specimens. In MGC, positivity was associated with synchronous metastasis, presence of peritoneal metastasis, and metastatic peritoneal tissues.
Conclusions
CLDN18.2 expression demonstrates significant heterogeneity between PGC and MGC, with a 20% discordance rate. Comprehensive tissue sampling and reassessment of CLDN18.2 status are crucial, especially before initiating CLDN18.2-targeted therapies.
2.Discordance in Claudin 18.2Expression Between Primary and Metastatic Lesions in Patients With Gastric Cancer
Seung-Myoung SON ; Chang Gok WOO ; Ok-Jun LEE ; Sun Kyung LEE ; Minkwan CHO ; Yong-Pyo LEE ; Hongsik KIM ; Hee Kyung KIM ; Yaewon YANG ; Jihyun KWON ; Ki Hyeong LEE ; Dae Hoon KIM ; Hyo Yung YUN ; Hye Sook HAN
Journal of Gastric Cancer 2025;25(2):303-317
Purpose:
Claudin 18.2 (CLDN18.2) has emerged as a promising therapeutic target for CLDN18.2-expressing gastric cancer (GC). We sought to examine the heterogeneity of CLDN18.2 expression between primary GC (PGC) and metastatic GC (MGC) using various scoring methods.
Materials and Methods:
We retrospectively analyzed data from 102 patients with pathologically confirmed paired primary and metastatic gastric or gastroesophageal junction adenocarcinomas. CLDN18.2 expression was evaluated through immunohistochemistry on formalin-fixed paraffin-embedded tissue samples. We assessed CLDN18.2 positivity using multiple scoring approaches, including the immunoreactivity score, H-score, and the percentage of tumor cells showing moderate-to-strong staining intensity. We analyzed the concordance rates between PGC and MGC and the association of CLDN18.2 positivity with clinicopathological features.
Results:
CLDN18.2 positivity varied from 25% to 65% depending on the scoring method, with PGC consistently showing higher expression levels than MGC. Intratumoral heterogeneity was noted in 25.5% of PGCs and 19.6% of MGCs. Intertumoral heterogeneity, manifesting as discordance in CLDN18.2 positivity between PGC and MGC, was observed in about 20% of cases, with moderate agreement across scoring methods (κ=0.47 to 0.60).In PGC, higher CLDN18.2 positivity correlated with synchronous metastasis, presence of peritoneal metastasis, poorly differentiated grade, and biopsy specimens. In MGC, positivity was associated with synchronous metastasis, presence of peritoneal metastasis, and metastatic peritoneal tissues.
Conclusions
CLDN18.2 expression demonstrates significant heterogeneity between PGC and MGC, with a 20% discordance rate. Comprehensive tissue sampling and reassessment of CLDN18.2 status are crucial, especially before initiating CLDN18.2-targeted therapies.
3.Discordance in Claudin 18.2Expression Between Primary and Metastatic Lesions in Patients With Gastric Cancer
Seung-Myoung SON ; Chang Gok WOO ; Ok-Jun LEE ; Sun Kyung LEE ; Minkwan CHO ; Yong-Pyo LEE ; Hongsik KIM ; Hee Kyung KIM ; Yaewon YANG ; Jihyun KWON ; Ki Hyeong LEE ; Dae Hoon KIM ; Hyo Yung YUN ; Hye Sook HAN
Journal of Gastric Cancer 2025;25(2):303-317
Purpose:
Claudin 18.2 (CLDN18.2) has emerged as a promising therapeutic target for CLDN18.2-expressing gastric cancer (GC). We sought to examine the heterogeneity of CLDN18.2 expression between primary GC (PGC) and metastatic GC (MGC) using various scoring methods.
Materials and Methods:
We retrospectively analyzed data from 102 patients with pathologically confirmed paired primary and metastatic gastric or gastroesophageal junction adenocarcinomas. CLDN18.2 expression was evaluated through immunohistochemistry on formalin-fixed paraffin-embedded tissue samples. We assessed CLDN18.2 positivity using multiple scoring approaches, including the immunoreactivity score, H-score, and the percentage of tumor cells showing moderate-to-strong staining intensity. We analyzed the concordance rates between PGC and MGC and the association of CLDN18.2 positivity with clinicopathological features.
Results:
CLDN18.2 positivity varied from 25% to 65% depending on the scoring method, with PGC consistently showing higher expression levels than MGC. Intratumoral heterogeneity was noted in 25.5% of PGCs and 19.6% of MGCs. Intertumoral heterogeneity, manifesting as discordance in CLDN18.2 positivity between PGC and MGC, was observed in about 20% of cases, with moderate agreement across scoring methods (κ=0.47 to 0.60).In PGC, higher CLDN18.2 positivity correlated with synchronous metastasis, presence of peritoneal metastasis, poorly differentiated grade, and biopsy specimens. In MGC, positivity was associated with synchronous metastasis, presence of peritoneal metastasis, and metastatic peritoneal tissues.
Conclusions
CLDN18.2 expression demonstrates significant heterogeneity between PGC and MGC, with a 20% discordance rate. Comprehensive tissue sampling and reassessment of CLDN18.2 status are crucial, especially before initiating CLDN18.2-targeted therapies.
4.Job Analysis of Maternal Fetal Intensive Care Unit Nurses Using DACUM Technique
Hee Jeong KIM ; Jeung Im KIM ; Sukhee AHN ; Myoung Hee KIM ; Yunmi KIM ; Kyung Sook CHO ; Namsuk HWANG ; Jung Sun CHOI ; Soo Hye PARK ; Eun Hee LEE
Journal of Korean Clinical Nursing Research 2018;24(1):10-22
PURPOSE: This study was performed to establish the role and to analyze the job of MFICU (Maternal Fetal Intensive Care Unit) nurses using DACUM (Developing a curriculum). METHODS: A DACUM workshop was held to define MFICU nurses' role and identify their duties and tasks. A DACUM committee was consisted of 7 nurses, 2 nursing professors and 1 medical doctor and as a result, a survey was developed which contained duties and tasks of MFICU nurse. Pre-test was carried out for the validity, finally collected the data from 97 nurses who worked at 7 MFICU and 10 delivery room. RESULTS: A total of 60 duties, 115 tasks and 822 elements of tasks were defined on the DACUM chart and survey. The importance, frequency and difficulty of the tasks were presented the determinant coefficient (DC), the highest DC duty was ‘Manage maternal ventilator’ (15.09) and the lowest DC was ‘Provide nursing care for leisure to gestation extension mother’ (6.52). Twenty-eight tasks were differentiated between MFICU and delivery nurses significantly. And the most important, frequently, difficulty task perceived by MFICU nurse was ‘Check fetal heartbeat with electronic fetal heart monitor’. CONCLUSION: The organized educational program and policy was needed to develop for MFICU nurses.
Critical Care
;
Delivery Rooms
;
Education
;
Fetal Heart
;
Intensive Care Units
;
Leisure Activities
;
Nursing
;
Nursing Care
;
Pregnancy
5.Palonosetron-Induced Anaphylaxis During General Anesthesia: A Case Report.
Hyungjun PARK ; Kyunghwan OH ; Hoonhee LEE ; Ji Hyang LEE ; Sun Myoung KANG ; So Young PARK ; Hyouk Soo KWON ; You Sook CHO ; Hee Bom MOON ; Tae Bum KIM
Allergy, Asthma & Immunology Research 2017;9(1):92-95
Palonosetron is a 5-hydroxytryptamine-3 (5-HT-3) receptor antagonist used for preventing postoperative nausea and vomiting. Compared with ondansetron and granisetron, it is a better drug because of prolonged action and minimal side effects. Some adverse effects of palonosetron have been reported. In this report, we describe a 37-year-old male who developed severe hypersensitivity reactions to palonosetron during surgery for kidney donation. His medical history was unremarkable, except for inguinal hernia with herniorrhaphy 8 years ago. The surgery was uneventful until 2 hours 20 minutes. After palonosetron injection, his blood pressure dropped to 80/50 mm Hg, and facial edema, rash, conjunctival swelling, and wheezing developed. The patient was resuscitated by administration of ephedrine, hydrocortisone, and peniramine. Following the surgery, the patient was monitored for 3 days, and there were no subsequent anaphylactic reactions or other complications. The skin test on postoperative day 54 was positive for hypersensitivity to palonosetron. Although palonosetron is known for its safety, other hypersensitivity events have been reported. Ondansetron is another widely used 5-HT-3 antagonist, which has been reported to cause anaphylaxis. Therefore, clinicians should be aware of the possibility of patients experiencing severe adverse reactions to palonosetron.
Adult
;
Anaphylaxis*
;
Anesthesia, General*
;
Blood Pressure
;
Drug Hypersensitivity
;
Edema
;
Ephedrine
;
Exanthema
;
Granisetron
;
Hernia, Inguinal
;
Herniorrhaphy
;
Humans
;
Hydrocortisone
;
Hypersensitivity
;
Kidney
;
Male
;
Ondansetron
;
Postoperative Nausea and Vomiting
;
Respiratory Sounds
;
Skin Tests
6.Recognition of Accreditation for Nursing Education, Job Satisfaction and Intention to Change Teaching Area for Faculty in Fundamentals of Nursing.
Hyoung Sook PARK ; Seung Kyo CHAUNG ; Young Ok YANG ; Jinhyang YANG ; Myoung Soo KIM ; Yong Soon SHIN ; Dong Hee KIM ; Hyun Ju KIM ; Jongsoon WON ; Bok Hee CHO ; Kyung Yeon PARK
Journal of Korean Academy of Fundamental Nursing 2017;24(2):157-166
PURPOSE: This study was done to explore recognition of accreditation for nursing education, job satisfaction and intention to change teaching area for faculty in Fundamentals of Nursing. METHODS: Participants were 104 faculty members teaching Fundamentals of Nursing. Each participant responded to a questionnaire. Data were collected from June 25 to October 25, 2016, and analyzed using SPSS 23.0 for descriptive statistics, t-test, ANOVA, and Pearson correlation coefficient. RESULTS: The participants' recognition of accreditation in nursing education was 3.45±0.81 out of 5 and in the sub-items, the score for quality improvement in professors in Fundamentals of Nursing was lowest at 3.21±1.03. Job satisfaction was 3.30±5.30, and intention to change teaching area was 2.62±1.00. Attributes related to practice appear to be major reasons why participants intended to change their teaching area and scores for intention to change teaching area were medium or higher. CONCLUSION: Results indicate that it is necessary to develop strategies to improve job satisfaction and reduce intention to change teaching area for faculty with less experience in Fundamentals of Nursing education. Development of strategies, management and support are needed to improve young professors' job satisfaction and reduce intention to change teaching area.
Accreditation*
;
Education
;
Education, Nursing*
;
Intention*
;
Job Satisfaction*
;
Nursing*
;
Quality Improvement
7.A Case of Multiple Hypervascular Hyperplastic Liver Nodules in a Patient with No History of Alcohol Abuse or Chronic Liver Diseases.
Byoung Joo DO ; In Young PARK ; So Yon RHEE ; Jin Kyung SONG ; Myoung Kuk JANG ; Seong Jin CHO ; Eun Sook NAM ; Eun Joo YUN
The Korean Journal of Gastroenterology 2015;65(5):321-325
Up-to-date imaging modalities such as three-dimensional dynamic contrast-enhanced CT (3D CT) and MRI may contribute to detection of hypervascular nodules in the liver. Nevertheless, distinguishing a malignancy such as hepatocellular carcinoma from benign hypervascular hyperplastic nodules (HHN) based on the radiological findings is sometimes difficult. Multiple incidental liver masses were detected via abdominal ultrasonography (US) in a 65-year-old male patient. He had no history of alcohol intake and no remarkable past medical history or relevant family history, and his physical examination results and laboratory findings were normal. 3D CT and MRI showed numerous enhanced nodules with hypervascularity during the arterial phase. After US guided liver biopsy, the pathological diagnosis was HHN. To date, several cases of HHN have been reported in patients with chronic alcoholic liver disease or cirrhosis. Herein, we report on a case of HHN in a patient with no history of alcoholic liver disease or cirrhosis.
Abdomen/diagnostic imaging
;
Aged
;
Alcoholism/pathology
;
Chronic Disease
;
Diagnosis, Differential
;
Focal Nodular Hyperplasia/*diagnosis
;
Humans
;
Imaging, Three-Dimensional
;
Liver/diagnostic imaging/*pathology
;
Liver Diseases/pathology
;
Magnetic Resonance Imaging
;
Male
;
Tomography, X-Ray Computed
;
Ultrasonography
8.Effects of the C3G/D3G anthocyanins-rich black soybean testa extracts on improvement of lipid profiles in STZ-induced diabetic rats.
So Young PARK ; Sujeong PAK ; Song Joo KANG ; Na Young KIM ; Da Saem KIM ; Min Jin KIM ; Seon Ah KIM ; Ji Young KIM ; So Yeon PARK ; So Hyun PARK ; Cho Rong YOUN ; Bo Ram LEE ; Hyo Eun LEE ; So Young CHOI ; Hee Won CHOI ; Jin Yeo HEO ; A Yeong HWANG ; Myoung Sook LEE
Journal of Nutrition and Health 2015;48(4):299-309
PURPOSE: The purpose of this study was to examine the effect of black soybean (CJ-3) testa extracts on lipid profiles in streptozotocin (STZ)-induced diabetic rats. METHODS: One control group and four STZ-induced diabetic groups with different doses of black soybean (CJ-3) testa extracts treatment [0 mg/kg (diabetic control, EX), 250 mg/kg (EX-250), 500 mg/kg (EX-500), 1,000 mg/kg (EX-1000)] were orally administered for 4 weeks. RESULTS: All CJ-3 treatment groups had remarkably lower serum triglyceride (TG) levels than that of EX group (p < 0.05) whereas hepatic TG contents did not show any differences. Results from serum total cholesterol (TC) concentrations of EX-250 and EX-1000 groups were decreased compared to EX group (p < 0.05). Furthermore, protein levels of 3-hydroxy-3-methyl-glutaryl-Coenzyme A (HMG-CoA) reductase from the liver decreased in all treatment groups (p < 0.05). However, significant differences were not observed in serum glucose and insulin, and glucose transporter 4 (GLUT-4) protein expression in skeletal muscle tissue. CONCLUSION: These results suggest that black soybean testa extracts could be useful for improvement of hyperlipidemia and hypercholesteremia in diabetes.
Animals
;
Anthocyanins
;
Blood Glucose
;
Cholesterol
;
Glucose Transport Proteins, Facilitative
;
Hypercholesterolemia
;
Hyperlipidemias
;
Insulin
;
Liver
;
Muscle, Skeletal
;
Oxidoreductases
;
Rats*
;
Soybeans*
;
Streptozocin
;
Triglycerides
9.Trends in Nursing Research in Korea: Research Trends for Studies Published from the Inaugural Issue to 2010 in the Journal of Korean Academy of Nursing and the Journals Published by Member Societies under Korean Academy of Nursing Science.
Myoung Ae CHOE ; Nam Cho KIM ; Kyung Mi KIM ; Sung Jae KIM ; Kyung Sook PARK ; Young Soon BYEON ; Sung Rae SHIN ; Soo YANG ; Kyung Sook LEE ; Eun Hyun LEE ; In Sook LEE ; Tae Wha LEE ; Myung Ok CHO ; Jin Hak KIM
Journal of Korean Academy of Nursing 2014;44(5):484-494
PURPOSE: The purpose of this study was to identify trends for studies published in the Journal of Korean Academy of Nursing and journals published by member societies from inaugural issues to 2010. METHODS: A total of 6890 studies were analyzed using descriptive statistics. RESULTS: Quantitative studies accounted for 83.6% while qualitative studies accounted for 14.4%. Most frequently used research designs were quasi-experimental (91.1%) for experimental research and survey (85.2%) for non-experimental research. Most frequent study participants were healthy people (35.8%), most frequent nursing interventions, nursing skills (53.5%), and 39.8% used knowledge, attitude and behavior outcomes for dependent variables. Most frequently used keyword was elderly. Survey studies decreased from 1991 to 2010 by approximately 50%, while qualitative studies increased by about 20%. True experimental research (1.2%) showed no significant changes. Studies focusing on healthy populations increased from 2001-2005 (37.5%) to 2006-2010 (41.0%). From 1970 to 2010, studies using questionnaire accounted for over 50% whereas physiological measurement, approximately 5% only. Experimental studies using nursing skill interventions increased from 1970-1980 (30.4%) to 2006-2010 (64.0%). No significant changes were noted in studies using knowledge, attitude and behavior (39.9% ) as dependent variables. CONCLUSION: The results suggest that further expansion of true experimental, qualitative studies and physiological measurements are needed.
Asian Continental Ancestry Group
;
Humans
;
Nursing Research/ethics/*trends
;
*Publishing
;
*Qualitative Research
;
Republic of Korea
;
Research Design
10.Autologous Immunoglobulin Therapy in Patients With Severe Recalcitrant Atopic Dermatitis: A Preliminary Report.
Dong Ho NAHM ; Su Mi CHO ; Myoung Eun KIM ; Yeo Jin KIM ; Sook Yeong JEON
Allergy, Asthma & Immunology Research 2014;6(1):89-94
The management of severe recalcitrant atopic dermatitis (AD) is a challenging issue for clinicians and patients. We hypothesized that repeated intramuscular injections of autologous immunoglobulin (autologous immunoglobulin therapy: AIGT) might induce clinical improvements in patients with AD by stimulation of the active immune response to antigen-binding-site of pathogenic antibodies. We tried AIGT in 3 adult patients with severe recalcitrant AD whose clinical conditions could not be effectively controlled by medical treatments (including oral cyclosporine) for more than 2 years. Autologous immunoglobulin was purified from the autologous plasma by affinity chromatography using Protein A. The patients were treated by an intramuscular injection of 50 mg of autologous immunoglobulin twice a week for 4 weeks. A clinical severity score of AD (SCORAD value) showed a decrease greater than 30% at 8 weeks after the initiation of AIGT compared with the baseline before the initiation of AIGT in all 3 patients with severe recalcitrant AD. No significant side effects from treatment were observed. Further studies with larger numbers of patients are required to evaluate the clinical usefulness of AIGT for AD.
Adult
;
Antibodies
;
Chromatography, Affinity
;
Dermatitis
;
Dermatitis, Atopic*
;
Humans
;
Immunity, Active
;
Immunization, Passive*
;
Immunoglobulins*
;
Injections, Intramuscular
;
Plasma
;
Staphylococcal Protein A

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