1.Terpenoids from Citrus unshiu Peels and Their Effects on NO Production
Thi Oanh VU ; Wonyoung SEO ; Jeong Hyung LEE ; Byung Sun MIN ; Jeong Ah KIM
Natural Product Sciences 2020;26(2):176-181
Two new compounds, 3-methyl-but-2-en-1-yl-1-O-β-xylopyranosyl-(1ʺ→2ʹ)-O-β-glucopyranoside (1) and 1-O-β-glucopyranosyl-6-hydroxy-2-methyl-hep-2-enoic acid (2), along with sixteen known terpenoids were isolated from the peels ofCitrus unshiu Markov. Their structures were elucidated based on extensive NMR analyses ( 1 H NMR, 13 C NMR, DEPT, COSY, HMQC, and HMBC) and high-resolution mass spectrometry. In addition, all isolates (1 - 18) were tested their effects on nitric oxide (NO) production in RAW264.7 cells. Limonin (15) showed to inhibit LPS-induced NO production in a concentration-dependent manner without cytotoxicity.
2.Chemical Pleurodesis as a Treatment for Hydrothorax Complicating Peritoneal Dialysis.
Su Ah SUNG ; Gang Jee KO ; Myung Kyu KIM ; Jeong Yup KIM ; Sang Kyung JO ; Won Young CHO ; Hyoung Kyu KIM
Korean Journal of Nephrology 2005;24(1):162-166
Hydrothorax complicating continuous ambulatory peritoneal dialysis (CAPD) occurs approximately 2% of continuous ambulatory peritoneal dialysis. Management might begin with interruption of peritoneal dialysis for 2-6 weeks. But, approximately half of the patients failed to respond to the conservative approach, as thus some authors advocated the combined use of intrapleural sclerosing agents and discontinuation of CAPD. As a rule of thumb, a 10-day wait is recommended after pleurodesis before resuming CAPD. As opposed to closed pleurodesis, the diaphragmatic defects can be identified and repaired under direct vision with surgical approach. But, limited eligibility of dialysis patients for open thoracostomy or video-assisted thoracostomy has been a major impediment for this definitive treatment of choice. From 1999 to 2003, among patients undergoing CAPD in Korea University Hospital, hydrothorax developed in four patients. Discontinuation of CAPD and conventional pleurodesis were performed. Three patients were treated successfully. A patient who interrupted peritoneal dialysis only for four days recurred after resuming CAPD. In conclusion, when pleural effusion complicates in a CAPD patient, chemical pleurodesis and cessation of CAPD during at least 10 days might be an initial tratement of choice.
Dialysis
;
Humans
;
Hydrothorax*
;
Korea
;
Peritoneal Dialysis*
;
Peritoneal Dialysis, Continuous Ambulatory
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Pleural Effusion
;
Pleurodesis*
;
Sclerosing Solutions
;
Thoracostomy
;
Thumb
3.Two Cases of Neuroendocrine Carcinoma and GIST in a Patient with Neurofibromatosis Type 1.
Wonyoung CHOI ; Seung Dok HONG ; Ha Na KIM ; Yoo Duk CHOI ; Jun Eul HWANG ; Hyun Jeong SHIM ; Woo Kyun BAE
Korean Journal of Medicine 2011;81(6):786-791
Patients with neurofibromatosis type 1 (NF1) are at increased risk of developing tumors throughout the gastrointestinal tract, including neuromas, gastrointestinal stromal tumors (GISTs), and periampullary somatostatin-rich carcinoids. The simultaneous occurrence of a GIST and a well-differentiated neuroendocrine carcinoma in a patient with NF1 is very rare. Here, we report two cases of the coexistence of a low-risk GIST in the jejunum with a well-differentiated neuroendocrine carcinoma in the duodenum in patients with NF1. These cases strengthen the known association of GIST with neuroendocrine carcinoma in patients with NF1.
Carcinoid Tumor
;
Carcinoma, Neuroendocrine
;
Duodenum
;
Gastrointestinal Stromal Tumors
;
Gastrointestinal Tract
;
Humans
;
Jejunum
;
Neurofibromatoses
;
Neurofibromatosis 1
;
Neuroma
4.Two Cases of Neuroendocrine Carcinoma and GIST in a Patient with Neurofibromatosis Type 1.
Wonyoung CHOI ; Seung Dok HONG ; Ha Na KIM ; Yoo Duk CHOI ; Jun Eul HWANG ; Hyun Jeong SHIM ; Woo Kyun BAE
Korean Journal of Medicine 2011;81(6):786-791
Patients with neurofibromatosis type 1 (NF1) are at increased risk of developing tumors throughout the gastrointestinal tract, including neuromas, gastrointestinal stromal tumors (GISTs), and periampullary somatostatin-rich carcinoids. The simultaneous occurrence of a GIST and a well-differentiated neuroendocrine carcinoma in a patient with NF1 is very rare. Here, we report two cases of the coexistence of a low-risk GIST in the jejunum with a well-differentiated neuroendocrine carcinoma in the duodenum in patients with NF1. These cases strengthen the known association of GIST with neuroendocrine carcinoma in patients with NF1.
Carcinoid Tumor
;
Carcinoma, Neuroendocrine
;
Duodenum
;
Gastrointestinal Stromal Tumors
;
Gastrointestinal Tract
;
Humans
;
Jejunum
;
Neurofibromatoses
;
Neurofibromatosis 1
;
Neuroma
5.A Web-Based Decision Aid for Informed Prostate Cancer Screening:Development and Pilot Evaluation
Wonyoung JUNG ; In Young CHO ; Keun Hye JEON ; Yohwan YEO ; Jae Kwan JUN ; Mina SUH ; Ansuk JEONG ; Jungkwon LEE ; Dong Wook SHIN
Journal of Korean Medical Science 2023;38(46):e360-
Background:
Prostate-specific antigen-based routine screening is not recommended for the general population due to conflicting results with mortality reduction. We aimed to develop a web-based decision aid (DA) for informed decision making for prostate cancer screening.
Methods:
Using the International Patient Decision Aid Standards (IPDAS) development process model, we developed our DA based on patient and clinician interviews and multidisciplinary expert discussions. The prototype consisted of predicting individual prostate cancer risk and informed decision-making, including knowledge, risk and benefit, cost, personal value, and decision making. We conducted a pilot study on 101 healthy men, evaluating the effectiveness of DA by measuring knowledge, attitude, and intention to screen before and after using the DA, as well as decisional conflict and usefulness after using the DA.
Results:
Of the 101 participants (median age 60 [50–69] years), 84% had not undergone screening for prostate cancer in the past two years. After using the DA, knowledge on prostate cancer screening increased (mean score [of 10] before versus after: 6.85 ± 1.03 versus 7.57 ± 1.25; P < 0.001), and intention to not screen increased from 27.7% to 51.5% (P < 0.001), but attitude toward screening did not change (P = 0.564). After use of the DA, 79 participants reported no decisional conflict, and the usefulness score was high (mean score [of 100] 77.35 ± 7.69), with 85% of participants reporting that the DA helped with decision making.
Conclusion
Our web-based DA yielded increased knowledge, decreased screening intention, and high perceived usefulness. These findings indicate potential clinical relevance, especially among younger individuals.
6.The Risk of Hypertension and Diabetes Mellitus According to Offspring’s Birthweight in Women With Normal Body Mass Index: A Nationwide Population-Based Study
Young Mi JUNG ; Wonyoung WI ; Kyu-Dong CHO ; Su Jung HONG ; Ho Yeon KIM ; Ki Hoon AHN ; Soon-Cheol HONG ; Hai-Joong KIM ; Min-Jeong OH ; Geum Joon CHO
Journal of Korean Medical Science 2024;39(5):e50-
Background:
Maladaptation to vascular, metabolic, and physiological changes during pregnancy can lead to fetal growth disorders. Moreover, adverse outcomes during pregnancy can further increase the risk of cardiovascular and metabolic diseases in mothers. Delivering a large-for-gestational-age (LGA) baby may indicate a pre-existing metabolic dysfunction, whereas delivering a small-for-gestational-age (SGA) baby may indicate a pre-existing vascular dysfunction. This study aims to assess the risk of hypertension (HTN) and diabetes mellitus (DM) in women with normal body mass index (BMI) scores who did not experience gestational DM or hypertensive disorders during pregnancy based on the offspring’s birthweight.
Methods:
This retrospective nationwide study included women with normal BMI scores who delivered a singleton baby after 37 weeks. Women with a history of DM or HTN before pregnancy and those with gestational DM or hypertensive disorders, were excluded from the study. We compared the risk of future maternal outcomes (HTN and DM) according to the offspring’s birthweight. Multivariate analyses were performed to estimate the hazard ratio (HR) for the future risk of HTN or DM.
Results:
A total of 64,037 women were included in the analysis. Of these, women who delivered very LGA babies (birthweight > 97th percentile) were at a higher risk of developing DM than those who delivered appropriate-for-gestational-age (AGA) babies (adjusted HR = 1.358 [1.068–1.727]), and women who delivered very SGA babies (birthweight < 3rd percentile) were at a higher risk of developing HTN than those who delivered AGA babies (adjusted HR = 1.431 [1.181–1.734]), even after adjusting for age, parity, gestational age at delivery, fetal sex, maternal BMI score, and a history of smoking.
Conclusion
These findings provide a novel support for the use of the offspring’s birthweight as a predictor of future maternal diseases such as HTN and DM.
7.Impact of Awareness and Educational Experiences on Cardiopulmonary Resuscitation in the Ability to Execute of Cardiopulmonary Resuscitation among Korean Adults.
Jae Kwang LEE ; Jeongwoo KIM ; Kunil KIM ; Keunhyung KIM ; Dongphil KIM ; Yuri KIM ; Seonggeun MOON ; Byungju MIN ; Hwayoung YU ; Chealim LEE ; Wonyoung JEONG ; Changhun HAN ; Inho HUH ; Jung Hee PARK ; Moo Sik LEE
Journal of Agricultural Medicine & Community Health 2018;43(4):234-249
This study was performed to identify the impact of awareness and educational experiences on cardiopulmonary resuscitation in the ability to execute of cardiopulmonary resuscitation among Korean adults. This study used original data of 2014 Community Health Data Survey. 228,712 participants in this survey were resident in South Korea who is aged 19 or older on July 2014. Participants in this survey were sampled an average of 900 residents(target error ± 3 percent) per community health center of Korea. Data were analyzed by using R 3.1.3 employing chi-squared test, fisher's exact analysis, and logistic regression analysis. Ability to execute CPR was significantly higher in males(3.34 time), higher the education level (1.61 times), the white color occupation (1.14 times), the higher the income level (1.07 times), the higher the education level (0.91 times), non-hypertensive patients (1.12 times), non-diabetic patients (1.16 times), non-dyslipidemic patients (0.86 times), non-stroke patients (0.30 times), CPR education experience group (3.25 times), CPR experience group with manikin-based training (4.30 times), higher subjective health status (1.08 times, 1.16 times) respectively. This study identified that awareness, educational experience, and mannequin-based learning experience of CPR impacted on the ability to execute CPR. Responding to education-related factors could contribute to reducing the rate of out-of-hospital acute cardiac arrest by improving the ability to execute CPR of the general public.
Adult*
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Cardiopulmonary Resuscitation*
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Community Health Centers
;
Diagnostic Self Evaluation
;
Education
;
Heart Arrest
;
Humans
;
Korea
;
Learning
;
Logistic Models
;
Occupations
8.The timing of adenomyosis diagnosis and its impact on pregnancy outcomes: a national population-based study
Young Mi JUNG ; Wonyoung WI ; Hwa Seon KOO ; Seung-Hyuk SHIM ; Soo-young OH ; Seung Mi LEE ; Jin Hoon CHUNG ; SiHyun CHO ; Hyunjin CHO ; Min-Jeong OH ; Geum Joon CHO ; Hye-Sung WON
Obstetrics & Gynecology Science 2024;67(3):270-278
Objective:
Adenomyosis impacts pregnancy outcomes, although there is a lack of consensus regarding the actual effects. It is likely, however, that the severity of adenomyosis or ultrasound findings or timing of diagnosis can have different effects on adverse pregnancy outcomes (APOs).
Methods:
In this study, we aimed to investigate the impact of the timing of adenomyosis diagnosis on pregnancy outcomes. Singleton pregnant women who delivered between 2017 and 2022 were analyzed based on the timing of adenomyosis diagnosis, using a national database. The final cohort was classified into three groups: 1) group 1, without adenomyosis; 2) group 2, those diagnosed with adenomyosis before pregnancy; and 3) group 3, those diagnosed with adenomyosis during pregnancy.
Results:
A total of 1,226,475 cases were ultimately included in this study. Women with a diagnosis of adenomyosis had a significantly higher risk of APOs including hypertensive disorder during pregnancy (HDP), gestational diabetes mellitus (GDM), postpartum hemorrhage, placental abruption, preterm birth, and delivery of a small-for-gestational-age infant even after adjusting for covariates. In particular, concerning HDP, the risk was highest in group 3 (group 2: adjusted odds ratio [aOR], 1.15 vs. group 3: aOR, 1.36). However, the highest GDM risk was in group 2 (GDM; group 2: aOR, 1.24 vs. group 3: aOR, 1.04).
Conclusion
The increased risk of APO differed depending on the timing of adenomyosis diagnosis. Therefore, efforts for more careful monitoring and prevention of APOs may be necessary when such women become pregnant.