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Kim BG, Yuk JS, Kim GS, Seo JK, Jin MN, Lee HY, Seo YS, Kim MH, Yang SW, Yoon SH, Byun YS, Kim BO. Effect of early hysterectomy on a risk of incident cardiovascular disease in women: a nationwide population-based cohort study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Aim
Women who inevitably underwent surgical hysterectomy before natural menopause may have an earlier increase in hematocrit and storage iron than women who continue menstruation, thereby increasing the risk of cardiovascular disease (CVD) early. We aimed to evaluate the association of women with hysterectomy vs. without hysterectomy before their 50s with the risk of incident CVD.
Methods
This was a retrospective-cohort study, 135,575 women aged 40 to 50 years in 2011–2014 were extracted from the Korean Health Insurance Review and Assessment Service data and after propensity score matching, 55,539 pairs were included in hysterectomy and non-hysterectomy group respectively. The primary endpoint was major adverse cardiac and cerebrovascular events (MACCE), a composite of cardiovascular death, myocardial infarction (MI), stroke, and coronary artery revascularization.
Results
After adjustment for confounding factors, hysterectomy group had an increased risk of MACCE compared with non-hysterectomy group (hazard ratio [HR], 1.25; 95% confidence interval [CI], 1.09–1.44). Regarding individual outcomes, cardiovascular death, MI, and coronary revascularization were comparable between the groups, whereas, the risk of stroke was significantly higher in hysterectomy group than non-hysterectomy group (HR, 1.31; 95% CI, 1.12–1.53). Even after excluding women who underwent oophorectomy, hysterectomy group had a higher risk of MACCE than non-hysterectomy group (HR, 1.24; 95% CI 1.06–1.44).
Conclusions
Early surgical menopause due to hysterectomy, not hormonal menopause, was associated with an increased risk for a composite of CVD, especially stroke. This suggest that the role of “uterus” as well as sex hormones may be important for the sharp increase in the risk of CVD in women after menopause.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- B G Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J S Yuk
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - G S Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J K Seo
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - M N Jin
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - H Y Lee
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y S Seo
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - M H Kim
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - S W Yang
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - S H Yoon
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - Y S Byun
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B O Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
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Kim GS, Seo JK, Kim BG, Byun YS, Kim BO. Optimal strategy for antiplatelet therapy after endovascular revascularization in patients with lower extremity artery disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The duration of antiplatelet therapy after endovascular revascularization in patients with lower extremity artery disease (LEAD) has not been well established. This study aimed to evaluate the clinical outcome according to the duration of dual antiplatelet therapy (DAPT) in real practice.
Methods
From April 2009 to June 2019, 376 patients with LEAD underwent successful endovascular revascularization. After the procedure, the received single antiplatelet therapy (SAPT) or DAPT of various durations were classified into two groups (SAPT or DAPT <6 months vs. DAPT ≥6 months). The primary outcomes were major adverse cardiovascular events (MACEs) and major adverse limb events (MALEs). The safety outcome was moderate-to-severe bleeding according to the Global Use of Strategies to Open Occluded Arteries (GUSTO) criteria.
Results
Over the 40-month follow-up period, MACE occurred less frequently in the DAPT ≥6 months group than that in the SAPT or DAPT <6 months group (12.4% vs. 23.8%; hazard ratio [HR]: 0.56; 95% confidence interval [CI]: 0.35–0.89; p=0.014) after inverse probability-weighted adjustment and propensity-score matching analysis (HR: 0.55, 95% CI; 0.30–0.99, p=0.048). The incidence of MALE did not show significant difference between the two groups (DAPT ≥6 months group: 17.1% vs. SAPT or DAPT <6 months group: 13.1%; HR: 1.05; 95% CI: 0.62–1.78; p=0.846). A significant difference between the DAPT ≥6 months group and the SAPT or DAPT <6 months group was not observed regarding the incidence of moderate-to-severe GUSTO bleeding.
Conclusions
In patients with LEAD, DAPT for ≥6 months after endovascular revascularization was associated with a lower incidence of MACE.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): National Research Foundation of Korea (NRF) grant funded by the government of Korea (MSIT) (No. 2019R1G1A1100442).
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Affiliation(s)
- G S Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - J K Seo
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - B G Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - Y S Byun
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - B O Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
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Kim GS, Kim BK, Seo JK, Kim BO, Byun YS. The impact of statin treatment intensity after endovascular revascularization for lower extremity peripheral artery disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Purpose
There are few Asian studies on the clinical impact of statin intensity on clinical outcomes in patients with peripheral artery disease (PAD). This study investigated the clinical impact of statin intensity in patients with PAD after endovascular revascularization.
Material and methods
From April 2009 to June 2019, 376 patients with lower extremity PAD treated with endovascular revascularization were enrolled. They were classified into three groups according to statin intensity: no-statin, low-to-moderate intensity (LMI), and high-intensity (HI) groups. The primary outcomes were major adverse cardiovascular events (MACE) and major adverse limb events (MALE).
Results
During the 40-month follow-up, MACE occurred less in the HI and LMI groups than the no-statin group (11.4% vs. 16.0% vs. 39%, p<0.001). In the adjusted Cox models, the HI group had the lowest MACE (hazard ratio [HR]: 0.347; 95% confidence interval [CI] 0.144–0.834; p=0.018) and MALE (HR: 0.344; 95% CI 0.120–0.989, p=0.048), while the LMI group had fewer MACE (HR: 0.319; 95% CI 0.169–0.604, p=0.048) than the no-statin group. HI therapy was associated with better outcomes in terms of MALE (HR: 0.377; 95% CI: 0.208–0.684; p=0.001) and repeat revascularization (HR: 0.449; 95% CI: 0.243–0.830; p=0.011) than the LMI group after the inverse probability treatment weighting analysis.
Conclusions
HI and LMI statin use is associated with a significant reduction of MACE than no statin use. Regarding MALE, HI statin use was associated with better outcomes than no statin or LMI statin use.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1G1A1100442).
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Affiliation(s)
- G S Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - B K Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - J K Seo
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - B O Kim
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - Y S Byun
- Inje University, Sanggye Paik Hospital , Seoul , Korea (Republic of)
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Hong W, Park YK, Kim BO, Park SK, Shin J, Jang SP, Park HW, Yang W, Jang J, Jang SW, Hwang TH. Use of combined treatment of 3rd-generation cephalosporin, azithromycin and antiviral agents on moderate SARs-CoV-2 patients in South Korea: A retrospective cohort study. PLoS One 2022; 17:e0267645. [PMID: 35507600 PMCID: PMC9067652 DOI: 10.1371/journal.pone.0267645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 04/12/2022] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES To assess efficacy and safety of the combined treatment of antibiotics (3rd-generation cephalosporin and azithromycin) and antiviral agents (lopinavir/ritonavir or hydroxychloroquine) on moderate COVID-19 patients in South Korea. METHODS A retrospective cohort study of the 358 laboratory-confirmed SARS-CoV-2 (COVID-19) patients was conducted. 299 patients met inclusion criteria for analysis. Propensity score matching (PSM) and Cox regression method were used to control and adjust for confounding factors. Mild to moderate COVID-19 patients were managed with either CA/LoP (cephalosporin, azithromycin, and lopinavir/ritonavir) (n = 57), CA/HQ (cephalosporin, azithromycin, and hydroxychloroquine) (n = 25) or standard supportive care (n = 217). We analyzed the association between treatment group and standard supportive group in terms of three endpoints: time to symptom resolution, time to viral clearance, and hospital stay duration. Using propensity-score matching analysis, three rounds of propensity-matching analysis were performed to balance baseline characteristics among three cohorts. RESULTS Kaplan-Meier curves fitted using propensity score-matched data revealed no significant differences on time to symptom resolution, time to viral clearance, hospital stay duration among the three treatment arms (CA/LoP vs Standard, log-rank p-value = 0.2, 0.58, and 0.74 respectively for the three endpoints) (CA/HQ vs Standard, log-rank p-value = 0.46, 0.99, and 0.75 respectively). Similarly, Cox regression analysis on matched cohorts of CA/LoP and standard supportive group showed that hazard ratios of time to symptom resolution (HR: 1.447 [95%-CI: 0.813-2.577]), time to viral clearance(HR: 0.861, [95%-CI: 0.485-1.527]), and hospital stay duration (HR: 0.902, [95%-CI: 0.510-1.595]) were not significant. For CA/HQ and standard supportive group, hazard ratios of the three endpoints all showed no statistical significance (HR: 1.331 [95%-CI:0.631-2.809], 1.005 [95%-CI:0.480-2.105], and 0.887, [95%-CI:0.422-1.862] respectively). No severe adverse event or death was observed in all groups. CONCLUSIONS Combined treatment of 3rd cephalosporin, azithromycin and either low-dose lopinavir/ritonavir or hydroxychloroquine was not associated with better clinical outcomes in terms of time to symptom resolution, time to viral clearance, and hospital stay duration compared to standard supportive treatment alone. Microbiological evidence should be closely monitored when treating SARS-CoV-2 patients with antibiotics to prevent indiscreet administration of empirical antimicrobial treatments.
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Affiliation(s)
- Wooyoung Hong
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, United States of America
| | - Yu-Kyung Park
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Bong-Ok Kim
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Sung Kyu Park
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Jiin Shin
- School of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Soon-Pyo Jang
- Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, Hokkaido, Japan
| | - Hea-Woon Park
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Wonjong Yang
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Joonyoung Jang
- Korea Workers’ Compensation & Welfare Services Daegu Hospital, Buk-gu, Daegu, Republic of Korea
| | - Soon-Woo Jang
- Director of Bukha Public Health Center, Jangseong, Republic of Korea
- Pusan University, School of Medicine, Yangsan, Republic of Korea
| | - Tae-Ho Hwang
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-associated Diseases, School of Medicine, Pusan National University, Yangsan, Republic of Korea
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Uhm JS, Ahn JY, Hyun J, Sohn Y, Kim JH, Jeong SJ, Ku NS, Choi JY, Park YK, Yi HS, Park SK, Kim BO, Kim H, Choi J, Kang SM, Choi YH, Yoon HK, Jung S, Kim HN, Yeom JS, Park YS. Patterns of viral clearance in the natural course of asymptomatic COVID-19: Comparison with symptomatic non-severe COVID-19. Int J Infect Dis 2020; 99:279-285. [PMID: 32763446 PMCID: PMC7403105 DOI: 10.1016/j.ijid.2020.07.070] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 01/01/2023] Open
Abstract
Approximately 17% of the patients with COVID-19 exhibited no symptoms. The median time from diagnosis to negative conversion was about 2 weeks in the natural course of asymptomatic COVID-19. Time until negative conversion was shorter in asymptomatic COVID-19 than in symptomatic COVID-19. Rebound of cycle threshold values was not uncommon in follow-up RT-PCR assays.
Objectives The aim of this study was to elucidate patterns of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) clearance in the natural course of asymptomatic coronavirus disease 2019 (COVID-19). Methods Consecutive patients with non-severe COVID-19 were included retrospectively. Asymptomatic patients with a normal body temperature and no evidence of pneumonia throughout the disease course were assigned to the asymptomatic group. The reverse transcription PCR (RT-PCR) assay was repeated every two to five days after the first follow-up RT-PCR assay. Negative conversion was defined as two consecutive negative RT-PCR assay results within a 24-h interval. Rebound of the cycle threshold (Ct) value was defined as negative from the single RT-PCR assay and positive from the following assay. Results Among a total of 396 patients identified (median age 42.5 years (interquartile range (IQR) 25.0–55.0 years), 35.6% male), 68 (17.2%) were assigned to the asymptomatic group and 328 (82.8%) to the symptomatic group. The time until negative conversion was significantly shorter in the asymptomatic group than in the symptomatic group: median 14.5 days (IQR 11.0–21.0 days) and 18.0 days (IQR 15.0–22.0 days), respectively (p = 0.001). Rebound of Ct values was observed in 78 patients (19.7%). Conclusions Time until negative conversion is shorter in asymptomatic COVID-19 than in symptomatic COVID-19. Rebound of Ct values is not uncommon.
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Affiliation(s)
- Jae-Sun Uhm
- Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jin Young Ahn
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - JongHoon Hyun
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Yujin Sohn
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jung Ho Kim
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Su Jin Jeong
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Nam Su Ku
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jun Yong Choi
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Yu-Kyung Park
- Korea Workers' Compensation and Welfare Services, Daegu Hospital, 515 Hakjeong-ro, Buk-gu, Daegu, Republic of Korea
| | - Ho-Sung Yi
- Korea Workers' Compensation and Welfare Services, Daegu Hospital, 515 Hakjeong-ro, Buk-gu, Daegu, Republic of Korea
| | - Sung Kyu Park
- Korea Workers' Compensation and Welfare Services, Daegu Hospital, 515 Hakjeong-ro, Buk-gu, Daegu, Republic of Korea
| | - Bong-Ok Kim
- Korea Workers' Compensation and Welfare Services, Daegu Hospital, 515 Hakjeong-ro, Buk-gu, Daegu, Republic of Korea
| | - Hyewon Kim
- Chungju Medical Center, 239-50 Allim-ro, Chungju-si, Chungcheongbuk-do, Republic of Korea
| | - Jinwoo Choi
- Chungju Medical Center, 239-50 Allim-ro, Chungju-si, Chungcheongbuk-do, Republic of Korea
| | - Seung-Mo Kang
- Chungju Medical Center, 239-50 Allim-ro, Chungju-si, Chungcheongbuk-do, Republic of Korea
| | - Yeong Ho Choi
- Chungju Medical Center, 239-50 Allim-ro, Chungju-si, Chungcheongbuk-do, Republic of Korea
| | - Hae Kyoung Yoon
- Chungju Medical Center, 239-50 Allim-ro, Chungju-si, Chungcheongbuk-do, Republic of Korea
| | - Sunkyung Jung
- Molecular Diagnostics Testing Center, Seegene Medical Foundation, 320 Cheonho-daero, Seongdong-gu, Seoul, Republic of Korea
| | - Hyeong Nyeon Kim
- Samkwang Medical Laboratories, 57 Baumoi-ro 41-gil, Seocho-gu, Seoul, Republic of Korea
| | - Joon-Sup Yeom
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
| | - Yoon Soo Park
- Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
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Abstract
Background Coronavirus disease (COVID-19) is rapidly spreading worldwide. Although 10–20% of patients with COVID-19 have severe symptoms, little is known about the risk factors related to the aggravation of COVID-19 symptoms from asymptomatic or mild to severe disease states. Methods This retrospective study included 211 patients who were asymptomatic or with mild presentations of COVID-19. We evaluated the differences in demographic and clinical data between the cured (discharged to home) and transferred (aggravated to severe-stage COVID-19) groups. Results A multivariate logistic analysis showed that body temperature, chills, initial chest X-ray findings, and the presence of diabetes were significantly associated with predicting the progression to severe stage of COVID-19 (p < 0.05). The odds ratio of transfer in patients with COVID-19 increased by 12.7-fold for abnormal findings such as haziness or consolidation in initial chest X-ray, 6.32-fold for initial symptom of chills, and 64.1-fold for diabetes. Conclusions Even if patients are asymptomatic or have mild symptoms, clinicians should closely observe patients with COVID-19 presenting with chills, body temperature > 37.5 °C, findings of pneumonia in chest X-ray, or diabetes.
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Affiliation(s)
- Min Cheol Chang
- Department of Rehabilitative Medicine, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Yu-Kyung Park
- Department of Internal Medicine, Korea Worker's Compensation & Welfare Service Daegu Hospital, Daegu, Republic of Korea
| | - Bong-Ok Kim
- Department of Rehabilitation Medicine, Korea Worker's Compensation & Welfare Service Daegu Hospital, Daegu, Republic of Korea
| | - Donghwi Park
- Department of Physical Medicine and Rehabilitation, Ulsan University Hospital, University of Ulsan College of Medicine, 877, Bangeojin sunhwando-ro, Ulsan, 44033, Dong-gu, Republic of Korea.
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Youn KJ, Ahn SY, Kim BO, Park IS, Bok SK. Long-Term Effect of Rigid Foot Orthosis in Children Older Than Six Years With Flexible Flat Foot. Ann Rehabil Med 2019; 43:224-229. [PMID: 31072089 PMCID: PMC6509577 DOI: 10.5535/arm.2019.43.2.224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/17/2018] [Indexed: 11/24/2022] Open
Abstract
Objective To evaluate the long-term effect of a custom-made rigid foot orthosis (RFO) in children older than 6 years with pes planus (flat foot). Methods Medical records of 42 children diagnosed with flexible pes planus who were fitted with RFOs based on the inverted technique and underwent more than four consecutive radiological studies were reviewed. Resting calcaneal stance position (RCSP), anteroposterior talocalcaneal angle, lateral talocalcaneal angle, lateral talometatarsal angle, and calcaneal pitch were initially measured in both feet to evaluate alignment. Followup clinical and radiological evaluations were then performed at 12–18, 24–30, 36–42, and ≥48 months after RFO application. Repeated measures analysis of variance was used to evaluate significant differences. Results Significant improvements in all radiological indicators and significant progression of RCSP toward the corrective direction were observed after RFO application relative to baseline measurements. Conclusion According to our findings, RFO can induce significant improvements in calcaneus-related radiographic indices and subsequently improve talus-related radiologic indices.
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Affiliation(s)
- Kyo-Jun Youn
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - So Young Ahn
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Bong-Ok Kim
- Korea Worker's Compensation & Welfare Service Daegu Hospital, Daegu, Korea
| | | | - Soo-Kyung Bok
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
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Kim BO, Seo JK, Kim GS, Lee HY. P3515Systolic blood pressure difference between arms and chronic kidney disease in the community based 10-year cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3515] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- B O Kim
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - J K Seo
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - G S Kim
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - H Y Lee
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
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Kim GS, Kim BO, Seo JK, Lee HY, Jung IH, Byun YS. P1280Non-alcoholic fatty liver disease and hypertension in the community based cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1280] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G S Kim
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - B O Kim
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - J K Seo
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - H Y Lee
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - I H Jung
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
| | - Y S Byun
- Inje University, Sanggye-Paik Hospital, Cardiology, SEOUL, Korea Republic of
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Affiliation(s)
- Sang Hyun Kim
- Graduate School of Public Health, Yonsei University, Seoul, Korea
| | - Bong-Ok Kim
- Korean Medical Women's Association, Seoul, Korea
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Soon-Won Hong
- Korean Medical Women's Association, Seoul, Korea
- Department of Pathology, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun-Young Shin
- Korean Medical Women's Association, Seoul, Korea
- Department of Family Medicine, Myongji Hospital, Goyang, Korea
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Shin HY, Lee HA, Kim BO. Efforts to reflect on and resolve sexual violence in the medical field in Korea. J Korean Med Assoc 2018. [DOI: 10.5124/jkma.2018.61.6.348] [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: 11/06/2022] Open
Affiliation(s)
- Hyun-Young Shin
- Korean Medical Women's Association, Seoul, Korea
- Department of Family Medicine, Myongji Hospital, Goyang, Korea
| | - Hyang Aie Lee
- Korean Medical Women's Association, Seoul, Korea
- Dongho Clinic, Seoul, Korea
| | - Bong-Ok Kim
- Korea Workers' Compensation & Welfare Service Daegu Hospital, Daegu, Korea
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12
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Shin HY, Jee YM, Park KA, Kim BO. Global reach of Korean women doctors. J Korean Med Assoc 2018. [DOI: 10.5124/jkma.2018.61.2.96] [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: 11/06/2022] Open
Affiliation(s)
- Hyun-Young Shin
- Korean Medical Women's Association, Seoul, Korea
- Department of Family Medicine, Myongji Hospital, Goyang, Korea
| | - Young-Mee Jee
- Center for Infectious Disease Research, Korea Centers for Disease Control and Prevention, Osong, Korea
| | - Kyung Ah Park
- Korean Medical Women's Association, Seoul, Korea
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
| | - Bong-Ok Kim
- Korean Medical Women's Association, Seoul, Korea
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
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Rim SY, Kim SH, Kim BO, Shin HY. Historical footsteps of Korean women doctors during modernization in Korea. J Korean Med Assoc 2018. [DOI: 10.5124/jkma.2018.61.2.90] [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: 11/06/2022] Open
Affiliation(s)
- Seon Yeong Rim
- Korean Medical Women's Association, Seoul, Korea
- Dr. Rim's Obstetrics & Gynecology Clinic, Seoul, Korea
| | - Sook Hee Kim
- Korean Medical Women's Association, Seoul, Korea
- Seoul Medical Association, Seoul, Korea
| | - Bong-Ok Kim
- Korean Medical Women's Association, Seoul, Korea
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Hyun-Young Shin
- Korean Medical Women's Association, Seoul, Korea
- Department of Family Medicine, Myongji Hospital, Goyang, Korea
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Lee KH, Bin H, Kim K, Ahn SY, Kim BO, Bok SK. Hand Functions of Myoelectric and 3D-Printed Pressure-Sensored Prosthetics: A Comparative Study. Ann Rehabil Med 2017; 41:875-880. [PMID: 29201828 PMCID: PMC5698676 DOI: 10.5535/arm.2017.41.5.875] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/16/2017] [Indexed: 11/26/2022] Open
Abstract
The loss of an upper limb significantly limits the functional activities of daily living. A huge emphasis is placed on the manipulation, shape, weight, and comfort of a prosthesis, to enable its use as an inherent body part. Even with technological advances, customized upper-extremity myoelectric prosthesis remain heavy and expensive. The high cost of upper-extremity prosthesis is an especially steep economic barrier for patients. Three-dimensional (3D) printing is a promising avenue for reducing the cost of prosthesis. We applied 3D-printed pressure-sensored prosthetics to a traumatic transradial amputee, and compared the hand functions with a customized myoelectric prosthesis. The 3D-printed pressure-sensored prosthetics showed low grip strength and decreased dexterity compared to the conventional myoelectric prosthesis. Although there were a few limitations, the fabrication of prosthesis with 3D printing technology can overcome previous problems such as high production cost, long fabrication period and heavy weight.
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Affiliation(s)
- Kyu Ho Lee
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hobeom Bin
- Department of Prosthetics and Orthotics, Chungnam National University Hospital, Daejeon, Korea
| | - KeunBae Kim
- Chief Technology Officer, FunMove, Busan, Korea
| | - So Young Ahn
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Bong-Ok Kim
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Soo-Kyung Bok
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
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15
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Jung JY, Cha EJ, Kim KA, Won Y, Bok SK, Kim BO, Kim JJ. Influence of pelvic asymmetry and idiopathic scoliosis in adolescents on postural balance during sitting. Biomed Mater Eng 2016; 26 Suppl 1:S601-10. [PMID: 26406054 DOI: 10.3233/bme-151351] [Citation(s) in RCA: 8] [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] [Indexed: 11/15/2022]
Abstract
The effects of pelvic asymmetry and idiopathic scoliosis on postural balance during sitting were studied by measuring inclination angles, pressure distribution, and electromyography. Participants were classified into a control group, pelvic asymmetry group, scoliosis group, and scoliosis with pelvic asymmetry and then performed anterior, posterior, left, and right pelvic tilting while sitting on the unstable board for 5 seconds to assess their postural balance. Inclination and obliquity angles between the groups were measured by an accelerometer located on the unstable board. Pressure distribution (maximum force and peak pressure) was analyzed using a capacitive seat sensor. In addition, surface electrodes were attached to the abdominal and erector spinae muscles of each participant. Inclination and obliquity angles increased more asymmetrically in participants with both pelvic asymmetry and scoliosis than with pelvic asymmetry or scoliosis alone. Maximum forces and peak pressures of each group showed an asymmetrical pressure distribution caused by the difference in height between the left and right pelvis and curve type of the patients' spines when performing anterior, posterior, left, and right pelvic tilting while sitting. Muscle contraction patterns of external oblique, thoracic erector spinae, lumbar erector spinae, and lumbar multifidus muscles may be influenced by spine curve type and region of idiopathic scoliosis. Asymmetrical muscle activities were observed on the convex side of scoliotic patients and these muscle activity patterns were changed by the pelvic asymmetry. From these results, it was confirmed that pelvic asymmetry and idiopathic scoliosis cause postural asymmetry, unequal weight distribution, and muscular imbalance during sitting.
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Affiliation(s)
- Ji-Yong Jung
- Department of Healthcare Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 561-756, South Korea
| | - Eun-Jong Cha
- Department of Biomedical Engineering, College of Medicine, Chungbuk National University, 52 Naesudong-ro, Seowon-gu, Cheongju, Chungbuk 361-763, South Korea
| | - Kyung-Ah Kim
- Department of Biomedical Engineering, College of Medicine, Chungbuk National University, 52 Naesudong-ro, Seowon-gu, Cheongju, Chungbuk 361-763, South Korea
| | - Yonggwan Won
- Department of Electronics and Computer Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, South Korea
| | - Soo-Kyung Bok
- Department of Rehabilitation Medicine, Chungnam National University Hospital, 220 Gung-dong, Yuseong-gu, Daejeon-si, Chungchungnam-do 301-721, South Korea
| | - Bong-Ok Kim
- Department of Rehabilitation Medicine, Chungnam National University Hospital, 220 Gung-dong, Yuseong-gu, Daejeon-si, Chungchungnam-do 301-721, South Korea
| | - Jung-Ja Kim
- Division of Biomedical Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 561-756, South Korea.,Research Center of Healthcare & Welfare Instrument for the Aged, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 561-756, South Korea
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16
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Seo J, Ahn Y, Zheng Z, Kim BO, Choi MJ, Bang D, Kim DY. Clinical significance of serum YKL-40 in Behçet disease. Br J Dermatol 2016; 174:1337-44. [PMID: 26708309 DOI: 10.1111/bjd.14376] [Citation(s) in RCA: 6] [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] [Accepted: 12/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Serum YKL-40 is an inflammatory biomarker of endothelial dysfunction and may play a role in the inflammatory process of Behçet disease (BD). OBJECTIVES Serum YKL-40 levels were evaluated in patients with BD in order to identify associations with other inflammatory cytokines and establish laboratory parameters. Serum YKL-40 levels were also compared with BD clinical features and disease activity. METHODS In total, 112 patients with BD and 45 age- and sex-matched healthy volunteers were included. Disease activity was assessed with BD Current Activity Form score and Electronic Medical Record-based Activity Index (EMRAI) score. RESULTS Serum YKL-40 levels were significantly higher in patients with BD (median 41·88, range 12·52-171·30 ng mL(-1) ) than in healthy volunteers (median 20·92, range 5·01-64·20 ng mL(-1) ; P < 0·01). The cut-off value for YKL-40 (30·005 ng mL(-1) ) was determined from the receiver operating characteristic curve. EMRAI scores and the proportion of patients in the active phase of BD presenting with two or more major criteria were significantly higher in patients with elevated YKL-40 levels (P = 0·04 and P = 0·04, respectively). A statistically significant elevation in YKL-40 levels was observed in patients with active BD compared with patients with inactive BD (P = 0·05). Serum YKL-40 values were positively correlated with interleukin-6 and EMRAI scores (both P = 0·04), indicating that serum YKL-40 levels are increased in patients with BD and positively correlate with disease activity. CONCLUSIONS YKL-40 may play a role in the pathophysiology of BD and provide a useful marker for monitoring patients with BD.
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Affiliation(s)
- J Seo
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Y Ahn
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Z Zheng
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.,Department of Dermatology, Yanbian University Hospital, Yanji, China
| | - B O Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - M J Choi
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - D Bang
- Department of Dermatology, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Korea
| | - D Y Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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17
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Bok SK, Kim BO, Lim JH, Ahn SY. Effects of custom-made rigid foot orthosis on pes planus in children over 6 years old. Ann Rehabil Med 2014; 38:369-75. [PMID: 25024961 PMCID: PMC4092178 DOI: 10.5535/arm.2014.38.3.369] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 02/17/2014] [Indexed: 11/06/2022] Open
Abstract
Objective To identify the effects of a custom-made rigid foot orthosis (RFO) in children over six years old with pes planus. Methods The medical records of 39 children (mean age, 10.3±4.09 years) diagnosed with pes planus, fitted with RFOs, and had who more than two consecutive radiological studies were reviewed. The resting calcaneal stance position (RCSP), anteroposterior talocalcaneal angle (APTCA), lateral talocalcaneal angle (LTTCA), the lateral talometatarsal angle (LTTMA), and calcaneal pitch (CP) of both feet were measured to evaluate foot alignment. After diagnosis, children were fitted with a pair of RFOs and recommended to walk with heel strike and reciprocal arm swing to normalize the gait pattern. A follow-up clinical evaluation with radiological measurements was performed after 12-18 months and after 24 months of RFO application. Post-hoc analysis was used to test for significant differences between the radiological indicators and RCSP. Results With RFOs, all radiological indicators changed in the corrective direction except LTTCA. RCSP and CP in the third measurement showed significant improvement in comparison with the second and baseline measurements. Additionally, APTCA and LTTMA revealed improvements at the third measurement versus the baseline measurements. Conclusion This study revealed that radiological indicators improved significantly after 24 months of RFO application. A prospective long-term controlled study with radiographical evaluation is necessary to confirm the therapeutic effects of RFOs and to determine the optimal duration of wear in children with pes planus.
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Affiliation(s)
- Soo-Kyung Bok
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Bong-Ok Kim
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Jun-Ho Lim
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - So-Young Ahn
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, Korea
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18
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Nam EJ, Kim JH, Kim BO, Kim SM, Park NG, Kim YS, Kim YK, Ha Y. A Synthesis and Luminescence Study of Ir(ppz)3for Organic Light-Emitting Devices. BCSJ 2004. [DOI: 10.1246/bcsj.77.751] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Kang SG, Lee DY, Maeda M, Kim ES, Choi D, Kim BO, Yoon HK, Sung KB, Song HY. Aortic dissection: percutaneous management with a separating stent-graft--preliminary results. Radiology 2001; 220:533-9. [PMID: 11477265 DOI: 10.1148/radiology.220.2.r01au24533] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [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: 11/11/2022]
Abstract
The authors used a separating stent-graft to treat Stanford type B aortic dissection. The separating stent-graft consists of two stents: a stent-graft and an inner bare stent. The separating stent-graft has three parts: a proximal stent, a graft made of synthetic polyester textile fiber, and a distal stent. A 12-F introducing sheath was used. After the separating stent-graft was placed, false-lumen thrombosis was evident in all six patients during a follow-up period of 206 days. The major advantages of this technique are that a cutdown and blood pressure control are not required.
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Affiliation(s)
- S G Kang
- Department of Diagnostic Radiology Chosun University College of Medicine, Kwangju, Korea
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20
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Park JC, Kim YB, Kim HJ, Jang HS, Kim HS, Kim BO, Han KY. Isolation and characterization of cultured human periodental ligament fibroblast-specific cDNAs. Biochem Biophys Res Commun 2001; 282:1145-53. [PMID: 11302735 DOI: 10.1006/bbrc.2001.4694] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 11/22/2022]
Abstract
The molecular mechanisms that control the function of periodontal ligament (PDL) fibroblasts remain unclear. We speculated that the character of differentiating PDL fibroblasts is defined by the altered expansion of specific genes not found in neighboring gingival fibroblasts in the periodontium. To expand this set, subtractive hybridization was applied between cultured human PDL and gingival fibroblasts to identify genes differentially expressed in PDL. Consequently five candidate clones, PDLs (periodontal ligament specific) 5, -17, -22, -25, and -31 were identified and characterized by homology search, Northern analysis, and in situ hybridization. Although the mRNAs of these clones were expressed by bone marrow cells and rarely by gingival fibroblasts, the highest expression was detected in the PDL cells, which were uniformly distributed throughout the whole PDL. Amongst the five candidate clones, we focused on PDLs17, because it is a hypothetical protein whose biological function has not been reported yet in the database. Polyclonal antiserum raised against PDLs17 peptide was made, and stained the PDL fibroblasts, osteoblast-like cells and stromal cells in the bone marrow, but not gingival fibroblasts. The results suggest that clones, PDLs5, -17, -22, -25, and -31 may be used as PDL fibroblast-specific markers, and that PDLs17 could act as an important factor in the differentiation process of PDL fibroblasts.
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Affiliation(s)
- J C Park
- Department of Oral Histology, Chosun University, 375 Seo-Suk Dong, Dong-ku, Kwang-ju, 501-759, Korea.
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21
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Kim BO, Shin SS, Yoo YH, Pyo S. Peroral immunization with Helicobacter pylori adhesin protein genetically linked to cholera toxin A2B subunits. Clin Sci (Lond) 2001; 100:291-8. [PMID: 11222115] [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
Helicobacter pylori is a major cause of gastric-associated diseases. To evaluate the efficacy of a possible vaccine antigen against H. pylori infection, the chimaeric construct adhesin--CTXA2B, derived from H. pylori adhesin genetically coupled to cholera toxin (CTX) subunits A2 and B (CTXA2B), was expressed in Escherichia coli as an insoluble recombinant chimaeric protein. The protein was then purified by denaturation, renaturation and size-exclusion chromatography. The composition of purified adhesin--CTXA2B was verified by SDS/PAGE and Western blotting with antibodies to antigenic components of adhesin and CTXB, and confirmed as a chimaeric protein with G(M1)-ganglioside binding activity and adhesin epitopes by a G(M1)-ELISA developed using antibodies to adhesin. Oral immunization of mice with adhesin--CTXA2B induced higher levels of mucosal IgA and serum IgG antibodies to H. pylori adhesin and to CTXB than in mice immunized with adhesin or CTXA2B alone. Adhesin--CTXA2B was also demonstrated to be a potential protective antigen in a mouse model of H. pylori infection. The immunization of mice with adhesin--CTXA2B protected 62.5% of mice infected with H. pylori SS1 strain, whereas adhesin immunization was not able to confer protection to mice. This protection may be correlated with high levels of mucosal IgA and serum IgG antibodies against H. pylori adhesin. Taken together, the results indicate that the genetically linked CTXA2B acts as a useful mucosal adjuvant, and that the adhesin-CTXA2B chimaeric protein could be a potential component in future H. pylori vaccine development.
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Affiliation(s)
- B O Kim
- School of Pharmacy, Sung Kyun Kwan University, Suwon, 440-746, Kyunggi-Do, South Korea
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22
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Um SH, Son EW, Kim BO, Moon EY, Rhee DK, Pyo S. Activation of murine peritoneal macrophages by Streptococcus pneumoniae type II capsular polysaccharide: involvement of CD14-dependent pathway. Scand J Immunol 2000; 52:39-45. [PMID: 10886782 DOI: 10.1046/j.1365-3083.2000.00749.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 11/20/2022]
Abstract
In this study we examined the ability of capsular polysaccharide type 2 (PS) from Streptococcus pnemoniae to induce secretory and cellular responses in peritoneal macrophages. Tumour cytotoxicity induced by preincubation with PS was demonstrated to be concentration-dependent. PS-induced tumouricidal activity was partially abrogated by anti-tumour necrosis factor (TNF)-alpha and inhibitor of nitric oxide, whereas anti-interferon (IFN)-alpha/beta antibody and the scavengers of reactive oxygen intermediates had no effect. In addition, supernatants from macrophages treated with PS contained TNF-alpha, and their iNOS-enzymatic activity was significantly increased. Thus, the tumouricidal activity induced by PS appeared to be mediated by the production of TNF-alpha and nitrite. Treatment of macrophages with PS increased the expression of CD14, the receptor for lipolysaccharide (LPS)/LPS-binding protein. Moreover, blocking antibody to CD14 abrogated partially TNF-alpha and nitrite induction by PS, suggesting that the PS-induced CD14 upregulation was correlated with secretion of TNF-alpha and nitrite. Taken together, these results demonstrate that PS may induce macrophage-secretory and cellular activities, in part, possibly via CD14-dependent pathway.
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Affiliation(s)
- S H Um
- Division of Immunopharmacology, College of Pharmacy, Sungkyunkwan University, Suwon city, Kyunggi-do, 440-746 South Korea
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Sohn JH, Lee BH, Park SH, Ryu JW, Kim BO, Park YG. Microinjection of opiates into the periaqueductal gray matter attenuates neuropathic pain symptoms in rats. Neuroreport 2000; 11:1413-6. [PMID: 10841348 DOI: 10.1097/00001756-200005150-00012] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 11/26/2022]
Abstract
We have previously demonstrated that electrical stimulation of the ventral periaqueductal gray matter (PAG) produced analgesia in neuropathic pain in rats. Opioids were also shown to be involved in analgesic effects. This study sought to determine whether opiates microinjected into the ventral PAG produce analgesia. Male Sprague-Dawley rats were chronically implanted with a guide cannula in the PAG under pentobarbital anesthesia and both the tibial and sural nerves were completely cut. Pain sensitivity was postoperatively measured with a von Frey filament and acetone applied to the sensitive area for 1 week. Opioids such as [D-Ala2,N-MePhe4,Gly(ol)5]-enkephalin (DAMGO) and [D-Pen ,D-Pen5]-enkephalin (DPDPE) were injected into the PAG. DAMGO, a mu-opioid agonist, and DPDPE, a delta-opioid agonist, were highly effective in reducing neuropathic pain. These effects were reversed by naloxone. These results suggest that the neurons in the ventral PAG are activated by opioids to produce analgesia and that specific opioid receptors are involved in the descending pain inhibition system from the PAG.
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MESH Headings
- Analgesics, Opioid/pharmacology
- Animals
- Behavior, Animal/drug effects
- Cold Temperature
- Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/pharmacology
- Enkephalin, D-Penicillamine (2,5)-/pharmacology
- Male
- Microinjections
- Neuralgia/drug therapy
- Neuralgia/physiopathology
- Periaqueductal Gray/chemistry
- Periaqueductal Gray/physiopathology
- Physical Stimulation
- Rats
- Rats, Sprague-Dawley
- Receptors, Opioid, delta/physiology
- Receptors, Opioid, mu/physiology
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Affiliation(s)
- J H Sohn
- Department of Psychology, Institute for Brain Research, Chungnam National University, Taejon, Korea
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Abstract
BACKGROUND Epidemiological studies suggest a relationship between periodontitis and coronary artery disease, but the mechanism has not been established. Recent studies in animals indicate that low dose endotoxin, as in a gram-negative infection, can induce hyperlipidemia and myeloid cell hyperactivity. The association between periodontitis, systemic exposure to Porphyromonas gingivalis, lipopolysaccharides (LPS), and hyperlipidemia has not been examined in humans. METHODS Sera were obtained from 26 adult periodontitis patients and 25 healthy control (C) subjects selected from patients and staff. Serum antibodies against Porphyromonas gingivalis and its LPS were analyzed by enzyme-linked immunosorbent assay (ELISA) and Western blotting, respectively. Serum triglycerides (TG) and cholesterol (CHOL) were assayed by a commercial laboratory. The associations between AP and blood levels of TG, CHOL, and anti-P. gingivalis whole cells and LPS were examined by logistic regression analysis. Peripheral blood polymorphonuclear leukocytes (PMNs) from 6 healthy fasted donors were incubated with purified TG (0.1 mg/ml) for 2 hours at 37 degrees C, stimulated with 100 ng/ml P. gingivalis LPS, and the release of IL-1beta measured by ELISA. RESULTS The presence of periodontitis was significantly associated with age (odds ratio = 3.5, P = 0.04), elevated TG levels (odds ratio = 8.6, P = 0.0009), elevated CHOL levels (odds ratio = 7, P = 0.004), elevated ELISA titer (odds ratio = 35, P = 0.003) and reactivity with P. gingivalis LPS (odds ratio = 41, P = 0.001). PMNs from all 6 healthy patients released modest levels of IL-1beta (10 to 60 pg/ml) when stimulated with 100 ng/ml P. gingivalis LPS. Addition of TG resulted in a significant increase (P <0.05) in IL- 1beta secreted that ranged from 7 to 150% over LPS alone. No IL-1beta was elicited by TG or vehicle alone. CONCLUSIONS The results of this study indicate the presence of a significant relationship between periodontitis, hyperlipidemia, and serum antibodies against P. gingivalis LPS that warrants further examination in a larger patient population. Furthermore, these studies indicate that elevated triglycerides are able to modulate IL-1beta production by PMNs stimulated with P. gingivalis LPS.
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Affiliation(s)
- C W Cutler
- Department of Periodontics and Biomedical Sciences, Baylor College of Dentistry, Dallas, TX 75266-0677, USA.
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Ha JW, Chung N, Yoon J, Jang Y, Kim BO, Cho SY, Cho BK. Pulsed wave and color Doppler echocardiography and cardiac catheterization findings in bilateral pulmonary vein stenosis. J Am Soc Echocardiogr 1998; 11:393-6. [PMID: 9571591 DOI: 10.1016/s0894-7317(98)70109-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pulmonary vein stenosis is a rare condition that usually is congenital in origin; it is almost invariably fatal in its bilateral and severe forms. It is often overlooked, however, during clinical examination, routine echocardiography, and even at cardiac catheterization. This report describes the pulsed Doppler, color flow echocardiography, and hemodynamic findings of bilateral pulmonary vein stenosis that accompany ventricular septal defect and atrial septal defect corrected by surgery.
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Affiliation(s)
- J W Ha
- Cardiology Division, Yonsei Cardiovascular Center, Yonsei University, College of Medicine, Seoul, Korea
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26
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Kim BO, Lee G, Plummer EW, Dowben PA, Liebsch A. Mercury surface-plasmon dispersion: Experiment and theory. Phys Rev B Condens Matter 1995; 52:6057-6066. [PMID: 9981796 DOI: 10.1103/physrevb.52.6057] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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27
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Choi KH, Kim DJ, Shim JS, Choi MJ, Park NJ, Kim BO, Yu YH, Choi EC. In-vitro and in-vivo activity of DWC-751, a new cephalosporin. J Antimicrob Chemother 1994; 33:1233-7. [PMID: 7646611 DOI: 10.1093/jac/33.6.1233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- K H Choi
- College of Pharmacy, Seoul National University, Korea
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Chung JW, Baek DH, Kim BO, Yeom HW, Kim CY, Jeong JI, Shin HJ. Interaction of low-energy oxygen ions with the Si(100) surface. Phys Rev B Condens Matter 1992; 45:1705-1711. [PMID: 10001671 DOI: 10.1103/physrevb.45.1705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
To evaluate type 1 hypersensitivity to reactive dyes, its prevalence, and its relationship to respiratory dysfunction, we studied clinical and immunologic features, including skin prick tests. RAST, and bronchoprovocation tests, of 309 employees working in a reactive-dye industry. Our survey revealed that 78 (25.2%) employees had work-related lower respiratory symptoms associated with or without nasal, skin, or eye symptoms. Among these employees, 38 (48.7%) had nonspecific bronchial reactivity. Thirteen demonstrated immediate (6), dual (6), or late only (1) asthmatic responses after inhalation of four kinds of reactive-dye solutions. Twenty-five employees demonstrated immediate skin responses to black GR dye, and 21 reacted to orange 3R. Fifty-three employees (17%) had specific serum IgE antibody against black GR and orange 3R-human serum albumin conjugate. Specific IgE was detected more frequently in symptomatic employees (30%) and smokers (100%). No association was found between atopy and specific IgE binding. The RAST-inhibition tests of black GR revealed significant inhibitions by black GR-human serum albumin conjugate and minimal inhibitions by unconjugated black GR. Orange 3R RAST-inhibition tests revealed significant inhibitions by conjugated forms of black GR and orange 3R and some inhibitions by two unconjugated dyes, suggesting an immunologic cross-reactivity between these dyes. These findings suggested that reactive dyes could induce immunologic responses, most likely IgE-mediated.
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Affiliation(s)
- H S Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
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Kim BO. [Case study of a myocardial infarction patient]. Taehan Kanho 1988; 27:54-7. [PMID: 3204979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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