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Brachial-ankle PWV for predicting clinical outcomes in patients with acute stroke
Ahn, Kye Taek,Jeong, Jin-Ok,Jin, Seon-Ah,Kim, Mijoo,Oh, Jin Kyung,Choi, Ung-lim,Seong, Seok-Woo,Kim, Jun Hyung,Choi, Si Wan,Jeong, Hye Seon,Song, Hee-Jung,Kim, Jei,Seong, In-Whan Informa UK (Taylor Francis) 2017 Blood pressure Vol.26 No.4
Kye Taek Ahn,Jin Kyung Oh,Seok-Woo Seong,Seon Ah Jin,이재환,Si Wan Choi,정명호,Shung Chull Chae,Young Jo Kim,Chong Jin Kim,Hyo-Soo Kim,Myeong Chan Cho,Hyeon-Cheol Gwon,Jin-Ok Jeong,In Whan Seong 대한심장학회 2020 Korean Circulation Journal Vol.50 No.3
Background and Objectives: Although complete revascularization is known superior to incomplete revascularization in ST elevation myocardial infarction (STEMI) patients with multi-vessel coronary artery disease (MVCD), there are no definite instructions on the optimal timing of non-culprit lesions percutaneous coronary intervention (PCI). We compared 1-year clinical outcomes between 2 different complete multi-vessel revascularization strategies. Methods: From the Korea Acute Myocardial Infarction Registry-National Institute of Health, 606 patients with STEMI and MVCD who underwent complete revascularization were enrolled from November 2011 to December 2015. The patients were assigned to multi-vessel single-staged PCI (SS PCI) group (n=254) or multi-vessel multi-staged PCI (MS PCI) group (n=352). Propensity score matched 1-year clinical outcomes were compared between the groups. Results: At one year, MS PCI showed a significantly lower rate of all-cause mortality (hazard ratio [HR], 0.42; 95% confidential interval [CI], 0.19–0.92; p=0.030) compared with SS PCI. In subgroup analysis, all-cause mortality increased in SS PCI with cardiogenic shock (HR, 4.60; 95% CI, 1.54–13.77; p=0.006), age ≥65 years (HR, 4.00; 95% CI, 1.67–9.58, p=0.002), Killip class III/IV (HR, 7.32; 95% CI, 1.68–31.87; p=0.008), and creatinine clearance ≤60 mL/min (HR, 2.81; 95% CI, 1.10–7.18; p=0.031). After propensity score-matching, MS PCI showed a significantly lower risk of major adverse cardiovascular event than SS PCI. Conclusions: SS PCI was associated with worse clinical outcomes compared with MS PCI. MS PCI for non-infarct-related artery could be a better option for patients with STEMI and MVCD, especially high-risk patients.
Ahn, Kye Taek,Seong, Seok-Woo,Choi, Ung Lim,Jin, Seon-Ah,Kim, Jun Hyung,Lee, Jae-Hwan,Choi, Si Wan,Jeong, Myung Ho,Chae, Shung Chull,Kim, Young Jo,Kim, Chong Jin,Kim, Hyo-Soo,Cho, Myeong-Chan,Gwon, Hy Williams & Wilkins Co 2019 Medicine Vol.98 No.11
<▼1><P>Supplemental Digital Content is available in the text</P></▼1><▼2><P><B>Abstract</B></P><P>Although the new oral P2Y<SUB>12</SUB> inhibitors, prasugrel/ticagrelor have shown greater efficacy than clopidogrel in patients with the acute coronary syndrome, but they have not shown better efficacy in Korean patients. So we evaluated the efficacy of the prasugrel/ticagrelor in patients with myocardial infarction (MI) and diabetes, a more high-risk patients group.</P><P>From the Korea Acute Myocardial Infarction Registry-National Institute of Health, 3985 patients with MI and diabetes who underwent PCI were enrolled between November 2011 and December 2015. The patients were divided into 2 groups: clopidogrel (n = 2985) and prasugrel/ticagrelor (n = 1000).</P><P>After propensity score matching, prasugrel/ticagrelor group showed a no significant difference in risk of the composite of cardiac death (CD), recurrent MI or stroke (hazard ratio [HR], 0.705; 95% confidence interval [CI], 0.474–1.048; <I>P</I> = .084). However, the risk of major bleeding was significantly higher in the prasugrel/ticagrelor group. (HR; 2.114, 95% CI; [1.027–4.353], <I>P</I> = .042). In subgroup analysis, major bleeding was significantly increased in the subgroup of creatinine clearance <60 ml/min/1.73 m<SUP>2</SUP>, hypertension, underwent a trans-femoral approach and diagnosed as NSTEMI among the prasugrel/ticagrelor group.</P><P>The use of prasugrel/ticagrelor did not improve the composite of CD, recurrent MI or stroke, however, significantly increased major bleeding events in Korean patients with MI and diabetes undergoing PCI.</P></▼2>
조계만(Kye Man Cho),안병용(Byung Yong Ahn),서원택(Weon Taek Seo) 한국식품과학회 2008 한국식품과학회지 Vol.40 No.6
한방발효음료를 제조하기 위하여 한방감주의 젖산발효를 유도하였다. 이를 위해 각종 시료로부터 다양한 젖산균을 순수 분리하여 발효적성을 검토한 결과 최적균주로서 LAB19 균주를 선별하였다. LAB19 균주는 곶감으로부터 분리하였으며 생리 화학적 특성 및 16S rRNA 염기서열 분석을 통하여 Leuconostoc mesenteroides로 동정되었다. 한방감주에 종배양한 LAB19 균주를 2.5%(v/v) 접종하고 25oC에서 60시간 발효시켰을 때, 한방감주는 141.3 g/L의 환원당과 5.33 g/L의 유기산, 그리고 1.19 g/L의 가용성 페놀을 함유하고 있었다. 당과 유기산 구성을 살펴보면 당의 약 90%는 맥아당이었으며, 유기산의 58%는 젖산이었다. 수용성 phenolics 성분 등에 기인하는 라디칼 소거 활성은 L-ascorbic acid의 92.4% 보다 낮은 76.6-75.7% 범위를 유지하고 있었다. In this study, the characteristics of the lactic fermentation of gamju manufactured using a medicinal herb decoction were assessed. A bacterial strain, LAB19, which is used for the induction of lactic fermentation into gamju, was isolated from dried persimmon and identified as Leuconostoc mesenteroides on the basis of morphological, physiological, and chemotaxonomical features, and 16S rRNA sequencing analysis. After 60 hours of lactic fermentation with Leuconostoc mesenteroides LAB19 at 25℃, the gamju was determined to contain 141.3 g/L of reducing sugar, 5.33 g/L of acids, and 1.19 g/L of soluble phenolics. Approximately 90% of reducing sugar and 58% of acids were maltose and lactic acid, respectively. Free radical scavenging activities were retained at levels between 76.6 to 75.7% during the lactic fermentation of gamju.
Lim Hyun Jae,Kim Song Soo,Ahn Kye Taek,Kim Kun Ho,Kim Jin Hwan 대한영상의학회 2021 대한영상의학회지 Vol.82 No.6
Cardiac tumors are rare diseases with various imaging findings. However, differentiating cardiac tumors based on imaging findings is challenging because of similarities in imaging features. We present two cases of cardiac tumors, including primary cardiac lymphoma and cardiac metastasis, in which the differential diagnosis was difficult.
순환기 : 심한 좌심방 석회화와 반복적인 좌심방 혈전 및 액와부 혈종
성석우 ( Seok Woo Seong ),안계택 ( Kye Taek Ahn ),김혜진 ( Hye Jin Kim ),천신혜 ( Shin Hye Cheon ),진선아 ( Seon Ah Jin ),신성균 ( Sung Kyun Sin ),정진옥 ( Jin Ok Jeong ) 대한내과학회 2012 대한내과학회지 Vol.82 No.6
Left atrial wall calcification is frequently observed in patients with rheumatic valvular heart disease. However, massive left atrial wall calcification, so called porcelain or coconut atrium, with left atrium thrombi is very rare. Here, we describe the case of a 67-year-old male patient with porcelain atrium, recurrent left atrial thrombi, and a spontaneous axillary hematoma after mitral valve replacement and surgical thrombectomy due to rheumatic valvular heart disease. The patient underwent two valvular surgeries 20 years prior; therefore, we determined not to perform additional surgeries because of a high risk of morbidity, mortality, and the recurrence of atrial thrombi. The patient has been maintained on daily warfarin as an anti-thrombic therapy for more than 5 years without major embolic complications.
Jeong, Jin-Ok,Kim, Jeong-Hee,Ahn, Kye-Taek,Park, Hyung Seo,Jang, Won Il,Park, Jae-Hyeong,Lee, Jae-Hwan,Choi, Si Wan,Kim, Jin Man,Seong, In-Whan The Korean Society of Cardiology 2010 Korean Circulation Journal Vol.40 No.11
<P><B>Background and Objectives</B></P><P>Vascular smooth muscle cell (VSMC) proliferation is responsible for the restenosis of previously inserted coronary stents. Angiotensin II (Ang II) is known to regulate VSMC proliferation. LKB1, a serine/threonine kinase, interacts with the p53 pathway and acts as a tumor suppressor.</P><P><B>Materials and Methods</B></P><P>We assessed the association of Ang II and the expression of LKB1 in primary cultured murine VSMCs and neointima of the Sprague Dawley rat carotid artery injury model. We created carotid balloon injuries and harvested the injured carotid arteries 14 days after the procedure.</P><P><B>Results</B></P><P>Ang II increased LKB1 expression in a time-dependent manner and peaked at an Ang II concentration of 10<SUP>-7</SUP> mole/L in VSMCs. In the animal experiment, neointima was markedly increased after balloon injury compared to the control group. Immunohistochemical studies showed that LKB1 expression increased according to neointima thickness. Ang II augmented LKB1 expression after the injury. Western blot analysis of LKB1 with carotid artery lysate revealed the same pattern as LKB1 immunohistochemistry. Increased LKB1 expression started at 5 days after the balloon injury, and peaked at 14 days after the injury. Although LKB1 expression was increased after the injury, LKB1 kinase activity was not increased. Ang II or balloon-injury increased the expression of LKB1 although the LKB1 activity was reduced.</P><P><B>Conclusion</B></P><P>Ang II increased LKB1 expression in VSMCs and neointima. These findings were not kinase dependant.</P>
Haque, Md. Azizul,Seo, Weon Taek,Hwang, Chung Eun,Lee, Hee Yul,Ahn, Min Ju,Cho, Kye Man The Korean Society for Applied Biological Chemistr 2015 Applied Biological Chemistry (Appl Biol Chem) Vol.58 No.3
The yeast-26S rRNA libraries were constructed from two different fermented soybean foods, doenjang and kanjang. A total of 42 clones, containing the partial 26S rRNA sequences, 0.6 kb in length, were sequenced and subjected to an online similarity search. All doenjang yeast (DY) clones only appeared in the Saccharomycotina class. The 21 clones from the doenjang library were classified into five groups: Debaryomyces hansenii (DY I, 76.0 %), Zygosaccharomyces pseudorouxii (DY II, 9.6 %), Candida versatilis (DY III, 4.8 %), Candida etchellsii (DY IV, 4.8 %), and Debaryomyces castellii (DY V, 4.8 %). The 21 kanjang yeast (KY) clones were affiliated with the Saccharomycotina (52.4 %), Urediniomycetes (19.0 %), Ustilaginomycetes (23.8 %), and Hymenomycetes (4.8 %) classes and divided into six groups: D. hansenii (KY I, 38.0 %), Sterigmatomyces halophilus (KY II, 19.0 %), Malassezia restricta (KY III, 23.8 %), Cryptococcus magnus (KY V, 4.8 %), and Pichia triangularis (KY VI, 9.6 %). Yeast belonging to the Saccharomycotina class was predominant (76.2 %) in fermented soybean foods, doenjang and kanjang. These findings are of fundamental value for understanding the complexity of two different fermented soybean foods.
Immunoglobulin G4-Related Myocarditis with Eosinophilic Infiltration: A Case Report
Hyun Woo,Song Soo Kim,Kye Taek Ahn,Seon Ah Jin,Hyeyoung Kwon 대한영상의학회 2023 대한영상의학회지 Vol.84 No.3
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a fibroinflammatory disorder that can involve any organ system; however, myocarditis is extremely rare. A 52-year-old male with dyspnea and chest discomfort underwent cardiac MRI that revealed edema and nodular, patchy, mesocardial and subendoardial delayed enhancement of left ventricle, suggesting myocarditis. Laboratory findings revealed elevated serum IgG4 and eosinophilia. Cardiac biopsy confirmed eosinophilic myocarditis with IgG4-positive cells. Here, we present an unusual case of IgG4-RD manifesting as eosinophilic myocarditis.
갑상샘항진증에서 우심부전을 동반한 중증 삼첨판 폐쇄부전증
장원일 ( Won Il Jang ),김은미 ( Eun Mi Kim ),안계택 ( Kye Taek Ahn ),박재형 ( Jae Hyeong Park ),최시완 ( Si Wan Choi ) 대한내과학회 2007 대한내과학회지 Vol.73 No.2
Left-sided heart failure can be complicated in the patient suffering with thyrotoxicosis; however, predominantly right heart failure in thyrotoxic patients is a rare condition. We present here a case of reversible right-heart failure with severe tricuspid regurgitation associated with thyrotoxicosis. A 71-year-old woman was admitted to the hospital because of a 10-day history of shortness of breath and indigestion. On echocardiography, there was a normal-sized left ventricle with preserved systolic and diastolic function. However, the right atrium and ventricle were dilated, and there was incomplete systolic coaptation of the tricuspid leaflets, resulted in severe tricuspid regurgitation. The maximal velocity of tricuspid regurgitation was 3.7 m/sec and the estimated pressure gradient between the right two chambers was 55 mmHg. After treatment that included diuretics and antithyroid drug (methimazole), the symptoms of right heart failure resolved. Four weeks later, a second echocardiogram was obtained revealing a normalized right atrium and ventricle, trivial tricuspid regurgitation and the resting pulmonary hypertension had disappeared.(Korean J Med 73:206-209, 2007)