1.Risk Factors for Infertility in Korean Women
Juyeon LEE ; Chang-Woo CHOO ; Kyoung Yong MOON ; Sang Woo LYU ; Hoon KIM ; Joong Yeup LEE ; Jung Ryeol LEE ; Byung Chul JEE ; Kyungjoo HWANG ; Seok Hyun KIM ; Sue K. PARK
Journal of Korean Medical Science 2024;39(10):e85-
Background:
Female infertility is a crucial problem with significant implications for individuals and society. In this study, we explore risk factors for infertility in Korean women.
Methods:
A total of 986 female patients who visited six major infertility clinics in Korea were recruited from April to December 2014. Fertile age-matched controls were selected from two nationwide survey study participants. Conditional logistic regression after age-matching was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) of each risk factor for infertility.
Results:
Women with a body mass index (BMI) < 18.5 kg/m2 had 1.35 times higher odds of infertility (OR, 1.35; 95% CI, 1.03–1.77), while those with a BMI ≥ 25.0 kg/m2 had even higher odds (OR, 2.06; 95% CI, 1.61–2.64) compared to women with a normal BMI (18.5 kg/m2 ≤ BMI < 25 kg/m 2 ). Ever-smokers exhibited 4.94 times higher odds of infertility compared to never-smokers (95% CI, 3.45–8.85). Concerning alcohol consumption, women who consumed ≥ 7 glasses at a time showed 3.13 times significantly higher odds of infertility than those who consumed ≤ 4 glasses at a time (95% CI, 1.79–5.48). Lastly, women with thyroid disease demonstrated 1.44 times higher odds of infertility compared to women without thyroid disease (95% CI, 1.00–2.08).
Conclusion
Female infertility in Korea was associated with underweight, obesity, smoking, alcohol consumption, and thyroid disease.
2.2021 Korean Society of Myocardial Infarction Expert Consensus Document on Revascularization for Acute Myocardial Infarction
Kiyuk CHANG ; Youngkeun AHN ; Sungmin LIM ; Jeong Hoon YANG ; Kwan Yong LEE ; Eun Ho CHOO ; Hyun Kuk KIM ; Chang-Wook NAM ; Weon KIM ; Jin-Yong HWANG ; Seung-Woon RHA ; Hyo-Soo KIM ; Myeong-Chan CHO ; Yangsoo JANG ; Myung Ho JEONG ; The Task Force on Expert Consensus Document of the Korean Society of Myocardial Infarction (KSMI)
Korean Circulation Journal 2021;51(4):289-307
Acute myocardial infarction (AMI) is a fatal manifestation of ischemic heart disease and remains a major public health concern worldwide despite advances in its diagnosis and management. The characteristics of patients with AMI, as well as its disease patterns,have gradually changed over time in Korea, and the outcomes of revascularization have improved dramatically. Several characteristics associated with the revascularization of Korean patients differ from those of patients in other countries. The sophisticated state of AMI revascularization in Korea has led to the need for a Korean expert consensus. The Task Force on Expert Consensus Document of the Korean Society of Myocardial Infarction has comprehensively reviewed the outcomes of large clinical trials and current practical guidelines, as well as studies on Korean patients with AMI. Based on these comprehensive reviews, the members of the task force summarize the major guidelines and recent publications, and propose an expert consensus for revascularization in patients with AMI.
3.2021 Korean Society of Myocardial Infarction Expert Consensus Document on Revascularization for Acute Myocardial Infarction
Kiyuk CHANG ; Youngkeun AHN ; Sungmin LIM ; Jeong Hoon YANG ; Kwan Yong LEE ; Eun Ho CHOO ; Hyun Kuk KIM ; Chang-Wook NAM ; Weon KIM ; Jin-Yong HWANG ; Seung-Woon RHA ; Hyo-Soo KIM ; Myeong-Chan CHO ; Yangsoo JANG ; Myung Ho JEONG ; The Task Force on Expert Consensus Document of the Korean Society of Myocardial Infarction (KSMI)
Korean Circulation Journal 2021;51(4):289-307
Acute myocardial infarction (AMI) is a fatal manifestation of ischemic heart disease and remains a major public health concern worldwide despite advances in its diagnosis and management. The characteristics of patients with AMI, as well as its disease patterns,have gradually changed over time in Korea, and the outcomes of revascularization have improved dramatically. Several characteristics associated with the revascularization of Korean patients differ from those of patients in other countries. The sophisticated state of AMI revascularization in Korea has led to the need for a Korean expert consensus. The Task Force on Expert Consensus Document of the Korean Society of Myocardial Infarction has comprehensively reviewed the outcomes of large clinical trials and current practical guidelines, as well as studies on Korean patients with AMI. Based on these comprehensive reviews, the members of the task force summarize the major guidelines and recent publications, and propose an expert consensus for revascularization in patients with AMI.
4.2020 Korean Society of Myocardial Infarction Expert Consensus Document on Pharmacotherapy for Acute Myocardial Infarction
Hyun Kuk KIM ; Youngkeun AHN ; Kiyuk CHANG ; Young-Hoon JEONG ; Joo-Yong HAHN ; Eun Ho CHOO ; Min Chul KIM ; Hyo-Soo KIM ; Weon KIM ; Myeong-Chan CHO ; Yangsoo JANG ; Chong Jin KIM ; Myung Ho JEONG ; Shung Chull CHAE ;
Korean Circulation Journal 2020;50(10):845-866
Clinical practice guidelines published by the European Society of Cardiology and the American College of Cardiology/American Heart Association summarize the available evidence and provide recommendations for health professionals to enable appropriate clinical decisions and improve clinical outcomes for patients with acute myocardial infarction (AMI). However, most current guidelines are based on studies in non-Asian populations in the pre-percutaneous coronary intervention (PCI) era. The Korea Acute Myocardial Infarction Registry is the first nationwide registry to document many aspects of AMI from baseline characteristics to treatment strategies. There are well-organized ongoing and published randomized control trials especially for antiplatelet therapy among Korean patients with AMI. Here, members of the Task Force of the Korean Society of Myocardial Infarction review recent published studies during the current PCI era, and have summarized the expert consensus for the pharmacotherapy of AMI.
5.A clinical pilot study of jawbone mineral density measured by the newly developed dual-energy cone-beam computed tomography method compared to calibrated multislice computed tomography
Hyun Jeong KIM ; Ji Eun KIM ; Jiyeon CHOO ; Jeonghee MIN ; Sungho CHANG ; Sang Chul LEE ; Woong Beom PYUN ; Kwang Suk SEO ; Myong Hwan KARM ; Ki Tae KOO ; In Chul RHYU ; Hoon MYOUNG ; Min Suk HEO
Imaging Science in Dentistry 2019;49(4):295-299
PURPOSE: This clinical pilot study was performed to determine the effectiveness of dual-energy cone-beam computed tomography (DE-CBCT) in measuring bone mineral density (BMD).MATERIALS AND METHODS: The BMD values obtained using DE-CBCT were compared to those obtained using calibrated multislice computed tomography (MSCT). After BMD calibration with specially designed phantoms, both DE-CBCT and MSCT scanning were performed in 15 adult dental patients. Three-dimensional (3D) Digital Imaging and Communications in Medicine data were imported into a dental software program, and the defined regions of interest (ROIs) on the 3-dimensional surface-rendered images were identified. The automatically-measured BMD values of the ROIs (g/cm³), the differences in the measured BMD values of the matched ROIs obtained by DE-CBCT and MSCT 3D images, and the correlation between the BMD values obtained by the 2 devices were statistically analyzed.RESULTS: The mean BMD values of the ROIs for the 15 patients as assessed using DE-CBCT and MSCT were 1.09±0.07 g/cm³ and 1.13±0.08 g/cm³, respectively. The mean of the differences between the BMD values of the matched ROIs as assessed using DE-CBCT and calibrated MSCT images was 0.04±0.02 g/cm³. The Pearson correlation coefficient between the BMD values of DE-CBCT and MSCT images was 0.982 (r=0.982, P<0.001).CONCLUSION: The newly developed DE-CBCT technique could be used to measure jaw BMD in dentistry and may soon replace MSCT, which is expensive and requires special facilities.
Adult
;
Bone Density
;
Calibration
;
Cone-Beam Computed Tomography
;
Dentistry
;
Humans
;
Jaw
;
Methods
;
Miners
;
Multidetector Computed Tomography
;
Pilot Projects
6.Efficacy of dual antiplatelet therapy as premedication before diagnostic cerebral digital subtraction angiography
Yoon Hee CHOO ; Young Jin JUNG ; Chul Hoon CHANG ; Jong Hoon KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2019;21(3):131-137
OBJECTIVE: Several studies have reported that periprocedural dual antiplatelet therapy lowers the incidence of thromboembolic complications (TEC) associated with coiling of unruptured aneurysms. We hypothesized that preprocedural administration of dual antiplatelet agents (aspirin and cilostazol) for 7days may reduce the risk of complications associated with diagnostic cerebral digital subtraction angiography (DSA).METHODS: We retrospectively reviewed the records of patients who underwent diagnostic cerebral DSA between September 2015 and April 2018. Of the 419 patients included (149 men, 270 women, mean age 58.5 years), 221 (72 men, 149 women, mean age 57.8 years) who underwent cerebral DSA between September 2015 and June 2016 were not premedicated with antiplatelet therapy. The remaining 198 (77 men, 121 women, mean age 59.4 years) who underwent cerebral DSA between July 2016 and April 2018 were premedicated with dual antiplatelet therapy (aspirin and cilostazol). We defined ischemic stroke as a cerebral DSA-induced complication identified on magnetic resonance imaging (MRI) among patients with neurological symptoms.RESULTS: Of the 221 patients who did not receive antiplatelet therapy, 210 (95.0%) showed no neurological symptoms; however, 11 (5.0%) developed neurological symptoms with MRI-proven ischemic stroke, which represents a TEC. Of the 198 patients who received dual antiplatelet therapy, 196 patients (99.0%) showed no evidence of TEC. The remaining 2 (1.0%) developed diplopia and motor weakness each, and MRI confirmed acute ischemic stroke (p=0.019).CONCLUSIONS: The use of dual antiplatelet agents (aspirin and cilostazol) for 7 days before DSA may reduce the risk of cerebral DSA-induced TEC.
Aneurysm
;
Angiography, Digital Subtraction
;
Diplopia
;
Female
;
Humans
;
Incidence
;
Magnetic Resonance Imaging
;
Male
;
Platelet Aggregation Inhibitors
;
Premedication
;
Retrospective Studies
;
Stroke
;
Thromboembolism
7.Effect of Pioglitazone in Combination with Moderate Dose Statin on Atherosclerotic Inflammation: Randomized Controlled Clinical Trial Using Serial FDG-PET/CT
Eun Ho CHOO ; Eun Ji HAN ; Chan Joon KIM ; Sung Hoon KIM ; Joo Hyun O ; Kiyuk CHANG ; Ki Bae SEUNG
Korean Circulation Journal 2018;48(7):591-601
BACKGROUND AND OBJECTIVES:
Non-statin therapy plus lower intensity statin might be an alternative in patients with coronary artery disease (CAD). A recent data suggested an anti-inflammatory therapy can reduce recurrent cardiovascular events and pioglitazone is also an intriguing inflammatory-modulating agent. However, limited data exist on whether pioglitazone on top of statins further attenuates plaque inflammation.
METHODS:
Statin-naïve patients with stable CAD and carotid plaques of ≥3 mm were randomly prescribed moderate dose atorvastatin (20 mg/day), or moderate dose atorvastatin plus pioglitazone (30 mg/day) for 3 months. The primary endpoint was the change in the arterial inflammation of the carotid artery measured by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) during 3 months.
RESULTS:
Of the 41 randomized patients, 33 underwent an evaluation by fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT; 17 atorvastatin plus pioglitazone and 16 atorvastatin patients). The addition of pioglitazone significantly improved the insulin sensitivity and increased the high-density lipoprotein cholesterol after 3 months. Although a reduction in the (FDG) uptake by pioglitazone on top of atorvastatin in carotid arteries with plaque showed marginally statistical significance in the entire patient group (atorvastatin plus pioglitazone; −0.10±0.07 and atorvastatin −0.06±0.04, p=0.058), pioglitazone showed a further reduction of the fluorodeoxyglucose (FDG) uptake among patients who had a baseline FDG uptake above the median (atorvastatin plus pioglitazone; −0.14±0.04 and atorvastatin −0.03±0.03, p < 0.001).
CONCLUSIONS
Pioglitazone demonstrated marginally significant anti-inflammatory effects in addition to moderate dose atorvastatin. This may have been due to the lack of power of the study. However, pioglitazone may have an anti-inflammatory effect in those patients with high plaque inflammation (Trial registry at ClinicalTrials.gov, NCT01341730).
8.Effect of Pioglitazone in Combination with Moderate Dose Statin on Atherosclerotic Inflammation: Randomized Controlled Clinical Trial Using Serial FDG-PET/CT
Eun Ho CHOO ; Eun Ji HAN ; Chan Joon KIM ; Sung Hoon KIM ; Joo Hyun O ; Kiyuk CHANG ; Ki Bae SEUNG
Korean Circulation Journal 2018;48(7):591-601
BACKGROUND AND OBJECTIVES: Non-statin therapy plus lower intensity statin might be an alternative in patients with coronary artery disease (CAD). A recent data suggested an anti-inflammatory therapy can reduce recurrent cardiovascular events and pioglitazone is also an intriguing inflammatory-modulating agent. However, limited data exist on whether pioglitazone on top of statins further attenuates plaque inflammation. METHODS: Statin-naïve patients with stable CAD and carotid plaques of ≥3 mm were randomly prescribed moderate dose atorvastatin (20 mg/day), or moderate dose atorvastatin plus pioglitazone (30 mg/day) for 3 months. The primary endpoint was the change in the arterial inflammation of the carotid artery measured by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) during 3 months. RESULTS: Of the 41 randomized patients, 33 underwent an evaluation by fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT; 17 atorvastatin plus pioglitazone and 16 atorvastatin patients). The addition of pioglitazone significantly improved the insulin sensitivity and increased the high-density lipoprotein cholesterol after 3 months. Although a reduction in the (FDG) uptake by pioglitazone on top of atorvastatin in carotid arteries with plaque showed marginally statistical significance in the entire patient group (atorvastatin plus pioglitazone; −0.10±0.07 and atorvastatin −0.06±0.04, p=0.058), pioglitazone showed a further reduction of the fluorodeoxyglucose (FDG) uptake among patients who had a baseline FDG uptake above the median (atorvastatin plus pioglitazone; −0.14±0.04 and atorvastatin −0.03±0.03, p < 0.001). CONCLUSIONS: Pioglitazone demonstrated marginally significant anti-inflammatory effects in addition to moderate dose atorvastatin. This may have been due to the lack of power of the study. However, pioglitazone may have an anti-inflammatory effect in those patients with high plaque inflammation (Trial registry at ClinicalTrials.gov, NCT01341730).
Arteritis
;
Atherosclerosis
;
Atorvastatin Calcium
;
Carotid Arteries
;
Carotid Stenosis
;
Cholesterol
;
Coronary Artery Disease
;
Electrons
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Inflammation
;
Insulin Resistance
;
Lipoproteins
;
PPAR gamma
9.Effect of Cervical Interlaminar Epidural Steroid Injection: Analysis According to the Neck Pain Patterns and MRI Findings.
Ji Won CHOI ; Hyung Woo LIM ; Jin Young LEE ; Won Il LEE ; Eun Kyung LEE ; Choo Hoon CHANG ; Jae Young YANG ; Woo Seog SIM
The Korean Journal of Pain 2016;29(2):96-102
BACKGROUND: It is widely accepted that cervical interlaminar steroid injection (CIESI) is more effective in treating radicular pain than axial neck pain, but without direct comparison. And the differences of effect after CIESI according to MRI findings are inconsistent. In this retrospective study, we evaluated the therapeutic response of CIESI according to pain sites, durations, MRI findings, and other predictive factors altogether, unlike previous studies, which evaluated them separately. METHODS: The medical records of 128 patients who received fluoroscopy guided CIESI were analyzed. We evaluated the therapeutic response (more than a 50% reduction on the visual analog scale [VAS] by their second visit) after CIESI by (1) pain site; neck pain without radicular pain/radicular pain with or without neck pain, (2) pain duration; acute/chronic (more than 6 month), and (3) findings of MRI; herniated intervertebral disc (HIVD)/spinal stenosis, respectively and altogether. RESULTS: Eighty-eight patients (68%) responded to CIESI, and there were no significant differences in demographic data, initial VAS score, or laboratory findings. And there were no significant differences in the response rate relating to pain site, pain duration, or MRI findings, respectively. In additional analysis, acute radicular pain with HIVD patients showed significantly better response than chronic neck pain with spinal stenosis (P = 0.04). CONCLUSIONS: We cannot find any sole predictive factor of therapeutic response to the CIESI. But the patients having acute radicular pain with HIVD showed the best response, and those having other chronic neck pain showed the worst response to CIESI.
Constriction, Pathologic
;
Fluoroscopy
;
Humans
;
Intervertebral Disc
;
Magnetic Resonance Imaging*
;
Medical Records
;
Neck Pain*
;
Neck*
;
Retrospective Studies
;
Spinal Stenosis
;
Visual Analog Scale
10.Aristolochia manshuriensis Kom ethyl acetate extract protects against high-fat diet-induced non-alcoholic steatohepatitis by regulating kinase phosphorylation in mouse.
Dong Hoon KWAK ; Ji Su KIM ; Kyu Tae CHANG ; Young Kug CHOO
Journal of Veterinary Science 2016;17(3):279-287
Aristolochia manshuriensis Kom (AMK) is an herb used as a traditional medicine; however, it causes side effects such as nephrotoxicity and carcinogenicity. Nevertheless, AMK can be applied in specific ways medicinally, including via ingestion of low doses for short periods of time. Non-alcoholic steatohepatitis (NASH) induced the hepatocyte injury and inflammation. The protective effects of AMK against NASH are unclear; therefore, in this study, the protective effects of AMK ethyl acetate extract were investigated in a high-fat diet (HFD)-induced NASH model. We found decreased hepatic steatosis and inflammation, as well as increased levels of lipoproteins during AMK extract treatment. We also observed decreased hepatic lipid peroxidation and triglycerides, as well as suppressed hepatic expression of lipogenic genes in extract-treated livers. Treatment with extract decreased the activation of c-jun N-terminal kinase 1/2 (JNK1/2) and increased the phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2). These results demonstrate that the protective effect of the extract against HFD-induced NASH occurred via reductions in reactive oxygen species production, inflammation suppression, and apoptosis related to the suppression of JNK1/2 activation and increased ERK1/2 phosphorylation. Taken together, these results indicate that that ethyl acetate extract of AMK has potential therapeutic effects in the HFD-induced NASH mouse model.
Animals
;
Apoptosis
;
Aristolochia*
;
Diet, High-Fat
;
Eating
;
Fatty Liver*
;
Hepatocytes
;
Inflammation
;
JNK Mitogen-Activated Protein Kinases
;
Lipid Peroxidation
;
Lipoproteins
;
Liver
;
Medicine, Traditional
;
Mice*
;
Non-alcoholic Fatty Liver Disease
;
Phosphorylation*
;
Phosphotransferases*
;
Reactive Oxygen Species
;
Therapeutic Uses
;
Triglycerides

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