8 results on '"Chun KH"'
Search Results
2. Author Correction: Ablation of the deubiquitinase USP15 ameliorates nonalcoholic fatty liver disease and nonalcoholic steatohepatitis.
- Author
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Baek JH, Kim MS, Jung HR, Hwang MS, Lee CH, Han DH, Lee YH, Yi EC, Im SS, Hwang I, Kim K, Chung JY, and Chun KH
- Published
- 2024
- Full Text
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3. Prognosis of Patients With Ischemic Stroke With Prior Anticoagulant Therapy: Direct Oral Anticoagulants Versus Warfarin.
- Author
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Chun KH, Lee H, Hong JH, and Seo KD
- Subjects
- Humans, Male, Female, Aged, Prognosis, Administration, Oral, Middle Aged, Aged, 80 and over, Pyridones adverse effects, Pyridones therapeutic use, Pyridones administration & dosage, Retrospective Studies, Pyrazoles therapeutic use, Pyrazoles adverse effects, Dabigatran therapeutic use, Dabigatran adverse effects, Dabigatran administration & dosage, Rivaroxaban therapeutic use, Rivaroxaban adverse effects, Rivaroxaban administration & dosage, Risk Factors, Risk Assessment, Taiwan epidemiology, Pyridines, Thiazoles, Warfarin therapeutic use, Warfarin adverse effects, Ischemic Stroke prevention & control, Ischemic Stroke mortality, Ischemic Stroke diagnosis, Anticoagulants adverse effects, Anticoagulants therapeutic use, Anticoagulants administration & dosage, Atrial Fibrillation drug therapy, Atrial Fibrillation complications, Atrial Fibrillation mortality, Factor Xa Inhibitors therapeutic use, Factor Xa Inhibitors adverse effects, Factor Xa Inhibitors administration & dosage
- Abstract
Background: Direct oral anticoagulants (DOACs) have been the drug of choice for preventing ischemic stroke in patients with atrial fibrillation since 2014. In previous studies, the stroke risk while taking warfarin was 2 per 100 patient-years and 1.5% per year while taking DOACs. We hypothesized that even if ischemic stroke occurred during anticoagulation therapy with DOACs, the prognosis was likely to be better than that with warfarin., Methods and Results: Data from 2002 to 2019, sourced from a nationwide claims database, were used to identify atrial fibrillation patients using International Classification of Diseases codes. Patients who experienced an ischemic stroke during anticoagulation were categorized by the drugs used (warfarin, dabigatran, apixaban, rivaroxaban, and edoxaban). The primary outcome was mortality within 3 months and 1 year after the ischemic stroke. Among the 9578 patients with ischemic stroke during anticoagulation, 3343 received warfarin, and 6235 received DOACs (965 dabigatran, 2320 apixaban, 1702 rivaroxaban, 1248 edoxaban). The DOACs group demonstrated lower risks of 3-month (adjusted hazard ratio [HR], 0.550, [95% CI, 0.473-0.639]; P <0.0001) and 1-year mortality (adjusted HR, 0.596 [95% CI, 0.536-0.663]; P <0.0001) than the warfarin group. Apixaban and edoxaban within the DOAC group exhibited particularly reduced 1-year mortality risk compared with other DOACs ( P <0.0001)., Conclusions: Our study confirmed that DOACs have a better prognosis than warfarin after ischemic stroke. The apixaban and edoxaban groups had a lower risk of death after ischemic stroke than the other DOAC groups.
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- 2024
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4. Blood pressure and heart failure: focused on treatment.
- Author
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Chun KH and Kang SM
- Abstract
Heart failure (HF) remains a significant global health burden, and hypertension is known to be the primary contributor to its development. Although aggressive hypertension treatment can prevent heart changes in at-risk patients, determining the optimal blood pressure (BP) targets in cases diagnosed with HF is challenging owing to insufficient evidence. Notably, hypertension is more strongly associated with HF with preserved ejection fraction than with HF with reduced ejection fraction. Patients with acute hypertensive HF exhibit sudden symptoms of acute HF, especially those manifested with severely high BP; however, no specific vasodilator therapy has proven beneficial for this type of acute HF. Since the majority of medications used to treat HF contribute to lowering BP, and BP remains one of the most important hemodynamic markers, targeted BP management is very concerned in treatment strategies. However, no concrete guidelines exist, prompting a trend towards optimizing therapies to within tolerable ranges, rather than setting explicit BP goals. This review discusses the connection between BP and HF, explores its pathophysiology through clinical studies, and addresses its clinical significance and treatment targets., (© 2024. The Author(s).)
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- 2024
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5. Heart Failure Statistics 2024 Update: A Report From the Korean Society of Heart Failure.
- Author
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Lee CJ, Lee H, Yoon M, Chun KH, Kong MG, Jung MH, Kim IC, Cho JY, Kang J, Park JJ, Kim HC, Choi DJ, Lee J, and Kang SM
- Abstract
Background and Objectives: The number of people with heart failure (HF) is increasing worldwide, and the social burden is increasing as HF has high mortality and morbidity. We aimed to provide updated trends on the epidemiology of HF in Korea to shape future social measures against HF., Methods: We used the National Health Information Database of the National Health Insurance Service to determine the prevalence, incidence, hospitalization rate, mortality rate, comorbidities, in-hospital mortality, and healthcare cost of patients with HF from 2002 to 2020 in Korea., Results: The prevalence of HF in the total Korean population rose from 0.77% in 2002 to 2.58% (1,326,886 people) in 2020. Although the age-standardized incidence of HF decreased over the past 18 years, the age-standardized prevalence increased. In 2020, the hospitalization rate for any cause in patients with HF was 1,166 per 100,000 persons, with a steady increase from 2002. In 2002, the HF mortality was 3.0 per 100,000 persons, which rose to 15.6 per 100,000 persons in 2020. While hospitalization rates and in-hospital mortality for patients with HF increased, the mortality rate for patients with HF did not (5.8% in 2020), and the one-year survival rate from the first diagnosis of HF improved. The total healthcare costs for patients with HF were approximately $2.4 billion in 2020, a 16-fold increase over the $0.15 billion in 2002., Conclusions: The study's results underscore the growing socioeconomic burden of HF in Korea, driven by an aging population and increasing HF prevalence., Competing Interests: Conflict of Interest: The authors have no financial conflicts of interest., (© 2024. Korean Society of Heart Failure.)
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- 2024
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6. Non-Targeted Metabolomics Investigation of a Sub-Chronic Variable Stress Model Unveils Sex-Dependent Metabolic Differences Induced by Stress.
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Kang S, Kim W, Nam J, Li K, Kang Y, Bae B, Chun KH, Chung C, and Lee J
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- Humans, Male, Female, Mice, Animals, Pituitary-Adrenal System metabolism, Metabolomics, Brain metabolism, Corticosterone, Stress, Psychological metabolism, Sex Characteristics, Hypothalamo-Hypophyseal System metabolism
- Abstract
Depression is twice as prevalent in women as in men, however, most preclinical studies of depression have used male rodent models. This study aimed to examine how stress affects metabolic profiles depending on sex using a rodent depression model: sub-chronic variable stress (SCVS). The SCVS model of male and female mice was established in discovery and validation sets. The stress-induced behavioral phenotypic changes were similar in both sexes, however, the metabolic profiles of female plasma and brain became substantially different after stress, whereas those of males did not. Four stress-differential plasma metabolites-β-hydroxybutyric acid (BHB), L-serine, glycerol, and myo-inositol-could yield biomarker panels with excellent performance to discern the stressed individuals only for females. Disturbances in BHB, glucose, 1,5-anhydrosorbitol, lactic acid, and several fatty acids in the plasma of stressed females implied a systemic metabolic shift to β-oxidation in females. The plasma levels of BHB and corticosterone only in stressed females were observed not only in SCVS but also in an acute stress model. These results collectively suggest a sex difference in the metabolic responses by stress, possibly involving the energy metabolism shift to β-oxidation and the HPA axis dysregulation in females.
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- 2024
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7. Metformin treatment is associated with improved survival in diabetic patients hospitalized with acute heart failure: A prospective observational study using the Korean acute heart failure registry data.
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Chun KH, Oh J, Lee CJ, Park JJ, Lee SE, Kim MS, Cho HJ, Choi JO, Lee HY, Hwang KK, Kim KH, Yoo BS, Choi DJ, Baek SH, Jeon ES, Kim JJ, Cho MC, Chae SC, Oh BH, and Kang SM
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- Aged, Female, Humans, Male, Hospitalization, Republic of Korea epidemiology, Routinely Collected Health Data, Stroke Volume, Ventricular Function, Left, Prospective Studies, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 epidemiology, Heart Failure drug therapy, Heart Failure epidemiology, Heart Failure etiology, Metformin therapeutic use
- Abstract
Aims: Although the hypothesis that metformin is beneficial for patients with diabetes and heart failure (HF) has been steadily raised, there is limited data on metformin use in patients with acute HF. We analyzed the association of metformin on all-cause mortality in hospitalized patients with type 2 diabetes and acute HF., Methods: The Korean Acute Heart Failure registry prospectively enrolled patients hospitalized for acute HF from 2011 to 2014. Among this cohort, we analyzed patients with diabetes with baseline estimated glomerular filtration rate (eGFR) of 30 ml/min/1.73 m
2 or more. We analyzed the all-cause mortality and re-hospitalization for HF within 1 year after discharge. Inverse probability treatment weighting method was used to adjust baseline differences on metformin treatment., Results: The study analyzed data from 1,309 patients with HF and diabetes (mean age 69 years, 56 % male). Among them, 613 (47 %) patients were on metformin at admission. During the median follow-up period of 11 months, 132 (19 %) and 74 (12 %) patients not receiving and receiving metformin treatment died, respectively. The mortality rate was lower in metformin users than in non-users (hazard ratio 0.616 [0.464-0.819] P<0.001). After adjustment, metformin was significantly associated with a lower risk for the mortality (hazard ratio 0.677 [0.495-0.928] P=0.015). In subgroup analyses, this association remains significant irrespective of baseline kidney function (eGFR <60 or ≥60 ml/min/1.73 m2 , P-for-interaction=0.176) or left ventricular ejection fraction (<40 %, 40-49 %, or ≥50 %, P-for-interaction=0.224)., Conclusions: Metformin treatment at the time of admission was associated with a lower risk for 1-year mortality in patients with diabetes, hospitalized for acute HF., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier Masson SAS.)- Published
- 2024
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8. Nocturnal systolic blood pressure dipping and progression of chronic kidney disease.
- Author
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Park CH, Jhee JH, Chun KH, Seo J, Lee CJ, Park SH, Hwang JT, Han SH, Kang SW, Park S, and Yoo TH
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- Humans, Blood Pressure physiology, Risk Factors, Blood Pressure Monitoring, Ambulatory, Circadian Rhythm physiology, Disease Progression, Renal Insufficiency, Chronic complications, Hypertension
- Abstract
The relationship between declining nocturnal blood pressure (BP) and adverse cardiovascular outcomes is well-recognized. However, the relationship between diurnal BP profile and the risk of chronic kidney disease (CKD) progression is unclear. Herein, we examined the association between nocturnal systolic SBP (SBP) dipping and CKD progression in 1061 participants at the Cardiovascular and Metabolic Disease Etiology Research Center-High Risk (CMERC-HI). The main exposure was diurnal systolic BP (SBP) profile and diurnal SBP difference ([nighttime SBP-daytime SBP] × 100/daytime SBP). The primary outcome was CKD progression, defined as a composite of ≥ a 50% decline in the estimated glomerular filtration rate from baseline or the initiation of kidney replacement therapy. During 4749 person-years of follow-up (median, 4.8 years), the composite outcome occurred in 380 (35.8%) participants. Compared to dippers, the hazard ratios (HRs) for the risk of adverse kidney outcomes were 1.02 (95% confidence interval [CI], 0.64-1.62), 1.30 (95% CI, 1.02-1.66), and 1.40 (95% CI, 1.03-1.90) for extreme dipper, non-dipper, and reverse dipper, respectively. In a continuous modeling, a 10% increase in diurnal SBP difference was associated with a 1.21-fold (95% CI, 1.07-1.37) higher risk of CKD progression. Thus, decreased nocturnal SBP decline was associated with adverse kidney outcomes in patients with CKD. Particularly, patients with non-dipping and reverse dipping patterns were at higher risk for CKD progression than those with a dipping pattern., (© 2023. The Author(s), under exclusive licence to The Japanese Society of Hypertension.)
- Published
- 2024
- Full Text
- View/download PDF
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