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Hong, Chang-Ki

Doo-Sik Kong, Chang-Ki Hong, Sang Duk Hong, Do-Hyun Nam, Jung-Il Lee, Ho Jun Seol, Jiwoong Oh, Dong Gyu Kim, Yong Hwy Kim
OBJECTIVE The endoscopic endonasal approach (EEA) and the transcranial approach (TCA) are good options for the treatment of tuberculum sellae (TS) meningiomas. The objective of this study was to identify the key anatomical features in TS meningiomas and compare the two surgical approaches. METHODS The authors retrospectively reviewed clinical data in 178 patients with TS meningiomas treated at 3 institutions between January 2010 and July 2016. Patients with tumors encasing the internal carotid artery or anterior cerebral artery or involving the anterior clinoid process or cavernous sinus were excluded...
May 18, 2018: Journal of Neurosurgery
Wen-Peng Zhao, Hong-Wei Wang, Jing Liu, Pan-Pan Tan, Xiang-Long Luo, Shi-Quan Zhu, Xue-Li Chen, Bian-Hua Zhou
The present study aimed to evaluate the effect of fluoride (F) on spermatogenesis in male rats. F- at 50 and 100 mg/L was administered for 70 days, after which the testicular and epididymis tissues were collected to observe the histopathological structure under a light microscope. The ultrastructure of the testis and sperm was also examined via transmission electron microscopy. The apoptosis of spermatogenic cells was measured through terminal deoxynucleotidyl transferase dUTP nick end labeling staining. The expression of proliferation factors, namely, proliferating cell nuclear antigen (PCNA) and Ki-67, in the testicular and epididymis tissues, were assayed through immunohistochemistry...
May 10, 2018: Biological Trace Element Research
Park Ju Ho, Jang Jun Sung, Kim Ki Cheon, Hong Jin Tae
BACKGROUND: Centella asiatica phytosome (CA phytosome) has potent antioxidant and anti-inflammatory properties. However, its anti-dermatitic effect has not yet been reported. PURPOSE: We investigated the effects of CA phytosome on inflammatory reponses by macrophages in an atopic dermatitis (AD) mouse model. STUDY DESIGN: The effects of CA phytosome on atopic dermatitis were examined by using phthalic anhydride (PA)-induced AD mouse model and RAW 264...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Jae-Won Shin, Sang-Hee Jo, Ki-Hyun Kim, Hee-Nam Song, Chang-Hee Kang, Nanthi Bolan, Jongki Hong
This study investigated the emission characteristics of glass particles resulting from smoking electronic cigarettes (ECs). First, the most suitable filter for the collection of glass particles was explored by examining the performance (reliability) of various types of filters. A polycarbonate filter was determined as the optimum choice to collect glass particles in EC aerosol. A cartomizer was filled with EC refill solution composed of an equal volume of propylene glycol (PG) and vegetable glycol (VG). To simulate the potential conditions for glass particle emission, EC vaped aerosols were collected at three distinctive puffing intervals: (1) 0-10 puffs, (2) 101-110 puffs, and (3) 201-210 puffs (flow rate of 1 L min-1 , 2 s per puff, and 10 puffs per sample)...
May 4, 2018: Environmental Research
Inna Kim, Min Chul Kim, Doo Sun Sim, Young Joon Hong, Ju Han Kim, Myung Ho Jeong, Jeong Gwan Cho, Jong Chun Park, Ki-Bae Seung, Kiyuk Chang, Youngkeun Ahn
The presence of metabolic syndrome (MS) is associated with an increased risk of cardiovascular disease morbidity and mortality. Moreover, data are lacking on the association of MS with clinical outcomes in young adults with acute myocardial infarction (AMI). This study was a retrospective analysis of 2,082 patients with AMI who underwent percutaneous coronary intervention. The term young was defined as age <50 years. The prevalence of patients aged <50 years was 18.4%. Among those patients, 43.4% had MS...
April 11, 2018: American Journal of Cardiology
Jae-Yun Shim, Tae-Kyung Kim, Young-Boong Kim, Ki-Hong Jeon, Kwang-Il Ahn, Hyun-Dong Paik, Yun-Sang Choi
The purpose of this study was to investigate the quality of duck ham formulated with duck skin through the pre-emulsification process. The experiments to investigate the quality characteristics of duck ham were carried out to measure proximate composition, cooking loss, emulsion stability, pH, color, texture profile analysis, apparent viscosity, and sensory characteristics. Duck ham was prepared with various ratios of duck skin in pre-emulsion as follows: Control (duct skin 30%), T1 (duck skin 20% + pre-emulsified duck skin 10%), T2 (duck skin 15% + pre-emulsified duck skin 15%), T3 (duck skin 10% + pre-emulsified duck skin 20%), and T4 (pre-emulsified duck skin 30%)...
February 2018: Korean Journal for Food Science of Animal Resources
Chang Gyun Park, Hyun Ki Cho, Han Jae Shin, Ki Hong Park, Heung Bin Lim
Air pollution is increasing, along with consumption of fossil fuels such as coal and diesel gas. Air pollutants are known to be a major cause of respiratory-related illness and death, however, there are few reports on the genotoxic characterization of diverse air pollutants in Korea. In this study, we investigated the mutagenic activity of various particles such as diesel exhaust particles (DEP), combustion of rice straw (RSC), pine stem (PSC), and coal (CC), tunnel dust (TD), and road side dust (RD). Ultra-fine particles (UFPs) were collected by the glass fiber filter pad...
April 2018: Toxicological Research
Young Rok Ham, Chang Hun Song, Hong Jin Bae, Jin Young Jeong, Min-Kyung Yeo, Dae Eun Choi, Ki-Ryang Na, Kang Wook Lee
Idiopathic membranous nephropathy (IMN) is a major cause of nephrotic syndrome. No biomarker to predict the long-term prognosis of IMN is currently available. Growth differentiation factor-15 (GDF-15) is a member of the transforming growth factor- β superfamily and has been associated with chronic inflammatory disease. It has the potential to be a useful prognostic marker in patients with renal diseases, such as diabetic nephropathy and IgA nephropathy. This study examined whether GDF-15 is associated with the clinical parameters in IMN and showed that GDF-15 can predict IMN disease progression...
2018: Disease Markers
Fuyong Du, Simon A Hinke, Cassandre Cavanaugh, David Polidori, Nathanial Wallace, Thomas Kirchner, Matthew Jennis, Wensheng Lang, Gee-Hong Kuo, Micheal D Gaul, James Lenhard, Keith Demarest, Nadim J Ajami, Yin Liang, Pamela J Hornby
The sodium/glucose cotransporters (SGLT1 and SGLT2) transport glucose across the intestinal brush border and kidney tubule. Dual SGLT1/2 inhibition could reduce hyperglycemia more than SGLT2-selective inhibition in patients with type 2 diabetes. However, questions remain about altered gastrointestinal (GI) luminal glucose and tolerability, and this was evaluated in slc5a1-/- mice or with a potent dual inhibitor (compound 8; SGLT1 K i = 1.5 ± 0.5 nM 100-fold greater potency than phlorizin; SGLT2 K i = 0.4 ± 0...
June 2018: Journal of Pharmacology and Experimental Therapeutics
Gyu Chul Oh, Jung-Kyu Han, Ki Hoon Han, Min-Su Hyon, Joon Hyung Doh, Moo Hyun Kim, Jin-Ok Jeong, Jang-Ho Bae, Sang Hyun Kim, Byung-Su Yoo, Sang Hong Baek, Moo-Yong Rhee, Sang-Hyun Ihm, Jung Hoon Sung, Young Jin Choi, Soo-Joong Kim, Kyung-Soon Hong, Byoung Kwon Lee, JangHyun Cho, Eun Seok Shin, Jay Young Rhew, Hyunsu Kim, Hyo-Soo Kim
PURPOSE: Hypertension and dyslipidemia are 2 risk factors of cardiovascular disease that often present simultaneously. Traditionally, treatment of these multiple conditions required separate medications for each disease, which may result in poor compliance and thus lead to possible treatment failure. Fixed-dose combination (FDC) therapy with a single pill may be a solution in these situations. METHODS: This multicenter, 8-week, randomized, double-blind, Phase III study evaluated the efficacy and safety of FDC treatment with telmisartan (80 mg) and rosuvastatin calcium (20 mg) in Korean patients with mild to moderate hypertension and dyslipidemia...
April 16, 2018: Clinical Therapeutics
Seong G Hwang, Jun Ki Hong, Abha Sharma, Gerald H Pollack, GunWoong Bahng
Earlier studies have reported the formation of an exclusion zone devoid of microspheres at the interface of water with a hydrophilic surface such as Nafion® or the hydrophilic ceramic powder. We now report the formation of a 'three-dimensional cell-like structured exclusion zone' in water prepared by two different methods. In the first, the hydrophilic powder was agitated with deionized water and allowed to rest (contact method). Subsequently, the 'powder-supernatant water' was collected and termed 'contact water'...
2018: PloS One
Chang Kyung Kang, Yee Gyung Kwak, Youngmi Park, Kyoung-Ho Song, Eu Suk Kim, Sook-In Jung, Kyung-Hwa Park, Wan Beom Park, Nam Joong Kim, Young Keun Kim, Hee-Chang Jang, Shinwon Lee, Jae Hyun Jeon, Ki Tae Kwon, Chung-Jong Kim, Yeon-Sook Kim, Hong Bin Kim
We aimed to elucidate the potential impact of gender on prognosis of Staphylococcus aureus bacteremia (SAB). We analyzed SAB cases prospectively collected over an 8-year period at 11 hospitals in Korea. SAB-related mortality was pre-defined as a death within 30 days from the onset of SAB without other apparent cause of death. The effect of gender on SAB-related mortality was examined in the entire cohort and in subgroups stratified according to methicillin resistance and Charlson's comorbidity-weighted index (CCWI) score...
April 17, 2018: European Journal of Clinical Microbiology & Infectious Diseases
Ki-Ik Park, Tae Young Jang, Seung-Chan Yang, Hyung Sun Hong, Young Hyo Kim
Objectives We aimed to evaluate the relationship between nasal eosinophilia and nasal hyperresponsiveness to allergen extract. Study Design Retrospective chart review. Setting Academic tertiary rhinologic practice. Subjects and Methods We performed allergy tests (skin prick test and multiple allergosorbent test) and nasal cytology for 194 patients with rhinitis symptoms (76 males and 118 females; age, 11-69 years). According to the results, they were classified into 4 groups: group A (allergic rhinitis with eosinophilia, n = 26), group B (allergic rhinitis without eosinophilia, n = 77), group C (nonallergic rhinitis with eosinophilia syndrome, n = 20), and group D (nonallergic rhinitis without eosinophilia, n = 71)...
April 1, 2018: Otolaryngology—Head and Neck Surgery
Joo Myung Lee, Tae-Min Rhee, Doyeon Hwang, Jonghanne Park, Chee Hae Kim, Ki Hong Choi, Eun-Seok Shin, Chang-Wook Nam, Joon-Hyung Doh, Bon-Kwon Koo
BACKGROUND: Recently, the concept of pressure-bounded coronary flow reserve (PB-CFR) has been introduced. However, using pressure-only data, a substantial proportion of patients could not be classified into high or low PB-CFR and remained as indeterminate PB-CFR. The current study evaluated the prognostic implication of thermodilution-based CFR (thermo-CFR) in patients with indeterminate PB-CFR. METHODS: Among 199 patients (211 lesions) with indeterminate PB-CFR, 170 patients (179 lesions) with deferral of revascularization were analyzed for the current study...
June 15, 2018: International Journal of Cardiology
Bo Su, Jian Su, Ying Zeng, En Ding, Fang Liu, Tuo Tan, Hong Xia, You-Hua Wu, Xi Zeng, Hui Ling, Hao Jiang, Xiao-Hong Ai, Qi Su
Transforming growth factor‑β1 (TGF‑β1) has been demonstrated to promote epithelial‑mesenchymal transition (EMT), invasion and proliferation in tumors via the activation of Rac1 and β‑catenin signaling pathways. The present study investigated the effects of diallyl disulfide (DADS) on TGF‑β1‑induced EMT, invasion and growth of gastric cancer cells. TGF‑β1 treatment augmented EMT and invasion, concomitantly with increased expression of TGF‑β1, Rac1 and β‑catenin in gastric cancer cells...
March 30, 2018: Oncology Reports
Jihoon Kang, Inhwan Hwang, Changhoon Yoo, Kyu-Pyo Kim, Jae Ho Jeong, Heung-Moon Chang, Sang Soo Lee, Do Hyun Park, Tae Jun Song, Dong Wan Seo, Sung Koo Lee, Myung-Hwan Kim, Seung-Mo Hong, Sang Hyun Shin, Dae Wook Hwang, Ki Byung Song, Jae Hoon Lee, Song Cheol Kim, Baek-Yeol Ryoo
Purpose nab-paclitaxel plus gemcitabine (AG) and FOLFIRINOX have been established as standard first-line treatment in metastatic pancreatic cancer (mPC). We performed retrospective analysis comparing the efficacies of AG and FOLFIRINOX in daily practice setting. Materials and Methods We analyzed 308 patients who presented initially as mPC and received AG (n = 149) or FOLFIRINOX (n = 159) as first-line treatment between 2013 and 2016. Primary endpoints were progression-free survival (PFS) and overall survival (OS)...
April 3, 2018: Investigational New Drugs
Pan Ki Kim, Yoo Jin Hong, Hajime Sakuma, Ashish Chawla, Jeffrey Kihyun Park, Chul Hwan Park, Donghyun Hong, Kyunghwa Han, Ji Yeon Lee, Jin Hur, Hye-Jeong Lee, Young Jin Kim, Young Joo Suh, Byoung Wook Choi
Purpose To evaluate the effect of changes in hematocrit level on myocardial extracellular volume (ECV) fraction, as quantified with cardiac magnetic resonance (MR) imaging in an animal model. Materials and Methods Thirteen adult male Sprague-Dawley rats underwent cardiac MR imaging before and after induction of anemia. MR imaging procedures, including unenhanced and contrast material-enhanced T1 mapping, were performed by using a saturation recovery Look-Locker sequence with a 9.4-T unit. An optimized T1 mapping sequence was established in the phantom study...
April 3, 2018: Radiology
Suk Pyo Shin, Yoon Mi Choi, Won Hee Kim, Sung Pyo Hong, Jong-Min Park, Joohee Kim, Oran Kwon, Eun Hyun Lee, Ki Baik Hahm
The exact pathogenesis of diarrhea-dominant irritable bowel syndrome (IBS) is not known, but the abnormal microbiota of the gastrointestinal tract is considered to be one of the important contributing factors as in other gastrointestinal diseases such as inflammatory bowel disease, antibiotic-associated diarrhea, and colorectal cancer as well as systemic diseases. Though diverse trials of probiotics had been continued in the treatment of diarrhea-IBS, only a few proved by randomized clinical trial. To prove the efficacy of Lactobacillus gasseri BNR17 isolated from breast milk in patients with diarrhea-IBS, prospective, randomized, placebo controlled clinical trial was done including health related-quality of life analysis, colon transit time, and the changes of fecal microbiota...
March 2018: Journal of Clinical Biochemistry and Nutrition
Joo Myung Lee, Hyun Kuk Kim, Kyung Seob Lim, Jun-Kyu Park, Ki Hong Choi, Jonghanne Park, Doyeon Hwang, Tae-Min Rhee, Jeong Hoon Yang, Eun-Seok Shin, Chang-Wook Nam, Joon-Hyung Doh, Joo-Yong Hahn, Bon-Kwon Koo, Myung Ho Jeong
OBJECTIVES: The aim of this study was to investigate the influence of microvascular damage in one vessel territory on invasively measured physiological parameters in the other vessel, using a porcine microvascular damage model. BACKGROUND: Although fractional flow reserve (FFR)-guided decision-making for the nonculprit stenosis in patients with acute myocardial infarction has been reported to be better than angiography-guided revascularization, there have been debates regarding the influence of microvascular dysfunction on measured FFR in nonculprit vessels...
March 22, 2018: JACC. Cardiovascular Interventions
Ki-Heon Lee, Chang-Yeol Han, Eun-Pyo Jang, Jung-Ho Jo, Seungki Hong, Jun Yeon Hwang, Eunsoo Choi, Jin-Ha Hwang, Heesun Yang
To date, most of the studies on quantum dot-light-emitting diodes (QLEDs) have been dedicated to the fabrication of high-efficiency monochromatic devices. However, for the ultimate application of QLEDs to the next-generation display devices, QLEDs should possess a full-color emissivity. In this study, we report the fabrication of all-solution-processed full-color-capable white QLEDs with a standard device architecture, where sequentially stacked blue (B)/green (G)/red (R) quantum dot (QD)-emitting layers (EMLs) are sandwiched by poly(9-vinylcarbazole) as the hole transport layer and ZnO nanoparticles (NPs) as the electron transport layer...
March 26, 2018: Nanoscale
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