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https://www.readbyqxmd.com/read/29050208/hif-1%C3%AE-crat-mir-144-3p-axis-dysregulation-promotes-osteoarthritis-chondrocyte-apoptosis-and-vlcfa-accumulation
#1
Jinsoo Song, Yeon-Ho Kang, Sik Yoon, Churl-Hong Chun, Eun-Jung Jin
The functional role(s) of peroxisomes in osteoarthritis remains unclear. We demonstrated that peroxisomal dysfunction in osteoarthritis is responsible for very-long-chain fatty acid (VLCFA) accumulation. Through gene-profiling analyses, we identified CRAT as the gene responsible for this event. CRAT expression was suppressed in osteoarthritis chondrocytes, and its knockdown yielded pathological osteoarthritic characteristics, including VLCFA accumulation, apoptosis, autophagic inhibition, and mitochondrial dysfunction...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29047269/high-speed-self-biased-broadband-photodetector-based-on-a-solution-processed-ag-nanowire-si-schottky-junction
#2
Mohit Kumar, Malkeshkumar Patel, Hong-Sik Kim, Joondong Kim, Junsin Yi
In this work, we demonstrate the effectiveness of Ag nanowires (AgNWs) to design a high-speed broadband photodetector. A simple AgNW solution was spin-coated on a Si substrate to form a Schottky junction. The junction properties were investigated using current-voltage characteristics and Mott-Schottky analysis. The present device had a remarkably fast response speed, e.g., rising time (τr = 784 ns) and fall time (τf = 92 μs), with good reproducibility over a wide range of switching frequencies (50 Hz - 50 kHz)...
October 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29047243/three-dimensional-fast-spin-echo-imaging-without-fat-suppression-of-the-knee-diagnostic-accuracy-comparison-to-fat-suppressed-imaging-on-1-5t-mri
#3
Hee Woo Cho, Jin Suck Suh, Jin Oh Park, Hyoung Sik Kim, Soo Yoon Chung, Young Han Lee, Seok Hahn
PURPOSE: To evaluate the diagnostic performance of three-dimensional fast spin-echo (3D FSE-Cube) without fat suppression (NFS) for detecting knee lesions, using comparison to 3D FSE-Cube with fat suppression (FS). MATERIALS AND METHODS: One hundred twenty-four patients who underwent 1.5T knee magnetic resonance imaging (MRI) scans and 25 subsequent arthroscopic surgeries were retrospectively reviewed. Using arthroscopic results and two-dimensional images as reference standards, diagnostic performances of 3D FSE-Cube-NFS and FS imaging about lesions of ligament, meniscus, subchondral bone marrow edema (BME), and cartilage were compared...
November 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29046701/safety-of-8-weeks-oral-administration-of-arctium-lappa-l
#4
So-Hyeon Bok, Seung Sik Cho, Chun-Sik Bae, Dae-Hun Park, Kyung-Mok Park
Recently, worldwide dietary reference intakes have been considered an important guideline for public health. Some governments and the World Health Organization (WHO) provide guidelines concerning dietary intake. Although an ingredient may have a history of use as a culinary material, changes in the environment over time suggest that the acceptable maximum intake each of food/culinary material should be regularly evaluated. Arctium lappa L. has been used as a culinary material for many centuries in Korea and Japan and some recent studies have reported related therapeutic effects...
September 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/29046695/artemisia-argyi-attenuates-airway-inflammation-in-lipopolysaccharide-induced-acute-lung-injury-model
#5
Na-Rae Shin, Sung-Hyeuk Park, Je-Won Ko, Hyung-Won Ryu, Seong-Hun Jeong, Jong-Choon Kim, Dong-Ho Shin, Hoon-Sang Lee, In-Sik Shin
Artemisia argyi is used as a health supplement, tea, and food source in Korea. This study aimed to evaluate the effect of Artemisia argyi (AA) and its active compound, dehydromatricarin A (DA), on the attenuation of airway inflammation in a murine model of lipopolysaccharide (LPS)-induced acute lung injury (ALI). The C57BL/6 mice were administered AA (50 mg/kg or 100 mg/kg) and DA (10 mg/kg or 20 mg/kg) by oral gavage from day 0 to 7 days and LPS treated by intranasal instillation 48 hours before the sacrifice...
September 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/29045422/cluster-analysis-identifies-three-urodynamic-patterns-in-patients-with-orthotopic-neobladder-reconstruction
#6
Kwang Hyun Kim, Hyun Suk Yoon, Wan Song, Hee Jung Choo, Hana Yoon, Woo Sik Chung, Bong Suk Sim, Dong Hyeon Lee
PURPOSE: To classify patients with orthotopic neobladder based on urodynamic parameters using cluster analysis and to characterize the voiding function of each group. MATERIALS AND METHODS: From January 2012 to November 2015, 142 patients with bladder cancer underwent radical cystectomy and Studer neobladder reconstruction at our institute. Of the 142 patients, 103 with complete urodynamic data and information on urinary functional outcomes were included in this study...
2017: PloS One
https://www.readbyqxmd.com/read/29043239/a-case-of-synchronous-multiple-myeloma-and-chronic-myeloid-leukemia
#7
Ji-Young Lee, Sang-Min Lee, Hye-Kyoung Yoon, Ki-Hyang Kim, Moon-Young Choi, Won-Sik Lee
No abstract text is available yet for this article.
September 2017: Blood Research
https://www.readbyqxmd.com/read/29043235/platelet-to-lymphocyte-ratio-plr-retains-independent-prognostic-significance-in-advanced-stage-marginal-zone-lymphoma-patients-treated-with-rituximab-cyclophosphamide-vincristine-and-prednisone-combination-chemotherapy-r-cvp-consortium-for-improving-survival
#8
Jeongkuk Seo, Won Seog Kim, Jin Seok Kim, Seok Jin Kim, Jae Hoon Lee, Jun Shik Hong, Gyeong-Won Lee, Sung Yong Oh, Ji-Hyun Lee, Dok Hyun Yoon, Won-Sik Lee, Hyo Jung Kim, Jae-Yong Kwak, Hye Jin Kang, Jae-Cheol Jo, Yong Park, Ho Sup Lee, Hyo-Jin Kim, Cheolwon Suh
BACKGROUND: Rituximab plus cyclophosphamide, vincristine, and prednisone (R-CVP) is one of the effective chemotherapeutic regimens for patients with advanced stage marginal zone lymphoma (MZL). However, prognostic factors that affect the outcome of treatment for MZL are not well understood. METHODS: Between August 2006 and June 2013, patients with newly diagnosed stage III and IV MZL treated with R-CVP as a first-line therapy from 15 institutions were retrospectively analyzed...
September 2017: Blood Research
https://www.readbyqxmd.com/read/29043232/comparison-of-the-effects-of-early-intensified-induction-chemotherapy-and-standard-3-7-chemotherapy-in-adult-patients-with-acute-myeloid-leukemia
#9
Jae-Ho Yoon, Hee-Je Kim, Dae-Hun Kwak, Gi June Min, Sung-Soo Park, Young-Woo Jeon, Sung-Eun Lee, Byung-Sik Cho, Ki-Seong Eom, Yoo-Jin Kim, Seok Lee, Chang-Ki Min, Seok-Goo Cho, Dong-Wook Kim, Jong Wook Lee, Woo-Sung Min
BACKGROUND: Standard remission induction chemotherapy consisting of anthracycline plus cytarabine (3+7) is administered for adult acute myeloid leukemia (AML). However, the effects of intensified regimen on complete remission (CR), relapse and overall survival (OS) remain unknown. METHODS: We analyzed 1195 patients treated with idarubicin plus cytarabine/BHAC (3+7) from 2002 to 2013. Among them, 731 received early intensification with 3-day cytarabine/BHAC (3+10, N=363) or 2-day idarubicin plus cytarabine/BHAC 3 days (5+10, N=368)...
September 2017: Blood Research
https://www.readbyqxmd.com/read/29042648/proteomic-analysis-of-human-lacrimal-and-tear-fluid-in-dry-eye-disease
#10
Jae Hun Jung, Yong Woo Ji, Ho Sik Hwang, Jae Won Oh, Hyun Chang Kim, Hyung Keun Lee, Kwang Pyo Kim
To understand the pathophysiology of dry eye disease (DED), it is necessary to characterize proteins in the ocular surface fluids, including tear fluid (TF) and lacrimal fluid (LF). There have been several reports of TF proteomes, but few proteomic studies have examined LF secreted from the lacrimal gland (LG). Therefore, we characterized the proteins constituting TF and LF by liquid chromatography mass spectrometry. TF and LF were collected from patients with non-Sjögren syndrome DED and from healthy subjects...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29041581/spatially-localized-wavelength-selective-absorption-in-morphology-modulated-semiconductor-nanowires
#11
Jin Sik Choi, Kyoung-Ho Kim, You-Shin No
In this study, we proposed morphology-modulated Si nanowires (NWs) with a hexagonal cross-section and numerically investigated their resonant optical absorption and scattering properties. The calculated absorption and scattering efficiency spectra of the NWs exhibited optical resonances that could be controlled by tuning the aspect ratio (AR) of the NW cross-sectional shapes. The spectra also revealed interesting spectral behaviors including resonant peak shifts in the absorption spectrum and asymmetric line shapes in the scattering spectrum...
September 18, 2017: Optics Express
https://www.readbyqxmd.com/read/29037935/the-pathogenesis-of-delayed-epidural-hematoma-after-posterior-fossa-surgery
#12
Seunghoon Lee, Sang-Ku Park, Byung-Euk Joo, Jeong-A Lee, Doo-Sik Kong, Kwan Park
The purpose of this study was to analyze the pathogenesis of delayed epidural hematoma (EDH) after posterior fossa surgery. Non-traumatic, non-arterial origin delayed EDH after posterior fossa surgery is extremely rare. Moreover, the pathogenesis of its supratentorial extension is obscure. Between April 1997 and June 2016, over 3300 patients underwent microvascular decompression (MVD) for neurovascular compression syndrome. The medical chart of four patients with delayed EDH were retrospectively reviewed. The median time from MVD to re-CT scan was 58 h (range, 33-100)...
October 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29037811/one-step-construction-of-a-molybdenum-disulfide-multi-walled-carbon-nanotubes-polypyrrole-nanocomposite-biosensor-for-the-ex-vivo-detection-of-dopamine-in-mouse-brain-tissue
#13
Kathiresan Vijayaraj, Thirumalai Dinakaran, Yujeong Lee, Suhkmann Kim, Hyung Sik Kim, Jaewon Lee, Seung-Cheol Chang
We developed a new strategy for construction of a biosensor for the neurotransmitter dopamine. The biosensor was constructed by one-step electrochemical deposition of a nanocomposite in aqueous solution at pH 7.0, consisting of molybdenum disulfide, multi-walled carbon nanotubes, and polypyrrole. A series of analytical methods was performed to investigate the surface characteristics and the improved electrocatalytic effect of the nanocomposite, including cyclic voltammetry, electrochemical impedance spectroscopy, field-emission scanning electron microscopy, atomic force microscopy, and Raman spectroscopy...
October 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29037004/association-of-systolic-blood-pressure-with-progression-of-symptomatic-intracranial-atherosclerotic-stenosis
#14
Jong-Ho Park, Bruce Ovbiagele, Keun-Sik Hong, Sun U Kwon
BACKGROUND AND PURPOSE: Elevated blood pressure (BP) is associated with greater severity of intracranial atherosclerotic stenosis (ICAS) and increased risk of ischemic stroke. Because little is known about the relationship of maintained BP level with progression of symptomatic ICAS (sICAS), we evaluated the independent association of maintained systolic BP (SBP) with risk of sICAS progression. METHODS: We analyzed the Trial of cilOstazol in Symptomatic intracranial Stenosis 2, which evaluated 402 stroke patients with sICAS (mean age, 64...
September 2017: Journal of Stroke
https://www.readbyqxmd.com/read/29036767/the-role-of-glycation-in-the-pathogenesis-of-aging-and-its-prevention-through-herbal-products-and-physical-exercise
#15
Chan-Sik Kim, Sok Park, Junghyun Kim
PURPOSE: Advanced glycation end products (AGEs) are non-enzymatic modifications of proteins or lipids after exposure to sugars. In this review, the glycation process and AGEs are introduced, and the harmful effects of AGEs in the aging process are discussed. METHODS: Results from human and animal studies examining the mechanisms and effects of AGEs are considered. In addition, publications addressing means to attenuate glycation stress through AGE inhibitors or physical exercise are reviewed...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036175/the-efficiency-of-aspheric-intraocular-lens-according-to-biometric-measurements
#16
Woong-Joo Whang, Junjie Piao, Young-Sik Yoo, Choun-Ki Joo, Geunyoung Yoon
PURPOSE: To analyze internal spherical aberration in pseudophakic eyes that underwent aspheric intraocular lens (IOL) implantation, and to investigate the relationships between biometric data and the effectiveness of aspheric IOL implantation. METHODS: This retrospective study included 40 eyes of 40 patients who underwent implantation of an IOL having a negative spherical aberration of -0.20 μm (CT ASPHINA 509M; Carl Zeiss Meditec Inc., Germany). The IOLMaster (version 5...
2017: PloS One
https://www.readbyqxmd.com/read/29036025/the-fate-of-the-adipose-derived-stromal-cells-during-angiogenesis-and-adipogenesis-after-cell-assisted-lipotransfer
#17
Ki Yong Hong, Sangjun Yim, Hyun Jung Kim, Ung Sik Jin, SooA Lim, SuRak Eo, Hak Chang, Kyung Won Minn
BACKGROUND: Cell-assisted lipotransfer (CAL) is a process in which fat grafting is supplemented with autologous adipose-derived stromal cells (ASCs). Since the efficacy of the technique was demonstrated, studies have focused on the mechanism by which CAL enhances the rate of graft survival. However, the microenvironmental changes in donor and recipient tissue associated with CAL remain unclear. METHODS: We introduced an animal model of CAL using two different transgenic reporter mice...
October 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29035815/genipin-inhibits-allergic-responses-in-ovalbumin-induced-asthmatic-mice
#18
Je-Won Ko, Na-Rae Shin, Sung-Hyeuk Park, Young-Kwon Cho, Jong-Choon Kim, Chang-Seob Seo, In-Sik Shin
Genipin is a natural compound isolated from the fruit of Gardenia jasminoides with various pharmacological effects. In this study, we investigated whether genipin effectively alleviates allergic responses in a murine model of ovalbumin (OVA)-induced asthma. The mice were administered an intraperitoneal injection of OVA on day 0 and 14 to boost the immune response; genipin was then administered from day 18 to 23 by oral gavage. On days 21 to 23, mice were OVA-challenged using am ultrasonic nebulizer, and airway hyperresponsiveness (AHR) was determined on day 24 by plethysmography...
October 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29033839/schisandra-chinensis-stem-ameliorates-3-nitropropionic-acid-induced-striatal-toxicity-via-activation-of-the-nrf2-pathway-and-inhibition-of-the-mapks-and-nf-%C3%AE%C2%BAb-pathways
#19
Eun-Jeong Kim, Minhee Jang, Min Jung Lee, Jong Hee Choi, Sung Joong Lee, Sun Kwang Kim, Dae Sik Jang, Ik-Hyun Cho
The beneficial value of the stems of Schisandra chinensis (SSC) in neurological diseases is unclear. We examined whether SSC aqueous extract (SSCE) alleviates striatal toxicity in a 3-nitropropionic acid (3-NPA)-induced mouse model of Huntington's disease (HD). SSCE (75, 150, or 300 mg/kg/day, p.o.) was given daily before or after 3-NPA treatment. Pre- and onset-treatment with SSCE displayed a significant protective effect and pretreatment was more effective as assessed by neurological scores and survival rate...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29032655/microglial-involvement-in-the-development-of-olfactory-dysfunction
#20
REVIEW
Yoojin Seo, Hyung-Sik Kim, Kyung-Sun Kang
Olfaction is one of the oldest and important senses for life. Olfactory impairment is the most common clinical manifestation among elderly, and its prevalence is sharply increased with aging. Importantly, growing evidence has shown that olfactory dysfunction is the first sign of neurodegeneration, indicating the importance of olfactory assessment as an early diagnostic marker for the detection of neurological disorders. In this review, we described the nature of olfactory dysfunction and the advantage of animal models in olfaction study with brief introduction of olfactory behavior tests widely used in this field...
October 13, 2017: Journal of Veterinary Science
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