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Jung-Ah Lim, Jangsup Moon, Tae-Joon Kim, Jin-Sun Jun, Byeongsu Park, Jung-Ick Byun, Jun-Sang Sunwoo, Kyung-Il Park, Soon-Tae Lee, Keun-Hwa Jung, Ki-Young Jung, Manho Kim, Daejong Jeon, Kon Chu, Sang Kun Lee
Seizure clustering is a common and significant phenomenon in patients with epilepsy. The clustering of spontaneous recurrent seizures (SRSs) in animal models of epilepsy, including mouse pilocarpine models, has been reported. However, most studies have analyzed seizures for a short duration after the induction of status epilepticus (SE). In this study, we investigated the detailed characteristics of seizure clustering in the chronic stage of a mouse pilocarpine-induced epilepsy model for an extended duration by continuous 24/7 video-EEG monitoring...
2018: PloS One
David Dreizin, Uttam Bodanapally, Alexis Boscak, Nikki Tirada, Ghada Issa, Jason W Nascone, Louis Bivona, Daniel Mascarenhas, Robert V O'Toole, Erika Nixon, Rong Chen, Eliot Siegel
Purpose To develop and test a computed tomography (CT)-based predictive model for major arterial injury after blunt pelvic ring disruptions that incorporates semiautomated pelvic hematoma volume quantification. Materials and Methods A multivariable logistic regression model was developed in patients with blunt pelvic ring disruptions who underwent arterial phase abdominopelvic CT before angiography from 2008 to 2013. Arterial injury at angiography requiring transarterial embolization (TAE) served as the outcome...
March 20, 2018: Radiology
Min Cheol Joo, Chul Hwan Jang, Jong Tae Park, Seung Won Choi, Seungil Ro, Min Seob Kim, Moon Young Lee
Although electrical stimulation is therapeutically applied for neural regeneration in patients, it remains unclear how electrical stimulation exerts its effects at the molecular level on spinal cord injury (SCI). To identify the signaling pathway involved in electrical stimulation improving the function of injured spinal cord, 21 female Sprague-Dawley rats were randomly assigned to three groups: control (no surgical intervention, n = 6), SCI (SCI only, n = 5), and electrical simulation (ES; SCI induction followed by ES treatment, n = 10)...
February 2018: Neural Regeneration Research
Ji-Sun Kim, Hyunjung Lee, Chang Hwa Jung, Sung-Joon Lee, Tae-Youl Ha, Jiyun Ahn
Mitochondrial dysfunction is associated with insulin resistance. Although chicoric acid (CA) is known to have beneficial effects on insulin sensitivity, the involvement of mitochondrial function has not been elucidated yet. Here, we investigated the effect of CA on insulin resistance and mitochondrial dysfunction. In palmitate-induced insulin-resistant C2C12 myotubes, CA improved impaired glucose uptake and insulin signaling pathways, along with enhanced mitochondrial membrane potential and oxygen consumption...
March 20, 2018: Bioscience, Biotechnology, and Biochemistry
Ji-Woong Choi, Tae-Yub Kwon, Su-Hyung Hong, Heon-Jin Lee
The original version of this article unfortunately contains a mistake in the fund number under Acknowledgment section. The funding number should read as "2017R1A5A2015391 and 2015R1D1A3A01019684".
March 20, 2018: Cell Biochemistry and Biophysics
Jae-Young Park, Tae-Joon Cho, Myung Chul Lee, Hyuk-Soo Han
A case of anterior cruciate ligament (ACL) reconstruction with meniscal repair in an osteogenesis imperfecta patient is reported. A 24-year-old female with osteogenesis imperfecta type 1a suffered from a valgus extension injury resulting in tear of ACL and medial meniscus. She underwent an arthroscopic-assisted ACL reconstruction and medial meniscus repair. Meniscal tear at the menisco-capsular junction of the posterior horn of medial meniscus was repaired with three absorbable sutures via inside-out technique...
March 20, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Cheong-Yong Yun, Seon Mi Ko, Yong Pyo Choi, Beom Joon Kim, Jungno Lee, Jae Mun Kim, Ju Yeon Kim, Jin Yong Song, Song-Hee Kim, Bang Yeon Hwang, Jin Tae Hong, Sang-Bae Han, Youngsoo Kim
Rationale: cAMP up-regulates microphthalmia-associated transcription factor subtype M (MITF-M) and tyrosinase (Tyro) in the generation of heavily pigmented melanosomes. Here, we communicate a therapeutic mechanism of hyperpigmented disorder by α-viniferin, an active constituent of Caragana sinica . Methods: We used cAMP-elevated melanocyte cultures or facial hyperpigmented patches for pigmentation assays, and applied immunoprecipitation, immunobloting, RT-PCR or reporter gene for elucidation of the antimelanogenic mechanism...
2018: Theranostics
Dong-Gyu Leem, Ji-Sun Shin, Kyung-Tack Kim, Sang Yoon Choi, Myung-Hee Lee, Kyung-Tae Lee
A previous study reported that a novel dammarane-type triterpene saponin, ginsenoside-Rg18, derived from the root of Panax ginseng , displayed hydroxyl radical scavenging, anti-bacterial and cytotoxic activities. However, the underlying molecular mechanisms of its anti-proliferative effect on non-small cell lung cancer (NSCLC) A549 cells remains unclear. In the present study, it was determined that Rg18 inhibited the proliferation of A549 cells with a half-maximal inhibitory concentration of 150 µM. Flow cytometry analysis indicated that cell cycle progression was blocked by Rg18 at G1 phase in A549 cells, which was accompanied by downregulation of cyclin-dependent kinase 2 (CDK2), CDK4, CDK6, cyclin D1, cyclin D2, cyclin E and phosphorylated retinoblastoma protein expression at the protein level...
April 2018: Oncology Letters
Hwi Don Lee, Jun Geun Shin, Hoon Hyun, Bong-Ahn Yu, Tae Joong Eom
Tendons are tough, flexible, and ubiquitous tissues that connect muscle to bone. Tendon injuries are a common musculoskeletal injury, which affect 7% of all patients and are involved in up to 50% of sports-related injuries in the United States. Various imaging modalities are used to evaluate tendons, and both magnetic resonance imaging and sonography are used clinically to evaluate tendons with non-invasive and non-ionizing radiation. However, these modalities cannot provide 3-dimensional (3D) structural images and are limited by angle dependency...
March 19, 2018: Scientific Reports
Gee Yeong Kim, Alessandro Senocrate, Tae-Youl Yang, Giuliano Gregori, Michael Grätzel, Joachim Maier
In the same way as electron transport is crucial for information technology, ion transport is a key phenomenon in the context of energy research. To be able to tune ion conduction by light would open up opportunities for a wide realm of new applications, but it has been challenging to provide clear evidence for such an effect. Here we show through various techniques, such as transference-number measurements, permeation studies, stoichiometric variations, Hall effect experiments and the use of blocking electrodes, that light excitation enhances by several orders of magnitude the ionic conductivity of methylammonium lead iodide, the archetypal metal halide photovoltaic material...
March 19, 2018: Nature Materials
Seung Ho Choi, Seong-Wan Kim, Zahyun Ku, Michelle A Visbal-Onufrak, Seong-Ryul Kim, Kwang-Ho Choi, Hakseok Ko, Wonshik Choi, Augustine M Urbas, Tae-Won Goo, Young L Kim
The original PDF version of this Article contained errors in Equations 1 and 2. Both equations omitted all Γ terms. This has been corrected in the PDF version of the Article. The HTML version was correct from the time of publication.
March 19, 2018: Nature Communications
Kang Min Park, Bong Ju Lee, Tae Hyung Kim, Chi Woong Mun, Sung Eun Kim
No abstract text is available yet for this article.
March 20, 2018: Neurology
Pallavi Gurung, Suhrid Banskota, Nikita Katila, Jaya Gautam, Tara Man Kadayat, Dong-Young Choi, Eung Seok Lee, Tae Cheon Jeong, Jung-Ae Kim
The pathogenesis of inflammatory bowel disease (IBD) is associated with production of immense pro-inflammatory cytokines including TNF-α. Once generated, TNF-α stimulates production of various pro-inflammatory cytokines and disrupts mucosal barrier by inducing inflamed mucosal epithelial cell death. In the present study, we investigated inhibitory effects of TI-1-162, a hydroxyindenone derivative, against TNF-α-induced and TNBS-induced colon inflammation. TI-1-162 showed inhibitory effect on the TNF-α-induced adhesion of U937 monocytic cells to HT-29 colonic epithelial cells (IC50 = 0...
March 16, 2018: European Journal of Pharmacology
Rui-Hua Xu, Kei Muro, Satoshi Morita, Satoru Iwasa, Sae Won Han, Wei Wang, Masahito Kotaka, Masato Nakamura, Joong Bae Ahn, Yan-Hong Deng, Takeshi Kato, Sang-Hee Cho, Yi Ba, Hiroshi Matsuoka, Keun-Wook Lee, Tao Zhang, Yasuhide Yamada, Junichi Sakamoto, Young Suk Park, Tae Won Kim
BACKGROUND: Studies of a modified XELIRI (mXELIRI; capecitabine plus irinotecan) regimen suggest promising efficacy and tolerability profiles in the first-line and second-line settings. Therefore, we aimed to compare the efficacy and safety of the mXELIRI regimen with that of standard FOLFIRI (leucovorin, fluorouracil, and irinotecan), with or without bevacizumab in both regimens, as a second-line therapy for metastatic colorectal cancer. METHODS: We did a multicentre, open-label, randomised, non-inferiority, phase 3 trial...
March 16, 2018: Lancet Oncology
Hyoungnae Kim, Misol Lee, Min-Uk Cha, Ki Heon Nam, Seong Yeong An, Seohyun Park, Jong Hyun Jhee, Hae-Ryong Yun, Youn Kyung Kee, Jung Tak Park, Tae-Hyun Yoo, Shin-Wook Kang, Seung Hyeok Han
Background: Although asymptomatic microscopic hematuria (MH) is a common finding in clinical practice, its long-term outcome remains unknown. Aim: This study evaluated the clinical implication of MH in the general population using a large-scale long-term longitudinal cohort database. Methods: This study included 8719 participants from the Korean Genome and Epidemiology Study between 2001 and 2014. MH was defined as ≥ 5 red blood cells per high-power field in random urinalysis without evidence of pyuria...
March 14, 2018: QJM: Monthly Journal of the Association of Physicians
Min Young Ha, Tae Jun Yoon, Tsvi Tlusty, Yongseok Jho, Won Bo Lee
Density fluctuations and the Widom line are of great importance in understanding the critical phenomena and the behaviors of supercritical fluids (SCF). In this Letter, we report on the direct classification of liquid-like and gas-like molecules coexisting in the SCF, identified by machine learning analysis on simulation data. The deltoid coexistence region encloses the Widom line, and may therefore be termed the Widom delta. Number fractions of gas-like and liquid-like particles are found to undergo continuous transition across the delta, following a simplified two-state model...
March 19, 2018: Journal of Physical Chemistry Letters
Sunil Ghatge, Youri Yang, Woo-Young Song, Tae-Young Kim, Hor-Gil Hur
In the present study, the gene encoding a multicopper oxidase, more precisely a laccase from the thermoalkaliphilic aerobic bacterium Caldalkalibacillus thermarum strain TA2.A1 (CtLac), was cloned and expressed in Escherichia coli. CtLac is a monomeric protein with a molecular weight of 57 kDa as determined by native polyacrylamide gel electrophoresis. The optimum pH and temperature for 2,6-dimethoxyphenol (2,6-DMP) oxidation were 8.0 and 70 °C, respectively. The kinetic constants Km and kcat for 2,6-DMP were of 200 μM and 23 s-1 , respectively...
March 19, 2018: Applied Microbiology and Biotechnology
Boram Lee, Jihong Lee, Jin-Hong Cheon, Hyun-Kyung Sung, Seung-Hun Cho, Gyu Tae Chang
Objectives. We aimed to summarize and critically evaluate the available evidence regarding the efficacy and safety of acupuncture for children with autism spectrum disorder (ASD). Methods. We searched 13 databases for studies published up to December 2016. Randomized controlled trials (RCTs) evaluating the efficacy of acupuncture for children with ASD were included. Outcome measures were the overall scores on scales evaluating the core symptoms of ASD and the scores for each symptom, such as social communication ability and skills, stereotypies, language ability, and cognitive function...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
Tae-Woon Kim, Hye-Sang Park
Maternal obesity induces hippocampal functional changes and leads to deficits in cognitive functions, such as learning and memory in offspring. We investigated the protective effects of physical exercise against cognitive function deficit in offspring born to obese mothers. Neurotrophic factors, neurogenesis, and apoptosis were analyzed in the hippocampus and dentate gyrus of offspring. Four-week-old female rats were fed a high-fat diet (HFD) for 20 weeks: 12 weeks prior to mating, and 8 weeks during pregnancy and breast-feeding...
March 15, 2018: Behavioural Brain Research
Jeeyun Lee, Seung Tae Kim, Sungju Park, Sujin Lee, Se Hoon Park, Joon Oh Park, Ho Yeong Lim, Hongmo Ahn, Haesook Bok, Kyoung-Mee Kim, Myung Ju Ahn, Won Ki Kang, Young Suk Park
BACKGROUND: Samsung Advance Institute of Technology-301 (SAIT301) is a human immunoglobulin G2 antibody that can specifically target mesenchymal epithelial transition factor (c-MET). This novel antibody has higher priority over hepatocyte growth factors when binding to the Sema domain of c-MET and accelerates the internalization and degradation of c-MET, proving its powerful antitumor activities in intra- as well as extracellular areas. MATERIALS AND METHODS: SAIT301 was administered intravenously once every 3 weeks in c-MET overexpressed solid tumor patients, focusing on metastatic colorectal cancer (CRC) according to common clinical phase I criteria...
January 31, 2018: Clinical Colorectal Cancer
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