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https://www.readbyqxmd.com/read/28438981/acute-inflammation-reveals-gabaa-receptor-mediated-nociception-in-mouse-dorsal-root-ganglion-neurons-via-pge2-receptor-4-signaling
#1
In Jeong Jang, Alexander J Davies, Nozomi Akimoto, Seung Keun Back, Pa Reum Lee, Heung Sik Na, Hidemasa Furue, Sung Jun Jung, Yong Ho Kim, Seog Bae Oh
Gamma-aminobutyric acid (GABA) depolarizes dorsal root ganglia (DRG) primary afferent neurons through activation of Cl(-) permeable GABAA receptors but the physiologic role of GABAA receptors in the peripheral terminals of DRG neurons remains unclear. In this study, we investigated the role of peripheral GABAA receptors in nociception using a mouse model of acute inflammation. In vivo, peripheral administration of the selective GABAA receptor agonist muscimol evoked spontaneous licking behavior, as well as spinal wide dynamic range (WDR) neuron firing, after pre-conditioning with formalin but had no effect in saline-treated mice...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28433991/the-effect-of-traumatic-experiences-and-psychiatric-symptoms-on-the-life-satisfaction-of-north-korean-refugees
#2
Yeonsun Choi, Sun Young Lim, Jin Yong Jun, So Hee Lee, So Young Yoo, Soohyun Kim, Ah Reum Gwak, Ji-Chul Kim, Yu Jin Lee, Seog Ju Kim
BACKGROUND: Successful adaptation of refugees to a new society can be hindered by traumatic experiences and psychiatric symptoms. This study aims to examine the relationship between trauma, psychiatric symptoms and life satisfaction of North Korean refugees resettled in South Korea. METHODS: A total of 211 North Korean refugees living in South Korea completed a series of questionnaires on the history of their previous traumatic experiences, life satisfaction in South Korea, depression, anxiety, somatization and post-traumatic stress disorder (PTSD) symptoms...
April 22, 2017: Psychopathology
https://www.readbyqxmd.com/read/28429591/a-high-performance-furan-containing-conjugated-polymer-for-environmentally-benign-solution-processing
#3
Sang Myeon Lee, Hae Rang Lee, A-Reum Han, Junghoon Lee, Joon Hak Oh, Changduk Yang
Developing semiconducting polymers that exhibit both strong charge transport capability via highly ordered structures and good processability in environmentally benign solvents remains a challenge. Given that furan-based materials have better solubility in various solvents than analogous thiophene-based materials, we have synthesized and characterized furanyl-diketopyrrolopyrrole polymer (PFDPPTT-Si) together with its thienyl-diketopyrrolopyrrole-based analogue (PTDPPTT-Si) to understand subtle changes induced by the use of furan instead of thiophene units...
April 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28423548/axl-acts-as-a-tumor-suppressor-by-regulating-light-expression-in-t-lymphoma
#4
Eun-Hee Lee, Eun-Mi Kim, Kon-Young Ji, A-Reum Park, Ha-Rim Choi, Hwa-Youn Lee, Su-Man Kim, Byung Yeoup Chung, Chul-Hong Park, Hyo Jin Choi, Young-Hyeh Ko, Hyoung-Woo Bai, Hyung-Sik Kang
Axl is an oncogenic receptor tyrosine kinase that plays a role in many cancers. LIGHT (Lymphotoxin-related inducible ligand that competes for glycoprotein D binding to herpesvirus entry mediator on T cells) is a ligand that induces robust anti-tumor immunity by enhancing the recruitment and activation of effector immune cells at tumor sites. We observed that mouse EL4 and human Jurkat T lymphoma cells that stably overexpressed Axl also showed high expression of LIGHT. When Jurkat-Axl cells were treated with Gas6, a ligand for Axl, LIGHT expression was upregulated through activation of the PI3K/AKT signaling pathway and transcriptional induction by Sp1...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28383915/limaol-a-polyketide-from-the-benthic-marine-dinoflagellate-prorocentrum-lima
#5
A Reum Yang, Sangbum Lee, Young Du Yoo, Hyung Seop Kim, Eun Ju Jeong, Jung-Rae Rho
Limaol (1), along with a dinophysistoxin 1 derivative and an okadaic acid (OA) derivative, was isolated from the large-scale cultivation of the benthic marine dinoflagellate Prorocentrum lima. The structure of 1 was determined by a combination of NMR spectroscopy and mass spectrometry and contained tetrahydropyran, 1,3,5,7-tetra(methylene)heptane, and octahydrospiro[pyran-2,2'-pyrano[3,2-b]pyran] moieties. The absolute configuration of 1 was completely elucidated on the basis of ROESY correlations, J-based configuration analysis, and modified Mosher's ester analysis...
April 6, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28379674/mens-rea-and-methamphetamine-high-time-for-a-modern-doctrine-acknowledging-the-neuroscience-of-addiction
#6
Meredith Cusick
In American criminal law, actus non facit reum, nisi mens sit rea, "an act does not make one guilty, without a guilty mind." Both actus reus and mens rea are required to justify criminal liability. The Model Penal Code's (MPC) section on culpability has been especially influential on mens rea analysis. An issue of increasing importance in this realm arises when an offensive act is committed while the actor is under the influence of drugs. Several legal doctrines address the effect of intoxication on mental state, including the MPC, limiting or eliminating its relevance to the mens rea analysis...
April 2017: Fordham Law Review
https://www.readbyqxmd.com/read/28369480/pca22-acts-as-a-suppressor-of-atrzf1-to-mediate-proline-accumulation-in-response-to-abiotic-stress-in-arabidopsis
#7
Ah-Reum Kim, Ji-Hee Min, Kyeong-Hwan Lee, Cheol Soo Kim
Proline metabolism is important for environmental responses, plant growth, and development. However, its precise roles in plant abiotic stress tolerance are not well understood. Mutants are valuable for the identification of new genes and for elucidating their roles in physiological mechanisms. We applied a suppressor mutation approach to identify novel genes involved in the regulation of proline metabolism in Arabidopsis. Using the atrzf1 (Arabidopsis thaliana ring zinc finger 1) mutant as a parental line for activation tagging mutagenesis, we selected several mutants with suppressed induction of proline accumulation under dehydration conditions...
March 21, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28342755/mutation-analysis-of-the-interactions-between-mycobacterium-tuberculosis-caseinolytic-protease-c1-clpc1-and-ecumicin
#8
In-Pil Jung, Na-Reum Ha, A-Ru Kim, Sang-Heon Kim, Moon-Young Yoon
Ecumicin is a well-known and potent inhibitor of Mycobacterium tuberculosis. Although the target of ecumicin is caseinolytic protease C1 (ClpC1), the exact mechanism by which ecumicin inhibits ClpC1 has not been identified. To analyze ecumicin's action on ClpC1, site-directed mutagenesis was performed on its binding site. The estimated binding residues within ClpC1 to ecumicin were selected via in silico analysis using molecular docking. The selected residues were mutated by site-directed mutagenesis and the effects on ecumicin binding were analyzed...
March 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28335666/control-of-dental-derived-induced-pluripotent-stem-cells-through-modified-surfaces-for-dental-application
#9
Hyunmin Choi, Kyu-Hyung Park, Ah-Reum Lee, Chin Hee Mun, Yong Dae Shin, Yong-Beom Park, Young-Bum Park
OBJECTIVE: The aim of this study is to investigate the behaviour of iPSc derived from dental stem cells in terms of initial adhesion, differentiation potential on differently surface-treated titanium disc. MATERIALS AND METHODS: iPSc derived from human gingival fibroblasts (hGFs) were established using 4-reprogramming factors transduction with Sendai virus. The hGF-iPSc established in this study exhibited the morphology and growth properties similar to human embryonic stem (ES) cells and expressed pluripotency makers...
March 23, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28264430/characterization-of-a-new-trioxilin-and-a-sulfoquinovosyl-diacylglycerol-with-anti-inflammatory-properties-from-the-dinoflagellate-oxyrrhis-marina
#10
Eun Young Yoon, A Reum Yang, Jaeyeon Park, Seung Joo Moon, Eun Ju Jeong, Jung-Rae Rho
Two new compounds-a trioxilin and a sulfoquinovosyl diacylglycerol (SQDG)-were isolated from the methanolic extract of the heterotrophic dinoflagellate Oxyrrhis marina cultivated by feeding on dried yeasts. The trioxilin was identified as (4Z,8E,13Z,16Z,19Z) -7(S),10(S),11(S)-trihydroxydocosapentaenoic acid (1), and the SQDG was identified as (2S)-1-O-hexadecanosy-2-O-docosahexaenoyl-3-O-(6-sulfo-α-d-quinovopyranosyl)-glycerol (2) by a combination of nuclear magnetic resonance (NMR) spectra, mass analyses, and chemical reactions...
February 27, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28249791/an-evaluation-of-forearm-deformities-in-hereditary-multiple-exostoses-factors-associated-with-radial-head-dislocation-and-comprehensive-classification
#11
Ah Reum Jo, Sung Taek Jung, Myung Sun Kim, Chang Seon Oh, Byung Ju Min
PURPOSE: This study attempted to evaluate a series of patients with hereditary multiple exostoses (HME) who could not be categorized according to the widely accepted Masada classification and to identify radiographic variables such as radial bowing, ulnar shortening, ulnar variance, radial articular angle, and carpal slip predictive of deformity. METHODS: We retrospectively reviewed data on 102 upper limbs of 53 pediatric patients with HME. Demographics, site of forearm involvement, and radiographic parameters were documented...
February 27, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28246518/magnetic-resonance-imaging-findings-of-mumps-meningoencephalitis-with-bilateral-hippocampal-lesions-without-preceding-acute-parotitis-a-case-report
#12
Ah Reum Woo, Ha Young Lee, Myung Kwan Lim, Young Hye Kang, Soon Gu Cho, Seong Hye Choi, Ji Hyeon Baek
Meningitis is a common central nervous system (CNS) complication of the mumps, a viral infection, but encephalitis and meningoencephalitis are less common in mumps. We describe magnetic resonance imaging findings of acute mumps meningoencephalitis in a 32-year-old male who showed bilateral hippocampal lesions without preceding parotitis. Although it is rare, hippocampal involvement should be considered a CNS complication of mumps infection.
March 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28236164/evaluation-of-the-effects-of-the-combination-of-autologous-mesenchymal-stem-cells-and-platelet-rich-plasma-on-structural-bone-allograft-healing
#13
Chang-Goo Park, Min Wook Joo, Jinyoung Jeong, Yong-Koo Kang, Da-Reum Lee
In this study, we evaluated the efficacy of the combination of autologous mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) for enhancing structural allogenic bone graft healing in rabbits. For these experiments segmental bone defects (1.5-2 cm) were generated on femoral diaphysis of New Zealand white rabbits and reconstructed via structural allogenic bone grafting and additional intramedullary nail fixation. The structural allografts were subsequently wrapped with Gelfoam containing autologous MSCs and PRP, or PRP alone (control)...
February 24, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28221712/discovery-of-myh14-as-an-important-and-unique-deafness-gene-causing-prelingually-severe-autosomal-dominant-non-syndromic-hearing-loss
#14
Bong Jik Kim, Ah Reum Kim, Jin Hee Han, Chung Lee, Doo Yi Oh, Byung Yoon Choi
BACKGROUND: Pathogenic variants of MYH14 have been known to be associated-in either a syndromic or non-syndromic manner-with hearing loss. Interestingly, all reported cases to date of MYH14-related non-syndromic hearing loss with detailed phenotypes have demonstrated mild-to-moderate progressive hearing loss with postlingual onset. METHODS: In this study, targeted resequencing (TRS) of known deafness genes was performed to identify the causative variant in two multiplex families segregating AD inherited hearing loss...
February 21, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/28134035/estimating-the-economic-value-of-counselling-services-using-the-contingent-valuation-method
#15
A-Reum Kim, Sang Min Lee, Sunghee An
This study aimed to justify the use of the contingent valuation method to elicit the willingness to pay (WTP) for counselling services and to analyse the socio-demographic and psychological factors that influence WTP (through an increase in insurance premiums) for counselling services in South Korea. Regarding WTP for counselling services, the researchers asked 561 participants double-bounded dichotomous choice questions, which is one of the major estimation methods. Two survival analysis models were set up with their corresponding variables to investigate the factors affecting the WTP for an increase in insurance premiums to cover counselling services...
January 30, 2017: Psychotherapy Research: Journal of the Society for Psychotherapy Research
https://www.readbyqxmd.com/read/28118375/chlorin-e6-mediated-photodynamic-therapy-suppresses-p-acnes-induced-inflammatory-response-via-nf%C3%AE%C2%BAb-and-mapks-signaling-pathway
#16
Yoon-Young Wang, A-Reum Ryu, Solee Jin, Yu-Mi Jeon, Mi-Young Lee
Photodynamic therapy (PDT), consisting of photosensitizer, light, and oxygen has been used for the treatment of various diseases including cancers, microbial infections and skin disorders. In this study, we examined the anti-inflammatory effect of chlorin e6-mediated PDT in P. acnes-infected HaCaT cells using photosensitizer chlorin e6 (Ce6) and halogen light. The live and heat-killed P. acnes triggered an upregulation of inflammatory molecules such as iNOS, NO, and inflammatory cytokine in HaCaT cells and mouse model...
2017: PloS One
https://www.readbyqxmd.com/read/28112944/targeted-proteomics-predicts-a-sustained-complete-response-after-transarterial-chemoembolization-and-clinical-outcomes-in-patients-with-hepatocellular-carcinoma-a-prospective-cohort-study
#17
Su Jong Yu, Hyunsoo Kim, Hophil Min, Areum Sohn, Young Youn Cho, Jeong-Ju Yoo, Dong Hyeon Lee, Eun Ju Cho, Jeong-Hoon Lee, Jungsoo Gim, Taesung Park, Yoon Jun Kim, Chung Yong Kim, Jung-Hwan Yoon, Youngsoo Kim
This study was aimed to identify blood-based biomarkers to predict a sustained complete response (CR) after transarterial chemoembolization (TACE) using targeted proteomics. Consecutive patients with HCC who had undergone TACE were prospectively enrolled (training (n = 100) and validation set (n = 80)). Serum samples were obtained before and 6 months after TACE. Treatment responses were evaluated using the modified Response Evaluation Criteria in Solid Tumors (mRECIST). In the training set, the MRM-MS assay identified five marker candidate proteins (LRG1, APCS, BCHE, C7, and FCN3)...
January 30, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28112443/decreased-expression-of-vldlr-is-inversely-correlated-with-mir-200c-in-human-colorectal-cancer
#18
Bong-Kyu Kim, Hye-In Yoo, Ah-Reum Lee, Keonwoo Choi, Sungjoo Kim Yoon
Colorectal cancer (CRC) is one of the most common cancers and has a high rate of morbidity and mortality worldwide. Very-low-density-lipoprotein receptor (VLDLR), a member of the low-density-lipoprotein receptor (LDLR) superfamily, is a multifunctional receptor that regulates cellular signaling by binding numerous ligands. Several studies reported the altered expression of VLDLR and suggested that VLDLR may play a critical role in tumor development by affecting cell proliferation and metastasis. However, the function of VLDLR and regulation of its expression by miRNAs have not been investigated in CRC...
January 23, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28054670/ultra-sensitive-detection-of-kanamycin-for-food-safety-using-a-reduced-graphene-oxide-based-fluorescent-aptasensor
#19
Na-Reum Ha, In-Pil Jung, Im-Joung La, Ho-Sup Jung, Moon-Young Yoon
Overuse of antibiotics has caused serious problems, such as appearance of super bacteria, whose accumulation in the human body through the food chain is a concern. Kanamycin is a common antibiotic used to treat diverse infections; however, residual kanamycin can cause many side effects in humans. Thus, development of an ultra-sensitive, precise, and simple detection system for residual kanamycin in food products is urgently needed for food safety. In this study, we identified kanamycin-binding aptamers via a new screening method, and truncated variants were analyzed for optimization of the minimal sequence required for target binding...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28042093/expression-and-antigenicity-of-recombinant-human-respiratory-syncytial-virus-glycoproteins-having-different-affinity-tags
#20
Han Saem Lee, A-Reum Kim, Kisoon Kim, Wan-Ji Lee, Sung Soon Kim, You-Jin Kim
Human respiratory syncytial virus (HRSV) is a main cause of lower respiratory tract infections in infants and the elderly. Glycoprotein (G) is major antigen on the viral surface, and plays a key role for virus entry. Therefore, purification of the glycoprotein of HRSV is critical for the development of HRSV vaccine and serological diagnosis. In this study, we report the design and characterization of glycoprotein engineered rationally to enhance the protein solubility and to facilitate efficient purification...
April 2017: Protein Expression and Purification
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