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https://www.readbyqxmd.com/read/28641381/supraventricular-tachyarrhythmias-in-patients-with-a-persistent-left-superior-vena-cava
#1
Jongmin Hwang, Hyoung-Seob Park, Jun Kim, Jeong Su Kim, Jong Sung Park, Ki-Hun Kim, Myung Hwan Bae, Sang-Hee Lee, Young Soo Lee, Seongwook Han, Dae-Kyeong Kim, Tae-Joon Cha, Dong Gu Shin, Byung Chun Jung, Yoon-Nyun Kim
Aims: A persistent left superior vena cava (PLSVC) is the most common thoracic venous anomaly. This venous anomaly can impact the evaluation and treatment of supraventricular tachyarrhythmia (SVA). The aim of this study was to assess the proportion and characteristics of PLSVC in adult SVA patients. Methods and results: From July 2002 to July 2012, clinical and procedural data from databases of 10 cardiac electrophysiology laboratories in the Yeungnam region of the Republic of Korea were reviewed...
June 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28641365/ultrasonography-guided-14-gauge-core-biopsy-of-the-breast-results-of-7-years-of-experience
#2
Inha Jung, Min Jung Kim, Hee Jung Moon, Jung Hyun Yoon, Eun-Kyung Kim
Purpose: This study assessed the outcomes of ultrasound (US)-guided core needle biopsies (CNBs) of breast lesions with at least 2 years of follow-up to determine the false-negative rate and to evaluate the diagnostic accuracy of CNB. Methods: We retrospectively analyzed 13,254 consecutive US-guided 14-gauge CNBs for breast lesions. We excluded biopsies if non-malignant biopsy result was not confirmed by surgical excision or US-guided vacuum-assisted biopsy, or fewer than 2 years of follow-up data were available...
May 17, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28641119/maternal-progesterone-levels-are-modulated-by-maternal-bmi-and-predict-birth-weight-sex-specifically-in-human-pregnancies
#3
Anke Diemert, Janina Goletzke, Claus Barkmann, Robert Jung, Kurt Hecher, Petra Arck
OBJECTIVE: Successful pregnancy outcome is the result of a tailored adaptation of the maternal endocrine and immune system throughout gestation. We aimed to investigate if maternal endocrine, anthropometric and life style factors assessed longitudinally throughout pregnancy allow prediction of birth weight. STUDY DESIGN: Data on maternal factors and obstetrical characteristics from 220 pregnancies from a German prospective pregnancy cohort were analyzed using univariate and multivariate regression models...
June 3, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28641111/structural-insights-into-modulation-of-neurexin-neuroligin-trans-synaptic-adhesion-by-mdga1-neuroligin-2-complex
#4
Jung A Kim, Doyoun Kim, Seoung Youn Won, Kyung Ah Han, Dongseok Park, Eunju Cho, Nayoung Yun, Hyun Joo An, Ji Won Um, Eunjoon Kim, Jie-Oh Lee, Jaewon Ko, Ho Min Kim
Membrane-associated mucin domain-containing glycosylphosphatidylinositol anchor proteins (MDGAs) bind directly to neuroligin-1 (NL1) and neuroligin-2 (NL2), thereby respectively regulating excitatory and inhibitory synapse development. However, the mechanisms by which MDGAs modulate NL activity to specify development of the two synapse types remain unclear. Here, we determined the crystal structures of human NL2/MDGA1 Ig1-3 complex, revealing their stable 2:2 arrangement with three interaction interfaces. Cell-based assays using structure-guided, site-directed MDGA1 mutants showed that all three contact patches were required for the MDGA's negative regulation of NL2-mediated synaptogenic activity...
June 21, 2017: Neuron
https://www.readbyqxmd.com/read/28640993/locking-in-optimal-nanoscale-structure-induced-by-naphthalenediimide-based-polymeric-additive-enables-efficient-and-stable-inverted-polymer-solar-cells
#5
Kwang Hyun Park, Yujin An, Seungon Jung, Hyesung Park, Changduk Yang
Operational stability and high performance are the most critical issues that must be addressed in order to propel and advance the current polymer solar cell (PSC) technology to the next level such as manufacturing and mass production. Herein, we report a high power conversion efficiency (PCE) of 11.2% together with an excellent device stability in PTB7-Th:PC71BM-based PSCs in the inverted structure by introducing the n-type P(NDI2OD-T2) macromolecular additive (>75% PCE retention at high temperature up to 120 °C, >97% PCE retention after 6 months in inert conditions, >93% PCE retention after 2 months in air with encapsulation, and >80% PCE retention after 140 h in air without encapsulation)...
June 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28640959/the-deeper-self-an-expanded-view-of-consciousness
#6
Steve Paulson, Siri Hustvedt, Mark Solms, Sonu Shamdasani
As science continues to explore the mysteries of the unconscious, two critical questions remain. First, can unconscious impulses, desires, and feelings be willfully raised to the level of the conscious self?, and, if so, would the unveiling of unconscious mechanisms lead to genuine self-knowledge or empowerment? Second, can we methodically tap into the unconscious to gear ourselves along more creative lines? If the unconscious is a source of intuitive and creative inspiration, how might a more expansive understanding of consciousness help us to flourish? How can we harness the intuitive parts of ourselves to think "outside the box," transcending the limitations of preconceived categories? And along those same lines, how would an expanded view of the unconscious frame our spiritual experiences or offer spiritual nourishment? Writer Siri Hustvedt, historian of psychology Sonu Shamdasani, and neuropsychologist Mark Solms will tackle everything from noetic experiences and the role of intuition to the phenomenon of peak experience and Jung's "collective unconscious...
June 22, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28640924/correction-accuracy-of-the-fluorescence-activated-cell-sorting-assay-for-the-aquaporin-4-antibody-aqp4-ab-comparison-with-the-commercial-aqp4-ab-assay-kit
#7
Jiwon Yang, Sung Min Kim, Yoo-Jin Kim, So Young Cheon, Boram Kim, Kyeong Cheon Jung, Kyung Seok Park
[This corrects the article DOI: 10.1371/journal.pone.0162900.].
2017: PloS One
https://www.readbyqxmd.com/read/28640693/evaluation-of-screening-us-detected-breast-masses-by-combined-use-of-elastography-and-color-doppler-us-with-b-mode-us-in-women-with-dense-breasts-a-multicenter-prospective-study
#8
Su Hyun Lee, Jin Chung, Hye Young Choi, Seon Hyeong Choi, Eun Bi Ryu, Kyung Hee Ko, Hye Ryoung Koo, Jeong Seon Park, Ann Yi, Ji Hyun Youk, Eun Ju Son, A Jung Chu, Jung Min Chang, Nariya Cho, Myoung-Jin Jang, Shin Ho Kook, Eun Suk Cha, Woo Kyung Moon
Purpose To investigate the value of the combined use of elastography and color Doppler ultrasonography (US) with B-mode US for evaluation of screening US-detected breast masses in women with dense breasts. Materials and Methods This prospective, multicenter study included asymptomatic women with dense breasts who were referred for screening US between November 2013 and December 2014. Eligible women had a newly detected breast mass at conventional B-mode US screening, for which elastography and color Doppler US were performed...
June 21, 2017: Radiology
https://www.readbyqxmd.com/read/28637329/health-benefits-associated-with-three-helping-behaviors-evidence-for-incident-cardiovascular-disease
#9
Jeffrey A Burr, Saehwang Han, Hyo Jung Lee, Jane L Tavares, Jan E Mutchler
Objective: The purpose of this study was to investigate the association between three helping behaviors and incident cardiovascular disease (CVD; heart attack, stroke; fatal and nonfatal), with an exploration of gender differences. The study is framed within the caregiving system model. Helping others is argued to be an evolved characteristic of humans that yields beneficial health effects. Methods: Data were taken from the 2004-2014 waves of the Health and Retirement Study...
June 16, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28637196/chronological-change-of-right-ventricle-by-chronic-intermittent-hypoxia-in-mice
#10
Hyung-Ju Cho, Woon Heo, Jung Woo Han, Yong Hyuk Lee, Jin Myung Park, Min Jung Kang, Joo-Heon Yoon, Min Goo Lee, Chang-Hoon Kim, Joo Young Kim
Study Objective: No studies have investigated sequential changes in the heart on MRI, along with observation of functional lung phenotypes and genetics, over the duration of chronic intermittent hypoxia (CIH). We investigated chronological changes in heart and lung phenotypes after CIH using a mouse model to provide new insights into the pathophysiology of sleep apnea-induced cardiovascular disease. Methods: C57BL/6J adult male mice were randomized to 4 weeks or 8 weeks of CIH...
June 20, 2017: Sleep
https://www.readbyqxmd.com/read/28637181/crosstalk-between-histone-modifications-indicates-that-inhibition-of-arginine-methyltransferase-carm1-activity-reverses-hiv-latency
#11
Zheng Zhang, Bryan C Nikolai, Leah A Gates, Sung Yun Jung, Edward B Siwak, Bin He, Andrew P Rice, Bert W O'Malley, Qin Feng
In eukaryotic cells, the gene expression status is strictly controlled by epigenetic modifications on chromatin. The repressive status of chromatin largely contributes to HIV latency. Studies have shown that modification of histone H3K27 acts as a key molecular switch for activation or suppression of many cellular genes. In this study, we found that K27-acetylated histone H3 specifically recruited Super Elongation Complex (SEC), the transcriptional elongation complex essential for HIV-1 long terminal repeat (LTR)-mediated and general cellular transcription...
June 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28637064/safety-and-efficacy-of-glycopyrrolate-as-a-premedication-for-endoscopic-submucosal-dissection-a-randomized-double-blind-placebo-controlled-study
#12
Eui Joo Kim, Min Young Um, Kyoung Oh Kim, Jung Ho Kim, Su Young Kim, Dong Kyun Park, Kwang An Kwon, Jun Won Chung, Yoon Jae Kim
Background and study aims Anticholinergic premedication has not been validated for endoscopic submucosal dissection (ESD). In this randomized, double-blind, placebo-controlled trial, we investigated the efficacy and safety of glycopyrrolate as a premedication for ESD. Methods A total of 196 patients undergoing ESD at a single tertiary medical center between December 2014 and February 2016 were randomly allocated to receive one of the following two premedications: glycopyrrolate (0.004 mg/kg intramuscularly [IM]) or placebo (2...
June 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28637007/c-fos-dependent-mir-22-targets-mdc1-and-regulates-dna-repair-in-terminally-differentiated-cells
#13
Jung-Hee Lee, Seon-Joo Park, Seok Won Kim, Gurusamy Hariharasudhan, Sung-Mi Jung, Semo Jun, Jeongsik Yong, Ho Jin You
Terminally differentiated cells have a reduced capacity to repair double-stranded breaks (DSB) in DNA, however, the underlying molecular mechanism remains unclear. Here, we show that miR-22 is upregulated during postmitotic differentiation of human breast MCF-7 cells, hematopoietic HL60 and K562 cells. Increased expression of miR-22 in differentiated cells was associated with decreased expression of MDC1, a protein that plays a key role in the response to DSBs. This downregulation of MDC1 was accompanied by reduced DSB repair, impaired recruitment of the protein to the site of DNA damage following IR...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636985/changes-in-programmed-death-ligand-1-expression-during-cisplatin-treatment-in-patients-with-head-and-neck-squamous-cell-carcinoma
#14
Chan-Young Ock, Sehui Kim, Bhumsuk Keam, Soyeon Kim, Yong-Oon Ahn, Eun-Jae Chung, Jin-Ho Kim, Tae Min Kim, Seong Keun Kwon, Yoon Kyung Jeon, Kyeong Chun Jung, Dong-Wan Kim, Hong-Gyun Wu, Myung-Whun Sung, Dae Seog Heo
Programmed death-ligand 1 (PD-L1) expression is regarded as a predictive marker for anti-PD-1/PD-L1 therapy. The purpose of study was to explore the changes in PD-L1 expression in head and neck squamous cell carcinoma (HNSCC) during treatment. Paired HNSCC tissues prior to and after cisplatin-based treatment were evaluated to determine PD-L1 protein expression by immunohistochemistry. Among the 35 HNSCC patient samples, PD-L1 expression status changed after treatment in 37.1% (13/35) of samples. Among the 13 patients whose baseline PD-L1 was negative, PD-L1 expression was increased in 9 cases (69...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636953/dicer-deficiency-differentially-impacts-microglia-of-the-developing-and-adult-brain
#15
Diana Varol, Alexander Mildner, Thomas Blank, Anat Shemer, Neta Barashi, Simon Yona, Eyal David, Sigalit Boura-Halfon, Yifat Segal-Hayoun, Louise Chappell-Maor, Hadas Keren-Shaul, Dena Leshkowitz, Eran Hornstein, Martin Fuhrmann, Ido Amit, Nicola Maggio, Marco Prinz, Steffen Jung
Microglia seed the embryonic neuro-epithelium, expand and actively sculpt neuronal circuits in the developing central nervous system, but eventually adopt relative quiescence and ramified morphology in the adult. Here, we probed the impact of post-transcriptional control by microRNAs (miRNAs) on microglial performance during development and adulthood by generating mice lacking microglial Dicer expression at these distinct stages. Conditional Dicer ablation in adult microglia revealed that miRNAs were required to limit microglial responses to challenge...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28636885/differential-changes-in-the-pharmacokinetics-of-statins-in-collagen-induced-arthritis-rats
#16
Chun-Han Lin, Ke-Wei Hsu, Chia-Hao Chen, Yow-Shieng Uang, Chun-Jung Lin
The elevated systemic levels of cytokines in rheumatoid arthritis (RA) can change the expression of metabolic enzymes and transporters. Given that statins are lipid-lowering agents frequently used in RA patients with concurrent cardiovascular diseases, the objective of the present study was to investigate the impacts of RA on the pharmacokinetics of statins of different disposition properties in rats with collagen-induced arthritis (CIA). The expression of metabolic enzymes and transporters in tissues of CIA rats were analyzed by RT-qPCR...
June 18, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28636884/major-achievements-of-evidence-based-traditional-chinese-medicine-in-treating-major-diseases
#17
REVIEW
Jung Chao, Yuntao Dai, Robert Verpoorte, Wing Lam, Yung-Chi Cheng, Li-Heng Pao, Wei Zhang, Shilin Chen
A long history of use and extensive documentation of the clinical practices of traditional Chinese medicine resulted in a considerable number of classical preparations, which are still widely used. This heritage of our ancestors provides a unique resource for drug discovery. Already, a number of important drugs have been developed from traditional medicines, which in fact form the core of Western pharmacotherapy. Therefore, this article discusses the differences in drug development between traditional medicine and Western medicine...
June 18, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28636814/arsenic-compromises-both-p97-and-proteasome-functions
#18
Joseph Tillotson, Christopher J Zerio, Bryan Harder, Andrew Ambrose, Kevin S Jung, MinJin Kang, Donna D Zhang, Eli Chapman
Exposure to arsenic is a worldwide problem that affects more than 200 million people. The underlying mechanisms of arsenic toxicity have been difficult to ascertain due to arsenic's pleotropic effects. A number of recent investigations have shown arsenic can compromise protein quality control through the ubiquitin proteasome system (UPS) or the endoplasmic reticulum associated protein degradation (ERAD) pathway. In this report, a link between arsenic and protein quality control is reported. Biochemical and cellular data demonstrate a misregulation of the ATPase cycle of the ATPase associated with various cellular activities (AAA+) chaperone, p97...
June 21, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28636759/rosacea-and-its-association-with-enteral-microbiota-in-korean-females
#19
Jae-Hui Nam, Yeojun Yun, Han-Saem Kim, Han-Na Kim, Ho Joo Jung, Yoosoo Chang, Seungho Ryu, Hocheol Shin, Hyung-Lae Kim, Won-Serk Kim
BACKGROUND: Rosacea is a chronic inflammatory dermatosis affecting the face and eyes. An association between systemic comorbidities and rosacea has been reported, but the link to enteral microbiota is uncertain. OBJECTIVES: We aimed to investigate the link between rosacea and enteral microbiota. METHODS: A cross-sectional study was performed in a sample of Korean women who participated in a health checkup program at the Kangbuk Samsung Hospital Health Screening Center between 23 June 2014 and 5 September 2014...
June 21, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28636624/metabolically-healthy-obesity-is-associated-with-higher-prevalence-of-colorectal-adenoma
#20
Dong Hyun Sinn, Yang Won Min, Hee Jung Son, Poong-Lyul Rhee, Seung Woon Paik, Sung Noh Hong, Geum-Youn Gwak
BACKGROUND: The risk of colorectal adenoma (CRA), an important precursor of colorectal cancer, is largely unknown among obese individuals without obesity-related metabolic abnormalities, a condition described as metabolically-healthy obese (MHO). The aim of this study was to examine the association among metabolic status, the different categories of body mass index (BMI), and CRA in a large cohort of adults. METHODS: We analyzed the association among metabolic status, BMI categories and CRA in asymptomatic adults who underwent a first-time colonoscopy as part of the comprehensive health check-up program at the Health Promotion Center of Samsung Medical Center, from January 2005 to December 2012...
2017: PloS One
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