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https://www.readbyqxmd.com/read/27932495/modulations-of-sir-nucleosome-interactions-of-reconstructed-yeast-silent-pre-heterochromatin-by-o-acetyl-adp-ribose-and-magnesium
#1
Shu-Yun Tung, Sue-Hong Wang, Sue-Ping Lee, Shu-Ping Tsai, Hsiao-Hsuian Shen, Feng-Jung Chen, Yu-Yi Wu, Sheng-Pin Hsiao, Gunn-Guang Liou
To study epigenetic inheritance, yeast silent heterochromatin provides an excellent model. Previously, we developed an in vitro assembly system to demonstrate the formation of filament structures with requirements that mirror yeast epigenetic gene silencing in vivo However, the properties of these filaments have not been investigated in detail. Here, we show that the assembly system requires Sir2, Sir3, Sir4, nucleosomes and O-acetyl-ADP-ribose. We also demonstrate that all Sir proteins and nucleosomes are components of these filaments to prove they are SIR-nucleosome filaments...
December 8, 2016: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/27931260/prediction-of-breast-cancer-risk-based-on-common-genetic-variants-in-women-of-east-asian-ancestry
#2
Wanqing Wen, Xiao-Ou Shu, Xingyi Guo, Qiuyin Cai, Jirong Long, Manjeet K Bolla, Kyriaki Michailidou, Joe Dennis, Qin Wang, Yu-Tang Gao, Ying Zheng, Alison M Dunning, Montserrat García-Closas, Paul Brennan, Shou-Tung Chen, Ji-Yeob Choi, Mikael Hartman, Hidemi Ito, Artitaya Lophatananon, Keitaro Matsuo, Hui Miao, Kenneth Muir, Suleeporn Sangrajrang, Chen-Yang Shen, Soo H Teo, Chiu-Chen Tseng, Anna H Wu, Cheng Har Yip, Jacques Simard, Paul D P Pharoah, Per Hall, Daehee Kang, Yongbing Xiang, Douglas F Easton, Wei Zheng
BACKGROUND: Approximately 100 common breast cancer susceptibility alleles have been identified in genome-wide association studies (GWAS). The utility of these variants in breast cancer risk prediction models has not been evaluated adequately in women of Asian ancestry. METHODS: We evaluated 88 breast cancer risk variants that were identified previously by GWAS in 11,760 cases and 11,612 controls of Asian ancestry. SNPs confirmed to be associated with breast cancer risk in Asian women were used to construct a polygenic risk score (PRS)...
December 8, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27930702/a-survival-scoring-system-for-non-small-cell-lung-cancer-patients-with-de-novo-bone-metastases
#3
Yu-Mu Chen, Ying-Tang Fang, Chien-Hao Lai, Kun-Ming Rau, Cheng-Hua Huang, Huang-Chih Chang, Tung-Ying Chao, Chia-Cheng Tseng, Wen-Feng Fang, Chin-Chou Wang, Yung-Che Chen, Yu-Hsiu Chung, Yi-Hsi Wang, Mao-Chang Su, Shih-Feng Liu, Kuo-Tung Huang, Hung-Chen Chen, Ya-Chun Chang, Yu-Ping Chang, Meng-Chih Lin
In the pre-tyrosine kinase inhibitors (TKIs) era, non-small cell lung cancer (NSCLC) patients with de novo bone metastases had a worse prognosis than those without. However, whether epidermal growth factor receptor (EGFR)-TKIs affect the outcomes of EGFR mutant NSCLC patients with de novo bone metastases has not been well studied thus far. We retrospectively studied the effect of EGFR mutation status and first-line EGFR-TKIs on patient outcomes and created a survival scoring system for NSCLC patients with de novo bone metastases...
2016: PloS One
https://www.readbyqxmd.com/read/27929444/using-light-microscopy-and-liquid-chromatography-tandem-mass-spectrometry-for-qualitative-and-quantitative-control-of-a-combined-three-herb-formulation-in-different-preparations
#4
Tun-Pin Hsueh, Wan-Ling Lin, Tung-Hu Tsai
Artemisia capillaries Thunb, Gardenia jasminoides Ellis, and Rheum officinale Baill have been combined to treat jaundice for thousands of years. Studies have revealed that these herbs induce anti-hepatic fibrosis and anti-hepatic apoptosis and alleviate hepatic oxidative stress. This study aims to determine the quality and quantity of an herbal formulation (Chinese name: Yin-Chen-Hao-Tang) using physical and chemical examinations. Physical examination of Yin-Chen-Hao-Tang in pharmaceutical herbal products, raw fiber powders, and decoction preparations was performed using Congo red and iodine-potassium staining...
December 6, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27929437/the-traditional-chinese-medicine-dangguibuxue-tang-sensitizes-colorectal-cancer-cells-to-chemoradiotherapy
#5
Shun-Ting Chen, Tzung-Yan Lee, Tung-Hu Tsai, Yin-Cheng Lin, Chin-Ping Lin, Hui-Ru Shieh, Ming-Ling Hsu, Chih-Wen Chi, Ming-Cheng Lee, Hen-Hong Chang, Yu-Jen Chen
Chemotherapy is an important treatment modality for colon cancer, and concurrent chemoradiation therapy (CCRT) is the preferred treatment route for patients with stage II and III rectal cancer. We examined whether DangguiBuxue Tang (DBT), a traditional Chinese herbal extract, sensitizes colorectal cancer cells to anticancer treatments. The polysaccharide-depleted fraction of DBT (DBT-PD) contains greater amounts of astragaloside IV (312.626 µg/g) and ferulic acid (1.404 µg/g) than does the original formula...
December 6, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27928698/urban-and-education-disparity-for-autism-spectrum-disorders-in-taiwan-birth-cohort-study
#6
For-Wey Lung, Tung-Liang Chiang, Shio-Jean Lin, Bih-Ching Shu
This study aimed to determine the optimal cut-off for autism spectrum disorder (ASD) screening in 66-month-old children, and to explore the distribution of ASD screening and diagnosis in Taiwan. The Taiwan Birth Cohort Study dataset was used (N = 20,095). The Modified Checklist for Autism in Toddlers (M-CHAT) cut-off point of 13/14 was considered optimal for screening of children at 66 months. More children were diagnosed with ASD in urban areas. Parents of children diagnosed with ASD had a higher level of education, but parents of children with a lower level of education were screened as being at higher risk of ASD...
December 7, 2016: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/27928636/effects-of-lanthanum-carbonate-and-calcium-carbonate-on-fibroblast-growth-factor-23-and-hepcidin-levels-in-chronic-hemodialysis-patients
#7
Yu-Ming Chang, Shih-Ching Tsai, Chih-Chung Shiao, Hung-Hsiang Liou, Chuan-Lan Yang, Nai-Yu Tung, Kua-Sui Hsu, I-Ling Chen, Mei-Chyn Liu, Jsun-Liang Kao, Rong-Na Jhen, Ya-Ting Huang
BACKGROUND: Phosphate binders have an impact on fibroblast growth factor 23 (FGF23); however, the effect of phosphate binders on serum hepcidin has not been explored. We conducted a 24-week multicenter randomized controlled trial to investigate the effects of lanthanum carbonate or calcium carbonate monotherapy on serum phosphate, FGF23, and hepcidin levels in chronic hemodialysis patients. METHODS: Forty-six patients were recruited, and daily dietary phosphorus was controlled between 600-800 mg...
December 7, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27927756/surrogate-end-points-for-overall-survival-in-loco-regionally-advanced-nasopharyngeal-carcinoma-an-individual-patient-data-meta-analysis
#8
Federico Rotolo, Jean-Pierre Pignon, Jean Bourhis, Sophie Marguet, Julie Leclercq, Wai Tong Ng, Jun Ma, Anthony T C Chan, Pei-Yu Huang, Guopei Zhu, Daniel T T Chua, Yong Chen, Hai-Qiang Mai, Dora L W Kwong, Yoke Lim Soong, James Moon, Yuk Tung, Kwan-Hwa Chi, George Fountzilas, Li Zhang, Edwin Pun Hui, Anne W M Lee, Pierre Blanchard, Stefan Michiels
BACKGROUND: Our objective was to evaluate progression-free survival (PFS) and distant metastasis-free survival (DMFS) as surrogate end points for overall survival (OS) in randomized trials of chemotherapy in loco-regionally advanced nasopharyngeal carcinomas (NPCs). METHODS: Individual patient data were obtained from 19 trials of the updated Meta-Analysis of Chemotherapy in Nasopharyngeal Carcinoma (MAC-NPC) plus one additional trial (total = 5144 patients). Surrogacy was evaluated at the individual level using a rank correlation coefficient ρ and at the trial level using a correlation coefficient R(2) between treatment effects on the surrogate end point and OS...
April 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/27927223/mitochondrial-co-chaperone-protein-tid1-is-required-for-energy-homeostasis-during-skeletal-myogenesis
#9
Li-Hao Cheng, Kai-Feng Hung, Te-Chang Lee, Chih-Yang Huang, Wen-Ting Chiu, Jeng-Fan Lo, Tung-Fu Huang
BACKGROUND: Tid1 is a mitochondrial co-chaperone protein and its transcript is abundantly expressed in skeletal muscle tissues. However, the physiological function of Tid1 during skeletal myogenesis remains unclear. METHODS: In vitro induced differentiation assay of mouse myoblast C2C12 cells was applied to examine the physiological role of Tid1 during skeletal myogenesis. In addition, transgenic mice with muscle specific (HSA-Cre) Tid1 deletion were established and examined to determine the physiological function of Tid1 during skeletal muscle development in vivo...
December 7, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27926982/trpv4-channels-mediate-na-k-cl-co-transporter-induced-brain-edema-after-traumatic-brain-injury
#10
Kwok-Tung Lu, Tai-Chun Huang, Ya-Hsin Tsai, Yi-Ling Yang
Na(+) -K(+) -2Cl(-) co-transporter (NKCC1) plays an important role in traumatic brain injury (TBI)-induced brain edema via the mitogen-activated protein kinases (MAPK) cascade. The transient receptor potential vanilloid type 4 (TRPV4) channel participates in neurogenic inflammation, pain transmission and edema. In this study, we investigated the relationship between NKCC1 and TRPV4 and the related signaling pathways in TBI-induced brain edema and neuronal damage. TBI was induced by the calibrated weight-drop device...
December 7, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27924857/electrohydrodynamic-assisted-assembly-of-hierarchically-structured-3d-crumpled-nanostructures-for-efficient-solar-conversions
#11
Hidetaka Ishihara, Yen-Chang Chen, Nicholas De Marco, Oliver Lin, Chih-Meng Huang, Vipawee Limsakoune, Yi-Chia Chou, Yang Yang, Vincent Tung
The tantalizing prospect of harnessing the unique properties of graphene crumpled nanostructures continues to fuel tremendous interest in energy storage and harvesting applications. However, the paper ball-like, hard texture, and closed-sphere morphology of current 3D graphitic nanostructure production not only constricts the conductive pathways but also limits the accessible surface area. Here, we report new insights into electrohydrodynamically-generated droplets as colloidal nanoreactors in that the stimuli-responsive nature of reduced graphene oxide can lead to the formation of crumpled nanostructures with a combination of open structures and doubly curved, saddle-shaped edges...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27923805/prognostic-impact-of-the-timing-of-recurrence-of-infarct-related-ventricular-tachycardia-after-catheter-ablation
#12
Konstantinos C Siontis, Hyungjin Myra Kim, William G Stevenson, Akira Fujii, Paolo Della Bella, Pasquale Vergara, Kalyanam Shivkumar, Roderick Tung, Duc H Do, Emile G Daoud, Toshimasa Okabe, Katja Zeppenfeld, Marta de Riva Silva, Gerhard Hindricks, Arash Arya, Alexander Weber, Karl-Heinz Kuck, Andreas Metzner, Shibu Mathew, Johannes Riedl, Miki Yokokawa, Krit Jongnarangsin, Rakesh Latchamsetty, Fred Morady, Frank M Bogun
BACKGROUND: Recurrence of ventricular tachycardia (VT) after ablation in patients with previous myocardial infarction is associated with adverse prognosis. However, the impact of the timing of VT recurrence on outcomes is unclear. METHODS AND RESULTS: We analyzed data from a multicenter collaborative database of patients who underwent catheter ablation for infarct-related VT. Multivariable Cox regression analyses investigated the effect of the timing of VT recurrence on the composite outcome of death or heart transplantation using VT recurrence as a time-varying covariate...
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27921075/longitudinal-monitoring-of-reconstructed-activity-concentration-on-a-clinical-time-of-flight-pet-ct-scanner
#13
Lawrence R MacDonald, Amy E Perkins, Chi-Hua Tung
Positron emission tomography (PET) images are potential quantitative biomarkers. Understanding long-term (months/years) biomarker variability is important for establishing confidence intervals on studies using such biomarkers over these time frames. PET biomarkers are derived from activity concentration ([Formula: see text]) extracted from PET images. Over 30 months, we measured the stability of decay-normalized counts ([Formula: see text]) and [Formula: see text] by scanning the same 4.5-cm-diameter Ge-68 cylinder weekly, the same Na-22 point source daily, and a refilled 20-cm F-18 cylinder phantom monthly on a clinical TOF-PET/CT scanner...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27920950/on-the-intrinsic-sterility-of-3d-printing
#14
Russell Y Neches, Kaitlin J Flynn, Luis Zaman, Emily Tung, Nicholas Pudlo
3D printers that build objects using extruded thermoplastic are quickly becoming commonplace tools in laboratories. We demonstrate that with appropriate handling, these devices are capable of producing sterile components from a non-sterile feedstock of thermoplastic without any treatment after fabrication. The fabrication process itself results in sterilization of the material. The resulting 3D printed components are suitable for a wide variety of applications, including experiments with bacteria and cell culture...
2016: PeerJ
https://www.readbyqxmd.com/read/27920351/effects-of-pediatric-anticipatory-guidance-on-mothers-of-young-children
#15
Hui-Chin Hsu, Shih-Yu Lee, Chin-Man Lai, Wan-Ling Tsai, Hsiao-Tung Chiu
Provision of anticipatory guidance to parents during well-child visits is a defining component of pediatric primary care. Using nationally representative data from the 2000 U.S. National Survey of Early Childhood Health, this study addressed the questions of whether, how, and what mothers of children below age 3 with different ethnic/racial background could benefit from anticipatory guidance. Structural equation modeling results showed that across ethnic/racial groups, guidance was directly associated with decreased maternal stress and directly and indirectly associated with effective parenting practices in child development, discipline, and safety...
December 5, 2016: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/27918720/what-is-the-best-treatment-of-locally-advanced-nasopharyngeal-carcinoma-an-individual-patient-data-network-meta-analysis
#16
Laureen Ribassin-Majed, Sophie Marguet, Anne W M Lee, Wai Tong Ng, Jun Ma, Anthony T C Chan, Pei-Yu Huang, Guopei Zhu, Daniel T T Chua, Yong Chen, Hai-Qiang Mai, Dora L W Kwong, Shie-Lee Cheah, James Moon, Yuk Tung, Kwan-Hwa Chi, George Fountzilas, Jean Bourhis, Jean Pierre Pignon, Pierre Blanchard
Purpose The role of adjuvant chemotherapy (AC) or induction chemotherapy (IC) in the treatment of locally advanced nasopharyngeal carcinoma is controversial. The individual patient data from the Meta-Analysis of Chemotherapy in Nasopharynx Carcinoma database were used to compare all available treatments. Methods All randomized trials of radiotherapy (RT) with or without chemotherapy in nonmetastatic nasopharyngeal carcinoma were considered. Overall, 20 trials and 5,144 patients were included. Treatments were grouped into seven categories: RT alone (RT), IC followed by RT (IC-RT), RT followed by AC (RT-AC), IC followed by RT followed by AC (IC-RT-AC), concomitant chemoradiotherapy (CRT), IC followed by CRT (IC-CRT), and CRT followed by AC (CRT-AC)...
December 5, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27918536/genome-wide-analyses-for-personality-traits-identify-six-genomic-loci-and-show-correlations-with-psychiatric-disorders
#17
Min-Tzu Lo, David A Hinds, Joyce Y Tung, Carol Franz, Chun-Chieh Fan, Yunpeng Wang, Olav B Smeland, Andrew Schork, Dominic Holland, Karolina Kauppi, Nilotpal Sanyal, Valentina Escott-Price, Daniel J Smith, Michael O'Donovan, Hreinn Stefansson, Gyda Bjornsdottir, Thorgeir E Thorgeirsson, Kari Stefansson, Linda K McEvoy, Anders M Dale, Ole A Andreassen, Chi-Hua Chen
Personality is influenced by genetic and environmental factors and associated with mental health. However, the underlying genetic determinants are largely unknown. We identified six genetic loci, including five novel loci, significantly associated with personality traits in a meta-analysis of genome-wide association studies (N = 123,132-260,861). Of these genome-wide significant loci, extraversion was associated with variants in WSCD2 and near PCDH15, and neuroticism with variants on chromosome 8p23.1 and in L3MBTL2...
December 5, 2016: Nature Genetics
https://www.readbyqxmd.com/read/27918476/antenatal-dexamethasone-exposure-in-preterm-infants-is-associated-with-allergic-diseases-and-the-mental-development-index-in-children
#18
Wan-Ning Tseng, Chih-Cheng Chen, Hong-Ren Yu, Li-Tung Huang, Ho-Chang Kuo
Background: Antenatal steroid administration may benefit fetal lung maturity in preterm infants. Although some studies have shown that this treatment may increase asthma in childhood, the correlation between antenatal dexamethasone exposure and allergic diseases remains unclear. The purpose of this study is to investigate the association between antenatal dexamethasone and T cell expression in childhood allergic diseases. Methods: We recruited a cohort of preterm infants born at Kaohsiung Chang Gung Memorial Hospital between 2007 and 2010 with a gestational age of less than 35 weeks and body weight at birth of less than 1500 g...
December 3, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27916924/divergent-expression-patterns-in-two-vernicia-species-revealed-the-potential-role-of-the-hub-gene-vmap2-erf036-in-resistance-to-fusarium-oxysporum-in-vernicia-montana
#19
Qiyan Zhang, Ming Gao, Liwen Wu, Yangdong Wang, Yicun Chen
Tung oil tree (Vernicia fordii) is a promising industrial oil crop; however, this tree is highly susceptible to Fusarium wilt disease. Conversely, Vernicia montana is resistant to the pathogen. The APETALA2/ethylene-responsive element binding factor (AP2/ERF) transcription factor superfamily has been reported to play a significant role in resistance to Fusarium oxysporum. In this study, comprehensive analysis identified 75 and 81 putative Vf/VmAP2/ERF transcription factor-encoding genes in V. fordii and V. montana, respectively, which were divided into AP2, ERF, related to ABI3 and VP1 (RAV) and Soloist families...
December 1, 2016: Genes
https://www.readbyqxmd.com/read/27916590/retrospective-cohort-study-examining-reduced-intensity-and-duration-of-anticoagulant-and-antiplatelet-therapy-following-left-atrial-appendage-occlusion-with-the-watchman-device
#20
Matthew K Tung, Satish Ramkumar, James D Cameron, Benjamin Pang, Nitesh Nerlekar, Emily Kotschet, Jeffrey Alison
BACKGROUND: Anticoagulant and antiplatelet therapy are recommended following WATCHMAN implantation (45 days and 6 months) to reduce the risk of embolic events. These patients are often also at high risk of recurrent bleeding complications. We aimed to assess the safety of reduced duration of treatment with anticoagulant and antiplatelet therapy in the early post implant period. METHODS: This was a retrospective cohort study assessing the duration of antiplatelet and anticoagulant therapy in 47 consecutive patients following WATCHMAN implant...
November 15, 2016: Heart, Lung & Circulation
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