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https://www.readbyqxmd.com/read/28346710/the-arabidopsis-thiamin-deficient-mutant-pale-green1-lacks-thiamin-monophosphate-phosphatase-of-the-vitamin-b1-biosynthesis-pathway
#1
Wei-Yu Hsieh, Jo-Chien Liao, Hsin-Tzu Wang, Tzu-Huan Hung, Ching-Chih Tseng, Tsui-Yun Chung, Ming-Hsiun Hsieh
Thiamin diphosphate (TPP, vitamin B1) is an essential coenzyme present in all organisms. Animals obtain TPP from their diets, but plants synthesize TPP de novo. We isolated and characterized an Arabidopsis pale green1 (pale1) mutant that contained higher concentrations of thiamin monophosphate (TMP) and less thiamin and TPP than the wild type. Supplementation with thiamin, but not the thiazole and pyrimidine precursors, rescued the mutant phenotype, indicating that the pale1 mutant is a thiamin-deficient mutant...
March 27, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28346590/implementation-and-evaluation-of-a-large-scale-teleretinal-diabetic-retinopathy-screening-program-in-the-los-angeles-county-department-of-health-services
#2
Lauren P Daskivich, Carolina Vasquez, Carlos Martinez, Chi-Hong Tseng, Carol M Mangione
Importance: Diabetic retinopathy (DR) is the leading cause of blindness in adults of working age in the United States. In the Los Angeles County safety net, a nonvertically integrated system serving underinsured and uninsured patients, the prevalence of DR is approximately 50%, and owing to limited specialty care resources, the average wait times for screening for DR have been 8 months or more. Objective: To determine whether a primary care-based teleretinal DR screening (TDRS) program reduces wait times for screening and improves timeliness of needed care in the Los Angeles County safety net...
March 27, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28346411/the-cold-induced-lipokine-12-13-dihome-promotes-fatty-acid-transport-into-brown-adipose-tissue
#3
Matthew D Lynes, Luiz O Leiria, Morten Lundh, Alexander Bartelt, Farnaz Shamsi, Tian Lian Huang, Hirokazu Takahashi, Michael F Hirshman, Christian Schlein, Alexandra Lee, Lisa A Baer, Francis J May, Fei Gao, Niven R Narain, Emily Y Chen, Michael A Kiebish, Aaron M Cypess, Matthias Blüher, Laurie J Goodyear, Gökhan S Hotamisligil, Kristin I Stanford, Yu-Hua Tseng
Brown adipose tissue (BAT) and beige adipose tissue combust fuels for heat production in adult humans, and so constitute an appealing target for the treatment of metabolic disorders such as obesity, diabetes and hyperlipidemia. Cold exposure can enhance energy expenditure by activating BAT, and it has been shown to improve nutrient metabolism. These therapies, however, are time consuming and uncomfortable, demonstrating the need for pharmacological interventions. Recently, lipids have been identified that are released from tissues and act locally or systemically to promote insulin sensitivity and glucose tolerance; as a class, these lipids are referred to as 'lipokines'...
March 27, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28345748/risk-perception-and-perceived-self-efficacy-of-deaf-and-hard-of-hearing-seniors-and-young-adults-in-emergencies
#4
Alina Engelman, Susan L Ivey, Winston Tseng, Linda Neuhauser
OBJECTIVES: The authors explored the factors influencing risk perception and perceived self-efficacy before and during an emergency for deaf and hard-of-hearing (Deaf/HH) seniors and young adults. METHODS: The authors collected demographic survey data and conducted four focus groups with 38 Deaf/HH residents of the San Francisco Bay Area; two groups were with young adults (ages 18-35), including one group of college students and one group of young professionals, and two were with older adults (ages 50-90)...
January 2017: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28344416/one-year-outcomes-of-acute-decompensated-systolic-heart-failure-in-taiwan-lessons-from-tsoc-hfref-registry
#5
Hung-Yu Chang, Chun-Chieh Wang, Yen-Wen Wu, Pao-Hsien Chu, Chih-Cheng Wu, Chih-Hsin Hsu, Ming-Shien Wen, Wen-Chol Voon, Wei-Shiang Lin, Jin-Long Huang, Shyh-Ming Chen, Ning-I Yang, Heng-Chia Chang, Kuan-Cheng Chang, Shih-Hsien Sung, Kou-Gi Shyu, Jiunn-Lee Lin, Guang-Yuan Mar, Kuei-Chuan Chan, Jen-Yuan Kuo, Ji-Hung Wang, Zhih-Cherng Chen, Wei-Kung Tseng, Wen-Jin Cherng, Wei-Hsian Yin
BACKGROUND: Heart failure (HF) is a global health problem. The Taiwan Society of Cardiology-Heart Failure with reduced Ejection Fraction (TSOC-HFrEF) registry was a multicenter, observational survey of patients admitted with HFrEF in Taiwan. The aim of this study was to report the one-year outcome in this large-cohort of hospitalized patients presenting with acute decompensated HFrEF. METHODS: Patients hospitalized for acute HFrEF were recruited in 21 hospitals in Taiwan...
March 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/28343893/local-hemostatic-matrix-for-endoscope-assisted-removal-of-intracerebral-hemorrhage-is-safe-and-effective
#6
Hui-Tzung Luh, Abel Po-Hao Huang, Shih-Hung Yang, Chien-Ming Chen, Der-Yang Cho, Chun-Chung Chen, Lu-Ting Kuo, Chieh-Hsun Li, Kuo-Chuan Wang, Wei-Lung Tseng, Ming-Tai Hsing, Bing-Shiang Yang, Dar-Ming Lai, Jui-Chang Tsai
BACKGROUND/PURPOSE: Minimally invasive endoscope-assisted (MIE) evacuation of spontaneous intracerebral hemorrhage (ICH) is simple and effective, but the limited working space may hinder meticulous hemostasis and might lead to rebleeding. Management of intraoperative hemorrhage is therefore a critical issue of this study. This study presents experience in the treatment of patients with various types of ICH by MIE evacuation followed by direct local injection of FloSeal Hemostatic Matrix (Baxter Healthcare Corp, Fremont, CA, USA) for hemostasis...
March 23, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28342667/a-fast-and-efficient-purification-platform-for-cell-based-influenza-viruses-by-flow-through-chromatography
#7
Yu-Fen Tseng, Tsai-Chuan Weng, Chia-Chun Lai, Po-Ling Chen, Min-Shi Lee, Alan Yung-Chih Hu
Since newly emerging influenza viruses with pandemic potentials occurred in recent years, the demand for producing pandemic influenza vaccines for human use is high. For the development of a quick and efficient vaccine production, we proposed an efficient purification platform from the harvest to the purified bulk for the cell-based influenza vaccine production. This platform based on flow-through chromatography and filtration steps and the process only involves a few purification steps, including depth filtration, inactivation by formaldehyde, microfiltration, ultrafiltration, anion-exchange and ligand-core chromatography and sterile filtration...
March 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28342400/using-gene-expression-database-to-uncover-biology-functions-of-1-4-disubstituted-1-2-3-triazole-analogues-synthesized-via-a-copper-i-catalyzed-reaction
#8
Chun-Li Su, Chia-Ling Tseng, Chintakunta Ramesh, Hsiao-Sheng Liu, Chi-Ying F Huang, Ching-Fa Yao
We have synthesized bioactive 1,4-disubstituted 1,2,3-triazole analogues containing 2H-1,4-benzoxazin-3-(4H)-one derivatives via 1,3-dipolar cycloaddition in the presence of CuI. All the reactions proceeded smoothly and afforded its desired products in excellent yields. Among these analogues, 3y exhibited a better cytotoxic effect on human hepatocellular carcinoma (HCC) Hep 3B cells and displayed less cytotoxicity on normal human umbilical vein endothelial cells, compared with Sorafenib, a targeted therapy for advanced HCC...
March 18, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28342092/evaluation-of-structural-connectivity-changes-in-betel-quid-chewers-using-generalized-q-sampling-mri
#9
Jun-Cheng Weng, Te-Wei Kao, Guo-Joe Huang, Yeu-Sheng Tyan, Hsien-Chun Tseng, Ming-Chou Ho
RATIONALE: Betel quid (BQ) is a common addictive substance in many Asian countries. However, few studies have focused on the influences of BQ on the brain. It remains unclear how BQ can affect structural brain abnormalities in BQ chewers. OBJECTIVES: We aimed to use generalized q-sampling imaging (GQI) to evaluate the impact of the neurological structure of white matter caused by BQ. METHODS: The study population comprised 16 BQ chewers, 15 tobacco and alcohol controls, and 17 healthy controls...
March 24, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28341738/higher-hopx-expression-is-associated-with-distinct-clinical-and-biological-features-and-predicts-poor-prognosis-in-de-novo-acute-myeloid-leukemia
#10
Chien-Chin Lin, Yueh-Chwen Hsu, Yi-Hung Li, Yuan-Yeh Kuo, Hsin-An Hou, Keng-Hsueh Lan, Tsung-Chih Chen, Yi-Shiuan Tzeng, Yi-Yi Kuo, Chein-Jun Kao, Po-Han Chuang, Mei-Hsuan Tseng, Yu-Chiao Chiu, Wen-Chien Chou, Hwei-Fang Tien
Homeodomain-only protein homeobox (HOPX) is the smallest homeodomain protein. It was regarded as a stem cell marker in several non-hematopoietic systems. While the prototypic homeobox genes such as HOX family have been well characterized in acute myeloid leukemia, the clinical and biological implications of HOPX in the disease remain unknown. Thus we analyzed HOPX and global gene expression patterns in 347 newly diagnosed de novo acute myeloid leukemia patients in our institute. We found that higher HOPX expression was closely associated with older age, higher platelet counts, lower white blood cell counts, lower lactate dehydrogenase levels, and mutations in RUNX1, IDH2, ASXL1, and DNMT3A, but negatively associated with acute promyelocytic leukemia, favorable karyotypes, CEBPA double mutations and NPM1 mutation...
March 24, 2017: Haematologica
https://www.readbyqxmd.com/read/28341441/neoadjuvant-therapy-versus-upfront-surgery-for-resected-pancreatic-adenocarcinoma-a-nationwide-propensity-score-matched-analysis
#11
Susanna W L de Geus, Mariam F Eskander, Lindsay A Bliss, Gyulnara G Kasumova, Sing Chau Ng, Mark P Callery, Jennifer F Tseng
BACKGROUND: Neoadjuvant therapy is an emerging paradigm in pancreatic cancer care; however, its role for resectable disease remains controversial in the absence of conclusive randomized controlled trials. The purpose of the present study is to assess the impact of neoadjuvant therapy on survival in resected pancreatic cancer patients by clinical stage. METHODS: A retrospective cohort study using the National Cancer Data Base from 2004 to 2012 including nonmetastatic pancreatic adenocarcinoma patients who underwent pancreatectomy and initiated chemotherapy...
March 2017: Surgery
https://www.readbyqxmd.com/read/28338930/expath-tool-a-system-for-comprehensively-analyzing-regulatory-pathways-and-coexpression-networks-from-high-throughput-transcriptome-data
#12
Han-Qin Zheng, Nai-Yun Wu, Chi-Nga Chow, Kuan-Chieh Tseng, Chia-Hung Chien, Yu-Cheng Hung, Guan-Zhen Li, Wen-Chi Chang
Next generation sequencing (NGS) has become the mainstream approach for monitoring gene expression levels in parallel with various experimental treatments. Unfortunately, there is no systematical webserver to comprehensively perform further analysis based on the huge amount of preliminary data that is obtained after finishing the process of gene annotation. Therefore, a user-friendly and effective system is required to mine important genes and regulatory pathways under specific conditions from high-throughput transcriptome data...
March 13, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28338050/schisandrin-a-inhibits-dengue-viral-replication-via-upregulating-antiviral-interferon-responses-through-stat-signaling-pathway
#13
Jung-Sheng Yu, Yu-Hsuan Wu, Chin-Kai Tseng, Chun-Kuang Lin, Yao-Chin Hsu, Yen-Hsu Chen, Jin-Ching Lee
Dengue virus (DENV) infects 400 million people worldwide annually. Infection of more than one serotype of DENV highly corresponds to dengue hemorrhagic fever and dengue shock syndrome, which are the leading causes of high mortality. Due to lack of effective vaccines and unavailable therapies against DENV, discovery of anti-DENV agents is urgently needed. We first characterize that Schisandrin A can inhibit the replication of four serotypes of DENV in a concentration- and time-dependent manner, with an effective half-maximal effective concentration 50% (EC50) value of 28...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337728/collinear-masking-effect-in-visual-search-is-independent-of-perceptual-salience
#14
Li Jingling, Yi-Hui Lu, Miao Cheng, Chia-Huei Tseng
Searching for a target in a salient region should be easier than looking for one in a nonsalient region. However, we previously discovered a contradictory phenomenon in which a local target in a salient structure was more difficult to find than one in the background. The salient structure was constructed of orientation singletons aligned to each other to form a collinear structure. In the present study, we undertake to determine whether such a masking effect was a result of salience competition between a global structure and the local target...
March 23, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28337708/intestinal-crypt-organoid-isolation-of-intestinal-stem-cells-in-vitro-culture-and-optical-observation
#15
Yun Chen, Chuan Li, Ya-Hui Tsai, Sheng-Hong Tseng
The isolation and culture of intestinal stem cells (ISCs) was first demonstrated in the very recent decade with the identification of ISC marker Lgr5. The growth of ISCs into crypt organoids provides an in vitro model for studying the mucosal physiology, intestinal cancer tumorigenesis, and intestinal regeneration. Here, we describe two different isolation protocols and demonstrate a fixation method that aids in the confocal observation of the organoids.
March 24, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28337132/habituation-training-improves-locomotor-performance-in-a-forced-running-wheel-system-in-rats
#16
Angel Toval, Raúl Baños, Ernesto De la Cruz, Nicanor Morales-Delgado, Jesús G Pallarés, Abdelmalik Ayad, Kuei Y Tseng, Jose L Ferran
Increasing evidence supports that physical activity promotes mental health; and regular exercise may confer positive effects in neurological disorders. There is growing number of reports that requires the analysis of the impact of physical activity in animal models. Exercise in rodents can be performed under voluntary or forced conditions. The former presents the disadvantage that the volume and intensity of exercise varies from subject to subject. On the other hand, a major challenge of the forced training protocol is the low level of performance typically achieved within a given session...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28336961/voltage-induced-interface-reconstruction-and-electrical-instability-of-the-ferromagnet-semiconductor-device
#17
Shu-Jui Chang, Po-Chun Chang, Wen-Chin Lin, Shao-Hua Lo, Liang-Chun Chang, Shang-Fan Lee, Yuan-Chieh Tseng
Using x-ray magnetic spectroscopy with in-situ electrical characterizations, we investigated the effects of external voltage on the spin-electronic and transport properties at the interface of a Fe/ZnO device. Layer-, element-, and spin-resolved information of the device was obtained by cross-tuning of the x-ray mode and photon energy, when voltage was applied. At the early stage of the operation, the device exhibited a low-resistance state featuring robust Fe-O bonds. However, the Fe-O bonds were broken with increasing voltage...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336836/visible-light-responsive-platinum-containing-titania-nanoparticle-mediated-photocatalysis-induces-nucleotide-insertion-deletion-and-substitution-mutations
#18
Der-Shan Sun, Yao-Hsuan Tseng, Wen-Shiang Wu, Ming-Show Wong, Hsin-Hou Chang
Conventional photocatalysts are primarily stimulated using ultraviolet (UV) light to elicit reactive oxygen species and have wide applications in environmental and energy fields, including self-cleaning surfaces and sterilization. Because UV illumination is hazardous to humans, visible light-responsive photocatalysts (VLRPs) were discovered and are now applied to increase photocatalysis. However, fundamental questions regarding the ability of VLRPs to trigger DNA mutations and the mutation types it elicits remain elusive...
December 28, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28336142/novel-11-norbetaenone-isolated-from-an-entomopathogenic-fungus-lecanicillium-antillanum
#19
Chi-Ying Li, I-Wen Lo, Shih-Wei Wang, Tsong-Long Hwang, Yu-Ming Chung, Yuan-Bin Cheng, Sung-Pin Tseng, Yi-Hung Liu, Yu-Ming Hsu, Shu-Rong Chen, Hao-Chun Hu, Fang-Rong Chang, Yang-Chang Wu
A novel nor-betaenone compound, 11-norbetaenone (1), was isolated from the culture broth of an entomopathogenic fungus Lecanicillium antillanum. The structure was determined on the basis of 1D and 2D NMR spectroscopic data. The absolute stereochemistry of 1 was further confirmed by X-ray single crystallography analysis. It is the first secondary metabolite reported from the species Lecanicillium antillanum. And it is also the first time that a betaenone-type compound was isolated from the genus Lecanicillium...
March 11, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28335365/antibacterial-properties-of-visible-light-responsive-carbon-containing-titanium-dioxide-photocatalytic-nanoparticles-against-anthrax
#20
Der-Shan Sun, Jyh-Hwa Kau, Hsin-Hsien Huang, Yao-Hsuan Tseng, Wen-Shiang Wu, Hsin-Hou Chang
The bactericidal activity of conventional titanium dioxide (TiO₂) photocatalyst is effective only on irradiation by ultraviolet light, which restricts the applications of TiO₂ for use in living environments. Recently, carbon-containing TiO₂ nanoparticles [TiO₂(C) NP] were found to be a visible-light-responsive photocatalyst (VLRP), which displayed significantly enhanced antibacterial properties under visible light illumination. However, whether TiO₂(C) NPs exert antibacterial properties against Bacillus anthracis remains elusive...
December 9, 2016: Nanomaterials
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