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https://www.readbyqxmd.com/read/28212017/increased-electron-accepting-and-decreased-electron-donating-capacities-of-soil-humic-substances-in-response-to-increasing-temperature
#1
Wenbing Tan, Beidou Xi, Guoan Wang, Jie Jiang, Xiao-Song He, Xuhui Mao, Ru-Tai Gao, Cai-Hong Huang, Hui Zhang, Dan Li, Yufu Jia, Ying Yuan, Xinyu Zhao
The electron transfer capacities (ETC) of soil humic substances (HS) are linked to the type and abundance of redox-active functional moieties in their structure. Natural temperature can affect the chemical structure of natural organic matter by regulating their oxidative transformation and degradation in soils. However, it is unclear if there is a direct correlation between ETC of soil HS and mean annual temperature. In this study, we assess the response of the electron accepting and electron donating capacities (EAC and EDC) of soil HS to temperature by analyzing HS extracted from soil sets along glacial-interglacial cycles through loess-palaeosol sequences and along natural temperature gradients through latitude and altitude transects...
February 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28211915/structure-of-the-shr-scr-heterodimer-bound-to-the-bird-idd-transcriptional-factor-jkd
#2
Yoshinori Hirano, Masahiro Nakagawa, Tomoe Suyama, Kohji Murase, Maya Shirakawa, Seiji Takayama, Tai-Ping Sun, Toshio Hakoshima
The plant-specific GAI, RGA and SCR (GRAS) family proteins play critical roles in plant development and signalling. Two GRAS proteins, SHORT-ROOT (SHR) and SCARECROW (SCR), cooperatively direct asymmetric cell division and the patterning of root cell types by transcriptional control in conjunction with BIRD/INDETERMINATE DOMAIN (IDD) transcription factors, although precise details of these specific interactions and actions remain unknown. Here, we present the crystal structures of the SHR-SCR binary and JACKDAW (JKD)/IDD10-SHR-SCR ternary complexes...
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28211493/25-hydroxyvitamin-d3-induces-osteogenic-differentiation-of-human-mesenchymal-stem-cells
#3
Yan-Ru Lou, Tai Chong Toh, Yee Han Tee, Hanry Yu
25-Hydroxyvitamin D3 [25(OH)D3] has recently been found to be an active hormone. Its biological actions are demonstrated in various cell types. 25(OH)D3 deficiency results in failure in bone formation and skeletal deformation. Here, we investigated the effect of 25(OH)D3 on osteogenic differentiation of human mesenchymal stem cells (hMSCs). We also studied the effect of 1α,25-dihydroxyvitamin D3 [1α,25-(OH)2D3], a metabolite of 25(OH)D3. One of the vitamin D responsive genes, 25(OH)D3-24-hydroxylase (cytochrome P450 family 24 subfamily A member 1) mRNA expression is up-regulated by 25(OH)D3 at 250-500 nM and by 1α,25-(OH)2D3 at 1-10 nM...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210067/the-effects-of-tai-chi-on-waist-circumference-and-blood-pressure-in-the-elderly
#4
Young Mee Lee
[Purpose] The purpose of this study was to investigate the effects of Tai Chi on waist circumference and blood pressure in the elderly. The present study used a nonequivalent control group pretest-posttest design. [Subjects and Methods] Sixty-eight elderly individuals residing in J city were divided into 2 groups: 34 in the experimental group, who received Tai Chi training for 6 weeks, and 34 in the control group, who did not receive Tai Chi training. Simplified Yang style 24-form Tai Chi was used as the intervention, which was conducted for 60 minutes per session, 5 sessions per week, for a total of 6 weeks...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28209973/structural-basis-for-fragmenting-the-exopolysaccharide-of-acinetobacter-baumannii-by-bacteriophage-%C3%AE-ab6-tailspike-protein
#5
I-Ming Lee, I-Fan Tu, Feng-Ling Yang, Tzu-Ping Ko, Jiahn-Haur Liao, Nien-Tsung Lin, Chung-Yi Wu, Chien-Tai Ren, Andrew H-J Wang, Ching-Ming Chang, Kai-Fa Huang, Shih-Hsiung Wu
With an increase in antibiotic-resistant strains, the nosocomial pathogen Acinetobacter baumannii has become a serious threat to global health. Glycoconjugate vaccines containing fragments of bacterial exopolysaccharide (EPS) are an emerging therapeutic to combat bacterial infection. Herein, we characterize the bacteriophage ΦAB6 tailspike protein (TSP), which specifically hydrolyzed the EPS of A. baumannii strain 54149 (Ab-54149). Ab-54149 EPS exhibited the same chemical structure as two antibiotic-resistant A...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209618/the-stat3-mirna-92-wnt-signaling-pathway-regulates-spheroid-formation-and-malignant-progression-in-ovarian-cancer
#6
Min-Wei Chen, Shu-Ting Yang, Ming-Hsien Chien, Kuo-Tai Hua, Chin-Jui Wu, Sheng-Mou Hsiao, Hao Lin, Michael Hsiao, Jen-Liang Su, Lin-Hung Wei
Ovarian cancer spheroids constitute a metastatic niche for transcoelomic spread that also engenders drug resistance. Spheroid-forming cells express active STAT3 signaling and display stem cell-like properties that may contribute to ovarian tumor progression. In this study, we show that STAT3 is hyperactivated in ovarian cancer spheroids and that STAT3 disruption in this setting is sufficient to relieve chemoresistance. In an NSG murine model of human ovarian cancer, STAT3 signaling regulated spheroid formation and self-renewal properties, whereas STAT3 attenuation reduced tumorigenicity...
February 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28209200/roles-of-preoperative-c-reactive-protein-are-more-relevant-in-buccal-cancer-than-other-subsites
#7
Shiao Fwu Tai, Huei-Tzu Chien, Chi-Kuang Young, Chung-Kang Tsao, Alba de Pablo, Kang-Hsing Fan, Chun-Ta Liao, Hung-Ming Wang, Chung-Jan Kang, Joseph Tung-Chieh Chang, Shiang-Fu Huang
BACKGROUND: C-reactive protein (CRP) is an early marker for inflammation, and a relationship between serum CRP levels and survival in oral cancer has been demonstrated previously. In this study, we investigated the roles of CRP in different oral cancer subsites. METHODS: Three hundred and forty-three oral squamous cell carcinoma patients between June 1999 and March 2015 were retrospectively reviewed. Serum CRP levels were measured preoperatively. RESULTS: The elevation of CRP levels (≥5...
February 16, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28208694/novel-hierarchical-fall-detection-algorithm-using-a-multiphase-fall-model
#8
Chia-Yeh Hsieh, Kai-Chun Liu, Chih-Ning Huang, Woei-Chyn Chu, Chia-Tai Chan
Falls are the primary cause of accidents for the elderly in the living environment. Reducing hazards in the living environment and performing exercises for training balance and muscles are the common strategies for fall prevention. However, falls cannot be avoided completely; fall detection provides an alarm that can decrease injuries or death caused by the lack of rescue. The automatic fall detection system has opportunities to provide real-time emergency alarms for improving the safety and quality of home healthcare services...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28208178/lingual-tonsillectomy-for-treatment-of-pediatric-obstructive-sleep-apnea-a-meta-analysis
#9
Kun-Tai Kang, Peter J Koltai, Chia-Hsuan Lee, Ming-Tzer Lin, Wei-Chung Hsu
Importance: Evidence indicates correlations between lingual tonsil hypertrophy and pediatric obstructive sleep apnea (OSA). However, to our knowledge, a meta-analysis of surgical outcomes for lingual tonsillectomy in children with OSA has not been conducted. Objective: To evaluate the therapeutic outcomes of lingual tonsillectomy for treatment of pediatric OSA. Data Sources: The study protocol was registered on PROSPERO (CRD42015027053). PubMed, MEDLINE, EMBASE, and the Cochrane Reviews databases were searched independently by 2 authors for relevant articles published by September 2016...
February 16, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28207767/osteoporosis-in-adult-patients-with-atopic-dermatitis-a-nationwide-population-based-study
#10
Ching-Ying Wu, Ying-Yi Lu, Chun-Ching Lu, Yu-Feng Su, Tai-Hsin Tsai, Chieh-Hsin Wu
The aim of this study was to investigate osteoporosis risk in atopic dermatitis (AD) patients. This study included patients in the Taiwan National Health Insurance Research dataset. The population-based study included all patients aged 20-49 years who had been diagnosed with AD during 1996-2010. In total, 35,229 age and gender-matched patients without AD in a 1:1 ratio were randomly selected as the non-AD group. Cox proportional-hazards regression and Kaplan-Meier analyses were used to measure the hazard ratios and the cumulative incidences of osteoporosis, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28207504/unusual-presentation-of-direct-intraperitoneal-metastases-complicated-with-massive-ascites-from-plasmacytoid-variant-of-bladder-cancer-and-adenocarcinoma-of-colon-a-case-report-and-literature-review
#11
Yu-Hua Shao, Chien-Chang Kao, Shou-Hung Tang, Tai-Lung Cha, Chih-Wei Tsao, En Meng, Dah-Shyong Yu, Guang-Huan Sun, Sheng-Tang Wu
BACKGROUND: Plasmacytoid urothelial carcinoma (PUC) is a distinct variant of urinary bladder cancer, with a high propensity for invasion and poor prognosis. These tumors occur most commonly in male patients with the age of reported cases ranging from 46 to 87 years. CASE REPORT: We present a case of a 74-year-old male patient having massive ascites and bilateral lower leg edema. Colonoscopy showed a 3-cm lesion in the sigmoid colon and an edematous nonpapillary tumor was found by cystoscopy in the bladder...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28206905/discovery-of-a-novel-alphavirus-related-to-eilat-virus
#12
Kyra Hermanns, Florian Zirkel, Anne Kopp, Marco Marklewitz, Innocent B Rwego, Alejandro Estrada, Thomas R Gillespie, Christian Drosten, Sandra Junglen
Most alphaviruses are transmitted by arthropods and infect vertebrate hosts. An exception is Eilat virus (EILV), the only described alphavirus with a host range restricted to insects. We established a new generic reverse transcription PCR assay for alphaviruses and tested 8860 tropical mosquitoes. We detected a novel alphavirus, tentatively named Taï Forest alphavirus (TALV), in Culex decens mosquitoes collected in Ivory Coast. The full genome was sequenced, and closest similarity was found to EILV. Pairwise amino acid identities to EILV ranged between 67 and 88 % for the corresponding proteins, suggesting that TALV defines a proposed new alphavirus species...
January 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28205526/association-evidence-of-ccttt-repeat-polymorphism-in-the-inos-promoter-and-the-risk-of-atrial-fibrillation-in-taiwanese
#13
Lung-An Hsu, Yung-Hsin Yeh, Wei-Jan Chen, Chi-Tai Kuo, Feng-Chun Tsai, Yi-Hsin Chan, Chun-Li Wang, Chi-Jen Chang, Hsin-Yi Tsai
Inducible nitric oxide synthase (iNOS) plays an important role in the pathogenesis of atrial fibrillation (AF). The iNOS promoter has a CCTTT-repeat length polymorphism that can determine the level of gene transcription. This study enrolled 200 AF patients and 240 controls. The length of CCTTT-repeat polymorphism in the iNOS promoter region was examined by polymerase chain reactions, with the alleles with ≤11 repeats designated as S and alleles with ≥12 repeats designated as L alleles. AF patients carried significantly higher frequencies of the LL genotype than control subjects (40...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28204533/non-syntenic-genes-drive-rtcs-dependent-regulation-of-the-embryo-transcriptome-during-formation-of-seminal-root-primordia-in-maize-zea-mays-l
#14
Huanhuan Tai, Nina Opitz, Andrew Lithio, Xin Lu, Dan Nettleton, Frank Hochholdinger
No abstract text is available yet for this article.
January 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28203525/microrna-520c-enhances-cell-proliferation-migration-and-invasion-by-suppressing-irf2-in-gastric-cancer
#15
Ying-Ru Li, Li-Qiang Wen, Yang Wang, Tai-Cheng Zhou, Ning Ma, Ze-Hui Hou, Zhi-Peng Jiang
Dysregulation of microRNA (miRNA) is actively involved in the development and progression of gastric cancer (GC). MiR-520c was previously found to be overexpressed in GC specimens and cells. However, the clinical significance of miR-520c and its biological function in GC remain largely unknown. Here, we found that miR-520c expression in GC tissues was significantly increased compared to normal adjacent gastric tissues. Its increased level was prominently correlated with poor clinical parameters and prognosis of GC patients...
December 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/28202222/early-initiation-of-immunosuppressive-treatment-in-membranous-nephropathy-patients
#16
Chieh Kai Chan, Tai Shuan Lai, Ping Min Chen, Yu Hsiang Chou, Ching Fang Wu, Yen Ling Chiu, Wen Chih Chiang, Yung Ming Chen, Tzong-Shinn Chu, Kwan Dun Wu
BACKGROUND: Suggestion for the management of idiopathic membranous nephropathy (IMN) includes 6 months of observation, followed with steroid plus alkylating agent. However, delayed immunosuppression exposes the kidneys to persistent damage. This study aimed to examine the benefit of early immunosuppression in IMN patients. METHOD: A retrospective study was performed. From 1993 to 2013, 161 IMN patients were enrolled. Patients receiving immunosuppression within 6 months after diagnosis were classified as initial-treatment group, whereas other patients as initial-no-treatment group...
February 12, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28202059/cardiosphere-derived-cells-do-not-improve-cardiac-function-in-rats-with-cardiac-failure
#17
Taís Hanae Kasai-Brunswick, Andréa Rodrigues da Costa, Raiana Andrade Quintanilha Barbosa, Bruna Farjun, Fernanda Cristina Paccola Mesquita, Danúbia Silva Dos Santos, Isalira Peroba Ramos, Grazielle Suhett, Guilherme Visconde Brasil, Sandro Torrentes da Cunha, José Oscar R Brito, Juliana do Amaral Passipieri, Adriana Bastos Carvalho, Antonio Carlos Campos de Carvalho
BACKGROUND: Heart failure represents an important public health issue due to its high costs and growing incidence worldwide. Evidence showing the regenerative potential of postmitotic heart tissue has suggested the existence of endogenous cardiac stem cells in adult hearts. Cardiosphere-derived cells (CDC) constitute a candidate pool of such cardiac stem cells. Previous studies using acute myocardial infarction (MI) models in rodents demonstrated an improvement in cardiac function after cell therapy with CDC...
February 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28199356/risk-of-dementia-from-proton-pump-inhibitor-use-in-asian-population-a-nationwide-cohort-study-in-taiwan
#18
Shu-Yu Tai, Chen-Yu Chien, Deng-Chyang Wu, Kun-Der Lin, Bo-Lin Ho, Yu-Han Chang, Yang-Pei Chang
INTRODUCTION: Concerns have been raised regarding the potential association between proton pump inhibitor (PPI) use and dementia. OBJECTIVE: This study aimed to examine this association in an Asian population. METHODS: Patients initiating PPI therapy between January 1, 2000 and December 31, 2003 without a prior history of dementia were identified from Taiwan's National Health Insurance Research Database. The outcome of interest was all-cause dementia...
2017: PloS One
https://www.readbyqxmd.com/read/28199267/organizational-and-community-factors-associated-with-magnet-status-of-u-s-hospitals
#19
Teresa Wai Chi Tai, Sherry I Bame
The Magnet Recognition Program for healthcare organizations promotes excellence in nursing services and professional practices. However, organizational and community characteristics that contribute to the adoption of Magnet status remain unexplained. Investigating organizational and community factors will help determine systematic structural and contextual dimensions of Magnet hospitals previously shown to be more cost-effective in comparison with non-Magnet hospitals. Using the baseline 2005 database of all Magnet hospitals in the United States, the authors selected a matched sample to determine key organizational and community characteristics associated with Magnet adoption while controlling for regional and local factors...
January 2017: Journal of Healthcare Management / American College of Healthcare Executives
https://www.readbyqxmd.com/read/28197679/contrast-associated-acute-kidney-injury-in-the-critically-ill-systematic-review-and-bayesian-meta-analysis
#20
Stephan Ehrmann, Andrew Quartin, Brian P Hobbs, Vincent Robert-Edan, Cynthia Cely, Cynthia Bell, Genevieve Lyons, Tai Pham, Roland Schein, Yimin Geng, Karim Lakhal, Chaan S Ng
PURPOSE: Critically ill patients, among whom acute kidney injury is common, are often considered particularly vulnerable to iodinated contrast medium nephrotoxicity. However, the attributable incidence remains uncertain given the paucity of observational studies including a control group. This study assessed acute kidney injury incidence attributable to iodinated contrast media in critically ill patients based on new data accounting for sample and effect size and including a control group...
February 14, 2017: Intensive Care Medicine
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