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https://www.readbyqxmd.com/read/28432258/lil3-a-light-harvesting-complex-protein-links-terpenoid-and-tetrapyrrole-biosynthesis
#1
Daniel Hey, Maxi Rothbart, Josephine Herbst, Peng Wang, Jakob Müller, Daniel Wittmann, Kirsten Gruhl, Bernhard Grimm
LIL3 of Arabidopsis thaliana belongs to the light-harvesting complex (LHC) family, which also includes the light-harvesting chlorophyll-binding proteins of photosystems 1 and 2, the early-light-inducible proteins, PsbS involved in non-photochemical quenching, the one-helix-proteins and their cyanobacterial homologs designated high-light-inducible proteins. Each member of this family is characterized by one or two LHC transmembrane domains (referred to as the LHC motif) to which potential functions such as chlorophyll binding, protein interaction and integration of interacting partners into the plastid membranes have been attributed...
April 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28429975/the-real-cost-of-training-health-professionals-in-australia-it-costs-as-much-to-build-a-dietician-workforce-as-a-dental-workforce
#2
Leonie Segal, Claire Marsh, Rob Heyes
Objectives We explored the real cost of training the workforce in a range of primary health care professions in Australia with a focus on the impact of retention to contribute to the debate on how best to achieve the optimal health workforce mix. Methods The cost to train an entry-level health professional across 12 disciplines was derived from university fees, payment for clinical placements and, where relevant, cost of internship, adjusted for student drop-out. Census data were used to identify the number of qualified professionals working in their profession over a working life and to model expected years of practice by discipline...
April 2017: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/28423742/novel-potential-predictive-markers-of-sunitinib-outcomes-in-long-term-responders-versus-primary-refractory-patients-with-metastatic-clear-cell-renal-cell-carcinoma
#3
Javier Puente, Nuria Laínez, Marta Dueñas, María José Méndez-Vidal, Emilio Esteban, Daniel Castellano, Mónica Martinez-Fernández, Laura Basterretxea, María José Juan-Fita, Luis Antón, Luis León, Julio Lambea, Begoña Pérez-Valderrama, Sergio Vázquez, Cristina Suarez, Xavier Garcia Del Muro, Enrique Gallardo, José Pablo Maroto, M Luz Samaniego, Beatriz Suárez-Paniagua, Julián Sanz, Jesús M Paramio, Sogug Spanish Oncology Genitourinary Group
BACKGROUND: Several potential predictive markers of efficacy of targeted agents in patients with metastatic renal cell carcinoma (mRCC) have been identified. Interindividual heterogeneity warrants further investigation. PATIENTS AND METHODS: Multicenter, observational, retrospective study in patients with clear-cell mRCC treated with sunitinib. Patients were classified in two groups: long-term responders (LR) (progression-free survival (PFS)≥22 months and at least stable disease), and primary refractory (PR) (progressive disease within 3-months of sunitinib onset)...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422797/response-to-the-letter-spinal-implants-can-be-inserted-in-patients-with-deep-spine-infection-results-from-a-large-cohort-study
#4
Hwee Weng Dennis Hey, Nathaniel Li Wen Ng, Chuen-Seng Tan, Dale Fisher, Anupama Vasudevan, Gabriel Ka-Po Liu, Joseph Thambiah, Naresh Kumar, Leok-Lim Lau, Hee-Kit Wong, Paul Anantharajah Tambyah
No abstract text is available yet for this article.
April 18, 2017: Spine
https://www.readbyqxmd.com/read/28416995/sufficient-explanation-of-management-affects-patient-satisfaction-and-the-practice-of-post-treatment-management-in-spinal-pain-a-multicenter-study-of-1007-patients
#5
Jae Yun Kim, Jae Hang Shim, Sung Jun Hong, Jong Yeun Yang, Hey Ran Choi, Yun Hee Lim, Ho Sik Moon, Jaemoon Lee, Jae Hun Kim
BACKGROUND: Spinal pain is most common symptom in pain clinic. In most cases, before the treatment of spinal pain, physician explains the patient's disease and treatment. We investigated patient's satisfaction and physician's explanation related to treatments in spinal pain patients by questionnaires. METHODS: Anonymous questionnaires about physician's explanation and patient's satisfaction in each treatment and post-treatment management were asked to individuals suffering from spinal pain...
April 2017: Korean Journal of Pain
https://www.readbyqxmd.com/read/28416770/nid1-a-new-regulator-of-emt-required-for-metastasis-and-chemoresistance-of-ovarian-cancer-cells
#6
Ya Zhou, Yuanyuan Zhu, Xiaoyan Fan, Chundong Zhang, Yitao Wang, Lian Zhang, Huan Zhang, Tao Wen, Kaina Zhang, Xiao Huo, Xue Jiang, Youquan Bu, Ying Zhang
Nidogen-1 (NID1) has been identified as a novel candidate diagnostic biomarker of ovarian cancer in our previous study. Nevertheless, the role of NID1 in the pathogenesis of ovarian cancer is unclear. In the present study, we demonstrated that NID1 was a mesenchymal associated gene and its high expression was significantly correlated with shorter overall survival of ovarian cancer patients. The ectopic expression of NID1 in OVCAR-3 cells revealed a epithelial-mesenchymal transition (EMT) phenotype accompanied by enhancement of motility, invasiveness and cisplatin resistance, whereas the knockdown of NID1 was sufficient to convert HEY cells into epithelial phenotype with decreased capability of motility, invasiveness and cisplatin resistance...
March 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412944/length-of-paediatric-inpatient-stay-socio-economic-status-and-hospital-configuration-a-retrospective-cohort-study
#7
Michelle Heys, Matthew Rajan, Mitch Blair
BACKGROUND: Variation in paediatric inpatient length of stay exists - whether this is driven by differences in patient characteristics or health service delivery is unclear. We will test the hypotheses that higher levels of deprivation are associated with prolonged length of stay and that differences in prolonged length of stay across 2 hospitals will be explained by demographic, clinical and process factors. METHODS: This is a retrospective cohort study of 2889 children aged less than 16 years admitted from 1st April 2009 to 30(th) March 2010...
April 17, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28412563/how-are-patients-influenced-when-counselled-for-minimally-invasive-lumbar-spine-surgeries-a-stepwise-model-assessing-pivotal-information-for-decision-making
#8
Hwee Weng Dennis Hey, Nishant Kumar, Alex Quok An Teo, Kimberly-Anne Tan, Ka-Po Gabriel Liu, Hee-Kit Wong
BACKGROUND CONTEXT: While minimally invasive surgery (MIS) transforaminal lumbar interbody fusion (TLIF) has many evidence-based short-term benefits over open TLIF, both procedures have similar long-term outcomes. Patients' preference for MIS over open TLIF may be confounded by a lack of understanding of what each approach entails. PURPOSE: To identify the various factors influencing patients' choice between MIS and open TLIF. STUDY DESIGN/SETTING: Cross-sectional study conducted at a tertiary healthcare institution PATIENT SAMPLE: Patients, for whom TLIF procedures were indicated, were recruited over a 3-month period from specialist outpatient clinics OUTCOME MEASURES: Patients' choice of surgical approach (MIS or Open) METHODS: All patients were subjected to a stepwise interviewing process, and were asked to select between open and MIS approaches at each step...
April 12, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28409193/dietary-accumulation-of-inorganic-selenium-by-a-larval-amphibian-hyla-chrysoscelis-and-influence-on-accumulation-of-background-mercury
#9
Christopher L Rowe, Andrew Heyes
Larval gray tree frogs (Hyla chrysoscelis) were exposed to inorganic Se (SeO2) added to the diet (10.2 and 86.3 ug/g dw) and monitored for accumulation and effect. Background concentrations of Hg were also measured in food and carcasses to assess possible effects of Se on Hg accumulation. Selenium was accumulated in a dose dependent manner, and life stages did not differ. No effects of Se exposure were observed on survival, growth, or time to metamorphosis. Mercury concentrations in carcasses, resulting from background concentrations in food, were significantly affected by the presence of Se...
April 13, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28407768/a-study-of-noninvasive-fractional-flow-reserve-derived-from-a-simplified-method-based-on-coronary-computed-tomography-angiography-in-suspected-coronary-artery-disease
#10
Changzheng Shi, Dong Zhang, Kunlin Cao, Tao Zhang, Liangping Luo, Xin Liu, Heye Zhang
BACKGROUND: The invasive fractional flow reserve has been considered the gold standard for identifying ischaemia-related stenosis in patients with suspected coronary artery disease. Determining non-invasive FFR based on coronary computed tomographic angiography datasets using computational fluid dynamics tends to be a demanding process. Therefore, the diagnostic performance of a simplified method for the calculation of FFRCTA requires further evaluation. OBJECTIVES: The aim of this study was to investigate the diagnostic performance of FFRCTA calculated based on a simplified method by referring to the invasive FFR in patient-specific coronary arteries and clinical decision-making...
April 14, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28406185/knockdown-of-stem-cell-regulator-oct4a-in-ovarian-cancer-reveals-cellular-reprogramming-associated-with-key-regulators-of-cytoskeleton-extracellular-matrix-remodelling
#11
Chantel Samardzija, David W Greening, Ruth Escalona, Maoshan Chen, Maree Bilandzic, Rodney Luwor, George Kannourakis, Jock K Findlay, Nuzhat Ahmed
Oct4A is a master regulator of self-renewal and pluripotency in embryonic stem cells. It is a well-established marker for cancer stem cell (CSC) in malignancies. Recently, using a loss of function studies, we have demonstrated key roles for Oct4A in tumor cell survival, metastasis and chemoresistance in in vitro and in vivo models of ovarian cancer. In an effort to understand the regulatory role of Oct4A in tumor biology, we employed the use of an ovarian cancer shRNA Oct4A knockdown cell line (HEY Oct4A KD) and a global mass spectrometry (MS)-based proteomic analysis to investigate novel biological targets of Oct4A in HEY samples (cell lysates, secretomes and mouse tumor xenografts)...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28398587/complexity-and-specificity-of-the-maize-zea-mays-l-root-hair-transcriptome
#12
Stefan Hey, Jutta Baldauf, Nina Opitz, Andrew Lithio, Asher Pasha, Nicholas Provart, Dan Nettleton, Frank Hochholdinger
Root hairs are tubular extensions of epidermis cells. Transcriptome profiling demonstrated that the single cell-type root hair transcriptome was less complex than the transcriptome of multiple cell-type primary roots without root hairs. In total, 831 genes were exclusively and 5585 genes were preferentially expressed in root hairs [false discovery rate (FDR) ≤1%]. Among those, the most significantly enriched Gene Ontology (GO) functional terms were related to energy metabolism, highlighting the high energy demand for the development and function of root hairs...
April 8, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28397182/evaluation-and-clinical-correlation-of-practical-cut-offs-for-visual-rating-scales-of-atrophy-normal-aging-versus-mild-cognitive-impairment-and-alzheimer-s-disease
#13
Anne-Sophie Vanhoenacker, Bernard Sneyers, Frederik De Keyzer, Sam Heye, Philippe Demaerel
Age-related brain atrophy is a common finding, but neurodegenerative diseases such as Alzheimer's disease are associated with accelerated atrophy of the medial temporal lobe. In current practice for brain atrophy evaluation, several rating scales are being used such as the medial temporal atrophy (MTA), global cortical atrophy-frontal subscale (GCA-F) and posterior atrophy (PA) scales. Practical cut-offs to differentiate between normal and advanced brain atrophy are needed, because of their possible usefulness as a biomarker...
April 10, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28396883/intracortical-circuits-in-thalamorecipient-layers-of-auditory-cortex-refine-after-visual-deprivation
#14
Xiangying Meng, Joseph P Y Kao, Hey-Kyoung Lee, Patrick O Kanold
Sensory cortices do not work in isolation. The functional responses of neurons in primary sensory cortices can be affected by activity from other modalities. For example, short-term visual deprivations, or dark exposure (DE), leads to enhanced neuronal responses and frequency selectivity to sounds in layer 4 (L4) of primary auditory cortex (A1). Circuit changes within A1 likely underlie these changes. Prior studies revealed that DE enhanced thalamocortical transmission to L4 in A1. Because the frequency selectivity of L4 neurons is determined by both thalamocortical and intracortical inputs, changes in intralaminar circuits to L4 neurons might also contribute to improved sound responses...
March 2017: ENeuro
https://www.readbyqxmd.com/read/28379446/50-important-research-questions-in-microbial-ecology
#15
Rachael E Antwis, Sarah M Griffiths, Xavier A Harrison, Paz Aranega-Bou, Andres Arce, Aimee S Bettridge, Francesca L Brailsford, Alexandre de Menezes, Andrew Devaynes, Kristian M Forbes, Ellen L Fry, Ian Goodhead, Erin Haskell, Chloe Heys, Chloe James, Sarah R Johnston, Gillian R Lewis, Zenobia Lewis, Michael C Macey, Alan McCarthy, James E McDonald, Nasmille L Mejia-Florez, David O'Brien, Chloé Orland, Marco Pautasso, William D K Reid, Heather A Robinson, Kenneth Wilson, William J Sutherland
Microbial ecology provides insights into the ecological and evolutionary dynamics of microbial communities underpinning every ecosystem on Earth. Microbial communities can now be investigated in unprecedented detail, although there is still a wealth of open questions to be tackled. Here we identify 50 research questions of fundamental importance to the science or application of microbial ecology, with the intention of summarising the field and bringing focus to new research avenues. Questions are categorised into seven themes: Host-Microbiome Interactions; Health and Infectious Diseases; Human Health and Food Security; Microbial Ecology in a Changing World; Environmental Processes; Functional Diversity; and Evolutionary Processes...
April 3, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28368987/prevalence-and-predictors-of-pressure-injuries-from-spine-surgery-in-the-prone-position-do-body-morphological-changes-during-deformity-correction-increase-the-risks
#16
Shuxun Lin, Hwee Weng Dennis Hey, Eugene Tze Chun Lau, Kimberly-Anne Tan, Joseph Shantakumar Thambiah, Leok-Lim Lau, Naresh Kumar, Ka-Po Gabriel Liu, Hee-Kit Wong
STUDY DESIGN: Review of data and prospective study OBJECTIVE.: To investigate the prevalence and predictive factors of pressure injuries in spine surgery performed in the prone position, and to determine if morphological changes and truncal shifts occurring during deformity correction predispose to this complication. SUMMARY OF BACKGROUND DATA: Spine surgery performed in the prone position presents the risk of developing pressure injuries. This risk is potentially increased in deformity correction, as it tends to involve more extensive procedures, with associated longer operating times...
March 31, 2017: Spine
https://www.readbyqxmd.com/read/28368665/assessment-of-the-cochlear-nerve-to-facial-nerve-size-ratio-using-mr-multiplanar-reconstruction-of-the-internal-auditory-canal-in-patients-presenting-with-acquired-longstanding-hearing-loss
#17
Nagy N N Naguib, Constanze Hey, Mohamed S Shaaban, Amr M Elabd, Heba Hassan, Tatjana Gruber-Rouh, Benjamin Kaltenbach, Marc Harth, Hanns Ackermann, Timo Stoever, Thomas J Vogl, Nour-Eldin A Nour-Eldin
OBJECTIVES: To test using the facial nerve as a reference for assessment of the cochlear nerve size in patients with acquired longstanding-sensorineural-hearing-loss (SNHL) using MRI multiplanar-reconstruction (MPR). METHODS: The study was retrospectively performed on 86 patients. Group 1 (study group, n=53) with bilateral longstanding-SNHL. Group 2 (control group, n=33) without hearing loss. Nerve size was measured by drawing region of interest around the cross-sectional circumference of the nerve in MPR images...
April 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28350553/impact-of-allogeneic-hematopoietic-stem-cell-transplantation-on-the-hiv-reservoir-and-immune-response-in-three-hiv-infected-individuals
#18
K K Koelsch, T A Rasmussen, W J Hey-Nguyen, C Pearson, Y Xu, M Bailey, K H Marks, S C Sasson, M S Taylor, R Tantau, S Obeid, B Milner, C O Morrissey, A N Pinto, K Suzuki, M P Busch, S M Keating, P Kaiser, S Yukl, J K Wong, B M Hiener, S Palmer, J Zaunders, J J Post, D J Chan, S Avery, S T Milliken, A D Kelleher, S R Lewin, D A Cooper
BACKGROUND: Allogeneic hematopoietic stem cell transplantation (HSCT) can lead to significant changes to the HIV reservoir and HIV immune responses, indicating that further characterisation of HIV infected patients undergoing HSCT is warranted. METHODS: We studied three patients who underwent HSCT after either reduced intensity conditioning or myeloablative conditioning regimen. We measured HIV antigens and antibodies (Ag/Ab), HIV specific CD4+ T cell responses, HIV RNA and DNA in plasma, peripheral blood mononuclear cells (PBMCs), isolated CD4+ T cells from peripheral blood and lymph node cells...
March 24, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28337159/hey-teacher-don-t-leave-them-kids-alone-action-is-better-for-memory-than-reading
#19
Mathieu Hainselin, Laurence Picard, Patrick Manolli, Sophie Vankerkore-Candas, Béatrice Bourdin
There is no consensus on how the enactment effect (EE), although it is robust, enhances memory. Researchers are currently investigating the cognitive processes underlying this effect, mostly during adulthood; the link between EE and crucial function identified in adulthood such as episodic memory and binding process remains elusive. Therefore, this study aims to verify the existence of EE in 6-10 years old and assess cognitive functions potentially linked to this effect in order to shed light on the mechanisms underlying the EE during childhood...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28333230/bayesian-analysis-of-evolutionary-divergence-with-genomic-data-under-diverse-demographic-models
#20
Yujin Chung, Jody Hey
We present a new Bayesian method for estimating demographic and phylogenetic history using population genomic data. Several key innovations are introduced that allow the study of diverse models within an Isolation with Migration framework. The new method implements a 2-step analysis, with an initial Markov chain Monte Carlo (MCMC) phase that samples simple coalescent trees, followed by the calculation of the joint posterior density for the parameters of a demographic model. In step 1, the MCMC sampling phase, the method uses a reduced state space, consisting of coalescent trees without migration paths, and a simple importance sampling distribution without the demography of interest...
February 25, 2017: Molecular Biology and Evolution
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