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https://www.readbyqxmd.com/read/28731321/conjugation-dependent-interaction-of-folic-acid-with-folate-binding-protein
#1
Rachel Leah Merzel, Carolina Frey, Junjie Chen, Rachel Garn, Mallory A van Dongen, Casey A Dougherty, Ananda Kandaluru, Philip S Low, E Neil G Marsh, Mark M Banaszak Holl
Serum proteins play a critical role in the transport, uptake, and efficacy of targeted drug therapies, and here we investigate the interactions between folic acid-polymer conjugates and serum folate binding protein (FBP), the soluble form of the cellular membrane-bound folate receptor. We demonstrate that both choice of polymer and method of ligand conjugation affect the interactions between folic acid-polymer conjugates and serum FBP, resulting in changes in the folic acid-induced protein aggregation process...
July 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28729471/hypoxic-vascular-response-and-ventilation-perfusion-matching-in-end-stage-copd-may-depend-on-p22phox
#2
Chandran Nagaraj, Christoph Tabeling, Bence M Nagy, Pritesh P Jain, Leigh M Marsh, Rita Papp, Michael Pienn, Martin Witzenrath, Bahil Ghanim, Walter Klepetko, E Kenneth Weir, Stefan Heschl, Grazyna Kwapiszewska, Andrea Olschewski, Horst Olschewski
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease in which the amount of emphysema and airway disease may be very different between individuals, even in end-stage disease. Emphysema formation may be linked to the involvement of the small pulmonary vessels. The NAPDH oxidase (Nox) family is emerging as a key disease-related factor in vascular diseases, but currently its role in hypoxia-induced pulmonary remodelling in COPD remains unclear.Here we investigate the role of p22phox, a regulatory subunit of Nox, in COPD lungs, hypoxic pulmonary vasoconstriction (HPV), hypoxia-induced pulmonary vascular remodelling and pulmonary hypertension...
July 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28727322/hfe-gene-polymorphism-defined-by-sequence-based-typing-of-the-brazilian-population-and-a-standardized-nomenclature-for-hfe-allele-sequences
#3
W N Campos, J D Massaro, A L C Martinelli, J A Halliwell, S G E Marsh, C T Mendes-Junior, E A Donadi
The HFE molecule controls iron uptake from gut, and defects in the molecule have been associated with iron overload, particularly in hereditary hemochromatosis. The HFE gene including both coding and boundary intronic regions were sequenced in 304 Brazilian individuals, encompassing healthy individuals and patients exhibiting hereditary or acquired iron overload. Six sites of variation were detected: i) H63D C > G in exon 2, ii) IVS2 (+4) T > C in intron 2, iii) a C > G transversion in intron 3, iv) C282Y G > A in exon 4, v) IVS4 (-44) T > C in intron 4, and vi) a new Guanine deletion (G > del) in intron 5, which were used for haplotype inference...
July 20, 2017: HLA
https://www.readbyqxmd.com/read/28725664/morphotypes-and-pigment-profiles-of-halophilic-bacteria-practical-data-useful-for-novelty-taxonomic-categorization-and-for-describing-novel-species-or-new-taxa
#4
Bhagwan N Rekadwad, Chandrahasya N Khobragade
Halophilic bacteria were isolated from oil spill samples collected from West-coast of Goa. Bacteria were isolated from oil studded soil, salt marsh and offshore samples (A, A7, CSM, CB and CM) collected along the West coastline in Goa (India) i.e. Arambol beach, Calanguate beach, Candolim beach and Colva beach on Zobell Marine agar, R2A agar, Mannitol salt agar and Blood agar at temperature 22 to 24 °C. Isolates showed growth in the presence of hydrocarbons (1% phenanthrene and 2% bitumen). Diverse profiles of pigments were observed on different nutrient medium...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28722128/solar-insolation-in-springtime-influences-age-of-onset-of-bipolar-i-disorder
#5
M Bauer, T Glenn, M Alda, M A Aleksandrovich, O A Andreassen, E Angelopoulos, R Ardau, Y Ayhan, C Baethge, S R Bharathram, R Bauer, B T Baune, C Becerra-Palars, F Bellivier, R H Belmaker, M Berk, Y Bersudsky, Ş Bicakci, H Birabwa-Oketcho, T D Bjella, L Bossini, J Cabrera, E Y W Cheung, M Del Zompo, S Dodd, M Donix, B Etain, A Fagiolini, K N Fountoulakis, M A Frye, A Gonzalez-Pinto, J F Gottlieb, P Grof, H Harima, C Henry, E T Isometsä, S Janno, F Kapczinski, M Kardell, S Khaldi, S Kliwicki, B König, T L Kot, R Krogh, M Kunz, B Lafer, M Landén, E R Larsen, U Lewitzka, R W Licht, C Lopez-Jaramillo, G MacQueen, M Manchia, W Marsh, M Martinez-Cengotitabengoa, I Melle, F Meza-Urzúa, M Yee Ming, S Monteith, G Morken, E Mosca, R Munoz, S V Mythri, F Nacef, R K Nadella, F G Nery, R E Nielsen, C O'Donovan, A Omrani, Y Osher, H Østermark Sørensen, U Ouali, Y Pica Ruiz, M Pilhatsch, M Pinna, F D R da Ponte, D Quiroz, R Ramesar, N Rasgon, M S Reddy, A Reif, P Ritter, J K Rybakowski, K Sagduyu, Â M Scippa, E Severus, C Simhandl, D J Stein, S Strejilevich, M Subramaniam, A H Sulaiman, K Suominen, H Tagata, Y Tatebayashi, L Tondo, C Torrent, A E Vaaler, J Veeh, E Vieta, B Viswanath, M Yoldi-Negrete, M Zetin, Y Zgueb, P C Whybrow
OBJECTIVE: To confirm prior findings that the larger the maximum monthly increase in solar insolation in springtime, the younger the age of onset of bipolar disorder. METHOD: Data were collected from 5536 patients at 50 sites in 32 countries on six continents. Onset occurred at 456 locations in 57 countries. Variables included solar insolation, birth-cohort, family history, polarity of first episode and country physician density. RESULTS: There was a significant, inverse association between the maximum monthly increase in solar insolation at the onset location, and the age of onset...
July 19, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28721309/retinal-pigment-epithelial-cells-are-a-potential-reservoir-for-ebola-virus-in-the-human-eye
#6
Justine R Smith, Shawn Todd, Liam M Ashander, Theodosia Charitou, Yuefang Ma, Steven Yeh, Ian Crozier, Michael Z Michael, Binoy Appukuttan, Keryn A Williams, David J Lynn, Glenn A Marsh
PURPOSE: Success of Ebola virus (EBOV) as a human pathogen relates at the molecular level primarily to blockade the host cell type I interferon (IFN) antiviral response. Most individuals who survive Ebola virus disease (EVD) develop a chronic disease syndrome: approximately one-quarter of survivors suffer from uveitis, which has been associated with presence of EBOV within the eye. Clinical observations of post-Ebola uveitis indicate involvement of retinal pigment epithelial cells. METHODS: We inoculated ARPE-19 human retinal pigment epithelial cells with EBOV, and followed course of infection by immunocytochemistry and measurement of titer in culture supernatant...
July 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28720589/dynamic-role-of-the-tether-helix-in-pip2-dependent-gating-of-a-g-protein-gated-potassium-channel
#7
Emre Lacin, Prafulla Aryal, Ian W Glaaser, Karthik Bodhinathan, Eric Tsai, Nidaa Marsh, Stephen J Tucker, Mark S P Sansom, Paul A Slesinger
G protein-gated inwardly rectifying potassium (GIRK) channels control neuronal excitability in the brain and are implicated in several different neurological diseases. The anionic phospholipid phosphatidylinositol 4,5 bisphosphate (PIP2) is an essential cofactor for GIRK channel gating, but the precise mechanism by which PIP2 opens GIRK channels remains poorly understood. Previous structural studies have revealed several highly conserved, positively charged residues in the "tether helix" (C-linker) that interact with the negatively charged PIP2 However, these crystal structures of neuronal GIRK channels in complex with PIP2 provide only snapshots of PIP2's interaction with the channel and thus lack details about the gating transitions triggered by PIP2 binding...
July 18, 2017: Journal of General Physiology
https://www.readbyqxmd.com/read/28719421/lifelong-estradiol-exposure-and-risk-of-depressive-symptoms-during-the-transition-to-menopause-and-postmenopause
#8
Wendy K Marsh, Joyce T Bromberger, Sybil L Crawford, Katherine Leung, Howard M Kravitz, John F Randolph, Hadine Joffe, Claudio N Soares
OBJECTIVE: Depression risk increases during the menopausal transition (MT) and initial postmenopausal years-both times of significant fluctuations of estrogen. Research to date provides limited support for the hypothesis that estrogen fluctuations play a role in the greater susceptibility to midlife depression. Importantly, not all women report depressive symptoms during the MT, and recent reports suggest that duration of exposure to estradiol throughout the adult years may also play a role in vulnerability to depression...
July 17, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28718204/detrital-shadows-estuarine-food-web-connectivity-depends-on-fluvial-influence-and-consumer-feeding-mode
#9
Emily Howe, Charles A Simenstad, Andrea Ogston
We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ(13) C, δ(15) N, δ(34) S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, Japanese eelgrass (Zostera japonica), and native eelgrass (Zostera marina)...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28714801/muleshoe-virus-and-other-hantaviruses-associated-with-neotomine-or-sigmodontine-rodents-in-texas
#10
Mary Louise Milazzo, Maria N B Cajimat, Martin H Richter, Robert D Bradley, Charles F Fulhorst
The broad objective of this study was to increase our knowledge of Muleshoe virus and other hantaviruses associated with cricetid rodents in Texas. Anti-hantavirus antibody was found in 38 (3.2%) of 1171 neotomine rodents and 6 (1.8%) of 332 sigmodontine rodents from 10 Texas counties; hantaviral RNA was detected in 23 (71.9%) of 32 antibody-positive rodents. Analyses of nucleocapsid protein gene sequences indicated Muleshoe virus infection in four hispid cotton rats (Sigmodon hispidus) from northern Texas; Bayou virus, three Texas marsh oryzomys (Oryzomys texensis) from the Gulf Coast; Limestone Canyon virus, five brush mice (Peromyscus boylii) from western Texas; and Sin Nombre virus-five Texas mice (P...
July 17, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28711779/hyperactive-foxo1-results-in-lack-of-tip-stalk-identity-and-deficient-microvascular-regeneration-during-kidney-injury
#11
Lan T H Dang, Takahide Aburatani, Graham A Marsh, Bryce G Johnson, Stella Alimperti, Christine J Yoon, Angela Huang, Suzanne Szak, Naoki Nakagawa, Ivan Gomez, Shuyu Ren, Sarah K Read, Chris Sparages, Alfred C Aplin, Roberto F Nicosia, Chris Chen, Giovanni Ligresti, Jeremy S Duffield
Loss of the microvascular (MV) network results in tissue ischemia, loss of tissue function, and is a hallmark of chronic diseases. The incorporation of a functional vascular network with that of the host remains a challenge to utilizing engineered tissues in clinically relevant therapies. We showed that vascular-bed-specific endothelial cells (ECs) exhibit differing angiogenic capacities, with kidney microvascular endothelial cells (MVECs) being the most deficient, and sought to explore the underlying mechanism...
July 7, 2017: Biomaterials
https://www.readbyqxmd.com/read/28710206/exploring-how-ward-staff-engage-with-the-implementation-of-a-patient-safety-intervention-a-uk-based-qualitative-process-evaluation
#12
Laura Sheard, Claire Marsh, Jane O'Hara, Gerry Armitage, John Wright, Rebecca Lawton
OBJECTIVES: A patient safety intervention was tested in a 33-ward randomised controlled trial. No statistically significant difference between intervention and control wards was found. We conducted a process evaluation of the trial and our aim in this paper is to understand staff engagement across the 17 intervention wards. DESIGN: Large qualitative process evaluation of the implementation of a patient safety intervention. SETTING AND PARTICIPANTS: National Health Service staff based on 17 acute hospital wards located at five hospital sites in the North of England...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28704227/mortality-among-hardmetal-production-workers-occupational-exposures
#13
Kathleen J Kennedy, Nurtan A Esmen, Jeanine M Buchanich, Sarah Zimmerman, Anne J Sleeuwenhoek, Gary M Marsh
OBJECTIVE: To generate quantitative exposure estimates for use in retrospective occupational cohort mortality studies of the hardmetal industry. METHODS: Job-exposure matrices (JEMs) were constructed for cobalt, tungsten, and nickel over the time period 1952 to 2014. The JEMs consisted of job class categories, based on job titles and processes performed, and exposure estimates calculated from available company industrial hygiene measurements. RESULTS: Exposure intervals of one-half order magnitude were established for all three agents...
July 12, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28703880/performance-of-prognostic-scores-and-staging-systems-in-predicting-long-term-survival-outcomes-after-surgery-for-intrahepatic-cholangiocarcinoma
#14
Stefan Buettner, Boris Galjart, Jeroen L A van Vugt, Fabio Bagante, Sorin Alexandrescu, Hugo P Marques, Jorge Lamelas, Luca Aldrighetti, T Clark Gamblin, Shishir K Maithel, Carlo Pulitano, Georgios A Margonis, Matthew Weiss, Todd W Bauer, Feng Shen, George A Poultsides, J Wallis Marsh, Jan N M IJzermans, Bas Groot Koerkamp, Timothy M Pawlik
INTRODUCTION: We sought to validate the commonly used prognostic models and staging systems for intrahepatic cholangiocarcinoma (ICC) in a large multi-center patient cohort. METHODS: The overall (OS) and disease free survival (DFS) prognostic discriminatory ability of various commonly used models were assessed in a large retrospective cohort. Harrell's concordance index (c-index) was used to determine accuracy of model prediction. RESULTS: Among 1054 ICC patients, median OS was 37...
July 13, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28702899/complex-antioxidants-in-a-randomized-single-blinded-study-of-memory-in-seniors
#15
William K Summers, Roy L Martin, Yimeng Liu, Bernice Peña, Gary M Marsh
INTRODUCTION: Oxidative injury to the brain and aging are theoretical co-causes of Alzheimer's Disease (AD). Amyloid plaques and tangles are then secondary phenomenon. The preclinical state would then be 'normal' elderly. METHODS: A potent complex antioxidant (antiOx) was tested against a popular one-a-day multivitamin (mV) in a randomized single blind design in 'normal' senior subjects over 6 months. Memory testing was done at baseline, 1, 3, and 6 months. The generalized estimating equation (GEE) approach was used to compare the change score of NLT100 and 20WR between two groups over time...
July 12, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28702492/advanced-treatment-of-saline-municipal-wastewater-by-ruppia-maritima-a-data-set
#16
Mehdi Ahmadi, Hamed Saki, Afshin Takdastan, Mehri Dinarvand, Sahand Jorfi, Bahman Ramavandi
Saline municipal wastewater treatment is a challenging environmental issue in coastal cities, due to the discharge of saline water into the sewers. The present research article focuses on the phytoremediation of high saline municipal wastewater by Ruppia maritime, a widespread plant which can be found in saline medium such as traditional fish ponds, estuaries, tidal flats, salt pans, coastal paddy fields, coastal lagoons, marsh pools, and mangrove salt marshes in Khuzestan province, Iran. The experimental data was obtained using a pilot plant constructed in Chobeineh wastewater treatment plant in Ahvaz city, fed by activated sludge effluent in 3 levels of electrical conductivity (EC) (10, 15, 20 ms cm(-1)), during 45 days of the experiment...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28702012/community-composition-of-nitrous-oxide-consuming-bacteria-in-the-oxygen-minimum-zone-of-the-eastern-tropical-south-pacific
#17
Xin Sun, Amal Jayakumar, Bess B Ward
The ozone-depleting and greenhouse gas, nitrous oxide (N2O), is mainly consumed by the microbially mediated anaerobic process, denitrification. N2O consumption is the last step in canonical denitrification, and is also the least O2 tolerant step. Community composition of total and active N2O consuming bacteria was analyzed based on total (DNA) and transcriptionally active (RNA) nitrous oxide reductase (nosZ) genes using a functional gene microarray. The total and active nosZ communities were dominated by a limited number of nosZ archetypes, affiliated with bacteria from marine, soil and marsh environments...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28701089/increased-risk-of-herpes-zoster-in-patients-with-coeliac-disease-nationwide-cohort-study
#18
Jonas F Ludvigsson, Rok Seon Choung, Eric V Marietta, Joseph A Murray, Louise Emilsson
BACKGROUND AND AIMS: Clinical experience suggests that patients with coeliac disease (CD) are more prone to develop herpes zoster (HZ), but robust studies are lacking. METHODS: We identified 29,064 patients with CD 1969-2008 using biopsy report data from Sweden's 28 pathology departments. CD was equalled to villous atrophy (Marsh histopathology grade III). Each patient was matched on age, sex, calendar year and county of residence to up to five reference individuals ( n=144,342) from the general population...
July 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28698602/polyglutamine-expansion-affects-huntingtin-conformation-in-multiple-huntington-s-disease-models
#19
Manuel Daldin, Valentina Fodale, Cristina Cariulo, Lucia Azzollini, Margherita Verani, Paola Martufi, Maria Carolina Spiezia, Sean M Deguire, Marta Cherubini, Douglas Macdonald, Andreas Weiss, Alberto Bresciani, Jean-Paul Gerard Vonsattel, Lara Petricca, J Lawrence Marsh, Silvia Gines, Iolanda Santimone, Massimo Marano, Hilal A Lashuel, Ferdinando Squitieri, Andrea Caricasole
Conformational changes in disease-associated or mutant proteins represent a key pathological aspect of Huntington's disease (HD) and other protein misfolding diseases. Using immunoassays and biophysical approaches, we and others have recently reported that polyglutamine expansion in purified or recombinantly expressed huntingtin (HTT) proteins affects their conformational properties in a manner dependent on both polyglutamine repeat length and temperature but independent of HTT protein fragment length. These findings are consistent with the HD mutation affecting structural aspects of the amino-terminal region of the protein, and support the concept that modulating mutant HTT conformation might provide novel therapeutic and diagnostic opportunities...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28697060/mortality-among-hardmetal-production-workers-uk-cohort-and-nested-case-control-studies
#20
Damien M McElvenny, Laura A MacCalman, Anne Sleeuwenhoek, Alice Davis, Brian G Miller, Carla Alexander, Hilary Cowie, John W Cherrie, Kathleen J Kennedy, Nurtan A Esmen, Sarah D Zimmerman, Jeanine M Buchanich, Gary M Marsh
OBJECTIVE: The aim of this study was to characterize the mortality at two hardmetal production factories in the United Kingdom as part of an international study. METHODS: Standardized mortality ratios (SMRs) were calculated on the basis of mortality rates for England and Wales, and local rates. A nested case-control study of lung cancer was undertaken. RESULTS: The cohort comprised 1538 workers, with tracing complete for 94.4%. All-cause mortality was statistically significantly low for all cancers and nonmalignant respiratory disease, and for lung cancer was nonsignificantly low...
July 10, 2017: Journal of Occupational and Environmental Medicine
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