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https://www.readbyqxmd.com/read/27932874/bronchodilator-response-of-advanced-lung-function-parameters-depending-on-copd-severity
#1
Linnea Jarenbäck, Göran Eriksson, Stefan Peterson, Jaro Ankerst, Leif Bjermer, Ellen Tufvesson
BACKGROUND: COPD is defined as partly irreversible airflow obstruction. The response pattern of bronchodilators has not been followed in advanced lung function parameters. PURPOSE: The aim of this study was to investigate bronchodilator response pattern in advanced lung function parameters in a continuous fashion along forced expiratory volume in 1 second (FEV1) percent predicted (%p) in COPD patients and controls. PATIENTS AND METHODS: Eighty-one smokers/ex-smokers (41 controls and 40 COPD) performed spirometry, body plethysmography, impulse oscillometry and single-breath helium dilution carbon monoxide diffusion at baseline, after salbutamol inhalation and then after an additional inhalation of ipratropium...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27926791/high-prevalence-of-mitf-staining-in-undifferentiated-pleomorphic-sarcoma-caution-in-use-of-melanocytic-markers-in-sarcoma
#2
Bonnie Choy, Elizabeth Hyjek, Anthony G Montag, Peter Pytel, Rex Haydon, Hue H Luu, Chao Jie Zhen, Bradley C Long, Sabah Kadri, Jeremy P Segal, Larissa V Furtado, Nicole A Cipriani
AIMS: Diagnosis of undifferentiated pleomorphic sarcoma (UPS) may be challenging, as other lesions with undifferentiated spindle cell morphology must be excluded, including melanoma. Microphthalmia-associated transcription factor (MiTF) stains nevi and epithelioid melanomas, as well as some mesenchymal neoplasms. We evaluated the prevalence of MiTF and melanocytic markers in UPS and a subset of atypical fibroxanthoma (AFX). METHODS AND RESULTS: MiTF, SOX10, Melan-A, HMB45, and S100 immunostains were performed on resection specimens from 19 UPS and 5 AFX...
December 7, 2016: Histopathology
https://www.readbyqxmd.com/read/27922344/predictors-of-mortality-in-a-paediatric-intensive-care-unit-in-kigali-rwanda
#3
Rosine Nyirasafari, Mark H Corden, Angélique Charlie Karambizi, Jean Claude Kabayiza, Jean Damascene Makuza, Rex Wong, Michael F Canarie
BACKGROUND: The enormous burden of critical illness in resource-limited settings has led to a growing interest in paediatric critical care in these regions. However, published data on the practice of critical care and patient outcomes in these settings are scant. OBJECTIVE: This study sought to identify risk factors associated with mortality in the newly established Paediatric Intensive Care Unit (PICU) at Kigali University Teaching Hospital (KUTH) in Rwanda and test the predictive ability of a newly devised mortality risk score, the modified PRISM (MP) score...
December 6, 2016: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/27919180/investigation-of-a-mortality-cluster-in-wild-adult-yellow-eyed-penguins-megadyptes-antipodes-at-otago-peninsula-new-zealand
#4
Brett Gartrell, David Agnew, Maurice Alley, Tim Carpenter, Hye Jeong Ha, Laryssa Howe, Stuart Hunter, Kate McInnes, Rex Munday, Roe Wendi, Young Melanie
We investigated an epidemic mortality cluster of yellow-eyed penguins (Megadyptes antipodes) that involved 67 moribund or dead birds found on various beaches of the Otago Peninsula, New Zealand, between January 21 and March 20, 2013. Twenty-four carcases were examined postmortem. Histological lesions of pulmonary, hepatic and splenic erythrophagocytosis and haemosiderosis were found in 23 of 24 birds. Fifteen birds also had haemoglobin-like protein droplets within renal tubular epithelial cells. Despite consistent histological lesions, a cause of death could not be established...
December 6, 2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27908051/internal-tides-and-deep-diel-fades-in-acoustic-intensity
#5
Andrew W White, Frank S Henyey, Rex K Andrew, James A Mercer, Peter F Worcester, Matthew A Dzieciuch, John A Colosi
A mechanism is presented by which the observed acoustic intensity is made to vary due to changes in the acoustic path that are caused by internal-tide vertical fluid displacements. The position in range and depth of large-scale caustic structure is determined by the background sound-speed profile. Internal tides cause a deformation of the background profile, changing the positions of the caustic structures-which can introduce intensity changes at a distant receiver. Gradual fades in the acoustic intensity occurring over timescales similar to those of the tides were measured during a low-frequency (284-Hz) acoustic scattering experiment in the Philippine Sea in 2009 [White et al...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27900319/spleen-dependent-immune-protection-elicited-by-cpg-adjuvanted-reticulocyte-derived-exosomes-from-malaria-infection-is-associated-with-changes-in-t-cell-subsets-distribution
#6
Lorena Martín-Jaular, Armando de Menezes-Neto, Marta Monguió-Tortajada, Aleix Elizalde-Torrent, Míriam Díaz-Varela, Carmen Fernández-Becerra, Francesc E Borras, Maria Montoya, Hernando A Del Portillo
Reticulocyte-derived exosomes (rex) are 30-100 nm membrane vesicles of endocytic origin released during the maturation of reticulocytes to erythrocytes upon fusion of multivesicular bodies with the plasma membrane. Combination of CpG-ODN with rex obtained from BALB/c mice infected with the reticulocyte-prone non-lethal P. yoelii 17X malaria strain (rexPy), had been shown to induce survival and long lasting protection. Here, we show that splenectomized mice are not protected upon rexPy+CpG inmunizations and that protection is restored upon passive transfer of splenocytes obtained from animals immunized with rexPy+CpG...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27899035/delayed-seroconversion-to-htlv-ii-is-associated-with-a-stop-codon-mutation-in-the-pol-gene
#7
Syamalima Dube, Dipak K Dube, Lynn Abbott, Jordan Glaser, Bernard Poiesz
A known HIV-1 positive intravenous drug user was found to be HTLV-II DNA positive by PCR but seronegative in a screening ELISA assay. He was consistently DNA positive but took two years to fully seroconvert. Sequencing of the HTLV-II strain in his cultured T-lymphocytes indicated that it is a prototypical type A strain with no major differences in the LTR DNA sequence, nor major amino acid differences in the Gag, Env, Tax and Rex proteins. However, a mutation in its pol gene created a stop codon at amino acid 543 of the Pol protein, a region which encodes for the RNase function...
November 29, 2016: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/27898815/germplasm-architecture-revealed-through-chromosomal-effects-for-quantitative-traits-in-maize
#8
Rex Bernardo, Addie M Thompson
Germplasm architecture refers to how favorable alleles for a given trait are distributed across the genome in a germplasm collection. Our objective was to assess germplasm architecture for quantitative traits among US maize ( L.) inbreds. A total of 271 inbreds were genotyped at 28,626 single nucleotide polymorphism (SNP) loci and phenotyped for anthesis date, plant height, starch and protein concentration, and resistance to northern corn leaf blight (NCLB, caused by ). Chromosomal effects were calculated as the sum of the trait effects of SNP alleles carried on a specific chromosome by an inbred...
July 2016: Plant Genome
https://www.readbyqxmd.com/read/27896406/evaluation-of-rex-shunt-on-cavernous-transformation-of-the-portal-vein-in-children
#9
Ruo-Yi Wang, Jun-Feng Wang, Xiao-Gang Sun, Qian Liu, Jia-Long Xu, Qi-Gang Lv, Wei-Xiu Chen, Jin-Liang Li
BACKGROUND: Children with cavernous transformation of the portal vein (CTPV) develop severe complications from prehepatic portal hypertension, such as recurrent variceal bleeding and thrombocytopenia. In this study, we reported the results of 30 children with symptomatic CTPV that were treated by a Rex shunt. The effectiveness of this surgical approach was evaluated. METHODS: A retrospective review was performed of 30 children aged between 3 and 18 years with CTPV, who underwent a Rex shunt between 2008 and 2015...
November 28, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27888225/use-of-the-pipeline-embolization-device-for-recurrent-and-residual-cerebral-aneurysms-a-safety-and-efficacy-analysis-with-short-term-follow-up
#10
Anna Luisa Kühn, Katyucia de Macedo Rodrigues, J Diego Lozano, David E Rex, Francesco Massari, Takamitsu Tamura, Mary Howk, Christopher Brooks, Jenna L'Heureux, Matthew J Gounis, Ajay K Wakhloo, Ajit S Puri
OBJECTIVE: Evaluation of the safety and efficacy of the Pipeline embolization device (PED) when used as second-line treatment for recurrent or residual, pretreated ruptured and unruptured intracranial aneurysms (IAs). METHODS: Retrospective review of our database to include all patients who were treated with a PED for recurrent or residual IAs following surgical clipping or coiling. We evaluated neurological outcome and angiograms at discharge, 6- and 12-months' follow-up and assessed intimal hyperplasia at follow-up...
November 25, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27886571/apigenin-inhibited-hypoxia-induced-stem-cell-marker-expression-in-a-head-and-neck-squamous-cell-carcinoma-cell-line
#11
Yuwaporn Ketkaew, Thanaphum Osathanon, Prasit Pavasant, Sireerat Sooampon
OBJECTIVE: Cancer stem cells contribute to tumor recurrence, and a hypoxic environment is critical for maintaining cancer stem cells. Apigenin is a natural product with anticancer activity. However, the effect of apigenin on cancer stem cells remains unclear. Our aim was to investigate the effect of apigenin on cancer stem cell marker expression in head and neck squamous cell carcinoma cells under hypoxia. DESIGN: We used three head and neck squamous cell carcinoma cell lines; HN-8, HN-30, and HSC-3...
November 15, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27884655/zika-virus-infection-in-dexamethasone-immunosuppressed-mice-demonstrating-disseminated-infection-with-multi-organ-involvement-including-orchitis-effectively-treated-by-recombinant-type-i-interferons
#12
Jasper Fuk-Woo Chan, Anna Jinxia Zhang, Chris Chung-Sing Chan, Cyril Chik-Yan Yip, Winger Wing-Nga Mak, Houshun Zhu, Vincent Kwok-Man Poon, Kah-Meng Tee, Zheng Zhu, Jian-Piao Cai, Jessica Oi-Ling Tsang, Kenn Ka-Heng Chik, Feifei Yin, Kwok-Hung Chan, Kin-Hang Kok, Dong-Yan Jin, Rex Kwok-Him Au-Yeung, Kwok-Yung Yuen
BACKGROUND: Disseminated or fatal Zika virus (ZIKV) infections were reported in immunosuppressed patients. Existing interferon-signaling/receptor-deficient mouse models may not be suitable for evaluating treatment effects of recombinant interferons. METHODS: We developed a novel mouse model for ZIKV infection by immunosuppressing BALB/c mice with dexamethasone. RESULTS: Dexamethasone-immunosuppressed male mice (6-8weeks) developed disseminated infection as evidenced by the detection of ZIKV-NS1 protein expression and high viral loads in multiple organs...
November 12, 2016: EBioMedicine
https://www.readbyqxmd.com/read/27882867/subtyping-of-cryptosporidium-cuniculus-and-genotyping-of-enterocytozoon-bieneusi-in-rabbits-in-two-farms-in-heilongjiang-province-china
#13
Ziyin Yang, Wei Zhao, Yujuan Shen, Weizhe Zhang, Ying Shi, Guangxu Ren, Di Yang, Hong Ling, Fengkun Yang, Aiqin Liu, Jianping Cao
Cryptosporidium spp. and Enterocytozoon bieneusi are two prevalent opportunistic pathogens in humans and animals. Currently, few data are available on genetic characterization of both pathogens in rabbits in China. The aim of the present study was to understand prevalence and genetic characterization of Cryptosporidium spp. and E. bieneusi in rabbits. We collected 215 fecal samples from 150 Rex rabbits and 65 New Zealand White rabbits on two different farms in Heilongjiang Province, China. Cryptosporidium spp...
2016: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/27876465/is-there-still-a-role-for-irrigation-and-debridement-with-liner-exchange-in-acute-periprosthetic-total-knee-infection
#14
Andrés F Duque, Zachary D Post, Rex W Lutz, Fabio R Orozco, Sergio H Pulido, Alvin C Ong
BACKGROUND: Periprosthetic joint infection (PJI) is an important cause of failure in total knee arthroplasty. Irrigation and debridement including liner exchange (I&D/L) success rates have varied for acute PJI. The purpose of this study is to present results of a specific protocol for I&D/L with retention of total knee arthroplasty components. METHODS: Sixty-seven consecutive I&D/L patients were retrospectively evaluated. Inclusion criteria for I&D/L were as follows: fewer than 3 weeks of symptoms, no immunologic compromise, intact soft tissue sleeve, and well-fixed components...
November 1, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27876046/increasing-insecticide-resistance-in-anopheles-funestus-and-anopheles-arabiensis-in-malawi-2011-2015
#15
Themba Mzilahowa, Martin Chiumia, Rex B Mbewe, Veronica T Uzalili, Madalitso Luka-Banda, Anna Kutengule, Don P Mathanga, Doreen Ali, John Chiphwanya, John Zoya, Shadreck Mulenga, Wilfred Dodoli, Jennifer Bergeson-Lockwood, Peter Troell, Jessica Oyugi, Kim Lindblade, John E Gimnig
BACKGROUND: Susceptibility of principal Anopheles malaria vectors to common insecticides was monitored over a 5-year period across Malawi to inform and guide the national malaria control programme. METHODS: Adult blood-fed Anopheles spp. and larvae were collected from multiple sites in sixteen districts across the country between 2011 and 2015. First generation (F1) progeny aged 2-5 days old were tested for susceptibility, using standard WHO procedures, against pyrethroids (permethrin and deltamethrin), carbamates (bendiocarb and propoxur), organophosphates (malathion and pirimiphos-methyl) and an organochlorine (DDT)...
November 22, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27866072/general-expressions-for-r1%C3%AF-relaxation-for-n-site-chemical-exchange-and-the-special-case-of-linear-chains
#16
Hans Koss, Mark Rance, Arthur G Palmer
Exploration of dynamic processes in proteins and nucleic acids by spin-locking NMR experiments has been facilitated by the development of theoretical expressions for the R1ρ relaxation rate constant covering a variety of kinetic situations. Herein, we present a generalized approximation to the chemical exchange, Rex, component of R1ρ for arbitrary kinetic schemes, assuming the presence of a dominant major site population, derived from the negative reciprocal trace of the inverse Bloch-McConnell evolution matrix...
October 27, 2016: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/27865873/signaling-via-g-proteins-mediates-tumorigenic-effects-of-gpr87
#17
Kristine Niss Arfelt, Suzan Fares, Alexander H Sparre-Ulrich, Gertrud M Hjortø, Lærke S Gasbjerg, Ann-Sofie Mølleskov-Jensen, Tau Benned-Jensen, Mette M Rosenkilde
G protein-coupled receptors (GPCRs) constitute a large protein family of seven transmembrane (7TM) spanning proteins that regulate multiple physiological functions. GPR87 is overexpressed in several cancers and plays a role in tumor cell survival. Here, the basal activity of GPR87 was investigated in transiently transfected HEK293 cells, revealing ligand-independent coupling to Gαi, Gαq and Gα12/13. Furthermore, GPR87 showed a ligand-independent G protein-dependent activation of the downstream transcription factors CREB, NFκB, NFAT and SRE...
November 16, 2016: Cellular Signalling
https://www.readbyqxmd.com/read/27856505/transcriptomic-changes-throughout-post-hatch-development-in-gallus-gallus-pituitary
#18
Elizabeth M Pritchett, Susan J Lamont, Carl J Schmidt
The pituitary gland is a neuroendocrine organ that works closely with the hypothalamus to affect multiple processes within the body including the stress response, metabolism, growth, and immune function. Relative tissue expression (rEx) is a transcriptome analysis method that compares the genes expressed in a particular tissue to the genes expressed in all other tissues with available data. Using rEx, the aim of this study was to identify genes that are uniquely or more abundantly expressed in the pituitary when compared to all other collected chicken tissues...
November 17, 2016: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/27853914/non-dermatophyte-dermatoses-mimicking-dermatophytoses-in-animals
#19
Didier Pin
Dermatophytoses in animals are fungal diseases of the skin caused by dermatophyte fungi of the genus Microsporum or Trichophyton. Because the infection is generally follicular, the most common clinical sign is one or many circular areas of alopecia with variable erythema, scaling and crusting, and the primary differential diagnoses are follicular infections, such as bacterial folliculitis and demodicosis. Although dermatophyte folliculitis or ringworm is the most commonly observed lesion of dermatophytoses in animals, other presentations may be observed according to the host species and the dermatophyte involved: dermatophyte folliculitis or ringworm, scaling and crusting in dermatophytosis due to Microsporum persicolor, nodule in case of kerion or mycetoma, matted hairs, seborrheic dermatosis or miliary dermatitis in cats, generalized exfoliative dermatoses in dogs, cats and horses, superficial non-follicular pustules, papules and macules in the Devon Rex cat, pruritic dermatophytoses in dogs, cats and horses, and onychomycosis in dogs, cats and horses...
November 16, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27845707/good-science-good-sense-and-good-sensibilities-the-three-ss-of-carol-newton
#20
Adrian J Smith, Penny Hawkins
The Three Rs principle of Replacement, Reduction and Refinement developed by William M. S. Russell and Rex L. Burch in the 1950s has achieved worldwide recognition as a means of reducing the impact of science on animals and improving their welfare. However, application of the Three Rs is still far from universal, and evidence-based methods to implement the Three Rs are still lacking in many areas of laboratory animal science. The purpose of this paper is to create interest in a less well-known but equally useful principle that complements the Three Rs, which was proposed by the American biomathematician Carol M...
November 11, 2016: Animals: An Open Access Journal From MDPI
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