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https://www.readbyqxmd.com/read/29351737/identifying-genome-wide-immune-gene-variation-underlying-infectious-disease-in-wildlife-populations-a-next-generation-sequencing-approach-in-the-gopher-tortoise
#1
Jean P Elbers, Mary B Brown, Sabrina S Taylor
BACKGROUND: Infectious disease is the single greatest threat to taxa such as amphibians (chytrid fungus), bats (white nose syndrome), Tasmanian devils (devil facial tumor disease), and black-footed ferrets (canine distemper virus, plague). Although understanding the genetic basis to disease susceptibility is important for the long-term persistence of these groups, most research has been limited to major-histocompatibility and Toll-like receptor genes. To better understand the genetic basis of infectious disease susceptibility in a species of conservation concern, we sequenced all known/predicted immune response genes (i...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29330092/a-novel-double-antigen-sandwich-elisa-for-the-species-independent-detection-of-crimean-congo-hemorrhagic-fever-virus-specific-antibodies
#2
Miriam A Sas, Loic Comtet, Fabien Donnet, Marc Mertens, Zati Vatansever, Noel Tordo, Philippe Pourquier, Martin H Groschup
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection of anti-CCHFV nucleoprotein antibodies. The test requires 30 μl of serum, and results are obtained within 90 min...
January 9, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29329763/efficacy-and-safety-of-varenicline-for-smoking-cessation-in-people-living-with-hiv-in-france-anrs-144-inter-activ-a-randomised-controlled-phase-3-clinical-trial
#3
Patrick Mercié, Julie Arsandaux, Christine Katlama, Samuel Ferret, Aurélie Beuscart, Christian Spadone, Claudine Duvivier, Jacques Reynes, Nathalie Wirth, Laetitia Moinot, Antoine Bénard, David Zucman, Xavier Duval, Jean-Michel Molina, Bruno Spire, Catherine Fagard, Geneviève Chêne
BACKGROUND: Tobacco smoking is common in people living with HIV, but high-quality evidence on interventions for smoking cessation is not available in this population. We aimed to assess the efficacy and safety of varenicline with counselling to aid smoking cessation in people living with HIV. METHODS: The ANRS 144 Inter-ACTIV randomised, parallel, double-blind, multicentre, placebo-controlled phase 3 trial was done at 30 clinical hospital sites in France. People living with HIV who had smoked at least ten cigarettes per day for 1 year or longer, were motivated to stop smoking, were not dependent on another psychoactive substance, and had no history of depression or suicide attempt were eligible...
January 9, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29329410/1918-h1n1-influenza-virus-replicates-and-induces-pro-inflammatory-cytokine-responses-in-extra-respiratory-tissues-of-ferrets
#4
Emmie de Wit, Jurre Siegers, Jacqueline M Cronin, Sarah Weatherman, Judith van den Brand, Lonneke M Leijten, Peter van Run, Lineke Begeman, Henk-Jan van den Ham, Arno C Andeweg, Trenton Bushmaker, Dana P Scott, Greg Saturday, Vincent J Munster, Heinz Feldmann, Debby van Riel
Background: The 1918 Spanish H1N1 influenza pandemic was the most severe recorded influenza pandemic with an estimated 20-50 million deaths worldwide. Even though it is known that influenza viruses can cause extra-respiratory tract complications-which are often severe or even fatal- the potential contribution of extra-respiratory tissues to the pathogenesis of 1918 H1N1 virus infection has not been studied comprehensively. Methods: Here, we performed a time course study in ferrets inoculated intranasally with 1918 H1N1 virus, with special emphasis on the involvement of extra-respiratory tissues...
January 10, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29327941/infection-is-not-required-for-mucoinflammatory-lung-disease-in-cftr-knockout-ferrets
#5
Bradley H Rosen, T Idil Apak Evans, Shashanna R Moll, Jaimie S Gray, Bo Liang, Xingshen Sun, Yulong Zhang, Chandler W Jensen-Cody, Anthony M Swatek, Weihong Zhou, Nan He, Pavana G Rotti, Scott R Tyler, Nicholas W Keiser, Preston J Anderson, Leonard Brooks, Yalan Li, R Marshall Pope, Maheen Rajput, Eric A Hoffman, Kai Wang, J Kirk Harris, Kalpaj R Parekh, Katherine N Gibson-Corley, John F Engelhardt
RATIONALE: Classical interpretation of cystic fibrosis (CF) lung disease pathogenesis suggests that infection initiates disease progression, leading to an exuberant inflammatory response, excessive mucus, and ultimately bronchiectasis. While symptomatic antibiotic treatment controls lung infections early in disease, life-long bacterial residence typically ensues. Processes that control the establishment of persistent bacteria in the CF lung, and the contribution of non-infectious components to disease pathogenesis, are poorly understood...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29327449/clinical-microbiological-and-cytomorphometric-evaluation-of-low-level-laser-therapy-as-an-adjunct-to-periodontal-therapy-in-patients-with-chronic-periodontitis
#6
M S Petrović, I Y Kannosh, J M Milašin, D S Mihailović, R R Obradović, S R Bubanj, L G Kesić
OBJECTIVE: A clinical prospective study was designed to evaluate microbiological, cytomorphometric and clinical efficacy of low-level laser therapy (LLLT) as an adjunct to periodontal therapy in the treatment of chronic periodontitis. METHODS: Sixty subjects were included and randomly assigned into 2 groups: SRP (scaling root planning) group (n = 30) and LLLT + SRP group (n = 30). Clinical parameters were measured before intervention, after the fifth treatment, and after a month...
January 12, 2018: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/29325138/evidence-for-viral-interference-and-cross-reactive-protective-immunity-between-influenza-b-virus-lineages
#7
Karen L Laurie, William Horman, Louise A Carolan, Kok Fei Chan, Daniel Layton, Andrew Bean, Dhanasekaran Vijaykrishna, Patrick C Reading, James M McCaw, Ian G Barr
Background: Two influenza B virus lineages, B/Victoria and B/Yamagata, cocirculate in the human population. While the lineages are serologically distinct, cross-reactive responses to both lineages have been detected. Viral interference describes the situation whereby infection with one virus limits infection and replication of a second virus. We investigated the potential for viral interference between the influenza B virus lineages. Methods: Ferrets were infected and then challenged 3, 10, or 28 days later with pairs of influenza B/Victoria and B/Yamagata viruses...
January 6, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29325060/pathophysiological-analyses-of-leptomeningeal-heterotopia-using-gyrencephalic-mammals
#8
Naoyuki Matsumoto, Naoki Kobayashi, Natsu Uda, Miwako Hirota, Hiroshi Kawasaki
Leptomeningeal glioneuronal heterotopia (LGH) is a focal malformation of the cerebral cortex and frequently found in patients with thanatophoric dysplasia (TD). The pathophysiological mechanisms underlying LGH formation are still largely unclear because of difficulties in obtaining brain samples from human TD patients. Recently, we established a new animal model for analyzing cortical malformations of human TD by utilizing our genetic manipulation technique for gyrencephalic carnivore ferrets. Here we investigated the pathophysiological mechanisms underlying the formation of LGH using our TD ferrets...
January 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29324360/evaluation-of-the-zoonotic-potential-of-multiple-subgroups-of-clade-2-3-4-4-influenza-a-h5n8-virus
#9
Yu-Na Lee, Eun-Kyoung Lee, Byung-Min Song, Gyeong-Beom Heo, Sang-Hee Woo, Sun-Ha Cheon, Youn-Jeong Lee
Clade 2.3.4.4 H5N8 highly pathogenic avian influenza viruses (HPAIVs) have spread worldwide. Phylogenetic analysis identified two genetic groups of the H5N8 HPAIVs in South Korea; group A evolved further into four subgroups. Here, we examined the zoonotic potential, both in vivo and in vitro, of genetically distinct subgroups of H5N8 HPAIVs isolated in South Korea. When compared with other subgroups, A/mallard/Korea/H2102/2015 (H2102) virus caused relatively severe disease in mice at high doses. In ferrets, all H5N8 viruses replicated restrictively in the respiratory tract and did not induce significant clinical signs of influenza infection...
January 8, 2018: Virology
https://www.readbyqxmd.com/read/29310440/the-ferret-as-a-surgical-model-for-vocal-fold-scar-creation-and-treatment
#10
Haruka Kodama, Yoshihiko Kumai, Kohei Nishimoto, Yutaka Toya, Satoru Miyamaru, Shinobu Furushima, Eiji Yumoto
OBJECTIVES: To develop a vocal fold (VF) scarring procedure in the ferret, characterize the scars histologically, and test the injectability of the lamina propria (LP). Secondarily, to compare laryngeal anatomy of the ferret with rat and rabbit. MATERIALS AND METHODS: The larynges of 18 male ferrets were prepared by unilateral scarring, and normal larynges from 6 female Wistar rats and 5 male albino rabbits were used for comparative purposes. For scarring, the right VF were electrocauterized, ablating the entire LP...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29301313/transmission-of-human-respiratory-syncytial-virus-in-the-immunocompromised-ferret-model
#11
Leon de Waal, Saskia L Smits, Edwin J B Veldhuis Kroeze, Geert van Amerongen, Marie O Pohl, Albert D M E Osterhaus, Koert J Stittelaar
Human respiratory syncytial virus (HRSV) causes substantial morbidity and mortality in vulnerable patients, such as the very young, the elderly, and immunocompromised individuals of any age. Nosocomial transmission of HRSV remains a serious challenge in hospital settings, with intervention strategies largely limited to infection control measures, including isolation of cases, high standards of hand hygiene, cohort nursing, and use of personal protective equipment. No vaccines against HRSV are currently available, and treatment options are largely supportive care and expensive monoclonal antibody or antiviral therapy...
January 2, 2018: Viruses
https://www.readbyqxmd.com/read/29299528/human-clade-2-3-4-4-a-h5n6-influenza-virus-lacks-mammalian-adaptation-markers-and-does-not-transmit-via-the-airborne-route-between-ferrets
#12
Sander Herfst, Chris K P Mok, Judith M A van den Brand, Stefan van der Vliet, Miruna E Rosu, Monique I Spronken, Zifeng Yang, Dennis de Meulder, Pascal Lexmond, Theo M Bestebroer, J S Malik Peiris, Ron A M Fouchier, Mathilde Richard
Since their emergence in 1997, A/H5N1 influenza viruses of the A/goose/Guangdong/1/96 lineage have diversified in multiple genetic and antigenic clades upon continued circulation in poultry in several countries in Eurasia and Africa. Since 2009, reassortant viruses carrying clade 2.3.4.4 hemagglutinin (HA) and internal and neuraminidase (NA) genes of influenza A viruses of different avian origin have been detected, yielding various HA-NA combinations, such as A/H5N1, A/H5N2, A/H5N3, A/H5N5, A/H5N6, and A/H5N8...
January 2018: MSphere
https://www.readbyqxmd.com/read/29297813/prevalence-of-cystinuria-in-servals-leptailurus-serval-in-the-united-states
#13
Sarah A Cannizzo, Mindy Stinner, Suzanne Kennedy-Stoskopf
Cystinuria is a condition caused by defects in amino acid transport within the kidneys and small intestines. It has been reported in humans, dogs, domestic cats, ferrets, nondomestic canids, and nondomestic felids, including servals ( Leptailurus serval). Genetic mutations have been identified in dogs, humans, and domestic cats. Cystinuria usually follows an autosomal recessive inheritance, although it can be autosomal dominant and sex linked. The primary objective of this study was to screen urine samples dried on filter paper from captive servals in the United States for cystinuria by using the cyanide-nitroprusside screening test...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29281691/impaired-pge2-stimulated-cl-and-hco3-secretion-contributes-to-cystic-fibrosis-airway-disease
#14
Zachary M Sellers, Beate Illek, Miriam Frankenthal Figueira, Gopika Hari, Nam Soo Joo, Eric Sibley, Jackson Souza-Menezes, Marcelo M Morales, Horst Fischer, Jeffrey J Wine
BACKGROUND: Airway mucociliary clearance (MCC) is an important defense mechanism against pulmonary infections and is compromised in cystic fibrosis (CF). Cl- and HCO3- epithelial transport are integral to MCC. During pulmonary infections prostaglandin E2 (PGE2) production is abundant. AIM: To determine the effect of PGE2 on airway Cl- and HCO3- secretion and MCC in normal and CF airways. METHODS: We examined PGE2 stimulated MCC, Cl- and HCO3- secretion using ferret trachea, human bronchial epithelial cell cultures (CFBE41o- with wildtype CFTR (CFBE41 WT) or homozygous F508del CFTR (CFBE41 CF) and human normal bronchial submucosal gland cell line (Calu-3) in Ussing chambers with or without pH-stat...
2017: PloS One
https://www.readbyqxmd.com/read/29260686/characterization-of-a-feline-influenza-a-h7n2-virus
#15
Masato Hatta, Gongxun Zhong, Yuwei Gao, Noriko Nakajima, Shufang Fan, Shiho Chiba, Kathleen M Deering, Mutsumi Ito, Masaki Imai, Maki Kiso, Sumiho Nakatsu, Tiago J Lopes, Andrew J Thompson, Ryan McBride, David L Suarez, Catherine A Macken, Shigeo Sugita, Gabriele Neumann, Hideki Hasegawa, James C Paulson, Kathy L Toohey-Kurth, Yoshihiro Kawaoka
During December 2016-February 2017, influenza A viruses of the H7N2 subtype infected ≈500 cats in animal shelters in New York, NY, USA, indicating virus transmission among cats. A veterinarian who treated the animals also became infected with feline influenza A(H7N2) virus and experienced respiratory symptoms. To understand the pathogenicity and transmissibility of these feline H7N2 viruses in mammals, we characterized them in vitro and in vivo. Feline H7N2 subtype viruses replicated in the respiratory organs of mice, ferrets, and cats without causing severe lesions...
January 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29260672/mammalian-pathogenesis-and-transmission-of-avian-influenza-a-h7n9-viruses-tennessee-usa-2017
#16
Jessica A Belser, Nicole Brock, Xiangjie Sun, Joyce Jones, Natosha Zanders, Erin Hodges, Joanna A Pulit-Penaloza, David Wentworth, Terrence M Tumpey, Todd Davis, Taronna R Maines
Infections with low pathogenicity and highly pathogenic avian influenza A(H7N9) viruses affected poultry in 4 states in the southeastern United States in 2017. We evaluated pathogenicity and transmission of representative viruses in mouse and ferret models and examined replication kinetics in human respiratory tract cells. These viruses can cause respiratory infections in mammalian models.
January 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29259184/early-development-of-network-oscillations-in-the-ferret-visual-cortex
#17
Yuhui Li, Chunxiu Yu, Zhe Charles Zhou, Iain Stitt, Kristin K Sellers, John H Gilmore, Flavio Frohlich
Although oscillations during development have been characterized in a wide range of neural systems, little is known about the interaction between these network oscillations and neuronal spiking, and the interactions among different oscillation frequencies. Here we recorded the spontaneous and visual-elicited local field potential (LFP) and multi-unit activity (MUA) in the visual cortex of freely-moving juvenile ferrets before and after eye-opening. We found that both the spontaneous and visually-elicited LFP power was increased after eye-opening, especially in higher frequency bands (>30 Hz)...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29236513/depletion-of-airway-submucosal-glands-and-tp63-krt5-basal-cells-in-obliterative-bronchiolitis
#18
Anthony M Swatek, Thomas J Lynch, Adrianne K Crooke, Preston J Anderson, Scott R Tyler, Leonard Brooks, Marina Ivanovic, Julia A Klesney-Tait, Michael Eberlein, Tahuanty Pena, David K Meyerholz, John F Engelhardt, Kalpaj R Parekh
RATIONALE: Obliterative bronchiolitis (OB) is a major cause of mortality following lung transplantation. Depletion of airway stem cells (SCs) may lead to fibrosis in OB. OBJECTIVE: Two major SC compartments in airways are submucosal glands (SMGs) and surface airway TP63+(p63)/KRT5+(K5) basal cells (BCs). We hypothesized that depletion of these SC compartments occurs in OB. METHODS: Ferret orthotopic left lung transplants were used as an experimental model of OB, and findings were corroborated in human lung allografts...
December 13, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29228720/gastric-myoelectric-activity-during-cisplatin-induced-acute-and-delayed-emesis-reveals-a-temporal-impairment-of-slow-waves-in-ferrets-effects-not-reversed-by-the-glp-1-receptor-antagonist-exendin-9-39
#19
Zengbing Lu, Man P Ngan, Ge Lin, David T W Yew, Xiaodan Fan, Paul L R Andrews, John A Rudd
Preclinical studies show that the glucagon-like peptide-1 (GLP-1) receptor antagonist, exendin (9-39), can reduce acute emesis induced by cisplatin. In the present study, we investigate the effect of exendin (9-39) (100 nmol/24 h, i.c.v), on cisplatin (5 mg/kg, i.p.)-induced acute and delayed emesis and changes indicative of 'nausea' in ferrets. Cisplatin induced 37.2 ± 2.3 and 59.0 ± 7.7 retches + vomits during the 0-24 (acute) and 24-72 h (delayed) periods, respectively. Cisplatin also increased (P<0...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29223123/differentiation-of-human-blood-from-animal-blood-using-raman-spectroscopy-a-survey-of-forensically-relevant-species
#20
Kyle C Doty, Igor K Lednev
The identification of blood samples is a crucial facet of forensic investigations, particularly for violent crimes. One step in forensic serology (i.e., the analysis of bodily fluids) that is often skipped or overlooked is the determination that a bloodstain is of human or nonhuman origin. Typically, subsequent to identifying a stain as blood using a presumptive blood test, which have the propensity of providing false positive results, the stain is submitted for extraction of a DNA profile to compare with those in a database...
November 27, 2017: Forensic Science International
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