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https://www.readbyqxmd.com/read/28445778/the-impact-of-bilateral-vagotomy-on-the-physostigmine-induced-airway-constriction-in-ferrets
#1
Burim Neziri, Armond Daci, Shaip Krasniqi, Ramadan Sopi, Musa A Haxhiu
Vagal innervations have a great role in the respiratory function and are the main route of signal transmission from respiratory neural centers into the trachea and others conducting airways. We have investigated the role of central mechanisms related to vagal neural pathways and the cholinergic outflow in tracheobronchial smooth muscle tone and lung mechanics parameters. Parameters of lung mechanics such as lung resistance (RL), dynamic compliance (Cdyn) and pressure in bypassed tracheal segment (Ptseg) were measured before and after vagotomy and asphyxia test...
April 23, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28433648/repeated-threat-without-direct-harm-alters-metabolic-capacity-in-select-regions-that-drive-defensive-behavior
#2
D J Kim, A S Lee, A A Yttredahl, R Gómez-Rodríguez, B J Anderson
To understand the behavioral consequences of intermittent anticipatory stress resulting from threats without accompanying physiological challenges, we developed a semi-naturalistic rodent housing and foraging environment that can include threats that are unpredictable in timing. Behavior is automatically recorded while rats forage for food or water. Over three weeks, the threats have been shown to elicit risk assessment behaviors, increase defensive burying and increase adrenal gland weight. To identify brain regions activated by this manipulation, we measured cytochrome c oxidase (COX), which is tightly coupled to neural activity...
April 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28429728/a-formulated-tlr7-8-agonist-is-a-flexible-highly-potent-and-effective-adjuvant-for-pandemic-influenza-vaccines
#3
Neal Van Hoeven, Christopher B Fox, Brian Granger, Tara Evers, Sharvari W Joshi, Ghislain I Nana, Sarah C Evans, Susan Lin, Hong Liang, Li Liang, Rie Nakajima, Philip L Felgner, Richard A Bowen, Nicole Marlenee, Airn Hartwig, Susan L Baldwin, Rhea N Coler, Mark Tomai, James Elvecrog, Steven G Reed, Darrick Carter
Since 1997, highly pathogenic avian influenza viruses of the H5N1 subtype have been transmitted from avian hosts to humans. The severity of H5N1 infection in humans, as well as the sporadic nature of H5N1 outbreaks, both geographically and temporally, make generation of an effective vaccine a global public health priority. An effective H5N1 vaccine must ultimately provide protection against viruses from diverse clades. Toll-like receptor (TLR) agonist adjuvant formulations have a demonstrated ability to broaden H5N1 vaccine responses in pre-clinical models...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28416460/regional-distribution-of-cholinergic-catecholaminergic-serotonergic-and-orexinergic-neurons-in-the-brain-of-two-carnivore-species-the-feliform-banded-mongoose-mungos-mungo-and-the-caniform-domestic-ferret-mustela-putorius-furo
#4
Sashrika Pillay, Adhil Bhagwandin, Mads F Bertelsen, Nina Patzke, Gerhard Engler, Andreas K Engel, Paul R Manger
The nuclear organization of the cholinergic, catecholaminergic, serotonergic and orexinergic neurons in the brains of two species of carnivore, the banded mongoose (Mungos mungo) and domestic ferret (Mustela putorius furo), is presented. The banded mongoose belongs to the feliform suborder and the domestic ferret to the caniform suborder, having last shared a common ancestor approximately 53 million years ago; however, they have a very similar overall morphology and life history, presenting an interesting opportunity to examine the extent of evolutionary plasticity in these systems...
April 14, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28414856/radiographic-and-ultrasonographic-findings-of-the-spleen-and-abdominal-lymph-nodes-in-healthy-domestic-ferrets
#5
J N Suran, L V Latney, N R Wyre
OBJECTIVE: To describe the radiographic and ultrasonographic characteristics of the spleen and abdominal lymph nodes in clinically healthy ferrets. MATERIALS AND METHODS: Fifty-five clinically healthy ferrets were prospectively recruited for this cross-sectional study. Three-view whole body radiographs and abdominal ultrasonography were performed on awake (23 out of 55) or sedated (32 out of 55) ferrets. On radiographs splenic and abdominal lymph node visibility was assessed...
April 17, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28412405/consumption-and-exposure-assessment-to-cosmetic-products-for-children-under-2-years-old
#6
Marie-Pierre Gomez-Berrada, Anne-Sophie Ficheux, Sonia Guillou, Carole Berge, Dominique de Javel, Alain-Claude Roudot, Pierre-Jacques Ferret
Today, the use of personal care products is an integral part of daily life. Little information about children's consumption and exposure to cosmetic products is available. The aim of the study was to assess the consumption and the exposure of French babies aged 0-23 months old to seven common baby care products: shampoo, shower gel, cleansing water, cleansing milk, moisturizing cream, bottom cream and wipes. Consumption and exposure were assessed using small age intervals in order to identify any differences...
April 12, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28410584/case-crossover-study-to-examine-the-change-in-postpartum-risk-of-pulmonary-embolism-over-time
#7
Grégoire Ficheur, Alexandre Caron, Jean-Baptiste Beuscart, Laurie Ferret, Yu-Jin Jung, Charles Garabedian, Régis Beuscart, Emmanuel Chazard
BACKGROUND: Although the current guidelines recommend anticoagulation up until 6 weeks after delivery in women at high risk of venous thromboembolism (VTE), the risk of VTE may extend beyond 6 weeks. Our objective was to estimate the risk of a pulmonary embolism in successive 2-week intervals during the postpartum period. METHODS: In a population-based, case-crossover study, we analyzed the French national inpatient database from 2007 to 2013 (n = 5,517,680 singleton deliveries)...
April 14, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28408242/intravenous-immunoglobulin-protects-against-severe-pandemic-influenza-infection
#8
Steven Rockman, Sue Lowther, Sarina Camuglia, Kirsten Vandenberg, Shirley Taylor, Lou Fabri, Sylvia Miescher, Martin Pearse, Deborah Middleton, Stephen J Kent, Darryl Maher
Influenza is a highly contagious, acute, febrile respiratory infection that can have fatal consequences particularly in individuals with chronic illnesses. Sporadic reports suggest that intravenous immunoglobulin (IVIg) may be efficacious in the influenza setting. We investigated the potential of human IVIg to ameliorate influenza infection in ferrets exposed to either the pandemic H1N1/09 virus (pH1N1) or highly pathogenic avian influenza (H5N1). IVIg administered at the time of influenza virus exposure led to a significant reduction in lung viral load following pH1N1 challenge...
April 6, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28405395/pulse-of-inflammatory-proteins-in-the-pregnant-uterus-of-european-polecats-mustela-putorius-leading-to-the-time-of-implantation
#9
Heli Lindeberg, Richard J S Burchmore, Malcolm W Kennedy
Uterine secretory proteins protect the uterus and conceptuses against infection, facilitate implantation, control cellular damage resulting from implantation, and supply pre-implantation embryos with nutrients. Unlike in humans, the early conceptus of the European polecat (Mustela putorius; ferret) grows and develops free in the uterus until implanting at about 12 days after mating. We found that the proteins appearing in polecat uteri changed dramatically with time leading to implantation. Several of these proteins have also been found in pregnant uteri of other eutherian mammals...
March 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28400591/pathogenicity-and-transmission-of-a-swine-influenza-a-h6n6-virus
#10
Hailiang Sun, Bryan S Kaplan, Minhui Guan, Guihong Zhang, Jianqiang Ye, Li-Ping Long, Sherry Blackmon, Chun-Kai Yang, Meng-Jung Chiang, Hang Xie, Nan Zhao, Jim Cooley, David F Smith, Ming Liao, Carol Cardona, Lei Li, George Peng Wang, Richard Webby, Xiu-Feng Wan
Subtype H6 influenza A viruses (IAVs) are commonly detected in wild birds and domestic poultry and can infect humans. In 2010, a H6N6 virus emerged in southern China, and since then, it has caused sporadic infections among swine. We show that this virus binds to α2,6-linked and α2,3-linked sialic acids. Mutations at residues 222 (alanine to valine) and 228 (glycine to serine) of the virus hemagglutinin (HA) affected its receptor-binding properties. Experiments showed that the virus has limited transmissibility between ferrets through direct contact or through inhalation of infectious aerosolized droplets...
April 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28384062/fleas-of-black-footed-ferrets-and-their-potential-role-in-the-movement-of-plague
#11
Erica L Mize, Shaun M Grassel, Hugh B Britten
Sylvatic plague is one of the major impediments to the recovery of the black-footed ferret ( Mustela nigripes ) because it decimates their primary prey species, prairie dogs ( Cynomys spp.), and directly causes mortality in ferrets. Fleas are the primary vector of Yersinia pestis , the causative agent of sylvatic plague. The goal of this research was to better understand the flea fauna of ferrets and the factors that might influence flea abundance on ferrets. Fleas from ferrets were tested for Y. pestis in a post hoc assessment to investigate the plausibility that some ferrets could act as incidental transporter hosts of fleas infected with Y...
April 6, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28380120/molecular-epidemiology-of-influenza-a-h1n1-pdm09-hemagglutinin-gene-circulating-in-s%C3%A3-o-paulo-state-brazil-2016-anticipated-influenza-season
#12
Katia Corrêa de Oliveira Santos, Daniela Bernardes Borges da Silva, Norio Augusto Sasaki, Margarete Aparecida Benega, Rebecca Garten, Terezinha Maria de Paiva
Compared to previous years, seasonal influenza activity commenced early in São Paulo State, Brazil, Southern hemisphere during the 2016 year. In order to investigate the genetic pattern of influenza A(H1N1)pdm09 in the State of Sao Paulo a total of 479 respiratory samples, collected in January by Sentinel Surveillance Units, were screened by real-time RT-PCR. A total of 6 Influenza viruses A(H1N1)pdm09 presenting ct values ≤ 30 were sequenced following phylogenetic analysis. The present study identified the circulation of the new 6B...
April 3, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28377701/breaking-the-excitation-inhibition-balance-makes-the-cortical-network-s-space-time-dynamics-distinguish-simple-visual-scenes
#13
Per E Roland, Lars H Bonde, Lars E Forsberg, Michael A Harvey
Brain dynamics are often taken to be temporal dynamics of spiking and membrane potentials in a balanced network. Almost all evidence for a balanced network comes from recordings of cell bodies of few single neurons, neglecting more than 99% of the cortical network. We examined the space-time dynamics of excitation and inhibition simultaneously in dendrites and axons over four visual areas of ferrets exposed to visual scenes with stationary and moving objects. The visual stimuli broke the tight balance between excitation and inhibition such that the network exhibited longer episodes of net excitation subsequently balanced by net inhibition, in contrast to a balanced network...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28373731/pneumatosis-coli-in-a-domestic-ferret-mustela-putorius-furo
#14
Cédric B Larouche, Marion R Desmarchelier, Swan Specchi, Isabelle Langlois
A 4-year-old spayed female ferret was presented with acute diarrhea and partial anorexia. Pneumatosis coli and segmental enteropathy were identified by ultrasonography and radiography. Fecal culture did not identify any pathogenic bacteria. Medical management of concurrent diseases and antibiotic therapy resulted in resolution of clinical signs and pneumatosis coli.
April 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28370271/what-is-your-diagnosis-cystic-prostatic-lesion-in-a-domestic-ferret
#15
Liza Bau-Gaudreault, Carolyn N Grimes
No abstract text is available yet for this article.
April 3, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28347753/genetic-and-physicochemical-analyses-of-a-novel-ferret-hepatitis-e-virus-and-clinical-signs-of-infection-after-birth
#16
Tian-Cheng Li, Sayaka Yoshizaki, Michiyo Kataoka, Yasushi Ami, Yuriko Suzaki, Yen Hai Doan, Kei Haga, Koji Ishii, Naokazu Takeda, Takaji Wakita
A novel cluster of five ferret hepatitis E virus (HEV) strains was detected from nine laboratory ferrets (Mustela putorius furo) imported from a ferret farm in the U.S. Our detection of ferret HEV RNA and anti-HEV antibodies, and alanine aminotransferase (ALT) value assessment indicated that all of the 9 ferrets were infected with ferret HEV, and that the infection exhibited three patterns: sub-clinical infection (n=2), acute hepatitis (n=6) and persistent infection (n=1). Next-generation sequence analyses of the entire genome sequences of the five strains revealed that their nucleotide sequence identities ranged from 99...
March 25, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28347293/comparison-of-a-novel-microcrystalline-tyrosine-adjuvant-with-aluminium-hydroxide-for-enhancing-vaccination-against-seasonal-influenza
#17
M D Heath, N J Swan, A C Marriott, N J Silman, B Hallis, C Prevosto, K E Gooch, M A Skinner
BACKGROUND: Vaccination against seasonal influenza strains is recommended for "high risk" patient groups such as infants, elderly and those with respiratory or circulatory diseases. However, efficacy of the trivalent influenza vaccine (TIV) is poor in many cases and in the event of an influenza pandemic, mono-valent vaccines have been rapidly developed and deployed. One of the main issues with use of vaccine in pandemic situations is the lack of a suitable quantity of vaccine early enough during the pandemic to exert a major influence on the transmission of virus and disease outcome...
March 27, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28340892/reproductive-medicine-in-ferrets
#18
REVIEW
Vladimir Jekl, Karel Hauptman
In the United States, desexing is performed routinely in ferrets at the age of 6 weeks, therefore reproductive tract diseases are not so common. However, in Europe most ferrets are desexed when they are several months old, or they are kept as intact animals. For this reason, diseases of the reproductive organs and a prolonged estrus are far more frequent in Europe than in the United States. This article summarizes and reviews the anatomy, reproductive physiology, management of reproduction (including surgical and hormonal contraception) and reproductive tract diseases in male and female ferrets...
May 2017: Veterinary Clinics of North America. Exotic Animal Practice
https://www.readbyqxmd.com/read/28337128/connexin36-expression-in-the-mammalian-retina-a-multiple-species-comparison
#19
Tamás Kovács-Öller, Gábor Debertin, Márton Balogh, Alma Ganczer, József Orbán, Miklós Nyitrai, Lajos Balogh, Orsolya Kántor, Béla Völgyi
Much knowledge about interconnection of human retinal neurons is inferred from results on animal models. Likewise, there is a lack of information on human retinal electrical synapses/gap junctions (GJ). Connexin36 (Cx36) forms GJs in both the inner and outer plexiform layers (IPL and OPL) in most species including humans. However, a comparison of Cx36 GJ distribution in retinas of humans and popular animal models has not been presented. To this end a multiple-species comparison was performed in retinas of 12 mammals including humans to survey the Cx36 distribution...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28334159/characterization-of-white-matter-tracts-by-diffusion-mr-tractography-in-cat-and-ferret-that-have-similar-gyral-patterns
#20
Avilash Das, Emi Takahashi
The developmental relationships between gyral structures and white matter tracts have long been debated, but it is still difficult to discern whether they influence each other's development or are causally related. To explore this topic, this study used cats and ferrets as models for species that share similar gyral folding patterns and imaged with diffusion magnetic resonance imaging to compare white matter innervations in homologous gyri and other brain regions. Adult cat and ferret brains were analyzed via diffusion spectrum imaging tractography and homologous regions of interest were compared...
March 1, 2017: Cerebral Cortex
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