keyword
MENU ▼
Read by QxMD icon Read
search

duck infections

keyword
https://www.readbyqxmd.com/read/28193172/comparison-of-pathogenic-and-non-pathogenic-enterococcus-cecorum-strains-from-different-animal-species
#1
Arne Jung, Martin Metzner, Martin Ryll
BACKGROUND: Enterococcus cecorum (EC) infection currently is one of the most important bacterial diseases of modern broiler chickens but can also affect ducks or other avian species. However, little is known concerning pathogenesis of EC and most studies concentrate on examinations of EC strains from broilers only. The objective of this study was to compare pathogenic and commensal EC strains from different animal species concerning different phenotypic and genotypic traits. RESULTS: Pathogenic and commensal EC strains were not clearly separated from each other in a phylogenetic tree based on partial sequences of the 16S-rRNA-gene and also based on the fatty acid profile determined with gas chromatography...
February 13, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28183350/pharmacokinetic-and-pharmacodynamic-modeling-of-sarafloxacin-against-avian-pathogenic-escherichia-coli-in-muscovy-ducks
#2
Yang Yu, Yu Feng Zhou, Jian Sun, Wei Shi, Xiao Ping Liao, Ya Hong Liu
BACKGROUND: This study focused on utilizing pharmacokinetics/pharmacodynamics (PK/PD) modeling to optimize therapeutic dosage regimens of sarafloxacin against avian pathogenic Escherichia. coli O78 strain in Muscovy ducks. The ex vivo PK/PD study of sarafloxacin was conducted in Muscovy ducks after intravenous (i.v.) and oral (p.o.) administrations at a single dose of 10 mg/kg bodyweight (BW). The serum samples were analyzed by reverse phase high-performance liquid chromatography (RP-HPLC) using a fluorescence detection method...
February 10, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28166822/disruption-of-the-m949_rs01915-gene-changed-the-bacterial-lipopolysaccharide-pattern-pathogenicity-and-gene-expression-of-riemerella-anatipestifer
#3
Yafeng Dou, Xiaolan Wang, Guijing Yu, Shaohui Wang, Mingxing Tian, Jingjing Qi, Tao Li, Chan Ding, Shengqing Yu
Riemerella anatipestifer is an important pathogen that causes septicemia anserum exsudativa in ducks. Lipopolysaccharide (LPS) is considered to be a major virulence factor of R. anatipestifer. To identify genes involved in LPS biosynthesis, we screened a library of random Tn4351 transposon mutants using a monoclonal antibody against R. anatipestifer serotype 1 LPS (anti-LPS MAb). A mutant strain RA1067 which lost the reactivity in an indirect ELISA was obtained. Southern blot and sequencing analyses indicated a single Tn4351 was inserted at 116 bp in the M949_RS01915 gene in the RA1067 chromosomal DNA...
February 6, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28161961/genome-wide-gene-expression-pattern-underlying-differential-host-response-to-high-or-low-pathogenic-h5n1-avian-influenza-virus-in-ducks
#4
A Kumar, P Vijayakumar, P N Gandhale, P B Ranaware, H Kumar, D D Kulkarni, A A Raut, A Mishra
The differences in the influenza viral pathogenesis observed between different pathogenic strains are associated with distinct properties of virus strains and the host immune responses. In order to determine the differences in the duck immune response against two different pathogenic strains, we studied genome-wide host immune gene response of ducks infected with A/duck/India/02CA10/2011 and A/duck/Tripura/103597/2008 H5N1 viruses using custom-designed microarray. A/duck/India/02CA10/2011 is highly pathogenic virus (HP) to ducks, whereas A/duck/Tripura/103597/2008 is a low pathogenic (LP) virus strain...
February 6, 2017: Acta Virologica
https://www.readbyqxmd.com/read/28160850/in-vitro-and-in-vivo-antimalarial-potential-of-oleoresin-obtained-from-copaifera-reticulata-ducke-fabaceae-in-the-brazilian-amazon-rainforest
#5
Giovana A G de Souza, Nazaré C da Silva, Juarez de Souza, Karen R M de Oliveira, Amanda L da Fonseca, Leopoldo C Baratto, Elaine C P de Oliveira, Fernando de Pilla Varotti, Waldiney P Moraes
BACKGROUND: In view of the wide variety of the flora of the Amazon region, many plants have been studied in the search for new antimalarial agents. Copaifera reticulata is a tree distributed throughout the Amazon region which contains an oleoresin rich in sesquiterpenes and diterpenes with β-caryophyllene as the major compound. The oleoresin has demonstrated antiparasitic activity against Leishmania amazonensis. Because of this previously reported activity, this oleoresin would be expected to also have antimalarial activity...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28159240/efficacy-assessment-of-an-inactivated-tembusu-virus-vaccine-candidate-in-ducks
#6
Lijiao Zhang, Zhanhong Li, Qingshui Zhang, Mengxu Sun, Shuang Li, Wenliang Su, Xueying Hu, Weiyong He, Jingliang Su
Duck Tembusu virus (TMUV) is a recently identified pathogen that causes severe egg drop and neurological disease in domestic duck and goose flocks. The infection has spread across the China mainland since its outbreak in 2010. Effective vaccines are needed to fight the disease. In this work, we describe the development and laboratory assessment of a cell culture-derived, inactivated duck TMUV vaccine. The TMUV-JXSP strain was successfully propagated on a baby hamster kidney cell line (BHK-21), inactivated with beta-propiolactone (BPL) and emulsified with mineral oil...
February 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28145811/investigating-the-potential-role-of-north-american-animals-as-hosts-for-zika-virus
#7
Izabela K Ragan, Emily L Blizzard, Paul Gordy, Richard A Bowen
The recent emergence of the mosquito-borne Zika virus (ZIKV) in the Americas has become a global public health concern. We describe a series of experimental infections designed to investigate whether animals within certain taxonomic groups in North America have the potential to serve as ZIKV amplifying or maintenance hosts. Species investigated included armadillos, cottontail rabbits, goats, mink, chickens, pigeons, ground hogs, deer mice, cattle, raccoons, ducks, Syrian Golden hamsters, garter snakes, leopard frogs, house sparrows, and pigs...
March 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28110788/in-vitro-characterization-of-the-novel-h3n1-reassortant-influenza-viruses-from-quail
#8
Aunyaratana Thontiravong, Wikanda Tunterak, Kanisak Oraveerakul, Alongkorn Amonsin
Quail is considered as an intermediate host for generation of the novel reassortant influenza A viruses (IAVs). In this study, we evaluated the replication ability of the three novel H3N1 reassortant viruses recovered from pandemic H1N1 2009 (pH1N1) and duck H3N2 (dkH3N2) co-infected quail generated from our previous study in embryonated chicken eggs, mammalian (MDCK) and human lung derived (A549) cells. Our study demonstrated that all of the reassortant viruses replicated efficiently in avian and mammalian cells, albeit with slightly lower titers than the parental viruses...
February 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28109707/potential-risk-of-repeated-nasal-vaccination-that-induces-allergic-reaction-with-mucosal-ige-and-airway-eosinophilic-infiltration-in-cynomolgus-macaques-infected-with-h5n1-highly-pathogenic-avian-influenza-virus
#9
Misako Nakayama, Yasushi Itoh, Shintaro Shichinohe, Rumi Nakabayashi, Hirohito Ishigaki, Yoshihiro Sakoda, Quynh Mai Le, Yoshihiro Kawaoka, Hiroshi Kida, Kazumasa Ogasawara
The efficacy and detrimental effect of mucosal vaccination with an inactivated influenza vaccine were examined in a macaque model by intranasal administration with small amounts of inactivated whole virus particles and challenge by a human-derived H5N1 highly pathogenic avian influenza virus infection. Repeated nasal inoculation with the whole particle vaccine of an inactivated virus, A/duck/Hokkaido/Vac-3/2007 (H5N1) (Vac-3), induced antigen-specific IgA and IgG antibody production in nasal swabs and plasma...
January 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28092966/avian-influenza-prevalence-among-hunter-harvested-birds-in-a-remote-canadian-first-nation-community
#10
Eric N Liberda, Richard Meldrum, Nadia A Charania, Robert Davey, Leonard Js Tsuji
INTRODUCTION: Avian influenza virus (AIV) prevalence has been associated with wild game and other bird species. The contamination of these birds may pose a greater risk to those who regularly hunt and consumed infected species. Due to resident concerns communicated by local Band Council, hunter-harvested birds from a remote First Nation community in subArctic Ontario, Canada were assessed for AIV. Hunters, and especially those who live a subsistence lifestyle, are at higher risk of AIV exposure due to their increased contact with wild birds, which represent an important part of their diet...
January 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/28092616/generation-and-characterization-of-a-monoclonal-antibody-against-duck-tembusu-virus-envelope-protein
#11
K Han, D Zhao, Y Liu, Q Liu, X Huang, J Yang, K Bi, T Xu, Y Li
Duck Tembusu virus (DTMUV) is a newly emerging pathogenic flavivirus that has caused massive economic losses to the duck industry in China. Envelope (E) protein of DTMUV is an important structural protein, which is able to induce protective immune response in target animals and can be used as specific serological diagnosis tool. In this study, a novel monoclonal antibody, designated mAb 3E9, was generated against DTMUV E protein. It is positive in indirect ELISA against both His-E protein and the purified whole viral antigen...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28065477/quantitative-analysis-of-the-yield-of-avian-h7-influenza-virus-haemagglutinin-protein-produced-in-silkworm-pupae-with-the-use-of-the-codon-optimized-dna-a-possible-oral-vaccine
#12
Kuniaki Nerome, Sayaka Matsuda, Kenichi Maegawa, Shigeo Sugita, Kazumichi Kuroda, Kazunori Kawasaki, Reiko Nerome
In this study, we aimed to quantitatively compare the increased production of three H7 influenza virus-like particle (VLP) haemagglutinin (HA) with the use of a codon-optimized single HA gene in silkworm pupae. Recombinant baculovirus (Korea H7-BmNPV) could produce 0.40 million HA units per pupa, corresponding to 1832μg protein. The yield of the HA produced in larva was estimated to be approximately 0.31 million HA units per larva, and there were no significant differences between the three HA proteins. We could establish efficient recovery system of HA production in larvae and pupae with the use of three cycles sonication methods...
February 1, 2017: Vaccine
https://www.readbyqxmd.com/read/28062008/experimental-infection-of-mandarin-duck-with-highly-pathogenic-avian-influenza-a-h5n8-and-h5n1-viruses
#13
Hyun-Mi Kang, Eun-Kyoung Lee, Byung-Min Song, Gyeong-Beom Heo, Joojin Jung, Il Jang, You-Chan Bae, Suk Chan Jung, Youn-Jeong Lee
A highly pathogenic avian influenza (HPAI) H5N8 virus was first detected in poultry and wild birds in South Korea in January 2014. Here, we determined the pathogenicity and transmissibility of three different clades of H5 viruses in mandarin ducks to examine the potential for wild bird infection. H5N8 (clade 2.3.4.4) replicated more efficiently in the upper and lower respiratory tract of mandarin ducks than two previously identified H5N1 virus clades (clades 2.2 and 2.3.2.1). However, none of the mandarin ducks infected with H5N8 and H5N1 viruses showed severe clinical signs or mortality, and gross lesions were only observed in a few tissues...
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28054599/estimating-risks-of-inapparent-avian-exposure-for-human-infection-avian-influenza-virus-a-h7n9-in-zhejiang-province-china
#14
Erjia Ge, Renjie Zhang, Dengkui Li, Xiaolin Wei, Xiaomeng Wang, Poh-Chin Lai
Inapparent avian exposure was suspected for the sporadic infection of avian influenza A(H7N9) occurring in China. This type of exposure is usually unnoticed and difficult to model and measure. Infected poultry with avian influenza H7N9 virus typically remains asymptomatic, which may facilitate infection through inapparent poultry/bird exposure, especially in a country with widespread practice of backyard poultry. The present study proposed a novel approach that integrated ecological and case-control methods to quantify the risk of inapparent avian exposure on human H7N9 infection...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28038465/viral-host-interaction-in-kidney-reveals-strategies-to-escape-host-immunity-and-persistently-shed-virus-to-the-urine
#15
Xumin Ou, Sai Mao, Yifan Jiang, Shengyong Zhang, Chen Ke, Guangpeng Ma, Anchun Cheng, Mingshu Wang, Dekang Zhu, Shun Chen, Renyong Jia, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen
Hepatitis A virus is one of five types of hepatotropic viruses that cause human liver disease. A similar liver disease is also identified in ducks caused by Duck Hepatitis A virus (DHAV). Notably, many types of hepatotropic viruses can be detected in urine. However, how those viruses enter into the urine is largely unexplored. To elucidate the potential mechanism, we used the avian hepatotropic virus to investigate replication strategies and immune responses in kidney until 280 days after infection. Immunohistochemistry and qPCR were used to detect viral distribution and copies in the kidney...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28008822/autophagy-activated-by-duck-enteritis-virus-infection-positively-affects-its-replication
#16
Lili Zhao, Hai-Chang Yin, Si-Qi Li, Yin-Jie Niu, Xin-Jie Jiang, Li-Jing Xu, Tao-Feng Lu, Ling-Xia Han, Sheng-Wang Liu, Hong-Yan Chen
Duck enteritis virus (DEV) is an acute, septic, sexually transmitted disease that occurs in ducks, geese, and other poultry. Autophagy is an evolutionarily ancient pathway that is important in many viral infections. Despite extensive study, the interplay between DEV and autophagy of host cells is not clearly understood. In this study, we found that DEV infection triggers autophagy in duck embryo fibroblast (DEF) cells, as demonstrated by the appearance of autophagosome-like double or single-membrane vesicles in the cytoplasm of host cells and the numbers of GFP-LC3 dots...
December 23, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27997047/no-evidence-for-homosubtypic-immunity-of-influenza-h3-in-mallards-following-vaccination-in-a-natural-experimental-system
#17
M Wille, N Latorre-Margalef, C Tolf, D E Stallknecht, J Waldenström
The Mallard (Anas platyrhynchos) is an important reservoir species for influenza A viruses (IAV), and in this host, prevalence and virus diversity are high. Studies have demonstrated the presence of homosubtypic immunity, where individuals are unlikely to be re-infected with the same subtype within an autumn season. Further, evidence for heterosubtypic immunity exists, whereby immune responses specific for one subtype offers partial or complete protection against related HA subtypes. We utilized a natural-experimental system to determine if homo- or heterospecific immunity could be induced following experimental vaccination...
December 20, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27974824/induction-of-a-robust-immunity-response-against-novel-duck-reovirus-in-ducklings-using-a-subunit-vaccine-of-sigma-c-protein
#18
Zhuangli Bi, Yingqi Zhu, Zongyan Chen, Chuanfeng Li, Yong Wang, Guijun Wang, Guangqing Liu
Novel duck reovirus (NDRV) disease emerged in China in 2011 and continues to cause high morbidity and about 5.0 to 50% mortality in ducklings. Currently there are no approved vaccines for the virus. This study aimed to assess the efficacy of a new vaccine created from the baculovirus and sigma C gene against NDRV. In this study, a recombinant baculovirus containing the sigma C gene was constructed, and the purified protein was used as a vaccine candidate in ducklings. The efficacy of sigma C vaccine was estimated according to humoral immune responses, cellular immune response and protection against NDRV challenge...
December 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27966289/an-epidemiological-study-of-avian-influenza-a-h5-virus-in-nomadic-ducks-and-their-raising-practices-in-northeastern-bangladesh-2011-2012
#19
Shamim Sarkar, Salah Uddin Khan, Andrea Mikolon, Mohammad Ziaur Rahman, Jaynal Abedin, Nord Zeidner, Katherine Sturm-Ramirez, Stephen P Luby
BACKGROUND: In Bangladesh, nomadic duck flocks are groups of domestic ducks reared for egg production that are moved to access feeding sites beyond their owners' village boundaries and are housed overnight in portable enclosures in scavenging areas. The objectives of this study were to measure the prevalence of influenza A virus RNA and H5-specific antibodies in nomadic ducks and to characterize nomadic duck raising practices in northeastern Bangladesh. METHODS: We tested duck egg yolk specimens by competitive ELISA to detect antibodies against avian influenza A (H5) and environmental fecal samples by real-time reverse-transcription polymerase chain reaction (rRT-PCR) to detect influenza A virus RNA and H5 subtype...
December 14, 2016: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/27927057/treatment-effect-of-a-flavonoid-prescription-on-duck-virus-hepatitis-by-its-hepatoprotective-and-antioxidative-ability
#20
Yun Chen, Ling Zeng, Yu Lu, Yulan Yang, Meiyun Xu, Yixuan Wang, Jiaguo Liu
CONTEXT: Duck virus hepatitis (DVH) caused by duck hepatitis A virus type 1 (DHAV-1) is an acute and lethal disease of young ducklings. However, there is still no effective drug to treat DVH. OBJECTIVE: This study assessed the curative effect on DVH of a flavonoid prescription baicalin-linarin-icariin-notoginsenoside R1 (BLIN) as well as the hepatoprotective and antioxidative effects of BLIN. MATERIALS AND METHODS: MTT method was used to test the anti-DHAV-1 ability of BLIN in vitro...
December 2017: Pharmaceutical Biology
keyword
keyword
78850
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"