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https://www.readbyqxmd.com/read/28640745/the-amino-terminal-subdomain-of-glycoprotein-gc-of-schmallenberg-virus-disulfide-bonding-and-structural-determinants-of-neutralization
#1
Gleyder Roman-Sosa, Axel Karger, Franziska Kraatz, Andrea Aebischer, Kerstin Wernike, Pavlo Maksimov, Christopher H Lillig, Ilona Reimann, Emiliana Brocchi, Markus Keller, Martin Beer
Orthobunyaviruses are enveloped viruses that can cause human and animal diseases. A novel and major member is the Schmallenberg virus (SBV), the etiological agent of an emerging disease of ruminants that has been spreading all over Europe since 2011. The glycoproteins Gn and Gc of orthobunyaviruses mediate the viral entry, and specifically Gc is a major target for the humoral immune response. For example, the N terminal subdomain of the SBV glycoprotein Gc is targeted by neutralizing monoclonal antibodies that recognize conformational epitopes...
June 22, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28637223/millions-of-years-behind-slow-adaptation-of-ruminants-to-grasslands
#2
Olja Toljagic, Kjetil L Voje, Michael Matschiner, Lee Hsiang Liow, Thomas F Hansen
The Late-Cretaceous appearance of grasses, followed by the Cenozoic advancement of grasslands as dominant biomes, has contributed to the evolution of a range of specialized herbivores adapted to new diets, as well as to increasingly open and arid habitats. Many mammals including ruminants, the most diversified ungulate suborder, evolved high-crowned (hypsodont) teeth as an adaptation to tooth-wearing diets and habitats. The impact of different causes of tooth wear is still a matter of debate, and the temporal pattern of hypsodonty evolution in relation to the evolution of grasslands remains unclear...
June 20, 2017: Systematic Biology
https://www.readbyqxmd.com/read/28636835/use-of-bacteriophages-to-control-escherichia-coli-o157-h7-in-domestic-ruminants-meat-products-and-fruits-and-vegetables
#3
Lili Wang, Kunli Qu, Xiaoyu Li, Zhenhui Cao, Xitao Wang, Zhen Li, Yaxiong Song, Yongping Xu
Escherichia coli O157:H7 is an important foodborne pathogen that causes severe bloody diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome. Ruminant manure is a primary source of E. coli O157:H7 contaminating the environment and food sources. Therefore, effective interventions targeted at reducing the prevalence of fecal excretion of E. coli O157:H7 by cattle and sheep and the elimination of E. coli O157:H7 contamination of meat products as well as fruits and vegetables are required. Bacteriophages offer the prospect of sustainable alternative approaches against bacterial pathogens with the flexibility of being applied therapeutically or for biological control purposes...
June 21, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28634453/relaxin-family-peptide-receptors-1-and-2-are-fully-functional-in-the-bovine
#4
Yanzhenzi Dai, Richard Ivell, Xuan Liu, Dana Janowski, Ravinder Anand-Ivell
In most mammals the peptide hormone relaxin is a key physiological component regulating early pregnancy and birth. However, synteny analysis shows that the gene encoding ovarian relaxin-2 is deleted in cows and sheep. While, these ruminants appear to exhibit a relaxin-like physiology, as in other mammals, until now a molecular understanding of this has been lacking. Cloning and expression analysis of the cognate bovine receptor for relaxin, RXFP1, as well as of the structurally related receptor, RXFP2, in female tissues, shows that these are expressed in a similar way to other mammals...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28632107/linking-attentional-control-and-ptsd-symptom-severity-the-role-of-rumination
#5
Rebecca C Cox, Bunmi O Olatunji
Although deficits in attentional control have been linked to posttraumatic stress disorder (PTSD), the mechanism that may account for this association has not been fully elucidated. The present study examined rumination as a mediator of the relationship between attentional control and PTSD symptoms. Veterans with PTSD and trauma-exposed veterans without PTSD completed measures of attentional control, rumination, and PTSD symptom severity. As predicted, the findings showed that veterans with PTSD reported significantly lower levels of attentional control than veterans without PTSD...
March 3, 2017: Cognitive Behaviour Therapy
https://www.readbyqxmd.com/read/28631053/characterization-of-an-orf-virus-isolate-from-an-outbreak-in-heilongjiang-province-china
#6
Yongzhong Yu, Qiang Tan, Wenbo Zhao, Xue Zhang, Jinzhu Ma, Zhijun Wu, Zhanbo Zhu, Yudong Cui
Contagious ecthyma, caused by orf virus (ORFV), is an epitheliotrophic contagious disease with zoonotic implications that mainly affects sheep, goats, wild ruminants, and humans. Recently, a novel ORFV strain, OV/HLJ/04, was successfully isolated from the skin and mucosal lesions of a goat with severe clinical sore mouth symptoms in Heilongjiang province of China. The OV/HLJ/04 isolate was characterized by electron microscopy, serological tests, and experimental reproduction of disease. The purified virions exhibited a typical ovoid shape when observed by electron microscopy...
June 19, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28630326/reconstruction-and-evolutionary-history-of-eutherian-chromosomes
#7
Jaebum Kim, Marta Farré, Loretta Auvil, Boris Capitanu, Denis M Larkin, Jian Ma, Harris A Lewin
Whole-genome assemblies of 19 placental mammals and two outgroup species were used to reconstruct the order and orientation of syntenic fragments in chromosomes of the eutherian ancestor and six other descendant ancestors leading to human. For ancestral chromosome reconstructions, we developed an algorithm (DESCHRAMBLER) that probabilistically determines the adjacencies of syntenic fragments using chromosome-scale and fragmented genome assemblies. The reconstructed chromosomes of the eutherian, boreoeutherian, and euarchontoglires ancestor each included >80% of the entire length of the human genome, whereas reconstructed chromosomes of the most recent common ancestor of simians, catarrhini, great apes, and humans and chimpanzees included >90% of human genome sequence...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629740/seasonal-dynamics-spatial-distribution-and-genetic-analysis-of-anaplasma-species-infecting-small-ruminants-from-northern-tunisia
#8
Hanène Belkahia, Mourad Ben Said, Narjesse El Mabrouk, Mariem Saidani, Chayma Cherni, Mariem Ben Hassen, Ali Bouattour, Lilia Messadi
To date, there have been no reports on seasonal variations of Anaplasma spp. in South Mediterranean small ruminants. In this longitudinal field study, single and mixed Anaplasma spp. infections in small ruminants from five different governorates belonging to three bioclimatic zones from the North of Tunisia were evaluated according to seasons. A total of 1685 blood small ruminant samples were collected in spring (355 sheep and 241 goats), summer (249 sheep and 202 goats), autumn (236 sheep and 186 goats) and winter (132 sheep and 84 goats)...
June 16, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28628828/sensitivity-to-bst-2-restriction-correlates-with-orthobunyavirus-host-range
#9
Mariana Varela, Ilaria M Piras, Catrina Mullan, Xiaohong Shi, Natasha L Tilston-Lunel, Rute Maria Pinto, Aislynn Taggart, Stephen R Welch, Stuart J D Neil, Felix Kreher, Richard M Elliott, Massimo Palmarini
Orthobunyaviruses include several recently emerging viruses of significant medical and veterinary importance. There is currently very limited understanding on what determines the host species range of these pathogens. In this study we discovered that BST-2/tetherin restricts orthobunyavirus replication in a host-specific manner. We show that viruses with human tropism (Oropouche virus and La Crosse virus) are restricted by sheep BST-2 but not by the human orthologue, while viruses with ruminant tropism (Schmallenberg virus and others) are restricted by human BST-2 but not by the sheep orthologue...
June 16, 2017: Virology
https://www.readbyqxmd.com/read/28625705/the-feasibility-of-improved-live-dead-distinction-in-qpcr-based-microbial-source-tracking
#10
Seidel Laura, Strathmann Martin, Nocker Andreas
PCR-based microbial source tracking (MST) has become a useful tool to identify dominant sources of fecal pollution in water. The method has previously been successfully combined with viability PCR (using propidium monoazide) allowing the preferential detection of membrane-intact bacteria. This study aimed at further improving the selectivity for intact cells when targeting host-specific markers in Bacteroidales bacteria. One approach was to increase amplicon sizes that had been shown to be useful for other applications of viability PCR...
June 15, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28625234/-effect-of-global-end-diastolic-volume-index-guidance-fluid-resuscitation-in-elderly-patients-with-septic-shock
#11
Shuang Ma, Rumin Zhang, Shifu Wang, Meiling Zhao, Lei Wang, Yun Zhang
OBJECTIVE: To evaluate the effect of global end diastolic volume index (GEDVI) on fluid resuscitation in elderly patients with septic shock. METHODS: A prospective randomized controlled trial (RCT) was conducted. Septic shock patients over 65 years admitted to intensive care unit (ICU) of Shandong Province, Zibo Central Hospital from January 2013 to December 2015 were enrolled. The patients were randomly divided into control group and observation group, 20 cases in each group...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28624461/emetine-inhibits-replication-of-rna-and-dna-viruses-without-generating-drug-resistant-virus-variants
#12
Nitin Khandelwal, Yogesh Chander, Thachamvally Riyesh, Krishan Dutt Rawat, Pratibha Saini, Chikkahonnaiah Nishanth, Shalini Sharma, Naresh Jindal, Bhupendra N Tripathi, Sanjay Barua, Naveen Kumar
At a noncytotoxic concentration, emetine was found to inhibit replication of DNA viruses [buffalopoxvirus (BPXV) and bovine herpesvirus 1 (BHV-1)] as well as RNA viruses [peste des petits ruminants virus (PPRV) and Newcastle disease virus (NDV)]. Using the time-of-addition and virus step-specific assays, we showed that emetine treatment resulted in reduced synthesis of viral RNA (PPRV and NDV) and DNA (BPXV and BHV-1) as well as inhibiting viral entry (NDV and BHV-1). In addition, emetine treatment also resulted in decreased synthesis of viral proteins...
June 14, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28624282/effect-of-endoplasmic-reticulum-stress-on-metabolic-and-stress-signaling-and-kidney-specific-functions-in-madin-darby-bovine-kidney-cells
#13
E Chiappisi, R Ringseis, K Eder, D K Gessner
Recent studies demonstrated induction of endoplasmic reticulum (ER) stress in tissues of cows after parturition, but knowledge about the effect of ER stress on important cellular processes, such as critical signaling and metabolic pathways, in cattle is scarce. Thus, the present study aimed to investigate the effect of ER stress induction on nuclear factor-κB (NF-κB), nuclear factor E2-related factor 2 (Nrf2), and sterol regulatory element-binding protein (SREBF1) pathway in Madin-Darby bovine kidney (MDBK) cells, a widely used in vitro model in ruminant research...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624275/nuclear-receptor-subfamily-1-group-h-member-2-lxrb-is-the-predominant-liver-x-receptor-subtype-regulating-transcription-of-2-major-lipogenic-genes-in-goat-primary-mammary-epithelial-cells
#14
H B Shi, C H Zhang, Z A Xu, X F Xu, Z B Lv, J Luo, J J Loor
In ruminants, recent research has identified a crucial role for liver X receptors (LXR) in regulating lipid metabolism in mammary cells. However, the differences between LXR subtypes in regulating ruminant lipid metabolism are unknown. We used overexpression and knockdown of LXRA and LXRB in goat primary mammary epithelial cells to distinguish subtype-specific regulation of sterol regulatory element binding protein 1c (SREBP1c) and fatty acid synthase (FASN) mRNA expression and their promoter activity. Incubation with siRNA targeting LXR decreased expression of LXRA and LXRB...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624272/effects-of-partial-replacement-of-corn-grain-with-lactose-in-calf-starters-on-ruminal-fermentation-and-growth-performance
#15
A Saegusa, K Inouchi, M Ueno, Y Inabu, S Koike, T Sugino, M Oba
The objective of this study was to evaluate effects of partial replacement of dry ground corn with lactose in calf starters on dry matter intake, growth rate, ruminal pH, and volatile fatty acid profile. Sixty Holstein bull calves were raised on a high plane of nutrition program until 55 d of age. Calves were fed texturized calf starters containing 30.1% steam-flaked grains and lactose at 0 (control), 5, or 10% (n = 20 for each treatment) on a dry matter basis. All calves were fed treatment calf starters ad libitum from d 7 and kleingrass hay from d 35...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28623602/protein-requirements-of-collared-peccary-pecari-tajacu
#16
Rogério M Borges, Alcester Mendes, Selene S C Nogueira, Jérôme Bindelle, Sérgio L G Nogueira-Filho
A nitrogen (N) balance digestion trial was conducted to determine the protein requirement of collared peccaries (Pecari tajacu). In a 4 × 4 Latin square design, four captive adult male peccaries were fed four isoenergy diets containing four different levels of N (11.7, 16.3, 22.8, and 26.7 g N/kg of dry matter-DM). After 15 days of adaptation, a total collection of feces and urine was carried out for five consecutive days. Regression analyses between N intake and N in feces and urine allowed to calculate the metabolic fecal nitrogen (MFN = 2...
June 16, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28623492/recombinant-20-8-kda-protein-of-mycobacterium-avium-subsp-paratuberculosis-based-sero-diagnosis-of-paratuberculosis
#17
P P Goswami, Gokul Chand, N S Prasad, R Deb, S H Basagoudanavar
Johne's disease or paratuberculosis is a chronic infectious enteric disease of ruminants caused by the intracellular pathogen. The control of the Johne's disease is hampered by lack of specific diagnostic tests. In this study, we have cloned and expressed the N-terminal region of the locus tag Map 1637c encoding 20.8-kDa (r20.8) protein of Mycobacterium avium subsp. paratuberculosis. The recombinant protein r20.8 was expressed in high levels in Escherichia coli. The protein r20.8 was purified by single-step chromatography using Ni-NTA agarose...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28622794/schmallenberg-virus-predicting-within-herd-seroprevalence-using-bulk-tank-milk-antibody-titres-and-exploring-individual-animal-antibody-titres-using-empirical-distribution-functions-edf
#18
Á B Collins, J Grant, D Barrett, M L Doherty, A Hallinan, J F Mee
Schmallenberg virus (SBV) is transmitted by Culicoides spp. biting midges and can cause abortions and congenital malformations in ruminants and milk drop in dairy cattle. Estimating true within-herd seroprevalence is an essential component of efficient and cost-effective SBV surveillance programs. The objectives of this study were: (1) determine the correlation between bulk-tank milk (BTM)-ELISA results and within-herd seroprevalence, (2) evaluate the ability of BTM-ELISA results to predict within-herd seroprevalence and (3) explore the distributions of individual animal serology results using novel statistical methodology...
August 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28620326/thought-control-ability-is-different-from-rumination-in-explaining-the-association-between-neuroticism-and-depression-a-three-study-replication
#19
Feng-Ying Lu, Wen-Jing Yang, Qing-Lin Zhang, Jiang Qiu
Neuroticism is the most common vulnerability factor of depression. However, the mechanism underlying this vulnerability is still unclear. Previous studies suggested that rumination intensifies the negative effect of neuroticism on depression. However, whether cognitive control could explain the association between neuroticism and depression remains unclear to date. Therefore, this study evaluated the indirect effects of rumination and thought control on the relationship between neuroticism and depression. Seven self-report measures were employed among healthy and main depression disorder (MDD) participants...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28619155/black-pigmented-anaerobic-bacteria-associated-with-ovine-periodontitis
#20
Ana C Borsanelli, Elerson Gaetti-Jardim, Christiane M Schweitzer, Lorenzo Viora, Valentina Busin, Marcello P Riggio, Iveraldo S Dutra
Periodontitis is a polymicrobial infectious disease that causes occlusion change, tooth loss, difficulty in rumination, and premature culling of animals. This study aimed to detect species of the genera Porphyromonas and Prevotella present in the periodontal pocket of sheep with lesions deeper than 5mm (n=14) and in the gingival sulcus of animals considered periodontally healthy (n=20). The presence of microorganisms was evaluated by polymerase chain reaction (PCR) using specific primers for Porphyromonas asaccharolytica, Porphyromonas endodontalis, Porphyromonas gingivalis, Porphyromonas gulae, Prevotella buccae, Prevotella intermedia, Prevotella loescheii, Prevotella melaninogenica, Prevotella nigrescens, Prevotella oralis, and Prevotella tannerae...
May 2017: Veterinary Microbiology
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