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https://www.readbyqxmd.com/read/30102924/a-novel-multiplex-pcr-electronic-microarray-assay-for-rapid-and-simultaneous-detection-of-bovine-respiratory-and-enteric-pathogens
#1
Niroshan Thanthrige-Don, Oliver Lung, Tara Furukawa-Stoffer, Cody Buchanan, Tomy Joseph, Dale L Godson, John Gilleard, Trevor Alexander, Aruna Ambagala
Respiratory and enteric diseases continue to be two major causes of economic losses to the cattle industry worldwide. Despite their multifactorial etiology, the currently available diagnostic tests for bovine respiratory disease complex (BRDC) and bovine enteric disease (BED) are single-pathogen-tests. DNA microarray when combined with multiplex polymerase chain reaction (PCR) is a powerful tool in detection and differentiation of multiple pathogens in a single sample. This study reports development and initial validation of two independent highly sensitive and specific multiplex PCR-electronic microarray assays, one for the detection and differentiation of pathogens of the BRDC and the other for detection and differentiation of pathogens of the BED...
August 10, 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29992102/biosynthesis-characterization-and-evaluation-of-bioactivities-of-leaf-extract-mediated-biocompatible-gold-nanoparticles-from-alternanthera-bettzickiana
#2
Nagalingam M, Kalpana V N, Devi Rajeswari V, Panneerselvam A
The objective of the study was to synthesize gold nanoparticles (Au NPs) using leaf extract of Alternanthera bettzickiana (A. bettzickiana ). The biosynthesized Au NPs were characterized using UV-vis spectroscopy, X-ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDX), Zeta potential and Transmission electron microscopy (TEM). Morphologically, the Au NPs showed spherical shaped structures. Size distribution of Au NPs calculated using Scherrer's formula, showed an average size of 80-120 nm...
September 2018: Biotechnology Reports
https://www.readbyqxmd.com/read/29991761/cross-feeding-modulates-antibiotic-tolerance-in-bacterial-communities
#3
Elizabeth M Adamowicz, Jeffrey Flynn, Ryan C Hunter, William R Harcombe
Microbes frequently rely on metabolites excreted by other bacterial species, but little is known about how this cross-feeding influences the effect of antibiotics. We hypothesized that when species rely on each other for essential metabolites, the minimum inhibitory concentration (MIC) for all species will drop to that of the "weakest link"-the species least resistant in monoculture. We tested this hypothesis in an obligate cross-feeding system that was engineered between Escherichia coli, Salmonella enterica, and Methylobacterium extorquens...
July 10, 2018: ISME Journal
https://www.readbyqxmd.com/read/29944396/survey-for-bacteria-and-antimicrobial-resistance-in-wild-turkeys-meleagris-gallopavo-in-ontario-canada
#4
Amanda M MacDonald, Claire M Jardine, Leonardo Susta, Durda Slavic, Nicole M Nemeth
Since being successfully reintroduced into Ontario, Canada, wild turkey ( Meleagris gallopavo) populations have undergone robust growth and range expansion. This, along with increases in land use changes from human population growth and subsequent developments in agriculture and livestock production, has heightened opportunities for interactions between wild turkeys, domestic poultry, and humans. As conspecifics, wild and domestic turkeys are susceptible to infection and disease from many of the same pathogens...
June 2018: Avian Diseases
https://www.readbyqxmd.com/read/29929362/vaccination-of-goats-with-a-combination-of-salmonella-vector-expressing-brucella-antigens-bls-prpa-omp19-sod-confers-a-protection-against-brucella-abortus-infection
#5
Mwense Leya, Won Kyong Kim, Jeong Sang Cho, Eun-Chae Yu, Young-Jee Kim, Yoonhwan Yeo, Kwang-Soo Lyoo, Myeon-Sik Yang, Sang-Seop Han, John Hwa Lee, Dongseob Tark, Jin Hur, Bumseok Kim
Salmonella is an intracellular pathogen exhibiting a cellular infection mechanism similar to that of Brucella , making it a suitable choice for an anti- Brucella immune boost system. This study explores the efficacy of a Salmonella Typhimurium delivery-based combination vaccine for heterologous Brucella antigens (rBs) including Brucella lumazine synthase (BLS), proline racemase subunit A (PrpA), outer-membrane protein 19 (Omp19), and Cu/Zn superoxide dismutase (SOD) targeting brucellosis in goats. We inoculated the attenuated Salmonella delivery-based vaccine combination at two different subcutaneous inoculations; 5 × 109 CFU/ml (group B) and 5 × 10¹⁰ CFU/ml (group C) and challenged it with virulent Brucella abortus at 6 weeks post-immunization...
June 21, 2018: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29857512/downregulations-of-akt-mtor-signaling-pathway-for-salmonella-mediated-suppression-of-matrix-metalloproteinases-9-expression-in-mouse-tumor-models
#6
Yu-Tzu Tsao, Chun-Yu Kuo, Shun-Ping Cheng, Che-Hsin Lee
The roles of Matrix MetalloProteinases (MMPs), such as MMP-9, in tumor metastasis are well studied, and this in turns stimulates the development of MMP inhibitors as antitumor agents. Previously, Salmonella accumulation was observed in the metastatic nodules of the lungs after systemic administration. Salmonella significantly enhanced the survival of the pulmonary metastatic tumor-bearing mice. Based on our previous observation, we hypothesized that Salmonella could affect metastasis-related protein expression...
May 31, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29744941/carvacrol-and-human-health-a-comprehensive-review
#7
REVIEW
Mehdi Sharifi-Rad, Elena Maria Varoni, Marcello Iriti, Miquel Martorell, William N Setzer, María Del Mar Contreras, Bahare Salehi, Azam Soltani-Nejad, Sadegh Rajabi, Mercedeh Tajbakhsh, Javad Sharifi-Rad
Carvacrol (CV) is a phenolic monoterpenoid found in essential oils of oregano (Origanum vulgare), thyme (Thymus vulgaris), pepperwort (Lepidium flavum), wild bergamot (Citrus aurantium bergamia), and other plants. Carvacrol possesses a wide range of bioactivities putatively useful for clinical applications such antimicrobial, antioxidant, and anticancer activities. Carvacrol antimicrobial activity is higher than that of other volatile compounds present in essential oils due to the presence of the free hydroxyl group, hydrophobicity, and the phenol moiety...
May 9, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29719510/-in-vivo-pharmacokinetic-pharmacodynamic-profiles-of-danofloxacin-in-rabbits-infected-with-salmonella-typhimurium-after-oral-administration
#8
Xia Xiao, Lin Pei, Li-Jie Jiang, Wei-Xuan Lan, Jia-Yu Xiao, Yon-Jia Jiang, Zhi-Qiang Wang
Salmonella typhimurium is a highly transmissible pathogen in rabbits that causes significant losses. Danofloxacin shows excellent efficacy against S. typhimurium infections. However, there are few reports of the pharmacokinetic/pharmacodynamic (PK/PD) modeling of danofloxacin against this pathogen. The aim of this study was to evaluate the in vivo PK/PD relationship of danofloxacin in rabbits infected with S. typhimurium. We used the reduction of bacterial burden in the blood, liver, spleen, and lung as the target PD endpoints, and determined the PK/PD indexes that best correlated with the efficacy and its corresponding magnitude...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29692722/the-deletion-of-endothelial-sodium-channel-%C3%AE-%C3%AE-enac-impairs-endothelium-dependent-vasodilation-and-endothelial-barrier-integrity-in-endotoxemia-in-vivo
#9
Magdalena Sternak, Anna Bar, Mateusz G Adamski, Tasnim Mohaissen, Brygida Marczyk, Anna Kieronska, Marta Stojak, Kamil Kus, Antoine Tarjus, Frederic Jaisser, Stefan Chlopicki
The role of epithelial sodium channel (ENaC) activity in the regulation of endothelial function is not clear. Here, we analyze the role of ENaC in the regulation of endothelium-dependent vasodilation and endothelial permeability in vivo in mice with conditional αENaC subunit gene inactivation in the endothelium (endo-αENaCKO mice) using unique MRI-based analysis of acetylcholine-, flow-mediated dilation and vascular permeability. Mice were challenged or not with lipopolysaccharide (LPS, from Salmonella typhosa , 10 mg/kg, i...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29555556/toxicological-evaluation-of-6-sialyllactose-6-sl-sodium-salt
#10
Rit Bahadur Gurung, Dae Hee Kim, Lila Kim, Albert W Lee, Zhenhua Wang, Yonglin Gao
We performed a series of toxicity studies on the safety of 6'-sialyllactose (6'-SL) sodium salt as a food ingredient. 6'-SL sodium salt, up to a maximum dose of 5000 μg/plate, did not increase the number of revertant colonies in five strains of Salmonella typhimurium in the presence or absence of S9 metabolic activation. A chromosomal aberration assay (using Chinese hamster lung cells) found no clastogenic effects at any concentration of 6'-SL sodium salt in the presence or absence of S9 metabolic activation...
June 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29549001/expression-of-recombinant-human-lysozyme-in-bacterial-artificial-chromosome-transgenic-mice-promotes-the-growth-of-bifidobacterium-and-inhibits-the-growth-of-salmonella-in-the-intestine
#11
Lu Dan, Shen Liu, Shengzhe Shang, Huihua Zhang, Ran Zhang, Ning Li
Targeted gene modification is a novel intervention strategy to increase disease resistance more quickly than traditional animal breeding. Human lysozyme, a natural, non-specific immune factor, participates in innate immunity, exerts a wide range of antimicrobial activities against pathogens, and has immuneregulatory effects. Therefore, it is a candidate gene for improved disease resistance in animals. In this study, we successfully generated a transgenic mouse model by microinjecting a modified bacterial artificial chromosome containing a recombinant human lysozyme (rhLZ) gene into the pronuclei of fertilized mouse embryos...
April 20, 2018: Journal of Biotechnology
https://www.readbyqxmd.com/read/29523766/nucleoside-diphosphate-kinase-3-nme3-enhances-tlr5-induced-nf-%C3%AE%C2%BA-b-activation
#12
Kelly Flentie, Caleb Gonzalez, Brandon Kocher, Yue Wang, Hongtu Zhu, Jayne Marasa, David Piwnica-Worms
Bacterial flagellin is a potent activator of NFκB signaling, inflammation, and host innate immunity, and recent data indicate that flagellin represents a novel antitumor ligand acting through toll-like receptor 5 (TLR5) and the NFκB pathway to induce host immunity and aid in the clearance of tumor xenografts. To identify innate signaling components of TLR5 responsible for these antitumor effects, a loss-of-function high-throughput screen was employed utilizing carcinoma cells expressing a dynamic NFκB bioluminescent reporter stimulated by Salmonella typhimurium expressing flagellin...
June 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29391062/genotoxicity-evaluation-of-so-ochim-tang-gamibang-socg-a-herbal-medicine
#13
Mi Young Lee, Yang-Chun Park, Mirim Jin, Eunseok Kim, Jeong June Choi, In Chul Jung
BACKGROUND: So-ochim-tang-gamibang (SOCG) is a traditional Korean medicine frequently used for depression in the clinical field. In this study, we evaluated the potential genotoxicity of SOCG using three standard batteries of tests as part of a safety evaluation. METHODS: SOCG was evaluated for potential genotoxic effects using the standard three tests recommended by the Ministry of Food and Drug Safety (MFDS) of Korea. These tests were the bacterial reverse mutation test (Ames test), in vitro mammalian chromosomal aberration test using Chinese hamster lung cells, and in vivo micronucleus test using ICR mice...
February 2, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29374999/tumor-targeting-salmonella-typhimurium-a1-r-combined-with-recombinant-methioninase-and-cisplatinum-eradicates-an-osteosarcoma-cisplatinum-resistant-lung-metastasis-in-a-patient-derived-orthotopic-xenograft-pdox-mouse-model-decoy-trap-and-kill-chemotherapy-moves
#14
Kentaro Igarashi, Kei Kawaguchi, Tasuku Kiyuna, Kentaro Miyake, Masuyo Miyake, Shukuan Li, Qinghong Han, Yuying Tan, Ming Zhao, Yunfeng Li, Scott D Nelson, Sarah M Dry, Arun S Singh, Irmina A Elliott, Tara A Russell, Mark A Eckardt, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Hiroyuki Tsuchiya, Fritz C Eilber, Robert M Hoffman
In the present study, a patient-derived orthotopic xenograft (PDOX) model of recurrent cisplatinum (CDDP)-resistant metastatic osteosarcoma was treated with Salmonella typhimurium A1-R (S. typhimurium A1-R), which decoys chemoresistant quiescent cancer cells to cycle, and recombinant methioninase (rMETase), which selectively traps cancer cells in late S/G2 , and chemotherapy. The PDOX models were randomized into the following groups 14 days after implantation: G1, control without treatment; G2, CDDP (6 mg/kg, intraperitoneal (i...
2018: Cell Cycle
https://www.readbyqxmd.com/read/29373863/mutagenicity-and-lung-toxicity-of-smoldering-vs-flaming-emissions-from-various-biomass-fuels-implications-for-health-effects-from-wildland-fires
#15
Yong Ho Kim, Sarah H Warren, Q Todd Krantz, Charly King, Richard Jaskot, William T Preston, Barbara J George, Michael D Hays, Matthew S Landis, Mark Higuchi, David M DeMarini, M Ian Gilmour
BACKGROUND: The increasing size and frequency of wildland fires are leading to greater potential for cardiopulmonary disease and cancer in exposed populations; however, little is known about how the types of fuel and combustion phases affect these adverse outcomes. OBJECTIVES: We evaluated the mutagenicity and lung toxicity of particulate matter (PM) from flaming vs. smoldering phases of five biomass fuels, and compared results by equal mass or emission factors (EFs) derived from amount of fuel consumed...
January 24, 2018: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29357857/the-genotoxicity-of-an-aqueous-extract-of-gyejibokryeong-hwan
#16
Mee-Young Lee, Chang-Seob Seo, Hyekyung Ha, Eunsook Park, Ji-Young Kim, Hyeun-Kyoo Shin
BACKGROUND: Gyejibokryeong-hwan (Guizhi Fuling Wan in China), a mixture of five herbal plants, is a well-known treatment for renal diseases including those associated with climacteric syndrome. However, the genotoxicity of Gyejibokryeong-hwan has not yet been well established. METHODS: The present study investigated that the genotoxicity of an aqueous extract of Gyejibokryeong-hwan (GJBRHE): an in vitro chromosomal aberration test using Chinese hamster lung cells, an in vitro bacterial reverse mutation assay (Ames test) with Salmonella typhimurium and Escherichia coli strains, and an in vivo micronucleus test using ICR mouse bone marrow...
January 22, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29314762/opportunistic-infections-in-patients-with-idiopathic-inflammatory-myopathies
#17
Ada Redondo-Benito, Adrian Curran, Ana Villar-Gomez, Ernesto Trallero-Araguas, Andreu Fernández-Codina, Iago Pinal-Fernandez, Jose Ángel Rodrigo-Pendás, Albert Selva-O'Callaghan
AIM: To describe the prevalence, clinical characteristics and risk factors of opportunistic infection (OI) in a cohort of patients with inflammatory myopathies, and compare mortality rates between those with and without OIs. METHODS: In total, 204 patients from our myositis cohort were reviewed to identify patients who had experienced an OI during the period 1986-2014. The patients' clinical characteristics, treatments received, and outcomes were systematically recorded...
February 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29299944/evaluation-of-genotoxic-potential-of-avarol-avarone-and-its-methoxy-and-methylamino-derivatives-in-prokaryotic-and-eukaryotic-test-models
#18
Stoimir Kolarević, Dragana Milovanović, Margareta Kračun-Kolarević, Jovana Kostić, Karolina Sunjog, Rajko Martinović, Jelena Đorđević, Irena Novaković, Dušan Sladić, Branka Vuković-Gačić
In this study, mutagenic and genotoxic potential of anti-tumor compounds avarol, avarone, and its derivatives 3'-methoxyavarone, 4'-(methylamino)avarone and 3'-(methylamino)avarone was evaluated and compared to cytostatics commonly used in chemotherapy (5-fluorouracil, etoposid, and cisplatin). Mutagenic potential of selected hydroquinone and quinones was assessed in prokaryotic model by the SOS/umuC assay in Salmonella typhimurium TA1535/pSK1002. Genotoxic potential was also assessed in eukaryotic models using comet assay in human fetal lung cell line (MRC-5), human adenocarcinoma epithelial cell line (A549), and in human peripheral blood cells (HPBC)...
January 4, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29282143/azithromycin-versus-placebo-for-the-treatment-of-hiv-associated-chronic-lung-disease-in-children-and-adolescents-breathe-trial-study-protocol-for-a-randomised-controlled-trial
#19
Carmen Gonzalez-Martinez, Katharina Kranzer, Grace McHugh, Elizabeth L Corbett, Hilda Mujuru, Mark P Nicol, Sarah Rowland-Jones, Andrea M Rehman, Tore J Gutteberg, Trond Flaegstad, Jon O Odland, Rashida A Ferrand
BACKGROUND: Human immunodeficiency virus (HIV)-related chronic lung disease (CLD) among children is associated with substantial morbidity, despite antiretroviral therapy. This may be a consequence of repeated respiratory tract infections and/or dysregulated immune activation that accompanies HIV infection. Macrolides have anti-inflammatory and antimicrobial properties, and we hypothesised that azithromycin would reduce decline in lung function and morbidity through preventing respiratory tract infections and controlling systemic inflammation...
December 28, 2017: Trials
https://www.readbyqxmd.com/read/29224977/corrigendum-to-molecular-and-phylogenetic-analyses-of-salmonella-gallinarum-trace-the-origin-and-diversification-of-recent-outbreaks-of-fowl-typhoid-in-poultry-farms-vet-microbiol-212-2017-80-86
#20
Silvia De Carli, Tiago Gräf, Diéssy Kipper, Fernanda Kieling Moreira Lehmann, Nathalie Zanetti, Franciele Maboni Siqueira, Samuel Cibulski, André Salvador Kazantzi Fonseca, Nilo Ikuta, Vagner Ricardo Lunge
No abstract text is available yet for this article.
January 2018: Veterinary Microbiology
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