PubAg

Main content area

You searched for: Subject "pathogen survival" Remove constraint Subject: "pathogen survival"
Start Over

Search

877  Search Results

« Previous | 1 - 20 of 877 |
Number of results to display per page

Search Results

1. Impact of bacterial persisters on their host

Author:
Moldoveanu, Ana L; Rycroft, Julian A; Helaine, Sophie
Source:
Current opinion in microbiology 2021 v.59 pp. 65-71
ISSN:
1369-5274
Subject:
pathogen survival,   etc   ; antibiotic resistance; antibiotics; bacteria; biosynthesis; evolution; immune response;     Show all 7 Subjects
Abstract:
... The rise of antibiotic failure poses a severe threat to global health. There is growing concern that this failure is not solely driven by stable antibiotic resistance but also by a subpopulation of transiently non-growing, antibiotic tolerant bacteria. These ‘persisters’ have been proposed to seed relapsing infections, an important clinical outcome of treatment failure — although definitive eviden ...
DOI:
10.1016/j.mib.2020.07.006

2. Infection-based chemical screens uncover host–pathogen interactions

Author:
Detweiler, Corrella S
Source:
Current opinion in microbiology 2020 v.54 pp. 43-50
ISSN:
1369-5274
Subject:
pathogen survival,   etc   ; Gram-negative bacteria; Salmonella enterica; host-pathogen relationships; innate immunity; macrophages; pathogens; screening;     Show all 8 Subjects
Abstract:
... Bacterial pathogens must resist host innate immunity to cause disease. While Gram-negative bacteria have a protective outer membrane, this membrane is subject to host-induced damage that makes these pathogens vulnerable. We developed a high content screening platform that identifies compounds that cause the killing of the bacterial pathogen Salmonella enterica in macrophages. This platform enables ...
DOI:
10.1016/j.mib.2019.12.003

3. Correction: Ducey et al. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. <i>Environments</i>, 2019, <i>6</i>, 91

Author:
Ducey, Thomas F.; Rashash, Diana M. C.; Szogi, Ariel A.
Source:
Environments 2019 v.6 no.10
ISSN:
2076-3298
Subject:
pathogen survival,   etc   ; Enterococcus; Escherichia coli; microbial communities;     Show all 4 Subjects
Abstract:
... The authors would like to correct the published article [...] ...
DOI:
10.3390/environments6100109

4. Inactivation of Listeria monocytogenes on post-harvest carrot and tomato by gamma radiation, sanitizer, biocontrol treatments and their combinations

Author:
Berrios-Rodriguez, A.; Olanya, O.M.; Ukuku, D.O.; Niemira, B.A.; Orellana, L.E.; Mukhopadhyay, S.; Cassidy, J.M.; Boyd, G.
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2020 v.118 pp. 108805
ISSN:
0023-6438
Subject:
pathogen survival,   etc   ; Listeria monocytogenes; Pseudomonas fluorescens; biological control; carrots; food pathogens; gamma radiation; microorganisms; sanitizers; storage temperature; tomatoes; virulent strains;     Show all 12 Subjects
Abstract:
... Control of foodborne pathogens on post-harvest produce may be improved by combined treatments. Hurdle applications may enhance the lethal effects of non-thermal interventions on pathogenic bacteria. We evaluated the effects of gamma radiation (0.5 kGy), nisin-based sanitizer (100%), and competitive biocontrol microbes (non-pathogenic Pseudomonas fluorescens) on the survival of Listeria monocytogen ...
DOI:
10.1016/j.lwt.2019.108805

5. Survival Evaluation of Salmonella and Listeria monocytogenes on Selective and Nonselective Media in Ground Chicken Meat Subjected to High Hydrostatic Pressure and Carvacrol

Author:
Chuang, Shihyu; Sheen, Shiowshuh; Sommers, Christopher H.; Zhou, Siyuan; Sheen, Lee-Yan
Source:
Journal of food protection 2020 v.83 no.1 pp. 37-44
ISSN:
0362-028X
Subject:
pathogen survival,   etc   ; Listeria monocytogenes; Salmonella; agar; anti-infective agents; carvacrol; detection limit; essential oils; food processing; ground chicken meat; high pressure treatment; lysine; plate count; selective media; xylose;     Show all 15 Subjects
Abstract:
... High pressure processing (HPP) and treatment with the essential oil extract carvacrol had synergistic inactivation effects on Salmonella and Listeria monocytogenes in fresh ground chicken meat. Seven days after HPP treatment at 350 MPa for 10 min, Salmonella treated with 0.75% carvacrol was reduced to below the detection limit (1 log CFU/g) at 4°C and was reduced by ca. 6 log CFU at 10°C. L. monoc ...
DOI:
0.4315/0362-028X.JFP-19-075

6. Stabbed while Sleeping: Synthetic Retinoid Antibiotics Kill Bacterial Persister Cells

Author:
Fauvart, Maarten; Van den Bergh, Bram; Michiels, Jan
Source:
Molecular cell 2018 v.70 pp. 763-764
ISSN:
1097-2765
Subject:
pathogen survival,   etc   ; Staphylococcus aureus; antibiotics; cell membranes;     Show all 4 Subjects
Abstract:
... Antibiotic-tolerant persister cells are difficult to eradicate by conventional classes of antibiotics. Kim and colleagues have discovered a new class of synthetic retinoid antibiotics that kill Staphylococcus aureus persisters by disrupting their cytoplasmic membrane. ...
DOI:
10.1016/j.molcel.2018.05.029

7. RNA chaperone hfq mediates persistence to multiple antibiotics in Aeromonas veronii

Author:
Zhang, Lin; Yu, Wenjing; Tang, Yanqiong; Li, Hong; Ma, Xiang; Liu, Zhu
Source:
Microbial pathogenesis 2019 v.132 pp. 124-128
ISSN:
0882-4010
Subject:
pathogen survival,   etc   ; Aeromonas veronii; RNA; RNA-binding proteins; antibiotic resistance; antibiotics; financial economics;     Show all 7 Subjects
Abstract:
... Pathogenic Aeromonas veronii results in great healthy and economic losses in fishes and human. The multiple drug tolerance of bacterial persister is the major cause for recurrent infections. Ubiquitous RNA-binding protein Hfq is liable for antibiotic tolerance and persisiter production. We showed that the hfq deletion in A. veronii retarded the growth, reduced the tolerances to diverse antibiotics ...
DOI:
10.1016/j.micpath.2019.04.045

8. Infection History Determines Susceptibility to Unrelated Diseases

Author:
Rakebrandt, Nikolas; Joller, Nicole
Source:
BioEssays 2019 v.41 no.6 pp. e1800191
ISSN:
0265-9247
Subject:
pathogen survival,   etc   ; acute course; autoimmunity; immune response; immune system; immunologic memory; infectious diseases; innate immunity;     Show all 8 Subjects
Abstract:
... Epidemiological data suggest that previous infections can alter an individual's susceptibility to unrelated diseases. Nevertheless, the underlying mechanisms are not completely understood. Substantial research efforts have expanded the classical concept of immune memory to also include long‐lasting changes in innate immunity and antigen‐independent reactivation of adaptive immunity. Collectively, ...
DOI:
10.1002/bies.201800191

9. Prediction of Salmonella inactivation in sliced tomato subject to high pressure processing and trans-cinnamaldehyde treatment using selective and non-selective growth media for survival evaluations

Author:
Zhou, Siyuan; Sheen, Shiowshuh; Zhao, Guohua; Chuang, Shihyu; Liu, LinShu
Source:
Food control 2020 v.118 pp. 107441
ISSN:
0956-7135
Subject:
pathogen survival,   etc   ; GRAS substances; Salmonella; aldehydes; culture media; disinfection; flavor compounds; food safety; foodborne illness; high pressure treatment; hydrostatic pressure; models; plate count; prediction; regression analysis; response surface methodology; risk; tomatoes;     Show all 18 Subjects
Abstract:
... High pressure processing (HPP) is an effective non-thermal food operation means to reduce foodborne illness risks. Trans-cinnamaldehyde (TC) is a GRAS compound widely used in food applications for flavoring and recently found the potential to enhance microbial inactivation with HPP. For the first time, this study investigated combination effects of relatively low hydrostatic pressure level (i.e. 1 ...
Handle:
10113/7001073
DOI:
10.1016/j.foodcont.2020.107441

10. Transovarial transmission of Borrelia spp., Rickettsia spp. and Anaplasma phagocytophilum in Ixodes ricinus under field conditions extrapolated from DNA detection in questing larvae

Author:
Hauck, Daniela; Jordan, Daniela; Springer, Andrea; Schunack, Bettina; Pachnicke, Stefan; Fingerle, Volker; Strube, Christina
Source:
Parasites & vectors 2020 v.13 no.1 pp. 176
ISSN:
1756-3305
Subject:
pathogen survival,   etc   ; Anaplasma phagocytophilum; Borrelia burgdorferi; Borrelia miyamotoi; DNA; Ixodes ricinus; Lyme disease; Rickettsia; adults; disease reservoirs; disease vectors; ecosystems; genes; humans; laboratory experimentation; larvae; mixed infection; nests; pathogen identification; pathogens; quantitative polymerase chain reaction; risk; ticks; transovarial transmission;     Show all 24 Subjects
Abstract:
... BACKGROUND: Ixodes ricinus constitutes the main European vector tick for the Lyme borreliosis pathogen Borrelia burgdorferi (sensu lato), the relapsing fever borrelia Borrelia miyamotoi, as well as Anaplasma phagocytophilum and several Rickettsia species. Under laboratory conditions, a transovarial transmission to the next tick generation is described for Rickettsia spp. and Borrelia spp., especia ...
DOI:
10.1186/s13071-020-04049-7
PubMed:
32264920
PubMed Central:
PMC7140504

11. Innovative induction heating of grapefruit juice via induced electric field and its application in Escherichia coli O157:H7 inactivation

Author:
Jin, Yamei; Yang, Na; Xu, Dan; He, Chenghao; Xu, Yue; Xu, Xueming; Jin, Zhengyu
Source:
RSC advances 2020 v.10 no.46 pp. 27280-27287
ISSN:
2046-2069
Subject:
pathogen survival,   etc   ; Escherichia coli O157; brix; color; corrosion; electric field; electric potential difference; electrochemistry; electrodes; food pathogens; grapefruit juice; heat; magnetic fields; ohmic heating; pH; pasteurization; survival rate; temperature;     Show all 18 Subjects
Abstract:
... The proposed induction heating method was applied in the pasteurization of grapefruit juice. In this processing, an alternating magnetic field acted as the stimulus instead of conventional electrodes to create an induced electric field (IEF) for heat treatment of the continuous-flow juice sample, which excluded the possibility of electrochemical reaction and electrode corrosion that might occur in ...
DOI:
10.1039/d0ra03873c

12. Survival of Salmonella in Various Wild Animal Feces That May Contaminate Produce

Author:
Topalcengiz, Zeynal; Spanninger, Patrick M.; Jeamsripong, Saharuetaj; Persad, Anil K.; Buchanan, Robert L.; Saha, Joyjit; LeJeune, Jeff; Jay-Russell, Michele T.; Kneil, Kalmia E.; Danyluk, Michelle D.
Source:
Journal of food protection 2020 v.83 no.4 pp. 651-660
ISSN:
0362-028X
Subject:
pathogen survival,   etc   ; Procyon lotor; Salmonella enterica; agar; ambient temperature; cattle; deer; farms; feces; feral animals; food availability; pathogens; rifampicin; risk reduction; serotypes; storage temperature; storage time; swine; waterfowl; wildlife; California; Delaware; Florida; Ohio;     Show all 24 Subjects
Abstract:
... Heightened concerns about wildlife on produce farms and possible introduction of pathogens to the food supply have resulted in required actions following intrusion events. The purpose of this study was to evaluate the survival of Salmonellain feces from cattle and various wild animals (feral pigs, waterfowl, deer, and raccoons) in California, Delaware, Florida, and Ohio. Feces were inoculated with ...
DOI:
10.4315/0362-028X.JFP-19-302

13. Mechanisms of persistence, innate immune activation and immunomodulation by the gastric pathogen Helicobacter pylori

Author:
Zhang, Xiaozhou; Arnold, Isabelle C; Müller, Anne
Source:
Current opinion in microbiology 2020 v.54 pp. 1-10
ISSN:
1369-5274
Subject:
pathogen survival,   etc   ; Helicobacter pylori; Salmonella; adaptive immunity; autoimmunity; bacteria; bacterial infections; carcinogens; childhood; cradle-to-grave; humans; hypersensitivity; immune response; immune system; immunomodulation; models; pathogenesis; pathogens; prototypes; stomach; Africa;     Show all 21 Subjects
Abstract:
... The gastric bacterium Helicobacter pylori efficiently evades innate immune detection and persistently colonizes its human host. Understanding the genetic determinants that H. pylori uses to establish and maintain persistence, along with their cellular targets, is key to our understanding of the pathogenesis of this extraordinarily successful bacterial colonizer of the human stomach. This review hi ...
DOI:
10.1016/j.mib.2020.01.003

14. Natural inactivation of African swine fever virus in tissues: Influence of temperature and environmental conditions on virus survival

Author:
Mazur-Panasiuk, Natalia; Woźniakowski, Grzegorz
Source:
Veterinary microbiology 2020 v.242 pp. 108609
ISSN:
0378-1135
Subject:
pathogen survival,   etc   ; African swine fever virus; DNA; cold treatment; environmental factors; excretion; fomites; freezing; half life; hay; plant litter; quantitative polymerase chain reaction; regression analysis; risk assessment; straw; swine; temperature; tissues;     Show all 18 Subjects
Abstract:
... African swine fever virus can be transmitted through direct contact with infected animals and their excretions, or indirect contact with contaminated fomites. Risk assessment of the disease spreading requires quantitative knowledge about time and conditions needed for its inactivation in various material of pig origin. In this study we aimed to assess ASFV stability in naturally contaminated tissu ...
DOI:
10.1016/j.vetmic.2020.108609

15. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon

Author:
Ducey, Thomas F.; Rashash, Diana M. C.; Szogi, Ariel A.
Source:
Environments 2019 v.6 no.8
ISSN:
2076-3298
Subject:
pathogen survival,   etc   ; Archaea; Enterococcus; Escherichia coli; ammonia; environmental factors; fecal bacteria; microbial communities; microclimate; pH; sequence analysis; swine; swine feeding;     Show all 13 Subjects
Abstract:
... Anaerobic lagoons are a critical component of confined swine feeding operations. These structures can be modified, using a synthetic cover, to enhance their ability to capture the emission of ammonia and other malodorous compounds. Very little has been done to assess the potential of these covers to alter lagoon biological properties. Alterations in the physicochemical makeup can impact the biolog ...
DOI:
10.3390/environments6080091

16. Endophytic survival of Pseudomonas syringae pv. actinidiae in Actinidia chinensis 'Hort16A' plants

Author:
Minardi, P.; Ardizzi, S.; Lucchese, C.
Source:
Acta horticulturae 2019 no.1243 pp. 97-102
ISSN:
0567-7572
Subject:
pathogen survival,   etc   ; Actinidia chinensis; Pseudomonas syringae pv. actinidiae; bacterial canker; control methods; endophytes; host plants; polymerase chain reaction; tissues; virulence;     Show all 10 Subjects
Abstract:
... To tackle the epidemiological role of the latency phase of Pseudomonas syringae pv. actinidiae (Psa) in susceptible asymptomatic host plants, the pathogen survival and colonization were studied in seven-year-old plants of Actinidia chinensis 'Hort16A'. The plants were inoculated with a virulent Psa gfp-expressing/rifampicin-resistant strain (Psagfp-Rif(res)) and the endophytic presence of Psa was ...
DOI:
10.17660/ActaHortic.2019.1243.16

17. Haustoria – arsenals during the interaction between wheat and Puccinia striiformis f. sp. tritici

Author:
Xu, Qiang; Tang, Chunlei; Wang, Likun; Zhao, Congcong; Kang, Zhensheng; Wang, Xiaojie
Source:
Molecular plant pathology 2020 v.21 no.1 pp. 83-94
ISSN:
1464-6722
Subject:
pathogen survival,   etc   ; Puccinia striiformis f. tritici; Triticum; biochemical pathways; biosynthesis; callose; gene expression regulation; genes; germ tube; glycolysis; growth and development; haustoria; host plants; leaves; lipids; nutrients; parasites; pathogenicity; pathogens; programmed cell death; protein secretion; thiamin; tobacco; transcriptome; transcriptomics; type III secretion system; urediniospores; wheat;     Show all 28 Subjects
Abstract:
... As an obligate parasite, Puccinia striiformis f. sp. tritici (Pst) forms haustoria to obtain nutrients from plant cells for development, and these structures are essential for pathogen survival. To better understand the contribution of haustoria to the interactions with the host plants, we isolated haustoria from susceptible wheat leaves infected with Pst race CYR31 and sequenced their transcripto ...
DOI:
10.1111/mpp.12882
PubMed:
31774224
PubMed Central:
PMC6913192

18. Mycoplasma hyopneumoniae evades phagocytic uptake by porcine alveolar macrophages in vitro

Author:
Deeney, Alannah S.; Maglennon, Gareth A.; Chapat, Ludivine; Crussard, Steve; Jolivet, Edmond; Rycroft, Andrew N.
Source:
Veterinary research 2019 v.50 no.1 pp. 51
ISSN:
1297-9716
Subject:
pathogen survival,   etc   ; Mycoplasma hyopneumoniae; blood serum; complement; confocal microscopy; cytochalasin D; enzootic diseases; flow cytometry; gentamicin; green fluorescent protein; lungs; macrophages; pathogens; phagocytosis; pneumonia; swine;     Show all 16 Subjects
Abstract:
... Mycoplasma hyopneumoniae, the agent of porcine enzootic pneumonia (EP), is able to persist in the lung tissue and evade destruction by the host for several weeks. To understand the mechanism of pathogen survival, phagocytic uptake of M. hyopneumoniae by primary porcine alveolar macrophages was investigated. Intracellular location and survival of the pathogen were explored using gentamicin survival ...
DOI:
10.1186/s13567-019-0667-6
PubMed:
31234931
PubMed Central:
PMC6591956

19. Revealing the Metabolic Activity of Persisters in Mycobacteria by Single-Cell D₂O Raman Imaging Spectroscopy

Author:
Ueno, Hiroshi; Kato, Yota; Tabata, Kazuhito V.; Noji, Hiroyuki
Source:
Analytical chemistry 2019 v.91 no.23 pp. 15171-15178
ISSN:
1520-6882
Subject:
pathogen survival,   etc   ; Mycobacterium smegmatis; Mycobacterium tuberculosis; Raman imaging; bacteria; biochemical pathways; cell growth; clones; deuterium; deuterium oxide; dormancy; environmental factors; models; phenotype; rifampicin;     Show all 15 Subjects
Abstract:
... The metabolic activity of bacterial cells largely differentiates even within a clonal population. Such metabolic divergence among cells is thought to play an important role for phenotypic adaptation to ever-changing environmental conditions, such as antibiotic persistence. It has long been thought that persisters are in a state called dormancy, in which cells are metabolically inactive and do not ...
DOI:
10.1021/acs.analchem.9b03960

20. Spatial distribution and spread potential of sixteen Leptospira serovars in a subtropical region of Brazil

Author:
Jara, Manuel; Escobar, Luis E.; Rodriges, Rogério O.; Frias‐De‐Diego, Alba; Sanhueza, Juan; Machado, Gustavo
Source:
Transboundary and emerging diseases 2019 v.66 no.6 pp. 2482-2495
ISSN:
1865-1674
Subject:
pathogen survival,   etc   ; Leptospira; animal health; emerging diseases; environmental factors; food animals; leptospirosis; models; niches; public health; serotypes; subtropics; temperature; tropics; zoonoses; Brazil;     Show all 16 Subjects
Abstract:
... Leptospirosis is a bacterial disease that represents a major problem in animal and public health due to its high prevalence and widespread distribution. This zoonotic disease is most prevalent in tropical environments where conditions favour pathogen survival. The ecological preferences of Leptospira serovars are poorly understood, limiting our knowledge of where and when outbreaks can occur, whic ...
DOI:
10.1111/tbed.13306