journal
MENU ▼
Read by QxMD icon Read
search

Pathogens

journal
https://www.readbyqxmd.com/read/28906463/inhibition-of-adherence-of-mycobacterium-avium-to-plumbing-surface-biofilms-of-methylobacterium-spp
#1
Mari Carmen Muñoz Egea, Pan Ji, Amy Pruden, Joseph O Falkinham Iii
Both Mycobacterium spp. and Methylobacterium spp. are opportunistic premise plumbing pathogens that are found on pipe surfaces in households. However, examination of data published in prior microbiological surveys indicates that Methylobacterium spp. and Mycobacterium spp. tend not to coexist in the same household plumbing biofilms. That evidence led us to test the hypothesis that Methylobacterium spp. in biofilms could inhibit the adherence of Mycobacterium avium. Measurements of adherence of M. avium cells to stainless steel coupons using both culture and PCR-based methods showed that the presence of Methylobacterium spp...
September 14, 2017: Pathogens
https://www.readbyqxmd.com/read/28869552/listeria-monocytogenes-biofilms-in-the-wonderland-of-food-industry
#2
REVIEW
Angelo Colagiorgi, Ilaria Bruini, Pierluigi Aldo Di Ciccio, Emanuela Zanardi, Sergio Ghidini, Adriana Ianieri
The foodborne pathogen Listeria monocytogenes is a concern in food safety because of its ability to form biofilm and to persist in food industry. In this mini-review, the issue represented by this pathogen and some of the latest efforts performed in order to investigate the composition of biofilms formed by L. monocytogenes are summarized.
September 4, 2017: Pathogens
https://www.readbyqxmd.com/read/28869524/hpv16-e6-and-e7-upregulate-interferon-induced-antiviral-response-genes-isg15-and-ifit1-in-human-trophoblast-cells
#3
Lea M M Ambühl, Annemarie B Villadsen, Ulrik Baandrup, Karen Dybkær, Suzette Sørensen
Human papillomavirus (HPV) is suggested to infect trophoblasts in the placenta, and HPV infections are reported to be more prevalent in pregnancies with adverse outcomes. Results are however controversial, and studies investigating the molecular consequences of placental HPV infections are lacking. We studied HPV DNA localization in the placenta in cases of spontaneous abortion/spontaneous preterm delivery as well as in elective abortion/normal full-term delivery. Using in vitro assays, we investigated downstream effects of HPV16 E6 and E7 expression in trophoblast cells at the gene expression level in order to gain increased biological insight into the interaction between HPV and the cellular host...
September 3, 2017: Pathogens
https://www.readbyqxmd.com/read/28837104/the-lipid-raft-proteome-of-african-trypanosomes-contains-many-flagellar-proteins
#4
Aabha I Sharma, Cheryl L Olson, David M Engman
Lipid rafts are liquid-ordered membrane microdomains that form by preferential association of 3-β-hydroxysterols, sphingolipids and raft-associated proteins often having acyl modifications. We isolated lipid rafts of the protozoan parasite Trypanosoma brucei and determined the protein composition of lipid rafts in the cell. This analysis revealed a striking enrichment of flagellar proteins and several putative signaling proteins in the lipid raft proteome. Calpains and intraflagellar transport proteins, in particular, were found to be abundant in the lipid raft proteome...
August 24, 2017: Pathogens
https://www.readbyqxmd.com/read/28829352/a-review-of-salmonella-and-squamates-lizards-snakes-and-amphisbians-implications-for-public-health
#5
REVIEW
Harriet Whiley, Michael G Gardner, Kirstin Ross
Globally, there has been an increase in squamates (particularly lizards and snakes) being kept as pets. Additionally, urban spread has resulted in greater human encroachment and interaction with the natural habitat of wild squamates. A potential consequence of increasing human interaction with squamates is the increased potential for disease transfer. This review collates the literature describing clinical salmonellosis cases that were definitively linked to a squamate through testing of the animal and population-based studies which investigate the risk of salmonellosis linked to pet squamates...
August 22, 2017: Pathogens
https://www.readbyqxmd.com/read/28805733/first-detection-of-rotavirus-group-c-in-asymptomatic-pigs-of-smallholder-farms-in-east-africa
#6
Joshua Oluoch Amimo, Eunice Magoma Machuka, Edward Okoth
Abstract: Group C rotavirus (RVC) has been described to be a causative agent of gastroenteritis in humans and animals including pigs, cows, and dogs. Fecal samples collected from asymptomatic pigs in smallholder swine farms in Kenya and Uganda were screened for the presence of group C rotaviruses (RVC) using a reverse transcription-polymerase chain reaction assay. A total of 446 samples were tested and 37 were positive (8.3%). A significantly larger (p < 0.05) number of RVC-positive samples was detected in groups of older pigs (5-6 months) than in younger piglets (1-2 months)...
August 14, 2017: Pathogens
https://www.readbyqxmd.com/read/28792484/hospital-drains-as-reservoirs-of-pseudomonas-aeruginosa-multiple-locus-variable-number-of-tandem-repeats-analysis-genotypes-recovered-from-faucets-sink-surfaces-and-patients
#7
Cindy Lalancette, Dominique Charron, Céline Laferrière, Patrick Dolcé, Eric Déziel, Michèle Prévost, Emilie Bédard
Identifying environmental sources of Pseudomonas aeruginosa (Pa) related to hospital-acquired infections represents a key challenge for public health. Biofilms in water systems offer protection and favorable growth conditions, and are prime reservoirs of microorganisms. A comparative genotyping survey assessing the relationship between Pa strains recovered in hospital sink biofilm and isolated in clinical specimens was conducted. Environmental strains from drain, faucet and sink-surface biofilm were recovered by a culture method after an incubation time ranging from 48 to 240 h...
August 9, 2017: Pathogens
https://www.readbyqxmd.com/read/28783058/evolution-of-diagnostic-tests-for-chronic-wasting-disease-a-naturally-occurring-prion-disease-of-cervids
#8
REVIEW
Nicholas J Haley, Jürgen A Richt
Since chronic wasting disease (CWD) was first identified nearly 50 years ago in a captive mule deer herd in the Rocky Mountains of the United States, it has slowly spread across North America through the natural and anthropogenic movement of cervids and their carcasses. As the endemic areas have expanded, so has the need for rapid, sensitive, and cost effective diagnostic tests-especially those which take advantage of samples collected antemortem. Over the past two decades, strategies have evolved from the recognition of microscopic spongiform pathology and associated immunohistochemical staining of the misfolded prion protein to enzyme-linked immunoassays capable of detecting the abnormal prion conformer in postmortem samples...
August 5, 2017: Pathogens
https://www.readbyqxmd.com/read/28788110/kshv-and-the-role-of-notch-receptor-dysregulation-in-disease-progression
#9
REVIEW
Jennifer L DeCotiis, David M Lukac
Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of two human cancers, Kaposi's Sarcoma (KS) and primary effusion lymphoma (PEL), and a lymphoproliferation, Multicentric Castleman's Disease (MCD). Progression to tumor development in KS is dependent upon the reactivation of the virus from its latent state. We, and others, have shown that the Replication and transcriptional activator (Rta) protein is the only viral gene product that is necessary and sufficient for viral reactivation. To induce the reactivation and transcription of viral genes, Rta forms a complex with the cellular DNA binding component of the canonical Notch signaling pathway, recombination signal binding protein for Jk (RBP-Jk)...
August 4, 2017: Pathogens
https://www.readbyqxmd.com/read/28777778/kshv-and-the-role-of-notch-receptor-dysregulation-in-disease-progression
#10
REVIEW
Jennifer L DeCotiis, David M Lukac
Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of two human cancers, Kaposi's Sarcoma (KS) and primary effusion lymphoma (PEL), and a lymphoproliferation, Multicentric Castleman's Disease (MCD). Progression to tumor development in KS is dependent upon the reactivation of the virus from its latent state. We, and others, have shown that the Replication and transcriptional activator (Rta) protein is the only viral gene product that is necessary and sufficient for viral reactivation. To induce the reactivation and transcription of viral genes, Rta forms a complex with the cellular DNA binding component of the canonical Notch signaling pathway, recombination signal binding protein for Jk (RBP-Jk)...
August 4, 2017: Pathogens
https://www.readbyqxmd.com/read/28754024/a-comprehensive-review-of-common-bacterial-parasitic-and-viral-zoonoses-at-the-human-animal-interface-in-egypt
#11
REVIEW
Yosra A Helmy, Hosny El-Adawy, Elsayed M Abdelwhab
Egypt has a unique geographical location connecting the three old-world continents Africa, Asia and Europe. It is the country with the highest population density in the Middle East, Northern Africa and the Mediterranean basin. This review summarizes the prevalence, reservoirs, sources of human infection and control regimes of common bacterial, parasitic and viral zoonoses in animals and humans in Egypt. There is a gap of knowledge conerning the epidemiology of zoonotic diseases at the human-animal interface in different localities in Egypt...
July 21, 2017: Pathogens
https://www.readbyqxmd.com/read/28726736/protozoadb-2-0-a-trypanosoma-brucei-case-study
#12
Rodrigo Jardim, Diogo Tschoeke, Alberto M R Da Vila
Over the last decade new species of Protozoa have been sequenced and deposited in GenBank. Analyzing large amounts of genomic data, especially using Next Generation Sequencing (NGS), is not a trivial task, considering that researchers used to deal or focus their studies on few genes or gene families or even small genomes. To facilitate the information extraction process from genomic data, we developed a database system called ProtozoaDB that included five genomes of Protozoa in its first version. In the present study, we present a new version of ProtozoaDB called ProtozoaDB 2...
July 20, 2017: Pathogens
https://www.readbyqxmd.com/read/28714894/carbonic-anhydrase-from-porphyromonas-gingivalis-as-a-drug-target
#13
REVIEW
Claudiu T Supuran, Clemente Capasso
Periodontitis originates from a microbial synergy causing the development of a mouth microbial imbalance (dysbiosis), consisting of a microbial community composed of anaerobic bacteria. Most studies concerning the treatment of periodontitis have primarily take into account the Gram-negative bacterium Porphyromonas gingivalis, because it is a prominent component of the oral microbiome and a successful colonizer of the oral epithelium. Here, we focus our attention on the study of the carbonic anhydrases (CAs, EC 4...
July 15, 2017: Pathogens
https://www.readbyqxmd.com/read/28714889/staphylococcus-aureus-regulator-sigma-b-is-important-to-develop-chronic-infections-in-hematogenous-murine-osteomyelitis-model
#14
Lorena Tuchscherr, Jennifer Geraci, Bettina Löffler
Staphylococcus aureus is a major pathogen causing bone infections that can become chronic and difficult to treat. Recently, we described the mechanism employed by S. aureus to switch to small colony variants (SCVs) and trigger intracellular bacterial persistence through the global stress regulator SigB. Here, we studied the role of SigB in the formation of chronic osteomyelitis. We used a murine hematogenous osteomyelitis model, where the mice were infected via the tail vein and subsequently developed chronic osteomyelitis...
July 15, 2017: Pathogens
https://www.readbyqxmd.com/read/28671588/implications-of-neuroinvasive-bacterial-peptides-on-rodents-behaviour-and-neurotransmission
#15
Aneela Taj, Nusrat Jamil
Neuroinvasive microbes are capable of applying their influences on the autonomic nervous system (ANS) of the host followed by the involvement of central nervous system (CNS) by releasing extracellular metabolites that may cause alterations in the biochemical and neurophysiological environment. Consequently synaptic, neuroendocrine, peripheral immune, neuro-immune, and behavioural responses of the host facilitate the progression of infection. The present study was designed to extrapolate the effects of crude and purified extracellular peptides of neuropathogenic bacteria on behavioural responses and neurotransmission of Sprague Dawley (SD) models...
July 2, 2017: Pathogens
https://www.readbyqxmd.com/read/28657594/the-cytological-events-and-molecular-control-of-life-cycle-development-of-trypanosoma-brucei-in-the-mammalian-bloodstream
#16
REVIEW
Eleanor Silvester, Kirsty R McWilliam, Keith R Matthews
African trypanosomes cause devastating disease in sub-Saharan Africa in humans and livestock. The parasite lives extracellularly within the bloodstream of mammalian hosts and is transmitted by blood-feeding tsetse flies. In the blood, trypanosomes exhibit two developmental forms: the slender form and the stumpy form. The slender form proliferates in the bloodstream, establishes the parasite numbers and avoids host immunity through antigenic variation. The stumpy form, in contrast, is non-proliferative and is adapted for transmission...
June 28, 2017: Pathogens
https://www.readbyqxmd.com/read/28644417/herpes-simplex-virus-establishment-maintenance-and-reactivation-in-vitro-modeling-of-latency
#17
REVIEW
Nikki M Thellman, Steven J Triezenberg
All herpes viruses establish lifelong infections (latency) in their host, and herpes simplex viruses (HSVs) are highly prevalent worldwide. Recurrence of HSV infections contributes to significant disease burden in people and on rare occasion can be fatal. Cell culture models that recapitulate latent infection provide valuable insight on the host processes regulating viral establishment and maintenance of latency. More robust and rapid than infections in live animal studies, advancements in neuronal culture techniques have made the systematic analysis of viral reactivation mechanisms feasible...
June 23, 2017: Pathogens
https://www.readbyqxmd.com/read/28629167/igg-avidity-test-in-congenital-toxoplasmosis-diagnoses-in-newborns
#18
Zulmirene Cardoso Fonseca, Isolina Maria Xavier Rodrigues, Natália Cruz E Melo, Juliana Boaventura Avelar, Ana Maria Castro, Mariza Martins Avelino
The goal of this study was to investigate the importance of IgG avidity testing in newborns (NBs) diagnosed with early congenital toxoplasmosis. We collected samples from 88 puerperae infected by Toxoplasma gondii (T. gondii) and their NBs (48 acutely-infected puerperae (AIP) and 40 chronically-infected puerperae (CIP)), from two public maternity hospitals in Goiania city, Goias, Brazil, from 2010 to 2015. Specific anti-T. gondii IgM and IgG serum levels and IgG avidity tests were evaluated using chemiluminescence...
June 18, 2017: Pathogens
https://www.readbyqxmd.com/read/28604586/influenza-omics-and-the-host-response-recent-advances-and-future-prospects
#19
REVIEW
Joshua D Powell, Katrina M Waters
Influenza A viruses (IAV) continually evolve and have the capacity to cause global pandemics. Because IAV represents an ongoing threat, identifying novel therapies and host innate immune factors that contribute to IAV pathogenesis is of considerable interest. This review summarizes the relevant literature as it relates to global host responses to influenza infection at both the proteome and transcriptome level. The various-omics infection systems that include but are not limited to ferrets, mice, pigs, and even the controlled infection of humans are reviewed...
June 10, 2017: Pathogens
https://www.readbyqxmd.com/read/28594343/modeling-hsv-1-latency-in-human-embryonic-stem-cell-derived-neurons
#20
Aldo Pourchet, Aram S Modrek, Dimitris G Placantonakis, Ian Mohr, Angus C Wilson
Herpes simplex virus 1 (HSV-1) uses latency in peripheral ganglia to persist in its human host, however, recurrent reactivation from this reservoir can cause debilitating and potentially life-threatening disease. Most studies of latency use live-animal infection models, but these are complex, multilayered systems and can be difficult to manipulate. Infection of cultured primary neurons provides a powerful alternative, yielding important insights into host signaling pathways controlling latency. However, small animal models do not recapitulate all aspects of HSV-1 infection in humans and are limited in terms of the available molecular tools...
June 8, 2017: Pathogens
journal
journal
47549
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"