Results 71 to 80 of about 12,137 (236)

Expert opinion on the identification, risk assessment, and mitigation of microorganisms and parasites relevant to xenotransplantation products from pigs

Xenotransplantation, Volume 30, Issue 5, September/October 2023., 2023
Abstract Xenotransplantation has the potential to address shortages of organs available for clinical transplantation, but concerns exist regarding potential risks posed by porcine microorganisms and parasites (MP) to the health of human recipients. In this study, a risk‐based framework was developed, and expert opinion was elicited to evaluate porcine ...
Huybert Groenendaal, Solenne Costard, Reid Ballard, Stephen Bienhoff, Diana C. Challen, Brandon J. Dominguez, Douglas R. Kern, Dan Miller, Jeske Noordergraaf, Larisa Rudenko, Henk‐Jan Schuurman, Tom Spizzo, Matthew Sturos, Bill Zollers, Jay A. Fishman   +14 more
wiley   +1 more source

Naturally Occurring Ehrlichia chaffeensis Infection in Two Prosimian Primate Species: Ring-tailed Lemurs (Lemur catta) and Ruffed Lemurs (Varecia variegata)

Emerging Infectious Diseases, 2002
A naturally occurring infection of Ehrlichia chaffeensis in lemurs is described. DNA of Ehrlichia chaffeensis was identified by polymerase chain reaction in peripheral blood from six of eight clinically ill lemurs.
Cathy V. Williams, Jan L. Van Steenhouse, Julie M. Bradley, Susan I. Hancock, Barbara C. Hegarty, Edward B. Breitschwerdt   +5 more
doaj   +1 more source

Geographic distribution and genetic diversity of the Ehrlichia sp. from Panola Mountain in Amblyomma americanum [PDF]

, 2008
Background: A novel Ehrlichia, closely related to Ehrlichia ruminantium, was recently discovered from Panola Mountain State Park, GA, USA. We conducted a study to determine if this agent was recently introduced into the United States.
Blount, Keith W., Fitak, Robert R., Fuerst, Paul A., Garrison, Laurel E., Kelly, Daryl J., Loftis, Amanda D., Mixson, Tonya R., Stromdahl, Ellen Y., Williamson, Phillip C., Yabsley, Michael J.   +9 more
core   +2 more sources

Structure of thymidylate kinase fromEhrlichia chaffeensis [PDF]

Acta Crystallographica Section F Structural Biology and Crystallization Communications, 2011
The enzyme thymidylate kinase phosphorylates the substrate thymidine 5'-phosphate (dTMP) to form thymidine 5'-diphosphate (dTDP), which is further phosphorylated to dTTP for incorporation into DNA. Ehrlichia chaffeensis is the etiologic agent of human monocytotropic erlichiosis (HME), a potentially life-threatening tick-borne infection.
Banumathi Sankaran, Lynn K. Barrett, David J. Leibly, Lance Stewart, Cassie M. Bryan, Angela Kelley, Jan Abendroth, Wesley C. Van Voorhis   +7 more
openaire   +3 more sources

Prevalência da infecção por Ehrlichia em cães e carrapatos no Nordeste do Brasil [PDF]

, 2010
This study investigated the epidemiology of canine ehrlichiosis in Northeastern Brazil, focusing the identification of the Ehrlichia species and vectors involved.
ALCÂNTARA, Adriano Costa De, BARBOZA, Débora Cristina Portela Medina, FERREIRA, Fernando, FRANKE, Carlos Roberto, GONDIM, Luís Fernando Pita, LABRUNA, Marcelo Bahia, LEAL, Danielle Custódio, SOUZA, Bárbara Maria Paraná da Silva, UZÊDA, Rosângela Soares   +8 more
core   +2 more sources

Lack of Seroreactivity to Ehrlichia chaffeensis Among Rodent Populations [PDF]

Journal of Wildlife Diseases, 1998
A retrospective serosurvey for antibodies to Ehrlichia chaffeensis was conducted on eight species of wild rodents (Mus musculus, Oryzomys palustris, Peromyscus leucopus, Rattus norvegicus, Reithrodontomys humulis, Sciurus carolinensis, Sciurus niger, and Sigmodon hispidus) from the southeastern United States.
J. Mitchell Lockhart, David E. Stallknecht, William R. Davidson, Jacqueline E. Dawson   +3 more
openaire   +3 more sources

Comparative Analysis of Wolbachia Genomes Reveals Streamlining and Divergence of Minimalist Two-Component Systems [PDF]

, 2015
Two-component regulatory systems are commonly used by bacteria to coordinate intracellular responses with environmental cues. These systems are composed of functional protein pairs consisting of a sensor histidine kinase and cognate response regulator ...
Christensen, Steen, Serbus, Laura Renee
core   +1 more source

Ehrlichia chaffeensis Infections in Drosophila melanogaster [PDF]

Infection and Immunity, 2009
ABSTRACT Ehrlichia chaffeensis is an obligate, intracellular bacterium, transmitted by the tick Amblyomma americanum , and is the causative agent of human monocytic ehrlichiosis infections. We previously demonstrated that E. chaffeensis is capable of growing in
Stephen K. Chapes, Tonia Von Ohlen, Alison Luce-Fedrow   +2 more
openaire   +2 more sources

Tick-borne ehrlichiosis infection in human beings [PDF]

Journal of Vector Borne Diseases, 2008
Human monocytic ehrlichiosis is a tick-borne infectious disease transmitted by several tick species, especially Amblyomma spp caused by Ehrlichia chaffeensis. E. chaffeensis is an obligatory intracellular, tick-transmitted bacterium that is maintained in
S. Ganguly, S.K. Mukhopadhayay
doaj  

An Entry-Triggering Protein of Ehrlichia Is a New Vaccine Candidate against Tick-Borne Human Monocytic Ehrlichiosis

mBio, 2020
Ehrlichia chaffeensis is an obligatory intracellular bacterium that causes human monocytic ehrlichiosis, an emerging disease transmitted by the Lone Star tick, Amblyomma americanum. E.
Khemraj Budachetri, Omid Teymournejad, Mingqun Lin, Qi Yan, Mariella Mestres-Villanueva, Guy Nathaniel Brock, Yasuko Rikihisa   +6 more
doaj   +1 more source