Results 11 to 20 of about 5,953 (200)

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 18: Suitability of taxonomic units notified to EFSA until March 2023

EFSA Journal, Volume 21, Issue 7, July 2023., 2023
Abstract The qualified presumption of safety (QPS) approach was developed to provide a regularly updated generic pre‐evaluation of the safety of microorganisms, intended for use in the food or feed chains, to support the work of EFSA's Scientific Panels.
EFSA Panel on Biological Hazards (BIOHAZ), Konstantinos Koutsoumanis, Ana Allende, Avelino Alvarez‐Ordóñez, Declan Bolton, Sara Bover‐Cid, Marianne Chemaly, Alessandra De Cesare, Friederike Hilbert, Roland Lindqvist, Maarten Nauta, Romolo Nonno, Luísa Peixe, Giuseppe Ru, Marion Simmons, Panagiotis Skandamis, Elisabetta Suffredini, Pier Sandro Cocconcelli, Pablo Salvador Fernández Escámez, Miguel Prieto Maradona, Amparo Querol, Lolke Sijtsma, Juan Evaristo Suarez, Ingvar Sundh, Fulvio Barizzone, Sandra Correia, Lieve Herman   +26 more
wiley   +1 more source

Report of the Scientific Committee of the Spanish Agency for Food Safety and Nutrition (AESAN) on the prospection of biological hazards of interest in food safety in Spain (2)

Food Risk Assess Europe, Volume 1, Issue 1, March 2023., 2023
Abstract This report addresses the prospection of biological hazards for some types of food that may pose a risk to the population and that are not currently included in the official control programs in Spain. It completes and updates the 2018 report by the Scientific Committee of the Spanish Agency for Food Safety and Nutrition (AESAN, 2018). A number
Carlos M. Franco Abuín, Carlos Alonso Calleja, Pablo Fernández Escámez, Victoria Moreno Arribas, Gloria Sánchez Moragas, Antonio Valero Díaz   +5 more
wiley   +1 more source

Oral Inflammation and Human Papilloma Virus Association among Hispanics

International Journal of Dentistry, Volume 2023, Issue 1, 2023., 2023
Background. Identifying factors related to persistent human papillomavirus (HPV) infection is essential to reduce the incidence of HPV‐related cancers. Objective. To evaluate whether gingival/periodontal inflammation is associated with oral HPV infection. Methods.
Maira A. Castañeda-Avila, Cynthia M. Pérez, José Vivaldi, Elba C. Díaz-Toro, Jeslie M. Ramos-Cartagena, Oelisoa M. Andriankaja, Ana P. Ortiz, Paolo Francesco Manicone   +7 more
wiley   +1 more source

The novel protein ScrA acts through the SaeRS two‐component system to regulate virulence gene expression in Staphylococcus aureus

Molecular Microbiology, Volume 117, Issue 5, Page 1196-1212, May 2022., 2022
In this study, we propose that the small protein ScrA acts as a link between the ArlRS and SaeRS two‐component systems in Staphylococcus aureus. ArlR positively regulates scrA expression and the resulting ScrA protein activates the SaeRS system, causing increased expression of Sae regulon genes.
Marcus A. Wittekind, Andrew Frey, Abigail E. Bonsall, Paul Briaud, Rebecca A. Keogh, Richard E. Wiemels, Lindsey N. Shaw, Ronan K. Carroll   +7 more
wiley   +1 more source

Contribution of a ZIP‐family protein to manganese uptake and infective endocarditis virulence in Streptococcus sanguinis

Molecular Microbiology, Volume 117, Issue 2, Page 353-374, February 2022., 2022
Manganese transport in Streptococcus sanguinis has long been known to be mediated by an ABC transporter. When that transporter is eliminated, a newly discovered ZIP‐family protein, TmpA, takes over the role of manganese transport and in so doing, contributes to serum growth and endocarditis virulence.
Tanya Puccio, Karina S. Kunka, Seon‐Sook An, Todd Kitten   +3 more
wiley   +1 more source

Manganese transport by Streptococcus sanguinis in acidic conditions and its impact on growth in vitro and in vivo

Molecular Microbiology, Volume 117, Issue 2, Page 375-393, February 2022., 2022
Streptococcus sanguinis is an oral bacterium that competes with Streptococcus mutans, a causative agent of dental caries. We report that growth of S. sanguinis SK36 in acidic media leads to decreased manganese levels and changes in carbon catabolite repression.
Tanya Puccio, Seon‐Sook An, Alexander C. Schultz, Claudia A. Lizarraga, Ashley S. Bryant, David J. Culp, Robert A. Burne, Todd Kitten   +7 more
wiley   +1 more source

Update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA 15: suitability of taxonomic units notified to EFSA until September 2021

EFSA Journal, Volume 20, Issue 1, January 2022., 2022
Abstract The qualified presumption of safety (QPS) approach was developed to provide a generic pre‐evaluation of the safety of biological agents. The QPS approach is based on an assessment of published data for each agent, with respect to its taxonomic identity, the body of relevant knowledge and safety concerns.
EFSA Panel on Biological Hazards (BIOHAZ), Kostas Koutsoumanis, Ana Allende, Avelino Alvarez‐Ordóñez, Declan Bolton, Sara Bover‐Cid, Marianne Chemaly, Robert Davies, Alessandra De Cesare, Friederike Hilbert, Roland Lindqvist, Maarten Nauta, Luisa Peixe, Giuseppe Ru, Marion Simmons, Panagiotis Skandamis, Elisabetta Suffredini, Pier Sandro Cocconcelli, Pablo Salvador Fernández Escámez, Miguel Prieto‐Maradona, Amparo Querol, Lolke Sijtsma, Juan Evaristo Suarez, Ingvar Sundh, Just Vlak, Fulvio Barizzone, Michaela Hempen, Lieve Herman   +27 more
wiley   +1 more source

Genome‐wide identification of Streptococcus sanguinis fitness genes in human serum and discovery of potential selective drug targets

Molecular Microbiology, Volume 115, Issue 4, Page 658-671, April 2021., 2021
The fitness of S. sanguinis mutants in human serum was screened by ORF‐seq. The biological functions of these fitness genes were analyzed. The virulence factors in a rabbit endocarditis model and potential selective drug targets in human serum were explored.
Bin Zhu, Shannon P. Green, Xiuchun Ge, Tanya Puccio, Haider Nadhem, Henry Ge, Liang Bao, Todd Kitten, Ping Xu   +8 more
wiley   +1 more source

Meningitis due to Streptococcus suis in Two Patients with Occupational Exposure from Northeastern Brazil

Case Reports in Infectious Diseases, Volume 2021, Issue 1, 2021., 2021
Streptococcus suis is an emerging zoonotic agent that causes bacterial meningitis. S. suis is an encapsulated Gram‐positive, facultative anaerobic bacterium. This infection usually manifests in humans as meningitis, endocarditis, septicemia, and/or arthritis. The primary groups at risk for S.
Francisco Breno Ponte de Matos, Luís Arthur Brasil Gadelha Farias, Camila Negreiro Dias, Lorena Pinho Mendes, Pedro Pinheiro de Negreiros Bessa, Annac Skiada   +5 more
wiley   +1 more source

Características epidemiológicas de la endocarditis infecciosa. Experiencia de seis años

Revista Colombiana de Cardiología, 2022
Introducción: La endocarditis infecciosa continúa siendo una condición amenazante para la vida, que puede afectar cualquier órgano y sistema, con alta mortalidad, atribuible principalmente a Staphylococcus aureus.
Edwin J. Ariza, Edwin U. Suárez, Santiago Giraldo, Fabián A. Jaimes, Edison Muñoz, Juan M. Senior   +5 more
doaj   +1 more source