نتایج جستجو برای: listeria

تعداد نتایج: 11406  

Journal: :Applied and environmental microbiology 2013
Rudolf Schneebeli Thomas Egli

Members of the genus Listeria are fastidious bacteria with respect to their nutritional requirements, and several minimal media described in the literature fail to support growth of all Listeria spp. Furthermore, strict limitation by a single nutrient, e.g., the carbon source, has not been demonstrated for any of the published minimal media. This is an important prerequisite for defined studies...

2014
Elisabet Frande-Cabanes Lorena Fernandez-Prieto Ricardo Calderon-Gonzalez Estela Rodríguez-Del Río Sonsoles Yañez-Diaz Monica López-Fanarraga Carmen Alvarez-Domínguez

Microglia, the innate immune cells of the brain, plays a central role in cerebral listeriosis. Here, we present evidence that microglia control Listeria infection differently than macrophages. Infection of primary microglial cultures and murine cell lines with Listeria resulted in a dual function of the two gene expression programmes involved in early and late immune responses in macrophages. W...

Journal: :The Journal of Experimental Medicine 1997
Thomas Fehr Gabriele Schoedon Bernhard Odermatt Thomas Holtschke Markus Schneemann Martin F. Bachmann Tak W. Mak Ivan Horak Rolf M. Zinkernagel

Listeria monocytogenes is widely used as a model to study immune responses against intracellular bacteria. It has been shown that neutrophils and macrophages play an important role to restrict bacterial replication in the early phase of primary infection in mice, and that the cytokines interferon-gamma (IFN-gamma) and tumor necrosis factor-alpha (TNF-alpha) are essential for protection. However...

ژورنال: Medical Laboratory Journal 2009
Bakhshandeh Nosrat, S, Behnampoor, N, Hedayat Mofidi, SM, Moradi, A, Saeedi, M,

Abstract Background and objectives: Infection has a Leading role in pregnancy. Cytomegalovirus (CMV), listeria and Toxoplasma are the most common causes of infection in human. Based on the previous researches, about 15-25 percent of being infected during pregnancy leads to some complications such as abortion, fetal death, early labor and etc. This study was designed to determine the seroprevale...

Elahe Taj bakhsh Hassan Momtaz Monir Doudi Shole Yadollahi,

The objective of this study was to isolation and characterization of Listeria species and determines Listeria monocytogenes serotypes in fresh fish, shrimp, crab and lobster in Isfahan and Shahrekord, Iran. From September 2010 to April 2011, a total of 300 samples of fresh fish, shrimp, crab and lobster were obtained from randomly selected retail stores in Isfahan and Shahreko...

2010

Listeria monocytogenes is a gram positive, facultative intracellular pathogen with the capacity to cause food poisoning outbreaks as well as severe illness in vulnerable human population groups. It can cause a rare but serious disease called listeriosis with high fatality rates (20–30%) compared with other foodborne microbial pathogens. Although Listeria monocytogenes is infective to all human ...

2013
Rong Hu Jia Li Kun Yao Miao Miao Ke Zhu Zhuogang Liu

PATIENT Female, 58 FINAL DIAGNOSIS: Listeria septicemia Symptoms: Nausea • vomitting • high fever • apathetic intelligence • repeated convulsion MEDICATION Levofloxacin Clinical Procedure: - Specialty: Hematology Objective: Rare disease. BACKGROUND Multiple myeloma is a hematological malignancy that frequently causes secondary diabetes due to chemotherapy using hormones and infection due to...

Journal: :The Journal of clinical investigation 1987
R W Redline C Y Lu

Recent evidence suggests that local immunoregulation may prevent rejection of the placenta by the mother. This local immunoregulation may also compromise the response to placental infection. Listeria monocytogenes infection in 121 pregnant mice and 1,050 fetoplacental units was examined and the kinetics of bacterial growth in various maternal and fetal tissues were determined. A subset of pregn...

Journal: :Journal of food protection 2002
Sreenivas R Kanuganti Irene V Wesley P Gopal Reddy James McKean H Scott Hurd

In this study, we surveyed hogs (n = 300) as well as pork products (ground pork and raw chitterlings) for Listeria monocytogenes. Pig specimens collected before (tonsil swabs) and after slaughter (tonsils, lymph nodes, carcass swabs, and rectal contents) were examined for L. monocytogenes by enrichment with conventional enrichment broths followed by subculturing to selective agar. A multiplex p...

Journal: :Journal of AOAC International 2002
Catherine W Donnelly

Detection of L. monocytogenes is often limited by the performance of the enrichment media used to support bacterial growth to detectable levels. Because Listeria may exist at extremely low levels in foods, sample enrichment protocols must amplify these low initial populations to detectable limits. Listeria may also exist in an injured state in food products as a result of processing treatments ...

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