Listeria

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Listeria

 [lis-tēr´e-ah]
a genus of gram-positive bacteria (family Corynebacterium). L. monocyto´genes causes listeriosis.

Listeria

(lis-tēr'ē-ă),
A genus of aerobic to microaerophilic, motile, peritrichous bacteria containing small, coccoid, gram-positive rods; these organisms tend to produce chains of 3-5 cells and, in the rough state, elongated and filamentous forms. Cells 18-24 hours old may show a palisade arrangement with a few V or Y forms; the bacteria produce acid but no gas from glucose and are found in the feces of humans and other animals, on vegetation, and in silage and are parasitic on poikilothermic and warm-blooded animals, including humans. The type species is Listeria monocytogenes.
[Joseph Lister]

Listeria

/Lis·te·ria/ (lis-tēr´e-ah) a genus of gram-negative bacteria (family Corynebacterium); L. monocyto´genes causes listeriosis.

listeria

(lĭ-stîr′ē-ə)
n.
Any of various rod-shaped, gram-positive bacteria of the genus Listeria, which includes the causative agent of listeriosis.

Lis·ter·i·a

(lis-tēr'ē-ă)
A genus of aerobic to microaerophilic motile bacteria (family Corynebacteriaceae) containing small, coccoid, gram-positive rods; found in the feces of humans and other animals, on vegetation, and in silage, and parasitic on poikilothermic and warm-blooded animals, including humans. The type species is L. monocytogenes.

Lister,

Joseph (Lord Lister), English surgeon, 1827-1912.
Listeria - a genus of aerobic to microaerophilic, motile, peritrichous bacteria.
Lister dressing - the first type of antiseptic dressing, one of gauze impregnated with carbolic acid.
Lister forceps
Lister knife
Lister method - antiseptic surgery as first advocated by Lister in 1867. Synonym(s): listerism
Lister scissors
Lister tubercle - a small prominence on the dorsal aspect of the distal end of the radius that serves as a trochlea or pulley for the tendon. Synonym(s): dorsal tubercle of radius
Listerella - in bacteriology, a rejected generic name sometimes cited as a synonym of Listeria; the type species is Listerella hepatolytica.
Listerine - antiseptic mouthwash.
listerism - Synonym(s): Lister method

Lis·ter·i·a

(lis-tēr'ē-ă)
Genus of aerobic tomicroaerophilic, motile, peritrichous bacteria containing small, coccoid, gram-positive rods; found in the feces of humans and other animals, on vegetation, and in silage. The type species is L. monocytogenes.

Listeria

a genus of gram-positive bacteria in the form of small rods which frequently resemble diphtheroids. The most important species, L. monocytogenes, is found chiefly in ruminants and can be divided into 16 serovars on the basis of somatic and flagellar antigens and there is considerable genetic diversity between serovars. Serovars 4b, 1/2a and 1/2b and 3 are most commonly isolated from diseased animals but there are geographical differences. It causes a multi-syndrome disease referred to as listeriosis. L. ivanovii causes abortion in cattle and sheep.
References in periodicals archive ?
Unlike listerial meningitis, where two-thirds of patients are immunosuppressed by medication, advanced age or comorbid disease, LBE has been reported to occur mainly in immunocompetent adults.
Radiological appearances are nonspecific, however, and in a region of high tuberculosis prevalence listerial brainstem abscesses may be radiologically indistinguishable from tuberculomas.
monocytogenes culture Blood Neg (x 2) Pos (x 2) CSF Neg ND Brain biopsy ND ND CT Well-defined Poorly defined ring lesions lesions dorsal Po, R Po, R MCP; L MCP3 incomplete ring enhancement MRI Distribution ND R cerebral ped, of high R MCP, Me, signal on upper cord T2WI & FLAIR sequences Enhancement ND Incomplete pattern on T1WI ring pre-/post gadolinium CN enhancement Y Y present Radiological Tuberculoma, Demyelination differential listerial (ADEM) reported abscess Patient 5 6 Inflammatory markers WCC 15.
3) Although our patient presented with classic headaches suggesting an intracranial mass lesion, headache was a less common presenting symptom among patients with listerial abscesses than in those with other brain abscesses.
3) Most reported deaths due to listerial abscesses occurred within a month of diagnosis and while the patient was taking appropriate antibiotics.
The pathology of listerial abscesses has not been well-characterized, however several studies have examined the pathological appearance of listerial rhombencephalitis in both humans and ruminants.
Rothman cited how unusual Listerial disease is; with there being fewer than 800 cases in the world literature over the past 50+ years.
Los neutrofilos juegan un papel importante en el control de la fase aguda de la infeccion listerial (Rogers 1993), y en la destruccion "in vivo" de Listeria en hepatocitos infectados (Conlan 1991).
monocytogenes y prolonga el curso de la infeccion primaria en el higado (Abram 1997); lo anterior se correlaciona con la deficiencia en la produccion de IFN-g que resulta en la invasion listerial de la placenta y los tejidos fetales (Nakane et al.
Las lesiones cerebrales en la meningoencefalitis listerial son tipicas y muy similares en humanos o animales y consisten en nodulos perivasculares de infiltrados inflamatorios, compuestos de celulas mononucleares, neutrofilos dispersos y linfocitos; microabscesos parenquimales y focos de necrosis.
The commercial protective culture FloraCarn L-2 efficiently prevents excessive listerial growth but still allows for a significant increase of listerial numbers.