Results 71 to 80 of about 162 (87)

The seroprevalence and risk factors for exposure to Neospora caninum and Neospora hughesi in Ontario broodmares

Veterinary Parasitology: Regional Studies and Reports
The seroprevalence and risk factors for exposure to Neospora caninum and Neospora hughesi in broodmares in Ontario were investigated. Sixty of the 219 (27.4%) study broodmares were seropositive for N. caninum and 65/219 (29.7%) for N. hughesi with cut-offs of ≥1:40 and ≥1:160, respectively.
Robert A Foster
exaly   +3 more sources

QUALITATIVE EVALUATION OF SELECTIVE TESTS FOR DETECTION OF NEOSPORA HUGHESI ANTIBODIES IN SERUM AND CEREBROSPINAL FLUID OF EXPERIMENTALLY INFECTED HORSES

Journal of Parasitology, 2002
Neospora hughesi is a newly recognized protozoan pathogen in horses that causes a myeloencephalitis similar to Sarcocystis neurona. There are no validated serologic tests using the gold standard sera that are currently available to detect specific N.
Andrea Packham, Patricia A Conrad, Byron L Blagburn   +2 more
exaly   +3 more sources

Equine protozoal myeloencephalitis due to Neospora hughesi and equine motor neuron disease in a mule

Veterinary Ophthalmology, 2010
A 23-year-old female mule was presented for bilateral ocular abnormalities and an abnormal pelvic limb gait.Anisocoria, unilateral enophthalmos, medial strabismus, ptosis, pupillary light reflex deficits, and bilateral reticulated pigmentary retinopathy were observed on ophthalmic examination.
Mónica Aleman, Carrie Finno, J Seth Eaton   +2 more
exaly   +4 more sources

Neospora hughesi

2012
exaly   +2 more sources

Risk of postnatal exposure to Sarcocystis neurona and Neospora hughesi in horses

American Journal of Veterinary Research, 2004
Abstract Objective —To estimate risk of exposure and age at first exposure to Sarcocystis neurona and Neospora hughesi and time to maternal antibody decay in foals.
Paulo C, Duarte, Patricia A, Conrad, W David, Wilson, Gregory L, Ferraro, Andrea E, Packham, Jeanne, Bowers-Lepore, Tim E, Carpenter, Ian A, Gardner   +7 more
openaire   +2 more sources

Neospora hughesi: experimental infections in mice, gerbils, and dogs

Veterinary Parasitology, 2000
Neospora hughesi is a recently described cause of equine protozoal myeloencephalitis (EPM). A rodent model for pathogenicity would facilitate development of therapies to be used in horses. In the present study, we examined the susceptibility of BALB/c gamma-interferon gene knockout (gamma-INFKO), BALB/c, CD-1, and C57BL/6 strains of mice and gerbils to
C P, Walsh, R B, Duncan, A M, Zajac, B L, Blagburn, D S, Lindsay   +4 more
openaire   +2 more sources

CHARACTERIZATION OF THE OREGON ISOLATE OFNEOSPORA HUGHESIFROM A HORSE

Journal of Parasitology, 2001
Neospora hughesi was isolated in cell cultures inoculated with homogenate of spinal cord from a horse in Oregon. Tachyzoites of this Oregon isolate of N. hughesi were maintained continuously by cell culture passage and tachyzoites were infective to immunosuppressed mice. Gamma interferon gene knockout (KO) mice injected with tachyzoites developed fatal
J P, Dubey, S, Liddell, D, Mattson, C A, Speert, D K, Howe, M C, Jenkins   +5 more
openaire   +2 more sources

Differentiation of Neospora hughesi from Neospora caninum based on their immunodominant surface antigen, SAG1 and SRS2.

International journal for parasitology, 2000
Neospora hughesi is a newly recognised parasite that is closely related to Neospora caninum, and is a cause of equine protozoal myeloencephalitis. We have characterised two N. hughesi immunodominant tachyzoite antigens which exhibit antigenic and molecular differences from the homologous tachyzoite antigens on N. caninum. These antigens on N.
A E, Marsh, D K, Howe, G, Wang, B C, Barr, N, Cannon, P A, Conrad   +5 more
openaire   +2 more sources

Seroprevalences of anti-Sarcocystis neurona and anti-Neospora hughesi antibodies among healthy equids in the United States

Journal of the American Veterinary Medical Association, 2017
Abstract OBJECTIVE To describe the general seroprevalence of anti-Sarcocystis neurona and anti-Neospora hughesi antibodies among healthy equids by use of indirect fluorescent antibody tests and determine potential risk factors for seropositivity. DESIGN Cross-sectional study.
Kaitlyn E, James, Woutrina A, Smith, Patricia A, Conrad, Andrea E, Packham, Leopoldo, Guerrero, Mitchell, Ng, Nicola, Pusterla   +6 more
openaire   +2 more sources

Diagnosis of Equine Protozoal Myeloencephalitis Using Indirect Fluorescent Antibody Testing and Enzyme-Linked Immunosorbent Assay Titer Ratios for Sarcocystis neurona and Neospora hughesi

Journal of Equine Veterinary Science, 2016
The aim of this study was to compare two serologic tests used to support a diagnosis of equine protozoal myeloencephalitis (EPM). Serum and cerebrospinal fluid (CSF) samples were analyzed for antibodies to Sarcocystis neurona and Neospora hughesi by indirect fluorescent antibody testing (IFAT) and surface antigens of S. neurona and N. hughesi by enzyme-
Anna C. Renier, Jennifer K. Morrow, Amy J. Graves, Carrie J. Finno, Daniel K. Howe, Sean D. Owens, Eva Tamez-Trevino, Andrea E. Packham, Patricia A. Conrad, Nicola Pusterla   +9 more
openaire   +1 more source