27 kDa Fasciola gigantica glycoprotein for the diagnosis of prepatent fasciolosis in cattle.
An indirect enzyme-linked immunosorbent assay (ELISA) using 27 kDa glycoprotein of Fasciola gigantica has been evaluated for its potential use in the diagnosis of bovine fasciolosis. Following experimental infection of rabbits, F. gigantica infection-induced antibodies were isolated and later used as ligands in affinity chromatography for isolation of infection-induced antibody-specific proteins. Among the five infection-specific proteins isolated, a glycoprotein of 27 kDa was later isolated by second-step purification using concanavalin A matrix. In crossbred cattle receiving different doses of infection (100, 200 and 400 metacercariae), the anti-27 kDa antibodies were detected as early as the 2nd week post infection. No direct correlation between initial dose, antibody response and fluke establishment was recorded. No cross-reaction was noted with the sera of goats experimentally infected with Paramphistomum epiclitum. ELISA with the 27 kDa glycoprotein could be a feasible diagnostic tool for the early detection of bovine fasciolosis.
Ghosh
S
S
Division of Parasitology, Indian Veterinary Research Institute, Izatnagar 243122, Uttar Pradesh, India. sghoshp@yahoo.co.in
Rawat
Preeti
P
Velusamy
R
R
Joseph
David
D
Gupta
S C
SC
Singh
B P
BP
D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood; D000947:Antigens, Helminth / Q000097:blood / Q000276:immunology; D002417:Cattle; D002418:Cattle Diseases / Q000175:diagnosis / Q000469:parasitology*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005211:Fascioliasis / Q000175:diagnosis / Q000662:veterinary*; D005243:Feces / Q000469:parasitology; D006023:Glycoproteins / Q000097:blood* / Q000276:immunology; D015511:Goat Diseases / Q000469:parasitology; D006041:Goats; D015801:Helminth Proteins / Q000097:blood* / Q000276:immunology; D008297:Male; D010250:Paramphistomatidae; D011817:Rabbits; D012680:Sensitivity and Specificity; D014201:Trematode Infections / Q000276:immunology / Q000662:veterinary
D000909:Antibodies, Helminth; D000947:Antigens, Helminth; D006023:Glycoproteins; D015801:Helminth Proteins
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