ISSN:
1573-7446
Keywords:
agglutination
;
IgG-sensitized latex
;
lactoferrin
;
reversed passive latex agglutination
;
RPLA
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract A method is described for preparing latex particles sensitized with IgG antibody (IgG-sensitized latex) applicable to the slide reversed passive agglutination (RPLA) test. Soap-free latex (latex) was sensitized with IgG which had been isolated from rabbit anti-bovine lactoferrin serum using protein A Sepharose CL 4B. Unadsorbed protein-binding sites on the surface of latex were blocked with bovine serum albumin (BSA). IgG-sensitized latex that gave better agglutination in RPLA could be selectively obtained by centrifugation at 19 900g for 15 min in 0.01 mol/L glycine buffer (pH 7.3; specific gravity 1.042) containing 3% NaCl, 5% saccharose and 2% choline chloride. By dispersing this IgG-sensitized latex in 0.01 mol/L glycine buffer (pH 7.3) containing 1–2% BSA, a uniformly suspended, highly reactive, readily agglutinable preparation was obtained.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01839325
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