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On some toxinological aspects of the starfish Stellaster equestris (Retzius, 1805) J. Venom. Anim. Toxins incl. Trop. Dis.
Kanagarajan,U; Bragadeeswaran,S; Venkateshvaran,K.
Whole-body extracts in methanol were obtained from the starfish Stellaster equestris. The crude toxin was fractionated stepwise using diethylaminoethyl (DEAE) cellulose column chromatography. The crude toxin was lethal to male albino mice at a dose of 1.00 mL (containing 531.0 µg/mL protein) when injected intraperitoneally (IP) but the toxicity was abolished in all cases except one upon fractionation. The crude toxin and all the adsorbed fractions exhibited potent hemolytic activity on chicken, goat and human blood. However, group B human erythrocytes were resistant to lysis by all fractions and group O by most of the fractions. Paw edema in mice was caused by the crude toxin and all fractions. Pheniramine maleate and piroxicam blocked the toxicity when...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Starfish; Toxicity; Hemolysis; Human blood groups; Paw edema.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000300005
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Non-association between anti-Toxoplasma gondii antibodies and ABO blood group system J. Venom. Anim. Toxins incl. Trop. Dis.
Rodrigues,ACF; Uezato,S; Vono,MB; Pandossio,T; Spegiorin,LCJF; Oliani,AH; Vaz Oliani,DCM; Brandão de Mattos,CC; de Mattos,LC.
Toxoplasma gondii infects humans through the gastrointestinal tract (GIT), which elicits humoral immune response with specific antibodies. The expression of the ABO blood group glycoconjugates also occurs in this same system and may influence the human susceptibility of infection by T. gondii. The aim of the present study was to investigate the association between ABO blood group phenotypes and the presence of anti-T. gondii antibodies. Data - including age, results of serology tests for T. gondii infection and ABO blood group phenotypes - were assembled from the medical records of 1,006 pregnant women attended in the Base Hospital of the Medical School of São José do Rio Preto, Brazil, between 2001 and 2004. The chi-square test was used to compare the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Human blood groups; Toxoplasma gondii; Toxoplasmosis; ABO blood group; Pregnant women.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000200009
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