Immunologic cross-reactivity between Streptococcus pyogenes type A exotoxin (erythrogenic toxin) and Staphylococcus aureus enterotoxins B and C1 was demonstrated by Ouchterlony double diffusion, Western immunoblot, and immunodot analyses. Specific antiserum to type A streptococcal exotoxin reacted more strongly with staphylococcal enterotoxin B than with enterotoxin C1. The reactivity of type A...

Antisera to mucin of benign mucinous cystadenomas of human ovary were produced in rabbits. These antisera were reacted with cancerous and normal tissue extracts by the Ouchterlony double diffusion test. Distinctive precipitin reactions occurred with colon cancer mucosal extracts. These bands were distinctive for colon cancer and could not be removed by absorption with normal colon mucosa from t...

One hundred and ten patients with chest pain syndromes and resting electrocardiograms demonstrating ST-T abnormalities and/or prior transmural myocardial infarctions were studied by means of the Master's two-step exercise test and selective coronary cine arteriography. Criteria for negativity were modified so that subjects with postexercise heart rates less than 110 beats/min, who did not devel...

The objective of this study was to investigate the effect of equine chorionic gonadotropin (eCG) on ovarian follicles at three stages of development (emergence, dominance and early static phases) during the first follicular wave (FFW) in Holstein heifers. Heifers (n=20) were randomly assigned into four experimental groups (n=5 in each group). Heifers received eCG (500 IU; Folligon®; Intervet, H...

Parent bacteria and L-forms of some streptococci of group A, group D, and Streptococcus MG share common antigens as shown by cross-reactivity in growth inhibition, complement fixation, and Ouchterlony tests. Cross-reactivity between these streptococci or their L-forms with a staphylococcal L-form, or Mycoplasma pneumoniae, was found only rarely and only in low-titer complement fixation tests. R...

Rabbit antisera to newt (T. cristatus) globin were produced by repeated injections of globin and antiglobin antibodies purified by chromatography on globin-Sepharose 4B. Ouchterlony and SDS PAGE analysis indicated that the material eluted from the affinity column was rabbit IgG. The antiglobin antibodies tested by immunodiffusion and ELISA cross-reacted with native hemoglobin and globin from T....

A practical immunologic assay to detect the hormone, prolactin, in body fluids was evaluated. Prolactin content was assayed using positive antiprolactin sera prepared in rabbits and test samples of serum, urine, and urinary extract from a borane exposed female monkey in micro-Ouchterlony gel diffusion and agglutination inhibition tests. The gel diffusion test gave qualitative results while the ...

The aim of this study was to define the electrocardiogram (ECG) changes following the moderate to severe CO intoxication in rats, and also evaluating the effect of erythropoietin (EPO) on observed cardiac disturbances. The growing literature on erythropoietin effect on cardiac ischemia led us to question its effect on cardiotoxicity due to the carbon monoxide poisoning. Wistar rats were exposed...