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(an'tē-strep-tol'i-sin), Avoid the mispronunciation antistreptoly'sin.
An antibody that inhibits or prevents the effects of streptolysin O elaborated by group A streptococci; the amount of antistreptolysin in the serum is frequently increased during and after streptococcal disease, and comparative titers may aid a diagnosis and prognosis.


(an″tī-strep-tŏ-lī′sĭn) [ anti- + streptolysin]
An antibody that opposes the action of streptolysin.

antistreptolysin O

Abbreviation: ASLO
An antibody against streptolysin O that is used retrospectively to diagnose infections with group A beta-hemolytic streptococci.
References in periodicals archive ?
Limited Tenders are invited for Supply of Lab Items: Anti Malaria card Antigen based card test No, Antistreptolysin O test Latex Agglutination ASLO Titre kit Kit, Cell Pack(pk-301) 20 Lit for Sysmax Can, Chickengunea Test Kit Kit, Cleaning agent 0.
He had a positive throat culture for beta-hemolytic streptococcus which was performed at the initial hospital, but we wanted to confirm the antecedent streptococcal infection and investigated the serum antistreptolysin O (ASO) titer.
Liver and renal function tests and urinalysis, peripheral blood smear and levels of antistreptolysin O, markers for hepatitis B and C, anti-HIV antibodies, Brucella and Salmonella, and chest X-ray and abdominal ultrasonography were within normal ranges.
9]/L) Alanine aminotransferase (U/L) C-reactive protein (mg/L) Ferritin ([micro]g/L) Creatine kinase (U/L) 38 Blood culture Negative Antinuclear antibody, rheumatoid Negative factor Antistreptolysin Negative Day 16 Day 23 Haemoglobin (g/dL) 12.
35-165), immunoglobulin A (IgA) 119 mg/dL (N:1-250), antistreptolysin O antibody 438 IU/mL (normal <200 IU/mL), and finally the absolute eosinophil count was 300/mm[sup.
Freelite[R] serum free light chain assays, IgG subclasses (IgGl -lgG4), IgG, IgA, IgA Subclasses (IgA 1 -lgA2), IgM, IgD, Acid Glycoprotein, Albumin, Albumin CSF, AntiStreptolysin O, (1.
Additional consultations revealed a negative tuberculin skin test, antistreptolysin O, hepatitis panel, nuclear antibody panel, ferritin, rheumatoid factor, histoplasma and coccidiodies antibody titers.
Other markers, such as amylase, antistreptolysin O, cholesterol, IgA, IgM, and transferrin, demonstrated the opposite pattern; that is, values were very low in the neonatal period and increased after 14 days.
Kim SK, Kang HY Kim YC, Lee ES: Clinical comparison of psoriasis in Korean adults and children: correlation with serum antistreptolysin O titers.
Physical examinations and investigations (including complete blood count (CBC), biochemical analyses, cardiological evaluation, hs-CRP (high-sensitivity C-reactive protein) were normal, but serum Antistreptolysin O (ASO) titer was 1333 Todd units (Normal value: 170-330 Todd units) and Erythrocyte Sedimentation Rate (ESR) value was 32/first hour (Normal 0-10).