An antibody precipitating urease was found in 171 out of 180 human sera. Data obtained on limited material (50 cases) suggest that the anti-urease titre is appreciably higher in the serum of patients suffering from gastric ulcer. This is a pointer towards a possible antigen-antibody mechanism in the genesis of chronic gastric ulceration.

BACKGROUND Rabies is preventable by pre- and/or post-exposure prophylaxis consisting of series of rabies vaccinations and in some cases the use of immunoglobulins. The success of vaccination can be estimated either by measuring virus neutralising antibodies or by challenge experiment. Vaccines based on rabies virus offer cross-protection against other lyssaviruses closely related to rabies viru...

IgG antibody titres against Chlamydia trachomatis were measured using a whole inclusion assay (Electro-Nucleonics Laboratories, Bethesda, Maryland, USA) in single serum samples of patients who presented for termination of pregnancy with evidence of infection with this organism (case group) and of 30 women with no evidence of infection (control group). Case and control patients were matched for ...

1. Homologous vaccine was injected into abdominal organs of rabbits after different intervals following sensitization by a single or by repeated intracutaneous injections of heat-killed pneumococci Type I or of formalin-killed hemolytic streptococci (Strain AB(13)). 2. Local inflammation with or without necrosis was observed in the liver and in the spleen of most of the rabbits. Injections into...

References ADDISON, G.M., HALES, C.N., WOODHEAD, J.S. & O'RIORDAN, J.L.H. (1971) Immunoradiometric assay of parathyroid hormone. Journal of Endocrinology, 49, 521. ALLEN, E.H., MILLARD, F.J.C. & NASSIM, J.R. (1968) Hypohyperparathyroidism. Archives of Disease in Childhood, 43, 295. BIJVOET, O.L.M. & MORGAN, D.B. (1971) The tubular reabsorption of phosphate in man. In: Phosphate et Mftabolisme P...

A prospective analysis of 50 successive patients with systemic lupus erythematosus, seen over a 4-year period, has been completed. 336 sera were examined for the presence of antibody to ribonucleoprotein using a counterimmunoelectrophoresis assay. Antibody was present in the sera of 16% of patients and was detectable in about the same titre throughout the course of the disease. The presence of ...

The effects of steroidal and non-steroidal anti-inflammatory drugs on the established lesion of type II collagen induced arthritis in rats were evaluated by measuring the hind paw oedema and anti-type II collagen antibody titre. Dexamethasone, a steroidal anti-inflammatory drug, reduced the anti-type II collagen antibody titre and markedly suppressed the established lesion of type II collagen i...

X-radiation and nitrogen mustard administration inhibit the formation of precipitins for whole bovine serum and bovine serum gamma globulin in the rabbit. When specific antibody formation is inhibited by these agents, intravenous injection of a single large dose of bovine serum gamma globulin is not usually followed by the development of tissue lesions 9 to 11 days later, as occurs fairly regul...