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Biomedical subjects

A J Guerrero

Publications and source records attributed to A J Guerrero.

6 recordsLinked to original sources
PubMed1980

Prevention of bacterial respiratory infection by an association of bacterial ribosomes and membranous proteoglycans. 2. Objective assessment of the response and of the immunological stimulation.

Using a vaccine preparation administered by aerosol for respiratory anti-infectious purposes and corresponding to the original formula of ribosomes and membrane fractions of microbial germs, the authors investigated during a period of nine months whether an objective, transient or lasting stimulation of the total and specific immunoglobulin (Ig) appeared. They provide a statistical analysis based on several serum Ig measurements and demonstrate the stimulant and lasting effect of the vaccine in the production of specific Ig for a sample of patients compared with controls. In those treated they observed apparently disordered variations of the serum levels of the total Ig, which in fact correspond to the initiation of a dynamic equilibrium in relation to the immunogenicity of the vaccine, the initial level of the total Ig and the production of the specific Ig. Finally, after a booster sequence carried out five month after "primary vaccination", they established the restarting of production of specific Ig accompanied this time by a different dynamic response of the total Ig.

Adjuvants, Immunologic↗
PubMed1976

[Serum IgE in patients suffering from IgA deficiency with or without atopy].

Numerous studies, based upon the frequency of allergic and auto-immune disorders in association with selective deficiency in IgA, as well as the abnormally high proportion of IgA deficiency in atopic patients, have led to the hypothesis that allergy results from a deficiency in IgA during the first months of life. Thus subjects with an initial transient deficiency in IgA (followed by normal or greater than average production) produce an excess of IgE. The aim of this study, carried out by multifactorial data analysis, was to determine whether serum IgE levels were related to those of IgA. Comparison of the serum Ig levels of 4 groups of individuals, with or without IgA deficiency, showed that the production of IgE was more closely related to the respiratory condition responsible than to IgA levels. According to IgA and E levels, the 4 groups differ distinctly, atopic patients without asthma constituting a "bridge" between the control group and those with asthma. In the presence of an apparently identical situation, i.e. an IgA deficiency, individuals may react in two different ways: some produce an abundance of IgE whilst others fail to do so and are more susceptible to recurrent infective episodes. The role of the genetic control of IgE as well as environmental factors in the pathogenesis of allergic manifestations is discussed.

Age Factors↗