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Biomedical subjects

A C Ghory

Publications and source records attributed to A C Ghory.

6 recordsLinked to original sources

Extended evaluation of allergic bronchopulmonary aspergillosis.

The clinical status and laboratory findings of 19 patients with allergic bronchopulmonary aspergillosis (ABPA) evaluated over a period ranging from 3 months to 10 years are reviewed (average 2.6 years). Criteria establishing the diagnosis of ABPA as well as an estimate of duration of ABPA prior to diagnosis in selected cases is presented. 10 of the 19 patients currently require chronic corticosteroids for control of asthma as compared to 4 patients at the time of initial diagnosis. 16 exacerbations of ABPA have occurred in 8 patients. There is no correlation between the severity of asthma and either the number of exacerbations or persistent radiographic stigmata of ABPA. Pulmonary function tests range from normal to obstructive and restrictive changes.

Adolescent↗

IgA antibody against Aspergillus fumigatus antigen in patients with allergic bronchopulmonary aspergillosis.

IgA antibodies against Aspergillus fumigatus (Af) antigen were measured by a radioimmunoassay in sera from patients with allergic bronchopulmonary aspergillosis (ABPA) and compared with IgA antibody levels in asthmatics who had positive prick tests to Af and normal controls. The assay for IgA antibody discriminated between both control groups and the ABPA group at two serum dilutions (10(-2) and 10(-3)) but did not discriminate all individual ABPA sera from the peak levels of antibody in the control groups. IgA antibody against Af may participate in the immunopathogenetics of pulmonary inflammation in some cases of ABPA and may be of some diagnostic value in some, but not all, cases.

Antigens, Fungal↗

In vitro IgE formation by peripheral blood lymphocytes from normal individuals and patients with allergic bronchopulmonary aspergillosis.

Peripheral blood lymphocytes from five normal donors and five individuals with allergic bronchopulmonary aspergillosis (ABPA) were used for measurement of in vitro IgE formation in tissue culture preparations. IgE was measured by a sensitive radioimmunoassay using concentrated tissue culture medium (TCM) and expressed as ng IgE/ml of TCM. The results demonstrated that IgE was formed by unstimulated lymphocytes from one of five normal donors (range 1.5-2.4 ng/ml) and in two of five ABPA donors (range 2-4 ng/ml). However, when different dilutions of pokeweed mitogen were added to the tissue culture, three of five normal donors and three of five ABPA donors in remission showed enhanced IgE formation. At the time of an ABPA exacerbation in one individual, there was a definite increse in IgE synthesis up to 40 ng/ml which was suppressed by pokeweed mitogen to 17.3 ng/ml. Clear differences between normals and ABPA patients in remission are not apparent.

Aspergillosis, Allergic Bronchopulmonary↗

The management of allergic bronchopulmonary aspergillosis.

Twenty-five patients with allergic bronchopulmonary aspergillosis (ABPA) were observed for periods of 12 months to 10 years (average duration, 2.6 years) after initial therapy with prednisone, which was then tapered and discontinued unless maintained at minimal doses as required for control of asthma. Thirteen patients have had no recurrence, 4 patients did not comply with the initial regimen and could not be considered to be controlled, and 8 patients had 12 recurrent episodes of ABPA characterized by pulmonary infiltrates with no explanation other than ABPA. The exacerbations were closely correlated with sharp increases in total serum IgE, which subsequently decreased after resumption of prednisone therapy. The increase of IgE preceded the pulmonary infiltrates in 7 or 12 exacerbations. The exacerbations, characterized by increased serum IgE and pulmonary infiltrates, may be associated with minimal symptoms. Acute asthma without pulmonary infiltrates was not associated with increased IgE. Four exacerbations occurred during administration of beclomethasone diproprionate used for control of asthma, and therefore, this agent does not appear to prevent or reverse exacerbations of ABPA. Twelve exacerbations occurred in 8 persons, with 2 patients having 4 and 2 recurrences, respectively. This suggests that exacerbations are more likely to occur in certain patients. Serial measurements of total serum IgE appears to be a useful index of disease activity in ABPA. In the 4 patients who did not comply with the prednisone therapy regimen or regular physician visits, patterns of IgE changes, clinical evaluations, and chest roentgenograms were not of use in evaluation of the clinical state or progress of the patient. A treatment regimen is suggested for initial therapy and recurrences of ABPA on the basis of these observations.

Aspergillosis, Allergic Bronchopulmonary↗