Biomedical subjects
Publications and source records attributed to P Kohler.
T lymphocytes from the blood of two thymoma patients with hypogammaglobulinaemia suppressed the in vitro proliferation of allogeneic pre-B cells. Both patients lacked pre-B and B cells in blood and bone marrow. It is possible that pre-B cells, as well as B cells, may be targets for suppression by T cells in thymoma patients with hypogammaglobulinaemia.
UNLABELLED: 30 hysterectomized and ovarectomized women were treated with three different estrogens: EE2 orally, E3 orally, and E3-suc intramuscularly. Each patient received one substance over 5 days doubling the dose every consecutive day, and switching to another estrogen after a treatment free interval of 2 days, rising the dosage of the second preparation twofold every consecutive day over another 5 days. Thus, each patient served as her own control with respect to 2 of the 3 tested estrogens. Six groups were required to test all sequences possible. The patients were allocated by random. GOT, GPT, LAP, AP and bilirubin were estimated daily over 2 weeks. The starting dose of EE2 was 0.25 mg, of E3 2 mg, and of E3-suc 2.5 mg. RESULTS: There were marked elevations of all serum enzymes during the week of EE2 treatment. If EE2 was given in the first week, and either E3 or E3-suc in the second one there was a prompt fall of all enzyme levels in spite of the approximately tenfold higher dose of the latter two estrogens. There were only minor elevations of the enzymes after oral E3 and parenteral E3-suc in some subjects and no differences of response between these two estrogens. Bilirubin reacted with an overall rise in the majority of patients irrespective of the type of estrogen.
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The incidence of serum antidust and antifungal precipitins was determined by counterimmunoelectrophoresis in 317 atopic and nonatopic subjects of three geographic areas (north central, southern, and western United States). The selected lyophilized crude antigens employed were from house dust, Micropolyspora faeni, Candida albicans, Alternaria tenuis, Aspergillus fumigatus, Puccinia coronata, Cantharellus cibarius, and Amborsia trifida. Antidust precipitins were detected with high frequency in atopic and nonatopic subjects of each geographic area (48 to 71 percent of different population subgroups). Precipitin reactions were generally intense and often multiple, in keeping with the marked heterogeneity of the crude dust antigen employed. Antidust precipitins were also present in serum fractions precipitated with ammonium sulfate and in IgG-rich fractions obtained by gel filtration (Sephadex G-200) and diethylaminoethyl-cellulose chromatography. Precipitins against crude somatic fungal and actinomycetic antigens were detected with considerably less frequency in all populations surveyed, considerably less frequency in all populations surveyed, and antiragweed precipitins were not detected. Our results suggest that prolonged environmental exposure to diverse, ubiquitous organic dusts results in a "normal" serum precipitating-antibody response. They also extend our previous finding of a high precipitin response against organic dusts in residents of the Gulf south area compared to other geographic areas.
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