Solutions and emulsions of sodium or potassium salts in a series of saturated fatty acids from C₈ to C₁₈ were given in a dose of 0.5 g intraduodenally to healthy males or patients with healed duodenal ulcer. A double-lumen Sarles tube with a balloon placed in the proximal duodenum was used. The substances were instilled after a plateau of gastric acid secretion induced by a continuous infusion of pentagastrin was reached. In order to exclude unspecific effects, the test solutions were adjusted to a pH around 7.0 and to plasma isosmolality. Compared with the other tested substances, the emulsion of 0.5 g sodium-oleate was the most effective in inhibiting the stimulated gastric acid secretion. Sodium caprinate and caprylate had a considerable, but smaller effect than oleic acid on the secretory plateau. Palmitate and laurate provoked only a slight decrease in acid secretion. Myristate was ineffective. These results could suggest that different receptors are responsible’ for fat-induced inhibition of the gastric acid secretion.

The exposure during the Mexico-trip, the pulmonary infiltration, the histology and the significant raised titers in specific serological tests led to the diagnosis of a general infection by the fungus coccidioides immitis. In addition to pathogenetic aspects of coccidioidomycosis the diagnostic approaches and relevant therapeutic strategies are discussed.

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