Conformational analyses on histamine H2-receptor antagonists.

In a series of compounds with H2-antihistaminic activity, a conformational analysis was performed based on force field calculations. The drugs studied were cimetidine, ranitidine, famotidine, roxatidine and the conformationally more restricted ICI127032. For the compounds containing a flexible chain, the local minima conformations and the global minimum conformation were calculated.

[Malignant mesothelioma of the pleura. Analysis of its immunohistochemical aspects].

To evaluate the usefulness of immunohistochemistry in the diagnostic distinction between pleural mesothelioma and metastatic adenocarcinoma to the pleura, the authors studied formalin-fixed paraffin-embedded tissue sections from 14 pleural mesotheliomas and 20 primary adenocarcinomas of the lung, stomach, ovary and breast by using 16 commercially available antibodies to cytokeratin (KL1), vimentin, EMA, CEA, CA19.9, CA125, Egp 34 (detected by HEA 125), secretory component, S100 protein, SP1-béta 1, Leu M1, alpha-1-AT, alpha-1-ACT, lysozyme, desmin and factor VIII. Keratin positivity was found in all mesotheliomas and adenocarcinomas.

[Blind-pouch syndrome after side-to-side intestinal anastomosis].

Side-to-side anastomosis is a bad technique to restore intestinal continuity. In fact, it leads to the progressive distention of the cul-de-sac, which produces definite pockets of stasis and bacterial infection. Although it is well tolerated by a number of patients, it causes a number of gathered complications in others.