4-Benzoyl- and 4-benzyl-1,2,3-triazol-N-acetic acids, in vitro inhibitors of the prostaglandin synthesis

Several 4-benzoyl- and 4-benzyl-1,2,3-triazol-N-acetic derivatives were synthesized and tested. The compounds were prepared by nucleophilic substitution, 1,3-dipolar cycloaddition and usual functional group conversion reactions. Numerous derivatives were evaluated in vitro for their ability to inhibit the prostaglandin synthesis and to displace labelled [14C]indomethacin from bovine vesicular gland microsomes. Some compounds showed biological activity.

[Value of double-contrast arthrography in the verification of meniscal pathology of the knee. Our experience]

The authors face the problem of accuracy, specificity and sensitivity of double-contrast arthrography in meniscal injury of the knee. They report the results obtained in a clinical-statistic and retrospective investigation on 206 patients. The final diagnoses were obtained by arthrotomy (105 cases) by arthroscopy (70 cases) and clinically with a follow-up of 6 months (31 patients). Diagnostic accuracy (94,5%), sensibility (92%), specificity (98,7%) and predictive values on positives (99%) and negatives (87,5%), confirm double-contrast arthrography as a highly accurate examination. A specific diagnosis can be made only when the diagnostic modalities are correctly applied and the arthrographers are qualified.

Electron microscopy applied to fine-needle aspiration. A report of six cases from various sites

The authors report the results obtained from the application of electron microscopy techniques to the cytology of fine-needle-aspirated samples of neoplastic lesions from various body sites. These results show that the tissue structure, which is usually lost during the squashing necessary for light microscopy cytology, is preserved when the samples are processed for ultrastructural analysis. Electron microscopy also allows a highly detailed study of the cell's inner structures. Thus, when this technique is applied, fine needle-aspirated samples can be regarded as actual microbiopsies. However, because of the high cost of ultrastructural techniques, we suggest that actual analysis be performed only in selected cases, whereas fixation and inclusion for electron microscopy could be done routinely.