Biomedical subjects
Publications and source records attributed to C Ruesch.
We report nine cases of elderly French patients (more than 65 years old) with bronchial tuberculosis. We report the clinical features, radiological and endoscopic aspects. The symptoms are non specific and may delay the diagnostic. The chest X-ray and endoscopic aspects are tumor like. Retractile bronchial stenosis is a potential evolution.
We have examined the effect of various natural and synthetic tachykinins on the steady state Ca(++)-rise ([Ca++]i) in transfected chinese hamster ovary cells expressing recombinant human Neurokinin 2 (NK2) receptors. The rank order of potency with natural tachykinins was NeurokininA > Neurokinin B > Eledoisin > Physaelamin > substance P. The selective NK2 agonist, [beta-Ala8]NKA(4-10) was very potent, with an EC50 value of 4.83 x 10(-9) M whereas Senktide, MePhe7NKB and Sar9, (MetO2)11 substance P, selective NK3 and NK1 agonists, respectively, did not have any effect on [Ca++]i in hrNK2CHO cells, suggesting a selective and preferential recognition and activation of NK2 receptors in these cells. (+/-) SR 48968, a selective NK2 antagonist, abolished the beta-AlaNKA-induced [Ca++]i with an IC50 value of 0.7 nM. Two other peptidic NK2 antagonists, MEN 10376 and L-658977, were less active with IC50 values of 49 nM and 5.29 microM, respectively. In contrast, (+/-) CP-96,345 and (+/-)CP-99,994 and RP 67580, all selective NK1 antagonists, did not have any effect on the beta-AlaNKA-induced [Ca++]i in hrNK2CHO cells (+/-) SR 140333, a potent and selective NK1 antagonist, had a 35% inhibition under similar conditions. These data demonstrate a high selectivity and sensitivity to NK2 receptor mediated [Ca++]i in rhNK2R-CHO cells and may be of value as a rapid, selective test of drug action at the human NK2 receptors in vitro.
Pulmonary endometriosis has been described as occurring in two forms: --bronchopulmonary with haemoptysis at the periods, --pleuropulmonary with pneumothorax at the periods. In 30-40% of cases it is associated with pelvic endometriosis. The pathways along which it can be disseminated are: --transdiaphragmatic peritoneal migration, --or metastatic migration through the veins and lymphatics. The treatment at present consists of hormone therapy together with surgery.
We report the case of a 65 years old woman treated for 20 months with Amiodarone for angina who presented a picture of diffuse interstitial pneumonitis of rapid onset and of marked severity, which totally resolved once the drug was suspended and following the administration of steroid therapy. This raises the problem of the responsibility of Amiodarone in the aetiology of diffuse interstitial pneumonitis. We present 12 cases from the literature which also raise the question of the responsibility of this drug.
The authors report a case of bilateral hilar lymphoma of sarcoid origin associated with a pleural effusion. With the exception of pneumothorax, the pleural manifestations in the course of sarcoidosis amount to 115 published cases, including 49 with histopathological proof enabling us to speak of a pleural sarcoidosis. When the histopathological diagnosis is missing, it is preferable to speak of sarcoidotic pleurisy: the aetiopathogenesis in this case is venous obstruction and/or lymphatic obstruction by sarcoid involved lymph nodes. Exceptionally, it could be due to heart failure due to the fibrotic stage of sarcoidosis or to an autonomous sarcoidotic myocarditis.