Search PubMed⌕ Search

Biomedical subjects

P Joly

Publications and source records attributed to P Joly.

At least 253 records · Page 14Linked to original sources

A simple indirect immunofluorescence micromethod for cell typing.

We describe a simple indirect immunofluorescence micromethod for cell typing. Cells are layered on 18-well immunofluorescence slides coated with high polymer poly-L-lysine. Expressed cell surface membrane markers are detected by indirect immunofluorescence using monoclonal antibodies and the cells are stained with Evans blue dye to permit easy morphological identification under fluorescence and light microscopy. We compared this method with a conventional method for lymphocyte typing in 16 blood samples and 10 bronchoalveolar lavage samples. The results of the two methods did not differ and correlated closely (r = 0.988 for blood samples; r = 0.995 for bronchoalveolar lavage samples). The principal advantages of this micromethod are: the small amounts of cells (10(4) cells) and reagents needed, the ease with which numerous antibodies can be tested and the convenience offered by fixation and staining of cell preparations for reading.

Animals↗

[Delayed clinical course of right ventricular infarction. Importance of changed diastolic function].

This observation illustrates once more the possibility of a delayed appearance of clinical manifestations of the infarction of the right ventricle. Morphological analysis during the catheterization provides a means for a detailed presentation of the adiastolic syndrome, stressing the importance of diastolic function of the right ventricle, especially the role of pericardium. The role of pericardial compliance seems to be brought into play by the acute dilatation of the right ventricle during its necrosis consecutive to the thrombosis of the right coronary artery at its genu superius.

Angiocardiography↗

[Septic arthritis caused by Campylobacter fetus].

The ten published cases of septic arthritis due to Campylobacter fetus and two more recent cases, one of which was a delayed septic complication of a total hip replacement, are discussed. In 83% of cases, febrile monoarthritis occurred which in 7 out of the 12 cases involved an already diseased joint in a subject over 70 years of age (half of the patients), who was frequently alcoholic and presented either cancer or hepatic cirrhosis and/or diabetes. Hyperleukocytosis of the blood was variable (55% of cases). The joint fluid, which contained a high level of deteriorated polynuclear cells, was routinely cultured on an enriched medium in an anaerobic or microerophilic atmosphere and in 10 out of 12 cases Campylobacter fetus was isolated within 15 days, even in the absence of previous antibiotic therapy. The arthritis, which showed little sign radiographically of destructiveness, was cured, leaving no sequellae in most cases. Treatment usually involved ampicillin or the tetracyclines, either alone or in association with the aminoglycosides.

Aged↗

Reproducibility of skin tests. A comparative study of the Pepys prick test and the Morrow-Brown needle and their correlation with the serum IgE level.

Fifty patients allergic to mite were tested for D. pteronyssinus using two prick-test techniques; the classical method by Pepys and the Morrow-Brown needle. Each patient received six tests with each method on the two forearms. The evaluation of the weal areas was conducted in two ways: by weighing the shapes of the tests transferred on to paper, and by measuring the two greatest diameter lengths. No significant difference was observed between the two methods. No significant difference was observed between the measurements of the same tests carried out at 2-monthly intervals by the same examiner. With the Pepys method the weal area sizes are significantly larger than with the Morrow-Brown needle, and the variance is much greater with the Pepys technique. However, the coefficients of variation are similar and in both cases the techniques are equally reproducible. No significant difference was found in the weal sizes with regard to the injection sites on the forearm with either of the two methods. The correlation between the weal area sizes and the log of the IgE levels is closer with the Morrow-Brown needle.

Allergens↗

[A case of an adult triatrial heart, associated with partial abnormal venous return from the left lung].

The authors underline the value of echocardiography in the diagnosis and postoperative management of a case of cor triatrium. The patient was a 22 year old male who presented with dyspnoea of effort (stage III of the NYHA classification) and clinical signs of an infundibulo-pulmonary syndrome with tricuspid regurgitation. Chest X-ray revealed cardiomegaly (CTI = 61%) and filling-in of the aorto-pulmonary window. The electrocardiogram showed left atrial and right ventricular hypertrophy. The echocardiogram, the key to diagnosis, showed an abnormal echogenic structure within the left atrium. Cardiac catheterisation demonstrated pulmonary hypertension and a difference of pressure between the two lungs. The membrane dividing the left atrium and partial anomalous pulmonary venous drainage from the left lung into the superior vena cava were visualised on late stage pulmonary angiography. Surgical excision of the membrane in the left atrium and ligation of the anomalous venous drainage provided a radical cure to all these malformations.

Adult↗