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Biomedical subjects

G Gay

Publications and source records attributed to G Gay.

At least 109 records · Page 6Linked to original sources
PubMed1976

[Pulmonary metastasis from Vater's ampullomas].

The authors report two cases of carcinoma of the ampulla of Vater with numerous pulmonary metastases. This carcinoma is a malignant tumour with a very poor short-term prognosis. This tumour develops at the expense of the ampulla of Vater and may give rise to numerous pulmonary metastases and carcinomato,s lymphangitis. Authors are not unanimous concerning the course and prognosis of these tumours. In fact, one may note two tendencies, one optimistic, which seems to us erroneous, the other pessimistic, which we share.

Adenocarcinoma↗
PubMed1976

[Desquamative interstitial pneumonia (apropos of one case)].

Suspected to be a syndrome rather than an authentic clinical entity, the "desquamative interstitial pneumonia" (DIP) exhibits typical anatomo-pathological aspects of intra-alveolar proliferation of granular pneumocytes, type II pneumocytes, leaving the alveolar interstitium unaffected. In absence of superinfection, it remains almost free of fibrous or inflammatory manifestations. The association of DIP to 4 other fundamental histological varieties of diseases of the pulmonary interstitium (UIP, BIP, LIP, GIP) is at the origin of Liebow's classification. The clinical individualization of these entities is still questioned.

Adrenal Cortex Hormones↗
PubMed1975

[Comparison of blood sugar measured by Hoffman's, glucose oxidase and dextrostix technics during the oral glucose tolerance test].

The venous blood sugar has been measured in 384 adult subjects, between 20 and 60 years if agem during two oral glocose tolerance tests, with three methods: Hoffman's method, Glucose-oxidase method, and assay with reflectance meter (DRM). A good correlation was found with all methods (erg = 0,6 at 60 mn after load); however, the results given by the DRM were lower. So, in spite of its practical and economical advantages, the DRM can neverbe used for the diagnosis of an anomaly in the OGTT results. This method is a good one in emergency situations and in mass screening for diabetes.

Adult↗
PubMedDate not supplied

[Familial hypobetalipoproteinemia. Familial study of 4 cases].

A familial study of four cases with hypobetalipoproteinemia is reported. Three members are heterozygous and one is homozygous. This congenital fat malabsorption in homozygous state is commonly associated with an absence of serum apoprotein B and LDL. Neuromuscular and ophthalmological signs are absent in this case. The major role of upper digestive endoscopy in the diagnostic procedure is emphasized. Histochemical and immunoenzymatic stains of enterocytes and intestinal organ culture show defective synthesis apo B in the homozygous patient. Studies of DNA polymorphism in the homozygous patient have shown that the apo B gene doesn't certain major insertions or deletions. These results are discussed.

Adult↗
PubMedDate not supplied

[Amiodarone-induced hepatitis: biological, histological diagnosis, development and role of associated factors. Review of the literature. Report of 2 cases].

Two cases of pseudo-alcoholic amiodarone-induced hepatitis are reported. The authors mention the different clinical forms of the disease and describe its clinical, biochemical and histological features. They stress the unpredictable and discordant character of its course and the influence of associated pathological factors. The role played by Ito's cells in the genesis of the liver fibrosis observed in amiodarone toxicity is discussed.

Amiodarone↗
PubMedDate not supplied

Estrogen and progesterone receptors of human endometrial cells in vivo and in vitro: comparative results of radiochemical and histochemical assays.

Oncopathologists have been developing histochemical methods of sex steroid receptor determination, essential in therapy selection in breast cancer, based on the binding of labeled hormone to receptor. We have applied the fluorescent hormones available commercially from Lee to endometrium. Our purpose was to compare biochemical and histochemical results, both in fresh tissue and in endometrial tissue cultures. We wished to examine the ability of the technique to determine subcellular localization of hormone binding and to trace the hormone-receptor pathway to the chromatin. Eleven fresh normal endometrial specimens, in culture for 3 months, were used for the determination of receptors. As a control we also used cells from 4 human carcinoma cell lines. In fresh tissue, histological patterns were similar to those described in breast cancer but there was little correlation with radiochemical values. In cultured cells also, there was no similarity between the two techniques. Morphologically the labeled hormone was unable to enter the living cell. After fixation it never got through the nuclear membranes. Moreover, the fluorescent cytoplasmic feature was fibrillar and reticular, which could evoke a non specific fixation on the cytoskeleton. We concluded that this molecule is not useful for subcellular localization of hormone-receptor complexes.

Adenocarcinoma↗