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Biomedical subjects

J M Husson

Publications and source records attributed to J M Husson.

6 recordsLinked to original sources

[Does the hepatitis of secondary syphilis exist? Two cases (author's transl)].

Two patients are presented as new cases of secondary syphilitic hepatitis. The closely resemble descriptions in the literature with the same clinical and laboratory "profile" and the same course spectaculary influenced by anti-syphilitic penicillin therapy. The presence of treponemes in the liver, which would definitely confirm the diagnosis, was not demonstrated. This is a particularly important diagnosis, which should not be missed since it leads to treatment of fundamental importance to the patient's future.

Adult

A radioreceptor assay for benzodiazepines.

A simple, rapid and sensitive radioreceptor assay for determining benzodiazepines in serum is based on the displacement by the drug of specific [3H]diazepam binding to a membrane fraction from rat brain. The limit of detection of the more active benzodiazepines is about 0.5 ng. Diazepam, nitrazepam, clobazam and HR 458 have been assayed in human serum after a single oral clinical dose. The results can be used for determining pharmacokinetic parameters. The technique measures not only the parent benzodiazepine but also clinically active metabolites.

Animals

Hepatocyte giant mitochondria: an almost constant lesion in systemic scleroderma.

Liver electron microscopic studies were performed in 14 patients with systemic scleroderma. In 13 of these patients, giant mitochondria were demonstrated in the hepatocytes. This ultrastructal abnormality was present whatever the type and duration of the disease and was also present even when the liver was histologically normal. The mechanism of formation of giant mitochondria in systemic scleroderma is unknown.

Adult

Immunochemical study on serum proteins in systemic sclerosis.

Forty one patients with systemic sclerosis were studied after separation into three groups according to Barnett's classification. A multi-dimensional statistical analysis eight serum proteins revealed a difference between control patients and patients with type I and type II scleroderma. Type I scleroderma was characterised by a rise in alpha 2 macroglobulin and in the C4 fraction of complement, whilst in type II scleroderma all the proteins studied were raised, with the exception of CO complement, which was normal, and transferrin which was markedly decreased.

Blood Proteins

Hormonal and metabolic effects of somatostatin in diabetic patients submitted to an i.v. arginine infusion.

Hormonal and metabolic effects of a synthetic linear somatostatin were tested in insulin-dependent subjects submitted to an intravenous arginine infusion. Arginine alone induced a rise in plasma growth hormone (HGH) and glucagon (IRG) concentrations but did not affect the spontaneous diurnal decrease of plasma cortisol; blood glucose concentration rose while that of alanine decreased suggesting enhanced gluconeogenesis; concentrations of plasma free fatty acids (FFA) and 3-hydroxybutyrate decreased. Somatostatin, at three different dosages, markedly influenced these patterns: HGH response to arginine was suppressed by the lowest somatostatin dose; IRG response was progressively inhibited by increasing doses of somatostatin but never reached zero; cortisol level was not decreased but slightly increased by somatostatin. Substrate responses to arginine were also modified by somatostatin: alanine disappearance was impaired, this effect being dose-related; plasma FFA and 3-hydroxybutyrate concentrations showed a significant increase rather than decrease, consistent with somatostatin suppression of residual insulin secretion. Tolerance to somatostatin was good and no alteration of hemostasis was observed.

Adult

[Encapsulating peri-hepatitis. Apropos of 4 cases].

The authors report 4 cases of encapsulating peri-hepatitis, including an angiographic study. Selective arteriography of the coeliac trunk showed extremely sinuous intra-hepatic arteries in 3 of these cases, and obstruction of the portal vein, in one case. Catheterisation of the hepatic veins showed a pressure gradient between the obstructed hepatic vein and the free supra-hepatic pressure, showing a post-sinusoidal block. In 2 of the 4 cases, ascites was chylous. Lymphography carried out via lymphatics in the foot was negative in 3 cases where it was carried out. One case showed, on two successive laparoscopies, that micro-nodular cirrhosis was present before the development of encapsulating peri-hepatitis.

Adult