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Biomedical subjects

B Plouvier

Publications and source records attributed to B Plouvier.

At least 73 records · Page 4Linked to original sources
PubMed1976

[Impact, on blood and tissue lipids, of an artificial lipid emulsion combined with essential amino acids and sorbitol, used in humans in exclusive parenteral feeding].

The effects of a complete parenteral feeding of long duration were studied in patients hospitalized in an Intensive Care Unit for an affection requiring this type of alimentation or presenting a state of irreversible prolonged coma. We used the Trive 1000 (EGIC Laboratories) which is a soya oil emulsion combined with essential amino-acides and with Sorbitol. The caloric intake was completed by glucose-solutes mixed with the indispensable vitamins andoligo-elements. Repeated blood-balances, biopsies of the panniculus adiposus and takings of organs (whenever a death occured) were carried out. The after-effects of this type of alimentation were studied in the blood and in the tissues: 1 = On the level of the lipometabolism, the absence of significant modifications in the different categories of lipids and plasmatic lipoproteins shows the quality of the injected fat elimination. On the tissular level, the collecting of alimentary fats is studied from the point of the lipase - lipoprotein activity and the quantitative and qualitive variations of the main classes of lipids. 2 - On the level of the blood biological constants, certain irregularities were noticed, the meaning of which is being discussed.

Adipose Tissue↗
PubMed1976

[Renal manifestations of Hodgkin's disease].

The occurrence of renal manifestations of Hodgkin's disease may result from multiple physio-pathological processes: mechanical, by obstruction of the vessels or excretory systems of the kidneys; specific, by lymphogranulomatous infiltration of the parenchyma; immunological, as immunune complex glomerulonephritis or, more frequently, as amyloid disease; infective or metabolic as a complication of long term corticosteroid or immunodepressive therapy. These various causes of renal problems during Hodgkin's disease lead to the observation of three principal clinical pictures: acute renal failure, chronic renal failure and permanent proteinuria with or without nephrotic syndrome. Acute renal failure generally results from a severe infection with toxi-infective shock. More rarely it is related to thrombosis of the renal veins, with a grave prognosis, or to unreteral compression with anatomical or functional exclusion of the contralateral kidney. Chronic renal failure may be caused either by distension of the excretory pathways, progressively obstructed or invaded by the Hodgkin's process and requiring specific therapy to relieve the obstruction (cobaltotherapy, chemotherapy), by specific infiltration of the renal parenchyma or by amyloid disease. Permanent proteinuria, with or without nephrotic syndrome, may be the presenting feature of renal vein thrombosis, amyloidosis or paraneoplastic nephrotic syndrome.

Acute Kidney Injury↗
PubMed1976

[Effects of a high dose of vitamin A on experimental immunologic arthritis].

Vitamin A, a good adjuvant to immunologic reactions, has in this aspect an interesting therapeutic effect, especially in immunotherapy. On the other hand, in diseases caused by circulating immunocomplexes or in auto-immune diseases, vitamin A can prolong the pathologic immunologic process. This experimental study shows that vitamin A in high doses has an adjuvant effect, that is aggravating considerably the immunologic arthritis induced in the Wistar rat.

Animals↗
PubMed1975

[Cardiac insufficiency caused by the use of daunorubicin. Clinical and developmental study of 4 recent cases].

Out of a total of 126 patients with acute lymphoblastic leukemia, including 69 children aged less than 15 years, and 57 adults aged less than 60 years, who were treated with daunomycin (D.N.R.) initially and with several courses of reinduction, we noted 4 cases of decompensated heart failure (3.1%). 3 cases occurred in children aged 4, 5 and 5 years, and in the last case, in a young adult, of 19 years. Three of these patients were in complete remission of the blood and were only undergoing courses of reinduction. The 4th was in incomplete remission. When symptoms first occurred, about 2 months after the last injection of D.N.R. the total dose administered varied between 14 and 31 mg/kg, extending over periods of 5 to 16 months (average monthly dose 1.9 to 2.8 mg/kg). Except in one case, the course only mildly influenced by the symptomatic treatment and death occurred in 3 patients within from 15 days to 5 months after the onset of the first symptoms. The last patient is still alive and seems stabilised with a follow up period of 9 months. The responsibility of D.N.R. in the development of this myocarditis appears very likely. The unforeseable character of such complications, which are independent of age, and not necessarily linked to any excessive dosage, should be taken into consideration in the indications for D.N.R. in spite of their relative rarity.

Adult↗
PubMedDate not supplied

Antitumor combilexin. A thiazole-containing analogue of netropsin linked to an acridine chromophore.

We report the synthesis, DNA-binding properties and antitumor activity of ThiaNetGA, a hybrid molecule in which are conjugated a thiazole-lexitropsin and an intercalating anilinoacridine chromophore. This combilexin molecule binds to DNA via a bimodal process involving minor groove binding of the lexitropsin moiety and intercalation of the acridine moiety. The uptake and distribution of the hybrid in L1210 leukemia cells were investigated by ESR spectroscopy using a spin-labeled derivative. The nitroxide-containing conjugate accumulates preferentially in the cell nuclei and rapidly saturates the nuclear receptor sites. Both in vitro and in vivo assays indicate that the drug is practically nontoxic but exhibits moderate antitumor activity against P388 leukemia cells in mice.

Acridines↗
PubMedDate not supplied

[T-lymphocyte diseases. Physiopathological and nosologic concepts (excluding cancer and graft rejection)].

The T-lymphocyte is at the heart of the physiopathological mechanism of most dysimmunity affections. Furthermore, some cases of granulomatosis, the immediate consequence of macrophagic disorder, come within the framework of T-lymphocyte diseases, épicritical centre of the complex process of cellular immunity. By reference to new knowledges about various actions of T-lymphocytes and their interactions with lymphocytes B and macrophages, and by reference to classic pathologic findings of diseases of immunity, the author's propose a new classification of these diseases, suggesting therapeutic reasearch in consideration of effect of drugs, especially immunostimulant treatments, on the immune system.

Antibody Formation↗