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F Buneaux

Publications and source records attributed to F Buneaux.

18 recordsLinked to original sources

[Assay of total mercury in blood, plasma and erythrocytes by emission spectrometry-induced plasma HF (SEPIHF)].

The mercury quantification in blood can be performed by ICPAES after dilution in an ammonia buffer and reduction by sodium borohydride. The proposed method does not need mineralization. The sample is not nebulized in the torch but the mercury vapor, after collection in a reactor vial, is swept into the plasma by the carrier gas (argon) using the described glass apparatus, and quantified at lambda = 253.65 nm.

Erythrocytes

[Treatment of rheumatoid arthritis with zinc sulfate. Results of a doubl-blind trial].

At the end of a double blind clinical test carried out in 35 patients with classical rheumatoid arthritis, or progressive and with certain diagnosis, it does not appear that zinc sulphate given by mouth at dose of 600 mg/24 hours (divided up into 3 doses) may be a valid basic treatment. In fact, none of the classical clinical criteria (Richtie index, Lee index, etc.) nor laboratory criteria (E.S.R.) show any statistically significant change after 4 and 8 months. The discrepancy between these results and those previously published in discussed.

Arthritis, Rheumatoid

[Zinc and enzymes in the synovial fluid and blood in various types of rheumatism].

It appears that in rheumatoid arthritis and, to a lesser extent, in the other forms of inflammatory rheumatism, the level of zinc in the blood serum is lowered, whereas synovial zinc is increased. In the synovial fluid, there is a very significant correlation between enzyme activity and the concentration of zinc. Practical experiments aimed at demonstrating in vitro the action of zinc on lacticodeshydrogenase, acid phosphatase, lysozyme and beta-glucuronidase did not produce the anticipated results and do not explain the metabolic disorders of zinc seen during inflammatory rheumatisms.

Acid Phosphatase

[Automated measurement of elastase activity and elastase inhibitory capacity of serum].

A technic of autoanalysis of the elastase activity and the capacity of elastase inhibition of the serum is described. This estimation depends on the hydrolysis by elastase of N-ter-butoxycarbonyl-L-nitrophenyl ester with liberates p.nitrophenol the colour of which is read at 405 nm. The means of this sample estimation are reported in a few cases of respiratory, dermatological and pancreatic disease.

Animals

[The effect of osmic acid on synovial and serum beta-glucuronidase activity].

The authors report that osmic acid, in vitro, increases the activity of beta-glucuronidase in serum and synovial, ascitic and pleural fluids, whereas five other metals of similar molecular weight (platinum, gold, mercury, thallium and lead) are either inactive or inhibitory. By contrast the osmium diminishes the activity of LDH and acid phosphatases in serum and synovial fluid. This effect on beta-glucuronidase is thought to be due to inhibition of a natural inhibitor present in biological fluids, a protein found by several authors.

Acid Phosphatase

[Several synovial enzymes in rheumatoid arthritis].

The authors show that although the enzyme variations are nil or unimportant in the mechanical joint fluids, they are of some importance in the inflammation fluids, particularly in cases of rheumatoid arthritis. Of those studied so far, the variations are most notable in the dehydrogenases and the phosphatases, the variations being highly significant and related to one another and to the sedimentation rate.

Acid Phosphatase

[Chrysotherapy].

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Animals

Continuous flow quantification of total mercury in whole blood, plasma, erythrocytes, and urine by inductively coupled plasma atomic emission spectroscopy.

Mercury determination in blood and urine can be performed by inductively coupled plasma atomic emission spectroscopy (ICPAES) after dilution in an ammonia buffer and reduction by sodium borohydride. The proposed method does not need an oxidative mineralization. The sample is not nebulized into the torch, but the mercury vapor, after collection in a reactor vial, is swept into the plasma by the argon carrier gas using the described glass apparatus.

Erythrocytes

[Role of the laboratory in the diagnosis and treatment of lead poisoning].

A case of therapeutic lead poisoning in a six-week old child is reported, this aetiology being very common in paediatrics. The role of the laboratory in treatment is described, the latter having involved the addition of disodium calcitetracemate to the peritoneal dialysis fluid.

Aminolevulinic Acid