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Biomedical subjects

J Foussereau

Publications and source records attributed to J Foussereau.

At least 91 records · Page 5Linked to original sources
PubMed1977

[Has N-isopropyl-N'-phenylparaphenylenediamine a place among standard allergens? Importance of this allergen in rubber intolerance].

Allergic contact dermatitis to N-isopropyl-N'-phenylparaphenylenediamine (IPPD) from rubber is far from being exceptional. Out of a total of 56 cases of allergic contact dermatitis to IPPD, 42 were considered as caused by occupational contacts: 17 cases were found in tyre manufacturers, 9 in car-mechanics, 9 in drivers, and 7 in various industrial branches. Out of the 56 cases, 23 also reacted allergically to mercaptobenzothiazole or to tetramethylthiuramdisulphide, or to both of these substances. In a chromatographic analysis of samples of 9 different tyre brands, IPPD was found in 8 cases.

Allergens↗
PubMed1977

[Allergic eczema due to textile pigment-supports].

A worker employed in a textile printing-shop showing a rebellious eczema on hands and forearms, was submitted to three series of patch-tests which disclosed a polysensitization to chromium, to formaldehyde, to the urea-formaldehyde resin and to some pigments (Helizarine BASF, Fluolac FMC). The chemical analysis of some of these pigments shows an interesting relation between allergenicity for a certain pigment and the presence of formaldehyde. Thus, it is an allergy to the pigment-support and not to the pigment itself.

Coloring Agents↗
PubMed1976

Irritant dermatitis from diallylglycol carbonate monomer in the optical industry: clinical and experimental studies of cutaneous tolerance and chemical investigations.

The diallylglycol carbonate monomer causes dermatitis due to irritation in the optical industry. Cutaneous intolerance may effect as many as 70% of the exposed persons employed. Almost all control subjects who where patch-tested showed irritation at a 2% concentration. The histological effects were an acute oedema with inflammation of the papillary dermis, and diapedesis of neutrophil polymorphonuclear leukocytes. Experiments on animals confirmed the irritant nature of the product; in the rabbit, a single application produced irritation, but to a lesser degree than in humans. Tests for possible sensitizing effects in the guinea pig have given negative results. Chemical analysis of the monomer revealed the presence of diallyl carbonate and acrolein. Allyl alcohol was detected in only one case. Patch tests were carried out in a group of control subjects with acrolein, diallyl carbonate and allyl alcohol. The histological appearance of the lesions caused by acrolein was quite different from that due to diallyglycol carbonate. It is probable that the irritant is the diallylglycol carbonate monomer itself.

Animals↗
PubMed1976

Occupational eczema from para-tertiary-butylphenol formaldehyde resins: a review of the sensitizing resins.

The first case of allergy due to para-tertiary-butylphenol formaldehyde resins (PTBP resins) were found in 1958 in the shoe-making industry. These resins are found in certain neoprene adhesives. PTBP resin hypersensitivity may be due either to the para-tertiary-butylphenol, to the resin itself or less frequently to the formaldehyde. These resins may cause occupational allergy (in the automobile industry and chiefly in the shoe-making industry) and non-occupational allergy (footwear and clothing hypersensitivity). Patients allergic to PTBP resins have been found to show a cross-reaction to other resins such as Alresen PA 103, Schenectady SP 126 and Schenectady SP 154. The authors give a reference list of sensitizing neoprene adhesives and PTBP resins so that manufacturers can limit the use of these products as far as possible.

Dermatitis, Occupational↗
PubMed1975

Value of a new technique of sensitization to dinitro-2, 4-chlorobenzene.

Experimental sensitization to dinitro-2,4-chlorobenzene (DNCB) is being studied according to different techniques, the variable factors being the concentrations of DNCB, the number of applications and the time between the sensitizing application and the reading of the challenge test. The authors relate and discuss their technique (only one touch of a drop of 10% DNCB in acetone, covered with a cover-slip and left to evaporate), the results and the advantages: in particular, stanardization of the parameters of sensitization, (quantity of DNCB, area and time of application) and reduction in the risk of toxic effects inherent in excessively high concentrations of DNCB. In addition, the authors emphasize the fundamental significance of the length of time needed to acquire experimental sensitization.

Adult↗
PubMed1975

Contact allergy to Frullania and Laurus Nobilis: cross-sensitization and chemical structure of the allergens.

Cross-sensitization between two plant allergens, Frullania and Laurus Nobilis (L.), has been demonstrated in Strabourg. A review of the haptens isolated from Frullania outlines the importance of the purification of allergen to ascertain the nature of the causative agent. New results on laurel oil point to the possibility of a common denominator (the a-methylene gamga-butyrolactone moiety) between this plant and Frullania; former results are re-interpreted and analyzed. In conclusion, the importance of physico-chemical methods used to purify and isolate haptens, and help in their definition, is stressed.

4-Butyrolactone↗