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Biomedical subjects

P Laugier

Publications and source records attributed to P Laugier.

At least 91 records · Page 5Linked to original sources
PubMed1981

[Chronic erythematous oedema of the upper face (Degos). Morbihan disease (author's transl)].

We studied 5 patients presenting with erythematous superior oedema of the face and with oedema of the eyelids. The first case, described by Degos 20 years ago, is reviewed. The first of our 5 patients had clinical lesions similar to those of Degos' case, with true pachydermal features of the integument. In all cases the clinical features are typical but the histology was not characteristic: epidermal atrophy, elastosis, discrete lymphocytic infiltrates. The diagnoses of LE, rosacea, sarcoidosis were excluded. No medication appears to be effective except thalidomide provided that it is given early enough. This disease ought to be recognized as a distinct clinical entity.

Edema↗
PubMed1980

[Keratinization of the senile epidermis (author's transl)].

The ultrastructural study of the senile epidermis without an apparent lesion, in the phase of cicatrization of a traumatic lesion and in a state of hyperkeratosic transformation in comparison with those performed in the normal epidermis, reveals decrease in the number of clear keratinocytes (only compensated in the process of cicatrization) it is in concord with the most recent theory of the aging of cells of Gelfant and Smith. The increase of clear suprabasal cells in the epidermis degenerative process with a constant of the percentage of clear and dark basal cells suggest a liberation of bloqued cells, which constituted probably the direct source of neoplasic differentiation.

Aged↗
PubMed1980

[Alopecia].

Explore the source record for details and available documents.

Adult↗
PubMed1979

[Cowden's disease. A report on two cases in Swiss families (author's transl)].

Described by Lloyd and Dennis in 1963, Cowden's disease is a familial affection in which are found associated lesions of the buccopharyngeal mucosa (papillomatosis, papules, scrotal tongue), various types of skin lesions (verruciform keratotic papules, papilloma, lipoma, angioma, etc...), visceral manifestations usually related to lesions in the thyroid, breasts, or digestive tract (hamartoma or malignant tumors), and skeletal dysmorphism. The two patients were from different families, were aged 65 and 28 years, and had presented for consultation because of buccal mucous membrane papillomatosis, and in one case, hemorrhagic gingivitis. Cowden's disease was diagnosed from the clinical examination, past history, and investigations after hospital admission. The main value of the mucosal and cutaneous lesions is their diagnostic significance, enabling a synthesis of the multiple dispersed manifestations to be made, and a possible visceral tumor to be discovered in the early stages.

Adult↗
PubMed1979

[Guinea pig nipple as a model for the investigation of melasma (author's transl)].

The nipples of male tan guinea pigs were used to test the effects on the skin of oral contraceptive pills and drugs. The daily topically applied doses were 1/2,000 of a pill. After 3 weeks, the nipples treated with solutions of ethinyloestradiol-containing pills had grown (200-300%), the epidermis showed acanthosis (150-250%) and strong hyperpigmentation. Mestranol-containing pills as well as pure progestogen substances did not produce these effects.

Animals↗
PubMed1979

[Cowden disease: report of 8 cases in 2 families (author's transl)].

These 8 cases of multiple hamartoma syndrome are the first reported in Switzerland. Two men aged respectively of 65 and 28 years presented a cobblestone appearance of the gingiva and of the tongue ("pebbly tongue"), which suggested Cowden disease. This diagnosis was confirmed by the discovery of numberous skin lesions, a thyroid goiter, gastrointestinal polyposis, and a mild skelettal dysmorphosis. The older patient had a grade one carcinoma of the bladder; his son and his daughter presented the syndrome, which was also discovered in the family of the second patient (his father, his brother, his sister and one of her daughters). The ultrastructural study of two skin biopsies demonstrated anomalies of the fibroblasts and collagen fibers.

Adolescent↗
PubMed1979

[Ultrastructural study of Mibelli's porokeratosis. Pathogenic and therapeutic considerations in three cases].

Report of three cases of porokeratosis Mibelli with emphasis on the ultrastructural changes of the entire epidermis underlying the cornoid lamella: autophagocytosis, filamentous degeneration, formation of "corps ronds". These phenomena are correlated with those of apoptosis (or intraepidermal cellular death with filamentous degeneration). Its role in the genesis of the cornoid lamella and in the degeneration of the lesions is discussed. In conclusion, on the basis of the reported observations and of the studies showing the action of retinoic acid and its derivatives on precancerous lesions, the authors propose to treat the actinic disseminated form of porokeratosis Mibelli with the aromatic derivative of retinoic acid (RO 10 9359).

Epidermis↗