PubMed Health⌕ Search

Biomedical subjects

G Payeur

Publications and source records attributed to G Payeur.

At least 19 recordsLinked to original sources
PubMed1988

[Diagnosis of ocular toxoplasmosis by the ELISA method applied to the determination of immunoglobulins of the aqueous humor].

The toxoplasmosic origin of focal chorioretinitis can be detected on the basis of certain clinical signs in the fundus. However, this must be biologically confirmed by studying the local production of specific antibodies. For that purpose, the rate of intraocular specific Immunoglobulins is compared to the serum rate. The ELISA method is well adapted to quantitative determination of microamounts in aqueous humors. The authors report a study of 103 patients of whom, 28 were suffering from uveitis, and have studied the correlation between clinical lesions and results of the ELISA test. There was no false positive in the first group reference series, and in the positive cases there was a very high correlation with the clinical indicators.

Adolescent↗
PubMed1984

[Gyrate atrophy of the choroid and retina in children. Apropos of 2 cases].

The authors report two familial cases of algerian children with a hyperornithinaemia and a gyrate atrophy. Blood ornithine was 10 to 20 above the normal, lysine and glutamic acid were slightly decreased. Urinary ornithine levels were very high. The enzymatic activity of the ornithine keto-acid transaminase was not detectable in the patients skin fibroblasts. It was more than half the normal value in the children's mother. Owing to a better knowledge of the biochemical abnormalities a poor protein, poor arginine and more recently proline added diet has been recommended in order to alter the development of ocular lesions. Unfortunately the authors did not have the opportunity of following the children long enough to assess the result of this treatment.

Algeria↗
PubMed1983

[Congenital malformation of the pigment epithelium and retina].

A case of congenital malformation of the retina and of the pigment epithelium is reported, the lesion presenting as a slightly elevated greenish-blue lesion in the macular area or retinal periphery. The outer portion was hyperpigmented, the nonpigmented inner portion consisting of malformed thickened retina. Marked vascular tortuosity resulted from disturbance of the retinal layers and the presence of preretinal membrane. The lesion was detected in a boy with strabismus, loss of visual acuity and hyperopia, and is often misdiagnosed as tumor.

Child↗