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At least 19 recordsLinked to original sources
PubMed1992

Analysis of IL-6 levels in human vitreous fluid obtained from uveitis patients, patients with proliferative intraocular disorders and eye bank eyes.

Several studies suggest a role for IL-6 in the pathogenesis of uveitis. Earlier we have shown that aqueous humour obtained from patients with uveitis contained raised levels of IL-6. In the study described here we investigated the IL-6 levels in vitreous fluid samples obtained from 75 uveitis patients with different uveitis entities. Vitreous samples from 14 patients with proliferative intraocular disorders (PID) and 29 eye bank eyes were used as controls. All the samples were tested in the IL-6 B9 bioassay as well as in a sensitive ELISA for IL-6. Raised IL-6 levels were detected in the vitreous fluid of uveitis patients as well as patients with PID, implicating IL-6 as a common inflammatory mediator. The highest mean level of IL-6 was found in the vitreous fluid of patients with acute retinal necrosis. The mean IL-6 levels measured by the ELISA were higher compared to the levels measured by the B9 bioassay. This may be caused by the presence of B9 bioassay inhibitory factors in the vitreous fluid of these patients.

Biological Assay↗
PubMedDate not supplied

Eye banking in America.

In 1961, the Eye Bank Association of America (EBAA) was developed to promote universal standards for the procurement of eye tissue. Over the last 30 years, the EBAA has had to change its original guidelines to include medical standards, technical personnel, updates in serology testing, and public relations. Certified technicians are required to perform procurement after careful donor chart review, where they must also review the lab results and check the postmortem blood sample to see if it tested positive for the human immunodeficiency virus.

Corneal Transplantation↗
PubMed1992

[The fate of corneal transplants from the Zurich eye bank].

In a retrospective study, we investigated the survival of transplanted corneal material, which had been sent between 1988 and 1989 from the Zurich Eye Bank to both domestic and foreign physicians and clinics. A questionnaire was used to determine diagnosis, transplant survival, cause of any opacification, the occurrence of problems of epithelialisation, loosening of sutures, as well as vascularization of the host cornea. Of a total of 416 corneas, 327 or 79% could be evaluated. The mean follow-up periods of the various diagnostic groups ranged from 11 to 20 months, with a range of 1 to 35 months. After 18 months, the rate of clear transplants was 96% in the keratokonus group. This rate was significantly better than that of the bullous keratopathy group (77%, p less than 0.013) or that of all other diagnosis groups (72%, p less than 0.001). The difference to the 81% survival rate of the group with Fuchs' endothelial dystrophy was not significant. The most frequent cause of transplant opacification was primary transplant failure. Analysis of possible risk factors further confirmed that transplant opacification occurs more frequent in the presence of vascularization of the host cornea.

Adolescent↗