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Biomedical subjects

S B Goren

Publications and source records attributed to S B Goren.

13 recordsLinked to original sources

Diagnostic tests in patients with symptoms of keratoconjunctivitis sicca.

We compared the relative value of the tear film breakup time, Schirmer test, lactoferrin immunologic assay and rose bengal staining in 156 patients with varying severity of symptoms characteristic of keratoconjunctivitis sicca and in 39 controls. Statistical analysis showed that in patients with minimal ocular irritation the Schirmer test in combination with the lactoferrin immunologic assay provided an optimal balance between high test sensitivity and low false-positive rates. In patients with moderate to severe ocular burning, foreign body sensation, or pain but with no systemic symptoms of dry mouth or arthritis, and in patients with both ocular and systemic complaints, the lactoferrin assay alone provided statistically significant results. Tear film breakup time and staining with rose bengal were not useful and the Schirmer test had limited value in measuring the rate of tear secretion in these patients.

Adult↗

The inhibition of corneal vascularization with aortic extracts in rabbits.

A low molecular weight fraction of bovine aortic extract inhibited corneal vascularization and edema in rabbits when administered either subconjunctivally or topically as long as 48 hours after injury. The extract also appeared to enhance the regression of newly formed corneal vessels. Topical administration for as long as two months had no deleterious ocular side effects. Tissue culture experiments showed that analagous fractions prepared from bovine vitreous inhibit endothelial cell growth. The major growth inhibitor of corneal neovascularization was not the Kunitz bovine protease inhibitor.

Animals↗

The inhibition of corneal vascularization in rabbits.

A single subconjunctival injection of 250 microgram of a partially purified extract of bovine aorta, administered immediately before or after silver nitrate injury to the cornea, markedly inhibited corneal vascularization in the rabbit eye. We believe the active molecule is a protease inhibitor that prevents the potential source of new vessels from proliferating and invading the diseased cornea.

Animals↗

Cataract associated with long-term facial paralysis.

Of 29 patients with postoperative acoustic neuroma, five patients with facial paralysis developed unilateral lens opacities of unknown etiology on the paralyzed side, one to six years after surgery. The corneas were well maintained in all patients by means of either eyelid surgery or flush-fitting scleral contact shells. Four patients had anterior subcapsular opacities and in one patient a mature cataract developed. Thus, cataracts may be associated with long-term facial paralysis.

Aged↗

The red eye.

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Acute Disease↗