Spontaneous ophthalmic lesions in young Swiss mice.

Background And Purpose: Outbred mice are frequently used in toxicity evaluation. Due to their small size, ophthalmologic examination of such animals is difficult with regard to restraint and use of instruments designed for human medicine. The clinical appearance and incidence of spontaneous ophthalmic lesions should be helpful in selecting mice for toxicity studies and allow distinction between intercurrent spontaneous ocular changes and those attributable to drugs or chemicals.

Dorzolamide, a 40-year wait. From an oral to a topical carbonic anhydrase inhibitor for the treatment of glaucoma.

Dorzolamide, on the basis of its pharmacological profile and lack of undesirable side effects in safety assessment studies together with the fact that it could be formulated in solution at 2%, underwent extensive clinical studies. Early clinical studies in the development of dorzolamide have been described elsewhere (Maren, 1995; Serle and Podos, 1995). In a 1-year study in which a comparison was undertaken in patients for intraocular pressure lowering effects between 2% dorzolamide administered three times daily, 0.

Lipidosis induced in the dog gallbladder by a direct 5-lipoxygenase inhibitor.

The direct 5-lipoxygenase inhibitor L-739,010 was administered at a dose of 60 mg/kg/day per os to beagle dogs for 15 days. Histopathological examination of gallbladders from treated dogs showed epithelial vacuolation and submucosal infiltration by foamy macrophages that were positive for lipids in Sudan Black-and/or Oil Red O-stained sections. Scanning electron microscopic examination of gallbladder mucosa showed thickening of epithelial folds and multifocal epithelial membrane disruptions.