11 結果
Müller cells are principal glial cells in rat retina and have attracted much attention in glaucoma studies. However, it is not clear whether adenosine and adenosine receptor (AR) antagonists play any roles in the regulation of potassium channels in Müller cells and subsequently in the promotion of
OBJECTIVE
Previous studies in the authors' laboratory have shown that bovine and human trabecular meshwork (TM) cells possess a robust sodium-potassium-chloride (Na-K-Cl) cotransport system that functions in regulating intracellular volume and may play a central role in modulating outflow facility
Osmolal, electrolyte, and other responses in peripheral blood were recorded after water loading of patients with ocular hypertension and chronic simple glaucoma, and with a small group of younger normal subjects. The osmolal responses of the ocular hypertensive group were significantly greater than
OBJECTIVE
Glaucoma is characterized by increased intraocular pressure (IOP). The effect of nicorandil and pinacidil on IOP in experimentally induced acute and chronic models of glaucoma and the mechanism of action involved were studied.
METHODS
New Zealand white rabbits were used for the study.
BACKGROUND
Timolol maleate, a nonselective beta-adrenoceptor antagonist applied topically to the eye as a solution, is well known for its ocular hypotensive efficacy. A gellan formulation of timolol maleate is given once daily and has been shown to be as effective as timolol maleate solution, but is
OBJECTIVE
To determine if there were significant differences between the number of red blood cell ouabain binding sites in normals and untreated ocular hypertensives plus one open-angle glaucoma patient.
METHODS
We measured the binding of (3)H ouabain to erythrocyte membranes of 23 normals, 25
In the study two potassium channel activators, cromakalim and nicorandil, were investigated in rabbits using three different levels of intraocular pressures (IOPs), including alpha-chymotrypsin-induced ocular hypertension, hypotension (IOP recovery method) and normal tension. Cromakalim
The purpose of this study is to determine the mechanisms of action involved in the ocular hypertension induced by 4-aminopyridine (4-AP), a voltage-dependent potassium (K+) channel blocker, in rabbits. Topical application of 4-AP elevated intraocular pressure (IOP). This action caused increases in
OBJECTIVE
To describe the occurrence of hypokalemia, metabolic acidosis, and suspected renal tubular acidosis associated with the administration of topical ophthalmic carbonic anhydrase inhibitor (CAI) in a cat.
METHODS
A 2-year-old, 5.3 kg, male, castrated, domestic short-haired cat developed
Intraocular pressure (IOP) lowering drugs that are approved for the treatment of glaucoma and ocular hypertension have limited activity on increasing aqueous humor movement through the trabecular meshwork and Schlemm's canal (TM/SC). The TM/SC complex is considered the conventional outflow pathway
OBJECTIVE
To evaluate by survey the comfort upon instillation of timolol hemihydrate compared to timolol maleate with potassium sorbate.
METHODS
A prospective, multicenter, observational, non-interventional study.
METHODS
One hundred and three patients of open-angle glaucoma or ocular hypertension