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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Effect of latanoprost on regional blood flow and capillary permeability in the monkey eye.

OBJECTIVE: To evaluate the effects of latanoprost on regional blood flow and capillary permeability in the monkey eye. METHODS: Anesthetized cynomolgus monkeys were unilaterally treated with a single dose containing 6 pg of latanoprost; or 10 microg of PhXA34 (13,14-dihydro-15R, S-17-phenyl-18,19,20-trinor-prostaglandin F2alpha [PGF2alpha]-isopropyl ester), which contains about 50% latanoprost. Regional blood flow in the eye was measured with radioactively labeled microspheres; capillary permeability was measured by determining the extravascular plasma-equivalent albumin space using 125I-albumin, 131I-albumin, and 51Cr-labeled erythrocytes. RESULTS: Latanoprost or PhXA34 had no or only a slight effect on the regional blood flow when measured 1, 2 1/2, 3, 4 1/2, and 6 hours after dose administration, with the exception of the anterior sclera, in which a moderate increase in blood flow was detected. No effect on capillary permeability to albumin was detected when studied 30 minutes to 2 1/2 hours and 5 to 6 hours after dose administration. CONCLUSION: Latanoprost, a selective prostaglandin F receptor agonist, exerted no or only slight vascular effects for up to 6 hours after dose administration in the monkey eye, with the exception of the anterior sclera, in which a moderate increase in blood flow was detected. CLINICAL RELEVANCE: Naturally occurring prostaglandins may cause marked microcirculatory changes in the eye that could be of clinical concern. Latanoprost, a selective prostaglandin F receptor agonist, seems to be devoid of such effects.[1]

References

  1. Effect of latanoprost on regional blood flow and capillary permeability in the monkey eye. Stjernschantz, J., Selén, G., Astin, M., Karlsson, M., Resul, B. Arch. Ophthalmol. (1999) [Pubmed]
 
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