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We report on a quantitative analysis of cone and rod photoreceptors in hamster retina. Cone and rod photoreceptors
were counted in retinal whole mounts using differential interference contrast (DIC) optics microscopy after staining of
cone photoreceptors were stained with peroxidase-labeled peanut lectin. Middle-to-long-wave-sensitive-(M/L-), and shortwave-
sensitive-(S-) cone opsins were visualized by observed using confocal microscope after immunocytochemical procedure.
The average cone density was 9,307 cells/mm2, giving a total of cones of 293,060 cone cells per retina. The peak
density of cone cells (12,857 cells/mm2) was found 0.3 mm from the optic disk (OD) of the nasal retina. The average rod
density was 300,082 cells/mm2, giving a total number of rods of 9,448,150 cells. The peak density of rod cells was found
0.3 mm from the OD of the dorsal retina. Of all photoreceptors studied, the total percentage of rods and cones were 96.99%
and cones 3.01%, respectively. The mean ratio of rod and cone was 32.24 : 1. The cone photoreceptors of hamster contained
both M/L- and S-cone opsins. The present results suggest that the hamster retina is strongly rod-dominated with some photopic
property of vision.
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참고문헌 (27)
참고문헌 신청
Andrade da Costa BL / 2000 / Photoreceptor topography of the retina in the New World monkey Cebus apella / Vision Res 40 : 2395 ~ 2240
Beaudet L / 1997 / Cone photoreceptor topography in the retina of sexually mature Pacific salmonid fishes / J Comp Neurol 383 : 49 ~ 59
Blanks JC / 1984 / Specific binding of peanut lectin to a class of retinal photoreceptor cells. A species comparison / Invest Ophthalmol Vis Sci 25 : 546 ~ 557
Bridges CD / 1981 / Lectin receptors of rods and cones. Visualization by fluorescent label / Invest Ophthalmol Vis Sci 20 : 8 ~ 16
Chandler MJ / 1999 / Photoreceptor density of the domestic pig retina / Vet Ophthalmol 2 : 179 ~ 184
Beaudet L / 1997 / Cone photoreceptor topography in the retina of sexually mature Pacific salmonid fishes / J Comp Neurol 383 : 49 ~ 59
Blanks JC / 1984 / Specific binding of peanut lectin to a class of retinal photoreceptor cells. A species comparison / Invest Ophthalmol Vis Sci 25 : 546 ~ 557
Bridges CD / 1981 / Lectin receptors of rods and cones. Visualization by fluorescent label / Invest Ophthalmol Vis Sci 20 : 8 ~ 16
Chandler MJ / 1999 / Photoreceptor density of the domestic pig retina / Vet Ophthalmol 2 : 179 ~ 184
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