PMID- 26729343 OWN - NLM STAT- MEDLINE DCOM- 20161103 LR - 20220331 IS - 1613-2246 (Electronic) IS - 0021-5155 (Linking) VI - 60 IP - 2 DP - 2016 Mar TI - Changes in morphology and visual function over time in mouse models of retinal degeneration: an SD-OCT, histology, and electroretinography study. PG - 111-25 LID - 10.1007/s10384-015-0422-0 [doi] AB - PURPOSE: To examine the long-term natural course of retinal degeneration in rd10 and rd12 mice using serial spectral-domain optical coherence tomography (SD-OCT), electroretinography/electroretinograms (ERGs), and histological analysis. METHODS: Photoreceptor layer thickness and the ability to visualize photoreceptor ellipsoid zones were analyzed using SD-OCT images, and these images were compared with hematoxylin and eosin-stained sections and electron microscopy images. The a- and b-wave amplitudes of the ERGs were analyzed. RESULTS: In rd10 mice, the photoreceptor layer thickness rapidly decreased, and the photoreceptor ellipsoid zone was visible on SD-OCT images in 89 and 43 % of eyes of 21 and 33-day-old mice, respectively. In rd12 mice, the photoreceptor layer gradually thinned, and the ellipsoid zone remained visible in 92 % of eyes at 19 months. Electron microscopy revealed that photoreceptor degeneration had occurred on the inner side of the outer nuclear layer in 21-day-old rd10 and 7-month-old rd12 mice, possibly due to autophagy mechanisms. Scotopic ERGs of rd10 mice showed a diminished response at 21 days; at 33 days, no response was detectable. In rd12 mice, scotopic ERGs were undetectable at 28 days (stimulus intensity 3.0 cds/m(2)). Photopic ERGs were nearly undetectable in 28-day-old rd10 mice, but a small b-wave was still recordable in 13-month-old rd12 mice. CONCLUSIONS: Our results demonstrate that visual function deteriorated with photoreceptor degeneration within 1 month in rd10 mice. In rd12 mice, however, the process of visual function deterioration and photoreceptor degeneration was still in progress at 13 months of age. FAU - Hasegawa, Tomoko AU - Hasegawa T AD - Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. FAU - Ikeda, Hanako O AU - Ikeda HO AD - Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. hanakoi@kuhp.kyoto-u.ac.jp. AD - Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan. hanakoi@kuhp.kyoto-u.ac.jp. FAU - Nakano, Noriko AU - Nakano N AD - Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. FAU - Muraoka, Yuki AU - Muraoka Y AD - Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. FAU - Tsuruyama, Tatsuaki AU - Tsuruyama T AD - Center for Anatomical Studies, Kyoto University Graduate School of Medicine, Kyoto, Japan. FAU - Okamoto-Furuta, Keiko AU - Okamoto-Furuta K AD - Center for Anatomical Studies, Kyoto University Graduate School of Medicine, Kyoto, Japan. FAU - Kohda, Haruyasu AU - Kohda H AD - Center for Anatomical Studies, Kyoto University Graduate School of Medicine, Kyoto, Japan. FAU - Yoshimura, Nagahisa AU - Yoshimura N AD - Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160105 PL - Japan TA - Jpn J Ophthalmol JT - Japanese journal of ophthalmology JID - 0044652 SB - IM MH - Animals MH - *Disease Models, Animal MH - Electroretinography MH - Follow-Up Studies MH - Mice MH - Retina/*pathology MH - Retinal Degeneration/*physiopathology MH - Tomography, Optical Coherence MH - Visual Acuity/*physiology OTO - NOTNLM OT - Longitudinal study OT - Retinal degeneration OT - Spectral-domain optical coherence tomography OT - rd10 OT - rd12 EDAT- 2016/01/06 06:00 MHDA- 2016/11/04 06:00 CRDT- 2016/01/06 06:00 PHST- 2015/06/04 00:00 [received] PHST- 2015/11/12 00:00 [accepted] PHST- 2016/01/06 06:00 [entrez] PHST- 2016/01/06 06:00 [pubmed] PHST- 2016/11/04 06:00 [medline] AID - 10.1007/s10384-015-0422-0 [pii] AID - 10.1007/s10384-015-0422-0 [doi] PST - ppublish SO - Jpn J Ophthalmol. 2016 Mar;60(2):111-25. doi: 10.1007/s10384-015-0422-0. Epub 2016 Jan 5.