PMID- 23989190 OWN - NLM STAT- MEDLINE DCOM- 20131209 LR - 20211021 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 54 IP - 10 DP - 2013 Oct 9 TI - BDNF treatment and extended recovery from optic nerve trauma in the cat. PG - 6594-604 LID - 10.1167/iovs.13-12683 [doi] AB - PURPOSE: We examined the treatment period necessary to restore retinal and visual stability following trauma to the optic nerve. METHODS: Cats received unilateral optic nerve crush and no treatment (NT), treatment of the injured eye with brain-derived neurotrophic factor (BDNF), or treatment of the injured eye combined with treatment of visual cortex for 2 or 4 weeks. After 1-, 2-, 4-, or 6-week survival periods, pattern electroretinograms (PERGs) were obtained and retinal ganglion cell (RGC) survival determined. RESULTS: In the peripheral retina, RGC survival for NT, eye only, and eye + cortex animals was 55%, 78%, and 92%, respectively, at 1 week, and 31%, 60%, and 93%, respectively, at 2 weeks. PERGs showed a similar pattern of improvement. After 4 weeks, RGC survival was 7%, 29%, and 53% in each group, with PERGs in the dual-treated animals similar to the 1- to 2-week animals. For area centralis (AC), the NT, eye only, and eye + cortex animals showed 47%, 78%, and 82% survival, respectively, at 2 weeks, and 13%, 54%, and 81% survival, respectively, at 4 weeks. Removing the pumps at 2 weeks resulted in ganglion cell survival levels of 76% and 74% in the AC at 4 and 6 weeks postcrush, respectively. The PERGs from 2-week treated, but 4- and 6-week survival animals were comparable to those of the 2-week animals. CONCLUSIONS: Treating the entire central visual pathway is important following optic nerve trauma. Long-term preservation of central vision may be achieved with as little as 2 weeks of treatment using this approach. FAU - Weber, Arthur J AU - Weber AJ AD - Department of Physiology, Neuroscience Training Program, Michigan State University, East Lansing, Michigan. FAU - Harman, Christine D AU - Harman CD LA - eng GR - R01 EY011159/EY/NEI NIH HHS/United States GR - EY11159/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20131009 PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuroprotective Agents) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*therapeutic use MH - Cats MH - Disease Models, Animal MH - Electroretinography MH - Nerve Crush MH - Neuroprotective Agents/*therapeutic use MH - Optic Nerve Injuries/*drug therapy/pathology/physiopathology MH - Recovery of Function MH - Retinal Ganglion Cells/physiology MH - Visual Cortex PMC - PMC3803139 OTO - NOTNLM OT - neurotrophins OT - optic neuropathy OT - retina EDAT- 2013/08/31 06:00 MHDA- 2013/12/16 06:00 PMCR- 2014/04/01 CRDT- 2013/08/31 06:00 PHST- 2013/08/31 06:00 [entrez] PHST- 2013/08/31 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] PHST- 2014/04/01 00:00 [pmc-release] AID - iovs.13-12683 [pii] AID - 10.1167/iovs.13-12683 [doi] PST - epublish SO - Invest Ophthalmol Vis Sci. 2013 Oct 9;54(10):6594-604. doi: 10.1167/iovs.13-12683.