Jci_page_head_homepage_01 Jci_page_head_homepage_02
Michael I. Dorrell, Edith Aguilar, Ruth Jacobson, Oscar Yanes, Ray Gariano, John Heckenlively, Eyal Banin, G. Anthony Ramirez, Mehdi Gasmi, Alan Bird, Gary Siuzdak, Martin Friedlander
Published in Volume 119, Issue 3
J Clin Invest. 2009; 119(3):611–623 doi:10.1172/JCI35977
Abstract | Full text | PDF | Supplemental material
Options: View larger image (or click on image)
Medium
Figure 4
Photoreceptor degeneration, loss of retinal function, and increased oxidative stress are associated with intraretinal NV in Vldlr–/– mouse retinas.

(A) Opsin staining was reduced in Vldlr–/– retinal whole mounts, with loss of opsin directly associated with the presence of subretinal NV. Original magnification, ×100. (B) Reduced mRNA production of opsin-1 (cone-specific opsin) and rhodopsin (rod-specific opsin) in retinas of 2- and 7-mo-old Vldlr–/– mice compared with age-matched C57BL6/J WT controls, indicating a substantial loss of cones and, to a lesser extent, rods. Error bars denote SEM. n = 18 [2 mo WT], 28 [2 mo Vldlr–/–], 36 [7 mo WT], 30 [7 mo Vldlr–/–]. (C) Photoreceptor degeneration resulted in abnormal ERGs, characterized by delayed responses in scotopic measurements and dramatic reductions in the OPs (insets). (D) Photopic ERGs of Vldlr–/– mice were also characterized by reduced and delayed responses, with particularly reduced responses to light flicker (insets), a specific measurement of cone activity.