Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Editorial
. 2017 Oct 27:4:86.
doi: 10.21037/sci.2017.10.01. eCollection 2017.

Nicotinamide: a novel treatment for age-related macular degeneration?

Affiliations
Editorial

Nicotinamide: a novel treatment for age-related macular degeneration?

Peter D Westenskow. Stem Cell Investig. .
No abstract available

PubMed Disclaimer

Conflict of interest statement

Conflicts of Interest: The author has no conflict of interest to declare.

Figures

Figure 1
Figure 1
Anatomy of the outer retina and cardinal features of age-related macular degeneration (AMD). (A) The extraretinal choriocapillaris (CC) is divided from the retinal pigment epithelium (RPE) by Bruch’s membrane (BM). RPE provide critical support for photoreceptors; (B) features of AMD, arbitrarily numbered top to bottom, are as follows: (1) choriocapillaris drop out; (2) BM with lipids (green circles) and reduced diffusibility; (3) formation of drusen that also limits diffusibility; (4) RPE dysfunction/death; and (5) photoreceptor atrophy. Choroidal neovascularization characteristic of wet AMD, is not shown.
Figure 2
Figure 2
Putative disease pathways in AMD, and limitations of using iPS-RPE for AMD modeling. (A) Initiating factors combine and converge on photoreceptor cells (PRCs), RPE, Bruch’s Membrane (BM), and/or the choroid (C). Changes to these components initiate a cascade of intermediate disease mechanisms. (B) Red lines mark the limited events from which data can be obtained from iPS-RPE. Only genetic contributions are interrogated, and downstream effects propagated through early and intermediate stages can only be predicted. Reproduced with modifications and permission of the American Society for Clinical Investigation, from Bird AC, JCI 2010 (8); permission conveyed through the Copyright Clearance Center Inc.

Comment on

References

    1. Saini JS, Corneo B, Miller JD, et al. Nicotinamide Ameliorates Disease Phenotypes in a Human iPSC Model of Age-Related Macular Degeneration. Cell Stem Cell 2017;20:635-647.e7. 10.1016/j.stem.2016.12.015 - DOI - PMC - PubMed
    1. Sapieha P. Eyeing central neurons in vascular growth and reparative angiogenesis. Blood 2012;120:2182-94. 10.1182/blood-2012-04-396846 - DOI - PubMed
    1. Strauss O. The retinal pigment epithelium in visual function. Physiol Rev 2005;85:845-81. 10.1152/physrev.00021.2004 - DOI - PubMed
    1. Stone J, Maslim J, Valter-Kocsi K, et al. Mechanisms of photoreceptor death and survival in mammalian retina. Prog Retin Eye Res 1999;18:689-735. 10.1016/S1350-9462(98)00032-9 - DOI - PubMed
    1. Wong WL, Su X, Li X, et al. Global prevalence of age-related macular degeneration and disease burden projection for 2020 and 2040: a systematic review and meta-analysis. Lancet Glob Health 2014;2:e106-16. 10.1016/S2214-109X(13)70145-1 - DOI - PubMed

LinkOut - more resources