Abstract
The majority of clinically detectable lesions in diabetic retinopathy involve the retinal vasculature, and the severity of those vascular lesions predicts susceptibility to future vision loss from the diabetes. Capillary nonperfusion and/or degeneration are particularly important lesions of the early retinopathy, and the capillary abnormalities are believed to play a major and causal role in the progression to preretinal neovascularization that develops in some diabetic patients. An increasing number of therapeutic approaches have been identified that significantly inhibit the development of capillary obliteration in the retina. The challenge now is to identify which therapeutic approaches best inhibit the retinal vascular disease safely in patients, so that retinal sequelae of the vasoobliteration and ischemia can be inhibited in diabetes.
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References
Engerman RL, Meyer RK. Development of retinal vasculature in rats. Am J Ophthalmol. 1965;60:628–41.
Hughes S, Chang-Ling T. Roles of endothelial cell migration and apoptosis in vascular remodeling during development of the central nervous system. Microcirculation. 2000;7:317–33.
Ishida S et al. Leukocytes mediate retinal vascular remodeling during development and vaso-obliteration in disease. Nat Med. 2003;9:781–8.
Hughes S et al. Altered pericyte-endothelial relations in the rat retina during aging: implications for vessel stability. Neurobiol Aging. 2006;27:1838–47.
Dorrell MI, Friedlander M. Mechanisms of endothelial cell guidance and vascular patterning in the developing mouse retina. Prog Retin Eye Res. 2006;25:277–95.
Smith LE et al. Oxygen-induced retinopathy in the mouse. Invest Ophthalmol Vis Sci. 1994;35:101–11.
Madan A, Penn JS. Animal models of oxygen-induced retinopathy. Front Biosci. 2003;8:d1030–43.
Smith LE. Pathogenesis of retinopathy of prematurity. Semin Neonatol. 2003;8:469–73.
Heidary G, Vanderveen D, Smith LE. Retinopathy of prematurity: current concepts in molecular pathogenesis. Semin Ophthalmol. 2009;24:77–81.
Kohner EM, Henkind P. Correlation of fluorescein angiogram and retinal digest in diabetic retinopathy. Am J Ophthalmol. 1970;69:403–14.
de Venecia G, Davis MD, Engerman RL. Clinicopathologic correlations in diabetic retinopathy. 1. Histology and fluorescein angiography of microaneurysms. Arch Ophthalmol. 1976;94:1766–73.
Sleightholm MA, Aldington SJ, Arnold J, Kohner EM. Diabetic retinopathy: II. Assessment of severity and progression from fluorescein angiograms. J Diabet Complications. 1988;2:117–20.
Shimizu K, Kobayashi Y, Muraoka K. Midperipheral fundus involvement in diabetic retinopathy. Ophthalmology. 1981;88:601–12.
Witmer AN, Vrensen GF, Van Noorden CJ, Schlingemann RO. Vascular endothelial growth factors and angiogenesis in eye disease. Prog Retin Eye Res. 2003;22:1–29.
Jardeleza MS, Miller JW. Review of anti-VEGF therapy in proliferative diabetic retinopathy. Semin Ophthalmol. 2009;24:87–92.
Schlingemann RO, Witmer AN. Treatment of retinal diseases with VEGF antagonists. Prog Brain Res. 2009;175:253–67.
Engerman RL. Pathogenesis of diabetic retinopathy. Diabetes. 1989;38:1203–6.
Kawai SI et al. Modeling of risk factors for the degeneration of retinal ganglion cells after ischemia/reperfusion in rats: effects of age, caloric restriction, diabetes, pigmentation, and glaucoma. FASEB J. 2001;15:1285–7.
Takahashi K, Kishi S, Muraoka K, Shimizu K. Reperfusion of occluded capillary beds in diabetic retinopathy. Am J Ophthalmol. 1998;126:791–7.
Schroder S, Palinski W, Schmid-Schonbein GW. Activated monocytes and granulocytes, capillary nonperfusion, and neovascularization in diabetic retinopathy. Am J Pathol. 1991;139:81–100.
Harris AG, Skalak TC, Hatchell DL. Leukocyte-capillary plugging and network resistance are increased in skeletal muscle of rats with streptozotocin-induced hyperglycemia. Int J Microcirc Clin Exp. 1994;14:159–66.
Hatchell DL, Wilson CA, Saloupis P. Neutrophils plug capillaries in acute experimental retinal ischemia. Microvasc Res. 1994;47:344–54.
Miyamoto K, Hiroshiba N, Tsujikawa A, Ogura Y. In vivo demonstration of increased leukocyte entrapment in retinal microcirculation of diabetic rats. Invest Ophthalmol Vis Sci. 1998;39:2190–4.
Miyamoto K et al. Prevention of leukostasis and vascular leakage in streptozotocin-induced diabetic retinopathy via intercellular adhesion molecule-1 inhibition. Proc Natl Acad Sci USA. 1999;96:10836–41.
Nonaka A et al. PKC-beta inhibitor (LY333531) attenuates leukocyte entrapment in retinal microcirculation of diabetic rats. Invest Ophthalmol Vis Sci. 2000;41:2702–6.
Ogura Y. In vivo evaluation of leukocyte dynamics in the retinal and choroidal circulation. Jpn J Ophthalmol. 2000;44:322–3.
Joussen AM et al. Leukocyte-mediated endothelial cell injury and death in the diabetic retina. Am J Pathol. 2001;158:147–52.
Joussen AM et al. Nonsteroidal anti-inflammatory drugs prevent early diabetic retinopathy via TNF-alpha suppression. FASEB J. 2002;16:438–40.
Kinoshita N et al. Effective and selective prevention of retinal leukostasis in streptozotocin-induced diabetic rats using gliclazide. Diabetologia. 2002;45:735–9.
Mori F et al. Inhibitory effect of losartan, an AT1 angiotensin II receptor antagonist, on increased leucocyte entrapment in retinal microcirculation of diabetic rats. Br J Ophthalmol. 2002;86:1172–4.
Moore TC et al. The role of advanced glycation end products in retinal microvascular Âleukostasis. Invest Ophthalmol Vis Sci. 2003;44:4457–64.
Tadayoni R, Paques M, Gaudric A, Vicaut E. Erythrocyte and leukocyte dynamics in the retinal capillaries of diabetic mice. Exp Eye Res. 2003;77:497–504.
Joussen AM et al. A central role for inflammation in the pathogenesis of diabetic retinopathy. FASEB J. 2004;18:1450–2.
Tamura H et al. Intravitreal injection of corticosteroid attenuates leukostasis and vascular leakage in experimental diabetic retina. Invest Ophthalmol Vis Sci. 2005;46:1440–4.
Kinukawa Y, Shimura M, Tamai M. Quantifying leukocyte dynamics and plugging in retinal microcirculation of streptozotosin-induced diabetic rats. Curr Eye Res. 1999;18:49–55.
Kelly LW, Barden CA, Tiedeman JS, Hatchell DL. Alterations in viscosity and filterability of whole blood and blood cell subpopulations in diabetic cats. Exp Eye Res. 1993;56:341–7.
Lefer DJ, McLeod DS, Merges C, Lutty GA. Immunolocalization of ICAM-1 (CD54) in the posterior eye of sickle cell and diabetic patients. Invest Ophthalmol Vis Sci. 1993;34:1206.
McLeod DS, Lefer DJ, Merges C, Lutty GA. Enhanced expression of intercellular adhesion molecule-1 and P-selectin in the diabetic human retina and choroid. Am J Pathol. 1995;147:642–53.
Zheng L, Szabo C, Kern TS. Poly(ADP-ribose) polymerase is involved in the development of diabetic retinopathy via regulation of nuclear factor-kappaB. Diabetes. 2004;53:2960–7.
Kim SY et al. Neutrophils are associated with capillary closure in spontaneously diabetic monkey retinas. Diabetes. 2005;54:1534–42.
Kern TS. Contributions of inflammatory processes to the development of the early stages of diabetic retinopathy. Exp Diabetes Res. 2007;2007:95103.
Adamis AP, Berman AJ. Immunological mechanisms in the pathogenesis of diabetic retinopathy. Semin Immunopathol. 2008;30:65–84.
Hirata F, Yoshida M, Ogura Y. High glucose exacerbates neutrophil adhesion to human retinal endothelial cells. Exp Eye Res. 2006;82:179–82.
Zheng L et al. Critical role of inducible nitric oxide synthase in degeneration of retinal Âcapillaries in mice with streptozotocin-induced diabetes. Diabetologia. 2007;50:1987–96.
Gubitosi-Klug RA, Talahalli R, Du Y, Nadler JL, Kern TS. 5-Lipoxygenase, but not 12/15-lipoxygenase, contributes to degeneration of retinal capillaries in a mouse model of diabetic retinopathy. Diabetes. 2008;57:1387–93.
Boeri D, Maiello M, Lorenzi M. Increased prevalence of microthromboses in retinal capillaries of diabetic individuals. Diabetes. 2001;50:1432–9.
Yamashiro K et al. Platelets accumulate in the diabetic retinal vasculature following endothelial death and suppress blood-retinal barrier breakdown. Am J Pathol. 2003;163:253–9.
Sun W, Gerhardinger C, Dagher Z, Hoehn T, Lorenzi M. Aspirin at low-intermediate concentrations protects retinal vessels in experimental diabetic retinopathy through non-Âplatelet-mediated effects. Diabetes. 2005;54:3418–26.
Early Treatment Diabetic Retinopathy Research Group. Effects of aspirin treatment on Âdiabetic retinopathy. Ophthalmology. 1991;98:757–65.
DAMAD Study Group. Effect of aspirin alone and aspirin plus dipyridamole in early diabetic retinopathy: a multicenter randomized controlled clinical trial. Diabetes. 1989;38:491–8.
Grunwald JE, DuPont J, Riva CE. Retinal haemodynamics in patients with early diabetes mellitus. Br J Ophthalmol. 1996;80:327–31.
Konno S et al. Retinal blood flow changes in type I diabetes. A long-term follow-up study. Invest Ophthalmol Vis Sci. 1996;37:1140–8.
Clermont AC, Bursell SE. Retinal blood flow in diabetes. Microcirculation. 2007;14:49–61.
Pemp B, Schmetterer L. Ocular blood flow in diabetes and age-related macular degeneration. Can J Ophthalmol. 2008;43:295–301.
Bek T. Immunohistochemical characterization of retinal glial cell changes in areas of vascular occlusion secondary to diabetic retinopathy. Acta Ophthalmol Scand. 1997;75:388–92.
Bek T. Glial cell involvement in vascular occlusion of diabetic retinopathy. Acta Ophthalmol Scand. 1997;75:239–43.
Schmidinger G, Maar N, Bolz M, Scholda C, Schmidt-Erfurth U. Repeated intravitreal bevacizumab (Avastin(R)) treatment of persistent new vessels in proliferative diabetic retinopathy after complete panretinal photocoagulation. Acta Ophthalmol. 2011;89:76–81.
Mendrinos E, Donati G, Pournaras CJ. Rapid and persistent regression of severe new vessels on the disc in proliferative diabetic retinopathy after a single intravitreal injection of pegaptanib. Acta Ophthalmol. 2009;87:683–4.
Diabetes Control and Complications Trial Research Group. The effect of intensive treatment of diabetes on the development of long-term complications in insulin-dependent diabetes mellitus. N Engl J Med. 1993;329:977–86.
United Kingdom Prospective Diabetes Study. Intensive blood-glucose control with sulphonylureas or insulin compared with conventional treatment and risk of complications in patients with type 2 diabetes. Lancet. 1998;352:837–53.
Chaturvedi N et al. Effect of lisinopril on progression of retinopathy in normotensive people with type 1 diabetes. The EUCLID Study Group. EURODIAB Controlled Trial of Lisinopril in Insulin-Dependent Diabetes Mellitus. Lancet. 1998;351:28–31.
UK Prospective Diabetes Study Group. Tight blood pressure control and risk of macrovascular and microvascular complications in type 2 diabetes: UKPDS 38. UK Prospective Diabetes Study Group. BMJ. 1998;317:703–13.
Keech AC et al. Effect of fenofibrate on the need for laser treatment for diabetic retinopathy (FIELD study): a randomised controlled trial. Lancet. 2007;370:1687–97.
Engerman RL, Bloodworth Jr JMB, Nelson S. Relationship of microvascular disease in diabetes to metabolic control. Diabetes. 1977;26:760–9.
Engerman RL, Kern TS. Progression of incipient diabetic retinopathy during good glycemic control. Diabetes. 1987;36:808–12.
Hammes H-P et al. Islet transplantation inhibits diabetic retinopathy in the sucrose-fed diabetic Cohen diabetic rat. Invest Ophthalmol Vis Sci. 1993;34:2092–6.
Zhang JZ, Xi X, Gao L, Kern TS. Captopril inhibits capillary degeneration in the early stages of diabetic retinopathy. Curr Eye Res. 2007;32:883–9.
Hammes HP et al. Acceleration of experimental diabetic retinopathy in the rat by omega-3 fatty acids. Diabetologia. 1996;39:251–5.
Barile GR et al. The RAGE axis in early diabetic retinopathy. Invest Ophthalmol Vis Sci. 2005;46:2916–24.
Mizutani M, Kern TS, Lorenzi M. Accelerated death of retinal microvascular cells in human and experimental diabetic retinopathy. J Clin Invest. 1996;97:2883–90.
Kern TS et al. Response of capillary cell death to aminoguanidine predicts the development of retinopathy: comparison of diabetes and galactosemia. Invest Ophthalmol Vis Sci. 2000;41:3972–8.
Kowluru RA, Tang J, Kern TS. Abnormalities of retinal metabolism in diabetes and Âexperimental galactosemia. VII. Effect of long-term administration of antioxidants on the development of retinopathy. Diabetes. 2001;50:1938–42.
Stitt A et al. The AGE inhibitor pyridoxamine inhibits development of retinopathy in experimental diabetes. Diabetes. 2002;51:2826–32.
Asnaghi V, Gerhardinger C, Hoehn T, Adeboje A, Lorenzi M. A role for the polyol pathway in the early neuroretinal apoptosis and glial changes induced by diabetes in the rat. Diabetes. 2003;52:506–11.
Kowluru RA, Odenbach S. Effect of long-term administration of alpha-lipoic acid on retinal capillary cell death and the development of retinopathy in diabetic rats. Diabetes. 2004;53:3233–8.
Kern TS et al. Topical administration of nepafenac inhibits diabetes-induced retinal microvascular disease and underlying abnormalities of retinal metabolism and physiology. ÂDiabetes. 2007;56:373–9.
Zheng L, Howell SJ, Hatala DA, Huang K, Kern TS. Salicylate-based anti-inflammatory drugs inhibit the early lesion of diabetic retinopathy. Diabetes. 2007;56:337–45.
Kern TS, Engerman RL. Vascular lesions in diabetes are distributed non-uniformly within the retina. Exp Eye Res. 1995;60:545–9.
Tang J, Mohr S, Du Y, Kern TS. Non-uniform distribution of lesions and biochemical abnormalities within the retina of diabetic humans. Curr Eye Res. 2003;27:7–13.
Su EN et al. Continued progression of retinopathy despite spontaneous recovery to normoglycemia in a long-term study of streptozotocin-induced diabetes in rats. Graefes Arch Clin Exp Ophthalmol. 2000;238:163–73.
Kowluru RA. Effect of reinstitution of good glycemic control on retinal oxidative stress and nitrative stress in diabetic rats. Diabetes. 2003;52:818–23.
Kowluru RA, Chakrabarti S, Chen S. Re-institution of good metabolic control in diabetic rats and activation of caspase-3 and nuclear transcriptional factor (NF-kappaB) in the Âretina. Acta Diabetol. 2004;41:194–9.
Kowluru RA, Kanwar M, Kennedy A. Metabolic memory phenomenon and accumulation of peroxynitrite in retinal capillaries. Exp Diabetes Res. 2007;2007:21976.
El-Osta A et al. Transient high glucose causes persistent epigenetic changes and altered gene expression during subsequent normoglycemia. J Exp Med. 2008;205:2409–17.
Feke GT, Zuckerman R, Green GJ, Weiter JJ. Response of human retinal blood flow to light and dark. Invest Ophthalmol Vis Sci. 1983;24:136–41.
Ferrez PW, Chamot SR, Petrig BL, Pournaras CJ, Riva CR. Effect of visual stimulation on blood oxygenation in the optic nerve head of miniature pigs: a pilot study. Klin Monbl Augenheilkd. 2004;221:364–6.
Hardarson SH et al. Oxygen saturation in human retinal vessels is higher in dark than in light. Invest Ophthalmol Vis Sci. 2009;50:2308–11.
Riva CE, Logean E, Falsini B. Visually evoked hemodynamical response and assessment of neurovascular coupling in the optic nerve and retina. Prog Retin Eye Res. 2005;24:183–215.
de Gooyer TE et al. Retinopathy is reduced during experimental diabetes in a mouse model of outer retinal degeneration. Invest Ophthalmol Vis Sci. 2006;47:5561–8.
Feng Y et al. Vasoregression linked to neuronal damage in the rat with defect of polycystin-2. PLoS One. 2009;4:e7328.
Unoki N et al. Retinal sensitivity loss and structural disturbance in areas of capillary nonperfusion of eyes with diabetic retinopathy. Am J Ophthalmol. 2007;144:755–60.
Bresnick GH, De Venecia G, Myers FL, Harris JA, Davis MD. Retinal ischemia in diabetic retinopathy. Arch Ophthalmol. 1975;93:1300–10.
Zhang J-Z, Kern TS. Captopril inhibits intracellular glucose accumulation in retinal cells in diabetes. Invest Ophthalmol Vis Sci. 2003;44:4001–5.
Vincent JA, Mohr S. Inhibition of caspase-1/Interleukin-1β signaling prevents degeneration of retinal capillaries in diabetes and galactosemia. Diabetes. 2007;56:224–30.
Krady JK et al. Minocycline reduces proinflammatory cytokine expression, microglial activation, and caspase-3 activation in a rodent model of diabetic retinopathy. Diabetes. 2005;54:1559–65.
Du, Y. et al. Inhibition of p38 MAPK inhibits early stages of diabetic retinopathy. 2010;51:2158–64.
Sun W, Hoenh T, Gerhardinger C, Lorenzi M. Antiplatelet/anti-inflammatory drugs do not prevent early neuroretinal apoptosis and glial changes in diabetic rats (American Diabetes Association abstract). Diabetes 2004;899-P.
Behl Y et al. Diabetes-enhanced tumor necrosis factor-alpha production promotes apoptosis and the loss of retinal microvascular cells in type 1 and type 2 models of diabetic retinopathy. Am J Pathol. 2008;172:1411–8.
Behl Y, Krothapalli P, Desta T, Roy S, Graves DT. FOXO1 plays an important role in enhanced microvascular cell apoptosis and microvascular cell loss in type 1 and type 2 diabetic rats. Diabetes. 2009;58:917–25.
Dagher Z et al. Studies of rat and human retinas predict a role for the polyol pathway in human diabetic retinopathy. Diabetes. 2004;53:2404–11.
Ramana KV, Bhatnagar A, Srivastava SK. Inhibition of aldose reductase attenuates TNF-alpha-induced expression of adhesion molecules in endothelial cells. FASEB J. 2004;18:1209–18.
Ramana KV, Friedrich B, Srivastava S, Bhatnagar A, Srivastava SK. Activation of nuclear factor-kappaB by hyperglycemia in vascular smooth muscle cells is regulated by aldose reductase. Diabetes. 2004;53:2910–20.
Ramana KV et al. Endotoxin-induced cardiomyopathy and systemic inflammation in mice is prevented by aldose reductase inhibition. Circulation. 2006;114:1838–46.
Tammali R, Ramana KV, Singhal SS, Awasthi S, Srivastava SK. Aldose reductase regulates growth factor-induced cyclooxygenase-2 expression and prostaglandin e2 production in human colon cancer cells. Cancer Res. 2006;66:9705–13.
Hammes HP et al. Benfotiamine blocks three major pathways of hyperglycemic damage and prevents experimental diabetic retinopathy. Nat Med. 2003;9:294–9.
Murakoshi M et al. Pleiotropic effect of pyridoxamine on diabetic complications via CD36 expression in KK-Ay/Ta mice. Diabetes Res Clin Pract. 2009;83:183–9.
Hammes H-P, Martin S, Federlin K, Geisen K, Brownlee M. Aminoguanidine treatment inhibits the development of experimental diabetic retinopathy. Proc Natl Acad Sci USA. 1991;88:11555–8.
Hammes H-P et al. Aminoguanidine inhibits the development of accelerated diabetic retinopathy in the spontaneous hypertensive rat. Diabetologia. 1994;37:32–5.
Hoffmann J et al. Tenilsetam prevents early diabetic retinopathy without correcting pericyte loss. Thromb Haemost. 2006;95:689–95.
Hammes HP, Bartmann A, Engel L, Wulfroth P. Antioxidant treatment of experimental diabetic retinopathy in rats with nicanartine. Diabetologia. 1997;40:629–34.
Kowluru RA, Kanwar M, Chan PS, Zhang JP. Inhibition of retinopathy and retinal metabolic abnormalities in diabetic rats with AREDS-based micronutrients. Arch Ophthalmol. 2008;126:1266–72.
Hammes H-P, Federoff HJ, Brownlee M. Nerve growth factor prevents both neuroretinal programmed cell death and capillary pathology in experimental diabetes. Mol Med. 1995;1:527–34.
Sofroniew MV, Howe CL, Mobley WC. Nerve growth factor signaling, neuroprotection, and neural repair. Annu Rev Neurosci. 2001;24:1217–81.
Robison Jr WG, Tillis TN, Laver N, Kinoshita JH. Diabetes-related histopathologies of the rat retina prevented with an aldose reductase inhibitor. Exp Eye Res. 1990;50:355–66.
Robison Jr WG, Laver NM, Jacot JL, Glover JP. Sorbinil prevention of diabetic-like retinopathy in the galactose-fed rat model. Invest Ophthalmol Vis Sci. 1995;36:2368–80.
Joussen AM et al. TNF-alpha mediated apoptosis plays an important role in the development of early diabetic retinopathy and long-term histopathological alterations. Mol Vis. 2009;15:1418–28.
Berkowitz BA, Gradianu M, Bissig D, Kern TS, Roberts R. Retinal ion regulation in a mouse model of diabetic retinopathy: natural history and the effect of Cu/Zn superoxide dismutase overexpression. Invest Ophthalmol Vis Sci. 2009;50:2351–8.
Kanwar M, Chan PS, Kern TS, Kowluru RA. Oxidative damage in the retinal mitochondria of diabetic mice: possible protection by superoxide dismutase. Invest Ophthalmol Vis Sci. 2007;48:3805–11.
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This work was funded by PHS grant EY00300 and a grant from the Medical Research Service of the Department of Veteran Affairs.
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Kern, T.S. (2012). Capillary Degeneration in Diabetic Retinopathy. In: Tombran-Tink, J., Barnstable, C., Gardner, T. (eds) Visual Dysfunction in Diabetes. Ophthalmology Research. Springer, New York, NY. https://doi.org/10.1007/978-1-60761-150-9_9
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