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    Jacque Duncan, MD

    SchoolUCSF School of Medicine
    Address10 Koret Way
    San Francisco CA 94143
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      University of California, San FranciscoM.D. Medicine1995

      Collapse Overview 
      Collapse Overview
      Retinitis pigmentosa (RP) affects about 1 in 3,500 people worldwide. Age-related macular degeneration (AMD) affects as many as 1 in 4 people by the age of 75 and is the leading cause of blindness in people over age 50 in the United States. Both RP and AMD have a hereditary basis, and currently, there is no cure for either of these types of hereditary retinal degeneration. My clinical specialty is diagnosing and caring for patients with these diseases, using modalities from fluorescein angiography, to optical coherence tomography (OCT), to electroretinography (ERG).

      In both RP and AMD, loss of vision is a result of photoreceptor cell degeneration and death. Treatments that can prevent photoreceptor degeneration in experimental models of retinal degenerations may have utility in preventing degeneration in both RP and AMD. I am interested in investigating novel treatments to preserve retinal function in patients with RP, cone rod dystrophy, Stargardt disease, Best disease and AMD.

      Patients with rod specific defects undergo degeneration not only of rods, but also of cone photoreceptors. Because cones are responsible for fine visual acuity and color perception, their degeneration is particularly disabling for patients. I am interested in studying the relationship between cone photoreceptor survival and rod-specific gene defects in hereditary retinal degenerations, with the goal of preserving visual function mediated by both rods and cones.

      A major challenge in the study of retinal degenerations lies in the fact that the cells affected by these diseases, the photoreceptors and retinal pigment epithelial (RPE) cells, are not visible in the eyes of living people. My collaborator Dr. Austin Roorda at the UC Berkeley School of Optometry has developed a novel device, the adaptive optics scanning laser ophthalmoscope (AOSLO), with the ability to image individual cone photoreceptors in the central retina of living eyes. We have studied cones in patients with RP, cone-rod dystrophy and other types of retinal degeneration to better understand why vision is lost in these diseases. See Dr. Roorda’s laboratory webpage for additional details about this research.

      The UCSF Retinal Degenerations Clinic participated in 3 multi-center clinical trials for patients with inherited retinal degenerations. Two Phase II/III clinical trials evaluated the effect that a growth factor called ciliary neurotrophic factor (CNTF) has on retinal function in patients with early and late stages of RP. A Phase I study evaluated the safety and efficacy of a new generation epiretinal prosthetic device to stimulate visual perception in patients with end-stage RP. These clinical trials are among the first to study possible treatments for patients with these blinding diseases.

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      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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      1. Humayun MS, Dorn JD, da Cruz L, Dagnelie G, Sahel JA, Stanga PE, Cideciyan AV, Duncan JL, Eliott D, Filley E, Ho AC, Santos A, Safran AB, Arditi A, Del Priore LV, Greenberg RJ. Interim results from the international trial of Second Sight's visual prosthesis. Ophthalmology. 2012 Apr; 119(4):779-88.
        View in: PubMed PMC3319859
      2. Mkrtchyan M, Lujan BJ, Merino D, Thirkill CE, Roorda A, Duncan JL. Outer retinal structure in patients with acute zonal occult outer retinopathy. Am J Ophthalmol. 2012 Apr; 153(4):757-68, 768.e1.
        View in: PubMed PMC3288686
      3. Merino D, Duncan JL, Tiruveedhula P, Roorda A. Observation of cone and rod photoreceptors in normal subjects and patients using a new generation adaptive optics scanning laser ophthalmoscope. Biomed Opt Express. 2011 Aug 1; 2(8):2189-201.
        View in: PubMed PMC3149518
      4. Chen Y, Ratnam K, Sundquist SM, Lujan B, Ayyagari R, Gudiseva VH, Roorda A, Duncan JL. Cone photoreceptor abnormalities correlate with vision loss in patients with Stargardt disease. Invest Ophthalmol Vis Sci. 2011 May; 52(6):3281-92.
        View in: PubMed PMC3109028
      5. Talcott KE, Ratnam K, Sundquist SM, Lucero AS, Lujan BJ, Tao W, Porco TC, Roorda A, Duncan JL. Longitudinal study of cone photoreceptors during retinal degeneration and in response to ciliary neurotrophic factor treatment. Invest Ophthalmol Vis Sci. 2011 Apr; 52(5):2219-26.
        View in: PubMed PMC3080173
      6. Deveault C, Billingsley G, Duncan JL, Bin J, Theal R, Vincent A, Fieggen KJ, Gerth C, Noordeh N, Traboulsi EI, Fishman GA, Chitayat D, Knueppel T, Millán JM, Munier FL, Kennedy D, Jacobson SG, Innes AM, Mitchell GA, Boycott K, Héon E. BBS genotype-phenotype assessment of a multiethnic patient cohort calls for a revision of the disease definition. Hum Mutat. 2011 Jun; 32(6):610-9.
        View in: PubMed
      7. Duncan JL, Talcott KE, Ratnam K, Sundquist SM, Lucero AS, Day S, Zhang Y, Roorda A. Cone structure in retinal degeneration associated with mutations in the peripherin/RDS gene. Invest Ophthalmol Vis Sci. 2011 Mar; 52(3):1557-66.
        View in: PubMed PMC3101697
      8. Thorne JE, Van Natta ML, Jabs DA, Duncan JL, Srivastava SK. Visual field loss in patients with cytomegalovirus retinitis. Ophthalmology. 2011 May; 118(5):895-901.
        View in: PubMed PMC3087851
      9. Godara P, Dubis AM, Roorda A, Duncan JL, Carroll J. Adaptive optics retinal imaging: emerging clinical applications. Optom Vis Sci. 2010 Dec; 87(12):930-41.
        View in: PubMed PMC3017557
      10. Gelfand JM, Duncan JL, Racine CA, Gillum LA, Chin CT, Zhang Y, Zhang Q, Wong LJ, Roorda A, Green AJ. Heterogeneous patterns of tissue injury in NARP syndrome. J Neurol. 2011 Mar; 258(3):440-8.
        View in: PubMed PMC3068520
      11. Billingsley G, Bin J, Fieggen KJ, Duncan JL, Gerth C, Ogata K, Wodak SS, Traboulsi EI, Fishman GA, Paterson A, Chitayat D, Knueppel T, Millán JM, Mitchell GA, Deveault C, Héon E. Mutations in chaperonin-like BBS genes are a major contributor to disease development in a multiethnic Bardet-Biedl syndrome patient population. J Med Genet. 2010 Jul; 47(7):453-63.
        View in: PubMed
      12. Chen Y, Roorda A, Duncan JL. Advances in imaging of Stargardt disease. Adv Exp Med Biol. 2010; 664:333-40.
        View in: PubMed
      13. Sohn EH, Francis PJ, Duncan JL, Weleber RG, Saperstein DA, Farrell DF, Stone EM. Phenotypic variability due to a novel Glu292Lys variation in exon 8 of the BEST1 gene causing best macular dystrophy. Arch Ophthalmol. 2009 Jul; 127(7):913-20.
        View in: PubMed PMC2711525
      14. McGill TJ, Prusky GT, Douglas RM, Yasumura D, Matthes MT, Nune G, Donohue-Rolfe K, Yang H, Niculescu D, Hauswirth WW, Girman SV, Lund RD, Duncan JL, LaVail MM. Intraocular CNTF reduces vision in normal rats in a dose-dependent manner. Invest Ophthalmol Vis Sci. 2007 Dec; 48(12):5756-66.
        View in: PubMed
      15. Roorda A, Zhang Y, Duncan JL. High-resolution in vivo imaging of the RPE mosaic in eyes with retinal disease. Invest Ophthalmol Vis Sci. 2007 May; 48(5):2297-303.
        View in: PubMed
      16. Rhee KD, Ruiz A, Duncan JL, Hauswirth WW, Lavail MM, Bok D, Yang XJ. Molecular and cellular alterations induced by sustained expression of ciliary neurotrophic factor in a mouse model of retinitis pigmentosa. Invest Ophthalmol Vis Sci. 2007 Mar; 48(3):1389-400.
        View in: PubMed
      17. Brown DM, Thorne JE, Foster GL, Duncan JL, Brune LM, Muñana A, Meinert CL, Jabs DA. Factors affecting attrition in a longitudinal study of patients with AIDS. AIDS Care. 2006 Oct; 18(7):821-9.
        View in: PubMed
      18. Duncan JL. Mouse models may provide new insight into the relation between cholesterol and age related macular degeneration. Br J Ophthalmol. 2005 Dec; 89(12):1549-51.
        View in: PubMed PMC1772982
      19. Bok D, Yasumura D, Matthes MT, Ruiz A, Duncan JL, Chappelow AV, Zolutukhin S, Hauswirth W, LaVail MM. Effects of adeno-associated virus-vectored ciliary neurotrophic factor on retinal structure and function in mice with a P216L rds/peripherin mutation. Exp Eye Res. 2002 Jun; 74(6):719-35.
        View in: PubMed
      20. Duncan JL, Aleman TS, Gardner LM, De Castro E, Marks DA, Emmons JM, Bieber ML, Steinberg JD, Bennett J, Stone EM, MacDonald IM, Cideciyan AV, Maguire MG, Jacobson SG. Macular pigment and lutein supplementation in choroideremia. Exp Eye Res. 2002 Mar; 74(3):371-81.
        View in: PubMed
      21. Vollrath D, Feng W, Duncan JL, Yasumura D, D'Cruz PM, Chappelow A, Matthes MT, Kay MA, LaVail MM. Correction of the retinal dystrophy phenotype of the RCS rat by viral gene transfer of Mertk. Proc Natl Acad Sci U S A. 2001 Oct 23; 98(22):12584-9.
        View in: PubMed PMC60097
      22. Aleman TS, Duncan JL, Bieber ML, de Castro E, Marks DA, Gardner LM, Steinberg JD, Cideciyan AV, Maguire MG, Jacobson SG. Macular pigment and lutein supplementation in retinitis pigmentosa and Usher syndrome. Invest Ophthalmol Vis Sci. 2001 Jul; 42(8):1873-81.
        View in: PubMed
      23. Slaughter JL, Harrington MA, Peroutka SJ. 6-substituted tricyclic partial ergoline compounds are selective and potent 5-hydroxytryptamine1A receptor agents. Life Sci. 1990; 47(15):1331-7.
        View in: PubMed
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