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Janet R. Sparrow

D-Index & Metrics

Biology and Biochemistry

D-Index
73
Citations
19830
World Ranking
5915
National Ranking
2798

Janet R. Sparrow publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Janet R. Sparrow sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 316 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Janet R. Sparrow D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Janet R. Sparrow sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 73 D-Index — 71st percentile

71% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Janet R. Sparrow is affiliated with Columbia University in the United States and focuses on research primarily in Medicine as well as Biochemistry, Genetics and Molecular Biology. Their work spans several interconnected fields including Molecular Biology, Ophthalmology, Radiology, Nuclear Medicine and Imaging, Cellular and Molecular Neuroscience, and Biochemistry.

Their main research topics revolve around retinal science, covering aspects such as Retinal Development and Disorders, Retinal Diseases and Treatments, Retinoids in leukemia and cellular processes, Retinal and Optic Conditions, Photoreceptor and optogenetics research, Glaucoma and retinal disorders, and Retinal Imaging and Analysis.

Frequent collaborators in their research include Stephen H. Tsang, José Ronaldo Lima de Carvalho, Jin Kyun Oh, Rait Parmann, and Jin Zhao.

Janet R. Sparrow's work has been published in several prominent scientific venues, with a notable number of contributions to:

  • Investigative Ophthalmology & Visual Science (9 publications)
  • Journal of Biological Chemistry (5 publications)
  • Translational Vision Science & Technology (5 publications)
  • Scientific Reports (4 publications)
  • Experimental Eye Research (3 publications)

Some of their recent papers include:

  • "Fundus autofluorescence imaging," 2020, Progress in Retinal and Eye Research
  • "Intraocular iron injection induces oxidative stress followed by elements of geographic atrophy and sympathetic ophthalmia," 2021, Aging Cell
  • "Effects of deficiency in the RLBP1-encoded visual cycle protein CRALBP on visual dysfunction in humans and mice," 2020, Journal of Biological Chemistry
  • "Bisretinoids of the Retina: Photo-Oxidation, Iron-Catalyzed Oxidation, and Disease Consequences," 2021, Antioxidants
  • "Lutein and zeaxanthin reduce A2E and iso-A2E levels and improve visual performance in Abca4/Bco2 double knockout mice," 2021, Experimental Eye Research

Best Publications

  • The lipofuscin fluorophore A2E mediates blue light-induced damage to retinal pigmented epithelial cells.

    Janet R. Sparrow;Koji Nakanishi;Craig A. Parish

  • RPE lipofuscin and its role in retinal pathobiology.

    Janet R. Sparrow;Mike Boulton

  • Isolation and one-step preparation of A2E and iso-A2E, fluorophores from human retinal pigment epithelium

    Craig A. Parish;Masaru Hashimoto;Koji Nakanishi;James Dillon

  • Complement activation by photooxidation products of A2E, a lipofuscin constituent of the retinal pigment epithelium

    Jilin Zhou;Young Pyo Jang;So Ra Kim;Janet R. Sparrow

  • Involvement of oxidative mechanisms in blue-light-induced damage to A2E-laden RPE.

    Janet R. Sparrow;Jilin Zhou;Shimon Ben-Shabat;Heidi Vollmer

  • A2E, a lipofuscin fluorophore, in human retinal pigmented epithelial cells in culture.

    Janet R. Sparrow;Craig A. Parish;Masaru Hashimoto;Koji Nakanishi

  • The bisretinoids of retinal pigment epithelium.

    Janet R. Sparrow;Emily Gregory-Roberts;Kazunori Yamamoto;Anna Blonska

  • A2E-epoxides Damage DNA in Retinal Pigment Epithelial Cells VITAMIN E AND OTHER ANTIOXIDANTS INHIBIT A2E-EPOXIDE FORMATION

    Janet R. Sparrow;Heidi R. Vollmer-Snarr;Jilin Zhou;Young P. Jang

  • Blue Light–Induced Apoptosis of A2E-Containing RPE: Involvement of Caspase-3 and Protection by Bcl-2

    Janet R. Sparrow;Bolin Cai

  • Serotype-dependent packaging of large genes in adeno-associated viral vectors results in effective gene delivery in mice

    Mariacarmela Allocca;Monica Doria;Marco Petrillo;Pasqualina Colella

  • CD36 participates in the phagocytosis of rod outer segments by retinal pigment epithelium

    Sandra W. Ryeom;Janet R. Sparrow;Roy L. Silverstein

  • Blue light-absorbing intraocular lens and retinal pigment epithelium protection in vitro

    Janet R Sparrow;Ashley S Miller;Jilin Zhou

  • The biosynthesis of A2E, a fluorophore of aging retina, involves the formation of the precursor, A2-PE, in the photoreceptor outer segment membrane.

    Jianghua Liu;Yasuhiro Itagaki;Shimon Ben-Shabat;Koji Nakanishi

  • SOD2 knockdown mouse model of early AMD

    Verline Justilien;Ji-Jing Pang;Kutralanathan Renganathan;Xianquan Zhan

  • Correction of the disease phenotype in the mouse model of Stargardt disease by lentiviral gene therapy.

    J. Kong;S.-R. Kim;K. Binley;I. Pata

  • Phospholipid meets all-trans-retinal: the making of RPE bisretinoids

    Janet R. Sparrow;Yalin Wu;Chul Y. Kim;Jilin Zhou

  • Lutein and zeaxanthin supplementation reduces photooxidative damage and modulates the expression of inflammation-related genes in retinal pigment epithelial cells

    Qingning Bian;Shasha Gao;Shasha Gao;Jilin Zhou;Jian Qin

  • Photooxidation of A2-PE, a photoreceptor outer segment fluorophore, and protection by lutein and zeaxanthin.

    So Ra Kim;Koji Nakanishi;Yasuhiro Itagaki;Janet R. Sparrow

  • Experimental studies of tolerance to intravitreal perfluoro-n-octane liquid.

    Stanley Chang;Janet R. Sparrow;Takeo Iwamoto;Abbey Gershbein

  • Biosynthetic studies of A2E, a major fluorophore of retinal pigment epithelial lipofuscin.

    Shimon Ben-Shabat;Craig A. Parish;Heidi R. Vollmer;Yasuhiro Itagaki

Frequent Co-Authors

Rando Allikmets
Rando Allikmets Columbia University
Koji Nakanishi
Koji Nakanishi Columbia University
Donald C. Hood
Donald C. Hood Columbia University
Steffen Jockusch
Steffen Jockusch Bowling Green State University
Jian Kong
Jian Kong Harvard University
Allen Taylor
Allen Taylor Tufts University
Nicholas J. Turro
Nicholas J. Turro Columbia University
Peter Gouras
Peter Gouras Columbia University
Joshua L. Dunaief
Joshua L. Dunaief University of Pennsylvania
Terry J. Smith
Terry J. Smith University of Michigan–Ann Arbor

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Best Scientists Citing Janet R. Sparrow

Krzysztof Palczewski

Krzysztof Palczewski

University of California, Irvine

Publications: 72

Frank G. Holz

Frank G. Holz

University of Bonn

Publications: 55

José-Alain Sahel

José-Alain Sahel

University of Pittsburgh

Publications: 50

Edwin M. Stone

Edwin M. Stone

University of Iowa

Publications: 44

Christine A. Curcio

Christine A. Curcio

University of Alabama at Birmingham

Publications: 42

Srinivas R. Sadda

Srinivas R. Sadda

University of California, Los Angeles

Publications: 39

Akiko Maeda

Akiko Maeda

Case Western Reserve University

Publications: 39

Frans P.M. Cremers

Frans P.M. Cremers

Radboud University

Publications: 34

Artur V. Cideciyan

Artur V. Cideciyan

University of Pennsylvania

Publications: 33

Carel B. Hoyng

Carel B. Hoyng

Radboud University

Publications: 31

Paul S. Bernstein

Paul S. Bernstein

University of Utah

Publications: 30

Anthony T. Moore

Anthony T. Moore

University of California, San Francisco

Publications: 30

Michael E. Boulton

Michael E. Boulton

University of Alabama at Birmingham

Publications: 30

Rando Allikmets

Rando Allikmets

Columbia University

Publications: 29

Kai Kaarniranta

Kai Kaarniranta

University of Eastern Finland

Publications: 29

Marcin Golczak

Marcin Golczak

Case Western Reserve University

Publications: 29

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