World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
84
Citations
23856
World Ranking
15194
National Ranking
7668

Alfredo A. Sadun publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Alfredo A. Sadun sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 669 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Alfredo A. Sadun D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Alfredo A. Sadun sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 84 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Alfredo A. Sadun is affiliated with the University of California, Los Angeles in the United States. Their research spans multiple domains within the life sciences, with a particular focus on the fields of biochemistry, genetics, and molecular biology, alongside medicine.

The primary areas of study in their work include molecular biology and ophthalmology, supplemented by contributions to radiology, nuclear medicine, imaging, neurology, and clinical biochemistry. This multidisciplinary approach supports investigations into complex biological and clinical questions, especially those related to vision and neurological conditions.

The central themes of Sadun's research cover retinal development and disorders, mitochondrial function and pathology, retinal diseases and treatments, glaucoma and retinal disorders, ATP synthase and ATPases research, photosynthetic processes and mechanisms, as well as retinal imaging and analysis.

Frequent co-authors collaborating with Sadun include Valério Carelli, Patrick Yu-Wai-Man, Valérie Biousse, Mark L. Moster, and Chiara La Morgia. Their published work appears consistently in several peer-reviewed journals. Notable venues featuring their research comprise the Journal of Neuro-Ophthalmology, Acta Ophthalmologica, Neurology, Ophthalmology, and Brain.

Some recent publications authored or co-authored by Sadun highlight advances in gene therapy and eye disease mechanisms:

  • Bilateral visual improvement with unilateral gene therapy injection for Leber hereditary optic neuropathy, 2020, Science Translational Medicine
  • Efficacy and Safety of Intravitreal Gene Therapy for Leber Hereditary Optic Neuropathy Treated within 6 Months of Disease Onset, 2021, Ophthalmology
  • Inhibition of autophagy curtails visual loss in a model of autosomal dominant optic atrophy, 2020, Nature Communications
  • Glaucoma as Neurodegeneration in the Brain, 2021, Eye and Brain
  • Long-Term Follow-Up After Unilateral Intravitreal Gene Therapy for Leber Hereditary Optic Neuropathy: The RESTORE Study, 2020, Journal of Neuro-Ophthalmology

Best Publications

  • Mitochondrial dysfunction as a cause of optic neuropathies

    Valerio Carelli;Fred N. Ross-Cisneros;Alfredo A. Sadun

  • Optic-Nerve Degeneration in Alzheimer's Disease

    David R. Hinton;Alfredo A. Sadun;Janet C. Blanks;Carol A. Miller

  • Treatment of unresectable meningiomas with the antiprogesterone agent mifepristone.

    Steven M. Grunberg;Martin H. Weiss;Irving M. Spitz;Jamshid Ahmadi

  • Optic Nerve Damage in Alzheimer's Disease

    Alfredo A. Sadun;Carl J. Bassi

  • Melanopsin retinal ganglion cell loss in Alzheimer disease

    Chiara La Morgia;Fred N. Ross‐Cisneros;Yosef Koronyo;Jens Hannibal

  • Clinical Expression of Leber Hereditary Optic Neuropathy Is Affected by the Mitochondrial DNA–Haplogroup Background

    Gavin Hudson;Valerio Carelli;Valerio Carelli;Liesbeth Spruijt;Mike Gerards

  • Optic Nerve Decompression Surgery for Nonarteritic Anterior Ischemic Optic Neuropathy (NAION) Is Not Effective and May Be Harmful

    Frank Ischemic;Frank Hooper;David Kaufman;Nancy J. Newman

  • Retinal ganglion cell degeneration in Alzheimer's disease.

    Janet C. Blanks;David R. Hinton;David R. Hinton;Alfredo A. Sadun;Carol A. Miller;Carol A. Miller

  • Efficient mitochondrial biogenesis drives incomplete penetrance in Leber's hereditary optic neuropathy.

    Carla Giordano;Luisa Iommarini;Luca Giordano;Alessandra Maresca

  • Optic nerve degeneration and mitochondrial dysfunction: genetic and acquired optic neuropathies.

    Valerio Carelli;Fred N. Ross-Cisneros;Alfredo A. Sadun

  • Assessment of visual impairment in patients with Alzheimer's disease.

    Alfredo A. Sadun;Mark Borchert;Edward DeVita;David R. Hinton

  • Correlation between retinal nerve fibre layer thickness and optic nerve head size: an optical coherence tomography study

    Giacomo Savini;M. Zanini;V. Carelli;A. A. Sadun

  • Retinal ganglion cell neurodegeneration in mitochondrial inherited disorders

    Valerio Carelli;Chiara La Morgia;Maria Lucia Valentino;Piero Barboni

  • Oestrogens ameliorate mitochondrial dysfunction in Leber’s hereditary optic neuropathy

    Carla Giordano;Monica Montopoli;Elena Perli;Maurizia Orlandi

  • Idebenone treatment in Leber's hereditary optic neuropathy.

    Valerio Carelli;Chiara La Morgia;Maria Lucia Valentino;Giovanni Rizzo

  • Leber's hereditary optic neuropathy differentially affects smaller axons in the optic nerve.

    A A Sadun;P H Win;F N Ross-Cisneros;S O Walker

  • Haplogroup effects and recombination of mitochondrial DNA: novel clues from the analysis of Leber hereditary optic neuropathy pedigrees.

    Valerio Carelli;Valerio Carelli;Alessandro Achilli;Maria Lucia Valentino;Chiara Rengo

  • Mouse mtDNA mutant model of Leber hereditary optic neuropathy

    Chun Shi Lin;Mark S. Sharpley;Mark S. Sharpley;Weiwei Fan;Katrina G. Waymire

  • Natural History of Leber's Hereditary Optic Neuropathy: Longitudinal Analysis of the Retinal Nerve Fiber Layer by Optical Coherence Tomography

    Piero Barboni;Michele Carbonelli;Giacomo Savini;Carolina do V.F. Ramos

  • Age-related decline of human optic nerve axon populations

    Betty M. Johnson;Michael Miao;Alfredo A. Sadun

Frequent Co-Authors

Valerio Carelli
Valerio Carelli University of Bologna
Rubens Belfort
Rubens Belfort Federal University of Sao Paulo
Maria Lucia Valentino
Maria Lucia Valentino University of Bologna
Patrick Yu-Wai-Man
Patrick Yu-Wai-Man University of Cambridge
William R. Freeman
William R. Freeman University of California, San Diego
Jens Hannibal
Jens Hannibal University of Copenhagen
Vincenzo Parisi
Vincenzo Parisi University of Rome Tor Vergata
Carla Giordano
Carla Giordano Sapienza University of Rome
Nancy J. Newman
Nancy J. Newman Emory University
Thomas Klopstock
Thomas Klopstock Ludwig-Maximilians-Universität München

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