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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Neuroscience 69 2655 2428 1249 1122 311 15432

Ilo E. Leppik publications per year

The chart shows the history of publications by Ilo E. Leppik between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ilo E. Leppik published across 61 years, from 1965 to 2025, averaging 5.3 papers a year. Output peaked at 16 publications in 2006. 4 of the 321 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2006. 1965: 2 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 2 publications 1976: 4 publications 1977: 3 publications 1978: 5 publications 1979: 7 publications 1980: 3 publications 1981: 3 publications 1982: 6 publications 1983: 8 publications 1984: 4 publications 1985: 4 publications 1986: 4 publications 1987: 11 publications 1988: 11 publications 1989: 10 publications 1990: 10 publications 1991: 6 publications 1992: 2 publications 1993: 9 publications 1994: 8 publications 1995: 11 publications 1996: 4 publications 1997: 5 publications 1998: 9 publications 1999: 5 publications 2000: 6 publications 2001: 10 publications 2002: 11 publications 2003: 14 publications 2004: 6 publications 2005: 8 publications 2006: 16 publications 2007: 7 publications 2008: 6 publications 2009: 5 publications 2010: 6 publications 2011: 4 publications 2012: 7 publications 2013: 7 publications 2014: 3 publications 2015: 9 publications 2016: 3 publications 2017: 9 publications 2018: 6 publications 2019: 5 publications 2020: 2 publications 2021: 2 publications 2022: 5 publications 2023: 4 publications 2024: 0 publications 2025: 4 publications
1965 2025

321 publications in total across all disciplines

View publications per year as a table
Ilo E. Leppik: publications per year, 1965 to 2025
Year Publications
1965 2
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 2
1976 4
1977 3
1978 5
1979 7
1980 3
1981 3
1982 6
1983 8
1984 4
1985 4
1986 4
1987 11
1988 11
1989 10
1990 10
1991 6
1992 2
1993 9
1994 8
1995 11
1996 4
1997 5
1998 9
1999 5
2000 6
2001 10
2002 11
2003 14
2004 6
2005 8
2006 16
2007 7
2008 6
2009 5
2010 6
2011 4
2012 7
2013 7
2014 3
2015 9
2016 3
2017 9
2018 6
2019 5
2020 2
2021 2
2022 5
2023 4
2024 0
2025 4
Total 321
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Ilo E. Leppik publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Ilo E. Leppik sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 86 bars. Horizontal axis: publications, 38–47 to 887+. Vertical axis: number of scientists, 0 to 539. Most scientists, 539, have 98–107 publications. The last bar groups every scientist with 887 publications or more. The highlighted bar, 308–317 publications, is where this scientist sits. 38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientist 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38–47 publications 887+

This scientist: 311 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

View publications distribution as a table
Number of Neuroscience scientists by publication count, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
Publications Scientists This scientist
38–47 18
48–57 79
58–67 193
68–77 323
78–87 406
88–97 452
98–107 539
108–117 505
118–127 522
128–137 469
138–147 456
148–157 459
158–167 397
168–177 383
178–187 350
188–197 302
198–207 306
208–217 262
218–227 242
228–237 220
238–247 203
248–257 174
258–267 176
268–277 175
278–287 125
288–297 116
298–307 127
308–317 128 311
318–327 99
328–337 89
338–347 78
348–357 96
358–367 66
368–377 59
378–387 65
388–397 54
398–407 48
408–417 49
418–427 34
428–437 31
438–447 30
448–457 31
458–467 36
468–477 40
478–487 35
488–497 30
498–507 23
508–517 26
518–527 20
528–537 23
538–547 20
548–557 20
558–567 17
568–577 14
578–587 20
588–597 20
598–607 19
608–617 18
618–627 17
628–637 11
638–647 11
648–657 11
658–667 8
668–677 7
678–687 11
688–697 10
698–707 4
708–717 6
718–727 5
728–737 5
738–747 9
748–757 9
758–767 3
768–777 7
778–787 7
788–797 6
798–807 2
808–817 2
818–827 7
828–837 0
838–847 9
848–857 3
858–867 1
868–877 3
878–886 6
887+ 100
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Ilo E. Leppik D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where Ilo E. Leppik sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 68 bars. Horizontal axis: D-Index, 30–31 to 163+. Vertical axis: number of scientists, 0 to 512. Most scientists, 512, have 46–47 D-Index. The last bar groups every scientist with 163 D-Index or more. The highlighted bar, 68–69 D-Index, is where this scientist sits. 30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30–31 D-Index 163+

This scientist: 69 D-Index — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

View D-Index distribution as a table
Number of Neuroscience scientists by D-index, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
D-Index Scientists This scientist
30–31 42
32–33 172
34–35 296
36–37 435
38–39 459
40–41 456
42–43 467
44–45 478
46–47 512
48–49 435
50–51 425
52–53 418
54–55 392
56–57 357
58–59 334
60–61 328
62–63 260
64–65 278
66–67 239
68–69 250 69
70–71 210
72–73 200
74–75 189
76–77 170
78–79 146
80–81 113
82–83 126
84–85 100
86–87 84
88–89 99
90–91 84
92–93 85
94–95 72
96–97 76
98–99 45
100–101 49
102–103 43
104–105 32
106–107 45
108–109 50
110–111 32
112–113 39
114–115 32
116–117 29
118–119 27
120–121 19
122–123 23
124–125 27
126–127 16
128–129 24
130–131 13
132–133 21
134–135 17
136–137 14
138–139 15
140–141 10
142–143 10
144–145 13
146–147 9
148–149 8
150–151 6
152–153 6
154–155 7
156–157 7
158–159 10
160–161 4
162 8
163+ 100
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Overview

Ilo E. Leppik is affiliated with the University of Minnesota in the United States and has a research focus primarily in the fields of medicine and neuroscience. Their extensive work covers multiple subfields including psychiatry and mental health, pediatrics, perinatology and child health, cellular and molecular neuroscience, pharmacology, and cognitive neuroscience.

Their research contributions encompass a broad range of topics centered on epilepsy research and treatment, pharmacological effects and toxicity studies, neuroscience and neuropharmacology research, antibiotics pharmacokinetics and efficacy, EEG and brain-computer interfaces, drug transport and resistance mechanisms, as well as schizophrenia research and treatment.

Recent notable papers authored or co-authored by Leppik include:

  • The epidemiology of epilepsy in older adults: A narrative review by the ILAE Task Force on Epilepsy in the Elderly (2023, Epilepsia)
  • Management of epilepsy in older adults: A critical review by the ILAE Task Force on Epilepsy in the elderly (2022, Epilepsia)
  • Severity of Topiramate-Related Working Memory Impairment Is Modulated by Plasma Concentration and Working Memory Capacity (2020, The Journal of Clinical Pharmacology)
  • Intravenous and Intramuscular Allopregnanolone for Early Treatment of Status Epilepticus: Pharmacokinetics, Pharmacodynamics, and Safety in Dogs (2021, Journal of Pharmacology and Experimental Therapeutics)
  • New Onset (Incidence) of Epilepsy and Seizures in Nursing Home Residents (2022, Journal of the American Medical Directors Association)

Leppik frequently publishes in several journals, with the most common venues being:

  • Epilepsia
  • Journal of the American Medical Directors Association
  • Neurology
  • The Journal of Clinical Pharmacology
  • Current Opinion in Neurology

Key collaborators frequently working alongside Leppik include Angela K. Birnbaum, Patrick Kwan, Rebecca O'Dwyer, Susan E. Marino, and Robert Wechsler. These co-authors have contributed collectively to multiple projects spanning epilepsy and pharmacological research.

Leppik's research methodology often integrates clinical and pharmacological approaches to better understand neurological disorders and treatment effects. The work spans both adult and pediatric populations, with particular attention given to epilepsy in elderly populations and the pharmacokinetic factors influencing drug efficacy and side effects.

Best Publications

  • Antiepileptic drugs—best practice guidelines for therapeutic drug monitoring: A position paper by the subcommission on therapeutic drug monitoring, ILAE Commission on Therapeutic Strategies

    Philip N. Patsalos;David J. Berry;Blaise F. D. Bourgeois;James C. Cloyd

  • Levetiracetam for partial seizures Results of a double-blind, randomized clinical trial

    Cereghino Jj;Biton;Abou-Khalil B;Dreifuss F

  • Incidence and risk factors in sudden unexpected death in epilepsy: A prospective cohort study

    Thaddeus S. Walczak;I. E. Leppik;M. D'Amelio;J. Rarick

  • Double-blind study of lorazepam and diazepam in status epilepticus.

    Ilo E Leppik;A. T. Derivan;R. W. Homan;J. Walker

  • Lamotrigine clearance during pregnancy

    T. A. Tran;I. E. Leppik;K. Blesi;S. T. Sathanandan

  • Randomized controlled trial of zonisamide for the treatment of refractory partial-onset seizures.

    E. Faught;R. Ayala;G. G. Montouris;I. E. Leppik

  • Gabapentin as add-on therapy in refractory partial epilepsy: A double-blind, placebo-controlled, parallel-group study

    Michael J. McLean;R. E. Ramsay;Ilo E Leppik;A. J. Rowan

  • Hyponatremia from oxcarbazepine and carbamazepine

    Xiaoming Dong;Ilo E. Leppik;James White;John Rarick

  • Felbamate for partial seizures: results of a controlled clinical trial.

    I. E. Leppik;F. E. Dreifuss;G. W. Pledger;N. M. Graves

  • Intravenous phenytoin: Clinical and pharmacokinetic aspects

    Ronald E. Cranford;Ilo E. Leppik;Barbara Patrick;Charles B. Anderson

  • Antiepileptic drug development

    Jacqueline A. French;Marc A. Dichter;Ilo E. Leppik

  • Discontinuation of levetiracetam because of behavioral side effects A case-control study

    J. R. White;T. S. Walczak;I. E. Leppik;J. Rarick

  • Efficacy and safety of zonisamide: results of a multicenter study

    Ilo E Leppik;L. J. Willmore;R. W. Homan;G. Fromm

  • Neurologic prognosis after cardiopulmonary arrest III. Seizure activity

    B. D. Snyder;W. A. Hauser;R. B. Loewenson;I. E. Leppik

  • Felbamate A double‐blind controlled trial in patients undergoing presurgical evaluation of partial seizures

    Bourgeois Bourgeois;I. E. Leppik;J. C. Sackellares;K. Laxer

  • Tiagabine for Complex Partial Seizures: A Randomized, Add-on, Dose-Response Trial

    Basim M. Uthman;A. James Rowan;Peter A. Ahmann;Ilo E. Leppik

  • Salivary levels of anticonvulsants: A practical approach to drug monitoring

    John J. McAULIFFE;Allan L. Sherwin;Ilo E. Leppik;Shirley A. Fayle

  • COST OF REFRACTORY EPILEPSY IN ADULTS IN THE USA

    Miranda I. Murray;Michael T. Halpern;Ilo E. Leppik

  • Bilateral central macrogyria: epilepsy, pseudobulbar palsy, and mental retardation--a recognizable neuronal migration disorder.

    Ruben Kuzniecky;Frederick Andermann;Donatella Tampieri;Denis Melanson

  • Epilepsy in the elderly.

    Ilo E. Leppik

  • Three new drugs for epilepsy: levetiracetam, oxcarbazepine, and zonisamide.

    Ilo E. Leppik

  • Gabapentin as add-on therapy in refractory partial epilepsy

    Michael J. McLean;R. E. Ramsay;Ilo E Leppik;A. J. Rowan

Frequent Co-Authors

Jacqueline A. French
Jacqueline A. French New York University
Page B. Pennell
Page B. Pennell University of Pittsburgh
Thaddeus S. Walczak
Thaddeus S. Walczak University of Minnesota
Steven C. Schachter
Steven C. Schachter Beth Israel Deaconess Medical Center
Edward Faught
Edward Faught Emory University
Gregory K. Bergey
Gregory K. Bergey Johns Hopkins University School of Medicine
Basim M. Uthman
Basim M. Uthman Weill Cornell Medical College in Qatar
John M. Pellock
John M. Pellock Virginia Commonwealth University
Fritz E. Dreifuss
Fritz E. Dreifuss University of Virginia
Stephen S. Rich
Stephen S. Rich University of Virginia

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