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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Neuroscience 54 4973 4571 2228 2013 123 8973

Theo Hagg publications per year

The chart shows the history of publications by Theo Hagg between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Theo Hagg published across 39 years, from 1987 to 2025, averaging 3.2 papers a year. Output peaked at 8 publications in 2005. 3 of the 126 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 1987 to 2025. Vertical axis: number of publications, 0 to 8. Peak 8 publications in 2005. 1987: 1 publication 1988: 3 publications 1989: 5 publications 1990: 2 publications 1991: 3 publications 1992: 5 publications 1993: 5 publications 1994: 4 publications 1995: 0 publications 1996: 2 publications 1997: 3 publications 1998: 3 publications 1999: 4 publications 2000: 5 publications 2001: 1 publication 2002: 3 publications 2003: 4 publications 2004: 2 publications 2005: 8 publications 2006: 4 publications 2007: 6 publications 2008: 4 publications 2009: 4 publications 2010: 1 publication 2011: 7 publications 2012: 6 publications 2013: 5 publications 2014: 2 publications 2015: 1 publication 2016: 3 publications 2017: 3 publications 2018: 1 publication 2019: 4 publications 2020: 4 publications 2021: 2 publications 2022: 3 publications 2023: 0 publications 2024: 1 publication 2025: 2 publications
1987 2025

126 publications in total across all disciplines

View publications per year as a table
Theo Hagg: publications per year, 1987 to 2025
Year Publications
1987 1
1988 3
1989 5
1990 2
1991 3
1992 5
1993 5
1994 4
1995 0
1996 2
1997 3
1998 3
1999 4
2000 5
2001 1
2002 3
2003 4
2004 2
2005 8
2006 4
2007 6
2008 4
2009 4
2010 1
2011 7
2012 6
2013 5
2014 2
2015 1
2016 3
2017 3
2018 1
2019 4
2020 4
2021 2
2022 3
2023 0
2024 1
2025 2
Total 126
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Theo Hagg 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 Theo Hagg 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, 118–127 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: 123 publications — 29th percentile

29% 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
118–127 522 123
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
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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Theo Hagg 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 Theo Hagg 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, 54–55 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: 54 D-Index — 50th percentile

50% 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 54
56–57 357
58–59 334
60–61 328
62–63 260
64–65 278
66–67 239
68–69 250
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

Theo Hagg is affiliated with East Tennessee State University in the United States and has contributed extensively to the fields of neuroscience and biochemistry, genetics, and molecular biology. Their research spans several subfields, including neurology, molecular biology, developmental neuroscience, social psychology, and behavioral neuroscience.

Their scientific work covers diverse topics such as neuroinflammation and neurodegeneration mechanisms, S100 proteins and annexins, neurogenesis and neuroplasticity mechanisms, neuroendocrine regulation and behavior, stress responses and cortisol, cell adhesion molecules research, and olfactory and sensory function studies.

Theo Hagg frequently collaborates with several researchers including Cuihong Jia, Chiharu Lovins, Matthew P. Keasey, W. Drew Gill, and Hannah M. Malone.

Their recent papers include the following:

  • Female-specific neuroprotection after ischemic stroke by vitronectin-focal adhesion kinase inhibition, 2022, Journal of Cerebral Blood Flow & Metabolism
  • Blood Vitronectin Induces Detrimental Brain Interleukin-6 and Correlates With Outcomes After Stroke Only in Female Mice, 2020, Stroke
  • PDIA3 inhibits mitochondrial respiratory function in brain endothelial cells and C. elegans through STAT3 signaling and decreases survival after OGD, 2021, Cell Communication and Signaling
  • Inhibition of focal adhesion kinase increases adult olfactory stem cell self-renewal and neuroregeneration through ciliary neurotrophic factor, 2020, Stem Cell Research
  • Female-specific role of ciliary neurotrophic factor in the medial amygdala in promoting stress responses, 2022, Neurobiology of Stress

Theo Hagg's work is often published in venues such as Stroke, Cell Communication and Signaling, Neurobiology of Stress, Journal of Cerebral Blood Flow & Metabolism, and Stem Cell Research. Among these, the most frequent publication venues include Stroke, Cell Communication and Signaling, and Neurobiology of Stress.

Best Publications

  • Degenerative and spontaneous regenerative processes after spinal cord injury.

    Theo Hagg;Martin Oudega

  • Dopaminergic nigrostriatal projections regulate neural precursor proliferation in the adult mouse subventricular zone.

    Sarah A. Baker;K. Adam Baker;Theo Hagg

  • Delayed treatment with nerve growth factor reverses the apparent loss of cholinergic neurons after acute brain damage.

    Theo Hagg;Marston Manthorpe;H.Lee Vahlsing;Silvio Varon

  • Molecular regulation of adult CNS neurogenesis: an integrated view.

    Theo Hagg

  • Ciliary neurotrophic factor prevents neuronal degeneration and promotes low affinity NGF receptor expression in the adult rat CNS.

    Theo Hagg;Diana Quon;Jeffrey Higaki;Silvio Varon

  • Nerve growth factor (NGF) reverses axotomy-induced decreases in choline acetyltransferase, NGF receptor and size of medial septum cholinergic neurons

    Hagg T;Fass-Holmes B;Vahlsing Hl;Manthorpe M

  • Immunolocalization of ciliary neuronotrophic factor in adult rat sciatic nerve.

    Mario Rende;David Muir;Erkki Ruoslahti;Theo Hagg

  • Survival of Cholinergic Forebrain Neurons in Developing p75NGFR-Deficient Mice

    Unknown

  • Endogenous and exogenous ciliary neurotrophic factor enhances forebrain neurogenesis in adult mice

    J G Emsley;T Hagg;T Hagg

  • Nerve Growth Factor Promotes Regeneration of Sensory Axons into Adult Rat Spinal Cord

    Unknown

  • Ciliary Neurotrophic Factor Mediates Dopamine D2 Receptor-Induced CNS Neurogenesis in Adult Mice

    Peng Yang;Sheila A. Arnold;Agata Habas;Michal Hetman

  • The ADAMs family: Coordinators of nervous system development, plasticity and repair

    Peng Yang;K. Adam Baker;Theo Hagg

  • Laminin-like antigen in rat CNS neurons: Distribution and changes upon brain injury and nerve growth factor treatment

    Theo Hagg;David Muir;Eva Engvall;Silvio Varon

  • Nerve growth factor infusion into the denervated adult rat hippocampal formation promotes its cholinergic reinnervation

    T Hagg;HL Vahlsing;M Manthorpe;S Varon

  • Induction of neurogenesis in the adult rat subventricular zone and neostriatum following dopamine D3 receptor stimulation

    Unknown

  • The etiopathogenesis of Parkinson disease and suggestions for future research. Part II.

    Irene Litvan;Marie Francoise Chesselet;Thomas Gasser;Donato A. Di Monte

  • Neurotrophins promote regeneration of sensory axons in the adult rat spinal cord

    Unknown

  • The localization of nerve growth factor-like immunoreactivity in the adult rat basal forebrain and hippocampal formation.

    J. M. Conner;D. Muir;S. Varon;T. Hagg

  • Griffonia simplicifolia isolectin B4 identifies a specific subpopulation of angiogenic blood vessels following contusive spinal cord injury in the adult mouse.

    Richard L. Benton;Melissa A. Maddie;Danielle R. Minnillo;Theo Hagg

  • α6β1 integrin directs migration of neuronal precursors in adult mouse forebrain

    J.G Emsley;T Hagg;T Hagg

  • Rescuing vasculature with intravenous angiopoietin-1 and αvβ3 integrin peptide is protective after spinal cord injury

    Shu Han;Sheila A. Arnold;Srinivas D. Sithu;Edward T. Mahoney

  • Neurotrophins reduce degeneration of injured ascending sensory and corticospinal motor axons in adult rat spinal cord.

    Faisal T. Sayer;Martin Oudega;Theo Hagg

  • Laminins of the adult mammalian CNS; laminin-α2 (merosin M-) chain immunoreactivity is associated with neuronal processes

    Theo Hagg;Carlos Portera-Cailliau;Mathias Jucker;Eva Engvall

  • Naloxone prevents microglia-induced degeneration of dopaminergic substantia nigra neurons in adult rats.

    X Lu;G Bing;T Hagg

  • From Neurotransmitters to Neurotrophic Factors to Neurogenesis

    Theo Hagg

  • A disintegrin and metalloprotease 21 (ADAM21) is associated with neurogenesis and axonal growth in developing and adult rodent CNS.

    Peng Yang;K. Adam Baker;Theo Hagg

  • A Positive Feedback Loop between Glycogen Synthase Kinase 3β and Protein Phosphatase 1 after Stimulation of NR2B NMDA Receptors in Forebrain Neurons

    Erzsebet Szatmari;Agata Habas;Peng Yang;Jing-Juan Zheng

  • Endogenous CNTF mediates stroke-induced adult CNS neurogenesis in mice.

    Seong Su Kang;Matthew P. Keasey;Sheila A. Arnold;Rollie Reid

  • Laminin-α2 chain-like antigens in CNS dendritic spines

    Min Tian;Theo Hagg;Natalie Denisova;Beat Knusel

Frequent Co-Authors

Scott R. Whittemore
Scott R. Whittemore University of Louisville
Michal Hetman
Michal Hetman University of Louisville
Etienne C. Hirsch
Etienne C. Hirsch Sorbonne University
Günter U. Höglinger
Günter U. Höglinger Ludwig Maximilian University of Munich
Oscar Arias-Carrión
Oscar Arias-Carrión Instituto Nacional de Rehabilitación
Richard E. Brown
Richard E. Brown Dalhousie University
Marie-Françoise Chesselet
Marie-Françoise Chesselet University of California, Los Angeles
Wolfram Tetzlaff
Wolfram Tetzlaff University of British Columbia
Irene Litvan
Irene Litvan University of California, San Diego
Glenda M. Halliday
Glenda M. Halliday University of Sydney

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