World's Best Scientists 2026 revealed!
Keith A. Sharkey

Keith A. Sharkey

D-Index & Metrics

Medicine

D-Index
94
Citations
30182
World Ranking
10533
National Ranking
423

Keith A. Sharkey 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 Keith A. Sharkey 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: 403 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

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

Keith A. Sharkey 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 Keith A. Sharkey 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: 94 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Keith A. Sharkey is affiliated with the University of Calgary in Canada and has a primary research focus spanning medicine and neuroscience. Their work covers a variety of specialized subfields including gastroenterology, molecular biology, physiology, pharmacology, and neurology.

The scientist's research interests concentrate significantly on gastrointestinal motility and disorders, gut microbiota and health, cannabis and cannabinoid research, diet and metabolism studies, tryptophan and brain disorders, stress responses and cortisol, and congenital gastrointestinal and neural anomalies.

Notable recent publications authored or coauthored by Keith A. Sharkey include:

  • "Intestinal microbiota shapes gut physiology and regulates enteric neurons and glia" (2021) published in Microbiome
  • "The enteric nervous system" (2022) published in Physiological Reviews
  • "Intestinal fungi are causally implicated in microbiome assembly and immune development in mice" (2020) published in Nature Communications
  • "A monocyte-leptin-angiogenesis pathway critical for repair post-infection" (2022) published in Nature
  • "In vivo endocannabinoid dynamics at the timescale of physiological and pathological neural activity" (2021) published in Neuron

Frequent coauthors who have collaborated extensively with Sharkey include:

  • Fernando Vicentini
  • Catherine M. Keenan
  • Simon A. Hirota
  • Mark G. Swain
  • Laurie E. Wallace

Sharkey's work is frequently published in scientific venues such as the Journal of the Canadian Association of Gastroenterology, American Journal of Physiology-Gastrointestinal and Liver Physiology, Cannabis and Cannabinoid Research, Brain Behavior and Immunity, and bioRxiv (Cold Spring Harbor Laboratory).

Best Publications

  • Identification and Functional Characterization of Brainstem Cannabinoid CB2 Receptors

    Marja D. Van Sickle;Marnie Duncan;Philip J. Kingsley;Abdeslam Mouihate

  • Molecular defects in mucosal serotonin content and decreased serotonin reuptake transporter in ulcerative colitis and irritable bowel syndrome

    Matthew D. Coates;Christine R. Mahoney;David R. Linden;Joanna E. Sampson

  • Endocannabinoid signaling at the periphery: 50 years after THC

    Mauro Maccarrone;Itai Bab;Tamás Bíró;Guy A. Cabral

  • Role for protease activity in visceral pain in irritable bowel syndrome.

    Nicolas Cenac;Christopher N. Andrews;Marinella Holzhausen;Kevin Chapman

  • Recurrent aphthous ulcers today: a review of the growing knowledge

    S.S. Natah;S.S. Natah;Y.T. Konttinen;N.S. Enattah;N. Ashammakhi

  • Proteinase-activated receptor-2 and hyperalgesia: A novel pain pathway.

    N. Vergnolle;N.W. Bunnett;K.A. Sharkey;V. Brussee

  • Exacerbation of inflammation-associated colonic injury in rat through inhibition of cyclooxygenase-2.

    Brian K. Reuter;Samuel Asfaha;André Buret;Keith A. Sharkey

  • Cannabinoids and the Gut: New Developments and Emerging Concepts

    Angelo A. Izzo;Keith A. Sharkey

  • Activation of neuronal P2X7 receptor-pannexin-1 mediates death of enteric neurons during colitis.

    Brian D Gulbransen;Mohammad Bashashati;Simon A Hirota;Xianyong Gui

  • Microglial activation and TNFα production mediate altered CNS excitability following peripheral inflammation

    Kiarash Riazi;Michael A. Galic;J. Brent Kuzmiski;Winnie Ho

  • Cyclooxygenase 1 Contributes to Inflammatory Responses in Rats and Mice: Implications for Gastrointestinal Toxicity

    John L. Wallace;Adrian Bak;Webb McKnight;Samuel Asfaha

  • Novel functional roles for enteric glia in the gastrointestinal tract

    Brian D. Gulbransen;Keith A. Sharkey

  • Inducible nitric oxide synthase-deficient mice have enhanced leukocyte-endothelium interactions in endotoxemia.

    Michael J. Hickey;Keith A Sharkey;Elaine G. Sihota;Paul H. Reinhardt

  • Serotonin availability is increased in mucosa of guinea pigs with TNBS-induced colitis.

    David R. Linden;Jing Xian Chen;Michael D. Gershon;Keith A. Sharkey

  • Cannabinoid CB2 receptors in the gastrointestinal tract : a regulatory system in states of inflammation

    K L Wright;M Duncan;K A Sharkey

  • Inflammatory neuropathies of the enteric nervous system.

    Roberto De Giorgio;Stefania Guerrini;Giovanni Barbara;Vincenzo Stanghellini

  • Activation of colonic mucosal 5-HT(4) receptors accelerates propulsive motility and inhibits visceral hypersensitivity.

    Jill M. Hoffman;Karl Tyler;Sarah J. MacEachern;Onesmo B. Balemba

  • Cannabinoids inhibit emesis through CB1 receptors in the brainstem of the ferret

    Marja D. Van Sickle;Lorraine D. Oland;Winnie Ho;Cecilia J. Hillard

  • Sensory substance P innervation of the stomach and pancreas: Demonstration of capsaicin-sensitive sensory neurons in the rat by combined immunohistochemistry and retrograde tracing

    K.A. Sharkey;R.G. Williams;G.J. Dockray

  • Enhanced excitability of myenteric AH neurones in the inflamed guinea‐pig distal colon

    David R. Linden;Keith A. Sharkey;Gary M. Mawe

Frequent Co-Authors

Quentin J. Pittman
Quentin J. Pittman University of Calgary
John L. Wallace
John L. Wallace University of Calgary
Ken Mackie
Ken Mackie Indiana University
Beat Lutz
Beat Lutz Johannes Gutenberg University of Mainz
Derek M. McKay
Derek M. McKay University of Calgary
Alexandros Makriyannis
Alexandros Makriyannis Northeastern University
Nima Rezaei
Nima Rezaei Tehran University of Medical Sciences
Glenda MacQueen
Glenda MacQueen University of Calgary
Benjamin F. Cravatt
Benjamin F. Cravatt Scripps Research Institute
Morley D. Hollenberg
Morley D. Hollenberg University of Calgary

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