World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
96
Citations
31804
World Ranking
9726
National Ranking
111

Jan Fahrenkrug 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 Jan Fahrenkrug 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: 610 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: 485 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

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

Jan Fahrenkrug 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 Jan Fahrenkrug 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: 399 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: 96 D-Index — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Overview

Jan Fahrenkrug is affiliated with the University of Copenhagen in Denmark. Their research spans several interconnected disciplines including Neuroscience, Medicine, and Biochemistry, Genetics and Molecular Biology. Their work emphasizes studies on circadian rhythms, neuropeptides, neuroendocrine regulation, and molecular aspects of disease processes.

The scientist's recent publications reveal focus areas and collaborative endeavors. Notable papers include:

  • Circadian regulation of protein cargo in extracellular vesicles (2022) published in Science Advances
  • Evaluation of Serum Insulin-like Factor 3 Quantification by LC-MS/MS as a Biomarker of Leydig Cell Function. (2020) published in The Journal of Clinical Endocrinology & Metabolism
  • Circadian variations in plasma concentrations of cholecystokinin and gastrin in man (2020) published in Scandinavian Journal of Clinical and Laboratory Investigation
  • Altered light induced EGR1 expression in the SCN of PACAP deficient mice (2020) published in PLoS ONE
  • The Circadian Clock Is Sustained in the Thyroid Gland of VIP Receptor 2 Deficient Mice (2021) published in Frontiers in Endocrinology

Frequent co-authors collaborating with Jan Fahrenkrug include:

  • Birgitte Georg
  • Jens Hannibal
  • Henrik L. Jørgensen
  • Henriette P. Sennels
  • Ching-Yan Chloé Yeung

Jan Fahrenkrug's research is regularly published in scientific venues such as Science Advances, The Journal of Clinical Endocrinology & Metabolism, Scandinavian Journal of Clinical and Laboratory Investigation, PLoS ONE, and Frontiers in Endocrinology.

Their scientific contributions cover main fields and subfields including:

  • Neuroscience
  • Medicine
  • Biochemistry, Genetics and Molecular Biology
  • Endocrine and Autonomic Systems
  • Cellular and Molecular Neuroscience
  • Molecular Biology
  • Endocrinology, Diabetes and Metabolism
  • Social Psychology

The principal topics explored in their body of work are:

  • Circadian rhythm and melatonin
  • Neuropeptides and Animal Physiology
  • Neuroendocrine regulation and behavior
  • Extracellular vesicles in disease
  • Heat shock proteins research
  • Endoplasmic Reticulum Stress and Disease
  • Pregnancy-related medical research

Best Publications

  • Primary sensory neurons of the rat showing calcitonin gene-related peptide immunoreactivity and their relation to substance P-, somatostatin-, galanin-, vasoactive intestinal polypeptide- and cholecystokinin-immunoreactive ganglion cells.

    G. Ju;Tomas Hökfelt;E. Brodin;J. Fahrenkrug

  • Localization of vasoactive intestinal polypeptide (VIP) to central and peripheral neurons

    L I Larsson;J Fahrenkrug;O Schaffalitzky De Muckadell;F Sundler

  • Distribution of vasoactive intestinal polypeptide in the rat and mouse brain

    I. Lorén;P.C. Emson;J. Fahrenkrug;A. Björklund

  • Vasoactive intestinal polypeptide in cholinergic neurons of exocrine glands: Functional significance of coexisting transmitters for vasodilation and secretion

    Jan M. Lundberg;Anders Änggärd;Jan Fahrenkrug;Tomas Hökfelt

  • Pharmacology and functions of receptors for vasoactive intestinal peptide and pituitary adenylate cyclase-activating polypeptide: IUPHAR review 1.

    Anthony J Harmar;Jan Fahrenkrug;Illana Gozes;Marc Laburthe

  • Neuropeptide expression in rat dorsal root ganglion cells and spinal cord after peripheral nerve injury with special reference to galanin.

    M.J. Villar;R. Cortés;E. Theodorsson;Z. Wiesenfeld-Hallin

  • Vasoactive Intestinal Polypeptide: Measurement, Distribution and Putative Neurotransmitter Function

    Jan Fahrenkrug

  • Immunohistochemical localization of a vasodilatory polypeptide (VIP) in cerebrovascular nerves.

    L.-I. Larsson;L.-I. Larsson;L. Edvinsson;L. Edvinsson;J. Fahrenkrug;J. Fahrenkrug;R. Håkanson;R. Håkanson

  • The photopigment melanopsin is exclusively present in pituitary adenylate cyclase-activating polypeptide-containing retinal ganglion cells of the retinohypothalamic tract.

    Jens Hannibal;Peter Hindersson;Sanne M. Knudsen;Birgitte Georg

  • Radioimmunoassay of vasoactive intestinal polypeptide (VIP) in plasma.

    J. Fahrenkrug;O. B. Schaffalitzky De Muckadell

  • Co-existence of peptide HI (PHI) and VIP in nerves regulating blood flow and bronchial smooth muscle tone in various mammals including man.

    Jan M. Lundberg;Jan Fahrenkrug;Tomas Hökfelt;Claes-Roland Martling

  • Pituitary Adenylate Cyclase-Activating Peptide (PACAP) in the Retinohypothalamic Tract: A Potential Daytime Regulator of the Biological Clock

    Jens Hannibal;Jian M. Ding;Dong Chen;Jan Fahrenkrug

  • Distribution of vasoactive intestinal polypeptide (VIP) in the porcine central nervous system.

    J Fahrenkrug;O B Schaffalitzky de Muckadell

  • Vasoactive Intestinal Polypeptide

    Jan Fahrenkrug

  • Vasoactive intestinal peptide causes marked cephalic vasodilation, but does not induce migraine.

    A Rahmann;A Rahmann;T Wienecke;JM Hansen;J Fahrenkrug

  • Influence of the autonomic nervous system on the release of vasoactive intestinal polypeptide from the porcine gastrointestinal tract.

    J Fahrenkrug;H Galbo;J J Holst;O B Schaffalitzky de Muckadell

  • PACAP and glutamate are co-stored in the retinohypothalamic tract.

    Jens Hannibal;Jens Hannibal;Morten Moller;Ole Petter Ottersen;Jan Fahrenkrug

  • Investigation of the pathophysiological mechanisms of migraine attacks induced by pituitary adenylate cyclase-activating polypeptide-38

    Faisal Mohammad Amin;Anders Hougaard;Henrik W. Schytz;Mohammad S. Asghar

  • Melanopsin Is Expressed in PACAP-Containing Retinal Ganglion Cells of the Human Retinohypothalamic Tract

    Jens Hannibal;Peter Hindersson;Jens Østergaard;Jens Østergaard;Birgitte Georg

  • The PHI (PHI-27)/corticotropin-releasing factor/enkephalin immunoreactive hypothalamic neuron: possible morphological basis for integrated control of prolactin, corticotropin, and growth hormone secretion

    T Hökfelt;J Fahrenkrug;K Tatemoto;V Mutt

Frequent Co-Authors

Jens Hannibal
Jens Hannibal University of Copenhagen
Tomas Hökfelt
Tomas Hökfelt Karolinska Institute
Frank Sundler
Frank Sundler Lund University
Jan M. Lundberg
Jan M. Lundberg Karolinska Institute
Jens D. Mikkelsen
Jens D. Mikkelsen University of Copenhagen
Jens J. Holst
Jens J. Holst University of Copenhagen
Piers C. Emson
Piers C. Emson Babraham Institute
Morten Møller
Morten Møller University of Copenhagen
Jes Olesen
Jes Olesen University of Copenhagen
Messoud Ashina
Messoud Ashina University of Copenhagen

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