World's Best Scientists 2026 revealed!
Curtis D. Klaassen

Curtis D. Klaassen

D-Index & Metrics

Medicine

D-Index
135
Citations
59193
World Ranking
2084
National Ranking
1180

Curtis D. Klaassen 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 Curtis D. Klaassen 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: 797 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

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

Curtis D. Klaassen 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 Curtis D. Klaassen 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: 135 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Overview

Curtis D. Klaassen is affiliated with the University of Kansas in the United States. Their research encompasses multiple areas within medicine and environmental science, with a particular focus on dermatology, health toxicology, mutagenesis, plant science, food science, and oncology.

Their work includes numerous studies on the effects and risks of endocrine-disrupting chemicals and contact dermatitis and allergies. Other notable topics covered in their research include pesticide exposure and toxicity, agricultural safety and regulations, drug transport and resistance mechanisms, polymer science related to PVC, and carcinogens with genotoxicity assessment.

Frequently publishing in specialized scientific journals, Klaassen has contributed extensively to the following venues:

  • International Journal of Toxicology
  • Drug Metabolism and Disposition
  • PubMed
  • Toxicology and Applied Pharmacology
  • Xenobiotica

Their recent papers illustrate the breadth of their research interests, including:

  • Amended Safety Assessment of Parabens as Used in Cosmetics (2020, International Journal of Toxicology)
  • Molecular Regulation of Bile Acid Homeostasis (2021, Drug Metabolism and Disposition)
  • Expression of cytochrome P450 isozyme transcripts and activities in human livers (2020, Xenobiotica)
  • Suppressed farnesoid X receptor by iron overload in mice and humans potentiates iron-induced hepatotoxicity (2021, Hepatology)
  • Safety Assessment of Lecithin and Other Phosphoglycerides as Used in Cosmetics (2020, International Journal of Toxicology)

Klaassen collaborates frequently with several researchers in the field, including:

  • D. Belsito
  • Bart Heldreth
  • Wilma F. Bergfeld
  • Thomas J. Slaga
  • Paul W. Snyder

Their main contributions focus on interdisciplinary approaches blending toxicology, pharmacology, and environmental impacts on human health. Klaassen's work captures significant themes such as chemical safety in cosmetic products and fundamental biological processes like bile acid regulation and liver enzyme expression.

Best Publications

  • The nuclear receptor PXR is a lithocholic acid sensor that protects against liver toxicity

    Jeffrey Leonard Staudinger;Jeffrey Leonard Staudinger;Bryan Goodwin;Stacey A. Jones;Diane Hawkins-Brown

  • Sulfation and sulfotransferases 5: the importance of 3'-phosphoadenosine 5'-phosphosulfate (PAPS) in the regulation of sulfation.

    Curtis D. Klaassen;James W. Boles

  • Toxicology of cadmium

    P. L. Goering;M. P. Waalkes;C. D. Klaassen

  • Cadmium-induced hepatic and renal injury in chronically exposed rats: Likely role of hepatic cadmium-metallothionein in nephrotoxicity

    Robert E. Dudley;Lynda M. Gammal;Curtis D. Klaassen

  • Cadmium-Induced Apoptosis in Mouse Liver

    Sultan S.M. Habeebu;Jie Liu;Curtis D. Klaassen

  • Oxidative and electrophilic stress induces multidrug resistance–associated protein transporters via the nuclear factor‐E2–related factor‐2 transcriptional pathway

    Jonathan M. Maher;Matthew Z. Dieter;Lauren M. Aleksunes;Angela L. Slitt;Angela L. Slitt

  • Introducing the "TCDD-inducible AhR-Nrf2 gene battery".

    Ronnie L. Yeager;Scott A. Reisman;Lauren M. Aleksunes;Curtis D. Klaassen

  • Coordinate Regulation of Xenobiotic and Bile Acid Homeostasis by Pregnane X Receptor

    Jeff Staudinger;Yaping Liu;Ajay Madan;Sultan Habeebu

  • Quantitative-profiling of bile acids and their conjugates in mouse liver, bile, plasma, and urine using LC-MS/MS

    Yazen Alnouti;Iván L. Csanaky;Curtis D. Klaassen

  • Beneficial role of Nrf2 in regulating NADPH generation and consumption.

    Kai Connie Wu;Julia Yue Cui;Curtis D. Klaassen

  • Increase in metallothionein produced by chemicals that induce oxidative stress.

    J.W. Bauman;J. Liu;Y.P. Liu;C.D. Klaassen

  • Coordinated regulation of hepatic phase I and II drug-metabolizing genes and transporters using AhR-, CAR-, PXR-, PPARα-, and Nrf2-null mice

    Lauren M. Aleksunes;Curtis D. Klaassen

  • Induction of the multidrug resistance-associated protein family of transporters by chemical activators of receptor-mediated pathways in mouse liver.

    Jonathan M. Maher;Xingguo Cheng;Angela L. Slitt;Matthew Z. Dieter

  • Protective effect of metallothionein against the toxicity of cadmium and other metals(1).

    Jung D Park;Yaping Liu;Curtis D Klaassen

  • Organ distribution of multidrug resistance proteins 1, 2, and 3 (Mrp1, 2, and 3) mRNA and hepatic induction of Mrp3 by constitutive androstane receptor activators in rats.

    Nathan J. Cherrington;Dylan P. Hartley;Ning Li;David R. Johnson

  • NF-E2-Related Factor 2 Inhibits Lipid Accumulation and Oxidative Stress in Mice Fed a High-Fat Diet

    Yuji Tanaka;Lauren M. Aleksunes;Ronnie L. Yeager;Maxwell A. Gyamfi

  • Tissue distribution and ontogeny of sulfotransferase enzymes in mice

    Yazen Alnouti;Curtis D. Klaassen

  • Intestinal absorption of cadmium is associated with divalent metal transporter 1 in rats.

    Jung D. Park;Nathan J. Cherrington;Curtis D. Klaassen

  • Tissue mRNA expression of the rat UDP-glucuronosyltransferase gene family.

    M. K. Shelby;N. J. Cherrington;N. R. Vansell;N. R. Vansell;Curtis D. Klaassen

  • Gender-specific and developmental influences on the expression of rat organic anion transporters.

    Susan C. N. Buist;Nathan J. Cherrington;Supratim Choudhuri;Dylan P. Hartley

Frequent Co-Authors

Lauren M. Aleksunes
Lauren M. Aleksunes Rutgers, The State University of New Jersey
daniel c liebler
daniel c liebler Vanderbilt University
Thomas J. Slaga
Thomas J. Slaga The University of Texas Health Science Center at San Antonio
Michael P. Waalkes
Michael P. Waalkes National Institutes of Health
Jie Liu
Jie Liu National Institutes of Health
Glen K. Andrews
Glen K. Andrews University of Kansas
Yu-Jui Yvonne Wan
Yu-Jui Yvonne Wan University of California, Davis
George L. Scheffer
George L. Scheffer VU University Medical Center
Frank J. Gonzalez
Frank J. Gonzalez National Institutes of Health
Andrew Parkinson
Andrew Parkinson University of Kansas

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