World's Best Scientists 2026 revealed!
Christopher L.R. Barratt

Christopher L.R. Barratt

D-Index & Metrics

Biology and Biochemistry

D-Index
72
Citations
13967
World Ranking
6468
National Ranking
494

Christopher L.R. Barratt publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Christopher L.R. Barratt sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 300 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Christopher L.R. Barratt D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Christopher L.R. Barratt sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Christopher L.R. Barratt is affiliated with the University of Dundee in the United Kingdom. Their research primarily focuses on medicine with a specialization in reproductive medicine, addressing key topics such as sperm and testicular function, reproductive biology and fertility, and reproductive health and technologies.

The research topics that Barratt has extensively covered include:

  • Sperm and Testicular Function
  • Reproductive Biology and Fertility
  • Reproductive Health and Technologies
  • Assisted Reproductive Technology and Twin Pregnancy
  • Ovarian Function and Disorders
  • Demographic Trends and Gender Preferences
  • Sexual Differentiation and Disorders

Barratt has contributed publications to several frequent venues such as:

  • Human Reproduction
  • Fertility and Sterility
  • Andrology
  • Reproductive BioMedicine Online
  • bioRxiv (Cold Spring Harbor Laboratory)

Among the notable recent papers Barratt has been associated with are:

  • Distribution of semen examination results 2020 - A follow up of data collated for the WHO semen analysis manual 2010, 2021, Andrology
  • Corrigendum to "Use of an aggregate exposure model to estimate consumer exposure to fragrance ingredients in personal care and cosmetic products" [Regul. Toxicol. Pharmacol. 72 3 (2015) 673-68], 2024, Regulatory Toxicology and Pharmacology
  • Standards in semen examination: publishing reproducible and reliable data based on high-quality methodology, 2022, Human Reproduction
  • Extended semen examinations in the sixth edition of the WHO Laboratory Manual for the Examination and Processing of Human Semen: contributing to the understanding of the function of the male reproductive system, 2022, Fertility and Sterility
  • Frequency, morbidity and equity - the case for increased research on male fertility, 2023, Nature Reviews Urology

Christopher L.R. Barratt has collaborated frequently with several researchers including:

  • Lars Björndahl
  • David Mortimer
  • Juan G. Álvarez
  • José Antonio Castilla
  • Trine B. Haugen

In addition to journal articles, Barratt has authored a book published by Cambridge University Press titled A Practical Guide to Basic Laboratory Andrology in 2022.

Best Publications

  • Beckwith-Wiedemann syndrome and assisted reproduction technology (ART)

    E R Maher;L A Brueton;S C Bowdin;A Luharia

  • Four zona pellucida glycoproteins are expressed in the human

    L. Lefievre;S. J. Conner;A. Salpekar;O. Olufowobi

  • [Ca2+]i signalling in sperm--making the most of what you've got.

    Stephen Publicover;Claire V Harper;Christopher Barratt

  • Sperm DNA: organization, protection and vulnerability: from basic science to clinical applications—a position report

    Christopher L.R. Barratt;R. John Aitken;Lars Björndahl;Douglas T. Carrell

  • Origin of reactive oxygen species in human semen: spermatozoa or leucocytes?

    E. Kessopoulou;M. J. Tomlinson;C. L. R. Barratt;A. E. Bolton

  • Ca2+-stores in sperm: their identities and functions

    Sarah Costello;Francesco Michelangeli;Katherine Nash;Linda Lefievre

  • Stimulation of human spermatozoa with progesterone gradients to simulate approach to the oocyte. Induction of [Ca(2+)](i) oscillations and cyclical transitions in flagellar beating

    Claire V. Harper;Christopher L.R. Barratt;Stephen J. Publicover

  • A survey of assisted reproductive technology births and imprinting disorders

    Sarah Bowdin;Cathy Allen;Gail Kirby;Louise Brueton

  • Sperm proteome mapping of a patient who experienced failed fertilization at IVF reveals altered expression of at least 20 proteins compared with fertile donors: case report

    Katherine L. Pixton;Emma D. Deeks;Frits M. Flesch;Fleur L.C. Moseley

  • Functional significance of white blood cells in the male and female reproductive tract

    C.L.R. Barratt;A.E. Bolton;I.D. Cooke

  • Human spermatozoa contain multiple targets for protein S-nitrosylation: an alternative mechanism of the modulation of sperm function by nitric oxide?

    Linda Lefièvre;Yongjian Chen;Sarah J. Conner;Joanna L. Scott

  • Cracking the egg: increased complexity in the zona pellucida

    S.J. Conner;L. Lefièvre;D.C. Hughes;C.L.R. Barratt

  • Ca2+ Signals Generated by CatSper and Ca2+ Stores Regulate Different Behaviors in Human Sperm

    Wardah Alasmari;Sarah Costello;Joao Correia;Senga K. Oxenham

  • Calcium signalling in human spermatozoa: a specialized ‘toolkit’ of channels, transporters and stores

    C Jimenez-Gonzalez;F Michelangeli;C V Harper;C L R Barratt

  • The impact of mitochondrial genetics on male infertility.

    Justin C. St. John;Roobin P. Jokhi;Christopher L. R. Barratt

  • Ca2+ signalling in the control of motility and guidance in mammalian sperm.

    Stephen John Publicover;Laura Cecilia Giojalas;Maria Eugenia Teves;Gisela Sofia Mendes Machado de Oliveira

  • Identification of the true human orthologue of the mouse Zp1 gene: evidence for greater complexity in the mammalian zona pellucida?

    David C. Hughes;Christopher L.R. Barratt

  • Failure of elimination of paternal mitochondrial DNA in abnormal embryos.

    Justin St John;Denny Sakkas;Konstantina Dimitriadi;Annette Barnes

  • Fertility preservation in men with cancer

    Herman Tournaye;Gert R Dohle;Christopher L R Barratt

  • The clinical significance of calcium-signalling pathways mediating human sperm hyperactivation

    Wardah Alasmari;Christopher L.R. Barratt;Christopher L.R. Barratt;Stephen J. Publicover;Katherine M. Whalley

Frequent Co-Authors

Ian D. Cooke
Ian D. Cooke University of Sheffield
Harry Moore
Harry Moore University of Sheffield
Tin-Chiu Li
Tin-Chiu Li Chinese University of Hong Kong
Herman Tournaye
Herman Tournaye Vrije Universiteit Brussel
Felice Petraglia
Felice Petraglia University of Florence
Pierre F. Ray
Pierre F. Ray Grenoble Alpes University
Eamonn R. Maher
Eamonn R. Maher University of Cambridge
Jonathan K. Ball
Jonathan K. Ball University of Nottingham
Julia R. Dorin
Julia R. Dorin University of Edinburgh
Louise Brueton
Louise Brueton Northwick Park Hospital

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Biology and Biochemistry can open doors to a variety of healthcare and science careers. Many students are now considering related online degrees that offer flexibility, fast entry into the workforce, and financial accessibility. If you are interested in diagnostic imaging, look into the cheapest radiology tech programs which can provide a practical, affordable route to a skilled healthcare profession.

For those passionate about nutrition, advanced options like the best dietetics masters programs pave the way to becoming registered dietitians and working in clinical, community, or food industry settings.

Healthcare support roles are also in high demand. Students can rapidly enter the field with medical assistant classes online with financial aid, providing valuable experience and certifications without major financial strain.

For current medical assistants looking to advance, the cma to lpn bridge program online creates a streamlined path toward becoming a Licensed Practical Nurse, opening up new responsibilities and career growth opportunities.

Best Scientists Citing Christopher L.R. Barratt

Trending Scientists

Recently Published Articles