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D-Index & Metrics

Biology and Biochemistry

D-Index
53
Citations
6714
World Ranking
16394
National Ranking
6776

Michael G. O'Rand 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 Michael G. O'Rand 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: 129 publications — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Michael G. O'Rand 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 Michael G. O'Rand 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: 53 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Michael G. O'Rand is affiliated with the University of North Carolina at Chapel Hill in the United States. Their research spans several areas within biochemistry, genetics, molecular biology, and medicine, with notable contributions particularly in reproductive biology and molecular mechanisms related to sperm and testicular function.

Their frequent publication venues include UNC Libraries, where the majority of their work has appeared, as well as Scientific Reports and Drug Delivery and Translational Research. This distribution reflects a focus on both institutional archival publications and peer-reviewed scientific journals.

O'Rand's main fields of study encompass:

  • Biochemistry, Genetics and Molecular Biology
  • Medicine

Within these broad fields, their subfields of study include:

  • Molecular Biology
  • Reproductive Medicine
  • Public Health, Environmental and Occupational Health
  • Insect Science
  • Immunology

The primary topics addressed in their papers are:

  • Sperm and Testicular Function
  • Heat shock proteins research
  • RNA Interference and Gene Delivery
  • RNA Research and Splicing
  • Reproductive Biology and Fertility
  • Insect and Pesticide Research
  • Bee Products Chemical Analysis

Their notable recent papers include:

  • Interactions of the male contraceptive target EPPIN with semenogelin-1 and small organic ligands (2023, Scientific Reports)
  • Site-directed Mutagenesis of Rabbit Proacrosin: Identification of Residues Involved in Zona Pellucida Binding (2021, UNC Libraries)
  • Association of NASP with HSP90 in Mouse Spermatogenic Cells: Stimulation of ATPase Activity and Transport of Linker Histones into Nuclei (2021, UNC Libraries)
  • Processing of the Sperm Protein Sp17 during the Acrosome Reaction and Characterization as a Calmodulin Binding Protein (2021, UNC Libraries)
  • Linker Histones Stimulate HSPA2 ATPase Activity Through NASP Binding and Inhibit CDC2/Cyclin B1 Complex Formation During Meiosis in the Mouse (2020, UNC Libraries)

O'Rand frequently collaborates with several researchers, among whom are:

  • Richard T. Richardson
  • Katherine G. Hamil
  • Esther E. Widgren
  • Erick J. R. Silva
  • Oleg Alekseev

Best Publications

  • Reversible immunocontraception in male monkeys immunized with eppin.

    M. G. O'Rand;E. E. Widgren;P. Sivashanmugam;R. T. Richardson

  • Characterization of the rabbit sperm membrane autoantigen, RSA, as a lectin-like zona binding protein.

    Michael G. O'Rand;Esther E. Widgren;Susan J. Fisher

  • Cloning and sequencing of human Eppin: a novel family of protease inhibitors expressed in the epididymis and testis.

    Richard T Richardson;Perumal Sivashanmugam;Susan H Hall;Katherine G Hamil

  • Sequence of a rabbit sperm zona pellucida binding protein and localization during the acrosome reaction.

    Richard T. Richardson;Noriyuki Yamasaki;Michael G. O'Rand

  • Characterization of the Histone H1-binding Protein, NASP, as a Cell Cycle-regulated Somatic Protein

    Richard T. Richardson;Iglika N. Batova;Esther E. Widgren;Lian Xing Zheng

  • Sperm-egg recognition and barriers to interspecies fertilization.

    Michael G. O'Rand

  • Nuclear autoantigenic sperm protein (NASP), a linker histone chaperone that is required for cell proliferation.

    Richard T. Richardson;Oleg M. Alekseev;Gail Grossman;Esther E. Widgren

  • Antimicrobial Activity of Human EPPIN, an Androgen-Regulated, Sperm-Bound Protein with a Whey Acidic Protein Motif

    Suresh Yenugu;Richard T. Richardson;Perumal Sivashanmugam;Zengjun Wang

  • HE2beta and HE2gamma, new members of an epididymis-specific family of androgen-regulated proteins in the human.

    Katherine G. Hamil;P. Sivashanmugam;Richard T. Richardson;Gail Grossman

  • Identification and distribution of actin in spermatogenic cells and spermatozoa of the rabbit

    Jeffrey E. Welch;Michael G. O'Rand

  • Association of Eppin with Semenogelin on Human Spermatozoa

    Zengjun Wang;E.E. Widgren;P. Sivashanmugam;M.G. O'Rand

  • Inhibition of Fertility and Sperm-Zona Binding by Antiserum to the Rabbit Sperm Membrane Autoantigen RSA-1

    Michael G. O’rand

  • Identification of zona binding proteins of rabbit, pig, human, and mouse spermatozoa on nitrocellulose blots

    Michael G. O'Rand;Jessica E. Matthews;Jeffrey E. Welch;Susan J. Fisher

  • Sequence and localization of the mouse sperm autoantigenic protein, Sp17.

    Min Kong;Richard T. Richardson;Esther E. Widgren;Michael G. O’Rand

  • Localization of zona pellucida binding sites on rabbit spermatozoa and induction of the acrosome reaction by solubilized zonae

    Michael G. O'Rand;Susan J. Fisher

  • Monoclonal antibodies to rabbit sperm autoantigens. I. Inhibition of in vitro fertilization and localization on the egg.

    Michael G. O’Rand;Grace P. Irons;James P. Porter

  • Semen parameters and fertilization of human oocytes in vitro: a multivariable analysis

    Luther M. Talbert;Mary G. Hammond;Jouko Halme;Michael O’Rand

  • Characterization of an Eppin Protein Complex from Human Semen and Spermatozoa

    Zengjun Wang;Esther E. Widgren;Richard T. Richardson;Michael G. O'Rand

  • Cloning and sequencing of cDNAs encoding the human sperm protein, Sp17.

    I.A. Lea;R.T. Richardson;E.E. Widgren;M.G. O'Rand

  • Characterization of Sp17: a ubiquitous three domain protein that binds heparin

    Ying Wen;Richard T. Richardson;Esther E. Widgren;Michael G. O'rand

Frequent Co-Authors

Frank S. French
Frank S. French University of North Carolina at Chapel Hill
Christopher D. Pilcher
Christopher D. Pilcher University of California, San Francisco
Frank Kirchhoff
Frank Kirchhoff University of Ulm
Jan Münch
Jan Münch University of Ulm
William F. Marzluff
William F. Marzluff University of North Carolina at Chapel Hill
Warner C. Greene
Warner C. Greene University of California, San Francisco
Steven M. Ruben
Steven M. Ruben Celera Corporation
Brian Herman
Brian Herman The University of Texas Health Science Center at San Antonio
Paul A. Moore
Paul A. Moore MacroGenics (United States)
Michael A. Tainsky
Michael A. Tainsky Wayne State University

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