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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 78 3870 3509 1235 1031 300 18928
Biology and Biochemistry 79 4377 4035 2132 1918 314 19712

Oksana Lockridge publications per year

The chart shows the history of publications by Oksana Lockridge between 1971 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Oksana Lockridge published across 55 years, from 1971 to 2025, averaging 6 papers a year. Output peaked at 19 publications in 2008. 8 of the 332 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1971 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2008. 1971: 1 publication 1972: 2 publications 1973: 1 publication 1974: 0 publications 1975: 1 publication 1976: 0 publications 1977: 1 publication 1978: 1 publication 1979: 2 publications 1980: 0 publications 1981: 0 publications 1982: 2 publications 1983: 1 publication 1984: 1 publication 1985: 0 publications 1986: 1 publication 1987: 2 publications 1988: 1 publication 1989: 2 publications 1990: 5 publications 1991: 6 publications 1992: 3 publications 1993: 2 publications 1994: 5 publications 1995: 6 publications 1996: 1 publication 1997: 8 publications 1998: 14 publications 1999: 12 publications 2000: 3 publications 2001: 5 publications 2002: 14 publications 2003: 12 publications 2004: 11 publications 2005: 17 publications 2006: 11 publications 2007: 15 publications 2008: 19 publications 2009: 12 publications 2010: 18 publications 2011: 15 publications 2012: 9 publications 2013: 18 publications 2014: 5 publications 2015: 6 publications 2016: 7 publications 2017: 5 publications 2018: 16 publications 2019: 4 publications 2020: 9 publications 2021: 2 publications 2022: 4 publications 2023: 6 publications 2024: 3 publications 2025: 5 publications
1971 2025

332 publications in total across all disciplines

View publications per year as a table
Oksana Lockridge: publications per year, 1971 to 2025
Year Publications
1971 1
1972 2
1973 1
1974 0
1975 1
1976 0
1977 1
1978 1
1979 2
1980 0
1981 0
1982 2
1983 1
1984 1
1985 0
1986 1
1987 2
1988 1
1989 2
1990 5
1991 6
1992 3
1993 2
1994 5
1995 6
1996 1
1997 8
1998 14
1999 12
2000 3
2001 5
2002 14
2003 12
2004 11
2005 17
2006 11
2007 15
2008 19
2009 12
2010 18
2011 15
2012 9
2013 18
2014 5
2015 6
2016 7
2017 5
2018 16
2019 4
2020 9
2021 2
2022 4
2023 6
2024 3
2025 5
Total 332
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Oksana Lockridge publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Oksana Lockridge sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 281–300 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 300 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939 300
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Oksana Lockridge D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Oksana Lockridge sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 78–79 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 78 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388 78
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Oksana Lockridge is affiliated with the University of Nebraska Medical Center in the United States. Their research spans multiple fields including biochemistry, genetics, molecular biology, medicine, and agricultural and biological sciences. Within these areas, the scientist has contributed extensively to subfields such as pharmacology, plant science, molecular biology, computational theory and mathematics, and insect science.

Their work covers a variety of topics primarily focused on pesticide exposure and toxicity, cholinesterase and neurodegenerative diseases, computational drug discovery methods, insect and pesticide research, blood properties and coagulation, carcinogens and genotoxicity assessment, and environmental studies related to pesticides and herbicides.

Recent publications by Oksana Lockridge include:

  • Review: Organophosphorus toxicants, in addition to inhibiting acetylcholinesterase activity, make covalent adducts on multiple proteins and promote protein crosslinking into high molecular weight aggregates (2023, Chemico-Biological Interactions)
  • Drug and pro-drug substrates and pseudo-substrates of human butyrylcholinesterase (2023, Biochemical Pharmacology)
  • Butyrylcholinesterase in SH-SY5Y human neuroblastoma cells (2022, NeuroToxicology)
  • Human butyrylcholinesterase in Cohn fraction IV-4 purified in a single chromatography step on Hupresin (2023, PLoS ONE)
  • Organophosphorus Pesticides Promote Protein Cross-Linking (2022, Chemical Research in Toxicology)

Oksana Lockridge frequently collaborates with several researchers, including Lawrence M. Schopfer, Patrick Masson, Seda Önder, Özden Tacal, and Marilynn A. Larson. These collaborations have resulted in numerous publications that explore biochemical interactions related to cholinesterase and toxicology.

The scientist's work has been published predominantly in the following venues:

  • Chemico-Biological Interactions
  • PLoS ONE
  • Chemical Research in Toxicology
  • Molecules
  • Analytical Biochemistry

The research output reflects interdisciplinary approaches combining experimental biochemistry, pharmacological studies, and computational methods. Focus areas involve detailed investigations of human butyrylcholinesterase and the impact of organophosphorus compounds, especially in relation to their biochemical mechanisms and neurotoxic effects.

Best Publications

  • Crystal structure of human butyrylcholinesterase and of its complexes with substrate and products.

    Yvain Nicolet;Oksana Lockridge;Patrick Masson;Juan C. Fontecilla-Camps

  • Acetylcholinesterase knockouts establish central cholinergic pathways and can use butyrylcholinesterase to hydrolyze acetylcholine

    M. M. Mesulam;A. Guillozet;P. Shaw;A. Levey

  • Butyrylcholinesterase, paraoxonase, and albumin esterase, but not carboxylesterase, are present in human plasma

    Bin Li;Meghan Sedlacek;Indumathi Manoharan;Rathnam Boopathy

  • Comparison of butyrylcholinesterase and acetylcholinesterase.

    Unknown

  • Differences in active-site gorge dimensions of cholinesterases revealed by binding of inhibitors to human butyrylcholinesterase

    Ashima Saxena;Ann M.G. Redman;Xuliang Jiang;Oksana Lockridge

  • Review of human butyrylcholinesterase structure, function, genetic variants, history of use in the clinic, and potential therapeutic uses.

    Unknown

  • Abundant tissue butyrylcholinesterase and its possible function in the acetylcholinesterase knockout mouse.

    Bin Li;Judith A. Stribley;Judith A. Stribley;Andreea Ticu;Weihua Xie

  • Postnatal Developmental Delay and Supersensitivity to Organophosphate in Gene-Targeted Mice Lacking Acetylcholinesterase

    Weihua Xie;Judith A. Stribley;Arnaud Chatonnet;Phillip J. Wilder

  • DNA mutation associated with the human butyrylcholinesterase K-variant and its linkage to the atypical variant mutation and other polymorphic sites

    C. F. Bartels;F. S. Jensen;O. Lockridge;A. F.L. Van der Spek

  • Butyrylcholinesterase for protection from organophosphorus poisons; catalytic complexities and hysteretic behavior

    Patrick Masson;Oksana Lockridge

  • Mechanism of action of the flavoenzyme lactate oxidase.

    Oksana Lockridge;Vincent Massey;Patrick A. Sullivan

  • Genetic variants of human serum cholinesterase influence metabolism of the muscle relaxant succinylcholine.

    Unknown

  • A single amino acid substitution, Gly117His, confers phosphotriesterase (organophosphorus acid anhydride hydrolase) activity on human butyrylcholinesterase

    Oksana Lockridge;Renee M. Blong;Patrick Masson;Marie Thérèse Froment

  • An improved cocaine hydrolase: the A328Y mutant of human butyrylcholinesterase is 4-fold more efficient.

    Weihua Xie;Cibby Varkey Altamirano;Cynthia F. Bartels;Robert J. Speirs

  • Pesticides and susceptible populations: people with butyrylcholinesterase genetic variants may be at risk.

    O Lockridge;P Masson

  • Evidence for Nonacetylcholinesterase Targets of Organophosphorus Nerve Agent: Supersensitivity of Acetylcholinesterase Knockout Mouse to VX Lethality

    Ellen G. Duysen;Bin Li;Weihua Xie;Lawrence M. Schopfer

  • Comparison of atypical and usual human serum cholinesterase. Purification, number of active sites, substrate affinity, and turnover number.

    Oksana Lockridge;B. N. La Du

  • Carbamates with differential mechanism of inhibition toward acetylcholinesterase and butyrylcholinesterase.

    Sultan Darvesh;Sultan Darvesh;Katherine V. Darvesh;Robert S. McDonald;Diane Mataija

  • Identification of the structural mutation responsible for the dibucaine-resistant (atypical) variant form of human serum cholinesterase.

    Unknown

  • Rescue of the acetylcholinesterase knockout mouse by feeding a liquid diet; phenotype of the adult acetylcholinesterase deficient mouse.

    Ellen G. Duysen;Judith A. Stribley;Debra L. Fry;Steven Heye Hinrichs

  • Role of aspartate 70 and tryptophan 82 in binding of succinyldithiocholine to human butyrylcholinesterase

    Patrick Masson;Pierre Legrand;Cynthia F. Bartels;Marie Thérese Froment

  • Interchain disulfide bonds and subunit organization in human serum cholinesterase.

    Oksana Lockridge;H. W. Eckerson;B. N. La Du

  • Albumin, a New Biomarker of Organophosphorus Toxicant Exposure, Identified by Mass Spectrometry

    Eric S. Peeples;Lawrence M. Schopfer;Ellen G. Duysen;Reggie Spaulding

  • Re-engineering butyrylcholinesterase as a cocaine hydrolase

    Hong Sun;Yuan Ping Pang;Oksana Lockridge;Stephen Brimijoin

Frequent Co-Authors

Patrick Masson
Patrick Masson Kazan Federal University
Florian Nachon
Florian Nachon Centre national de la recherche scientifique, CNRS
Palmer Taylor
Palmer Taylor University of California, San Diego
Bhupendra P. Doctor
Bhupendra P. Doctor Walter Reed Army Institute of Research
Allan I. Levey
Allan I. Levey Emory University
Vincent Massey
Vincent Massey University of Michigan–Ann Arbor
Hong Peng
Hong Peng Xihua University
Clement E. Furlong
Clement E. Furlong University of Washington
Bruno Mégarbane
Bruno Mégarbane Université Paris Cité

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