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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 53 13117 11801 3458 2826 171 9552

Abdu I. Alayash publications per year

The chart shows the history of publications by Abdu I. Alayash between 1986 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Abdu I. Alayash published across 41 years, from 1986 to 2026, averaging 4.7 papers a year. Output peaked at 10 publications in 2016. 6 of the 192 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1986 to 2026. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2016. 1986: 1 publication 1987: 4 publications 1988: 3 publications 1989: 3 publications 1990: 0 publications 1991: 1 publication 1992: 3 publications 1993: 3 publications 1994: 2 publications 1995: 6 publications 1996: 1 publication 1997: 1 publication 1998: 5 publications 1999: 5 publications 2000: 8 publications 2001: 7 publications 2002: 4 publications 2003: 3 publications 2004: 9 publications 2005: 3 publications 2006: 5 publications 2007: 7 publications 2008: 7 publications 2009: 3 publications 2010: 7 publications 2011: 6 publications 2012: 6 publications 2013: 9 publications 2014: 6 publications 2015: 5 publications 2016: 10 publications 2017: 8 publications 2018: 6 publications 2019: 6 publications 2020: 4 publications 2021: 6 publications 2022: 6 publications 2023: 3 publications 2024: 4 publications 2025: 5 publications 2026: 1 publication
1986 2026

192 publications in total across all disciplines

View publications per year as a table
Abdu I. Alayash: publications per year, 1986 to 2026
Year Publications
1986 1
1987 4
1988 3
1989 3
1990 0
1991 1
1992 3
1993 3
1994 2
1995 6
1996 1
1997 1
1998 5
1999 5
2000 8
2001 7
2002 4
2003 3
2004 9
2005 3
2006 5
2007 7
2008 7
2009 3
2010 7
2011 6
2012 6
2013 9
2014 6
2015 5
2016 10
2017 8
2018 6
2019 6
2020 4
2021 6
2022 6
2023 3
2024 4
2025 5
2026 1
Total 192
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Abdu I. Alayash 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 Abdu I. Alayash 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, 161–180 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: 171 publications — 22nd percentile

22% 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 1,350 171
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
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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Abdu I. Alayash 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 Abdu I. Alayash 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, 52–53 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: 53 D-Index — 28th percentile

28% 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 53
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
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

Abdu I. Alayash is affiliated with the US Food and Drug Administration in the United States and has contributed extensively to research in biochemistry, genetics, molecular biology, and medicine. They have focused particularly on topics related to hemoglobin structure and function, heme oxygenase-1 and carbon monoxide, and hemoglobinopathies and related disorders.

Their work spans several subfields including cell biology, molecular biology, genetics, physiology, and pediatrics, perinatology, and child health. Central themes in their research involve erythrocyte function and pathophysiology, neonatal health and biochemistry, iron metabolism and disorders, and thermal regulation in medicine.

Alayash has published multiple papers in notable scientific venues. Some of their recent publications include:

  • "Post-translational modification as a response to cellular stress induced by hemoglobin oxidation in sickle cell disease," 2020, Scientific Reports
  • "Caffeic acid: an antioxidant with novel antisickling properties," 2021, FEBS Open Bio
  • "βCysteine 93 in human hemoglobin: a gateway to oxidative stability in health and disease," 2020, Laboratory Investigation
  • "Mitapivat increases ATP and decreases oxidative stress and erythrocyte mitochondria retention in a SCD mouse model," 2022, Blood Cells Molecules and Diseases
  • "The Impact of COVID-19 Infection on Oxygen Homeostasis: A Molecular Perspective," 2021, Frontiers in Physiology

Frequent co-authors collaborating with Alayash include:

  • Sirsendu Jana
  • Tigist Kassa
  • Michael R. Heaven
  • Richard Prince
  • Yugal Goel

Alayash has published repeatedly in several prominent journals, reflecting areas of sustained scholarly activity and influence. These venues include:

  • Frontiers in Physiology
  • International Journal of Molecular Sciences
  • Scientific Reports
  • Frontiers in Molecular Biosciences
  • Blood

Best Publications

  • Hemolysis and free hemoglobin revisited: exploring hemoglobin and hemin scavengers as a novel class of therapeutic proteins

    Dominik J. Schaer;Paul W. Buehler;Abdu I. Alayash;John D. Belcher

  • Heme triggers TLR4 signaling leading to endothelial cell activation and vaso-occlusion in murine sickle cell disease

    John D. Belcher;Chunsheng Chen;Julia Nguyen;Liming Milbauer

  • Oxygen therapeutics: can we tame haemoglobin?

    Abdu I Alayash

  • CD163 is the macrophage scavenger receptor for native and chemically modified hemoglobins in the absence of haptoglobin.

    Dominik J. Schaer;Christian A. Schaer;Christian A. Schaer;Paul W. Buehler;Paul W. Buehler;Robert A. Boykins;Robert A. Boykins

  • Redox Reactions of Hemoglobin and Myoglobin: Biological and Toxicological Implications

    Abdu I. Alayash;Rakesh P. Patel;Robert E. Cashon

  • Hemoglobin-based blood substitutes: oxygen carriers, pressor agents, or oxidants?

    Abdu I. Alayash

  • Haptoglobin preserves the CD163 hemoglobin scavenger pathway by shielding hemoglobin from peroxidative modification

    Paul W. Buehler;Bindu Abraham;Florence Vallelian;Charlotte Linnemayr

  • Sequestration of extracellular hemoglobin within a haptoglobin complex decreases its hypertensive and oxidative effects in dogs and guinea pigs

    Felicitas S. Boretti;Paul W. Buehler;Felice D’Agnillo;Katharina Kluge

  • Blood substitutes: why haven’t we been more successful?

    Abdu I. Alayash

  • Structural Basis of Peroxide-mediated Changes in Human Hemoglobin A NOVEL OXIDATIVE PATHWAY

    Yiping Jia;Paul W. Buehler;Robert A. Boykins;Richard M. Venable

  • Determination of extinction coefficients of human hemoglobin in various redox states.

    Fantao Meng;Abdu I. Alayash

  • Site-Specific Cross-Linking of Human and Bovine Hemoglobins Differentially Alters Oxygen Binding and Redox Side Reactions Producing Rhombic Heme and Heme Degradation†

    Enika Nagababu;Somasundaram Ramasamy;Joseph Moses Rifkind;Yiping Jia

  • Toxicities of hemoglobin solutions: in search of in-vitro and in-vivo model systems

    Paul W. Buehler;Abdu I. Alayash

  • Haptoglobin: old protein with new functions.

    Abdu I. Alayash

  • Ascorbate removes key precursors to oxidative damage by cell-free haemoglobin in vitro and in vivo

    Jacqueline Dunne;Alexis Caron;Patrick Menu;Abdu I. Alayash

  • Gating the radical hemoglobin to macrophages: the anti-inflammatory role of CD163, a scavenger receptor.

    Dominik J. Schaer;Abdu I. Alayash;Paul W. Buehler

  • Structural and Functional Characterization of Glutaraldehyde-Polymerized Bovine Hemoglobin and Its Isolated Fractions

    Paul W Buehler;Robert A Boykins;Yiping Jia;Scott Norris

  • Haptoglobin Binding Stabilizes Hemoglobin Ferryl Iron and the Globin Radical on Tyrosine β145

    Christopher E Cooper;Dominik J Schaer;Paul W Buehler;Michael T Wilson

  • Nitric Oxide Binding to Human Ferrihemoglobins Cross-Linked between Either α or β Subunits

    A.I. Alayash;J.C. Fratantoni;C. Bonaventura;J. Bonaventura

  • Hemoglobin and free radicals: implications for the development of a safe blood substitute

    Abdu I. Alayash;Robert E. Cashon

  • Acellular hemoglobin-mediated oxidative stress toward endothelium: a role for ferryl iron

    Daniel W. Goldman;Richard J. Breyer;David Yeh;Beth A. Brockner-Ryan

  • Effects of endogenous ascorbate on oxidation, oxygenation, and toxicokinetics of cell-free modified hemoglobin after exchange transfusion in rat and guinea pig.

    Paul W. Buehler;Felice D'Agnillo;Victoria Hoffman;Abdu I. Alayash

  • Peroxynitrite-Mediated Heme Oxidation and Protein Modification of Native and Chemically Modified Hemoglobins

    Abdu I. Alayash;Beth A.Brockner Ryan;Robert E. Cashon

Frequent Co-Authors

Alvin L. Crumbliss
Alvin L. Crumbliss Duke University
Michael T. Wilson
Michael T. Wilson University of Essex
John S. Olson
John S. Olson Rice University
Celia Bonaventura
Celia Bonaventura Duke University
Chris E. Cooper
Chris E. Cooper University of Essex
Gregory M. Vercellotti
Gregory M. Vercellotti University of Minnesota
Leif Bülow
Leif Bülow Lund University
Bo Åkerström
Bo Åkerström Lund University
Joseph Bonaventura
Joseph Bonaventura Duke University
Swee Lay Thein
Swee Lay Thein King's College London

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