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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 104 7038 6619 3699 3430 402 40604
Genetics 97 837 788 422 394 345 36879

Michael R. Knowles publications per year

The chart shows the history of publications by Michael R. Knowles between 1971 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Michael R. Knowles published across 55 years, from 1971 to 2025, averaging 9.2 papers a year. Output peaked at 42 publications in 2015. 30 of the 507 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1971 to 2025. Vertical axis: number of publications, 0 to 42. Peak 42 publications in 2015. 1971: 1 publication 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 4 publications 1982: 3 publications 1983: 3 publications 1984: 2 publications 1985: 8 publications 1986: 6 publications 1987: 6 publications 1988: 4 publications 1989: 4 publications 1990: 5 publications 1991: 7 publications 1992: 4 publications 1993: 9 publications 1994: 6 publications 1995: 13 publications 1996: 3 publications 1997: 9 publications 1998: 7 publications 1999: 6 publications 2000: 9 publications 2001: 5 publications 2002: 8 publications 2003: 5 publications 2004: 8 publications 2005: 10 publications 2006: 9 publications 2007: 11 publications 2008: 5 publications 2009: 15 publications 2010: 20 publications 2011: 29 publications 2012: 29 publications 2013: 23 publications 2014: 14 publications 2015: 42 publications 2016: 19 publications 2017: 10 publications 2018: 10 publications 2019: 16 publications 2020: 25 publications 2021: 15 publications 2022: 12 publications 2023: 18 publications 2024: 16 publications 2025: 14 publications
1971 2025

507 publications in total across all disciplines

View publications per year as a table
Michael R. Knowles: publications per year, 1971 to 2025
Year Publications
1971 1
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 4
1982 3
1983 3
1984 2
1985 8
1986 6
1987 6
1988 4
1989 4
1990 5
1991 7
1992 4
1993 9
1994 6
1995 13
1996 3
1997 9
1998 7
1999 6
2000 9
2001 5
2002 8
2003 5
2004 8
2005 10
2006 9
2007 11
2008 5
2009 15
2010 20
2011 29
2012 29
2013 23
2014 14
2015 42
2016 19
2017 10
2018 10
2019 16
2020 25
2021 15
2022 12
2023 18
2024 16
2025 14
Total 507
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Michael R. Knowles publication distribution in Genetics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Genetics in 2026. The highlighted bar marks where Michael R. Knowles sits on this spectrum.

No. of scientists
50 100 150 200
Bar chart with 67 bars. Horizontal axis: publications, 45–54 to 703+. Vertical axis: number of scientists, 0 to 217. Most scientists, 217, have 125–134 publications. The last bar groups every scientist with 703 publications or more. The highlighted bar, 345–354 publications, is where this scientist sits. 45–54 publications: 6 scientists 55–64 publications: 10 scientists 65–74 publications: 35 scientists 75–84 publications: 84 scientists 85–94 publications: 102 scientists 95–104 publications: 151 scientists 105–114 publications: 175 scientists 115–124 publications: 203 scientists 125–134 publications: 217 scientists 135–144 publications: 205 scientists 145–154 publications: 193 scientists 155–164 publications: 188 scientists 165–174 publications: 170 scientists 175–184 publications: 178 scientists 185–194 publications: 164 scientists 195–204 publications: 173 scientists 205–214 publications: 159 scientists 215–224 publications: 134 scientists 225–234 publications: 143 scientists 235–244 publications: 105 scientists 245–254 publications: 114 scientists 255–264 publications: 92 scientists 265–274 publications: 88 scientists 275–284 publications: 87 scientists 285–294 publications: 80 scientists 295–304 publications: 62 scientists 305–314 publications: 75 scientists 315–324 publications: 67 scientists 325–334 publications: 60 scientists 335–344 publications: 52 scientists 345–354 publications: 40 scientists 355–364 publications: 48 scientists 365–374 publications: 47 scientists 375–384 publications: 46 scientists 385–394 publications: 31 scientists 395–404 publications: 27 scientists 405–414 publications: 40 scientists 415–424 publications: 30 scientists 425–434 publications: 43 scientists 435–444 publications: 29 scientists 445–454 publications: 14 scientists 455–464 publications: 28 scientists 465–474 publications: 21 scientists 475–484 publications: 21 scientists 485–494 publications: 22 scientists 495–504 publications: 17 scientists 505–514 publications: 12 scientists 515–524 publications: 11 scientists 525–534 publications: 8 scientists 535–544 publications: 8 scientists 545–554 publications: 14 scientists 555–564 publications: 4 scientists 565–574 publications: 11 scientists 575–584 publications: 5 scientists 585–594 publications: 11 scientists 595–604 publications: 12 scientists 605–614 publications: 7 scientists 615–624 publications: 6 scientists 625–634 publications: 10 scientists 635–644 publications: 9 scientists 645–654 publications: 10 scientists 655–664 publications: 6 scientists 665–674 publications: 6 scientists 675–684 publications: 6 scientists 685–694 publications: 4 scientists 695–702 publications: 6 scientists 703+ publications: 100 scientists
45–54 publications 703+

This scientist: 345 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 703 publications or more.

View publications distribution as a table
Number of Genetics scientists by publication count, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
Publications Scientists This scientist
45–54 6
55–64 10
65–74 35
75–84 84
85–94 102
95–104 151
105–114 175
115–124 203
125–134 217
135–144 205
145–154 193
155–164 188
165–174 170
175–184 178
185–194 164
195–204 173
205–214 159
215–224 134
225–234 143
235–244 105
245–254 114
255–264 92
265–274 88
275–284 87
285–294 80
295–304 62
305–314 75
315–324 67
325–334 60
335–344 52
345–354 40 345
355–364 48
365–374 47
375–384 46
385–394 31
395–404 27
405–414 40
415–424 30
425–434 43
435–444 29
445–454 14
455–464 28
465–474 21
475–484 21
485–494 22
495–504 17
505–514 12
515–524 11
525–534 8
535–544 8
545–554 14
555–564 4
565–574 11
575–584 5
585–594 11
595–604 12
605–614 7
615–624 6
625–634 10
635–644 9
645–654 10
655–664 6
665–674 6
675–684 6
685–694 4
695–702 6
703+ 100
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Michael R. Knowles D-index placement in Genetics in 2026

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

No. of scientists
50 100 150
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 160+. Vertical axis: number of scientists, 0 to 191. Most scientists, 191, have 62–63 D-Index. The last bar groups every scientist with 160 D-Index or more. The highlighted bar, 96–97 D-Index, is where this scientist sits. 40–41 D-Index: 24 scientists 42–43 D-Index: 52 scientists 44–45 D-Index: 84 scientists 46–47 D-Index: 112 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 141 scientists 52–53 D-Index: 143 scientists 54–55 D-Index: 145 scientists 56–57 D-Index: 179 scientists 58–59 D-Index: 162 scientists 60–61 D-Index: 175 scientists 62–63 D-Index: 191 scientists 64–65 D-Index: 172 scientists 66–67 D-Index: 184 scientists 68–69 D-Index: 164 scientists 70–71 D-Index: 158 scientists 72–73 D-Index: 150 scientists 74–75 D-Index: 136 scientists 76–77 D-Index: 127 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 111 scientists 82–83 D-Index: 110 scientists 84–85 D-Index: 110 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 102 scientists 90–91 D-Index: 66 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 70 scientists 96–97 D-Index: 54 scientists 98–99 D-Index: 60 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 55 scientists 104–105 D-Index: 45 scientists 106–107 D-Index: 42 scientists 108–109 D-Index: 28 scientists 110–111 D-Index: 39 scientists 112–113 D-Index: 25 scientists 114–115 D-Index: 31 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 34 scientists 120–121 D-Index: 29 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 27 scientists 128–129 D-Index: 22 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 11 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 21 scientists 140–141 D-Index: 4 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 14 scientists 146–147 D-Index: 6 scientists 148–149 D-Index: 10 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 9 scientists 154–155 D-Index: 8 scientists 156–157 D-Index: 8 scientists 158–159 D-Index: 9 scientists 160+ D-Index: 96 scientists
40–41 D-Index 160+

This scientist: 97 D-Index — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 160 D-Index or more.

View D-Index distribution as a table
Number of Genetics scientists by D-index, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
D-Index Scientists This scientist
40–41 24
42–43 52
44–45 84
46–47 112
48–49 118
50–51 141
52–53 143
54–55 145
56–57 179
58–59 162
60–61 175
62–63 191
64–65 172
66–67 184
68–69 164
70–71 158
72–73 150
74–75 136
76–77 127
78–79 127
80–81 111
82–83 110
84–85 110
86–87 84
88–89 102
90–91 66
92–93 72
94–95 70
96–97 54 97
98–99 60
100–101 49
102–103 55
104–105 45
106–107 42
108–109 28
110–111 39
112–113 25
114–115 31
116–117 29
118–119 34
120–121 29
122–123 29
124–125 18
126–127 27
128–129 22
130–131 16
132–133 11
134–135 17
136–137 12
138–139 21
140–141 4
142–143 9
144–145 14
146–147 6
148–149 10
150–151 7
152–153 9
154–155 8
156–157 8
158–159 9
160+ 96
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Overview

Michael R. Knowles is affiliated with the University of North Carolina at Chapel Hill in the United States. Their research primarily focuses on medicine, with a significant volume of work within biochemistry, genetics, and molecular biology.

The scientist's work is concentrated in several subfields including pulmonary and respiratory medicine, genetics, molecular biology, surgery, and epidemiology. Their main topics of research encompass cystic fibrosis research advances, neonatal respiratory health, tracheal and airway disorders, genetic and kidney cyst diseases, pediatric health and respiratory diseases, genomics and rare diseases, as well as microtubule and mitosis dynamics.

Frequent publication venues for Michael R. Knowles include:

  • UNC Libraries
  • Pediatric Pulmonology
  • Annals of the American Thoracic Society
  • Journal of Cystic Fibrosis
  • American Journal of Respiratory and Critical Care Medicine

Frequent co-authors in Knowles's research collaborations are:

  • Margaret W. Leigh
  • Maimoona A. Zariwala
  • Rhonda G. Pace
  • Stephanie D. Davis
  • Garry R. Cutting

Recent publications representative of their research include:

  • "A human ciliopathy reveals essential functions for NEK10 in airway mucociliary clearance," 2020, Nature Medicine
  • "Benign missense variations in the cystic fibrosis gene," 2020, PubMed
  • "Mutation of CFAP57, a protein required for the asymmetric targeting of a subset of inner dynein arms in Chlamydomonas, causes primary ciliary dyskinesia," 2020, PLoS Genetics
  • "Airway Clearance Techniques in Bronchiectasis," 2020, CHEST Journal
  • "Limitations of Nasal Nitric Oxide Testing in Primary Ciliary Dyskinesia," 2020, American Journal of Respiratory and Critical Care Medicine

The research spans various aspects of respiratory and genetic disorders, notably focusing on ciliary function and cystic fibrosis. Their publications address both clinical and molecular biology aspects of pulmonary health and disease, contributing to understanding airway clearance, genetic mutations affecting ciliary function, and diagnostic limitations related to respiratory conditions.

Best Publications

  • Mucus clearance as a primary innate defense mechanism for mammalian airways

    Michael R. Knowles;Richard C. Boucher

  • Relation between mutations of the cystic fibrosis gene and idiopathic pancreatitis.

    Jonathan A. Cohn;Kenneth J. Friedman;Peadar G. Noone;Michael R. Knowles

  • Primary ciliary dyskinesia: diagnostic and phenotypic features.

    Peadar G Noone;Margaret W Leigh;Aruna Sannuti;Susan L. Minnix

  • Mucus clearance and lung function in cystic fibrosis with hypertonic saline.

    Scott H. Donaldson;William D. Bennett;Kirby L. Zeman;Michael R. Knowles

  • Consensus on the use and interpretation of cystic fibrosis mutation analysis in clinical practice

    C. Castellani;H. Cuppens;M. Macek;J. J. Cassiman

  • Increased Bioelectric Potential Difference across Respiratory Epithelia in Cystic Fibrosis

    Michael R Knowles;John Gatzy;Richard C Boucher

  • Nontuberculous mycobacteria. I: multicenter prevalence study in cystic fibrosis.

    Kenneth N. Olivier;David Jay Weber;Richard J. Wallace;Ali R. Faiz

  • A controlled study of adenoviral-vector-mediated gene transfer in the nasal epithelium of patients with cystic fibrosis

    Michael R Knowles;Kathy W. Hohneker;Zhaoqing Zhou;John C. Olsen

  • Na+ transport in cystic fibrosis respiratory epithelia. Abnormal basal rate and response to adenylate cyclase activation.

    R C Boucher;M J Stutts;M R Knowles;L Cantley

  • Mutations in DNAH5 cause primary ciliary dyskinesia and randomization of left–right asymmetry

    Heike Olbrich;Karsten Häffner;Andreas Kispert;Alexander Völkel

  • Activation by extracellular nucleotides of chloride secretion in the airway epithelia of patients with cystic fibrosis.

    Michael R. Knowles;Lane L. Clarke;Richard C. Boucher

  • Genetic Modifiers of Lung Disease in Cystic Fibrosis

    Mitchell L. Drumm;Michael W. Konstan;Mark D. Schluchter;Allison Handler

  • Abnormal ion permeation through cystic fibrosis respiratory epithelium

    Michael R Knowles;Monroe Jack Stutts;A. Spock;N. Fischer

  • Clinical and genetic aspects of primary ciliary dyskinesia/Kartagener syndrome.

    Margaret W Leigh;Jessica E. Pittman;Johnny Lee Carson;Thomas W. Ferkol

  • Primary Ciliary Dyskinesia. Recent Advances in Diagnostics, Genetics, and Characterization of Clinical Disease

    Michael R. Knowles;Leigh Anne Daniels;Stephanie D. Davis;Maimoona A. Zariwala

  • A novel mutation in the cystic fibrosis gene in patients with pulmonary disease but normal sweat chloride concentrations

    W. Edward Highsmith;Lauranell H. Burch;Zhaoqing Zhou;John C. Olsen

  • Congenital Heart Disease and Other Heterotaxic Defects in a Large Cohort of Patients With Primary Ciliary Dyskinesia

    Marcus P. Kennedy;Heymut Omran;Margaret W. Leigh;Sharon Dell

  • Recommendations for the classification of diseases as CFTR-related disorders

    Cristina Bombieri;M Claustres;K De Boeck;N Derichs

  • In Vivo Nasal Potential Difference: Techniques and Protocols for Assessing Efficacy of Gene Transfer in Cystic Fibrosis

    M. R. Knowles;A. M. Paradiso;R. C. Boucher

  • Nontuberculous mycobacteria. II: nested-cohort study of impact on cystic fibrosis lung disease.

    Kenneth N. Olivier;David J. Weber;Ji Hyun Lee;Allison Handler

Frequent Co-Authors

Richard C. Boucher
Richard C. Boucher University of North Carolina at Chapel Hill
Kenneth N. Olivier
Kenneth N. Olivier National Institutes of Health
Garry R. Cutting
Garry R. Cutting Johns Hopkins University School of Medicine
Heymut Omran
Heymut Omran University of Münster
Margaret Rosenfeld
Margaret Rosenfeld University of Washington
Wanda K. O'Neal
Wanda K. O'Neal University of North Carolina at Chapel Hill
Peter R. Durie
Peter R. Durie University of Toronto
Fred A. Wright
Fred A. Wright North Carolina State University
Charles L. Daley
Charles L. Daley National Jewish Health
Kevin L. Winthrop
Kevin L. Winthrop Oregon Health & Science University

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