The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,300
79,803
0.658
* Total Citation Counts Rankings
Ranking Based On Selection :2
gut microbiota
psychiatry
nutrition
psychopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,959
78,101
0.646
* Total Citation Counts Rankings
Ranking Based On Selection :3
Microbiology
microbiome
bacteriophage
bacteriocins
infection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,843
49,919
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :4
Neuroradiology
Stroke
Carotid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,522
42,504
0.445
* Total Citation Counts Rankings
Ranking Based On Selection :5
apoptosis
cell death
inflammation
necrosis
IL-1 cytokine family
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,066
24,636
0.328
* Total Citation Counts Rankings
Ranking Based On Selection :6
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,116
21,165
0.330
* Total Citation Counts Rankings
Ranking Based On Selection :7
Bacteriophage
lactic acid bacteria
bifidobacteria
gut microbiota
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,147
32,719
0.553
* Total Citation Counts Rankings
Ranking Based On Selection :8
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,514
37,013
0.644
* Total Citation Counts Rankings
Ranking Based On Selection :9
Microbiome
lactobacillus
IBS
colorectal cancer
ageing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,701
34,029
0.634
* Total Citation Counts Rankings
Ranking Based On Selection :10
Alzheimer's disease
psychopharmacology
BPSD
late-life depression
cognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,104
21,504
0.457
* Total Citation Counts Rankings
Ranking Based On Selection :11
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,329
19,696
0.425
* Total Citation Counts Rankings
Ranking Based On Selection :12
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,201
14,343
0.317
* Total Citation Counts Rankings
Ranking Based On Selection :13
Neurogastroenterology
Microbiome
Tryptophan
Kynurenine
Stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,853
33,723
0.769
* Total Citation Counts Rankings
Ranking Based On Selection :14
Rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,786
15,686
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :15
dermatology
genodermatoses
atopic dermatitis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,568
18,221
0.460
* Total Citation Counts Rankings
Ranking Based On Selection :16
Bipolar Disorder
Schizophrenia
MRI
psychiatry
genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,752
24,789
0.640
* Total Citation Counts Rankings
Ranking Based On Selection :17
CVD Prevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,364
33,028
0.861
* Total Citation Counts Rankings
Ranking Based On Selection :18
sleep medicine
sleep research
sleep apnea
COPD
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,148
11,560
0.311
* Total Citation Counts Rankings
Ranking Based On Selection :19
Developmental Cognitive Neuroscience
Brain Connectivity
fMRI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,176
16,186
0.447
* Total Citation Counts Rankings
Ranking Based On Selection :20
neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,018
12,711
0.353
* Total Citation Counts Rankings
Ranking Based On Selection :21
Cardiovascualr disease epidemiology
diet and health
epidemiology of self harm and suicide...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,312
10,714
0.332
* Total Citation Counts Rankings
Ranking Based On Selection :22
exosomes/EVs
cancer
biomarkers
therapeutics
pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,699
23,814
0.751
* Total Citation Counts Rankings
Ranking Based On Selection :23
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,687
9,965
0.314
* Total Citation Counts Rankings
Ranking Based On Selection :24
Public Health Nutrition
National Dietary Surveys
Dietary Assessment
Dietary exposures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,997
25,785
0.832
* Total Citation Counts Rankings
Ranking Based On Selection :25
Neuroscience
vascular biology
stroke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,549
9,478
0.310
John Cryan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,300
79,803
0.658
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
Timothy Dinan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,959
78,101
0.646
gut microbiota
psychiatry
nutrition
psychopharmacology
Colin Hill
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,843
49,919
0.510
Microbiology
microbiome
bacteriophage
bacteriocins
infection
Rp Brennan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,522
42,504
0.445
Seamus Martin
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,066
24,636
0.328
apoptosis
cell death
inflammation
necrosis
IL-1 cytokine family
Michael Zaworotko
University of Limerick
Limerick, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,116
21,165
0.330
crystal engineering
pharmaceutical materials
porous materials
pharmaceutical cocrystals
Douwe Van Sinderen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,147
32,719
0.553
Bacteriophage
lactic acid bacteria
bifidobacteria
gut microbiota
Paul Cotter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,514
37,013
0.644
Paul O Toole
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,701
34,029
0.634
Microbiome
lactobacillus
IBS
colorectal cancer
ageing
Brian Lawlor
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,104
21,504
0.457
Alzheimer's disease
psychopharmacology
BPSD
late-life depression
cognition
Kingston Mills
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,329
19,696
0.425
Timothy Foster J
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,201
14,343
0.317
Gerard Clarke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,853
33,723
0.769
Neurogastroenterology
Microbiome
Tryptophan
Kynurenine
Stress
Oliver Fitzgerald
University College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,786
15,686
0.394
Alan D Irvine
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,568
18,221
0.460
dermatology
genodermatoses
atopic dermatitis
Colm Mcdonald
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,752
24,789
0.640
Bipolar Disorder
Schizophrenia
MRI
psychiatry
genetics
Catriona Jennings
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,364
33,028
0.861
Walter Mcnicholas
University College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,148
11,560
0.311
sleep medicine
sleep research
sleep apnea
COPD
Anne Marie Clare Kelly
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,176
16,186
0.447
Developmental Cognitive Neuroscience
Brain Connectivity
fMRI
Michael Hutchinson
University College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,018
12,711
0.353
Ivan J Perry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,312
10,714
0.332
Cardiovascualr disease epidemiology
diet and health
epidemiology of self harm and suicide...
Lorraine O'Driscoll
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,699
23,814
0.751
exosomes/EVs
cancer
biomarkers
therapeutics
pharmacology
Tony Fitzgerald
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,687
9,965
0.314
Janette Walton *
Cork Institute of Technology
Bishopstown, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,997
25,785
0.832
Public Health Nutrition
National Dietary Surveys
Dietary Assessment
Dietary exposures
Christian Waeber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,549
9,478
0.310
Neuroscience
vascular biology
stroke