Citation Rankings
Highly Cited Researchers
Africa Highly Cited Researchers CitationMedical and Health Sciences / Medical Biochemistry Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Clinical Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,983
57,286
0.939
* Total Citation Counts Rankings
Ranking Based On Selection :2
Functional Foods and Nutraceuticals...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,355
12,397
0.609
* Total Citation Counts Rankings
Ranking Based On Selection :3
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,477
7,421
0.450
* Total Citation Counts Rankings
Ranking Based On Selection :4
Biochemical & Molecular Toxicology
Chemoprevention
Nutrigenomics
Signal Transduction Mechanisms
Antioxidant Redox Mechanisms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,348
7,954
0.487
* Total Citation Counts Rankings
Ranking Based On Selection :5
Computational Systems Biology
Metabolic Control Analysis
Whole Body Modelling
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,102
3,105
0.257
* Total Citation Counts Rankings
Ranking Based On Selection :6
Research and Innovation
Molecular nutrition
Polyphenols
Functional foods
Antioxidants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,273
4,189
0.408
* Total Citation Counts Rankings
Ranking Based On Selection :7
Biochemistry and Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,119
5,306
0.582
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,108
4,510
0.495
* Total Citation Counts Rankings
Ranking Based On Selection :9
Biochemistry
Systems Biology
Code Biology
Relational Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,842
2,233
0.253
* Total Citation Counts Rankings
Ranking Based On Selection :10
Medical Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,648
4,380
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :11
Biochemistry and Molecular biology
Plant-microbe interactions
Innate immunity
Metabolomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,627
4,592
0.532
* Total Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,494
5,172
0.609
* Total Citation Counts Rankings
Ranking Based On Selection :13
microbial genetics
microbial evolution
microbial systematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,458
4,483
0.530
* Total Citation Counts Rankings
Ranking Based On Selection :14
Enzymology
comparative genomics
structural and functional genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,776
1,300
0.167
* Total Citation Counts Rankings
Ranking Based On Selection :15
Phytomedicine
Biochemical Toxicology
Reproductive Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,163
3,340
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :16
Type 2 diabetes
animal model
nutrition
functional foods
medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,507
4,660
0.716
* Total Citation Counts Rankings
Ranking Based On Selection :17
Cellulase
Seaweeds
Macroalgae
Fucoidan
Bioproducts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,975
3,204
0.536
* Total Citation Counts Rankings
Ranking Based On Selection :18
Toxicology
Phytomedicine & Drug Discovery/Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,779
5,241
0.907
* Total Citation Counts Rankings
Ranking Based On Selection :19
Plant biochemistry and molecular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,743
2,113
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :20
toxicology
phytomedicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,658
2,419
0.428
* Total Citation Counts Rankings
Ranking Based On Selection :21
Nutritional Biochemistry and Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,500
2,657
0.483
* Total Citation Counts Rankings
Ranking Based On Selection :22
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,487
3,564
0.650
* Total Citation Counts Rankings
Ranking Based On Selection :23
Biotechnology
Green Chemistry
Biocatalysis
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,409
2,393
0.442
* Total Citation Counts Rankings
Ranking Based On Selection :24
Biochemistry
Immunology
Molecular Biology
Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,245
2,808
0.535
* Total Citation Counts Rankings
Ranking Based On Selection :25
Biochemistry
Plant:microbe interactions
Innate immunity
Proteomics
Venomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,227
3,135
0.600
* Total Citation Counts Rankings
Rankings
7,011
11
2
Ranking Based On Selection: 1
Nahla Anber
Mansoura University
Mansoura, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,983
57,286
0.939
Clinical Biochemistry
* Total Citation Counts Rankings
Rankings
38,333
20
1
Ranking Based On Selection: 2
Ganiyu Oboh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,355
12,397
0.609
Functional Foods and Nutraceuticals...
* Total Citation Counts Rankings
Rankings
51,129
61
11
Ranking Based On Selection: 3
Sanaa Eissa
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,477
7,421
0.450
* Total Citation Counts Rankings
Rankings
51,688
25
7
Ranking Based On Selection: 4
Olatunde Farombi
University of Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,348
7,954
0.487
Biochemical & Molecular Toxicology
Chemoprevention
Nutrigenomics
Signal Transduction Mechanisms
Antioxidant Redox Mechanisms
* Total Citation Counts Rankings
Rankings
76,240
251
37
Ranking Based On Selection: 5
Snoep Jl
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,102
3,105
0.257
Computational Systems Biology
Metabolic Control Analysis
Whole Body Modelling
Epidemiology
* Total Citation Counts Rankings
Rankings
92,838
3
3
Ranking Based On Selection: 6
Theeshan Bahorun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,273
4,189
0.408
Research and Innovation
Molecular nutrition
Polyphenols
Functional foods
Antioxidants
* Total Citation Counts Rankings
Rankings
106,379
148
26
Ranking Based On Selection: 7
Olfat Shaker
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,119
5,306
0.582
Biochemistry and Molecular Biology
* Total Citation Counts Rankings
Rankings
106,507
378
28
Ranking Based On Selection: 8
Louis H Nel
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,108
4,510
0.495
* Total Citation Counts Rankings
Rankings
110,145
393
59
Ranking Based On Selection: 9
Jan-Hendrik Hofmeyr
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,842
2,233
0.253
Biochemistry
Systems Biology
Code Biology
Relational Biology
* Total Citation Counts Rankings
Rankings
112,944
160
5
Ranking Based On Selection: 10
Hanaa Ahmed
National Research Center, Egypt
Cairo Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,648
4,380
0.506
Medical Biochemistry
* Total Citation Counts Rankings
Rankings
113,257
413
16
Ranking Based On Selection: 11
Ian Dubery
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,627
4,592
0.532
Biochemistry and Molecular biology
Plant-microbe interactions
Innate immunity
Metabolomics
* Total Citation Counts Rankings
Rankings
115,264
169
28
Ranking Based On Selection: 12
Laila Ahmed Rashed
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,494
5,172
0.609
* Total Citation Counts Rankings
Rankings
115,849
427
35
Ranking Based On Selection: 13
Emma Steenkamp
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,458
4,483
0.530
microbial genetics
microbial evolution
microbial systematics
* Total Citation Counts Rankings
Rankings
127,153
189
9
Ranking Based On Selection: 14
Hamza El Dorry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,776
1,300
0.167
Enzymology
comparative genomics
structural and functional genomics
* Total Citation Counts Rankings
Rankings
138,939
73
3
Ranking Based On Selection: 15
Musa Toyin Yakubu
University of Ilorin
Ilorin, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,163
3,340
0.466
Phytomedicine
Biochemical Toxicology
Reproductive Biochemistry
* Total Citation Counts Rankings
Rankings
153,667
601
50
Ranking Based On Selection: 16
Shahidul Islam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,507
4,660
0.716
Type 2 diabetes
animal model
nutrition
functional foods
medicinal plants
* Total Citation Counts Rankings
Rankings
167,617
667
15
Ranking Based On Selection: 17
Brett Pletschke
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,975
3,204
0.536
Cellulase
Seaweeds
Macroalgae
Fucoidan
Bioproducts
* Total Citation Counts Rankings
Rankings
173,304
115
1
Ranking Based On Selection: 18
Osasenaga Macdonald Ighodaro
Lead City University Ibadan
Ibadan, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,779
5,241
0.907
Toxicology
Phytomedicine & Drug Discovery/Development
* Total Citation Counts Rankings
Rankings
174,379
60
1
Ranking Based On Selection: 19
Francis Wachira
South Eastern Kenya University
Kitui County, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,743
2,113
0.368
Plant biochemistry and molecular biology
* Total Citation Counts Rankings
Rankings
176,947
123
7
Ranking Based On Selection: 20
Musbau Adewumi Akanji
University of Ilorin
Ilorin, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,658
2,419
0.428
* Total Citation Counts Rankings
Rankings
181,954
129
6
Ranking Based On Selection: 21
Afolabi Akintunde Akindahunsi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,500
2,657
0.483
Nutritional Biochemistry and Toxicology
* Total Citation Counts Rankings
Rankings
182,378
324
13
Ranking Based On Selection: 22
Mahmoud Sitohy
Zagazig University
Sharqia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,487
3,564
0.650
* Total Citation Counts Rankings
Rankings
184,966
762
96
Ranking Based On Selection: 23
Dean Brady
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,409
2,393
0.442
Biotechnology
Green Chemistry
Biocatalysis
Biochemistry
* Total Citation Counts Rankings
Rankings
190,401
347
33
Ranking Based On Selection: 24
Ahmed M Salem
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,245
2,808
0.535
Biochemistry
Immunology
Molecular Biology
Biotechnology
* Total Citation Counts Rankings
Rankings
191,053
787
40
Ranking Based On Selection: 25
Lizelle Piater
University of Johannesburg
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,227
3,135
0.600
Biochemistry
Plant:microbe interactions
Innate immunity
Proteomics
Venomics