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George T. Macfarlane

George T. Macfarlane

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Microbiology 88 744 72 180 38349

George T. Macfarlane publications per year

The chart shows the history of publications by George T. Macfarlane between 1980 and 2015, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. George T. Macfarlane published across 36 years, from 1980 to 2015, averaging 5.1 papers a year. Output peaked at 14 publications in 1997. 2 of the 184 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1980 to 2015. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1997. 1980: 1 publication 1981: 0 publications 1982: 2 publications 1983: 0 publications 1984: 4 publications 1985: 1 publication 1986: 5 publications 1987: 3 publications 1988: 10 publications 1989: 8 publications 1990: 4 publications 1991: 8 publications 1992: 6 publications 1993: 7 publications 1994: 5 publications 1995: 11 publications 1996: 4 publications 1997: 14 publications 1998: 4 publications 1999: 4 publications 2000: 6 publications 2001: 5 publications 2002: 7 publications 2003: 4 publications 2004: 8 publications 2005: 9 publications 2006: 3 publications 2007: 7 publications 2008: 9 publications 2009: 5 publications 2010: 2 publications 2011: 8 publications 2012: 2 publications 2013: 6 publications 2014: 1 publication 2015: 1 publication
1980 2015

184 publications in total across all disciplines

View publications per year as a table
George T. Macfarlane: publications per year, 1980 to 2015
Year Publications
1980 1
1981 0
1982 2
1983 0
1984 4
1985 1
1986 5
1987 3
1988 10
1989 8
1990 4
1991 8
1992 6
1993 7
1994 5
1995 11
1996 4
1997 14
1998 4
1999 4
2000 6
2001 5
2002 7
2003 4
2004 8
2005 9
2006 3
2007 7
2008 9
2009 5
2010 2
2011 8
2012 2
2013 6
2014 1
2015 1
Total 184
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George T. Macfarlane publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where George T. Macfarlane sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 64 bars. Horizontal axis: publications, 55–64 to 679+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 135–144 publications. The last bar groups every scientist with 679 publications or more. The highlighted bar, 175–184 publications, is where this scientist sits. 55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55–64 publications 679+

This scientist: 180 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

View publications distribution as a table
Number of Microbiology scientists by publication count, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
Publications Scientists This scientist
55–64 8
65–74 29
75–84 55
85–94 112
95–104 137
105–114 190
115–124 235
125–134 234
135–144 288
145–154 265
155–164 264
165–174 253
175–184 276 180
185–194 190
195–204 234
205–214 208
215–224 198
225–234 155
235–244 161
245–254 160
255–264 146
265–274 139
275–284 148
285–294 115
295–304 96
305–314 88
315–324 106
325–334 65
335–344 76
345–354 64
355–364 62
365–374 65
375–384 61
385–394 34
395–404 44
405–414 36
415–424 35
425–434 29
435–444 33
445–454 34
455–464 25
465–474 26
475–484 20
485–494 19
495–504 16
505–514 17
515–524 23
525–534 14
535–544 14
545–554 18
555–564 12
565–574 7
575–584 9
585–594 9
595–604 9
605–614 7
615–624 9
625–634 7
635–644 4
645–654 5
655–664 6
665–674 7
675–678 3
679+ 99
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George T. Macfarlane D-index placement in Microbiology in 2026

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

No. of scientists
50 100 150
Bar chart with 88 bars. Horizontal axis: D-Index, 40 to 127+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 58 D-Index. The last bar groups every scientist with 127 D-Index or more. The highlighted bar, 88 D-Index, is where this scientist sits. 40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 88 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

View D-Index distribution as a table
Number of Microbiology scientists by D-index, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
D-Index Scientists This scientist
40 30
41 86
42 90
43 117
44 122
45 123
46 108
47 110
48 106
49 109
50 129
51 111
52 116
53 127
54 134
55 134
56 112
57 136
58 162
59 151
60 139
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94
71 93
72 96
73 92
74 80
75 66
76 87
77 60
78 73
79 59
80 57
81 55
82 47
83 77
84 50
85 45
86 42
87 41
88 32 88
89 38
90 35
91 34
92 27
93 26
94 33
95 22
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18
108 14
109 10
110 9
111 7
112 11
113 6
114 15
115 10
116 12
117 7
118 10
119 10
120 11
121 2
122 7
123 12
124 5
125 9
126 6
127+ 95
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Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Biochemistry
  • Enzyme

Fermentation, Biochemistry, Microbiology, Bifidobacterium and Prebiotic are his primary areas of study. The concepts of his Fermentation study are interwoven with issues in Digestion and Propionate. His Propionate research incorporates themes from Protein digestion, Butyrate and Microbial metabolism.

His specific area of interest is Biochemistry, where George T. Macfarlane studies Lipid metabolism. His work in Microbiology covers topics such as Bacteroides which are related to areas like Clostridium and Clostridia. George T. Macfarlane has researched Prebiotic in several fields, including Human nutrition and Inulin.

His most cited work include:

  • Regulation of short-chain fatty acid production (988 citations)
  • Characterization of Bacterial Communities in Feces from Healthy Elderly Volunteers and Hospitalized Elderly Patients by Using Real-Time PCR and Effects of Antibiotic Treatment on the Fecal Microbiota (567 citations)
  • Bacterial metabolism and health-related effects of galacto-oligosaccharides and other prebiotics (557 citations)

What are the main themes of his work throughout his whole career to date?

George T. Macfarlane spends much of his time researching Microbiology, Immunology, Internal medicine, Ulcerative colitis and Inflammatory bowel disease. His studies deal with areas such as 16S ribosomal RNA, Bacteroides, Large intestine, Biofilm and Mucin as well as Microbiology. His Immunology research incorporates elements of Intestinal mucosa, Gastrointestinal tract, Bifidobacterium and Diarrhea.

His work carried out in the field of Bifidobacterium brings together such families of science as Gut flora and Feces. His Ulcerative colitis research includes themes of Mucous membrane and Colitis. As a part of the same scientific family, he mostly works in the field of Inflammatory bowel disease, focusing on Synbiotics and, on occasion, Crohn's disease.

He most often published in these fields:

  • Microbiology (46.15%)
  • Immunology (25.64%)
  • Internal medicine (20.51%)

What were the highlights of his more recent work (between 2007-2015)?

  • Immunology (25.64%)
  • Microbiology (46.15%)
  • Ulcerative colitis (20.51%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Immunology, Microbiology, Ulcerative colitis, Inflammatory bowel disease and Internal medicine. His Immunology research integrates issues from Intestinal mucosa, Gastrointestinal tract, Bifidobacterium and Diarrhea. George T. Macfarlane combines subjects such as Gut flora and Feces with his study of Bifidobacterium.

His work deals with themes such as Bacterial colonization, Lactobacillus acidophilus, Cytokine, Biofilm and Barrett's oesophagus, which intersect with Microbiology. In his research, Crohn's disease and Disease is intimately related to Synbiotics, which falls under the overarching field of Inflammatory bowel disease. His Internal medicine research focuses on Gastroenterology and how it relates to Disease severity.

Between 2007 and 2015, his most popular works were:

  • Bacteria, colonic fermentation, and gastrointestinal health. (458 citations)
  • Fermentation in the human large intestine: its physiologic consequences and the potential contribution of prebiotics. (238 citations)
  • Recommendations for Probiotic Use—2011 Update (177 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Enzyme
  • Biochemistry

George T. Macfarlane mainly investigates Immunology, Inflammatory bowel disease, Ulcerative colitis, Synbiotics and Disease. His Immunology research is multidisciplinary, incorporating perspectives in Necrotizing enterocolitis, Intestinal mucosa and Microbiology. His research in Microbiology focuses on subjects like Dysbiosis, which are connected to Biofilm.

The study incorporates disciplines such as Probiotic, Bacteriotherapy, Immune system, Antibiotic-associated diarrhea and Diarrhea in addition to Inflammatory bowel disease. His research integrates issues of Human gastrointestinal tract, Gastrointestinal tract, Mucous membrane and Bifidobacterium in his study of Immune system. His study in Ulcerative colitis is interdisciplinary in nature, drawing from both Antibiotics and Etiology.

Best Publications

  • Short chain fatty acids in human large intestine, portal, hepatic and venous blood.

    J. H. Cummings;E. W. Pomare;W. J. Branch;C. P. E. Naylor

  • Regulation of short-chain fatty acid production

    Sandra Macfarlane;George T. Macfarlane

  • The control and consequences of bacterial fermentation in the human colon.

    J.H. Cummings;G.T. Macfarlane

  • Bacteria, colonic fermentation, and gastrointestinal health.

    George T Macfarlane;Sandra Macfarlane

  • Characterization of Bacterial Communities in Feces from Healthy Elderly Volunteers and Hospitalized Elderly Patients by Using Real-Time PCR and Effects of Antibiotic Treatment on the Fecal Microbiota

    Sabine Bartosch;Alemu Fite;George T. Macfarlane;Marion E. T. McMurdo

  • Synbiotic therapy (Bifidobacterium longum/Synergy 1) initiates resolution of inflammation in patients with active ulcerative colitis: a randomised controlled pilot trial

    Furrie E;Macfarlane S;Kennedy A;Cummings Jh

  • Bacterial metabolism and health-related effects of galacto-oligosaccharides and other prebiotics

    G.T. Macfarlane;H. Steed;S. Macfarlane

  • Comparison of fermentation reactions in different regions of the human colon

    G.T. Macfarlane;Glenn Gibson;J.H. Cummings

  • Prebiotic digestion and fermentation

    John H Cummings;George T Macfarlane;Hans N Englyst

  • Validation of a Three-Stage Compound Continuous Culture System for Investigating the Effect of Retention Time on the Ecology and Metabolism of Bacteria in the Human Colon

    George T. Macfarlane;S. Macfarlane;G.R. Gibson

  • Functional Food Properties of Non-Digestible Oligosaccharides: A Consensus Report From the ENDO Project (DGXII AIRII-CT94-1095)

    J Van Loo;J Cummings;Nathalie M. Delzenne;H Englyst

  • Changes in predominant bacterial populations in human faeces with age and with Clostridium difficile infection.

    M.J. Hopkins;G.T. Macfarlane

  • Protein degradation by human intestinal bacteria.

    G. T. Macfarlane;J. H. Cummings;C. Allison

  • Enumeration of human colonic bacteria producing phenolic and indolic compounds : effects of pH, carbohydrate availability and retention time on dissimilatory aromatic amino acid metabolism

    E.A. Smith;G.T. Macfarlane

  • Comparison of compositions and metabolic activities of fecal microbiotas in young adults and in antibiotic-treated and non-antibiotic-treated elderly subjects

    Emma J. Woodmansey;Marion E. T. McMurdo;George T. Macfarlane;Sandra Macfarlane

  • Fermentation in the human large intestine: its physiologic consequences and the potential contribution of prebiotics.

    George T. Macfarlane;Sandra Macfarlane

  • Probiotics and prebiotics: can regulating the activities of intestinal bacteria benefit health?

    George T Macfarlane;John H Cummings

  • Growth and activities of sulphate-reducing bacteria in gut contents of healthy subjects and patients with ulcerative colitis

    Glenn Gibson;J.H. Cummings;G.T. Macfarlane

  • Gastrointestinal effects of prebiotics

    J. H. Cummings;G. T. Macfarlane

  • Toll-like receptors-2 ,- 3 and -4 expression patterns on human colon and their regulation by mucosal-associated bacteria

    Elizabeth Furrie;Sandra Macfarlane;George Thomson;George T. Macfarlane

  • Role of intestinal bacteria in nutrient metabolism

    J.H. Cummings;G.T. Macfarlane

Frequent Co-Authors

Sandra Macfarlane
Sandra Macfarlane University of Dundee
John H. Cummings
John H. Cummings University of Dundee
Glenn R. Gibson
Glenn R. Gibson University of Reading
Andrew J. McBain
Andrew J. McBain University of Manchester
Mark E. Shirtliff
Mark E. Shirtliff University of Maryland, Baltimore
Miguel Gueimonde
Miguel Gueimonde Spanish National Research Council
Harry J. Flint
Harry J. Flint University of Aberdeen
Alan W. Walker
Alan W. Walker University of Aberdeen
Peter Gilbert
Peter Gilbert University of Manchester
Nathalie M. Delzenne
Nathalie M. Delzenne Université Catholique de Louvain

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