Carole Johnston

4.5k total citations · 2 hit papers
29 papers, 3.3k citations indexed

About

Carole Johnston is a scholar working on Rheumatology, Surgery and Physiology. According to data from OpenAlex, Carole Johnston has authored 29 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Rheumatology, 10 papers in Surgery and 7 papers in Physiology. Recurrent topics in Carole Johnston's work include Folate and B Vitamins Research (24 papers), Esophageal and GI Pathology (10 papers) and Iron Metabolism and Disorders (4 papers). Carole Johnston is often cited by papers focused on Folate and B Vitamins Research (24 papers), Esophageal and GI Pathology (10 papers) and Iron Metabolism and Disorders (4 papers). Carole Johnston collaborates with scholars based in United Kingdom, Norway and United States. Carole Johnston's co-authors include A. David Smith, Helga Refsum, Ebba Nexø, Robert Clarke, Per Magne Ueland, John M. Scott, Joseph McPartlin, F Engbaek, Jørn Schneede and Kevin M. Bradley and has published in prestigious journals such as PLoS ONE, American Journal of Clinical Nutrition and Neurology.

In The Last Decade

Carole Johnston

29 papers receiving 3.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Facts and Recommendations about Total Homocysteine Determinations: An Expert Opinion

2004 827 citations Helga Refsum, A. David Smith et al. profile →
Homocysteine-Lowering by B Vitamins Slows the Rate of Accelerated Brain Atrophy in Mild Cognitive Impairment: A Randomized Controlled Trial

2010 545 citations A. David Smith, Stephen M. Smith et al. PLoS ONE profile →

Peers

Countries citing papers authored by Carole Johnston

Since Specialization

Citations

This map shows the geographic impact of Carole Johnston's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Carole Johnston with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Carole Johnston more than expected).

Fields of papers citing papers by Carole Johnston

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Carole Johnston. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Carole Johnston. The network helps show where Carole Johnston may publish in the future.

Co-authorship network of co-authors of Carole Johnston

This figure shows the co-authorship network connecting the top 25 collaborators of Carole Johnston. A scholar is included among the top collaborators of Carole Johnston based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Carole Johnston. Carole Johnston is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Genome-wide association reveals that common genetic variation in the kallikrein-kinin system is associated with serum L-arginine levels 2016 ·Thrombosis and Haemostasis ·Fredrik Jernerén, Benjamin Lehne, Ming‐Huei Chen, Robert Luben, Carole Johnston, Amany Elshorbagy, Ruben N. Eppinga, William R. Scott, Elizabeth Adeyeye, (unknown), Rainer H. Böger, Kay‐Tee Khaw, Pim van der Harst, (unknown), Ramachandran S. Vasan, Weihua Zhang, John C. Chambers, Helga Refsum, Jaspal S. Kooner	5
2	Folate and cobalamin status in relation to diet in healthy 2-y-old children 2011 ·American Journal of Clinical Nutrition ·Gry Hay, K Trygg, Andrew Whitelaw, Carole Johnston, Helga Refsum	23
3	Maternal Folate and Cobalamin Status Predicts Vitamin Status in Newborns and 6-Month-Old Infants 2010 ·Journal of Nutrition ·Gry Hay, Torun Clausen, Andrew Whitelaw, K Trygg, Carole Johnston, Tore Henriksen, Helga Refsum	71
4	Homocysteine-Lowering by B Vitamins Slows the Rate of Accelerated Brain Atrophy in Mild Cognitive Impairment: A Randomized Controlled Trial breakdown → 2010 ·PLoS ONE ·A. David Smith, Stephen M. Smith, Celeste A. de Jager, (unknown), Carole Johnston, (unknown), Abderrahim Oulhaj, Kevin M. Bradley, Robin Jacoby, Helga Refsum	545
5	Increases in Plasma Holotranscobalamin Can Be Used to Assess Vitamin B-12 Absorption in Individuals with Low Plasma Vitamin B-12 2009 ·Journal of Nutrition ·Dattatray Bhat, (unknown), Himangi Lubree, Charudatta Joglekar, Sadanand Naik, (unknown), Carole Johnston, Helga Refsum, Caroline Fall, Chittaranjan S. Yajnik	25
6	Plasma vitamin B12 status and cerebral white-matter lesions 2008 ·Journal of Neurology Neurosurgery & Psychiatry ·Lonneke M.L. de Lau, A. David Smith, Helga Refsum, Carole Johnston, Monique M.B. Breteler	87
7	Genetic variation in homocysteine metabolism, cognition, and white matter lesions 2008 ·Neurobiology of Aging ·Lonneke M.L. de Lau, Joyce B. J. van Meurs, André G. Uitterlinden, A. David Smith, Helga Refsum, Carole Johnston, Monique M.B. Breteler	29
8	Folate and cobalamin status in relation to breastfeeding and weaning in healthy infants 2008 ·American Journal of Clinical Nutrition ·Gry Hay, Carole Johnston, Andrew Whitelaw, K Trygg, Helga Refsum	66
9	Polymorphisms in the catechol‐O‐methyltransferase (COMT) gene influence plasma total homocysteine levels 2008 ·American Journal of Medical Genetics Part B Neuropsychiatric Genetics ·Elizabeth M. Tunbridge, Paul J. Harrison, Donald Warden, Carole Johnston, Helga Refsum, A. David Smith	41
10	Human plasma homocysteine levels are associated with the catechol-O-methyltransferase Val158Met polymorphism 2007 ·Biological Psychiatry ·Elizabeth M. Tunbridge, Paul J. Harrison, Donald Warden, Helga Refsum, Carole Johnston, Deidre J. Smith	2
11	Homocysteine and cognitive performance: Modification by the ApoE genotype 2007 ·Neuroscience Letters ·Merrill F. Elias, Michael A. Robbins, Marc M. Budge, Penelope K. Elias, Gregory A. Dore, (unknown), Carole Johnston, Zsuzsanna Nagy	37
12	Plasma folate concentration and cognitive performance: Rotterdam Scan Study 2007 ·American Journal of Clinical Nutrition ·(unknown), Helga Refsum, A. David Smith, Carole Johnston, Monique M.B. Breteler	63
13	Homocysteine, Folate, and Vitamins B6 and B12 Blood Levels in Relation to Cognitive Performance: The Maine-Syracuse Study 2006 ·Psychosomatic Medicine ·Merrill F. Elias, Michael A. Robbins, Marc M. Budge, Penelope K. Elias, (unknown), Carole Johnston, Zsuzsanna Nagy, Christopher J. Bates	75
14	Vitamin B12 and folate deficiency in later life 2003 ·Age and Ageing ·Robert Clarke, J. Grimley Evans, J Schneede, Ebba Nexø, C J Bates, Astrid Fletcher, Ann Prentice, Carole Johnston, Per Magne Ueland, Helga Refsum, Paul Sherliker, Jacqueline Birks, Gary Whitlock, Elizabeth Breeze, John M. Scott	249
15	Screening for vitamin B-12 and folate deficiency in older persons 2003 ·American Journal of Clinical Nutrition ·Robert Clarke, Helga Refsum, Jacqueline Birks, John Grimley Evans, Carole Johnston, Paul Sherliker, Per Magne Ueland, Joern Schneede, Joseph McPartlin, Ebba Nexø, John M. Scott	183
16	Underestimation of the Importance of Homocysteine as a Risk Factor for Cardiovascular Disease in Epidemiological Studies 2001 ·European Journal of Cardiovascular Prevention & Rehabilitation ·Robert Clarke, Sarah Lewington, A. Donald, Carole Johnston, Helga Refsum, Irene Stratton, Paul F. Jacques, Monique M.B. Breteler, Rury R. Holman	58
17	Plasma Total Homocysteine and Cognitive Performance in a Volunteer Elderly Population 2000 ·Annals of the New York Academy of Sciences ·Marc M. Budge, Carole Johnston, Eef Hogervorst, Celeste de Jager, (unknown), Susan D. Iversen, L. Barnetson, (unknown), (unknown), A. David Smith	85
18	Longitudinal Study of Inflammatory Factors in Serum, Cerebrospinal Fluid, and Brain Tissue in Alzheimer Disease 1998 ·Alzheimer Disease & Associated Disorders ·(unknown), Carole Johnston, V. Hugh Perry, Kim A. Jobst, (unknown), A. David Smith	153
19	Synergy Between the Genes for Butyrylcholinesterase K Variant and Apolipoprotein E4 in Late-Onset Confirmed Alzheimer's Disease 1997 ·Human Molecular Genetics ·Donald J. Lehmann, Carole Johnston, A. David Smith	164
20	Influence of the apolipoprotein E genotype on amyloid deposition and neurofibrillary tangle formation in Alzheimer's disease 1995 ·Neuroscience ·Zsuzsanna Nagy, Margaret M. Esiri, K Jobst, Carole Johnston, S. Litchfield, Edith Sim, A. David Smith	211

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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