Ioanna Tzoulaki

Also affiliated with Hammersmith Hospital, British Heart Foundation, Biomedical Research Foundation of the Academy of Athens, NIHR Imperial Biomedical Research Centre, UK Dementia Research Institute, MRC Centre for Environment and Health, Imperial College London, Medical Research Council

Biochemistry, Genetics and Molecular BiologyMedicine

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 1%percentile

5.5Author DataRank

Indexed papers

3in pilot corpus

datarank_citation_only_1hop_v6· scope data_onlyMethodology

Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 3 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

A Nutrient-Wide Association Study on Blood Pressure

Circulation(2012)10.1161/circulationaha.112.114058

Top 4%

5.4DataRank

Top 4%143 citations

Chirag J. Patel, Tomonori Okamura, Queenie Chan, Ian J. Brown, Katsuyuki Miura +10 more

Papers

Driven by 53 papers — median percentile 22. Top paper: “Design and Analysis of Metabolomics Studies in Epidemiologic Research: A Primer on -Omic Technologies”.

Design and Analysis of Metabolomics Studies in Epidemiologic Research: A Primer on -Omic Technologies

American Journal of Epidemiology(2014)10.1093/aje/kwu143

N/A

7.9DataRank · unranked

185 citations

P. Elliott, Ioanna Tzoulaki, Timothy M. D. Ebbels, Ana M. Valdes, Paul Elliott +1 more

A Nutrient-Wide Association Study on Blood Pressure

Circulation(2012)10.1161/circulationaha.112.114058

Top 4%

5.4DataRank

Top 4%143 citations

Chirag J. Patel, Tomonori Okamura, Queenie Chan, Ian J. Brown, Katsuyuki Miura +10 more

Bias in Associations of Emerging Biomarkers With Cardiovascular Disease

JAMA Internal Medicine(2013)10.1001/jamainternmed.2013.3018

N/A

4.9DataRank · unranked

109 citations

Konstantinos C. Siontis, Evangelos Evangelou, John P. A. Ioannidis, Konstantinos CM Siontis, Ioanna Tzoulaki

Use of reclassification for assessment of improved prediction: an empirical evaluation

International Journal of Epidemiology(2011)10.1093/ije/dyr013

N/A

4.4DataRank · unranked

74 citations

George Liberopoulos, John P. A. Ioannidis, Ioanna Tzoulaki

Minimal and Null Predictive Effects for the Most Popular Blood Biomarkers of Cardiovascular Disease

Circulation Research(2012)10.1161/res.0b013e31824da8ad

N/A

4.0DataRank · unranked

70 citations

Ioanna Tzoulaki, John P. A. Ioannidis

What Makes a Good Predictor?

JAMA(2010)10.1001/jama.2010.503

N/A

3.8DataRank · unranked

81 citations

Ioanna Tzoulaki, John P. A. Ioannidis

Global assessment of C-reactive protein and health-related outcomes: an umbrella review of evidence from observational studies and Mendelian randomization studies

European Journal of Epidemiology(2020)10.1007/s10654-020-00681-w

N/A

2.0DataRank · unranked

52 citations

Charalampia Koutsioumpa, Sofia Cividini, Grace Monori, Konstantinos K. Tsilidis, Nikolaos Kretsavos +5 more

Prediction models for diagnosis and prognosis of covid-19: systematic review and critical appraisal

BMJ(2020)10.1136/bmj.m1328

N/A

1.2DataRank · unranked

3190 citations

Ben van Calster, Gary S. Collins, Richard D Riley, Georg Heinze, Ewoud Schuit +52 more

Validity of observational evidence on putative risk and protective factors: appraisal of 3744 meta-analyses on 57 topics

BMC Medicine(2021)10.1186/s12916-021-02020-6

N/A

1.2DataRank · unranked

39 citations

Arnav Agarwal, Ioanna Tzoulaki, Konstantinos K. Tsilidis, Evangelos Evangelou, John P. A. Ioannidis +2 more

Metformin and health outcomes: An umbrella review of systematic reviews with meta‐analyses

European Journal of Clinical Investigation(2021)10.1111/eci.13536

N/A

1.2DataRank · unranked

26 citations

Stefano Celotto, Damiano Pizzol, Danijela Gasevic, Meng‐Meng Ji, Tommaso Barnini +14 more

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational studies and randomised trials

BMJ(2014)10.1136/bmj.g2035

N/A

1.0DataRank · unranked

972 citations

L. Zgaga, Evropi Τheodoratou, Ioanna Tzoulaki, Lina Zgaga, John P. A. Ioannidis

Environmental risk factors and multiple sclerosis: an umbrella review of systematic reviews and meta-analyses

The Lancet Neurology(2015)10.1016/s1474-4422(14)70267-4

N/A

0.977DataRank · unranked

673 citations

Vanesa Bellou, Evangelos Evangelou, John P. A. Ioannidis, Ioanna Tzoulaki, Lazaros Belbasis

External validation of new risk prediction models is infrequent and reveals worse prognostic discrimination

Journal of Clinical Epidemiology(2015)10.1016/j.jclinepi.2014.09.007

N/A

0.922DataRank · unranked

466 citations

Ioanna Tzoulaki, Peter J. Castaldi, John P. A. Ioannidis, George C.M. Siontis

Serum uric acid levels and multiple health outcomes: umbrella review of evidence from observational studies, randomised controlled trials, and Mendelian randomisation studies

BMJ(2017)10.1136/bmj.j2376

N/A

0.900DataRank · unranked

402 citations

Xiangrui Meng, Maria Timofeeva, Ioanna Tzoulaki, Konstantinos K. Tsilidis, Francis S. Collins +3 more

Comparisons of established risk prediction models for cardiovascular disease: systematic review

BMJ(2012)10.1136/bmj.e3318

N/A

0.860DataRank · unranked

307 citations

Konstantinos CM Siontis, George C.M. Siontis, Ioanna Tzoulaki, Konstantinos C. Siontis, John P. A. Ioannidis

The association of depression and all-cause and cause-specific mortality: an umbrella review of systematic reviews and meta-analyses

BMC Medicine(2018)10.1186/s12916-018-1101-z

N/A

0.838DataRank · unranked

266 citations

Nicola Veronese, Marcos Sanches, Brendon Stubbs, Parvaiz A Koul, Trevor Thompson +11 more

Multi-trait association analysis reveals shared genetic loci between Alzheimer’s disease and cardiovascular traits

Nature Communications(2024)10.1038/s41467-024-53452-6

N/A

0.761DataRank · unranked

38 citations

Nurun Fancy, Pei Fang Tan, Devendra Meena, Evangelos Evangelou, Paul Elliott +5 more

Metformin Does Not Affect Cancer Risk: A Cohort Study in the U.K. Clinical Practice Research Datalink Analyzed Like an Intention-to-Treat Trial

Diabetes Care(2014)10.2337/dc14-0584

N/A

0.756DataRank · unranked

153 citations

Despoina Capothanassi, Naomi E. Allen, Evangelos C. Rizos, David S. Lopez, Karin van Veldhoven +7 more

Genetic analysis in European ancestry individuals identifies 517 loci associated with liver enzymes

Nature Communications(2021)10.1038/s41467-021-22338-2

N/A

0.731DataRank · unranked

130 citations

Marijana Vujković, Joshua Elliott, Evangelos Evangelou, Dipender Gill, Mohsen Ghanbari +95 more

Diet, body size, physical activity and risk of prostate cancer: An umbrella review of the evidence

European Journal of Cancer(2016)10.1016/j.ejca.2016.09.026

N/A

0.701DataRank · unranked

106 citations

Ioanna Tzoulaki, Dimitra Karli, Evangelos Evangelou, Evangelia Ntzani, Marc J. Gunter +4 more

Mapping the expanded often inappropriate use of the Framingham Risk Score in the medical literature

Journal of Clinical Epidemiology(2014)10.1016/j.jclinepi.2013.10.021

N/A

0.695DataRank · unranked

11 citations

Aristeidis Seretis, Evangelia Ntzani, John P. A. Ioannidis, Ioanna Tzoulaki

Environmental risk factors and nonpharmacological and nonsurgical interventions for obesity: An umbrella review of meta‐analyses of cohort studies and randomized controlled trials

European Journal of Clinical Investigation(2018)10.1111/eci.12982

N/A

0.628DataRank · unranked

65 citations

Cristiano A. Köhler, Brendon Stubbs, Parvaiz A Koul, Beatrice Bortolato, Francesco Monaco +9 more

Circulating trimethylamine N-oxide in association with diet and cardiometabolic biomarkers: an international pooled analysis

American Journal of Clinical Nutrition(2020)10.1093/ajcn/nqaa430

N/A

0.604DataRank · unranked

55 citations

Xiao‐Ou Shu, David M. Herrington, Steven C. Moore, Katie A. Meyer, Jennifer Ose +21 more

Effect of low‐dose aspirin on health outcomes: An umbrella review of systematic reviews and meta‐analyses

British Journal of Clinical Pharmacology(2020)10.1111/bcp.14310

N/A

0.546DataRank · unranked

37 citations

Jacopo Demurtas, Trevor Thompson, Marco Solmi, Gabriella Pesolillo, Stefano Celotto +13 more

Discovery of rare variants associated with blood pressure regulation through meta-analysis of 1.3 million individuals

UEF eRepo (University of Eastern Finland)(2024)10.17615/k2gw-9005

N/A

0.360DataRank · unranked

10 citations

James R. Staley, M.E. Jørgensen, T. Tuomi, R. Rauramaa, Robin Young +95 more

Appraising the Causal Role of Risk Factors in Coronary Artery Disease and Stroke: A Systematic Review of Mendelian Randomization Studies

Journal of the American Heart Association(2023)10.1161/jaha.122.029040

N/A

0.360DataRank · unranked

10 citations

Loukas Zagkos, Georgios Markozannes, Christos V. Chalitsios, Alexandros‐Georgios Asimakopoulos, Wei Xu +12 more

Identification of protein targets for dyslipidaemia and cardiovascular diseases among people with South Asian ancestry: a mendelian randomisation study

The Lancet Regional Health - Southeast Asia(2025)10.1016/j.lansea.2025.100621

N/A

0.208DataRank · unranked

3 citations

Devendra Meena, A.C. Smith, Jingxian Huang, Georg Otto, Yi-An Ko +6 more

413 A NUTRIENT WIDE ASSOCIATION STUDY ON BLOOD PRESSURE

Journal of Hypertension(2012)10.1097/01.hjh.0000420268.43390.e7

Top 78%

0.104DataRank

Top 78%1 citations

Ioanna Tzoulaki, Queenie Chan, Ian J. Brown, Katsuyuki Miura, Hirotsugu Ueshima +10 more

Serum Metabolites and Heart Failure Risk: MESA and RS

Journal of the American Heart Association(2025)10.1161/jaha.125.044211

N/A

0DataRank · unranked

0 citations

Arjun Sinha, Gonçalo Graça, Ian J. Neeland, Ambarish Pandey, Ioanna Tzoulaki +9 more

Additional file 1 of Validity of observational evidence on putative risk and protective factors: appraisal of 3744 meta-analyses on 57 topics

OPAL (Open@LaTrobe) (La Trobe University)(2021)10.6084/m9.figshare.14913264.v1

N/A

0DataRank · unranked

0 citations

Arnav Agarwal, Ioanna Tzoulaki, Evropi Τheodoratou, Konstantinos K. Tsilidis, Evangelos Evangelou +2 more

Journal of Clinical Epidemiology(2015)10.1016/s0895-4356(14)00478-8

N/A

0DataRank · unranked

0 citations

J Andr, Marko Yurkovich, J. Antonio Aviña‐Zubieta, Jamie Thomas, Mike Gorenchtein +30 more

Genetically predicted circulating concentrations of micronutrients and risk of breast cancer: A Mendelian randomization study

International Journal of Cancer(2020)10.1002/ijc.33246

N/A

0DataRank · unranked

54 citations

Niki Dimou, Dipender Gill, Ioanna Tzoulaki, Neil Murphy, Elio Ríboli +5 more

Platelet-Related Variants Identified by Exomechip Meta-analysis in 157,293 Individuals

UNC Libraries(2020)10.17615/a384-d483

N/A

0DataRank · unranked

0 citations

Jerome I. Rotter, Alex P. Reiner, André G. Uitterlinden, Gonçalo R. Abecasis, Digna R. Velez Edwards +95 more

Exome Genotyping Identifies Pleiotropic Variants Associated with Red Blood Cell Traits

UNC Libraries(2020)10.17615/m864-xv86

N/A

0DataRank · unranked

0 citations

Lisa R. Yanek, Kjell Nikus, Salman M. Tajuddin, Jussi Hernesniemi, Dawn Waterworth +95 more

Large-Scale Exome-wide Association Analysis Identifies Loci for White Blood Cell Traits and Pleiotropy with Immune-Mediated Diseases

UNC Libraries(2020)10.17615/s8sd-h432

Top 100%

0DataRank

Top 100%0 citations

Todd L. Edwards, Jin Li, John M. Starr, Eric Boerwinkle, Yingchang Lu +92 more

Associations of circulating choline and its related metabolites with cardiometabolic biomarkers: an international pooled analysis

American Journal of Clinical Nutrition(2021)10.1093/ajcn/nqab152

N/A

0DataRank · unranked

49 citations

Jae Jeong Yang, Xiao‐Ou Shu, Steven C. Moore, Nicholette D Palmer, Marta Guasch‐Ferré +23 more

Drug repurposing of metformin for Alzheimer’s disease: Combining causal inference in medical records data and systems pharmacology for biomarker identification

medRxiv(2021)10.1101/2021.08.10.21261747

N/A

0DataRank · unranked

8 citations

Bella Vakulenko‐Lagun, Bang Zheng, Colin Magdamo, Bowen Su, Kyle E. Evans +15 more

New alcohol-related genes suggest shared genetic mechanisms with neuropsychiatric disorders

RePEc: Research Papers in Economics(2021)10.17615/haap-2878

N/A

0DataRank · unranked

0 citations

He Gao, Kähönen, M., Stančáková, A., Bartz, T.M., Elliott, P. +93 more

Exploring the causal effect of maternal pregnancy adiposity on offspring adiposity: Mendelian randomisation using polygenic risk scores

BMC Medicine(2022)10.1186/s12916-021-02216-w

N/A

0DataRank · unranked

56 citations

Rebecca Richmond, Ville Karhunen, Gabriel Cuéllar-Partida, Maria Carolina Borges, Verena Zuber +13 more

Causal inference in medical records and complementary systems pharmacology for metformin drug repurposing towards dementia

Nature Communications(2022)10.1038/s41467-022-35157-w

N/A

0DataRank · unranked

49 citations

Bella Vakulenko‐Lagun, Bang Zheng, Colin Magdamo, Bowen Su, Kyle E. Evans +15 more

Finding Correspondence between Metabolomic Features in Untargeted Liquid Chromatography–Mass Spectrometry Metabolomics Datasets

Analytical Chemistry(2022)10.1021/acs.analchem.1c03592

N/A

0DataRank · unranked

26 citations

Ibrahim Karaman, Matthew R. Lewis, Jenny Hällqvist, Manuja Kaluarachchi, Gonçalo Graça +12 more

Dementia risk in patients with type 2 diabetes: Comparing metformin with no pharmacological treatment

Alzheimer s & Dementia(2023)10.1002/alz.13349

N/A

0DataRank · unranked

28 citations

Bowen Su, Sara Ahmadi‐Abhari, Dimitrios Kapogiannis, Ioanna Tzoulaki, Elio Ríboli +2 more

Blood DNA methylation signature of diet quality and association with cardiometabolic traits

European Journal of Preventive Cardiology(2023)10.1093/eurjpc/zwad317

N/A

0DataRank · unranked

21 citations

Alba Fernández‐Sanlés, Álvaro Hernáez, Joana Llauradó-Pont, Jaume Marrugat, Oliver Robinson +4 more

Untargeted metabolomic analysis investigating links between unprocessed red meat intake and markers of inflammation

American Journal of Clinical Nutrition(2023)10.1016/j.ajcnut.2023.08.018

N/A

0DataRank · unranked

14 citations

Gonçalo Graça, Meghana Gadgil, Mackenzie K. Senn, Matthew Allison, Ioanna Tzoulaki +8 more

Metabolomic Profiling of Cholesterol Efflux Capacity in a Multiethnic Population: Insights From MESA

Arteriosclerosis Thrombosis and Vascular Biology(2023)10.1161/atvbaha.122.318222

N/A

0DataRank · unranked

6 citations

Alexander Smith, Rui Pinto, Suzanne Saldanha, Anamika Gangwar, Mandana Pahlavani +8 more

Metabolomic Profile of the Healthy Eating Index-2015 in the Multiethnic Study of Atherosclerosis

Journal of Nutrition(2023)10.1016/j.tjnut.2023.05.030

N/A

0DataRank · unranked

5 citations

Alexis C. Wood, Ibrahim Karaman, Gonçalo Graça, Ioanna Tzoulaki, Victor W. Zhong +4 more

Efficient estimation of weighted cumulative treatment effects by double/debiased machine learning

arXiv (Cornell University)(2023)10.48550/arxiv.2305.02373

N/A

0DataRank · unranked

1 citations

Bang Zheng, Bowen Su, Stan N. Finkelstein, Roy E. Welsch, Kenney Ng +3 more

Mendelian Randomization and Bayesian Colocalization Analysis Implicate Glycoprotein VI as a Potential Drug Target for Cardioembolic Stroke in South Asian Populations

Journal of the American Heart Association(2024)10.1161/jaha.124.035008

N/A

0DataRank · unranked

15 citations

Devendra Meena, James Yarmolinsky, Dipender Gill, Alexander Smith, Marie‐Joe Dib +5 more

Genome-wide scan of Flortaucipir PET levels finds JARID2 associated with cerebral tau deposition

medRxiv(2024)10.1101/2024.10.04.24314853

N/A

0DataRank · unranked

3 citations

Devendra Meena, Annie Lee, Siwei Wu, Logan Dumitrescu, Reisa Sperling +8 more

Prioritizing protein targets for dyslipidaemia and cardiovascular diseases using Mendelian randomization in South Asians

medRxiv(2024)10.1101/2024.12.18.24319223

N/A

0DataRank · unranked

1 citations

A.C. Smith, Jingxian Huang, Georg Otto, Yi-An Ko, James Yarmolinsky +5 more

Pleiotropic effects of PLEC and C1Q on Alzheimer’s disease and cardiovascular traits

Research Square(2024)10.21203/rs.3.rs-3851905/v1

N/A

0DataRank · unranked

0 citations

Nurun Fancy, Pei Fang Tan, Evangelos Evangelou, Devendra Meena, Paul Elliott +5 more

Plasma proteomics in the prediagnostic phase of Parkinson’s disease: a multi-cohort study of 74,000 participants

medRxiv(2025)10.1101/2025.07.30.25332433

N/A

0DataRank · unranked

2 citations

Alexander Smith, Sarah Morgan, Elisabet A. Frick, Fangyu Liu, Vivian Viallon +50 more

Circulating gut microbial metabolites and risk of coronary heart disease: a prospective, multi-stage study

medRxiv(2025)10.1101/2025.06.16.25329214

N/A

0DataRank · unranked

0 citations

Yulu Zheng, Jae Jeong Yang, Deepak Gupta, David M. Herrington, Bing Yu +9 more

Ioanna Tzoulaki

Indexed papers

Top data-sharing exemplar

Papers