Timothy O’Brien

18.0k citations
398 papers · 13.9k · h-index 66

Impact in

  • Genetics top 0.1%
    • Mesenchymal stem cell research
    • Virus-based gene therapy research
  • Aging top 1%

Papers in

  • Molecular Biology 121
    • RNA Interference and Gene Delivery 31
    • Angiogenesis and VEGF in Cancer 25
    • Pluripotent Stem Cells Research 19
  • Surgery 77
    • Tissue Engineering and Regenerative Medicine 25
Co-authors
Frank Barry (49 shared papers)Abhay Pandit (28 shared papers)Mary Murphy (21 shared papers)Zvonimir S. Katušić (36 shared papers)Michael J. Kerin (11 shared papers)Aaron Liew (21 shared papers)Róisín M. Dwyer (9 shared papers)Peter Dockery (22 shared papers)
Journals
Stem Cell Research & Therapy (18 papers)Stem Cell Research (15 papers)Mayo Clinic Proceedings (12 papers)Cytotherapy (8 papers)Biochemical and Biophysical Research Communications (7 papers)
Partner nations
IrelandUnited StatesChina

In The Last Decade

Timothy O’Brien

388 papers receiving 13.4k citations

Peers

Timothy O’Brien
Comparison fields: 5 of 195
  • Genetics 2.7k
  • Aging 177
  • Biomaterials 1.3k
  • Endocrinology, Diabetes and Metabolism 1.2k
  • Rehabilitation 469
Replace Keiichi Fukuda with:
Keiichi Fukuda Japan
Moustapha Kassem Denmark
Ryuichi Morishita Japan
Nikolaos G. Frangogiannis United States
Patrice Delafontaine United States
Qingbo Xu United Kingdom
Pieter A. Doevendans Netherlands
Hiroshi Kawaguchi Japan
Junbo Ge China
Joshua M. Hare United States
Timothy O’Brien relative to Keiichi Fukuda Japan Keiichi Fukuda's profile →
Citations per field
00.5×1.5×2.2×
Keiichi Fukuda · 1×
Citations per year

Countries citing papers authored by Timothy O’Brien

Since Specialization
Citations

This map shows the geographic impact of Timothy O’Brien'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 Timothy O’Brien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Timothy O’Brien more than expected).

Fields of papers citing papers by Timothy O’Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Timothy O’Brien. 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 Timothy O’Brien. The network helps show where Timothy O’Brien may publish in the future.

Co-authors

The 25 scholars most cited alongside Timothy O’Brien, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Timothy O’Brien Line = papers co-authored together Timothy O’Brien links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 398 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Monocyte Chemotactic Protein-1 Secreted by Primary Breast Tumors Stimulates Migration of Mesenchymal Stem Cells
Clinical Cancer Research ·Róisín M. Dwyer, S.M. Potter-Beirne, Kate Harrington, Aoïfe Lowery, E. Hennessy, Mary Murphy, Frank Barry, Timothy O’Brien, Michael J. Kerin
2007370
2
Potential role of mesenchymal stem cells (MSCs) in the breast tumour microenvironment: stimulation of epithelial to mesenchymal transition (EMT)
Breast Cancer Research and Treatment ·Fiachra Martin, Róisín M. Dwyer, John Kelly, Sonja Khan, Mary Murphy, Catherine Curran, Nicola Miller, E. Hennessy, Peter Dockery, Frank Barry, Timothy O’Brien, Michael J. Kerin
2010259
3
Immunogenicity of allogeneic mesenchymal stem cells
Journal of Cellular and Molecular Medicine ·Sabine Schu, Mikhail Nosov, Lisa O’Flynn, Georgina Shaw, Oliver Treacy, Frank Barry, Mary Murphy, Timothy O’Brien, Thomas Ritter
2011253
4
Mesenchymal stem cells enhance recovery and repair following ventilator-induced lung injury in the rat
Thorax ·Gerard F. Curley, Mairéad Hayes, Bilal Ansari, Georgina Shaw, Aideen E. Ryan, Frank Barry, Timothy O’Brien, Daniel O’Toole, John G. Laffey
2011216
5
Employing mesenchymal stem cells to support tumor-targeted delivery of extracellular vesicle (EV)-encapsulated microRNA-379
Oncogene ·Killian P. O’Brien, Sonja Khan, Katie Gilligan, Haroon Zafar, Pierce Lalor, Claire L. Glynn, Cathal O’Flatharta, Helen Ingoldsby, Peter Dockery, Áine de Bhulbh, J. R. Schweber, Keziah John, Martin J. Leahy, Mary Murphy, William M. Gallagher, Timothy O’Brien, Michael J. Kerin, Róisín M. Dwyer
2018191
6
Differential miRNA Expression in Omental Adipose Tissue and in the Circulation of Obese Patients Identifies Novel Metabolic Biomarkers
The Journal of Clinical Endocrinology & Metabolism ·Helen Heneghan, Nicola Miller, O. J. McAnena, Timothy O’Brien, Michael J. Kerin
2011184
7
Effects of Immunosuppressants on Receptor Activator of NF-κB Ligand and Osteoprotegerin Production by Human Osteoblastic and Coronary Artery Smooth Muscle Cells
Biochemical and Biophysical Research Communications ·Lorenz C. Hofbauer, Chaoxiang Shui, B. Lawrence Riggs, Colin R. Dunstan, Thomas C. Spelsberg, Timothy O’Brien, Sundeep Khosla
2001184
8
ER stress contributes to ischemia-induced cardiomyocyte apoptosis
Biochemical and Biophysical Research Communications ·Éva Szegezdi, Angela Duffy, Martin E. O’Mahoney, Susan E. Logue, Louise A. Mylotte, Timothy O’Brien, Afshin Samali
2006180
9
Human mesenchymal stromal cells decrease the severity of acute lung injury induced by E. coli in the rat
Thorax ·James Devaney, Shahd Horie, Claire Masterson, Stephen J. Elliman, Frank Barry, Timothy O’Brien, Gerard F. Curley, D. O'Toole, John G. Laffey
2015165
10
Hyperlipidemia in Patients With Primary and Secondary Hypothyroidism
Mayo Clinic Proceedings ·Timothy O’Brien, Seán F. Dinneen, Peter C. O'Brien, Pasquale Palumbo
1993164
11
Hyperlipidemia and Diabetes Mellitus
Mayo Clinic Proceedings ·Timothy O’Brien, Tu T. Nguyen, Bruce R. Zimmerman
1998163
12
Current tissue engineering and novel therapeutic approaches to axonal regeneration following spinal cord injury using polymer scaffolds
Respiratory Physiology & Neurobiology ·Nicolas N. Madigan, Siobhán S. McMahon, Timothy O’Brien, Michael J. Yaszemski, Anthony J. Windebank
2009157
13
Metabolic Flexibility Permits Mesenchymal Stem Cell Survival in an Ischemic Environment
Stem Cells ·Louise A. Mylotte, Angela Duffy, Mary Murphy, Timothy O’Brien, Afshin Samali, Frank Barry, Éva Szegezdi
2008156
14
Overexpression of HER-2/neu in uterine serous papillary cancer.
PubMed ·Alessandro D. Santin, Stefania Bellone, Murat Gökden, Michela Palmieri, Donna Dunn, Jamshed Agha, Juan J. Roman, Laura F. Hutchins, Sërgio Pecorelli, Timothy O’Brien, Martin J. Cannon, Groesbeck P. Parham
2002154
15
Time-lapse imaging and cell-specific expression profiling reveal dynamic branching and molecular determinants of a multi-dendritic nociceptor in C. elegans
Developmental Biology ·Cody J. Smith, Joseph D. Watson, William C. Spencer, Timothy O’Brien, Byeong Cha, Adi Albeg, Millet Treinin, David M. Miller
2010154
16
Gene Transfer into Rat Mesenchymal Stem Cells: A Comparative Study of Viral and Nonviral Vectors
Stem Cells and Development ·Jill McMahon, Simon Conroy, Mark Lyons, Udo Greiser, Ciara A. O'Shea, Pádraig Strappe, Linda Howard, Mary Murphy, Frank Barry, Timothy O’Brien
2006140
17
The impact of chronic kidney disease on developed countries from a health economics perspective: A systematic scoping review
PLoS ONE ·Sarah Elshahat, Paul Cockwell, Alexander P. Maxwell, Matthew D. Griffin, Timothy O’Brien, Ciarán O’Neill
2020135
18
Therapeutic potential for mesenchymal stem cell transplantation in critical limb ischemia
Stem Cell Research & Therapy ·Aaron Liew, Timothy O’Brien
2012134
19
Fibrin as a Delivery System for Therapeutic Drugs and Biomolecules
Tissue Engineering Part B Reviews ·Ailish Breen, Timothy O’Brien, Abhay Pandit
2009127
20
Motor neurone disease: a hospice perspective.
BMJ ·Timothy O’Brien, Moira Kelly, Cicely Saunders
1992127

About Timothy O’Brien

Timothy O’Brien is a scholar working on Molecular Biology, Surgery, Genetics, Genetics and Physiology, having authored 398 papers that have together received 13.9k indexed citations. Recurring topics across this work include Mesenchymal stem cell research (69 papers), Virus-based gene therapy research (36 papers), Nitric Oxide and Endothelin Effects (32 papers), RNA Interference and Gene Delivery (31 papers), Electrospun Nanofibers in Biomedical Applications (27 papers), Angiogenesis and VEGF in Cancer (25 papers), Tissue Engineering and Regenerative Medicine (25 papers) and Pluripotent Stem Cells Research (19 papers). The work is most often cited by research in Genetics (2.7k citations), Aging (177 citations), Biomaterials (1.3k citations), Endocrinology, Diabetes and Metabolism (1.2k citations) and Rehabilitation (469 citations). Timothy O’Brien has collaborated with scholars based in Ireland, United States and China. Frequent co-authors include Frank Barry, Abhay Pandit, Mary Murphy, Zvonimir S. Katušić, Michael J. Kerin, Aaron Liew, Róisín M. Dwyer, Peter Dockery, Afshin Samali and Tu T. Nguyen. Their work appears in journals such as Stem Cell Research & Therapy, Stem Cell Research, Mayo Clinic Proceedings, Cytotherapy and Biochemical and Biophysical Research Communications.

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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