O. Brennan

969 total citations
25 papers, 530 citations indexed

About

O. Brennan is a scholar working on Orthopedics and Sports Medicine, Molecular Biology and Oncology. According to data from OpenAlex, O. Brennan has authored 25 papers receiving a total of 530 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Orthopedics and Sports Medicine, 13 papers in Molecular Biology and 6 papers in Oncology. Recurrent topics in O. Brennan's work include Bone health and osteoporosis research (16 papers), Bone Metabolism and Diseases (12 papers) and Bone health and treatments (6 papers). O. Brennan is often cited by papers focused on Bone health and osteoporosis research (16 papers), Bone Metabolism and Diseases (12 papers) and Bone health and treatments (6 papers). O. Brennan collaborates with scholars based in Ireland, United States and United Kingdom. O. Brennan's co-authors include Fergal J. O’Brien, Oran D. Kennedy, Susan M. Rackard, Thomas C Lee, T. Clive Lee, David Taylor, Denise M. O’Gorman, Laoise M. McNamara, Thorfinnur Gunnlaugsson and Brenton Cavanagh and has published in prestigious journals such as Spine, Journal of Biomechanics and Bone.

In The Last Decade

O. Brennan

25 papers receiving 522 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
O. Brennan Ireland 16 258 221 119 117 106 25 530
Alexander J. Makowski United States 12 262 1.0× 173 0.8× 87 0.7× 103 0.9× 110 1.0× 16 546
Satya S. Varanasi United Kingdom 10 166 0.6× 388 1.8× 148 1.2× 117 1.0× 59 0.6× 15 759
Gudrun Schlewitz Germany 11 174 0.7× 145 0.7× 79 0.7× 209 1.8× 176 1.7× 16 484
Pamela J. Sherman United States 8 240 0.9× 152 0.7× 87 0.7× 139 1.2× 191 1.8× 13 644
Amy Creecy United States 16 199 0.8× 191 0.9× 75 0.6× 107 0.9× 68 0.6× 28 559
Dan Faibish United States 9 273 1.1× 341 1.5× 130 1.1× 70 0.6× 86 0.8× 11 792
Kai Zheng China 12 61 0.2× 158 0.7× 50 0.4× 114 1.0× 98 0.9× 25 433
Erik A. Taylor United States 9 151 0.6× 125 0.6× 47 0.4× 51 0.4× 55 0.5× 11 356
Phaedra Messmer Austria 7 255 1.0× 125 0.6× 143 1.2× 82 0.7× 55 0.5× 10 380
Li Yin China 13 52 0.2× 112 0.5× 95 0.8× 186 1.6× 135 1.3× 30 565

Countries citing papers authored by O. Brennan

Since Specialization
Citations

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

Fields of papers citing papers by O. Brennan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of O. Brennan

This figure shows the co-authorship network connecting the top 25 collaborators of O. Brennan. A scholar is included among the top collaborators of O. Brennan 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 O. Brennan. O. Brennan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Brennan, O., John E. Moore, & B. Cherie Millar. (2022). Does social deprivation correlate with meningococcal MenACWY, Hib/MenC and 4CMenB/Meningococcal Group B vaccine uptake in Northern Ireland?. PubMed. 91(1). 9–18. 1 indexed citations
2.
Brennan, O., Joseph Sweeney, Amro Widaa, et al.. (2017). A Natural, Calcium-Rich Marine Multi-mineral Complex Preserves Bone Structure, Composition and Strength in an Ovariectomised Rat Model of Osteoporosis. Calcified Tissue International. 101(4). 445–455. 23 indexed citations
3.
Sophocleous, Antonia, J. Renwick Beattie, Niamh M. Cummins, et al.. (2017). Raman spectroscopy predicts the link between claw keratin and bone collagen structure in a rodent model of oestrogen deficiency. Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease. 1864(2). 398–406. 25 indexed citations
4.
Comby, Steve, et al.. (2016). Two-Photon Luminescent Bone Imaging Using Europium Nanoagents. Chem. 1(3). 438–455. 62 indexed citations
5.
Brennan, O., et al.. (2015). Incorporation of the natural marine multi-mineral dietary supplement Aquamin enhances osteogenesis and improves the mechanical properties of a collagen-based bone graft substitute. Journal of the mechanical behavior of biomedical materials. 47. 114–123. 19 indexed citations
6.
7.
Brennan, O., J.S. Kuliwaba, T. Clive Lee, et al.. (2012). Temporal Changes in Bone Composition, Architecture, and Strength Following Estrogen Deficiency in Osteoporosis. Calcified Tissue International. 91(6). 440–449. 31 indexed citations
8.
Holland, Jane, et al.. (2011). Subchondral trabecular structural changes in the proximal tibia in an ovine model of increased bone turnover. Journal of Anatomy. 218(6). 619–624. 11 indexed citations
9.
Ismail, Siti Izera, et al.. (2011). Encapsulation of cardiac stem cells in superoxide dismutase-loaded alginate prevents doxorubicin-mediated toxicity. Journal of Tissue Engineering and Regenerative Medicine. 7(4). 302–311. 16 indexed citations
10.
O’Gorman, Denise M., et al.. (2011). The Marine‐derived, Multi‐mineral formula, Aquamin, Enhances Mineralisation of Osteoblast Cells In Vitro. Phytotherapy Research. 26(3). 375–380. 23 indexed citations
11.
Brennan, O., Fergal J. O’Brien, & Laoise M. McNamara. (2011). Estrogen Plus Estrogen Receptor Antagonists Alter Mineral Production by Osteoblasts In Vitro. Hormone and Metabolic Research. 44(1). 47–53. 15 indexed citations
12.
Brennan, O., Oran D. Kennedy, Thomas C Lee, et al.. (2010). The effects of estrogen deficiency and bisphosphonate treatment on tissue mineralisation and stiffness in an ovine model of osteoporosis. Journal of Biomechanics. 44(3). 386–390. 19 indexed citations
13.
Brennan, O., et al.. (2010). Effects of estrogen deficiency and bisphosphonate therapy on osteocyte viability and microdamage accumulation in an ovine model of osteoporosis. Journal of Orthopaedic Research®. 29(3). 419–424. 31 indexed citations
14.
Kennedy, Oran D., O. Brennan, Susan M. Rackard, et al.. (2009). Variation of trabecular microarchitectural parameters in cranial, caudal and mid‐vertebral regions of the ovine L3 vertebra. Journal of Anatomy. 214(5). 729–735. 20 indexed citations
15.
Brennan, O., Oran D. Kennedy, Thomas C Lee, Susan M. Rackard, & Fergal J. O’Brien. (2009). Biomechanical properties across trabeculae from the proximal femur of normal and ovariectomised sheep. Journal of Biomechanics. 42(4). 498–503. 53 indexed citations
16.
Kennedy, Oran D., et al.. (2009). Structural adaptation and intracortical bone turnover in an ovine model of osteoporosis. Journal of Orthopaedic Research®. 28(2). 248–251. 13 indexed citations
17.
Kennedy, Oran D., O. Brennan, Susan M. Rackard, et al.. (2008). The effects of increased intracortical remodeling on microcrack behaviour in compact bone. Bone. 43(5). 889–893. 27 indexed citations
18.
Kennedy, Oran D., et al.. (2008). Effects of High Bone Turnover on the Biomechanical Properties of the L3 Vertebra in an Ovine Model of Early Stage Osteoporosis. Spine. 33(23). 2518–2523. 18 indexed citations
19.
Kennedy, Oran D., O. Brennan, Susan M. Rackard, et al.. (2008). Effects of ovariectomy on bone turnover, porosity, and biomechanical properties in ovine compact bone 12 months postsurgery. Journal of Orthopaedic Research®. 27(3). 303–309. 42 indexed citations
20.
O’Brien, Fergal J., et al.. (2005). Microcracks in cortical bone: How do they affect bone biology?. Current Osteoporosis Reports. 3(2). 39–45. 48 indexed citations

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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