Sid E. O’Bryant

23.8k citations

264 papers · 8.2k indexed · 5 hit papers · h-index 44

Impact in

Psychiatry and Mental health top 0.2%
- Dementia and Cognitive Impairment Research
Biological Psychiatry top 1%
- Tryptophan and brain disorders

Papers in ⓘ

Psychiatry and Mental health 137
- Dementia and Cognitive Impairment Research 127
Biological Psychiatry 14
- Tryptophan and brain disorders 14

Co-authors: James Hall (125 shared papers)Leigh Johnson (106 shared papers)Gordon Gong (8 shared papers)Melissa Edwards (40 shared papers)Robert C. Barber (42 shared papers)Harald Hampel (10 shared papers)John A. Lucas (4 shared papers)Valerie Hobson (13 shared papers)
Journals: Alzheimer s & Dementia (51 papers)Journal of Alzheimer s Disease (32 papers)Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring (21 papers)Archives of Clinical Neuropsychology (15 papers)Dementia and Geriatric Cognitive Disorders (7 papers)
Partner nations: United States United Kingdom Sweden

In The Last Decade

Sid E. O’Bryant

249 papers receiving 8.0k citations

Hit Papers

5 papers align trajectories log scale

Blood-based biomarkers for Alzheimer’s disease: Current state and future use in a transformed global healthcare landscape 2023 · 121 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2023 Neuron
2018 Nature Reviews Neurology
2018 Acta Neuropathologica
2008 Archives of Neurology
2008 Archives of Neurology

Peers

Countries citing papers authored by Sid E. O’Bryant

Since Specialization

Citations

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

Fields of papers citing papers by Sid E. O’Bryant

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Sid E. O’Bryant, 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 Sid E. O’Bryant Line = papers co-authored together Sid E. O’Bryant links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 264 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Staging Dementia Using Clinical Dementia Rating Scale Sum of Boxes Scores Archives of Neurology ·Sid E. O’Bryant Hit paper breakdown →	2008	597
2	Detecting Dementia With the Mini-Mental State Examination in Highly Educated Individuals Archives of Neurology ·Sid E. O’Bryant, Joy D. Humphreys, Glenn E. Smith, Robert J. Ivnik, Neill R. Graff‐Radford, Ronald C. Petersen, John A. Lucas Hit paper breakdown →	2008	518
3	Blood-based biomarkers for Alzheimer disease: mapping the road to the clinic Nature Reviews Neurology ·Harald Hampel, Sid E. O’Bryant, José Luís Molinuevo, Henrik Zetterberg, Colin L. Masters, Simone Lista, Steven J. Kiddle, Richard Batrla, Kaj Blennow Hit paper breakdown →	2018	464
4	Current state of Alzheimer’s fluid biomarkers Acta Neuropathologica ·José Luís Molinuevo, Scott Ayton, Richard Batrla, Martin M. Bednar, Tobias Bittner, Jeffrey L. Cummings, Anne M. Fagan, Harald Hampel, Michelle M. Mielke, Alvydas Mikulskis, Sid E. O’Bryant, Philip Scheltens, Jeffrey Sevigny, Leslie M. Shaw, Holly Soares, Gary Tong, John Q. Trojanowski, Henrik Zetterberg, Kaj Blennow Hit paper breakdown →	2018	375
5	Comparison of the accuracy of kriging and IDW interpolations in estimating groundwater arsenic concentrations in Texas Environmental Research ·Gordon Gong, Sravan Mattevada, Sid E. O’Bryant	2014	245
6	The future of blood‐based biomarkers for Alzheimer's disease Alzheimer s & Dementia ·Kim Henriksen, Sid E. O’Bryant, Harald Hampel, John Q. Trojanowski, Thomas J. Montine, Andreas Jeromin, Kaj Blennow, Anders Lönneborg, Tony Wyss‐Coray, Holly Soares, Chantal Bazenet, Magnus Sjögren, William T. Hu, Simon Lovestone, M.A. Karsdal, Michael W. Weiner, (unknown)	2013	238
7	Innovative diagnostic tools for early detection of Alzheimer's disease Alzheimer s & Dementia ·Christoph Laske, Hamid R. Sohrabi, Shaun Frost, Karmele López de Ipiña, Peter Garrard, Massimo Buscema, Justin Dauwels, Surjo R. Soekadar, Stephan Mueller, Christoph Linnemann, Stephanie A. Bridenbaugh, Yogesan Kanagasingam, Ralph N. Martins, Sid E. O’Bryant	2014	221
8	Validation of the New Interpretive Guidelines for the Clinical Dementia Rating Scale Sum of Boxes Score in the National Alzheimer's Coordinating Center Database Archives of Neurology ·Sid E. O’Bryant, Laura H. Lacritz, James Hall, Stephen C. Waring, Wenyaw Chan, Zeina G. Khodr, Paul J. Massman, Valerie Hobson, C. Munro Cullum	2010	213
9	Utility of the RBANS in detecting cognitive impairment associated with Alzheimer's disease: Sensitivity, specificity, and positive and negative predictive powers Archives of Clinical Neuropsychology ·Kevin Duff, Joy D. Humphreys‐Clark, Sid E. O’Bryant, J. W. Mold, Randolph B. Schiffer, Patricia B. Sutker	2008	182
10	A Serum Protein–Based Algorithm for the Detection of Alzheimer Disease Archives of Neurology ·Sid E. O’Bryant	2010	173
11	Long-Term Low-Level Arsenic Exposure Is Associated with Poorer Neuropsychological Functioning: A Project FRONTIER Study International Journal of Environmental Research and Public Health ·Sid E. O’Bryant, Melissa Edwards, Chloe V. Menon, Gordon Gong, Robert C. Barber	2011	157
12	Developing novel blood‐based biomarkers for Alzheimer's disease Alzheimer s & Dementia ·Heather M. Snyder, María C. Carrillo, Francine Grodstein, Kim Henriksen, Andreas Jeromin, Simon Lovestone, Michelle M. Mielke, Sid E. O’Bryant, M. Sarasa, Magnus Sj⊘gren, Holly Soares, Jessica L. Teeling, Eugenia Trushina, Malcolm Ward, Tim West, Lisa J. Bain, Diana W. Shineman, Michael W. Weiner, Howard Fillit	2013	131
13	Blood-based biomarkers for Alzheimer’s disease: Current state and future use in a transformed global healthcare landscape Neuron ·Harald Hampel, Yan Hu, Jeffrey L. Cummings, Soeren Mattke, Takeshi Iwatsubo, Akinori Nakamura, Bruno Vellas, Sid E. O’Bryant, Leslie M. Shaw, Min Cho, Richard Batrla, Andrea Vergallo, Kaj Blennow, Jeffrey L. Dage, Suzanne E. Schindler Hit paper breakdown →	2023	121
14	A Blood-Based Screening Tool for Alzheimer's Disease That Spans Serum and Plasma: Findings from TARC and ADNI PLoS ONE ·Sid E. O’Bryant, Guanghua Xiao, Robert C. Barber, Ryan M. Huebinger, Kirk C. Wilhelmsen, Melissa Edwards, Neill R. Graff‐Radford, Rachelle S. Doody, Ramon Diaz‐Arrastia, (unknown)	2011	120
15	A Precision Medicine Initiative for Alzheimer’s disease: the road ahead to biomarker-guided integrative disease modeling Climacteric ·Harald Hampel, Sid E. O’Bryant, Stanley Durrleman, Erfan Younesi, Katrine Rojkova, Valentina Escott‐Price, Jean‐Christophe Corvol, Karl Broich, Bruno Dubois, Simone Lista, (unknown)	2017	104
16	The Arsenic Exposure Hypothesis for Alzheimer Disease Alzheimer Disease & Associated Disorders ·Gordon Gong, Sid E. O’Bryant	2010	97
17	Characterization of Mexican Americans with Mild Cognitive Impairment and Alzheimer's Disease Journal of Alzheimer s Disease ·Sid E. O’Bryant, Leigh Johnson, Valerie Hobson Balldin, Melissa Edwards, Robert C. Barber, Benjamin J. Williams, Michael D. Devous, Blair Cushings, Janice Knebl, James Hall	2012	90
18	Brain-Derived Neurotrophic Factor Levels in Alzheimer's Disease Journal of Alzheimer s Disease ·Sid E. O’Bryant, Valerie Hobson, James Hall, Stephen C. Waring, Wenyan Chan, Paul J. Massman, Laura H. Lacritz, C. Munro Cullum, Ramon Diaz‐Arrastia	2009	86
19	Assessing Neuronal and Astrocyte Derived Exosomes From Individuals With Mild Traumatic Brain Injury for Markers of Neurodegeneration and Cytotoxic Activity Frontiers in Neuroscience ·Charisse N. Winston, Haylie Romero, Maya Ellisman, Sophie N. Nauss, David Julovich, Tori Conger, James Hall, W. Marie Campana, Sid E. O’Bryant, Caroline M. Nievergelt, Dewleen G. Baker, Victoria B. Risbrough, Robert A. Rissman	2019	84
20	Decreased C-Reactive Protein Levels in Alzheimer Disease Journal of Geriatric Psychiatry and Neurology ·Sid E. O’Bryant, Stephen C. Waring, Valerie Hobson, James Hall, Carol Moore, Teodoro Bottiglieri, Paul J. Massman, Ramon Diaz‐Arrastia	2009	84

About Sid E. O’Bryant

Sid E. O’Bryant is a scholar working on Psychiatry and Mental health, Biological Psychiatry, Physiology, Geriatrics and Gerontology and Behavioral Neuroscience, having authored 264 papers that have together received 8.2k indexed citations. Recurring topics across this work include Dementia and Cognitive Impairment Research (127 papers), Alzheimer's disease research and treatments (90 papers), Health, Environment, Cognitive Aging (21 papers), Functional Brain Connectivity Studies (16 papers), Down syndrome and intellectual disability research (14 papers), Tryptophan and brain disorders (14 papers), Nutritional Studies and Diet (14 papers) and Traumatic Brain Injury Research (14 papers). The work is most often cited by research in Psychiatry and Mental health (3.5k citations), Biological Psychiatry (350 citations), Neurology (938 citations), Physiology (2.9k citations) and Geriatrics and Gerontology (430 citations). Sid E. O’Bryant has collaborated with scholars based in United States, United Kingdom and Sweden. Frequent co-authors include James Hall, Leigh Johnson, Gordon Gong, Melissa Edwards, Robert C. Barber, Harald Hampel, John A. Lucas, Valerie Hobson, Kaj Blennow and Neill R. Graff‐Radford. Their work appears in journals such as Alzheimer s & Dementia, Journal of Alzheimer s Disease, Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring, Archives of Clinical Neuropsychology and Dementia and Geriatric Cognitive Disorders.

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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