John R. Shaffer

7.0k total citations
115 papers, 2.6k citations indexed

About

John R. Shaffer is a scholar working on Genetics, Periodontics and Molecular Biology. According to data from OpenAlex, John R. Shaffer has authored 115 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 50 papers in Genetics, 39 papers in Periodontics and 37 papers in Molecular Biology. Recurrent topics in John R. Shaffer's work include Dental Health and Care Utilization (33 papers), Oral microbiology and periodontitis research (30 papers) and Cleft Lip and Palate Research (26 papers). John R. Shaffer is often cited by papers focused on Dental Health and Care Utilization (33 papers), Oral microbiology and periodontitis research (30 papers) and Cleft Lip and Palate Research (26 papers). John R. Shaffer collaborates with scholars based in United States, Belgium and Australia. John R. Shaffer's co-authors include Mary L. Marazita, Eleanor Feingold, Daniel W. McNeil, Richard J. Crout, Robert J. Weyant, Seth M. Weinberg, Daniel E. Weeks, Karen T. Cuenco, X. Wang and Elizabeth J. Leslie and has published in prestigious journals such as Journal of Clinical Investigation, Nature Communications and Nature Genetics.

In The Last Decade

John R. Shaffer

108 papers receiving 2.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John R. Shaffer United States 30 746 689 647 294 273 115 2.6k
Tianxia Wu United States 22 115 0.2× 115 0.2× 182 0.3× 227 0.8× 150 0.5× 40 1.1k
Toshio Ogura Japan 26 106 0.1× 133 0.2× 578 0.9× 133 0.5× 256 0.9× 118 1.9k
Manuela Di Franco Italy 35 54 0.1× 183 0.3× 464 0.7× 377 1.3× 255 0.9× 141 3.1k
Shinji Kosugi Japan 36 50 0.1× 613 0.9× 1.6k 2.5× 422 1.4× 346 1.3× 177 4.4k
Kunio Matsumoto Japan 28 54 0.1× 253 0.4× 452 0.7× 209 0.7× 606 2.2× 84 2.1k
Ji Wan Park South Korea 22 50 0.1× 636 0.9× 446 0.7× 157 0.5× 145 0.5× 47 1.6k
Nobuyoshi Hirose Japan 28 91 0.1× 251 0.4× 889 1.4× 898 3.1× 186 0.7× 112 3.0k
Marie‐Christine Morel‐Kopp Australia 30 142 0.2× 362 0.5× 262 0.4× 219 0.7× 349 1.3× 98 2.4k
Antonio Luigi Pastore Italy 30 48 0.1× 77 0.1× 553 0.9× 211 0.7× 983 3.6× 258 3.8k
M. Boyd Gillespie United States 43 103 0.1× 168 0.2× 511 0.8× 3.1k 10.6× 1.7k 6.4× 160 6.4k

Countries citing papers authored by John R. Shaffer

Since Specialization
Citations

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

Fields of papers citing papers by John R. Shaffer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John R. Shaffer. 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 John R. Shaffer. The network helps show where John R. Shaffer may publish in the future.

Co-authorship network of co-authors of John R. Shaffer

This figure shows the co-authorship network connecting the top 25 collaborators of John R. Shaffer. A scholar is included among the top collaborators of John R. Shaffer 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 John R. Shaffer. John R. Shaffer 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.
Liu, Dongjing, Catherine M. Bender, Kirk I. Erickson, et al.. (2025). DNA methylation associations with cognitive function in early-stage hormone receptor-positive breast cancer patients. Epigenomics. 17(13). 879–889. 1 indexed citations
2.
Naqvi, Sahin, Hanne Hoskens, Meng Yuan, et al.. (2025). Enhanced insights into the genetic architecture of 3D cranial vault shape using pleiotropy-informed GWAS. Communications Biology. 8(1). 439–439.
3.
Blostein, Freida, et al.. (2024). Risk of Postpartum Dental Caries: Survival Analysis of Black/African American and White Women in Appalachia. Women s Health Reports. 5(1). 108–119.
4.
Weyant, Robert J., John R. Shaffer, Betsy Foxman, et al.. (2024). Maternal perceptions of assisting preschool-aged children with toothbrushing. The Journal of the American Dental Association. 155(7). 597–604.
5.
Saeed, Anum, Jubao Duan, Rui Zhou, et al.. (2024). Oral Disease and Atherosclerosis May Be Associated with Overlapping Metabolic Pathways. JDR Clinical & Translational Research. 10(3). 315–323. 1 indexed citations
6.
Lilly, Christa L., et al.. (2024). Effects of depression and stress on oral self‐care among perinatal women in Appalachia: A longitudinal study. Community Dentistry And Oral Epidemiology. 52(6). 871–879. 2 indexed citations
7.
Hoskens, Hanne, Ryan J. Eller, Anthony M. Musolf, et al.. (2023). Joint multi-ancestry and admixed GWAS reveals the complex genetics behind human cranial vault shape. Nature Communications. 14(1). 7436–7436. 13 indexed citations
8.
Matthews, Harold, Hanne Hoskens, Sylvia Singh, et al.. (2023). Exploring regional aspects of 3D facial variation within European individuals. Scientific Reports. 13(1). 3708–3708. 3 indexed citations
9.
Wright, Casey D., Teresa A. Marshall, Katherine Neiswanger, et al.. (2023). Food insecurity and consumption of cariogenic foods in mothers and their two‐year‐old children in Appalachia. Journal of Public Health Dentistry. 83(2). 127–135. 1 indexed citations
10.
Blostein, Freida, et al.. (2023). Bacterial Community Modifies Host Genetics Effect on Early Childhood Caries. Journal of Dental Research. 102(10). 1098–1105. 4 indexed citations
11.
Foxman, Betsy, et al.. (2023). Genome-Wide Analysis of Dental Caries Variability Reveals Genotype-by-Environment Interactions. Genes. 14(3). 736–736. 2 indexed citations
12.
Matthews, Harold, Anthony Penington, Mary L. Marazita, et al.. (2023). Using data‐driven phenotyping to investigate the impact of sex on 3D human facial surface morphology. Journal of Anatomy. 243(2). 274–283. 4 indexed citations
13.
McNeil, Daniel W., Simon Haworth, Tom Dudding, et al.. (2022). Genome-wide Scan of Dental Fear and Anxiety Nominates Novel Genes. Journal of Dental Research. 101(12). 1526–1536. 6 indexed citations
14.
Jansen, Erica C., Andrew D. Jones, Teresa A. Marshall, et al.. (2022). Early Childhood Diet in Relation to Toddler Nighttime Sleep Duration Trajectories. Nutrients. 14(15). 3059–3059. 2 indexed citations
15.
Orlova, Ekaterina, Tom Dudding, Simon Haworth, et al.. (2022). Association of Early Childhood Caries with Bitter Taste Receptors: A Meta-Analysis of Genome-Wide Association Studies and Transcriptome-Wide Association Study. Genes. 14(1). 59–59. 10 indexed citations
16.
Padilla, Carmencita D., Azeez Butali, Wasiu Lanre Adeyemo, et al.. (2020). Parents of Children With Nonsyndromic Orofacial Clefting Show Altered Palate Shape. The Cleft Palate-Craniofacial Journal. 58(7). 847–853. 2 indexed citations
17.
Liu, Dongjing, John R. Shaffer, Theresa A. Koleck, et al.. (2020). Methylation Data Processing Protocol and Comparison of Blood and Cerebral Spinal Fluid Following Aneurysmal Subarachnoid Hemorrhage. Frontiers in Genetics. 11. 671–671. 6 indexed citations
18.
Orlova, Ekaterina, Andrew Yeh, Min Shi, et al.. (2018). Genetic association and differential expression of PITX2 with acute appendicitis. Human Genetics. 138(1). 37–47. 12 indexed citations
19.
Leslie, Elizabeth J., Jenna C. Carlson, John R. Shaffer, et al.. (2017). Association studies of low‐frequency coding variants in nonsyndromic cleft lip with or without cleft palate. American Journal of Medical Genetics Part A. 173(6). 1531–1538. 30 indexed citations
20.
Shaffer, John R., Eleanor Feingold, Xiaojing Wang, et al.. (2012). Heritable patterns of tooth decay in the permanent dentition: principal components and factor analyses. BMC Oral Health. 12(1). 7–7. 29 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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