James P. Simmer

15.7k total citations · 1 hit paper
237 papers, 12.5k citations indexed

About

James P. Simmer is a scholar working on Rheumatology, Molecular Biology and Urology. According to data from OpenAlex, James P. Simmer has authored 237 papers receiving a total of 12.5k indexed citations (citations by other indexed papers that have themselves been cited), including 213 papers in Rheumatology, 163 papers in Molecular Biology and 82 papers in Urology. Recurrent topics in James P. Simmer's work include Bone and Dental Protein Studies (213 papers), dental development and anomalies (140 papers) and Periodontal Regeneration and Treatments (81 papers). James P. Simmer is often cited by papers focused on Bone and Dental Protein Studies (213 papers), dental development and anomalies (140 papers) and Periodontal Regeneration and Treatments (81 papers). James P. Simmer collaborates with scholars based in United States, South Korea and Japan. James P. Simmer's co-authors include Jan C.‐C. Hu, A.G. Fincham, John D. Bartlett, Yasuo Yamakoshi, H.C. Margolis, Janet Moradian‐Oldak, Jung‐Wook Kim, Elia Beniash, C.‐C. Hu and Ok Hee Ryu and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and PLoS ONE.

In The Last Decade

James P. Simmer

234 papers receiving 12.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The Structural Biology of the Developing Dental Enamel Matrix

1999 502 citations A.G. Fincham, Janet Moradian‐Oldak et al. profile →

Peers

Countries citing papers authored by James P. Simmer

Since Specialization

Citations

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

Fields of papers citing papers by James P. Simmer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James P. Simmer. 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 James P. Simmer. The network helps show where James P. Simmer may publish in the future.

Co-authorship network of co-authors of James P. Simmer

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Novel WDR72 Mutations Causing Hypomaturation Amelogenesis Imperfecta 2023 ·Journal of Personalized Medicine ·Youn‐Jung Kim, (unknown), Yejin Lee, Figen Seymen, Mine Koruyucu, Yelda Kasımoğlu, James P. Simmer, Jan C.‐C. Hu, Jung‐Wook Kim	5
2	PAX9 mutations and genetic synergism in familial tooth agenesis 2023 ·Annals of the New York Academy of Sciences ·(unknown), Yin‐Lin Wang, (unknown), Chia‐Hui Lin, (unknown), Yi‐Jane Chen, (unknown), James P. Simmer, Jan C.‐C. Hu, Shih‐Kai Wang	9
3	Phenotypic variability in LAMA3 ‐associated amelogenesis imperfecta 2022 ·Oral Diseases ·Shih‐Kai Wang, Hong Zhang, Yin‐Lin Wang, Figen Seymen, Mine Koruyucu, James P. Simmer, Jan C.‐C. Hu	9
4	LAMB3 Mutations Causing Autosomal-dominant Amelogenesis Imperfecta 2013 ·Journal of Dental Research ·Jae‐Weon Kim, Figen Seymen, Kyung Eun Lee, Jung Ho Ko, Mehmet Yıldırım, Elif Bahar Tuna, Koray Gençay, Teo Jeon Shin, (unknown), James P. Simmer, Jan C.‐C. Hu	51
5	Why Does Enamel in <i>Klk4</i>-Null Mice Break above the Dentino-Enamel Junction? 2011 ·Cells Tissues Organs ·James P. Simmer, Yuanyuan Hu, Amelia S. Richardson, John D. Bartlett, Jan C.‐C. Hu	24
6	Regulation of calcium phosphate formation by amelogenins under physiological conditions 2011 ·European Journal Of Oral Sciences ·Seo‐Young Kwak, Samantha Green, Felicitas B. Bidlack, Elia Beniash, Yasuo Yamakoshi, James P. Simmer, H.C. Margolis	26
7	Consequences for enamel development and mineralization resulting from loss of function of ameloblastin or enamelin 2009 ·European Journal Of Oral Sciences ·Charles E. Smith, Rima Wazen, Yuanyuan Hu, S. Zalzal, Antonio Nanci, James P. Simmer, Jan C.‐C. Hu	59
8	Porcine Dentin Sialophosphoprotein 2008 ·Journal of Biological Chemistry ·Yasuo Yamakoshi, Yuhe Lu, Jan C.‐C. Hu, Jung‐Wook Kim, Takanori Iwata, Kazuyuki Kobayashi, Takatoshi Nagano, Fumiko Yamakoshi, Yuanyuan Hu, M. Fukae, James P. Simmer	41
9	Enamel Formation and Amelogenesis Imperfecta 2007 ·Cells Tissues Organs ·Jan C.‐C. Hu, Yong‐Hee P. Chun, (unknown), James P. Simmer	195
10	Porcine dentin matrix protein 1: gene structure, cDNA sequence, and expression in teeth 2006 ·European Journal Of Oral Sciences ·Jung‐Wook Kim, Yasuo Yamakoshi, Takanori Iwata, Yuan Hu, Hengmin Zhang, Jan C.‐C. Hu, James P. Simmer	15
11	Dentin Sialophosphoprotein Is Processed by MMP-2 and MMP-20 in Vitro and in Vivo 2006 ·Journal of Biological Chemistry ·Yasuo Yamakoshi, Jan C.‐C. Hu, Takanori Iwata, Kazuyuki Kobayashi, M. Fukae, James P. Simmer	115
12	Expression, Structure, and Function of Enamel Proteinases 2002 ·Connective Tissue Research ·James P. Simmer, Jan C.‐C. Hu	182
13	Enamelysin and kallikrein‐4 mRNA expression in developing mouse molars 2002 ·European Journal Of Oral Sciences ·Jan C.‐C. Hu, Xiaoling Sun, Chuhua Zhang, Shengxi Liu, John D. Bartlett, James P. Simmer	106
14	A comparison of enamelin and amelogenin expression in developing mouse molars 2001 ·European Journal Of Oral Sciences ·Jan C.‐C. Hu, Xiaoling Sun, Chuhua Zhang, James P. Simmer	84
15	Enamelysin mRNA Displays a Developmental Defined Pattern of Expression and Encodes a Protein which Degrades Amelogenin 1998 ·Connective Tissue Research ·John D. Bartlett, Ok Hee Ryu, Jun Xue, James P. Simmer, H.C. Margolis	70
16	Proteolytic activity of opossum tooth extracts 1998 ·European Journal Of Oral Sciences ·Ok Hee Ryu, (unknown), Chengfei Zhang, Qian Qin, Janet Moradian‐Oldak, A.G. Fincham, James P. Simmer	4
17	Molecular cloning and mRNA tissue distribution of a novel matrix metalloproteinase isolated from porcine enamel organ 1996 ·Gene ·John D. Bartlett, James P. Simmer, Jun Xue, H.C. Margolis, Edgard C. Moreno	181
18	Alternative Splicing of Amelogenins 1995 ·Connective Tissue Research ·James P. Simmer	51
19	Control of ameloblast differentiation 1995 ·The International Journal of Developmental Biology ·M Zeichner‐David, Thomas G.H. Diekwisch, A.G. Fincham, Eduardo C. Lau, Mary MacDougall, Janet Moradian‐Oldak, James P. Simmer, Malcolm L. Snead, H.C. Slavkin	141
20	Isolation and characterization of a mouse amelogenin expressed in Escherichia coli 1994 ·Calcified Tissue International ·James P. Simmer, Eduardo C. Lau, C.‐C. Hu, Takaaki Aoba, Martin P. Lacey, David Lee Nelson, M Zeichner‐David, Malcolm L. Snead, H.C. Slavkin, A.G. Fincham	179

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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