John P. Pennypacker

1.2k total citations
19 papers, 986 citations indexed

About

John P. Pennypacker is a scholar working on Rheumatology, Cell Biology and Immunology and Allergy. According to data from OpenAlex, John P. Pennypacker has authored 19 papers receiving a total of 986 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Rheumatology, 11 papers in Cell Biology and 11 papers in Immunology and Allergy. Recurrent topics in John P. Pennypacker's work include Osteoarthritis Treatment and Mechanisms (14 papers), Cell Adhesion Molecules Research (11 papers) and Proteoglycans and glycosaminoglycans research (10 papers). John P. Pennypacker is often cited by papers focused on Osteoarthritis Treatment and Mechanisms (14 papers), Cell Adhesion Molecules Research (11 papers) and Proteoglycans and glycosaminoglycans research (10 papers). John P. Pennypacker collaborates with scholars based in United States, Japan and Belgium. John P. Pennypacker's co-authors include John R. Hassell, Robert M. Pratt, Cindy Lewis, Paul F. Goetinck, Kenneth M. Yamada, Hynda K. Kleinman, Kenneth S. Brown, Koji Kimata, George R. Martin and A. Tyl Hewitt and has published in prestigious journals such as Cell, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

John P. Pennypacker

19 papers receiving 906 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 P. Pennypacker United States 15 479 379 360 331 169 19 986
H.-J. Barrach United States 15 606 1.3× 643 1.7× 326 0.9× 459 1.4× 164 1.0× 27 1.3k
A. Tyl Hewitt United States 20 571 1.2× 322 0.8× 140 0.4× 300 0.9× 100 0.6× 30 1.2k
Y. Yamada United States 11 450 0.9× 246 0.6× 381 1.1× 172 0.5× 171 1.0× 20 921
Birgit Kobbe Germany 16 369 0.8× 298 0.8× 342 0.9× 362 1.1× 150 0.9× 25 960
Olena Jacenko United States 20 476 1.0× 178 0.5× 398 1.1× 254 0.8× 230 1.4× 35 1.1k
Margaret S. Vail United States 7 195 0.4× 214 0.6× 352 1.0× 213 0.6× 84 0.5× 7 734
Wouter de Wet United States 11 475 1.0× 162 0.4× 180 0.5× 304 0.9× 417 2.5× 12 964
Silvia R. Padilla United States 8 290 0.6× 331 0.9× 827 2.3× 322 1.0× 94 0.6× 8 1.2k
Manuel Romarı́s Spain 9 544 1.1× 544 1.4× 147 0.4× 175 0.5× 139 0.8× 11 1.0k
Y Oike Japan 13 711 1.5× 945 2.5× 289 0.8× 407 1.2× 128 0.8× 15 1.2k

Countries citing papers authored by John P. Pennypacker

Since Specialization
Citations

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

Fields of papers citing papers by John P. Pennypacker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John P. Pennypacker

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

All Works

19 of 19 papers shown
1.
Pennypacker, John P., et al.. (1989). Butyric acid causes morphological changes in cultured chondrocytes through alterations in the extracellular matrix. Journal of Cellular Physiology. 138(1). 197–204. 10 indexed citations
2.
Kimata, Koji, Masahiro Takeda, Sakaru Suzuki, et al.. (1983). Presence of link protein in cartilage from cmd/cmd (cartilage matrix deficiency) mice. Archives of Biochemistry and Biophysics. 226(2). 506–516. 7 indexed citations
3.
Kimata, Koji, Jean‐Michel Foidart, John P. Pennypacker, et al.. (1982). Immunofluorescence localization of fibronectin in chondrosarcoma cartilage matrix.. PubMed. 42(6). 2384–91. 14 indexed citations
4.
Pennypacker, John P., Koji Kimata, & Kenneth S. Brown. (1981). Brachymorphic mice (bm/bm): A generalized biochemical defect expressed primarily in cartilage. Developmental Biology. 81(2). 280–287. 27 indexed citations
5.
Kimata, Koji, H.-J. Barrach, Kenneth S. Brown, & John P. Pennypacker. (1981). Absence of proteoglycan core protein in cartilage from the cmd/cmd (cartilage matrix deficiency) mouse.. Journal of Biological Chemistry. 256(13). 6961–6968. 93 indexed citations
6.
Brown, Kenneth S., et al.. (1981). Disproportionate micromelia (Dmm): an incomplete dominant mouse dwarfism with abnormal cartilage matrix. Development. 62(1). 165–182. 36 indexed citations
7.
Pennypacker, John P.. (1981). Modulation of chondrogenic expression in cell culture by fibronectin. Vision Research. 21(1). 65–69. 17 indexed citations
8.
Hewitt, A. Tyl, Hynda K. Kleinman, John P. Pennypacker, & George R. Martin. (1980). Identification of an adhesion factor for chondrocytes.. Proceedings of the National Academy of Sciences. 77(1). 385–388. 84 indexed citations
9.
Pennypacker, John P., John R. Hassell, Kenneth M. Yamada, & Robert M. Pratt. (1979). The influence of an adhesive cell surface protein on chondrogenic expression in vitro. Experimental Cell Research. 121(2). 411–415. 122 indexed citations
10.
Hassell, John R., John P. Pennypacker, Hynda K. Kleinman, Robert M. Pratt, & Kenneth M. Yamada. (1979). Enhanced cellular fibronectin accumulation in chondrocytes treated with vitamin A. Cell. 17(4). 821–826. 81 indexed citations
11.
Pennypacker, John P. & Paul F. Goetinck. (1979). Reversible inhibition of chondrogenic expression by certain hyaluronidase preparations. Development. 53(1). 91–102. 4 indexed citations
12.
Kleinman, Hynda K., A. Tyl Hewitt, J. Murray, et al.. (1979). Cellular and metabolic specificity in the interaction of adhesion proteins with collagen and with cells. Journal of Supramolecular Structure. 11(1). 69–78. 36 indexed citations
13.
Lewis, Cindy, Robert M. Pratt, John P. Pennypacker, & John R. Hassell. (1978). Inhibition of limb chondrogenesis in vitro by vitamin A: Alterations in cell surface characteristics. Developmental Biology. 64(1). 31–47. 134 indexed citations
14.
Hassell, John R., John P. Pennypacker, & Cindy Lewis. (1978). Chondrogenesis and cell proliferation in limb bud cell cultures treated with cytosine arabinoside and vitamin A. Experimental Cell Research. 112(2). 409–417. 73 indexed citations
15.
Pennypacker, John P., Cindy Lewis, & John R. Hassell. (1978). Altered proteoglycan metabolism in mouse limb mesenchyme cell cultures treated with vitamin A. Archives of Biochemistry and Biophysics. 186(2). 351–358. 60 indexed citations
16.
Hassell, John R., John P. Pennypacker, Kenneth M. Yamada, & Robert M. Pratt. (1978). CHANGES IN CELL SURFACE PROTEINS DURING NORMAL AND VITAMIN A‐INHIBITED CHONDROGENESIS IN VITRO. Annals of the New York Academy of Sciences. 312(1). 406–409. 34 indexed citations
17.
Kleinman, Hynda K., John P. Pennypacker, & Kenneth S. Brown. (1977). Proteoglycan and collagen of "achondroplastic" (cn/cn) neonatal mouse cartilage.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 41(3). 171–7. 10 indexed citations
18.
Pennypacker, John P. & Paul F. Goetinck. (1976). Biochemical and ultrastructural studies of collagen and proteochondroitin sulfate in normal and nanomelic cartilage. Developmental Biology. 50(1). 35–47. 63 indexed citations
19.
Goetinck, Paul F., et al.. (1974). Proteochondroitin sulfate synthesis and chondrogenic expression. Experimental Cell Research. 87(2). 241–248. 81 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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