P.T. Johnson

2.1k total citations · 1 hit paper
19 papers, 1.8k citations indexed

About

P.T. Johnson is a scholar working on Molecular Biology, Ophthalmology and Cellular and Molecular Neuroscience. According to data from OpenAlex, P.T. Johnson has authored 19 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Molecular Biology, 10 papers in Ophthalmology and 9 papers in Cellular and Molecular Neuroscience. Recurrent topics in P.T. Johnson's work include Retinal Development and Disorders (13 papers), Retinal Diseases and Treatments (9 papers) and Glaucoma and retinal disorders (6 papers). P.T. Johnson is often cited by papers focused on Retinal Development and Disorders (13 papers), Retinal Diseases and Treatments (9 papers) and Glaucoma and retinal disorders (6 papers). P.T. Johnson collaborates with scholars based in United States, Finland and United Kingdom. P.T. Johnson's co-authors include Lincoln V. Johnson, Don H. Anderson, Gregory S. Hageman, Monte J. Radeke, Benjamin E. Reese, Geoffrey P. Lewis, Steven K. Fisher, Meghan Brown, Goldis Malek and Ethan A. Chapin and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Immunology and The Journal of Comparative Neurology.

In The Last Decade

P.T. Johnson

19 papers receiving 1.7k 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 pivotal role of the complement system in aging and age-related macular degeneration: Hypothesis re-visited

2009 591 citations Don H. Anderson, Monte J. Radeke et al. Progress in Retinal and Eye Research profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P.T. Johnson United States	15	1.3k	722	714	347	188	19	1.8k
Rinki Ratnapriya United States	24	748 0.6×	443 0.6×	890 1.2×	117 0.3×	171 0.9×	46	1.5k
Hidehiko Matsuda Japan	25	669 0.5×	295 0.4×	527 0.7×	324 0.9×	286 1.5×	69	1.7k
Norimoto Gotoh Japan	31	1.9k 1.4×	1.1k 1.6×	1.1k 1.6×	100 0.3×	232 1.2×	58	2.6k
S. Scott Whitmore United States	18	821 0.6×	421 0.6×	953 1.3×	122 0.4×	94 0.5×	32	1.4k
Colin J. Chu United Kingdom	19	760 0.6×	331 0.5×	627 0.9×	146 0.4×	188 1.0×	40	1.4k
Francis A. Billson Australia	17	934 0.7×	501 0.7×	379 0.5×	73 0.2×	86 0.5×	31	1.3k
Charanjit Sethi United Kingdom	17	974 0.8×	802 1.1×	585 0.8×	75 0.2×	136 0.7×	20	1.4k
T. Michael Nork United States	23	1.2k 1.0×	552 0.8×	1.0k 1.4×	56 0.2×	187 1.0×	89	1.8k
Chooi‐May Lai Australia	21	947 0.7×	445 0.6×	1.2k 1.7×	50 0.1×	149 0.8×	38	1.6k
Camiel J.F. Boon Netherlands	29	2.0k 1.6×	820 1.1×	1.8k 2.5×	134 0.4×	181 1.0×	85	2.7k

Countries citing papers authored by P.T. Johnson

Since Specialization

Citations

This map shows the geographic impact of P.T. Johnson'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 P.T. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P.T. Johnson more than expected).

Fields of papers citing papers by P.T. Johnson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P.T. Johnson

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

All Works

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19 of 19 papers shown

Anderson, Don H., Monte J. Radeke, Ethan A. Chapin, et al.. (2009). The pivotal role of the complement system in aging and age-related macular degeneration: Hypothesis re-visited. Progress in Retinal and Eye Research. 29(2). 95–112. 591 indexed citations breakdown →

Laine, Matti, Hanna Jarva, Sanna Seitsonen, et al.. (2007). Y402H Polymorphism of Complement Factor H Affects Binding Affinity to C-Reactive Protein. The Journal of Immunology. 178(6). 3831–3836. 210 indexed citations

Johnson, P.T., et al.. (2007). Individuals homozygous for the age-related macular degeneration risk-conferring variant of complement factor H have elevated levels of CRP in the choroid. American Journal of Ophthalmology. 143(3). 544–545. 6 indexed citations

Shahar, Jonathan, Robert L. Avery, Gad Heilweil, et al.. (2006). ELECTROPHYSIOLOGIC AND RETINAL PENETRATION STUDIES FOLLOWING INTRAVITREAL INJECTION OF BEVACIZUMAB (AVASTIN). Retina. 26(3). 262–269. 290 indexed citations

Johnson, P.T., K.E. Betts, Monte J. Radeke, et al.. (2006). Individuals homozygous for the age-related macular degeneration risk-conferring variant of complement factor H have elevated levels of CRP in the choroid. Proceedings of the National Academy of Sciences. 103(46). 17456–17461. 171 indexed citations

Lewis, G P, K.E. Betts, P.T. Johnson, et al.. (2005). Synaptic Ribbon and Vesicle Recycling Proteins Following Retinal Detachment and Reattachment in Feline and Human Retinas. Investigative Ophthalmology & Visual Science. 46(13). 2444–2444. 2 indexed citations

Johnson, P.T., et al.. (2005). Synaptic Pathology, Altered Gene Expression, and Degeneration in Photoreceptors Impacted by Drusen. Investigative Ophthalmology & Visual Science. 46(12). 4788–4788. 95 indexed citations

Geller, Scott, et al.. (2004). Vision Loss in Usher Syndrome Type III is Caused by Mutations in Clarin–1, an Inner Retinal Protein.. Investigative Ophthalmology & Visual Science. 45(13). 5123–5123. 1 indexed citations

Johnson, P.T., Geoffrey P. Lewis, Meghan Brown, et al.. (2003). Drusen-Associated Degeneration in the Retina. Investigative Ophthalmology & Visual Science. 44(10). 4481–4481. 164 indexed citations

10.

Johnson, P.T., Mary A. Raven, & Benjamin E. Reese. (2001). Disruption of transient photoreceptor targeting within the inner plexiform layer following early ablation of cholinergic amacrine cells in the ferret. Visual Neuroscience. 18(5). 741–751. 17 indexed citations

11.

Johnson, P.T., et al.. (2001). Developmental patterns of protein expression in photoreceptors implicate distinct environmental versus cell-intrinsic mechanisms. Visual Neuroscience. 18(1). 157–168. 25 indexed citations

12.

Reese, Benjamin E., et al.. (2001). Development of cholinergic amacrine cell stratification in the ferret retina and the effects of early excitotoxic ablation. Visual Neuroscience. 18(4). 559–570. 24 indexed citations

13.

Johnson, P.T., et al.. (1999). Rods and cones project to the inner plexiform layer during development. The Journal of Comparative Neurology. 414(1). 1–12. 43 indexed citations

14.

Rice, Dennis S., Dan Goldowitz, Robert W. Williams, et al.. (1999). Extrinsic Modulation of Retinal Ganglion Cell Projections: Analysis of the Albino Mutation in Pigmentation Mosaic Mice. Developmental Biology. 216(1). 41–56. 7 indexed citations

15.

Wikler, Kenneth C., et al.. (1998). Localization of protein kinase C to UV-sensitive photoreceptors in the mouse retina. Visual Neuroscience. 15(1). 87–95. 15 indexed citations

16.

Johnson, P.T., Scott Geller, & Benjamin E. Reese. (1998). Distribution, size and number of axons in the optic pathway of ground squirrels. Experimental Brain Research. 118(1). 93–104. 17 indexed citations

17.

Johnson, P.T., Scott Geller, G P Lewis, & Benjamin E. Reese. (1997). Cellular Retinaldehyde Binding Protein in Developing Retinal Astrocytes. Experimental Eye Research. 64(5). 759–766. 22 indexed citations

18.

Reese, Benjamin E., et al.. (1997). Chronotopic fiber reordering and the distribution of cell adhesion and extracellular matrix molecules in the optic pathway of fetal ferrets. The Journal of Comparative Neurology. 380(3). 355–372. 25 indexed citations

19.

Reese, Benjamin E., P.T. Johnson, & Gary E. Baker. (1996). Maturational gradients in the retina of the ferret. The Journal of Comparative Neurology. 375(2). 252–273. 35 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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