R. D. Penn

4.0k total citations · 1 hit paper
36 papers, 3.0k citations indexed

About

R. D. Penn is a scholar working on Neurology, Cellular and Molecular Neuroscience and Neurology. According to data from OpenAlex, R. D. Penn has authored 36 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Neurology, 12 papers in Cellular and Molecular Neuroscience and 6 papers in Neurology. Recurrent topics in R. D. Penn's work include Botulinum Toxin and Related Neurological Disorders (8 papers), Neurological disorders and treatments (8 papers) and Parkinson's Disease Mechanisms and Treatments (5 papers). R. D. Penn is often cited by papers focused on Botulinum Toxin and Related Neurological Disorders (8 papers), Neurological disorders and treatments (8 papers) and Parkinson's Disease Mechanisms and Treatments (5 papers). R. D. Penn collaborates with scholars based in United States, France and Sweden. R. D. Penn's co-authors include W. A. Hagins, S. Yoshikami, Mark Stacy, Kim J. Burchiel, Cynthia Comella, Richard K. Simpson, Anthony E. Lang, Joseph Jankovic, Edward R. Laws and G. F. Wooten and has published in prestigious journals such as Nature, The Lancet and JAMA.

In The Last Decade

R. D. Penn

35 papers receiving 2.8k 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.

Randomized, double-blind trial of glial cell line-derived neurotrophic factor (GDNF) in PD

2003 622 citations R. D. Penn et al. Neurology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. D. Penn United States	22	1.7k	1.2k	1.1k	405	319	36	3.0k
L.J. Poirier Canada	33	1.6k 0.9×	1.0k 0.9×	531 0.5×	392 1.0×	140 0.4×	83	2.9k
Akiva S. Cohen United States	32	1.6k 0.9×	724 0.6×	1.2k 1.1×	699 1.7×	202 0.6×	76	3.4k
Jorge Cervós‐Navarro Germany	34	834 0.5×	663 0.6×	1.0k 0.9×	205 0.5×	220 0.7×	113	3.4k
P. Grafe Germany	38	2.6k 1.5×	616 0.5×	2.3k 2.0×	359 0.9×	145 0.5×	99	4.2k
Ryder P. Gwinn United States	24	817 0.5×	979 0.8×	609 0.5×	216 0.5×	233 0.7×	41	2.3k
Roger Janz United States	31	2.7k 1.6×	855 0.7×	2.1k 1.9×	450 1.1×	220 0.7×	41	4.4k
James W. Lighthall United States	13	1.7k 1.0×	1.5k 1.3×	864 0.8×	1.4k 3.6×	112 0.4×	14	3.7k
Haring J. W. Nauta United States	27	1.5k 0.9×	1.3k 1.1×	480 0.4×	574 1.4×	64 0.2×	79	3.4k
Eugene V. Golanov United States	28	774 0.5×	646 0.6×	530 0.5×	361 0.9×	173 0.5×	77	2.5k
Mark S. LeDoux United States	32	1.4k 0.8×	1.7k 1.5×	791 0.7×	244 0.6×	270 0.8×	128	3.2k

Countries citing papers authored by R. D. Penn

Since Specialization

Citations

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

Fields of papers citing papers by R. D. Penn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. D. Penn

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Schram, Alison M., Abdul Rafeh Naqash, Eric B. Haura, et al.. (2025). The Bi-steric, mTORC1-Selective Inhibitor, RMC-5552, in Advanced Solid Tumors: A Phase 1 Trial. Clinical Cancer Research. 31(23). 4933–4943.

Linninger, Andreas A., et al.. (2008). Rigorous Mathematical Modeling Techniques for Optimal Delivery of Macromolecules to the Brain. IEEE Transactions on Biomedical Engineering. 55(9). 2303–2313. 30 indexed citations

Linninger, Andreas A., et al.. (2008). O.096 A novel impedance sensor to monitor and control ventricular size. Clinical Neurology and Neurosurgery. 110. S25–S26. 1 indexed citations

Linninger, Andreas A., et al.. (2005). Pulsatile Cerebrospinal Fluid Dynamics in the Human Brain. IEEE Transactions on Biomedical Engineering. 52(4). 557–565. 119 indexed citations

Pfann, Kerstin D., R. D. Penn, Kathleen M. Shannon, Mark B. Shapiro, & Daniel M. Corcos. (1996). Effect of stimulation in the ventral intermediate nucleus of the thalamus on limb control in parkinson7apos;s disease: A case study. Movement Disorders. 11(3). 311–316. 8 indexed citations

Hubble, Jean, Karen Busenbark, Steven B. Wilkinson, et al.. (1996). Deep brain stimulation for essential tremor. Neurology. 46(4). 1150–1153. 132 indexed citations

Mufson, Elliott J., Jeffrey S. Kroin, Teresa Sobreviela, et al.. (1996). Intrastriatal and intraventricular infusion of brain-derived neurotrophic factor in the cynomologous monkey: Distribution, retrograde transport and co-localization with substantia nigra dopamine-containing neurons. Neuroscience. 71(1). 179–191. 39 indexed citations

Jones, Simon R. M., et al.. (1996). Alpha-foetoprotein heterogeneity: What is its value in managing patients with germ cell tumours?. Clinical Oncology. 8(5). 323–326. 5 indexed citations

Kroin, Jeffrey S., et al.. (1993). Intrathecal baclofen down-regulates GABAB receptors in the rat substantia gelatinosa. Journal of neurosurgery. 79(4). 544–549. 68 indexed citations

10.

Goetz, Christopher G., Glenn T. Stebbins, H. L. Klawans, et al.. (1991). United Parkinson Foundation Neurotransplantation Registry on adrenal medullary transplants. Neurology. 41(11). 1719–1719. 107 indexed citations

11.

Fordham, Ernest W., et al.. (1990). lndium-111 DTP A Flow Study to Evaluate Surgically Implanted Drug Pump Delivery System. Clinical Nuclear Medicine. 15(3). 154–156. 21 indexed citations

12.

Carvey, Paul M., Amanda McRae, Louis R. Ptak, et al.. (1990). Chapter 78 Disappearance of a putative DA-neuron antibody following adrenal medulla transplantation: relationship to a striatal-derived DA neuron trophic factor. Progress in brain research. 82. 693–697. 6 indexed citations

13.

Penn, R. D., Suzanne M. Savoy, Daniel M. Corcos, et al.. (1990). Intrathecal Baclofen for Severe Spinal Spasticity. Survey of Anesthesiology. 34(1). 30–30. 21 indexed citations

14.

Fox, J. H., Derrick Bennett, Christopher G. Goetz, et al.. (1989). Induction of parkinsonism by intraventricular bethanechol in a patient with Alzheimer's disease. Neurology. 39(9). 1265–1265. 7 indexed citations

15.

McRae‐Degueurce, A., Harold L. Klawans, R. D. Penn, et al.. (1988). An antibody in the CSF of Parkinson's disease patients disappears following adrenal medulla transplantation. Neuroscience Letters. 94(1-2). 192–197. 13 indexed citations

16.

Bouvier, Guy, et al.. (1987). Stereotactic Administration of Intratumoral Chronic Chemotherapy of Recurrent Malignant Gliomas. Stereotactic and Functional Neurosurgery. 50(1-6). 223–226. 13 indexed citations

17.

Penn, R. D., et al.. (1983). Chronic Intratumoral Chemotherapy of a Rat Tumor with Cisplatin and Fluorouracil. Stereotactic and Functional Neurosurgery. 46(1-4). 240–244. 33 indexed citations

18.

Penn, R. D., et al.. (1977). Cerebral Edema, Mass Effects, and Regional Blood Volume in Man. Journal of Computer Assisted Tomography. 1(2). 263–263. 1 indexed citations

19.

Penn, R. D.. (1975). Cerebral blood volume in man. Computer analysis of a computerized brain scan. JAMA. 234(11). 1154–1155. 4 indexed citations

20.

Hagins, W. A., R. D. Penn, & S. Yoshikami. (1970). Dark Current and Photocurrent in Retinal Rods. Biophysical Journal. 10(5). 380–412. 414 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.

Explore authors with similar magnitude of impact