John E. Folk

1.3k total citations
33 papers, 1.1k citations indexed

About

John E. Folk is a scholar working on Cellular and Molecular Neuroscience, Molecular Biology and Physiology. According to data from OpenAlex, John E. Folk has authored 33 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Cellular and Molecular Neuroscience, 17 papers in Molecular Biology and 8 papers in Physiology. Recurrent topics in John E. Folk's work include Neuropeptides and Animal Physiology (16 papers), Receptor Mechanisms and Signaling (9 papers) and Pain Mechanisms and Treatments (7 papers). John E. Folk is often cited by papers focused on Neuropeptides and Animal Physiology (16 papers), Receptor Mechanisms and Signaling (9 papers) and Pain Mechanisms and Treatments (7 papers). John E. Folk collaborates with scholars based in United States and China. John E. Folk's co-authors include Kenner C. Rice, James H. Woods, George G. Glenner, Emily M. Jutkiewicz, S. Stevens Negus, John R. Traynor, Glenn W. Stevenson, Stanley J. Watson, Mary M. Torregrossa and Rebecca M. Craft and has published in prestigious journals such as Nature, Biochemical Journal and Journal of Medicinal Chemistry.

In The Last Decade

John E. Folk

32 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John E. Folk United States	18	683	535	293	97	90	33	1.1k
J. Bockaert France	19	991 1.5×	958 1.8×	191 0.7×	100 1.0×	81 0.9×	33	1.5k
Ludo Kennis Belgium	7	555 0.8×	537 1.0×	169 0.6×	102 1.1×	127 1.4×	12	1.1k
P A Janssen Belgium	16	688 1.0×	694 1.3×	308 1.1×	130 1.3×	76 0.8×	28	1.4k
Joanne R. Mathiasen United States	19	443 0.6×	643 1.2×	231 0.8×	106 1.1×	155 1.7×	51	1.2k
Allen Barnett United States	19	861 1.3×	724 1.4×	165 0.6×	92 0.9×	114 1.3×	38	1.4k
Louis L. Martin United States	15	683 1.0×	435 0.8×	161 0.5×	185 1.9×	51 0.6×	28	1.0k
Jean Schwartz France	21	544 0.8×	605 1.1×	192 0.7×	51 0.5×	158 1.8×	48	1.3k
Stuart Hawtin United Kingdom	20	294 0.4×	724 1.4×	274 0.9×	96 1.0×	89 1.0×	36	1.1k
A M Snowman United States	11	935 1.4×	1.2k 2.3×	198 0.7×	62 0.6×	64 0.7×	13	1.7k
Linda H. Fossom United States	19	571 0.8×	536 1.0×	106 0.4×	101 1.0×	24 0.3×	32	1.0k

Countries citing papers authored by John E. Folk

Since Specialization

Citations

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

Fields of papers citing papers by John E. Folk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John E. Folk

This figure shows the co-authorship network connecting the top 25 collaborators of John E. Folk. A scholar is included among the top collaborators of John E. Folk 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 E. Folk. John E. Folk 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

Negus, S. Stevens, et al.. (2012). Effects of the Delta Opioid Receptor Agonist SNC80 on Pain-Related Depression of Intracranial Self-Stimulation (ICSS) in Rats. Journal of Pain. 13(4). 317–327. 26 indexed citations

Li, Feng, John E. Folk, Kejun Cheng, et al.. (2011). Probes for narcotic receptor mediated phenomena. 43. Synthesis of the ortho-a and para-a, and improved synthesis and optical resolution of the ortho-b and para-b oxide-bridged phenylmorphans: Compounds with moderate to low opioid-receptor affinity. Bioorganic & Medicinal Chemistry. 19(14). 4330–4337. 11 indexed citations

Deschamps, Jeffrey R., Richard B. Rothman, Christina M. Dersch, et al.. (2011). Probes for narcotic receptor mediated phenomena. Part 42: Synthesis and in vitro pharmacological characterization of the N-methyl and N-phenethyl analogues of the racemic ortho-c and para-c oxide-bridged phenylmorphans. Bioorganic & Medicinal Chemistry. 19(11). 3434–3443. 9 indexed citations

Banks, Matthew L., Peter G. Roma, John E. Folk, Kenner C. Rice, & S. Stevens Negus. (2011). Effects of the delta-opioid agonist SNC80 on the abuse liability of methadone in rhesus monkeys: a behavioral economic analysis. Psychopharmacology. 216(3). 431–439. 14 indexed citations

Banks, Matthew L., John E. Folk, Kenner C. Rice, & S. Stevens Negus. (2010). Selective enhancement of fentanyl-induced antinociception by the delta agonist SNC162 but not by ketamine in rhesus monkeys: Further evidence supportive of delta agonists as candidate adjuncts to mu opioid analgesics. Pharmacology Biochemistry and Behavior. 97(2). 205–212. 15 indexed citations

Jeitner, Thomas M., Wayne R. Matson, John E. Folk, John P. Blass, & Arthur J.L. Cooper. (2008). Increased levels of γ‐glutamylamines in Huntington disease CSF. Journal of Neurochemistry. 106(1). 37–44. 44 indexed citations

Folk, John E., et al.. (2008). The selective non-peptidic delta opioid agonist SNC80 does not facilitate intracranial self-stimulation in rats. European Journal of Pharmacology. 604(1-3). 58–65. 48 indexed citations

Negus, S. Stevens, et al.. (2008). Role of delta opioid efficacy as a determinant of mu/delta opioid interactions in rhesus monkeys. European Journal of Pharmacology. 602(1). 92–100. 29 indexed citations

Jutkiewicz, Emily M., Michelle Baladi, John E. Folk, Kenner C. Rice, & James H. Woods. (2007). The δ-Opioid Receptor Agonist SNC80 [(+)-4-[α(R)-α-[(2 S,5 R)-4-allyl-2,5-dimethyl-1-piperazinyl]-(3-methoxybenzyl)-N,N-diethylbenzamide] Synergistically Enhances the Locomotor-Activating Effects of Some Psychomotor Stimulants, but Not Direct Dopamine Agonists, in Rats. Journal of Pharmacology and Experimental Therapeutics. 324(2). 714–724. 12 indexed citations

10.

Mello, Nancy K., et al.. (2006). Effects of the selective delta opioid agonist SNC80 on cocaine- and food-maintained responding in rhesus monkeys. European Journal of Pharmacology. 547(1-3). 92–100. 9 indexed citations

11.

Jutkiewicz, Emily M., Michelle Baladi, John E. Folk, Kenner C. Rice, & James H. Woods. (2006). The Convulsive and Electroencephalographic Changes Produced by Nonpeptidic δ-Opioid Agonists in Rats: Comparison with Pentylenetetrazol. Journal of Pharmacology and Experimental Therapeutics. 317(3). 1337–1348. 59 indexed citations

12.

Jutkiewicz, Emily M., Mary M. Torregrossa, Katarzyna Sobczyk‐Kojiro, et al.. (2006). Behavioral and neurobiological effects of the enkephalinase inhibitor RB101 relative to its antidepressant effects. European Journal of Pharmacology. 531(1-3). 151–159. 39 indexed citations

13.

Ulibarri, Catherine, et al.. (2005). Gonadal hormone modulation of mu, kappa, and delta opioid antinociception in male and female rats. Journal of Pain. 6(4). 261–274. 95 indexed citations

14.

Jutkiewicz, Emily M., Nicholas Walker, John E. Folk, et al.. (2005). Comparison of Peptidic and Nonpeptidic δ-Opioid Agonists on Guanosine 5′-O-(3-[35S]thio)triphosphate ([35S]GTPγS) Binding in Brain Slices from Sprague-Dawley Rats. Journal of Pharmacology and Experimental Therapeutics. 312(3). 1314–1320. 15 indexed citations

15.

Stevenson, Glenn W., John E. Folk, Kenner C. Rice, & S. Stevens Negus. (2005). Interactions between δ and μ Opioid Agonists in Assays of Schedule-Controlled Responding, Thermal Nociception, Drug Self-Administration, and Drug versus Food Choice in Rhesus Monkeys: Studies with SNC80 [(+)-4-[(αR)-α-((2 S,5 R)-4-Allyl-2,5-dimethyl-1-piperazinyl)-3-methoxybenzyl]-N,N-diethylbenzamide] and Heroin. Journal of Pharmacology and Experimental Therapeutics. 314(1). 221–231. 49 indexed citations

16.

Jutkiewicz, Emily M., et al.. (2004). δ-Opioid Agonists: Differential Efficacy and Potency of SNC80, Its 3-OH (SNC86) and 3-Desoxy (SNC162) Derivatives in Sprague-Dawley Rats. Journal of Pharmacology and Experimental Therapeutics. 309(1). 173–181. 54 indexed citations

17.

Torregrossa, Mary M., Ceylan Isgor, John E. Folk, et al.. (2003). The δ-Opioid Receptor Agonist (+)BW373U86 Regulates BDNF mRNA Expression in Rats. Neuropsychopharmacology. 29(4). 649–659. 58 indexed citations

18.

Greiner, Elisabeth, John E. Folk, Arthur E. Jacobson, & Kenner C. Rice. (2003). A novel and facile preparation of bremazocine enantiomers through optically pure N-norbremazocines. Bioorganic & Medicinal Chemistry. 12(1). 233–238. 16 indexed citations

19.

Broom, Daniel C., Emily M. Jutkiewicz, John E. Folk, et al.. (2002). Convulsant activity of a non-peptidic δ-opioid receptor agonist is not required for its antidepressant-like effects in Sprague-Dawley rats. Psychopharmacology. 164(1). 42–48. 82 indexed citations

20.

Jeitner, Thomas M., Wayne R. Matson, Yevgeny Daikhin, et al.. (2001). N^ε‐(γ‐l‐Glutamyl)‐l‐lysine (GGEL) is increased in cerebrospinal fluid of patients with Huntington's disease. Journal of Neurochemistry. 79(5). 1109–1112. 72 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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