Joan A. Sim

1.7k total citations
21 papers, 1.5k citations indexed

About

Joan A. Sim is a scholar working on Cellular and Molecular Neuroscience, Physiology and Reproductive Medicine. According to data from OpenAlex, Joan A. Sim has authored 21 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Cellular and Molecular Neuroscience, 8 papers in Physiology and 7 papers in Reproductive Medicine. Recurrent topics in Joan A. Sim's work include Adenosine and Purinergic Signaling (8 papers), Hypothalamic control of reproductive hormones (7 papers) and Neuroscience and Neuropharmacology Research (6 papers). Joan A. Sim is often cited by papers focused on Adenosine and Purinergic Signaling (8 papers), Hypothalamic control of reproductive hormones (7 papers) and Neuroscience and Neuropharmacology Research (6 papers). Joan A. Sim collaborates with scholars based in United Kingdom, United States and China. Joan A. Sim's co-authors include Michael J. Skynner, Allan E. Herbison, R. Alan North, Annmarie Surprenant, Mark T. Young, Jean‐Rémi Pape, Lin‐Hua Jiang, Sharifah Alawieyah Syed Mortadza, Veronika E. Neubrand and Valeria Spelta and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Journal of Neuroscience.

In The Last Decade

Joan A. Sim

21 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Joan A. Sim United Kingdom 18 573 501 372 325 290 21 1.5k
Stephen J. Bunn Australia 24 39 0.1× 271 0.5× 616 1.7× 521 1.6× 306 1.1× 67 1.6k
J.A. Aguirre Spain 21 96 0.2× 83 0.2× 581 1.6× 874 2.7× 306 1.1× 74 1.4k
Nunzio Testa Italy 29 99 0.2× 61 0.1× 951 2.6× 944 2.9× 69 0.2× 40 2.3k
Nicholas A. Evans United Kingdom 11 80 0.1× 112 0.2× 358 1.0× 351 1.1× 110 0.4× 21 979
Anton Terasmaa Estonia 20 558 1.0× 20 0.0× 1.1k 2.9× 1.1k 3.5× 110 0.4× 43 2.1k
Charles M. Paden United States 17 17 0.0× 316 0.6× 299 0.8× 478 1.5× 158 0.5× 38 1.2k
Yusuke Hatanaka Japan 19 42 0.1× 66 0.1× 388 1.0× 475 1.5× 51 0.2× 25 1.6k
Carola Eva Italy 25 27 0.0× 157 0.3× 890 2.4× 1.2k 3.6× 338 1.2× 65 1.9k
Éric Boué‐Grabot France 26 904 1.6× 14 0.0× 774 2.1× 842 2.6× 378 1.3× 50 1.9k
Gloria K. Mak Canada 8 41 0.1× 37 0.1× 547 1.5× 297 0.9× 75 0.3× 10 1.6k

Countries citing papers authored by Joan A. Sim

Since Specialization
Citations

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

Fields of papers citing papers by Joan A. Sim

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joan A. Sim. 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 Joan A. Sim. The network helps show where Joan A. Sim may publish in the future.

Co-authorship network of co-authors of Joan A. Sim

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

All Works

20 of 20 papers shown
1.
Mortadza, Sharifah Alawieyah Syed, Joan A. Sim, Martin Stacey, & Lin‐Hua Jiang. (2017). Signalling mechanisms mediating Zn2+-induced TRPM2 channel activation and cell death in microglial cells. Scientific Reports. 7(1). 45032–45032. 56 indexed citations
2.
Mortadza, Sharifah Alawieyah Syed, Joan A. Sim, Veronika E. Neubrand, & Lin‐Hua Jiang. (2017). A critical role of TRPM2 channel in Aβ42‐induced microglial activation and generation of tumor necrosis factor‐α. Glia. 66(3). 562–575. 83 indexed citations
3.
Callister, Janis Bennion, Sarah Ryan, Joan A. Sim, Sara Rollinson, & Stuart Pickering‐Brown. (2016). Modelling C9orf72 dipeptide repeat proteins of a physiologically relevant size. Human Molecular Genetics. 25(23). ddw327–ddw327. 31 indexed citations
4.
Parkinson, Katie, et al.. (2013). Functional Properties of Five Dictyostelium discoideum P2X Receptors. Journal of Biological Chemistry. 288(29). 20992–21000. 14 indexed citations
5.
Browne, Liam E., João P. M. Nunes, Joan A. Sim, et al.. (2013). Optical control of trimeric P2X receptors and acid-sensing ion channels. Proceedings of the National Academy of Sciences. 111(1). 521–526. 47 indexed citations
6.
Choi, Se Joon, et al.. (2011). Role of P2X4 receptors in synaptic strengthening in mouse CA1 hippocampal neurons. European Journal of Neuroscience. 34(2). 213–220. 45 indexed citations
7.
Sim, Joan A., Helen Broomhead, & R. Alan North. (2008). Ectodomain Lysines and Suramin Block of P2X1 Receptors. Journal of Biological Chemistry. 283(44). 29841–29846. 31 indexed citations
8.
Sim, Joan A., Séverine Chaumont‐Dubel, Jihoon Jo, et al.. (2006). Altered Hippocampal Synaptic Potentiation in P2X4Knock-Out Mice. Journal of Neuroscience. 26(35). 9006–9009. 153 indexed citations
9.
Sim, Joan A., et al.. (2004). Reanalysis of P2X7Receptor Expression in Rodent Brain. Journal of Neuroscience. 24(28). 6307–6314. 230 indexed citations
10.
Kim, Miran, Valeria Spelta, Joan A. Sim, R. Alan North, & Annmarie Surprenant. (2001). Differential Assembly of Rat Purinergic P2X7 Receptor in Immune Cells of the Brain and Periphery. Journal of Biological Chemistry. 276(26). 23262–23267. 92 indexed citations
11.
Herbison, Allan E., Jean‐Rémi Pape, Sharon X. Simonian, Michael J. Skynner, & Joan A. Sim. (2001). Molecular and cellular properties of GnRH neurons revealed through transgenics in the mouse. Molecular and Cellular Endocrinology. 185(1-2). 185–194. 43 indexed citations
12.
Pape, Jean‐Rémi, Michael J. Skynner, Joan A. Sim, & Allan E. Herbison. (2001). Profiling γ-Aminobutyric Acid (GABA<sub>A</sub>) Receptor Subunit mRNA Expression in Postnatal Gonadotropin-Releasing Hormone (GnRH) Neurons of the Male Mouse with Single Cell RT-PCR. Neuroendocrinology. 74(5). 300–308. 48 indexed citations
13.
Sim, Joan A., Michael J. Skynner, & Allan E. Herbison. (2001). Direct Regulation of Postnatal GnRH Neurons by the Progesterone Derivative Allopregnanolone in the Mouse. Endocrinology. 142(10). 4448–4453. 38 indexed citations
14.
Sim, Joan A., Michael J. Skynner, & Allan E. Herbison. (2001). Heterogeneity in the Basic Membrane Properties of Postnatal Gonadotropin-Releasing Hormone Neurons in the Mouse. Journal of Neuroscience. 21(3). 1067–1075. 85 indexed citations
15.
Sim, Joan A., Michael J. Skynner, Jean‐Rémi Pape, & Allan E. Herbison. (2000). Late postnatal reorganization of GABAA receptor signalling in native GnRH neurons. European Journal of Neuroscience. 12(10). 3497–3504. 118 indexed citations
16.
Skynner, Michael J., et al.. (1999). Promoter Transgenics Reveal Multiple Gonadotropin-Releasing Hormone-I-Expressing Cell Populations of Different Embryological Origin in Mouse Brain. Journal of Neuroscience. 19(14). 5955–5966. 107 indexed citations
17.
Skynner, Michael J., Joan A. Sim, & Allan E. Herbison. (1999). Detection of Estrogen Receptor α and β Messenger Ribonucleic Acids in Adult Gonadotropin-Releasing Hormone Neurons1. Endocrinology. 140(11). 5195–5201. 179 indexed citations
18.
Griffith, William H., Joan A. Sim, & Robert T. Matthews. (1991). Electrophysiologic Characteristics of Basal Forebrain Neurons in vitro. Advances in experimental medicine and biology. 295. 143–155. 24 indexed citations
19.
Sim, Joan A. & William H. Griffith. (1991). Muscarinic agonists block a late-afterhyperpolarization in medial septum/diagonal band neurons in vitro. Neuroscience Letters. 129(1). 63–68. 11 indexed citations
20.
Sim, Joan A. & Graeme Henderson. (1981). The effect of extracellular sodium ion concentration on the action of opiates to inhibit potassium-evoked released of [3H]noradrenaline from the mouse vas deferens. European Journal of Pharmacology. 70(4). 437–443. 3 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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