H.E. Howell

1.4k total citations · 1 hit paper
13 papers, 1.2k citations indexed

About

H.E. Howell is a scholar working on Endocrine and Autonomic Systems, Organic Chemistry and Molecular Biology. According to data from OpenAlex, H.E. Howell has authored 13 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Endocrine and Autonomic Systems, 5 papers in Organic Chemistry and 4 papers in Molecular Biology. Recurrent topics in H.E. Howell's work include Circadian rhythm and melatonin (9 papers), Free Radicals and Antioxidants (4 papers) and Organic Chemistry Cycloaddition Reactions (3 papers). H.E. Howell is often cited by papers focused on Circadian rhythm and melatonin (9 papers), Free Radicals and Antioxidants (4 papers) and Organic Chemistry Cycloaddition Reactions (3 papers). H.E. Howell collaborates with scholars based in France, United Kingdom and South Africa. H.E. Howell's co-authors include Peter J. Morgan, Perry Barrett, Rachel J. A. Helliwell, Daniel Lesieur, Wilfred Lawson, Gary Davidson, Bruno Pfeiffer, Béatrice Guardiola‐Lemaître, Pierre‐Yves Renard and Saı̈d Yous and has published in prestigious journals such as Journal of Medicinal Chemistry, European Journal of Pharmacology and Bioorganic & Medicinal Chemistry.

In The Last Decade

H.E. Howell

13 papers receiving 1.1k citations

Hit Papers

align trajectories sort by overperformance

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.

Melatonin receptors: Localization, molecular pharmacology and physiological significance

1994 524 citations Peter J. Morgan, Perry Barrett et al. Neurochemistry International profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
H.E. Howell	961	335	238	212	199	13	1.2k
Bojidar Stankov	1.3k 1.3×	433 1.3×	272 1.1×	252 1.2×	286 1.4×	52	1.7k
M. L. Dubocovich	1.1k 1.1×	693 2.1×	573 2.4×	265 1.3×	133 0.7×	15	1.7k
C.D. Mahle	692 0.7×	324 1.0×	249 1.0×	113 0.5×	78 0.4×	7	884
Jean‐Paul Nicolas	355 0.4×	929 2.8×	834 3.5×	152 0.7×	175 0.9×	30	1.8k
Marie‐Claire Rettori	242 0.3×	188 0.6×	217 0.9×	78 0.4×	217 1.1×	32	680
Vincent J. Aloyo	262 0.3×	1.2k 3.5×	794 3.3×	223 1.1×	78 0.4×	74	1.7k
Mary P. Meeley	368 0.4×	1.3k 3.7×	1.0k 4.3×	261 1.2×	110 0.6×	36	2.0k
Mauro Corsi	413 0.4×	1.2k 3.5×	864 3.6×	280 1.3×	141 0.7×	65	2.2k
Mohammad R. Marzabadi	394 0.4×	249 0.7×	380 1.6×	105 0.5×	310 1.6×	24	1.1k
Robert A. McArthur	109 0.1×	538 1.6×	344 1.4×	201 0.9×	134 0.7×	43	1.2k

Countries citing papers authored by H.E. Howell

Since Specialization

Citations

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

Fields of papers citing papers by H.E. Howell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H.E. Howell

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

13 of 13 papers shown

Howell, H.E., et al.. (2007). Two new promelacacinidin dimers, including a novel flavanone-flavanol dimer characterized by a unique C(3)-C(4) linkage, from the heartwood of Acacia nigrescens. Chemistry of Natural Compounds. 43(5). 533–538. 4 indexed citations

Howell, H.E., et al.. (2002). Identification of Two Novel Promelacacinidin Dimers from Acacia nigrescens. Journal of Natural Products. 65(5). 769–771. 7 indexed citations

Conway, Shaun, H.E. Howell, Perry Barrett, et al.. (2000). Characterisation of human melatonin mt1 and MT2 receptors by CRE-luciferase reporter assay. European Journal of Pharmacology. 390(1-2). 15–24. 56 indexed citations

Mamai, Ahmed, Caroline Bennejean, Pierre‐Yves Renard, et al.. (2000). Synthesis and Biological Activity of New Melatonin Receptor Ligands. Pharmacy and Pharmacology Communications. 6(2). 49–60. 7 indexed citations

Depreux, Patrick, Daniel Lesieur, Peter J. Morgan, et al.. (1998). Synthesis and structure–activity relationships of novel naphthalenic and bioisosteric related amidic derivatives as melatonin receptor ligands. Bioorganic & Medicinal Chemistry. 6(10). 1875–1887. 31 indexed citations

Depreux, Patrick, Daniel Lesieur, Béatrice Guardiola‐Lemaître, et al.. (1998). Tetrahydronaphthalenic derivatives as new agonist and antagonist ligands for melatonin receptors. Bioorganic & Medicinal Chemistry. 6(1). 9–13. 27 indexed citations

Depreux, Patrick, Daniel Lesieur, Peter J. Morgan, et al.. (1994). Synthesis and Structure-Activity Relationships of Novel Naphthalenic and Bioisosteric Related Amidic Derivatives as Melatonin Receptor Ligands. Journal of Medicinal Chemistry. 37(20). 3231–3239. 125 indexed citations

Morgan, Peter J., Perry Barrett, H.E. Howell, & Rachel J. A. Helliwell. (1994). Melatonin receptors: Localization, molecular pharmacology and physiological significance. Neurochemistry International. 24(2). 101–146. 524 indexed citations breakdown →

Helliwell, Rachel J. A., H.E. Howell, Wilfred Lawson, Perry Barrett, & Peter J. Morgan. (1994). Autoradiographic anomaly in125I-melatonin binding revealed in ovine adrenal. Molecular and Cellular Endocrinology. 104(1). 95–102. 5 indexed citations

10.

Yous, Saı̈d, J. Andrieux, H.E. Howell, et al.. (1992). Novel naphthalenic ligands with high affinity for the melatonin receptor. Journal of Medicinal Chemistry. 35(8). 1484–1486. 195 indexed citations

11.

Howell, H.E. & Peter J. Morgan. (1991). β‐Adrenergic stimulation increases cAMP and melatonin production in ovine pinealocyte cultures. Journal of Pineal Research. 10(3). 122–129. 10 indexed citations

12.

Morgan, Peter J., et al.. (1989). Melatonin Receptor Sites in the Syrian Hamster Brain and Pituitary. Localization and Characterization Using [¹²⁵|]lodomelatonin*. Journal of Neuroendocrinology. 1(5). 315–320. 109 indexed citations

13.

Morgan, Peter J., Wilfred Lawson, Gary Davidson, & H.E. Howell. (1989). MELATONIN INHIBITS CYCLIC AMP PRODUCTION IN CULTURED OVINE PARS TUBERALIS CELLS. Journal of Molecular Endocrinology. 3(2). R5–R8. 107 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