Mac E. Hadley

8.6k total citations · 1 hit paper
178 papers, 6.9k citations indexed

About

Mac E. Hadley is a scholar working on Molecular Biology, Cell Biology and Nutrition and Dietetics. According to data from OpenAlex, Mac E. Hadley has authored 178 papers receiving a total of 6.9k indexed citations (citations by other indexed papers that have themselves been cited), including 86 papers in Molecular Biology, 68 papers in Cell Biology and 63 papers in Nutrition and Dietetics. Recurrent topics in Mac E. Hadley's work include melanin and skin pigmentation (64 papers), Biochemical Analysis and Sensing Techniques (63 papers) and Receptor Mechanisms and Signaling (47 papers). Mac E. Hadley is often cited by papers focused on melanin and skin pigmentation (64 papers), Biochemical Analysis and Sensing Techniques (63 papers) and Receptor Mechanisms and Signaling (47 papers). Mac E. Hadley collaborates with scholars based in United States, Brazil and Czechia. Mac E. Hadley's co-authors include Victor J. Hruby, Joseph T. Bagnara, Ana Maria de Lauro Castrucci, Tomi K. Sawyer, Fahad Al‐Obeidi, Christopher B. Heward, Brian C. Wilkes, Robert T. Dorr, Carrie Haskell‐Luevano and John D. Taylor and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Mac E. Hadley

174 papers receiving 6.7k 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.

4-Norleucine, 7-D-phenylalanine-alpha-melanocyte-stimulating hormone: a highly potent alpha-melanotropin with ultralong biological activity.

1980 484 citations Tomi K. Sawyer, Victor J. Hruby et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Mac E. Hadley United States	41	2.8k	2.7k	2.6k	2.4k	1.5k	178	6.9k
Ana Maria de Lauro Castrucci Brazil	36	1.4k 0.5×	2.3k 0.8×	3.8k 1.5×	1.2k 0.5×	2.3k 1.5×	171	6.2k
Aaron B. Lerner United States	44	1.2k 0.4×	1.9k 0.7×	2.1k 0.8×	3.1k 1.3×	881 0.6×	127	7.7k
Craig Montell United States	78	3.2k 1.1×	8.6k 3.2×	2.0k 0.8×	1.6k 0.7×	10.4k 6.8×	179	20.4k
Hanns Hatt Germany	57	3.2k 1.1×	3.3k 1.2×	374 0.1×	422 0.2×	5.4k 3.5×	247	11.0k
Helgi B. Schiöth Sweden	55	1.9k 0.7×	5.9k 2.2×	2.0k 0.8×	1.0k 0.4×	3.4k 2.2×	139	10.3k
Hiroshi Kawauchi Japan	57	1.5k 0.5×	1.6k 0.6×	2.5k 1.0×	719 0.3×	1.3k 0.8×	238	10.4k
Richard E. Mains United States	66	1.7k 0.6×	8.5k 3.1×	1.6k 0.6×	3.3k 1.4×	7.2k 4.7×	275	16.3k
V. Erspamer Italy	54	396 0.1×	5.0k 1.8×	577 0.2×	190 0.1×	5.6k 3.7×	189	10.0k
Hubert Vaudry France	54	476 0.2×	3.9k 1.4×	1.5k 0.6×	333 0.1×	3.8k 2.5×	283	10.7k
Kazushige Touhara Japan	51	2.5k 0.9×	3.0k 1.1×	337 0.1×	513 0.2×	5.8k 3.8×	136	10.6k

Countries citing papers authored by Mac E. Hadley

Since Specialization

Citations

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

Fields of papers citing papers by Mac E. Hadley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Mac E. Hadley

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

Hadley, Mac E. & Robert T. Dorr. (2006). Melanocortin peptide therapeutics: Historical milestones, clinical studies and commercialization. Peptides. 27(4). 921–930. 74 indexed citations

Hadley, Mac E. & Carrie Haskell‐Luevano. (1999). The Proopiomelanocortin System. Annals of the New York Academy of Sciences. 885(1). 1–21. 137 indexed citations

Ugwu, Sydney O., James Blanchard, Norman Levine, et al.. (1997). Skin Pigmentation and Pharmacokinetics of Melanotan-I in Humans. Biopharmaceutics & Drug Disposition. 18(3). 259–269. 34 indexed citations

Jiang, Jinwen, et al.. (1996). Human Epidermal Melanocyte and Keratinocyte Melanocortin Receptors: Visualization by Melanotropic Peptide Conjugated Microspheres (Latex Beads). Pigment Cell Research. 9(5). 240–247. 14 indexed citations

Castrucci, Ana Maria de Lauro, Wade C. Sherbrooke, Tomi K. Sawyer, et al.. (1994). Discovery of an α-melanotropin antagonist effective in vivo. Peptides. 15(4). 627–632. 7 indexed citations

Johnson, Paula D., Brenda V. Dawson, Robert T. Dorr, et al.. (1994). Coat color darkening in a dog in response to a potent melanotropic peptide. American Journal of Veterinary Research. 55(11). 1593–1596. 5 indexed citations

Ito, Amando Siuiti, et al.. (1993). Structure-activity correlations of melanotropin peptides in model lipids by tryptophan fluorescence studies. Biochemistry. 32(45). 12264–12272. 41 indexed citations

Hadley, Mac E., Shubh D. Sharma, Victor J. Hruby, Norman Levine, & Robert T. Dorr. (1993). Melanotropic Peptides for Therapeutic and Cosmetic Tanning of the Skin. Annals of the New York Academy of Sciences. 680(1). 424–439. 33 indexed citations

Hruby, Victor J., et al.. (1993). Design, Synthesis, and Conformation of Superpotent and Prolonged Acting Melanotropins^a. Annals of the New York Academy of Sciences. 680(1). 51–63. 65 indexed citations

10.

Al‐Obeidi, Fahad, et al.. (1992). Synthesis and biological activities of fatty acid conjugates of a cyclic lactam .alpha.-melanotropin. Journal of Medicinal Chemistry. 35(1). 118–123. 21 indexed citations

11.

Gehlsen, Kurt R., et al.. (1992). Effects of a Melanotropic Peptide on Melanoma Cell Growth, Metastasis, and Invasion. Pigment Cell Research. 5(5). 219–223. 4 indexed citations

12.

Hadley, Mac E., et al.. (1991). Biological Activities of Melanotropic Peptide Fatty Acid Conjugates. Pigment Cell Research. 4(4). 180–185. 11 indexed citations

13.

Sawyer, Tomi K., Douglas J. Staples, Ana Maria de Lauro Castrucci, et al.. (1990). α-Melanocyte stimulating hormone message and inhibitory sequences: Comparative structure-activity studies on melanocytes. Peptides. 11(2). 351–357. 34 indexed citations

14.

Dorr, Robert T., Brenda V. Dawson, Fahad Al‐Obeidi, et al.. (1988). Toxicologic studies of a superpotent α-melanotropin, [Nle4, D-Phe7]α-MSH. Investigational New Drugs. 6(4). 251–258. 21 indexed citations

15.

Lebl, Michal, Victor J. Hruby, Ana Maria de Lauro Castrucci, Maria Aparecida Visconti, & Mac E. Hadley. (1988). Melanin concentrating hormone analogs: contraction of the cyclic structure. 1. Agonist activity. Journal of Medicinal Chemistry. 31(5). 949–954. 22 indexed citations

16.

Sawyer, Tomi K., Mac E. Hadley, Victor J. Hruby, et al.. (1988). α‐Melanocyte‐stimulating hormone structure‐activity studies: Comparative analysis of melanotropic and CNS bioactivities. Synapse. 2(3). 288–292. 4 indexed citations

17.

Dawson, Brenda V., et al.. (1988). Transdermal delivery of a melanotropic peptide hormone analogue. Life Sciences. 43(14). 1111–1117. 16 indexed citations

18.

Hadley, Mac E., et al.. (1981). Biological Actions of Melanocyte‐Stimulating Hormone. Novartis Foundation symposium. 81. 244–262. 8 indexed citations

19.

Bagnara, Joseph T. & Mac E. Hadley. (1973). Chromatophores and color change : the comparative physiology of animal pigmentation. Prentice Hall eBooks. 280 indexed citations

20.

Goldman, Joel M. & Mac E. Hadley. (1969). IN VITRO DEMONSTRATION OF ADRENERGIC RECEPTORS CONTROLLING MELANOPHORE RESPONSES OF THE LIZARD, ANOLIS CAROLINENSIS. Journal of Pharmacology and Experimental Therapeutics. 166(1). 1–7. 51 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