Christopher Longcope

19.1k total citations · 2 hit papers
227 papers, 15.1k citations indexed

About

Christopher Longcope is a scholar working on Endocrinology, Diabetes and Metabolism, Genetics and Reproductive Medicine. According to data from OpenAlex, Christopher Longcope has authored 227 papers receiving a total of 15.1k indexed citations (citations by other indexed papers that have themselves been cited), including 123 papers in Endocrinology, Diabetes and Metabolism, 97 papers in Genetics and 46 papers in Reproductive Medicine. Recurrent topics in Christopher Longcope's work include Hormonal and reproductive studies (97 papers), Estrogen and related hormone effects (92 papers) and Ovarian function and disorders (26 papers). Christopher Longcope is often cited by papers focused on Hormonal and reproductive studies (97 papers), Estrogen and related hormone effects (92 papers) and Ovarian function and disorders (26 papers). Christopher Longcope collaborates with scholars based in United States, Netherlands and China. Christopher Longcope's co-authors include John B. McKinlay, Henry A. Feldman, Anna Gray, Andre B. Araujo, Catherine B. Johannes, Siu L. Hui, C. Conrad Johnston, Charles W. Slemenda, C. Conrad Johnston and Charlene Franz and has published in prestigious journals such as New England Journal of Medicine, Journal of Biological Chemistry and Journal of Clinical Investigation.

In The Last Decade

Christopher Longcope

225 papers receiving 14.3k 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.

Age Trends in the Level of Serum Testosterone and Other Hormones in Middle-Aged Men: Longitudinal Results from the Massachusetts Male Aging Study

2002 1.4k citations Henry A. Feldman, Christopher Longcope et al. The Journal of Clinical Endocrinology & Metabolism profile →
Age, Disease, and Changing Sex Hormone Levels in Middle-Aged Men: Results of the Massachusetts Male Aging Study*

1991 864 citations Henry A. Feldman, John B. McKinlay et al. The Journal of Clinical Endocrinology & Metabolism profile →

Author Peers

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

Author						Papers	Cites
Christopher Longcope	7.7k	4.0k	3.1k	3.0k	2.1k	227	15.1k
Jean‐Marc Kaufman	10.3k 1.3×	1.9k 0.5×	4.8k 1.6×	4.1k 1.3×	2.2k 1.0×	312	20.2k
Laurence M. Demers	2.8k 0.4×	2.1k 0.5×	3.1k 1.0×	1.8k 0.6×	2.4k 1.1×	347	13.3k
Alain Bélanger	5.3k 0.7×	3.5k 0.9×	3.9k 1.3×	1.4k 0.5×	1.7k 0.8×	214	13.3k
Howard L. Judd	5.1k 0.7×	3.7k 0.9×	1.7k 0.5×	5.0k 1.6×	1.4k 0.7×	184	12.8k
Pentti K. Siiteri	3.7k 0.5×	4.8k 1.2×	2.9k 0.9×	1.9k 0.6×	2.0k 1.0×	131	13.4k
Rogerio A. Løbo	8.0k 1.0×	4.4k 1.1×	2.6k 0.8×	9.9k 3.3×	1.0k 0.5×	371	19.7k
William J. Bremner	8.0k 1.0×	1.6k 0.4×	3.6k 1.1×	5.7k 1.9×	396 0.2×	212	14.8k
S. Mitchell Harman	6.8k 0.9×	1.9k 0.5×	2.1k 0.7×	1.6k 0.5×	418 0.2×	154	11.2k
Frank Z. Stanczyk	8.1k 1.0×	6.5k 1.6×	4.2k 1.4×	4.7k 1.6×	4.1k 2.0×	602	25.2k
Paul C. MacDonald	3.3k 0.4×	3.5k 0.9×	2.8k 0.9×	1.6k 0.5×	908 0.4×	297	14.9k

Countries citing papers authored by Christopher Longcope

Since Specialization

Citations

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

Fields of papers citing papers by Christopher Longcope

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christopher Longcope. 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 Christopher Longcope. The network helps show where Christopher Longcope may publish in the future.

Co-authorship network of co-authors of Christopher Longcope

This figure shows the co-authorship network connecting the top 25 collaborators of Christopher Longcope. A scholar is included among the top collaborators of Christopher Longcope 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 Christopher Longcope. Christopher Longcope 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

Fleischer, Jessica, Donald J. McMahon, Wylie C. Hembree, et al.. (2008). Serum Testosterone Levels After Cardiac Transplantation. Transplantation. 85(6). 834–839. 18 indexed citations

Spratt, Daniel, et al.. (2006). Increases in serum estrogen levels during major illness are caused by increased peripheral aromatization. American Journal of Physiology-Endocrinology and Metabolism. 291(3). E631–E638. 69 indexed citations

Gapstur, Susan M., Peter H. Gann, Peter Kopp, et al.. (2002). Serum Androgen Concentrations in Young Men: A Longitudinal Analysis of Associations with Age, Obesity, and Race.. Cancer Epidemiology and Prevention Biomarkers. 11(10). 1041–1047. 82 indexed citations

Barnett, Junaidah B., Margo N. Woods, Bernard Rosner, et al.. (2001). Sex Hormone Levels in Premenopausal African-American Women With Upper and Lower Body Fat Phenotypes. Nutrition and Cancer. 41(1-2). 47–56. 18 indexed citations

Longcope, Christopher. (2001). Endocrine function of the postmenopausal ovary. Journal of the Society for Gynecologic Investigation. 8(1). S67–S68. 27 indexed citations

Longcope, Christopher, Henry A. Feldman, J. B. McKinlay, & Andre B. Araujo. (2000). Diet and Sex Hormone-Binding Globulin. The Journal of Clinical Endocrinology & Metabolism. 85(1). 293–296. 94 indexed citations

Hankinson, Susan E., Walter C. Willett, Dominique S. Michaud, et al.. (1999). Plasma Prolactin Levels and Subsequent Risk of Breast Cancer in Postmenopausal Women. JNCI Journal of the National Cancer Institute. 91(7). 629–634. 241 indexed citations

Dorgan, Joanne F., Frank Z. Stanczyk, Christopher Longcope, et al.. (1997). Relationship of serum dehydroepiandrosterone (DHEA), DHEA sulfate, and 5-androstene-3 beta, 17 beta-diol to risk of breast cancer in postmenopausal women.. PubMed. 6(3). 177–81. 83 indexed citations

Dorgan, Joanne F., Christopher Longcope, Hugh E. Stephenson, et al.. (1997). Serum sex hormone levels are related to breast cancer risk in postmenopausal women.. Environmental Health Perspectives. 105(suppl 3). 583–585. 56 indexed citations

10.

Okulicz, William C., et al.. (1996). Analysis of differential gene regulation in adequate versus inadequate secretory-phase endometrial complementary deoxyribonucleic acid populations from the rhesus monkey.. Endocrinology. 137(11). 4844–4850. 21 indexed citations

11.

Judd, JT, Christopher Longcope, C. C. Brown, et al.. (1996). Effects of dietary fat and fiber on plasma and urine androgens and estrogens in men: a controlled feeding study. American Journal of Clinical Nutrition. 64(6). 850–855. 138 indexed citations

12.

Brambilla, Donald, Sonja M. McKinlay, John B. McKinlay, et al.. (1996). Does collecting repeated blood samples from each subject improve the precision of estimated steroid hormone levels?. Journal of Clinical Epidemiology. 49(3). 345–350. 35 indexed citations

13.

Dorgan, Joanne F., Marsha E. Reichman, Joseph T. Judd, et al.. (1995). The relation of body size to plasma levels of estrogens and androgens in premenopausal women (Maryland, United States). Cancer Causes & Control. 6(1). 3–8. 43 indexed citations

14.

London, Stephanie J., Walter C. Willett, Christopher Longcope, & Sonja M. McKinlay. (1991). Alcohol and other dietary factors in relation to serum hormone concentrations in women at climacteric. American Journal of Clinical Nutrition. 53(1). 166–171. 104 indexed citations

15.

Okulicz, William C., et al.. (1990). Biochemical and immunohistochemical analyses of estrogen and progesterone receptors in the rhesus monkey uterus during the proliferative and secretory phases of artificial menstrual cycles. Fertility and Sterility. 53(5). 913–920. 37 indexed citations

16.

Longcope, Christopher, et al.. (1989). Estrogen Interconversions in the Induced Cycle in Female Rhesus Monkeys1. Biology of Reproduction. 40(5). 949–952. 4 indexed citations

17.

Longcope, Christopher. (1987). Peripheral aromatization: Studies on controlling factors. Steroids. 50(1-3). 253–267. 24 indexed citations

18.

Longcope, Christopher. (1982). Methods and results of aromatization studies in vivo.. PubMed. 42(8 Suppl). 3307s–3311s. 64 indexed citations

19.

Longcope, Christopher, et al.. (1981). Production rates of androgens and oestrogens in post-menopausal women. Maturitas. 3(3-4). 215–223. 37 indexed citations

20.

Longcope, Christopher, et al.. (1974). In vivo studies on the metabolism of estrone and estradiol-17β by the brain. Steroids. 23(4). 469–481. 7 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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