Carl L. Keen

33.7k total citations · 3 hit papers
540 papers, 25.7k citations indexed

About

Carl L. Keen is a scholar working on Nutrition and Dietetics, Health, Toxicology and Mutagenesis and Biochemistry. According to data from OpenAlex, Carl L. Keen has authored 540 papers receiving a total of 25.7k indexed citations (citations by other indexed papers that have themselves been cited), including 267 papers in Nutrition and Dietetics, 100 papers in Health, Toxicology and Mutagenesis and 80 papers in Biochemistry. Recurrent topics in Carl L. Keen's work include Trace Elements in Health (198 papers), Heavy Metal Exposure and Toxicity (86 papers) and Phytochemicals and Antioxidant Activities (55 papers). Carl L. Keen is often cited by papers focused on Trace Elements in Health (198 papers), Heavy Metal Exposure and Toxicity (86 papers) and Phytochemicals and Antioxidant Activities (55 papers). Carl L. Keen collaborates with scholars based in United States, Australia and Argentina. Carl L. Keen's co-authors include M. Eric Gershwin, Andrea T. Borchers, Lucille S. Hurley, Harold H. Schmitz, Janet Y. Uriu‐Adams, César G. Fraga, Bo Lönnerdal, Patricia I. Oteiza, Michael S. Clegg and Roberta R. Holt and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and The Lancet.

In The Last Decade

Carl L. Keen

532 papers receiving 24.3k 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.

(–)-Epicatechin mediates beneficial effects of flavanol-rich cocoa on vascular function in humans

2006 824 citations Carl L. Keen, Harold H. Schmitz et al. profile →
Copper, oxidative stress, and human health

2005 742 citations Janet Y. Uriu‐Adams, Carl L. Keen profile →
Influence of ashing techniques on the analysis of trace elements in animal tissue

1981 428 citations Carl L. Keen, Bo Lönnerdal et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Carl L. Keen United States	84	8.4k	5.7k	4.2k	3.6k	3.3k	540	25.7k
Kunio Yagi Japan	28	4.8k 0.6×	4.2k 0.7×	7.1k 1.7×	3.0k 0.8×	4.7k 1.4×	109	31.9k
Marián Valko Slovakia	41	5.6k 0.7×	4.0k 0.7×	9.2k 2.2×	5.9k 1.7×	3.7k 1.1×	166	34.4k
JJ Strain United Kingdom	56	5.6k 0.7×	9.9k 1.7×	5.2k 1.2×	1.8k 0.5×	7.3k 2.2×	303	32.2k
Nobuko Ohishi Japan	26	3.9k 0.5×	3.1k 0.5×	6.7k 1.6×	2.9k 0.8×	4.3k 1.3×	123	28.3k
Hiroshi Ohkawa Japan	17	3.6k 0.4×	2.7k 0.5×	6.6k 1.6×	2.8k 0.8×	4.5k 1.4×	27	27.2k
Balz Frei United States	87	8.2k 1.0×	10.7k 1.9×	6.7k 1.6×	1.1k 0.3×	2.2k 0.7×	212	30.7k
Aalt Bast Netherlands	80	2.9k 0.3×	5.8k 1.0×	7.9k 1.9×	868 0.2×	2.4k 0.7×	553	27.5k
B N Ames United States	66	3.3k 0.4×	3.7k 0.6×	12.8k 3.0×	1.8k 0.5×	2.2k 0.6×	94	27.1k
Mohammad Abdollahı Iran	93	3.6k 0.4×	1.9k 0.3×	8.5k 2.0×	4.2k 1.2×	8.9k 2.7×	1.1k	39.3k
Debasis Bagchi United States	66	2.2k 0.3×	3.2k 0.6×	4.1k 1.0×	2.8k 0.8×	2.9k 0.9×	348	16.7k

Countries citing papers authored by Carl L. Keen

Since Specialization

Citations

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

Fields of papers citing papers by Carl L. Keen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Carl L. Keen. 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 Carl L. Keen. The network helps show where Carl L. Keen may publish in the future.

Co-authorship network of co-authors of Carl L. Keen

This figure shows the co-authorship network connecting the top 25 collaborators of Carl L. Keen. A scholar is included among the top collaborators of Carl L. Keen 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 Carl L. Keen. Carl L. Keen 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

Holt, Roberta R., Daniela Barile, Selina C. Wang, et al.. (2022). Chardonnay Marc as a New Model for Upcycled Co-products in the Food Industry: Concentration of Diverse Natural Products Chemistry for Consumer Health and Sensory Benefits. Journal of Agricultural and Food Chemistry. 70(48). 15007–15027. 6 indexed citations

Sivamani, Raja K., et al.. (2021). Plant-Based Foods for Skin Health: A Narrative Review. Journal of the Academy of Nutrition and Dietetics. 122(3). 614–629. 26 indexed citations

Ilomäki, Jenni, et al.. (2019). Medication Regimen Complexity In 8 Australian Residential Aged Care Facilities: Impact Of Age, Length Of Stay, Comorbidity, Frailty, And Dependence In Activities Of Daily Living. SHILAP Revista de lepidopterología. 1 indexed citations

Polagruto, John A., Heidrun B. Gross, Faranak Kamangar, et al.. (2007). Platelet Reactivity in Male Smokers Following the Acute Consumption of a Flavanol-Rich Grapeseed Extract. Journal of Medicinal Food. 10(4). 725–730. 30 indexed citations

Selmi, Carlo, Christopher L. Bowlus, Carl L. Keen, & M. Eric Gershwin. (2007). Non-Alcoholic Fatty Liver Disease: The New Epidemic and the Need for Novel Nutritional Approaches. Journal of Medicinal Food. 10(4). 563–565. 9 indexed citations

Uriu‐Adams, Janet Y., Robert B. Rucker, Joel Commisso, & Carl L. Keen. (2005). Diabetes and dietary copper alter 67Cu metabolism and oxidant defense in the rat. The Journal of Nutritional Biochemistry. 16(5). 312–320. 42 indexed citations

Kenny, Thomas P., Carl L. Keen, Paul D. Jones, et al.. (2004). Cocoa Procyanidins Inhibit Proliferation and Angiogenic Signals in Human Dermal Microvascular Endothelial Cells Following Stimulation by Low-Level H₂O₂. Experimental Biology and Medicine. 229(8). 765–771. 14 indexed citations

Borchers, Andrea T., Carl L. Keen, & M. Eric Gershwin. (2002). Microgravity and immune responsiveness. Nutrition. 18(10). 889–898. 89 indexed citations

Chang, Christopher, et al.. (1993). The influence of chronic yogurt consumption on populations of young and elderly adults. 9(1). 53–64. 51 indexed citations

10.

Dressendorfer, Rudolph H., Carl L. Keen, Charles E. Wade, J. R. Claybaugh, & GERALD C. TIMMIS. (1991). Development of Runner's Anemia during a 20-Day Road Race: Effect of Iron Supplements. International Journal of Sports Medicine. 12(3). 332–336. 10 indexed citations

11.

Halpern, G. M., et al.. (1991). Influence of long-term yoghurt consumption in young adults. 7(4). 205–210. 74 indexed citations

12.

Walter, R.M., Toshikazu Aoki, & Carl L. Keen. (1991). Acute oral manganese administration does not consistently affect glucose tolerance in non-diabetic and type II diabetic humans. The Journal of Trace Elements in Experimental Medicine. 4(2). 73–79. 6 indexed citations

13.

Reis, Brenda L., Carl L. Keen, Bo Lönnerdal, & Lucille S. Hurley. (1991). Longitudinal Changes in the Mineral Composition of Mouse Milk and the Relationship to Zinc Metabolism of the Suckling Neonate. Journal of Nutrition. 121(5). 687–699. 7 indexed citations

14.

Halsted, C H & Carl L. Keen. (1990). Alcoholism and micronutrient metabolism and deficiencies.. European Journal of Gastroenterology & Hepatology. 2(6). 399–405. 24 indexed citations

15.

Rogers, John M., Bo Lönnerdal, Lucille S. Hurley, & Carl L. Keen. (1987). Iron and Zinc Concentrations and 59Fe Retention in Developing Fetuses of Zinc-Deficient Rats. Journal of Nutrition. 117(11). 1875–1882. 31 indexed citations

16.

Keen, Carl L., et al.. (1985). Vanadium toxicity in adult and developing rats: Role of peroxidative damage. Federation Proceedings. 44(3). 1 indexed citations

17.

Keen, Carl L., et al.. (1984). Copper bioavailability from human milk, infant formulas and cow's milk using the suckling rat. Federation Proceedings. 43(3). 2 indexed citations

18.

Hurley, L. S., Carl L. Keen, & Bo Lönnerdal. (1983). Aspects of trace element interactions during development.. PubMed. 42(6). 1735–9. 32 indexed citations

19.

Keen, Carl L., et al.. (1982). Iron supplementation of milk through iron-lactoferrin: Effect on tissue iron and manganese. Federation Proceedings. 41(3). 2 indexed citations

20.

Keen, Carl L., et al.. (1979). Transfer of zinc, copper, and iron as nitrilotriacetic acid (NTA) chelates into rat milk and tissues. Federation Proceedings. 38. 1 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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