Ernst A. Lien

5.0k total citations
81 papers, 4.1k citations indexed

About

Ernst A. Lien is a scholar working on Genetics, Oncology and Pharmacology. According to data from OpenAlex, Ernst A. Lien has authored 81 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Genetics, 26 papers in Oncology and 25 papers in Pharmacology. Recurrent topics in Ernst A. Lien's work include Estrogen and related hormone effects (52 papers), Pharmacogenetics and Drug Metabolism (24 papers) and Inflammatory mediators and NSAID effects (17 papers). Ernst A. Lien is often cited by papers focused on Estrogen and related hormone effects (52 papers), Pharmacogenetics and Drug Metabolism (24 papers) and Inflammatory mediators and NSAID effects (17 papers). Ernst A. Lien collaborates with scholars based in Norway, Italy and United States. Ernst A. Lien's co-authors include Per Magne Ueland, Per Eystein Lønning, E. Solheim, Gunnar Mellgren, Pål I. Holm, Jennifer Gjerde, Stener Kvinnsland, Elton R. Kisanga, Gry Kvalheim and A. Aakvaag and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Clinical Oncology and PLoS ONE.

In The Last Decade

Ernst A. Lien

81 papers receiving 4.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ernst A. Lien Norway	37	2.0k	1.3k	930	790	681	81	4.1k
Sophie Visvikis‐Siest France	43	1.2k 0.6×	353 0.3×	1.8k 1.9×	304 0.4×	2.1k 3.0×	245	7.4k
Sook Wah Yee United States	41	521 0.3×	2.0k 1.5×	1.8k 2.0×	854 1.1×	497 0.7×	101	5.1k
Mary J. Malloy United States	45	973 0.5×	625 0.5×	1.6k 1.8×	165 0.2×	1.9k 2.8×	137	7.2k
Eran Leitersdorf Israel	41	665 0.3×	1.2k 0.9×	2.8k 3.0×	327 0.4×	2.5k 3.7×	152	8.9k
Jeffrey Stevens United States	29	313 0.2×	1.2k 0.9×	1.2k 1.2×	2.1k 2.6×	253 0.4×	59	4.6k
Hiltrud Brauch Germany	40	1.7k 0.8×	2.3k 1.7×	3.4k 3.6×	966 1.2×	265 0.4×	162	6.8k
Kaname Kawajiri Japan	44	1.0k 0.5×	1.2k 0.9×	3.9k 4.2×	2.0k 2.5×	323 0.5×	76	6.8k
Kazuto Yasuda United States	30	570 0.3×	2.7k 2.0×	1.0k 1.1×	2.6k 3.2×	569 0.8×	59	5.4k
Jan Albert Kuivenhoven Netherlands	52	1.0k 0.5×	730 0.6×	2.2k 2.4×	219 0.3×	4.4k 6.5×	157	10.5k
E. Di Salle Italy	31	2.2k 1.1×	1.2k 0.9×	760 0.8×	260 0.3×	534 0.8×	74	3.3k

Countries citing papers authored by Ernst A. Lien

Since Specialization

Citations

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

Fields of papers citing papers by Ernst A. Lien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ernst A. Lien

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

Peccatori, Fedro A., Giovanni Codacci-Pisanelli, Gunnar Mellgren, et al.. (2020). First-in-human pharmacokinetics of tamoxifen and its metabolites in the milk of a lactating mother: a case study. ESMO Open. 5(5). e000859–e000859. 8 indexed citations

Kvaløy, Jan Terje, Kirsten Lode, Ragna Lind, et al.. (2019). Drug monitoring of tamoxifen metabolites predicts vaginal dryness and verifies a low discontinuation rate from the Norwegian Prescription Database. Breast Cancer Research and Treatment. 177(1). 185–195. 18 indexed citations

Johansson, Harriet, Sara Gandini, Davide Serrano, et al.. (2016). A pooled analysis of CYP2D6 genotype in breast cancer prevention trials of low-dose tamoxifen. Breast Cancer Research and Treatment. 159(1). 97–108. 11 indexed citations

Christensen, Monika H. E., Simon N. Dankel, Jan Erik Varhaug, et al.. (2011). Primary Hyperparathyroidism Influences the Expression of Inflammatory and Metabolic Genes in Adipose Tissue. PLoS ONE. 6(6). e20481–e20481. 33 indexed citations

DeCensi, Andrea, Aliana Guerrieri‐Gonzaga, Sara Gandini, et al.. (2010). Prognostic significance of Ki-67 labeling index after short-term presurgical tamoxifen in women with ER-positive breast cancer. Annals of Oncology. 22(3). 582–587. 59 indexed citations

Gjerde, Jennifer, Harald Breilid, Steinar Lundgren, et al.. (2007). Effects of CYP2D6 and SULT1A1 genotypes including SULT1A1 gene copy number on tamoxifen metabolism. Annals of Oncology. 19(1). 56–61. 122 indexed citations

Johansson, Harriet, Massimiliano Cazzaniga, Bernardo Bonanni, et al.. (2006). Effects of low dose tamoxifen on circulating levels of hormones, C-telopeptide and HER2 extracellular domain in women with primary breast cancer. Cancer Research. 66. 753–753. 2 indexed citations

Geisler, Jürgen, Per Eystein Lønning, Lars Erik Krag, et al.. (2006). Changes in bone and lipid metabolism in postmenopausal women with early breast cancer after terminating 2-year treatment with exemestane: A randomised, placebo-controlled study. European Journal of Cancer. 42(17). 2968–2975. 84 indexed citations

Gjerde, Jennifer, et al.. (2005). Identification and quantification of tamoxifen and four metabolites in serum by liquid chromatography–tandem mass spectrometry. Journal of Chromatography A. 1082(1). 6–14. 54 indexed citations

10.

Kisanga, Elton R., et al.. (2005). Induction of hepatic drug-metabolising enzymes and tamoxifen metabolite profile in relation to administration route during low-dose treatment in nude rats. The Journal of Steroid Biochemistry and Molecular Biology. 94(5). 489–498. 8 indexed citations

11.

Lien, Ernst A., Steinar Hustad, Bjørn Gunnar Nedrebø, Ottar Nygård, & Per Magne Ueland. (2001). Total Plasma Homocysteine in Hypo- and Hyperthyroidism: Covariations and Causality. The Journal of Clinical Endocrinology & Metabolism. 86(4). 1846–1846. 2 indexed citations

12.

Ulvik, Arve, et al.. (2001). Smoking, folate and methylenetetrahydrofolate reductase status as interactive determinants of adenomatous and hyperplastic polyps of colorectum. American Journal of Medical Genetics. 101(3). 246–254. 78 indexed citations

13.

Love, Richard R., Gun Anker, H. Refsum, et al.. (1999). Serum homocysteine levels in postmenopausal breast cancer patients treated with tamoxifen. Cancer Letters. 145(1-2). 73–77. 11 indexed citations

14.

Nedrebø, Bjørn Gunnar, U.‐B. Ericsson, Ottar Nygård, et al.. (1998). Plasma total homocysteine levels in hyperthyroid and hypothyroid patients. Metabolism. 47(1). 89–93. 120 indexed citations

15.

Geisler, Jürgen, Ernst A. Lien, Dagfinn Ekse, & Per Eystein Lønning. (1997). Influence of aminoglutethimide on plasma levels of estrone sulphate and dehydroepiandrosterone sulphate in postmenopausal breast cancer patients. The Journal of Steroid Biochemistry and Molecular Biology. 63(1-3). 53–58. 19 indexed citations

16.

Lønning, Per Eystein, Dag Clement Johannessen, Ernst A. Lien, et al.. (1995). Influence of tamoxifen on sex hormones, gonadotrophins and sex hormone binding globulin in postmenopausal breast cancer patients. The Journal of Steroid Biochemistry and Molecular Biology. 52(5). 491–496. 55 indexed citations

17.

Millward, Michael, Ernst A. Lien, Angela Byun Robinson, & Brian M.J. Cantwell. (1994). High-Dose (480 mg/day) Tamoxifen with Etoposide: A Study of a Potential Multi-Drug Resistance Modulator. Oncology. 51(1). 79–83. 22 indexed citations

18.

Millward, Michael, Brian M.J. Cantwell, Ernst A. Lien, James Carmichael, & Adrian L. Harris. (1992). Intermittent high-dose tamoxifen as a potential modifier of multidrug resistance. European Journal of Cancer. 28(4-5). 805–810. 47 indexed citations

19.

Lønning, Per Eystein, et al.. (1992). Clinical Pharmacokinetics of Endocrine Agents Used in Advanced Breast Cancer. Clinical Pharmacokinetics. 22(5). 327–358. 50 indexed citations

20.

Lien, Ernst A., Dag Clement Johannessen, A. Aakvaag, & Per Eystein Lønning. (1992). Influence of tamoxifen, aminoglutethimide and goserelin on human plasma IGF-I levels in breast cancer patients. The Journal of Steroid Biochemistry and Molecular Biology. 41(3-8). 541–543. 43 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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