Thomas D. Landefeld

1.4k total citations
39 papers, 1.2k citations indexed

About

Thomas D. Landefeld is a scholar working on Agronomy and Crop Science, Endocrinology, Diabetes and Metabolism and Genetics. According to data from OpenAlex, Thomas D. Landefeld has authored 39 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Agronomy and Crop Science, 17 papers in Endocrinology, Diabetes and Metabolism and 13 papers in Genetics. Recurrent topics in Thomas D. Landefeld's work include Growth Hormone and Insulin-like Growth Factors (17 papers), Reproductive Physiology in Livestock (16 papers) and Hypothalamic control of reproductive hormones (12 papers). Thomas D. Landefeld is often cited by papers focused on Growth Hormone and Insulin-like Growth Factors (17 papers), Reproductive Physiology in Livestock (16 papers) and Hypothalamic control of reproductive hormones (12 papers). Thomas D. Landefeld collaborates with scholars based in United States and France. Thomas D. Landefeld's co-authors include Jadwiga K. Kepa, John C. Marshall, S Zmeili, Stathis Papavasiliou, Ricardo V. Lloyd, Richard A. Maurer, Irving Boime, Fred J. Karsch, James M. Suttie and William W. Chin and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

Thomas D. Landefeld

39 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Thomas D. Landefeld United States 20 547 436 375 276 273 39 1.2k
Nadine Martinat France 17 442 0.8× 180 0.4× 261 0.7× 141 0.5× 346 1.3× 37 923
William W. Chin United States 14 685 1.3× 636 1.5× 681 1.8× 85 0.3× 488 1.8× 18 1.5k
J. L. Tilly United States 18 302 0.6× 134 0.3× 255 0.7× 114 0.4× 334 1.2× 27 870
H. Loosfelt France 16 365 0.7× 264 0.6× 622 1.7× 84 0.3× 569 2.1× 24 1.2k
Margaret H. Abel United Kingdom 15 667 1.2× 133 0.3× 435 1.2× 104 0.4× 322 1.2× 21 1.2k
B C Nisula United States 19 432 0.8× 431 1.0× 176 0.5× 49 0.2× 318 1.2× 33 1.2k
Harry Lipner United States 15 251 0.5× 160 0.4× 117 0.3× 173 0.6× 125 0.5× 47 737
Todd A. Farmerie United States 13 319 0.6× 96 0.2× 293 0.8× 147 0.5× 309 1.1× 18 748
Shunzo Taii Japan 16 260 0.5× 174 0.4× 141 0.4× 277 1.0× 313 1.1× 29 1.0k
P F Whitelaw United Kingdom 12 464 0.8× 98 0.2× 189 0.5× 105 0.4× 253 0.9× 14 881

Countries citing papers authored by Thomas D. Landefeld

Since Specialization
Citations

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

Fields of papers citing papers by Thomas D. Landefeld

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas D. Landefeld. 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 Thomas D. Landefeld. The network helps show where Thomas D. Landefeld may publish in the future.

Co-authorship network of co-authors of Thomas D. Landefeld

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas D. Landefeld. A scholar is included among the top collaborators of Thomas D. Landefeld 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 Thomas D. Landefeld. Thomas D. Landefeld is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
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Lloyd, Ricardo V., Long Jin, Elzbieta Kulig, et al.. (1993). Pit-1/ghf-1 transcription factor expression in rodent pituitaries. Endocrine Pathology. 4(3). 146–154. 4 indexed citations
3.
Padmanabhan, Vasantha, et al.. (1992). Effect of Nutritional Repletion on Pituitary and Serum Follicle-Stimulating Hormone Isoform Distribution in Growth-Retarded Lambs 1. Biology of Reproduction. 46(5). 964–971. 8 indexed citations
4.
Padmanabhan, Vasantha, Helen I’Anson, Ruth I. Wood, et al.. (1992). Circulating bioactive follicle-stimulating hormone and less acidic follicle-stimulating hormone isoforms increase during experimental induction of puberty in the female lamb.. Endocrinology. 131(1). 213–220. 38 indexed citations
5.
6.
Jin, Long, et al.. (1990). Gonadotropin-Releasing Hormone Regulates Gonadotropinβ-Subunit and Chromogranin-B Messenger Ribonucleic Acids in Cultured Chromogranin-A-Positive Pituitary Adenomas*. The Journal of Clinical Endocrinology & Metabolism. 71(3). 622–630. 18 indexed citations
7.
Landefeld, Thomas D., et al.. (1989). Effects of Estradiol on Gonadotropin Subunit Messenger Ribonucleic Acid Amounts during an Induced Gonadotropin Surge in Anestrous Ewes. Molecular Endocrinology. 3(1). 10–14. 12 indexed citations
8.
9.
Landefeld, Thomas D. & James M. Suttie. (1989). Changes in Messenger Ribonucleic Acid Concentrations and Plasma Levels of Growth Hormone during the Ovine Estrous Cycle and in Response to Exogenous Estradiol*. Endocrinology. 125(3). 1474–1477. 34 indexed citations
10.
Haisenleder, Daniel J., Girolamo A. Ortolano, Thomas D. Landefeld, S Zmeili, & John C. Marshall. (1989). Prolactin Messenger Ribonucleic Acid Concentrations in 4-Day Cycling Rats and During the Prolactin Surge*. Endocrinology. 124(4). 2023–2028. 20 indexed citations
11.
Leung, Kwanyee, Kyoon Eon Kim, Richard A. Maurer, & Thomas D. Landefeld. (1988). Divergent Changes in the Concentrations of Gonadotropin β-Subunit Messenger Ribonucleic Acid during the Estrous Cycle of Sheep. Molecular Endocrinology. 2(3). 272–276. 40 indexed citations
12.
Leung, Kwanyee, et al.. (1987). Differential Regulation of Gonadotropin Subunit Messenger Ribonucleic Acids by Gonadotropin-Releasing Hormone Pulse Frequency in Ewes. Molecular Endocrinology. 1(10). 724–728. 56 indexed citations
13.
Papavasiliou, Stathis, S Zmeili, Sleman Khoury, et al.. (1986). Gonadotropin-releasing hormone differentially regulates expression of the genes for luteinizing hormone alpha and beta subunits in male rats.. Proceedings of the National Academy of Sciences. 83(11). 4026–4029. 122 indexed citations
14.
15.
Landefeld, Thomas D. & Jadwiga K. Kepa. (1984). Regulation of LH beta subunit mRNA in the sheep pituitary gland during different feedback states of estradiol. Biochemical and Biophysical Research Communications. 122(3). 1307–1313. 29 indexed citations
16.
Landefeld, Thomas D. & Jadwiga K. Kepa. (1984). Pituitary alpha subunit mRNA amounts during the sheep estrous cycle. Assessment by cDNA hybridizations.. Journal of Biological Chemistry. 259(20). 12817–12820. 16 indexed citations
17.
Savoy‐Moore, Ruth T., Thomas D. Landefeld, & John C. Marshall. (1980). Hormonal measurement in rat anterior pituitary cell cultures: Loss of immunoreactive LH counteracted by fetal calf serum and bacitracin. Molecular and Cellular Endocrinology. 18(1). 11–20. 13 indexed citations
18.
Landefeld, Thomas D., Kenneth L. Campbell, & A. REES MIDGLEY. (1979). Rapid changes in the synthesis of specific ovarian granulosa cell proteins induced by human choriogonadotropin.. Proceedings of the National Academy of Sciences. 76(10). 5153–5157. 16 indexed citations
19.
Rathnam, P., Yukio Fujiki, Thomas D. Landefeld, & B.B. Saxena. (1978). Isolation and amino acid sequence of the alpha-subunit of follicle-stimulating hormone from equine pituitary glands. Journal of Biological Chemistry. 253(15). 5355–5362. 19 indexed citations
20.
Landefeld, Thomas D. & W. H. McShan. (1974). Equine luteinizing hormone and its subunits. Isolation and physicochemical properties. Biochemistry. 13(7). 1389–1393. 10 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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