Halvor N. Christensen

9.8k total citations · 1 hit paper
147 papers, 7.3k citations indexed

About

Halvor N. Christensen is a scholar working on Molecular Biology, Biochemistry and Clinical Biochemistry. According to data from OpenAlex, Halvor N. Christensen has authored 147 papers receiving a total of 7.3k indexed citations (citations by other indexed papers that have themselves been cited), including 66 papers in Molecular Biology, 61 papers in Biochemistry and 40 papers in Clinical Biochemistry. Recurrent topics in Halvor N. Christensen's work include Amino Acid Enzymes and Metabolism (58 papers), Metabolism and Genetic Disorders (40 papers) and Drug Transport and Resistance Mechanisms (15 papers). Halvor N. Christensen is often cited by papers focused on Amino Acid Enzymes and Metabolism (58 papers), Metabolism and Genetic Disorders (40 papers) and Drug Transport and Resistance Mechanisms (15 papers). Halvor N. Christensen collaborates with scholars based in United States, United Kingdom and Sweden. Halvor N. Christensen's co-authors include Dale L. Oxender, Thomas R. Riggs, Marie Liang, Mary E. Handlogten, Hitoshi Akedo, Charles G. Winter, Lois M. Walker, Walter B. Dempsey, Edwin L. Thomas and Yukiharu Inui and has published in prestigious journals such as Nature, Science and New England Journal of Medicine.

In The Last Decade

Halvor N. Christensen

140 papers receiving 6.5k citations

Hit Papers

Distinct Mediating Systems for the Transport of Neutral A... 1963 2026 1984 2005 1963 250 500 750
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.

  1. Distinct Mediating Systems for the Transport of Neutral Amino Acids by the Ehrlich Cell
    1963 755 citations Halvor N. Christensen et al. Journal of Biological Chemistry profile →

Peers

Halvor N. Christensen
E. Racker United States
Philipp Strittmatter United States
Gordon M. Tomkins United States
Santiago Grisolı́a Spain
George Rouser United States
H N Christensen United States
Guido Guidotti United States
Philip P. Cohen United States
Dale L. Oxender United States
K.W.A. Wirtz Netherlands
E. Racker United States
Halvor N. Christensen
Citations per year, relative to Halvor N. Christensen Halvor N. Christensen (= 1×) peers E. Racker

Countries citing papers authored by Halvor N. Christensen

Since Specialization
Citations

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

Fields of papers citing papers by Halvor N. Christensen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Halvor N. Christensen. 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 Halvor N. Christensen. The network helps show where Halvor N. Christensen may publish in the future.

Co-authorship network of co-authors of Halvor N. Christensen

This figure shows the co-authorship network connecting the top 25 collaborators of Halvor N. Christensen. A scholar is included among the top collaborators of Halvor N. Christensen 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 Halvor N. Christensen. Halvor N. Christensen 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.
Christensen, Halvor N.. (2009). Amino Acid Nutrition: A Two-Step Absorptive Process. Nutrition Reviews. 51(4). 95–100. 2 indexed citations
2.
Christensen, Halvor N.. (2009). Hepatic Amino Acid Transport Primary to the Urea Cycle in Regulation of Biologic Neutrality. Nutrition Reviews. 53(3). 74–76.
3.
Christensen, Halvor N.. (2009). Is PQQ a Significant Nutrient in Addition to Its Role as a Therapeutic Agent in the Higher Animal?. Nutrition Reviews. 52(1). 24–25. 2 indexed citations
4.
Christensen, Halvor N.. (2009). A Retrovirus Uses a Cationic Amino Acid Transporter as a Cell Surface Receptor. Nutrition Reviews. 50(2). 47–48. 1 indexed citations
5.
Christensen, Halvor N.. (2009). Amino Acid Nutrition Across the Placenta. Nutrition Reviews. 50(1). 13–15.
6.
Christensen, Halvor N.. (2009). Implications of the Cellular Transport Step for Amino Acid Metabolism. Nutrition Reviews. 35(6). 129–133.
7.
Christensen, Halvor N.. (1989). [38] Distinguishing amino acid transport systems of a given cell or tissue. Methods in enzymology on CD-ROM/Methods in enzymology. 173. 576–616. 95 indexed citations
8.
Stewart, Barbra H., Ellen J. Collarini, Ronald L. Pisoni, & Halvor N. Christensen. (1989). Separate and shared lysosomal transport of branched and aromatic dipolar amino acids. Biochimica et Biophysica Acta (BBA) - Biomembranes. 987(2). 145–153. 13 indexed citations
9.
10.
Christensen, Halvor N.. (1979). Exploiting Amino acid Structure to Learn About Membrane Transport. Advances in enzymology and related areas of molecular biology/Advances in enzymology and related subjects. 49. 41–101. 128 indexed citations
11.
García‐Sancho, Javier, Ana Sánchez, & Halvor N. Christensen. (1977). Free carboxylate groups required for transport of neutral amino acids by the Ehrlich ascites-tumor cell. Biochimica et Biophysica Acta (BBA) - Biomembranes. 465(2). 426–428. 3 indexed citations
12.
Christensen, Halvor N., et al.. (1976). Heterogeneity of histidine transport in the Ehrlich cell. Biochimica et Biophysica Acta (BBA) - Biomembranes. 455(1). 144–151. 20 indexed citations
13.
Christensen, Halvor N.. (1976). Precautions that we are observing one transport system unobscured by the contributions of others. Journal of Cellular Physiology. 89(4). 603–604. 12 indexed citations
14.
Christensen, Halvor N.. (1972). On the Meaning of Effects of Substrate Structure on Biological Transport. PubMed. 4(1). 233–263. 14 indexed citations
15.
Christensen, Halvor N.. (1969). Some Special Kinetic Problems of Transport. Advances in enzymology and related areas of molecular biology/Advances in enzymology and related subjects. 32. 1–20. 148 indexed citations
16.
Christensen, Halvor N., et al.. (1967). A Distinct Na+-requiring Transport System for Alanine, Serine, Cysteine, and Similar Amino Acids. Journal of Biological Chemistry. 242(22). 5237–5246. 294 indexed citations
17.
Christensen, Halvor N.. (1958). Dissociation of Copper Pyridoxylidenevaline1. Journal of the American Chemical Society. 80(9). 2305–2308. 2 indexed citations
18.
Christensen, Halvor N.. (1955). Principles of Biochemistry. Academic Medicine. 30(2). 129–129. 5 indexed citations
19.
Christensen, Halvor N., et al.. (1952). AMINO ACID CONCENTRATION BY A FREE CELL NEOPLASM: RELATIONS AMONG AMINO ACIDS. Journal of Biological Chemistry. 198(1). 1–15. 174 indexed citations
20.
Christensen, Halvor N. & Thomas R. Riggs. (1952). CONCENTRATIVE UPTAKE OF AMINO ACIDS BY THE EHRLICH MOUSE ASCITES CARCINOMA CELL. Journal of Biological Chemistry. 194(1). 57–68. 183 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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