J A Ontko

1.2k total citations
25 papers, 1.0k citations indexed

About

J A Ontko is a scholar working on Molecular Biology, Physiology and Biochemistry. According to data from OpenAlex, J A Ontko has authored 25 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Molecular Biology, 11 papers in Physiology and 10 papers in Biochemistry. Recurrent topics in J A Ontko's work include Lipid metabolism and biosynthesis (10 papers), Diet, Metabolism, and Disease (8 papers) and Diet and metabolism studies (7 papers). J A Ontko is often cited by papers focused on Lipid metabolism and biosynthesis (10 papers), Diet, Metabolism, and Disease (8 papers) and Diet and metabolism studies (7 papers). J A Ontko collaborates with scholars based in United States and United Kingdom. J A Ontko's co-authors include Naoyuki Fukuda, Takashi Ide, M. J. Azain, David A. Otto, F F Chao, Qi Cheng, Rollin H. Thayer, Nassrin Dashti, Jim Kelley and Munehiko Yamamoto and has published in prestigious journals such as Journal of Biological Chemistry, American Journal of Clinical Nutrition and Biochemical Journal.

In The Last Decade

J A Ontko

25 papers receiving 981 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J A Ontko United States 18 399 321 249 243 239 25 1.0k
Carl M. Nepokroeff United States 13 508 1.3× 307 1.0× 186 0.7× 163 0.7× 191 0.8× 18 1.1k
Hitomi Fukuda Japan 22 584 1.5× 495 1.5× 201 0.8× 321 1.3× 200 0.8× 53 1.4k
Erling N. Christiansen Norway 19 519 1.3× 394 1.2× 156 0.6× 403 1.7× 240 1.0× 34 1.1k
Joseph A. Ontko United States 17 390 1.0× 327 1.0× 264 1.1× 86 0.4× 207 0.9× 32 913
Akihiko Katsurada Japan 16 392 1.0× 275 0.9× 113 0.5× 147 0.6× 147 0.6× 23 814
Claude Kohl France 17 641 1.6× 320 1.0× 205 0.8× 90 0.4× 105 0.4× 26 1.0k
Osvaldo Mercuri Argentina 15 272 0.7× 223 0.7× 109 0.4× 524 2.2× 278 1.2× 37 842
John Y. Kiyasu United States 10 461 1.2× 224 0.7× 90 0.4× 177 0.7× 405 1.7× 14 1.0k
Raúl O. Peluffo Argentina 14 435 1.1× 237 0.7× 111 0.4× 759 3.1× 511 2.1× 21 1.2k
Annette P. Thelen United States 17 969 2.4× 317 1.0× 159 0.6× 350 1.4× 407 1.7× 18 1.5k

Countries citing papers authored by J A Ontko

Since Specialization
Citations

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

Fields of papers citing papers by J A Ontko

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J A Ontko

This figure shows the co-authorship network connecting the top 25 collaborators of J A Ontko. A scholar is included among the top collaborators of J A Ontko 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 J A Ontko. J A Ontko 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.
Harris, WS, et al.. (1997). Influence of n-3 fatty acid supplementation on the endogenous activities of plasma lipases. American Journal of Clinical Nutrition. 66(2). 254–260. 105 indexed citations
2.
Freeman, D A & J A Ontko. (1992). Accumulation and mobilization of triglycerides and cholesteryl esters in Leydig tumor cells.. Journal of Lipid Research. 33(8). 1139–1146. 17 indexed citations
3.
Azain, M. J. & J A Ontko. (1990). Ketone Body Utilization for Lipogenesis in the Perfused Liver of the Obese Zucker Rat. Hormone and Metabolic Research. 22(11). 561–565. 3 indexed citations
4.
Chao, F F, David L. Stiers, & J A Ontko. (1990). Hepatocellular triglyceride synthesis and transfer to lipid droplets and nascent very low density lipoproteins.. Journal of Lipid Research. 27(11). 1174–1181. 34 indexed citations
5.
Ontko, J A, Qi Cheng, & Munehiko Yamamoto. (1990). Metabolic factors underlying high serum triglycerides in the normal hamster.. Journal of Lipid Research. 31(11). 1983–1992. 18 indexed citations
6.
Azain, M. J. & J A Ontko. (1989). An explanation for decreased ketogenesis in the liver of the obese Zucker rat. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 257(4). R822–R828. 6 indexed citations
7.
Ontko, J A, et al.. (1989). Elevation of liver diacylglycerols and molecular species of diacylglycerols in rats fed a lipogenic diet.. Journal of Lipid Research. 30(5). 691–699. 9 indexed citations
8.
Brindle, Nicholas P.J. & J A Ontko. (1988). α-adrenergic suppression of very-low-density-lipoprotein triacylglycerol secretion by isolated rat hepatocytes. Biochemical Journal. 250(2). 363–368. 28 indexed citations
9.
Yamamoto, Masato, Iwahiko Yamamoto, Yuichi Tanaka, & J A Ontko. (1987). Fatty acid metabolism and lipid secretion by perfused livers from rats fed laboratory stock and sucrose-rich diets. Journal of Lipid Research. 28(10). 1156–1165. 46 indexed citations
10.
Azain, M. J., Naoyuki Fukuda, F F Chao, Munehiko Yamamoto, & J A Ontko. (1985). Contributions of fatty acid and sterol synthesis to triglyceride and cholesterol secretion by the perfused rat liver in genetic hyperlipemia and obesity.. Journal of Biological Chemistry. 260(1). 174–181. 62 indexed citations
11.
Yamamoto, Masato, Naoyuki Fukuda, Joseph Triscari, Ann C. Sullivan, & J A Ontko. (1985). Decreased hepatic production of very low density lipoproteins following activation of fatty acid oxidation by Ro 22-0654.. Journal of Lipid Research. 26(10). 1196–1204. 21 indexed citations
12.
Fukuda, Naoyuki & J A Ontko. (1984). Interactions between fatty acid synthesis, oxidation, and esterification in the production of triglyceride-rich lipoproteins by the liver.. Journal of Lipid Research. 25(8). 831–842. 85 indexed citations
13.
Dashti, Nassrin, Jim Kelley, Rollin H. Thayer, & J A Ontko. (1983). Concurrent inductions of avian hepatic lipogenesis, plasma lipids, and plasma apolipoprotein B by estrogen. Journal of Lipid Research. 24(4). 368–380. 84 indexed citations
14.
Fukuda, Naoyuki, M. J. Azain, & J A Ontko. (1982). Altered hepatic metabolism of free fatty acids underlying hypersecretion of very low density lipoproteins in the genetically obese Zucker rats.. Journal of Biological Chemistry. 257(23). 14066–14072. 95 indexed citations
15.
Ide, Takashi & J A Ontko. (1981). Increased secretion of very low density lipoprotein triglyceride following inhibition of long chain fatty acid oxidation in isolated rat liver.. Journal of Biological Chemistry. 256(20). 10247–10255. 137 indexed citations
16.
Triscari, Joseph, J A Ontko, & Ann C. Sullivan. (1980). Comparison of nutritional influences on rat hepatic lipid synthesis in isolated cells and in vivo.. Nutrition reports international. 21(2). 269–277. 5 indexed citations
17.
Otto, David A. & J A Ontko. (1978). Activation of mitochondrial fatty acid oxidation by calcium. Conversion to the energized state.. Journal of Biological Chemistry. 253(3). 789–799. 60 indexed citations
18.
Garland, P. B., David Shepherd, David G. Nicholls, & J A Ontko. (1968). Energy-dependent control of the tricarboxylic acid cycle by fatty acid oxidation in rat liver mitochondria. Advances in Enzyme Regulation. 6. 3–30. 40 indexed citations
19.
Ontko, J A & P J Randle. (1967). Inhibition of Glucose Utilization by Perfusion with Chylomicrons in Rat Heart. Biochemical Journal. 104(3). 43C–44C. 11 indexed citations
20.
Ontko, J A & D.B. Zilversmit. (1966). Correlation Between Concentrations of Circulating Free Fatty Acids and Ketone Bodies.. Experimental Biology and Medicine. 121(2). 319–321. 26 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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