L. Ratnakumari

507 total citations
18 papers, 436 citations indexed

About

L. Ratnakumari is a scholar working on Clinical Biochemistry, Molecular Biology and Biochemistry. According to data from OpenAlex, L. Ratnakumari has authored 18 papers receiving a total of 436 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Clinical Biochemistry, 9 papers in Molecular Biology and 9 papers in Biochemistry. Recurrent topics in L. Ratnakumari's work include Metabolism and Genetic Disorders (14 papers), Amino Acid Enzymes and Metabolism (9 papers) and Mitochondrial Function and Pathology (4 papers). L. Ratnakumari is often cited by papers focused on Metabolism and Genetic Disorders (14 papers), Amino Acid Enzymes and Metabolism (9 papers) and Mitochondrial Function and Pathology (4 papers). L. Ratnakumari collaborates with scholars based in Canada, India and Belgium. L. Ratnakumari's co-authors include Roger F. Butterworth, Ijaz A. Qureshi, Ch.R.K. Murthy, Insaf Ahmed Qureshi, Dušica Maysinger, Roger F. Butterworth, Peter Paul De Deyn, Robert M. Audet, Bart Marescau and Adrianna Michalak and has published in prestigious journals such as Biochemical and Biophysical Research Communications, Journal of Pharmacology and Experimental Therapeutics and Biochemical Pharmacology.

In The Last Decade

L. Ratnakumari

17 papers receiving 427 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
L. Ratnakumari Canada 13 285 212 127 117 97 18 436
D. W. McCandless United States 13 102 0.4× 187 0.9× 39 0.3× 67 0.6× 158 1.6× 25 478
Richard C. Nielsen United States 6 113 0.4× 152 0.7× 67 0.5× 118 1.0× 97 1.0× 8 358
W Lysiak Poland 10 211 0.7× 256 1.2× 64 0.5× 149 1.3× 93 1.0× 17 449
Viruna Neergheen United Kingdom 11 61 0.2× 212 1.0× 60 0.5× 88 0.8× 62 0.6× 11 391
Margaret E. O’Flynn United States 12 330 1.2× 242 1.1× 74 0.6× 180 1.5× 46 0.5× 21 566
E.H.F. McGale United Kingdom 8 80 0.3× 89 0.4× 74 0.6× 63 0.5× 111 1.1× 15 338
Y. Mardens Belgium 10 149 0.5× 185 0.9× 51 0.4× 57 0.5× 50 0.5× 28 393
Mary J. Schmidt United States 7 212 0.7× 160 0.8× 35 0.3× 82 0.7× 33 0.3× 9 349
Tanja Scherer Switzerland 11 199 0.7× 274 1.3× 53 0.4× 94 0.8× 57 0.6× 15 411
Charles L. Hoppel United States 6 90 0.3× 340 1.6× 30 0.2× 154 1.3× 56 0.6× 7 505

Countries citing papers authored by L. Ratnakumari

Since Specialization
Citations

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

Fields of papers citing papers by L. Ratnakumari

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of L. Ratnakumari

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

All Works

18 of 18 papers shown
1.
Ratnakumari, L., Insaf Ahmed Qureshi, Roger F. Butterworth, Bart Marescau, & Peter Paul De Deyn. (1996). Arginine-related guanidino compounds and nitric oxide synthase in the brain of ornithine transcarbamylase deficient spf mutant mouse: effect of metabolic arginine deficiency. Neuroscience Letters. 215(3). 153–156. 28 indexed citations
2.
Ratnakumari, L., Insaf Ahmed Qureshi, & Roger F. Butterworth. (1996). Central Muscarinic Cholinergic M1 and M2 Receptor Changes in Congenital Ornithine Transcarbamylase Deficiency. Pediatric Research. 40(1). 25–28. 14 indexed citations
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Ratnakumari, L., Ijaz A. Qureshi, & Roger F. Butterworth. (1995). Loss of [3H]MK801 binding sites in brain in congenital ornithine transcarbamylase deficiency. Metabolic Brain Disease. 10(3). 249–255. 27 indexed citations
5.
Ratnakumari, L., Robert M. Audet, Insaf Ahmed Qureshi, & Roger F. Butterworth. (1995). Na+,K+-ATPase activities are increased in brain in both congenital and acquired hyperammonemic syndromes. Neuroscience Letters. 197(2). 89–92. 24 indexed citations
6.
Ratnakumari, L., Insaf Ahmed Qureshi, Dušica Maysinger, & Roger F. Butterworth. (1995). Developmental deficiency of the cholinergic system in congenitally hyperammonemic spf mice: effect of acetyl-L-carnitine.. Journal of Pharmacology and Experimental Therapeutics. 274(1). 437–443. 29 indexed citations
7.
Ratnakumari, L., Ijaz A. Qureshi, & Roger F. Butterworth. (1994). Evidence for cholinergic neuronal loss in brain in congenital ornithine transcarbamylase deficiency. Neuroscience Letters. 178(1). 63–65. 34 indexed citations
8.
Ratnakumari, L., Ijaz A. Qureshi, & Roger F. Butterworth. (1994). Regional amino acid neurotransmitter changes in brains of spf/Y mice with congenital ornithine transcarbamylase deficiency. Metabolic Brain Disease. 9(1). 43–51. 40 indexed citations
9.
Qureshi, Insaf Ahmed, L. Ratnakumari, Adrianna Michalak, et al.. (1993). A Profile of Cerebral and Hepatic Carnitine, Ammonia, and Energy Metabolism in a Model of Organic Aciduria: BALB/cByJ Mouse with Short-Chain Acyl-CoA Dehydrogenase Deficiency. Biochemical Medicine and Metabolic Biology. 50(2). 145–158. 12 indexed citations
10.
Ratnakumari, L. & Ch.R.K. Murthy. (1993). Response of rat cerebral glycolytic enzymes to hyperammonemic states. Neuroscience Letters. 161(1). 37–40. 23 indexed citations
11.
Ratnakumari, L., Insaf Ahmed Qureshi, & Roger F. Butterworth. (1993). Effect of l-carnitine on cerebral and hepatic energy metabolites in congenitally hyperammonemic sparse-fur mice and its role during benzoate therapy. Metabolism. 42(8). 1039–1046. 28 indexed citations
12.
Ratnakumari, L., Ijaz A. Qureshi, & Roger F. Butterworth. (1993). Effect of sodium benzoate on cerebral and hepatic energy metabolites in spf mice with congenital hyperammonemia. Biochemical Pharmacology. 45(1). 137–146. 20 indexed citations
13.
Ratnakumari, L., Ijaz A. Qureshi, & Roger F. Butterworth. (1992). Effects of congenital hyperammonemia on the cerebral and hepatic levels of the intermediates of energy metabolism in spf mice. Biochemical and Biophysical Research Communications. 184(2). 746–751. 61 indexed citations
14.
Ratnakumari, L. & Ch.R.K. Murthy. (1992). In vitro and in vivo effects of ammonia on glucose metabolism in the astrocytes of rat cerebral cortex. Neuroscience Letters. 148(1-2). 85–88. 7 indexed citations
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Ratnakumari, L., et al.. (1986). Acute effects of ammonia on the enzymes of citric acid cycle in rat brain. Neurochemistry International. 8(1). 115–120. 25 indexed citations
18.
Ratnakumari, L., et al.. (1985). Cerebral citric acid cycle enzymes in methionine sulfoximine toxicity. Journal of Neuroscience Research. 14(4). 449–459. 11 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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