George B. Karkanias

4.3k total citations · 2 hit papers
26 papers, 3.5k citations indexed

About

George B. Karkanias is a scholar working on Endocrine and Autonomic Systems, Reproductive Medicine and Nutrition and Dietetics. According to data from OpenAlex, George B. Karkanias has authored 26 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Endocrine and Autonomic Systems, 11 papers in Reproductive Medicine and 8 papers in Nutrition and Dietetics. Recurrent topics in George B. Karkanias's work include Regulation of Appetite and Obesity (12 papers), Hypothalamic control of reproductive hormones (11 papers) and Biochemical Analysis and Sensing Techniques (8 papers). George B. Karkanias is often cited by papers focused on Regulation of Appetite and Obesity (12 papers), Hypothalamic control of reproductive hormones (11 papers) and Biochemical Analysis and Sensing Techniques (8 papers). George B. Karkanias collaborates with scholars based in United States and China. George B. Karkanias's co-authors include Silvana Obici, Luciano Rossetti, Zhaohui Feng, Bei B. Zhang, Denis G. Baskin, Anne M. Etgen, Daniel T. Stein, Lisen Liu, José Carlos Roldán Morales and Nir Barzilai and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Clinical Investigation and Nature Medicine.

In The Last Decade

George B. Karkanias

23 papers receiving 3.5k citations

Hit Papers

align trajectories

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.

Hypothalamic insulin signaling is required for inhibition of glucose production

2002 697 citations Silvana Obici, Bei B. Zhang et al. Nature Medicine profile →
Central Administration of Oleic Acid Inhibits Glucose Production and Food Intake

2002 506 citations Silvana Obici, Zhaohui Feng et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
George B. Karkanias United States	19	2.3k	1.5k	1.0k	889	712	26	3.5k
Leona Plum Germany	21	1.9k 0.8×	1.6k 1.0×	758 0.7×	699 0.8×	836 1.2×	24	3.4k
Brigitte Hampel Germany	19	1.9k 0.8×	1.4k 0.9×	807 0.8×	556 0.6×	721 1.0×	21	3.4k
Daisuke Kohno Japan	26	2.1k 0.9×	1.1k 0.7×	1.1k 1.0×	439 0.5×	494 0.7×	47	3.1k
Eduardo A. Nillni United States	35	2.3k 1.0×	1.5k 1.0×	1.1k 1.1×	274 0.3×	636 0.9×	73	4.0k
Eleftheria Maratos‐Flier United States	13	2.3k 1.0×	1.1k 0.7×	1.3k 1.3×	519 0.6×	524 0.7×	15	3.3k
Kate L. J. Ellacott United Kingdom	29	1.9k 0.8×	1.3k 0.8×	997 1.0×	281 0.3×	477 0.7×	47	3.1k
D.P. Figlewicz United States	24	1.7k 0.7×	1.1k 0.7×	842 0.8×	404 0.5×	486 0.7×	40	2.8k
Miles E. Matsen United States	21	1.5k 0.7×	1.2k 0.8×	460 0.4×	517 0.6×	549 0.8×	31	2.9k
A. Christine Könner Germany	13	1.3k 0.6×	1.2k 0.8×	467 0.5×	453 0.5×	540 0.8×	14	2.6k
Jennifer A. Gillette United States	6	1.1k 0.5×	773 0.5×	489 0.5×	374 0.4×	486 0.7×	7	2.1k

Countries citing papers authored by George B. Karkanias

Since Specialization

Citations

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

Fields of papers citing papers by George B. Karkanias

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by George B. Karkanias. 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 George B. Karkanias. The network helps show where George B. Karkanias may publish in the future.

Co-authorship network of co-authors of George B. Karkanias

This figure shows the co-authorship network connecting the top 25 collaborators of George B. Karkanias. A scholar is included among the top collaborators of George B. Karkanias 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 George B. Karkanias. George B. Karkanias 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

McGuire, Joseph, George B. Karkanias, Richard M. Bittman, et al.. (2025). Determining Clinically Meaningful Improvement in Children and Adolescents with Tourette Syndrome Receiving Pharmacotherapy. Journal of Child and Adolescent Psychopharmacology. 35(8). 447–453.

VanPatten, Sonya, George B. Karkanias, Luciano Rossetti, & David E. Cohen. (2004). Intracerebroventricular leptin regulates hepatic cholesterol metabolism. Biochemical Journal. 379(2). 229–233. 38 indexed citations

Kovács, Péter, José Carlos Roldán Morales, & George B. Karkanias. (2003). Central Insulin Administration Maintains Reproductive Behavior in Diabetic Female Rats. Neuroendocrinology. 78(2). 90–95. 22 indexed citations

Muzumdar, Radhika, Xiaohui Ma, Xiaoman Yang, et al.. (2003). Physiologic effect of leptin on insulin secretion is mediated mainly through central mechanisms. The FASEB Journal. 17(9). 1130–1132. 54 indexed citations

Obici, Silvana, Bei B. Zhang, George B. Karkanias, & Luciano Rossetti. (2002). Hypothalamic insulin signaling is required for inhibition of glucose production. Nature Medicine. 8(12). 1376–1382. 697 indexed citations breakdown →

Kovács, Péter, Albert F. Parlow, & George B. Karkanias. (2002). Effect of Centrally Administered Insulin on Gonadotropin-Releasing Hormone Neuron Activity and Luteinizing Hormone Surge in the Diabetic Female Rat. Neuroendocrinology. 76(6). 357–365. 40 indexed citations

Obici, Silvana, et al.. (2002). Decreasing hypothalamic insulin receptors causes hyperphagia and insulin resistance in rats. Nature Neuroscience. 5(6). 566–572. 493 indexed citations

Obici, Silvana, et al.. (2002). Hypothalamic insulin signaling is required for inhibition of glucose production. Nature Medicine. 8(12). 1376–1382. 89 indexed citations

Obici, Silvana, et al.. (2002). Decreasing hypothalamic insulin receptors causes hyperphagia and insulin resistance in rats. Nature Neuroscience. 5(6). 566–572. 488 indexed citations

10.

Obici, Silvana, et al.. (2001). Central melanocortin receptors regulate insulin action. Journal of Clinical Investigation. 108(7). 1079–1085. 296 indexed citations

11.

Karkanias, George B., et al.. (2000). The effect of diabetes on α2-adrenergic receptor activity in the reproductive centers of the female rat brain. American Journal of Obstetrics and Gynecology. 182(5). 1096–1098. 1 indexed citations

12.

Karkanias, George B., et al.. (1998). Effects of Diabetes and Estradiol on Norepinephrine Release in Female Rat Hypothalamus, Preoptic Area and Cortex. Neuroendocrinology. 68(1). 30–36. 12 indexed citations

13.

Karkanias, George B., José Carlos Roldán Morales, Meredith Hawkins, et al.. (1998). Intracerebroventricular Leptin Regulates Hepatic but Not Peripheral Glucose Fluxes. Journal of Biological Chemistry. 273(47). 31160–31167. 190 indexed citations

14.

Karkanias, George B., José Carlos Roldán Morales, & Changsheng Li. (1997). Deficits in Reproductive Behavior in Diabetic Female Rats Are Due to Hypoinsulinemia Rather Than Hyperglycemia. Hormones and Behavior. 32(1). 19–29. 19 indexed citations

15.

Karkanias, George B., et al.. (1997). Estradiol reduction of α2-adrenoceptor binding in female rat cortex is correlated with decreases in α2A/D-adrenoceptor messenger RNA. Neuroscience. 81(3). 593–597. 40 indexed citations

16.

Karkanias, George B., Michael Ansonoff, & Anne M. Etgen. (1996). Estradiol Regulation of α_1b‐Adrenoceptor mRNA in Female Rat Hypothalamus‐Preoptic Area. Journal of Neuroendocrinology. 8(6). 449–455. 63 indexed citations

17.

Karkanias, George B., Nicolas Petitti, & Anne M. Etgen. (1995). Progesterone attenuation of alpha 1-adrenergic receptor stimulation of phosphoinositol hydrolysis in hypothalamus of estrogen-primed female rats.. Endocrinology. 136(5). 1993–1999. 17 indexed citations

18.

Etgen, Anne M. & George B. Karkanias. (1994). Estrogen regulation of noradrenergic signaling in the hypothalamus. Psychoneuroendocrinology. 19(5-7). 603–610. 59 indexed citations

19.

Karkanias, George B. & Anne M. Etgen. (1994). Estradiol reduction of the agonist high affinity form of the alpha 2-adrenoceptor in the hypothalamus of female rats: identification as the alpha 2D subtype.. Molecular Pharmacology. 45(3). 509–516. 33 indexed citations

20.

Etgen, Anne M. & George B. Karkanias. (1990). Estradiol regulates the number of α1 but not β or α2 noradrenergic receptors in hypothalamus of female rats. Neurochemistry International. 16(1). 1–9. 22 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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