S. P. Kalra

6.8k citations

93 papers · 5.7k indexed · 2 hit papers · h-index 43

Endocrine and Autonomic Systems top 0.1%
Cellular and Molecular Neuroscience top 0.5%
Reproductive Medicine top 0.2%
Physiology top 2%
Nutrition and Dietetics top 0.5%

Co-authors: Pushpa S. Kalra William R. Crowley Marie‐Christine Dubé Anita Sahu Christopher P. Phelps A. Sahu Bin Xu J. J. Bonavera
Topics: Hypothalamic control of reproductive hormones (51 papers)Regulation of Appetite and Obesity (44 papers)Neuropeptides and Animal Physiology (40 papers)
Cited by: Endocrine and Autonomic Systems Reproductive Medicine Behavioral Neuroscience
Journals: Proceedings of the National Academy of Sciences Journal of Clinical Investigation Endocrine Reviews
Partner nations: United States Czechia India

In The Last Decade

S. P. Kalra

93 papers receiving 5.6k 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.

Interacting Appetite-Regulating Pathways in the Hypothalamic Regulation of Body Weight

1999 775 citations S. P. Kalra profile →
Neuropeptide Y secretion increases in the paraventricular nucleus in association with increased appetite for food.

1991 581 citations S. P. Kalra, Marie‐Christine Dubé et al. profile →

Peers

Countries citing papers authored by S. P. Kalra

Since Specialization

Citations

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

Fields of papers citing papers by S. P. Kalra

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. P. Kalra. 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 S. P. Kalra. The network helps show where S. P. Kalra may publish in the future.

Co-authorship network of co-authors of S. P. Kalra

This figure shows the co-authorship network connecting the top 25 collaborators of S. P. Kalra. A scholar is included among the top collaborators of S. P. Kalra 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 S. P. Kalra. S. P. Kalra 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

#	Work	Indexed citations
1	Effects of increased hypothalamic leptin gene expression on ovariectomy-induced bone loss in rats 2011 ·Peptides ·Melanie Jackson,Urszula T. Iwaniec,Russell T. Turner,Thomas J. Wronski,S. P. Kalra	13
2	Role of Leptin in Orexigenic Neuropeptide Expression During Lactation in Rats 2004 ·Journal of Neuroendocrinology ·William R. Crowley,(unknown),Rita Torto,S. P. Kalra	26
3	NPY and cohorts in regulating appetite, obesity and metabolic syndrome: beneficial effects of gene therapy 2004 ·Neuropeptides ·S. P. Kalra,Pushpa S. Kalra	140
4	Central leptin gene therapy suppresses body weight gain, adiposity and serum insulin without affecting food consumption in normal rats: a long-term study 2001 ·Regulatory Peptides ·Harveen Dhillon,S. P. Kalra,Victor Prima,Sergei Zolotukhin,Philip J. Scarpace,Lyle L. Moldawer,Nicholas Muzyczka,Pushpa S. Kalra	87
5	Long-term differential modulation of genes encoding orexigenic and anorexigenic peptides by leptin delivered by rAAV vector in ob/ob mice 2000 ·Regulatory Peptides ·Harveen Dhillon,Yan Ge,Rebecca M. Minter,Victor Prima,Lyle L. Moldawer,Nicholas Muzyczka,Sergei Zolotukhin,Pushpa S. Kalra,S. P. Kalra	47
6	Daily Changes in Hypothalamic Gene Expression of Neuropeptide Y, Galanin, Proopiomelanocortin, and Adipocyte Leptin Gene Expression and Secretion: Effects of Food Restriction¹ 1999 ·Endocrinology ·Bin Xu,Pushpa S. Kalra,William G. Farmerie,S. P. Kalra	129
7	The anti-gonadotropic effects of cytokines: the role of neuropeptides 1998 ·Domestic Animal Endocrinology ·Pushpa S. Kalra,(unknown),Bin Xu,Mukul R. Jain,S. P. Kalra	56
8	Increased appetite augments hypothalamic NPY Y1 receptor gene expression: effects of anorexigenic ciliary neurotropic factor 1998 ·Regulatory Peptides ·Bin Xu,Pushpa S. Kalra,Lyle L. Moldawer,S. P. Kalra	53
9	An interactive physiological role of neuropeptide Y and galanin in pulsatile pituitary luteinizing hormone secretion. 1996 ·Endocrinology ·Bin Xu,Shuye Pu,Pushpa S. Kalra,James F. Hyde,William R. Crowley,S. P. Kalra	36
10	Is an increase of nitric oxide efflux in the medial preoptic area coupled to the preovulatory GnRH surge 1996 ·The Society for Neuroscience Abstracts ·(unknown),Pushpa S. Kalra,S. P. Kalra	1
11	The Hypothalamic Peptides, β‐Endorphin, Neuropeptide K and Interleukin‐1β, and the Opiate Morphine, Enhance the Excitatory Amino Acid‐Induced LH Release under the Influence of Gonadal Steroids 1994 ·Journal of Neuroendocrinology ·J. J. Bonavera,A. Sahu,S. P. Kalra,Pushpa S. Kalra	12
12	Evidence that luteinizing hormone suppression in response to inhibitory neuropeptides, beta-endorphin, interleukin-1 beta, and neuropeptide-K, may involve excitatory amino acids. 1993 ·Endocrinology ·J. J. Bonavera,S. P. Kalra,Pushpa S. Kalra	29
13	In vivo pulsatile LHRH release into the anterior pituitary of the male rat: effects of castration 1992 ·Brain Research ·Christopher P. Phelps,S. P. Kalra,Pushpa S. Kalra	13
14	The effect of prior surgical disconnection of the anterior mediobasal hypothalamus on LHRH release in vitro 1990 ·Brain Research ·Christopher P. Phelps,Pushpa S. Kalra,S. P. Kalra	3
15	A Decrease in Opioid Tone Amplifies the Luteinizing Hormone Surge in Estrogen-Treated Ovariectomized Rats: Comparisons with Progesterone Effects* 1990 ·Endocrinology ·C. Masotto,A. Sahu,Marie‐Christine Dubé,S. P. Kalra	19
16	Evidence That a Decrease in Opioid Tone on Proestrus Changes the Episodic Pattern of Luteinizing Hormone (LH) Secretion: Implications in the Preovulatory LH Hypersecretion* 1988 ·Endocrinology ·L. G. Allen,(unknown),Donald Caton,S. P. Kalra	35
17	The Steroid-Neuropeptide Connection in the Control of LHRH Secretion 1987 ·Advances in experimental medicine and biology ·S. P. Kalra,(unknown),Anita Sahu,L. G. Allen,William R. Crowley	9
18	Diurnal Fluctuations in Methionine-Enkephalin Levels in the Hypothalamus and Preoptic Area of the Male Rat: Effects of Pinealectomy 1982 ·Neuroendocrinology ·M. S. A. Kumar,(unknown),(unknown),(unknown),Pushpa S. Kalra,S. P. Kalra	63
19	Distribution of Luteinizing Hormone Releasing Hormone in the Canine Hypothalamus: Effect of Castration and Exogenous Gonadal Steroids 1980 ·American Journal of Veterinary Research ·M. S. A. Kumar,(unknown),S. P. Kalra	16
20	Suppression of serum LH-RH and LH in rats by an inhibitor of norepinephrine synthesis 1977 ·Reproduction ·S. P. Kalra	6

About S. P. Kalra

S. P. Kalra is a scholar working on Endocrine and Autonomic Systems, Reproductive Medicine and Behavioral Neuroscience, having authored 93 papers that have together received 5.7k indexed citations. Recurring topics across this work include Hypothalamic control of reproductive hormones (51 papers), Regulation of Appetite and Obesity (44 papers) and Neuropeptides and Animal Physiology (40 papers). The work is most often cited by research in Endocrine and Autonomic Systems (3.3k citations), Reproductive Medicine (2.0k citations) and Behavioral Neuroscience (577 citations). S. P. Kalra has collaborated with scholars based in United States, Czechia and India. Frequent co-authors include Pushpa S. Kalra, William R. Crowley, Marie‐Christine Dubé, Anita Sahu, Christopher P. Phelps, A. Sahu, Bin Xu, J. J. Bonavera, Shuye Pu and Samuel M. McCann. Their work appears in journals such as Proceedings of the National Academy of Sciences, Journal of Clinical Investigation and Endocrine Reviews.

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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