Evidence map›Paper›PMID 31603225›Full record

ArticleNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2020

Evaluation of Sex Differences in the Elasticity of Demand for Nicotine and Food in Rats.

Ranjithkumar Chellian, Ryann Wilson, Michaela Polmann, Parker Knight, Azin Behnood-Rod, Adriaan W Bruijnzeel

Abstract readEvaluation Study
In one paragraph

Article in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Rewarding Effects of Nicotine Self-administration Increase Over Time in Male and Female Rats.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Advancing Our Understanding of Tobacco Use in Vulnerable Populations.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
    Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ranjithkumar ChellianDepartment of Psychiatry, University of Florida, Gainesville, FL.
Ryann WilsonDepartment of Psychiatry, University of Florida, Gainesville, FL.
Michaela PolmannDepartment of Psychiatry, University of Florida, Gainesville, FL.
Parker KnightDepartment of Psychiatry, University of Florida, Gainesville, FL.
Azin Behnood-RodDepartment of Psychiatry, University of Florida, Gainesville, FL.
Adriaan W BruijnzeelDepartment of Psychiatry, University of Florida, Gainesville, FL.

Funding

Tobacco: relationship between reduced nicotine content and reinforcement in ratsR01DA042530 · NIDA · UNIVERSITY OF FLORIDA · PI BRUIJNZEEL, ADRIAAN WILLEM · 2016 to 2018
$1.1M
NIDA NIH HHS R01 DA042530
6 · The paper itself

Abstract

introductionAnimal studies can inform policy regarding nicotine levels in tobacco products and e-cigarette solutions. Increasing the price of nicotine-containing products decreases their use, but it is unknown how the relationship between price and consumption is affected by both sex and nicotine dose.

methodsA behavioral economics procedure was used to determine the demand elasticity for nicotine in male and female rats. Demand elasticity describes the relationship between price and consumption. A high level of elasticity indicates that consumption is relatively sensitive to increases in price. The rats self-administered a low dose (0.01 mg/kg/inf) or a standard dose (0.03 mg/kg/inf) of nicotine for 9 days under a fixed-ratio (FR) 1 schedule. Then the price (FR schedule) of nicotine was increased, and a demand analysis was conducted. A similar study was conducted with palatable food pellets.

resultsThere were no sex differences in nicotine or food intake under the FR1 schedule. However, demand for 0.03 mg/kg/inf of nicotine was more elastic in females than males. Demand for 0.01 mg/kg/inf of nicotine and food was more elastic in males than females.

conclusionsThese findings indicate that there are no differences in nicotine and food intake between males and females when the price is low. When the price of nicotine or food is increased, males maintain their old level of intake longer than females when they have access to a standard dose of nicotine, and females maintain their intake longer when they have access to a low dose of nicotine or food. IMPLICATIONS: This behavioral economics analysis indicates that there is no sex difference in nicotine intake when the price of nicotine is low. Increasing the price of nicotine decreases nicotine intake in a dose- and sex-specific manner. Males maintain their old level of intake longer when they have access to a standard dose of nicotine and females when they have access to a low dose. This has implications for tobacco regulatory policy. In a regulatory environment where only low nicotine-containing products are allowed, increasing the price of nicotine products may lead to a greater decrease in nicotine use in males than females.

Indexed as

Choice BehaviorAnimalsEconomics, BehavioralElasticityFemaleFoodMaleNicotineRatsRats, WistarSelf AdministrationSex FactorsNicotine

Identifiers

PMID31603225
PMCPMC7249924

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.