Cited by 265Nicotinic Acetylcholine Receptors StudySmoking Behavior and CessationNeuroscience and Neuropharmacology Research

Time course study of the effects of chronic nicotine infusion on drug response and brain receptors

Marks, M J, Stitzel, J A, Collins, A C·1985·The Journal of Pharmacology and Experimental Therapeutics

Abstract

The experiments reported here examined the time course of the development and loss of tolerance to nicotine as well as the time course for the up-regulation and return to basal levels of brain nicotinic receptors. Nicotine was administered by continuous i.v. infusion through cannulae implanted in the right jugular veins of DBA mice. Tolerance to the effects of nicotine on Y-maze activity and rears, body temperature and heart rate was seen accompanying the infusion of 4 mg/kg/hr of nicotine. Maximal tolerance was obtained in 4 days and was paralleled by increases in the number of brain nicotine binding sites. The binding of alpha-bungarotoxin was also increased by chronic nicotine treatment but increases in binding preceded the development of detectable tolerance to the challenge dose of nicotine. Chronic nicotine treatment had no effect on quinuclidinyl benzilate binding. Tolerance to the effects of nicotine was lost at different rates for the various tests in that base-line response was attained for the Y-maze activity and rearings test in 8 days, whereas 12 to 16 days were required to regain control response for the body temperature test. Tolerance for the heart rate test persisted throughout the 20-day withdrawal period. Brain nicotine binding sites had returned to control levels by 8 days after treatment whereas the alpha-bungarotoxin binding sites were at control levels at the earliest time of postinfusion testing (4 days). Brain quinuclidinyl benzilate binding sites were unaffected by nicotine treatment and did not change during the withdrawal period. The changes in nicotine binding in the various brain regions during the onset and offset experiments were virtually identical. These changes in binding correlated highly with the acquisition and loss of tolerance to the effects of nicotine on the Y-maze locomotor activity and body temperature tests. The correlations between changes in nicotine binding and the Y-maze rearings and the heart rate tests were lower but some association is suggested. Although changes in nicotine binding may explain some of the tolerance observed, other explanations for tolerance must be sought as well.

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Crossref · 10.1016/s0022-3565(25)24213-6

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Authors
Marks, M. J., Stitzel, J. A., & Collins, A. C.
Venue
The Journal of Pharmacology and Experimental Therapeutics
Publisher
Elsevier BV
Published
1985-12
Volume
235
Issue
3
Pages
619-628
ISSN
0022-3565 (ISSN-L)
OpenAlex
W2155400043
Cited by
265
References
0
Citations by year
2025: 1 · 2022: 2 · 2020: 3 · 2019: 4 · 2018: 2 · 2017: 2 · 2016: 8 · 2015: 11 · 2014: 9 · 2013: 7 · 2012: 6
FWCI
3.18
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmacology and Experimental Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed
Funders
  • National Institute on Drug Abuse (DA 03194)
  • National Center for Research Resources (RR07013-19)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
nicotine tolerance, receptor down-regulation, alpha-bungarotoxin binding, quinuclidinyl benzilate binding, nicotine withdrawal, locomotor activity, heart rate, body temperature, DBA mice
MeSH terms
Animals, Body Temperature, Brain Chemistry, Bungarotoxins, Drug Tolerance, Female, Mice, Inbred DBA, Motor Activity, Nicotine, Receptors, Nicotinic, Substance Withdrawal Syndrome, Time Factors, Mice

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