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Cigarette Smoking Behavior in Conjoined Twins

Published online by Cambridge University Press:  01 August 2014

Murray E. Jarvik ,
Ellen R. Gritz  and
Jed E. Rose
Murray E. Jarvik*
Affiliation:
Veterans Administration Medical Center, West Los Angeles, Brentwood Division and Department of Psychiatry and Biobehavioral Sciences, The Neuropsychiatric Institute, School of Medicine, University of California, Los Angeles
Ellen R. Gritz
Affiliation:
Veterans Administration Medical Center, West Los Angeles, Brentwood Division and Department of Psychiatry and Biobehavioral Sciences, The Neuropsychiatric Institute, School of Medicine, University of California, Los Angeles
Jed E. Rose
Affiliation:
Veterans Administration Medical Center, West Los Angeles, Brentwood Division and Department of Psychiatry and Biobehavioral Sciences, The Neuropsychiatric Institute, School of Medicine, University of California, Los Angeles
*
Psychopharmacology Unit, Veterans Administration Medical Center Brentwood, (691/B151D), Los Angeles, CA 90073

Abstract

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A study of cigarette smoking was undertaken in a pair of craniopagus twins to determine how a transfer of products of smoking is occurring between the twins. Alternately and independently, one twin smoked a nicotine-free cigarette, then the second twin smoked a nicotine-containing cigarette. The procedure enabled the investigators to study the migration of nicotine and carbon monoxide from one twin to the other. Salivary determination provided a noninvasive method of measuring cross circulation in conjoined twins. Measurements of salivary nicotine, however, indicated that, although the nicotine levels rose following smoking, there was relatively little transfer from one twin to the other through the circulation.

Keywords

Conjoined twinsCigarette smokingSalivaNicotineCross circulation
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 32 , Issue 3-4 , July 1983 , pp. 239 - 243
Copyright
Copyright © The International Society for Twin Studies 1983

References

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