Abstract：
BACKGROUND:In smoking cessation trials, placebo response rates are reported to be rather low, and they are lowest when compared to the placebo response rates of treatment of other addictions. We hypothesized that high placebo response rates in trials outside of cessation treatment may predict low participation of smokers, and that non-smoking may be a behavioral marker of the placebo response. METHODS:We re-analyzed raw data from a randomized controlled drug trial in functional dyspepsia (n=315) for the number of smokers and non-smokers in both treatment arms (drug, placebo) and varied the responder definition in a sensitivity analysis. RESULTS:An equal number of smokers and non-smokers were assigned to drug and placebo. With the pre-defined responder definition (40% symptom improvement of a patient-reported outcome scale), 3% of placebo responders were smokers, but around 20% of patients among the placebo non-responder, and the drug responders and non-responders. With a more restrictive response definition (50% improvement) none of the placebo responders (n=29) was a smoker while the percentage of smokers remained similar in all other groups (p<.001). Age and gender did not affect this distribution. CONCLUSION:Non-smoking behavior may be association with higher placebo response rates and may indicate a biomarker for reward sensitivity of the nicotine-dopamine pathway. Common genotypes may underlie both behaviors.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Enck P,Weimer K,Klosterhalfen Sdoi
10.1016/j.mehy.2014.06.012subject
Has Abstractpub_date
2014-09-01 00:00:00pages
355-8issue
3eissn
0306-9877issn
1532-2777pii
S0306-9877(14)00247-3journal_volume
83pub_type
杂志文章abstract：:The epidemiologic findings of Kaposi's sarcoma (KS) among patients with the acquired immunodeficiency syndrome (AIDS) suggest that human immunodeficiency virus (HIV) infection is insufficient for the development of KS. It was speculated that another sexually transmitted infection is responsible for the markedly increa...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(91)90051-y
更新日期：1991-04-01 00:00:00
abstract：:The etiology of focal distribution of atherosclerotic lesions has received much attention for many years. Current theories focus on mechanical factors such as low endothelial shear stress as an initiating factor for atherosclerosis formation. However, some evidences revealed that it could not be initiator of endotheli...
journal_title：Medical hypotheses
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doi：10.1016/j.mehy.2008.11.049
更新日期：2009-12-01 00:00:00
abstract：:The precise role of erythrophagocytosis in sickle cell disease is not known. Using hematological data from three studies and 791 subjects comprising of eight epidemiological groups, we found a strong statistical support for the hypothesis that erythrophagocytosis is increased in sickle cell trait, that neutrophils and...
journal_title：Medical hypotheses
pub_type： 杂志文章
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更新日期：2007-01-01 00:00:00
abstract：:Focal segmental glomerulosclerosis (FSGS) is a common cause of nephrotic disease in adults, and it is thought to be increasing in incidence. FSGS is often difficult to treat and even has a high propensity to relapse after transplant. Indeed, this suggests that there might be some circulating factor responsible for pro...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1438
更新日期：2001-12-01 00:00:00
abstract：:The N-methyl-d-aspartate receptor (NMDAR) encephalitis is the most common form of autoimmune encephalitis. Antibodies against the GluN1 subunit of the NMDAR showed in primary cultures of rat hippocampal neurons and in a mouse model pathogenic effects including cross-linking and internalization of the target receptors ...
journal_title：Medical hypotheses
pub_type： 杂志文章
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更新日期：2020-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
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更新日期：2015-07-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.mehy.2016.08.011
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pub_type： 杂志文章
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更新日期：2017-07-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1389
更新日期：2002-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.04.020
更新日期：2008-09-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.01.031
更新日期：2008-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.06.002
更新日期：2012-09-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(84)90070-7
更新日期：1984-04-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(79)90009-4
更新日期：1979-11-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.12.020
更新日期：2019-02-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109420
更新日期：2020-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.12.040
更新日期：2013-04-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(81)90124-9
更新日期：1981-11-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/0306-9877(94)90152-x
更新日期：1994-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(91)90159-v
更新日期：1991-09-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1364
更新日期：2001-10-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90014-4
更新日期：1987-07-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(86)90128-3
更新日期：1986-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109437
更新日期：2020-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章,评审
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更新日期：1987-07-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109279
更新日期：2019-09-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(89)90047-9
更新日期：1989-03-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2003.10.001
更新日期：2004-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.02.010
更新日期：2011-05-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 历史文章,杂志文章
doi：10.1016/j.mehy.2010.01.048
更新日期：2010-07-01 00:00:00
