Influences of ethanol ingestion on olfactory function in humans

Patel, Suketu J.; Bollhoefer, Andrew D.; Doty, Richard L.

doi:10.1007/s00213-003-1612-x

Cited by 19 publications

(7 citation statements)

References 35 publications

(35 reference statements)

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“…For instance, Engen [32] have reported that subjects with ethanol-intoxicated blood levels tend to show enhanced performance for odor detection of guaiacol. However, in another study conducted by Patel et al [33], acute alcohol ingestion markedly decreased olfactory threshold sensitivity to ethanol, but not to phenyl ethyl alcohol. Thus, the selection of odorant and degree of olfactory dysfunction in subjects should be considered in future studies.…”

Section: Discussionmentioning

confidence: 84%

Does Improved Attention Induced by Caffeine Intake Affect Olfactory Function?

Han

Choi

Jeong

et al. 2020

Clin Exp Otorhinolaryngol

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Objectives. Past several studies have proven that caffeine facilitates attentional enhancement by acting as an adenosine antagonist once it is absorbed by the body, resulting in improved psycho-behavioral function. Modern clinical olfactory function tests are usually assessed by psychophysical tests but due to a paucity of data, the influence of enhanced attention by caffeine on olfactory function still remains unclear. The objective of this study was to compare results of cognitive function (attention) and olfactory function before and after caffeine administration in order to analyze effects of caffeine on olfactory function in normosmic subjects.Methods. This study enrolled 49 participants of Konkuk University Hospital with a mean age of 27.7 years who had patent olfactory clefts and no olfactory dysfunction from May 2015 to February 2016. Subjects were restrained from caffeine 10 hours before the test. On day 1, participant’s subjective olfactory function was evaluated before and after uptake of either caffeinated or decaffeinated coffee using visual analog scale (VAS) score, minimum cross-sectional area (MCA) measured by acoustic rhinometry, and the Korean version of Sniffin’ Stick II (KVSS II). Evaluation of participant’s attentional degree was measured by d2 test. On day 2, the same procedure was carried out with counterpart substance. The type of coffee initially administrated was randomly selected.Results. After administration, caffeinated coffee resulted in significant attentional enhancement than decaffeinated coffee. Results of d2 test showed statistically significant differences in the parameters of total number of errors and omission errors. In both the caffeinated and decaffeinated groups, the patients showed slight increase in VAS score and nasal cavity area; however, the difference was not statistically significant. Also, caffeinated coffee intake compared to decaffeinated coffee intake showed no significant relevance to olfactory function.Conclusion. Caffeine may significantly improve attentional congnitive function, while not have acute effects on olfactory function.

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Section: Discussionmentioning

confidence: 84%

Does Improved Attention Induced by Caffeine Intake Affect Olfactory Function?

Han

Choi

Jeong

et al. 2020

Clin Exp Otorhinolaryngol

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“…This, however, was a between-subjects design, susceptible to non-alcohol related group differences. In contrast, other studies using within subject designs reported either declined [30][31][32], or unchanged [31] olfactory performance following alcohol consumption. Here we set out to test the hypothesis that alcohol may improve olfactory performance in three separate experimental designs.…”

Section: Introductionmentioning

confidence: 72%

Disinhibition of olfaction: Human olfactory performance improves following low levels of alcohol

Endevelt‐Shapira

Shushan

Roth

et al. 2014

Behavioural Brain Research

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“…Furthermore, demographic factors such as gender and age, or individual habits like alcohol consumption or cigarette smoking are significantly related to olfactory function (Doty 2003;Duncan and Smith 1995;Patel et al 2004;Schiffman 1997), but their relevance was overlooked in some epidemiological studies in workers. Valid information on interfering factors and on reference values for the not exposed group is also necessary.…”

Section: Discussionmentioning

confidence: 98%

Olfactory toxicity: long-term effects of occupational exposures

Gobba

2006

Int Arch Occup Environ Health

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To date, knowledge of the effect of chronic occupational exposure to industrial chemicals on olfactory function is largely incomplete, but supports the hypothesis that olfactory neuroepithelium is susceptible to environmental exposures to chemicals. Occupational-related olfactory impairment is usually sub-clinical, and can be only detected using adequate quantitative olfactory function testing procedures. Available data show the need for further good quality research in this field.

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Influences of ethanol ingestion on olfactory function in humans

Abstract: Alcohol ingestion markedly and selectively alters olfactory sensitivity to ethanol, perhaps via habituation processes, and may subtly influence some measures of odor discrimination.

Cited by 19 publications

References 35 publications

Does Improved Attention Induced by Caffeine Intake Affect Olfactory Function?

Does Improved Attention Induced by Caffeine Intake Affect Olfactory Function?

Disinhibition of olfaction: Human olfactory performance improves following low levels of alcohol

Olfactory toxicity: long-term effects of occupational exposures

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