Caffeine and Anxiety-Like Behavior

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Handbook of Substance Misuse and Addictions

Abstract

Caffeine is the most frequently consumed psychoactive substance in the world. Despite its safety, caffeine consumption has been linked to negative consequences on mood. Here, we describe the effects of caffeine consumption on anxiety-related behaviors. These effects are dependent of several factors such as tolerance, genetic polymorphism, mental health status, sex, and age. Special attention will be paid to the effects of caffeine during pregnancy and adolescence. This chapter also addresses mechanisms associated with the effects of caffeine on anxiety, which are, at least in part, mediated by adenosine receptors. Polymorphisms in genes controlling the expression of these receptors have been implicated in susceptibility to anxiety caused by caffeine consumption. Caffeine use and anxiety in patients with mental disorders will also be addressed. The issues that have already been identified regarding caffeine effects on anxiety recommends moderation in its consumption and should guide policy formulation by drug/food regulatory agencies.

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Abbreviations

A1R:

Adenosine receptor A1

A2R:

Adenosine receptor A2

BDNF:

Brain-derived neurotrophic factor

BNST:

Bed nucleus of stria terminalis

CPA:

N6-Cyclopentyladenosine

CREB:

cAMP-response element-binding protein

DASS-21:

Self-reported Depression Anxiety Stress Scale

ED:

Energy drinks

fMRI:

Functional magnetic resonance imaging

GABA:

γ-aminobutyric acid

GAD-7:

Generalized Anxiety Disorder-7 scale

GFP:

Green fluorescent protein

HPA:

Hypothalamic–pituitary–adrenal

MC4:

Melanocortin-4

MEG:

Source-localized magnetoencephalography

NPSR:

Neuropeptide S receptor

PET:

Positron emission tomography

POMS:

Profile of Mood States questionnaire

PVN:

Paraventricular hypothalamic nucleus

α-MSH:

Alpha-melanocyte stimulating hormone

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Correspondence to Anderson Ribeiro-Carvalho .

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Ribeiro-Carvalho, A., Dutra-Tavares, A.C., Filgueiras, C.C., Manhães, A.C., Abreu-Villaça, Y. (2022). Caffeine and Anxiety-Like Behavior. In: Patel, V.B., Preedy, V.R. (eds) Handbook of Substance Misuse and Addictions. Springer, Cham. https://doi.org/10.1007/978-3-030-92392-1_80

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