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16.06.2019 | CLINICAL

It is not just the drugs that matter: the nocebo effect

verfasst von: Marek Z. Wojtukiewicz, Barbara Politynska, Piotr Skalij, Piotr Tokajuk, Anna M. Wojtukiewicz, Kenneth V. Honn

Erschienen in: Cancer and Metastasis Reviews | Ausgabe 1-2/2019

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Abstract

The role of psychological mechanisms in the treatment process cannot be underestimated, the well-known placebo effect unquestionably being a factor in treatment. However, there is also a dark side to the impact of mental processes on health/illness as exemplified by the nocebo effect. This phenomenon includes the emergence or exacerbation of negative symptoms associated with the therapy, but arising as a result of the patient’s expectations, rather than being an actual complication of treatment. The exact biological mechanisms of this process are not known, but cholecystokinergic and dopaminergic systems, changes in the HPA axis, and the endogenous secretion of opioids are thought to be involved. The nocebo effect can affect a significant proportion of people undergoing treatment, including cancer patients, leading in some cases to the cessation of potentially effective therapy, because of adverse effects that are not actually part of the biological effect of treatment. In extreme cases, as a result of suggestions and expectations, a paradoxical effect, biologically opposite to the mechanism of the action of the drug, may occur. In addition, the nocebo effect may significantly interfere with the results of clinical trials, being the cause of a significant proportion of complications reported. Knowledge of the phenomenon is thus necessary in order to facilitate its minimalization and thus improve the quality of life of patients and the effectiveness of treatment.

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Titel: It is not just the drugs that matter: the nocebo effect
verfasst von: Marek Z. Wojtukiewicz
Barbara Politynska
Piotr Skalij
Piotr Tokajuk
Anna M. Wojtukiewicz
Kenneth V. Honn
Publikationsdatum: 16.06.2019
Verlag: Springer US
Erschienen in: Cancer and Metastasis Reviews / Ausgabe 1-2/2019
Print ISSN: 0167-7659
Elektronische ISSN: 1573-7233
DOI: https://doi.org/10.1007/s10555-019-09800-w

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