Current opinion in clinical nutrition and metabolic care · 2014
The energy balance in cancer cachexia revisited.
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de Vos-Geelen Judith, Fearon Kenneth C H, Schols Annemie M W
Аннотация
PURPOSE OF REVIEW: To review new putative mechanisms involved in the pathophysiology of a disturbed energy balance in cancer cachexia, which can lead to novel targets for clinical cachexia management. In the context of rapid developments in tumour treatment with potential systemic consequences, this article reviews recent data on energy requirements. Furthermore, we focus on new insights in brown adipose tissue (BAT) activity and reward processing in the brain in relation to the cachexia process.
RECENT FINDINGS: Nearly no new data have been published on energy requirements of cancer patients in the light of comprehensive new therapies in oncology. New developments, such as the introduction of staging with 18F-fluorodeoxyglucose PET-computed tomography scanning, led to the observation that BAT activation may contribute to impaired energy balance in cancer cachexia. Animal and human data to date provide an indication that BAT activation indeed occurs, but its quantitative impact on the degree of cachexia is controversial. The peripheral and central nervous system is known to influence satiation, with a possible role for impaired food reward processing in the brain. To date, there are limited confirmatory data, but this is an interesting new area to explore for better understanding and treating cancer-induced anorexia.
SUMMARY: The multimodal approach to counteract cancer cachexia should expand its targets to BAT and food reward processing in the brain.
RECENT FINDINGS: Nearly no new data have been published on energy requirements of cancer patients in the light of comprehensive new therapies in oncology. New developments, such as the introduction of staging with 18F-fluorodeoxyglucose PET-computed tomography scanning, led to the observation that BAT activation may contribute to impaired energy balance in cancer cachexia. Animal and human data to date provide an indication that BAT activation indeed occurs, but its quantitative impact on the degree of cachexia is controversial. The peripheral and central nervous system is known to influence satiation, with a possible role for impaired food reward processing in the brain. To date, there are limited confirmatory data, but this is an interesting new area to explore for better understanding and treating cancer-induced anorexia.
SUMMARY: The multimodal approach to counteract cancer cachexia should expand its targets to BAT and food reward processing in the brain.