Cancer anorexia: a model for the understanding and treatment of secondary anorexia.

Abstract:

:Under normal conditions, food intake is controlled in the hypothalamus by: (i) transducing metabolic/sensorial inputs arising from the periphery into neuronal response; (ii) integrating the information originating from different tissues; and (iii) triggering the appropriate feeding responses. Thus, the anorexia associated with a number of chronic diseases, including cancer, may result from an abnormal input of information to the hypothalamus, or in its defective transduction and integration, or in the induction of exaggerated and inappropriate feeding responses. Currently available data suggest that the pathogenesis of secondary anorexia is multifactorial, and involves most of the neuronal signalling pathways modulating energy intake, including hormones (e.g. leptin), neuropeptides (e.g. NPY), cytokines (e.g. IL-1, IL-6, TNF) and neurotransmitters (e.g. serotonin and dopamine). However, it is unlikely that they represent separate and distinct pathogenic mechanisms, rather it appears that close interrelationships may exist among them. In line with this reasoning, consistent experimental and human data suggest that the hypothalamic serotonergic neurotransmission may represent a major target on which different anorexia-related factors converge. Thus, interfering pharmacologically with hypothalamic serotonin synthesis and activity may represent an effective therapeutic strategy in anorectic patients, as suggested by recent preliminary clinical data.

journal_name

Int J Cardiol

authors

Rossi Fanelli F,Laviano A

doi

10.1016/s0167-5273(02)00234-6

subject

Has Abstract

pub_date

2002-09-01 00:00:00

pages

67-72

issue

1

eissn

0167-5273

issn

1874-1754

pii

S0167527302002346

journal_volume

85

pub_type

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