Some serovars display association with a particular set of hosts that may be stable over many decades and large geographical distances suggesting a level of adaptation or restriction [ 2].
Two lifestyle adaptations, caloric restriction and exercise (Jang et al., 2012; Valdez et al., 2010), have been consistently demonstrated to extend lifespan and, in parallel, to mitigate age-related alterations of NMJ.
Muller MJ, Enderle J, Pourhassan M, Braun W, Eggeling B, Lagerpusch M et al. Metabolic adaptation to caloric restriction and subsequent refeeding: the Minnesota Starvation Experiment revisited.
Thus, one driving factor of the altered faecal microbiota composition might be the bacterial adaptation to caloric restriction.
These observations provide further support for the involvement of the MC3Rs in regulating adaptation to food restriction.
The exact adaptations depend on restrictions for exercise therapy identified by the therapist in the diagnostic phase (anamnesis and physical examination).
Accordingly, in our previous work we demonstrated that in adipocytes the metabolic adaptation to nutrient restriction is associated with the silencing of the TOR pathway [ 17].
Sirt1 has been shown to function together with PGC-1α to promote adaptation to caloric restriction by regulating the genetic programs for gluconeogenesis and glycolysis in the liver.
It is a class III HDAC, which is responsible for modifying histones as well as some non-histone proteins through deacetylation and thereby regulating cell growth, apoptosis, stress response, adaptation to calorie restriction, metabolism, cellular senescence and tumorigenesis [ 16– 16].
Therefore, we propose that the two processes, aging and oncogenesis, could have joint evolutionary histories, and the role of CR in controlling malignant formation could be an evolutionary spin-off of the adaptation to food restriction.
This important enzyme is a class III histone deacetylase (HDAC), which is responsible for modifying histones as well as some non-histone proteins through deacetylation and thereby regulating cell growth, apoptosis, stress response, adaptation to calorie restriction, metabolism, cellular senescence and tumorigenesis.
