Food anticipation depends on oscillators and memories in both body and brain

Silver, Rae; Balsam, Peter D.; Butler, Matthew; LeSauter, Joseph

doi:10.1016/j.physbeh.2011.05.034

Cited by 41 publications

(27 citation statements)

References 80 publications

(89 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The identity of this proposed oscillator is unknown. The food-entrained oscillator probably consists of a web of neuronal sites in the brain that interacts with signals from other parts of the body to produce a behavioral and physiological response that fosters optimal food consumption when food is available (4,62).…”

Section: Food As a Modulator Of Peripheral Circadian Clocksmentioning

confidence: 99%

“…For example, ghrelin (an orexigenic hormone produced in the stomach and intestine) may play a role in food-anticipatory activity, given that it is involved in the initiation of feeding and its plasma level increases prior to feeding. Support for its role has been provided by the observation that ghrelin receptor knockout mice exhibit considerably less food-anticipatory activity than do wild-type mice (35,62). Other humoral factors that may participate in food entrainment include corticosterone and glucose (46).…”

Section: Food As a Modulator Of Peripheral Circadian Clocksmentioning

confidence: 99%

See 1 more Smart Citation

Regulation of Intestinal Lipid Absorption by Clock Genes

Hussain

2014

Annu. Rev. Nutr.

View full text Add to dashboard Cite

Plasma levels of triacylglycerols and diacylglycerols, the lipoproteins that transport them, and proteins involved in their absorption from the intestinal lumen fluctuate in a circadian manner. These changes are likely controlled by clock genes expressed in the intestine that are probably synchronized by neuronal and humoral signals from the suprachiasmatic nuclei, which constitute a master clock entrained by light signals from the eyes and from the environment, e.g., food availability. Acute changes in circadian rhythms--e.g., due to nonsynchronous work schedules or a transcontinental flight--may trigger intestinal discomfort. Chronic disruptions in circadian control mechanisms may predispose the individual to irritable bowel syndrome, gastroesophageal reflux disease, and peptic ulcer disease. A more detailed understanding of the molecular mechanisms underlying temporal changes in intestinal activity might allow us to identify novel targets for developing therapeutic approaches to these disorders.

show abstract

Section: Food As a Modulator Of Peripheral Circadian Clocksmentioning

confidence: 99%

Section: Food As a Modulator Of Peripheral Circadian Clocksmentioning

confidence: 99%

Regulation of Intestinal Lipid Absorption by Clock Genes

Hussain

2014

Annu. Rev. Nutr.

View full text Add to dashboard Cite

show abstract

“…In animals non-photic zeitgeber such as feeding, social cues, and other signals can entrain (Silver et al 2011;Honma and Honma 2009;Satoh et al 2006;Mistlberger and Skene 2005;Stephan 2002).…”

Section: Comments On Light Photoreceptors and Circadian Modelsmentioning

confidence: 99%

“…For instance, the circadian control of our sleepwake cycle ensures that we rise in the morning and fall asleep in the evening at a preferred time. Food intake and digestion are likewise controlled by this clock and gated to certain times of the day (Silver et al 2011;Duguay and Cermakian 2009;Forsgren 1935). The circadian clock will time these events also under constant conditions.…”

mentioning

confidence: 99%

How Light Resets Circadian Clocks

2014

View full text Add to dashboard Cite

The daily revolutions of the earth around its axis are responsible for day and night and its annual orbit around the sun for the seasons with their fluctuations in day length. Most organisms have adapted to these diurnal and annual cycles. The strategies and mechanisms used are quite delicate and complicated.It came as a surprise that photosynthesis and many other processes are, however, additionally controlled by internal clocks. Thus, photosynthesis fluctuates not only during the daily light-dark cycle (=LD; see the List of Abbreviations and http://www.circadian.org/dictionary.html) but also when the plants are kept under LL and constant temperature (Hennessey and Field 1991). However, the period length (period for short) of this rhythmic event then deviates from exactly 24 h and is therefore called circadian (from Latin circa, about, and dies, day). If in the absence of LD and temperature cycles other 24 h time cues (also called zeitgeber, German for time giver) would control the rhythm, it should show an exact 24 h rhythm. This is not the case, demonstrating the endogenous nature of a clock that is locked to light signals (see Fig. 18.1). Spectrum of RhythmsEndogenous rhythms of organisms are not only tuned to the daily cycle of 24 h. The range of rhythms found in organisms covers ultradian (with periods of several hours to very short ones), circadian, and annual (with periods of about a year) rhythms. Other rhythms such as tidal, 14-day, and monthly ones cope with influences of the moon on the earth, mainly on the water movements of the oceans, and they are therefore found in organisms at the coasts and in the sea. Annual rhythms interact with the day-length changes during the year (see below). There are furthermore rhythms with periods covering several years. The following discussion of a "biological clock" is restricted to circadian rhythms. Even they are often not just composed of one clock type but form a "circadian system" consisting of two or more clocks with different prop- Function of Circadian ClocksThe term "clock" usually implies a time-measuring device or function. For instance, the day length (or night length) can be determined by an organism. Since day length is a function of the time of the year (long days in summer, short days in winter), it can be used to time certain events such as flowering or tuber formation of a plant or breeding of birds and mammals during the most appropriate season. These processes are denoted photoperiodism (see Chap. 19).However, a clock can also be used to set a certain temporal order. For instance, the circadian control of our sleepwake cycle ensures that we rise in the morning and fall asleep in the evening at a preferred time. Food intake and digestion are likewise controlled by this clock and gated to certain times of the day (Silver et al. 2011;Duguay and Cermakian 2009;Forsgren 1935). The circadian clock will time these events also under constant conditions. Furthermore, circadian clocks can serve as alarm clocks.

show abstract

“…Therefore, FAA has been considered to be the behavioral output of a foodentrained multi-oscillatory system. However, the neural components of this conditioned system, its inputs and how food sets its phase are not well understood (Carneiro and Araujo, 2012;Silver et al, 2011). A natural, experimentally accessible example of FAA is displayed by the rabbit pup (Caba et al, 2008;Morgado et al, 2010).…”

Section: Introductionmentioning

confidence: 99%