The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Food intake is controlled in the brain which integrates important regulatory information from the periphery, especially the gut. A large part of this gut-brain signaling is transmitted by the vagus nerve from the gastrointestinal tract to the brainstem. Mechanical as well as chemical information is sensed by vagal afferents through direct activation of mechano- and chemoreceptors triggered by peptides...
Anticipatory physiological responses relevant to feeding biology were first described by Pavlov. These responses, termed cephalic phase responses, help prepare the digestive system and cue the appropriate metabolic pathways to meet the challenges associated with food ingestion. Cephalic phase responses represent a fundamental concept in regulatory physiology: anticipatory changes in state to meet...
Heart rate variability (HRV) refers to variations of heartbeat intervals of sinus rhythm and is used for the noninvasive investigation of cardiac autonomic functions and as a prognostic factor in life-threatening cardiac diseases. To date, HRV at two extreme ends of the spectrum of food intake, obesity, and anorexia nervosa (AN) has been investigated. It has been reported that the parasympathetic...
The branched-chain amino acids (BCAA) leucine, isoleucine, and valine can influence metabolism in the brain in several ways, including an effect on the synthesis of the monoamines dopamine, norepinephrine, and 5-hydroxytryptamine (5-HT). These monoamines are synthesized from the aromatic amino acids tyrosine and tryptophan, the latter being the precursor for 5-HT. The rate-limiting step in the synthesis...
The human female menstrual cycle is marked by the regular occurrence of menses appearing on average once every 28 days starting at puberty and ending at menopause. It is controlled by the endocrine system and requires adequate hormonal and nutritional status to function. Since the menstrual cycle is dependent on the synchronized operation between systems inputs and outputs, disturbances or system...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.