area postrema


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ar·e·a po·stre·'ma (AP),

[TA]
a small, elevated area in the lateral wall of the inferior recess of the fourth ventricle; one of the few loci in the brain where the blood-brain barrier is lacking; a chemoreceptor area associated with vomiting.
References in periodicals archive ?
The area postrema is located at the caudal end of the floor of the fourth ventricle known as Chemoreceptor Trigger Zone (CTZ).
Sc] was present in the brain but restricted to the dorsal motor nucleus of the vagus nerve and area postrema.
Endogeneus leptin signaling in the caudal nucleus tractus solitarius and area postrema is required for energy balance regulation.
Some of these effects are mediated by the AMPK pathway, which is inhibited by stimulation of GLP1R located in the nucleus of tractus solitarius, parabracheal nucleus, area postrema, hypothalamic paraventricular nucleus, and dorsal medical hypothalamus.
CINV can be caused by the stimulation of vomiting center by the abdominal vagal afferents or by the direct stimulation of CTZ in the area postrema.
14) Initially, CNS binding sites for radiolabeled forms of AMY (15) and sCT (16) were reported in brain areas as the nucleus accumbens, area postrema, dorsal raphe and subfornical organ.
Se han descrito dos tipos de lesiones; primero, aquellas con perdida de AQP4, cursando con desmielinizacion y necrosis en el nervio optico y medula espinal; y segundo, la perdida de AQP4 sin desmielinizacion ni necrosis en la medula espinal y area postrema.
Hence, barriers exist both at the choroid plexus and at the tissue capillary membranes essentially in all areas of the brain parenchyma except in some areas of the hypothalamus, pineal gland, and area postrema where substances diffuse with ease into the tissue space.
A number of central nervous system (CNS) structures are involved in acquisition of taste aversions, including the area postrema, the nucleus of the solitary tract, the parabrachial nucleus (GARCIA et al.
Zona gatillo quimiorreceptora (ZGQ) que se localiza en el area postrema, en el suelo del cuarto ventriculo, donde recibe estimulos emetogenos tanto exogenos como endogenos gracias a sus capilares fenestrados que permiten el paso de sustancias a traves de la barrera hematoencefalica.
Amines and other transmitter-like compounds in the bovine area postrema.
Some peripheral stimuli, such as inflammation, produce factors that can signal by multiple mechanisms; for example, the proinflammatory cytokine interleukin 1-b seems to activate the HPA axis via sensory nerve fibers in the vagus nerve; the area postrema, which is outside the blood-brain barrier; and perivascular cells in the region of the A2 cell group (Ericsson et al.

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