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 ?
Area postrema glutamate receptors mediate respiratory and gastric responses in the rabbit.
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.
3] receptors are located on the nerve terminals of the vagus in the periphery and centrally in the chemoreceptor trigger zone of the area postrema.
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.
Also known as the area postrema, the CTZ is found at the floor of the fourth ventricle and has an extensive capillary network that lacks a blood brain barrier.
On the other hand, Mouihate and Pittman have shown that fever after LPS injection does not increase cell death in hypocampus, hypothalamus, area postrema, subfornical organ, lamina terminalis and nucleus tractus solitarius (18).
Substance P induces vomiting and binds to neurokinin 1 (NK-1) receptors in the abdominal vagus, the nucleus tractus solitarius, and the area postrema.
Buna gore beslenme durumuna gore degisen leptin, insulin ve glikoz duzey enerji dengesini duzenler ve bu metabolik sinyaller arka beyindeki area postrema tarafindan algilanir.
It is also important to note that f-5-HT, but not p-5-HT, is able to excite the medullary area postrema (AP), which sends modulatory axons to both vagal and adrenergic medullary nuclei that are responsible for the parasympathetic and adrenal sympathetic peripheral activities, respectively.
Experimental study of the projections of the nucleus of the tractus solitarius and the area postrema in the cat.

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