Arcuate nucleus, median eminence, and hypophysial pars tuberalis
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Arcuate nucleus, median eminence, and hypophysial pars tuberalis. / Korf, Horst Werner; Møller, Morten.
Handbook of Clinical Neurology. ed. / Dick F. Swaab; Felix Kreier; Paul J. Lucassen; Ahmad Salehi; Ruud M. Buijs. 1. ed. Elsevier, 2021. p. 227-251 (Handbook of Clinical Neurology, Vol. 180).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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TY - CHAP
T1 - Arcuate nucleus, median eminence, and hypophysial pars tuberalis
AU - Korf, Horst Werner
AU - Møller, Morten
N1 - Publisher Copyright: © 2021 Elsevier B.V.
PY - 2021
Y1 - 2021
N2 - The arcuate nucleus (ARC) is located in the mediobasal hypothalamus and forms a morphological and functional entity with the median eminence (ME), the ARC-ME. The ARC comprises several distinct types of neurons controlling prolactin release, food intake, and metabolism as well as reproduction and onset of puberty. The ME lacks a blood–brain barrier and provides an entry for peripheral signals (nutrients, leptin, ghrelin). ARC neurons are adjacent to the wall of the third ventricle. This facilitates the exchange of signals from and to the cerebrospinal fluid. The ventricular wall is composed of tanycytes that serve different functions. Axons of ARC neurons contribute to the tuberoinfundibular tract terminating in the ME on the hypophysial portal vessels (HPV) and establish one of the neurohumoral links between the hypothalamus and the pituitary. ARC neurons are reciprocally connected with several other hypothalamic nuclei, the brainstem, and reward pathways. The hypophysial pars tuberalis (PT) is attached to the ME and the HPV. The PT, an important interface of the neuroendocrine system, is mandatory for the control of seasonal functions. This contribution provides an update of our knowledge about the ARC-ME complex and the PT which, inter alia, is needed to understand the pathophysiology of metabolic diseases and reproduction.
AB - The arcuate nucleus (ARC) is located in the mediobasal hypothalamus and forms a morphological and functional entity with the median eminence (ME), the ARC-ME. The ARC comprises several distinct types of neurons controlling prolactin release, food intake, and metabolism as well as reproduction and onset of puberty. The ME lacks a blood–brain barrier and provides an entry for peripheral signals (nutrients, leptin, ghrelin). ARC neurons are adjacent to the wall of the third ventricle. This facilitates the exchange of signals from and to the cerebrospinal fluid. The ventricular wall is composed of tanycytes that serve different functions. Axons of ARC neurons contribute to the tuberoinfundibular tract terminating in the ME on the hypophysial portal vessels (HPV) and establish one of the neurohumoral links between the hypothalamus and the pituitary. ARC neurons are reciprocally connected with several other hypothalamic nuclei, the brainstem, and reward pathways. The hypophysial pars tuberalis (PT) is attached to the ME and the HPV. The PT, an important interface of the neuroendocrine system, is mandatory for the control of seasonal functions. This contribution provides an update of our knowledge about the ARC-ME complex and the PT which, inter alia, is needed to understand the pathophysiology of metabolic diseases and reproduction.
KW - Agouti-related peptide
KW - Dopamine
KW - Feeding
KW - Gonadotropin-releasing hormone
KW - Kisspeptin
KW - Metabolism
KW - Neuropeptide Y
KW - Proopiomelanocortin
KW - Tanycytes
KW - Thyroid-stimulating hormone
U2 - 10.1016/B978-0-12-820107-7.00015-X
DO - 10.1016/B978-0-12-820107-7.00015-X
M3 - Book chapter
C2 - 34225932
AN - SCOPUS:85109432635
SN - 978-0-12-820107-7
T3 - Handbook of Clinical Neurology
SP - 227
EP - 251
BT - Handbook of Clinical Neurology
A2 - null, Dick F. Swaab
A2 - null, Felix Kreier
A2 - null, Paul J. Lucassen
A2 - null, Ahmad Salehi
A2 - null, Ruud M. Buijs
PB - Elsevier
ER -
ID: 276334177