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Ontogeny of vasopressin and oxytocin in the fetal rat : early vasopressinergic innervation of the fetal brainBuijs, Ruud M. ; Velis, D. N. ; Swaab, Dick FransThe content and distribution of vasopressin and oxytocin were determined during fetal development in the rat brain and pituitary by means of radioimmunoassay and immunocytochemistry. The vasopressin ... content in the fetal brain showed a gradual rise from day 16 of pregnancy onwards, while pituitary vasopressin rapidly increased from fetal day 19 until birth. The oxytocin content in the fetal brain was considerably lower than the vasopressin content. A decrease in oxytocin content was seen between day 16 and day 18 while from day 18 of pregnancy onwards a slight increase was found. The pituitary oxytocin content starts to rise between day 17 and 18 of pregnancy, but at term the pituitary oxytocin content was only 1/20 of the vasopressin value. Immunocytochemistry revealed that vasopressin levels in the fetal rat brain were not only due to the presence of the classical hypothalamoneurohypophyseal system, but also to the early development of exohypothalamic fibers. Vasopressin containing cells were seen from fetal day 16 in the supraoptic nucleus, and from fetal day 18 in the paraventricular nucleus. The fiber outgrowth of these cells towards the pituitary and extrahypothalamic brain sites seems to be well synchronized, as on day 17 vasopressin containing fibers could be demonstrated in the olfactory bulb as well as in the median eminence. No positive staining for oxytocin could be obtained in the fetal rat, while during the entire fetal period no positive staining was found in cell bodies in the region of the suprachiasmatic nucleus. The early peptidergic innervation of the brain, which enabled the tracing of the source of some exohypothalamic fibers, might be related to several central processes among which brain development itself is included.Vir: Peptides. - ISSN 0196-9781 (Vol. 1, iss. 4, 1980, str. 315-324)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 1980Jezik - angleškiCOBISS.SI-ID - 157769731
Avtor
Buijs, Ruud M. |
Velis, D. N. |
Swaab, Dick Frans
Teme
vasopressin |
oxytocin |
fetus |
rats |
brain |
vazopresin |
oksitocin |
plod |
podgane |
možgani
Vnos na polico
Trajna povezava
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Buijs, Ruud M. | |
Velis, D. N. | |
Swaab, Dick Frans | 52101 |
Vir: Osebne bibliografije
in: SICRIS
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