INT118107
From wiki-pain
|
|
|
|
|
Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
fragment is threefold greater than that of the C57BL/6 strain confirming an increase in Avpr1b promoter activity with the long form of microsatellite (see, Figure 1B and C), in a reporter assay in COS-7 cells. | |||||||||||||||
| |||||||||||||||
|
Stimulation of the Avpr1b in the rat adrenal medulla causes catecholamine secretion (Grazzini et al. 1998). | |||||||||||||||
| |||||||||||||||
|
The preferential expression of Avp in the pPVN in adaptation to chronic stress observed in rats is associated with an upregulation of Avpr1bs (but not Crh receptors) in the anterior pituitary gland (Aguilera 1994). | |||||||||||||||
| |||||||||||||||
|
Comparisons of Oxtr mRNA levels in Avpr1b KO and wild-type mouse anterior pituitaries appear to suggest an upregulation of Oxtrs in Avpr1b KO mice (Nakamura et al. 2008). | |||||||||||||||
| |||||||||||||||
|
Our studies in Avpr1b KO mice (Lolait et al. 2007a,b; Stewart et al. 2008a,b) and similar studies on acute stress in Brattleboro rats (Domokos et al. 2008; Zelena et al. 2009) both often note a disparity between stress-induced ACTH versus CORT release in Avp/Avpr1b-deficient animals. | |||||||||||||||
| |||||||||||||||
|
We cannot totally rule out the possibility that mechanisms compensating for the loss of Avpr1b are active in the Avpr1b KO. | |||||||||||||||
| |||||||||||||||
|
One laboratory that used agonists and antagonists to Avp/Oxt receptors (but notably none selective for Avpr1bs) in ? | |||||||||||||||
| |||||||||||||||
|
-cell lines (Yibchok-anun and Hsu 1998) and perfused rat pancreas (Yibchok-anun et al. 1999) produced contrasting results, the latter study suggesting glucagon secretion in response to Avp, and Oxt is mediated through the activation of Avpr1bs and Oxtrs, respectively, rather than any activity of Avp on Oxtrs. | |||||||||||||||
| |||||||||||||||
|
The data suggests that the Avpr1b is required to drive the HPA axis response to acute antidepressant treatment and provides further evidence of a sexual dichotomy in the regulation of PVN Avp/Oxt gene expression following antidepressant administration. | |||||||||||||||
| |||||||||||||||
|
In contrast, fluoxetine treatment increased PVN Avp mRNA levels in female Avpr1b wild type but not KO animals. | |||||||||||||||
| |||||||||||||||
|
This study shows Avpr1b mRNA to be most prominent in the CA2 pyramidal neurons of the mouse and human HIP while receptor transcripts are also found in the paraventricular nucleus (PVN) and amygdala, albeit at a lower level. | |||||||||||||||
| |||||||||||||||
|
Nevertheless, a number of studies utilising immunohistochemistry and in situ hybridisation histochemistry (ISHH) have shown that the Avpr1b is expressed centrally, while reverse transcription-polymerase chain reaction (RT-PCR) and functional studies have demonstrated Avpr1bs in a number of peripheral tissues (e.g. | |||||||||||||||
| |||||||||||||||
|
In vitro studies using cells transiently transfected with a rat Avpr1b gene promoter sequence have identified regulatory GAGA repeats that influence Avpr1b gene transcription (Volpi et al. 2002). | |||||||||||||||
| |||||||||||||||
|
We examined whether genetic variations in the AVP receptor 1b gene (AVPR1b) could be associated with increased susceptibility to affective disorders using a gene-based association analysis of single-nucleotide polymorphisms (SNPs). | |||||||||||||||
| |||||||||||||||
|
General Comments
This test has worked.