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Sökning: WFRF:(Moberg A. 1975)

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  • Diaz-Cabiale, Z., et al. (författare)
  • Long-term modulation by postnatal oxytocin of the α2-adrenoceptor agonist binding sites in central autonomic regions and the role of prenatal stress
  • 2004
  • Ingår i: Journal of neuroendocrinology (Print). - : Wiley. - 0953-8194 .- 1365-2826. ; 16:3, s. 183-190
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this work was to evaluate whether oxytocin administered in male rats subcutaneously early in life in the absence or presence of food restriction during pregnancy has life-long effects on the α2-agonist binding sites in the nucleus of the solitarii tract (NTS), in the hypothalamus and the amygdala, as evaluated by quantitative receptor autoradiography. Maternal food restriction alone increased the affinity of the α2-agonist [3H]UK14.304 binding sites exclusively in the NTS. In offspring from ad libitum fed dams, oxytocin treatment significantly increased the density of α2-agonist binding sites in the NTS and in the hypothalamus. The Kd value of the α2-agonist binding sites in the hypothalamus of these rats, but not in the other regions studied, was also significantly increased. In offspring from food-restricted dams, oxytocin treatment produced a significant increase of the Bmax values in the hypothalamus and the amygdala and the Kd value of the α2-agonist binding sites in the NTS of these rats also was selectively and significantly increased. These results suggest that a postnatal, oxytocin-induced increase of regional α2-adrenoceptor function can be seen in adulthood by a persistent, regionally selective increase in the density of central α2-adrenoceptor agonist binding sites, in the absence of an affinity change in the NTS. Such a regional increase of α2-adrenoceptor signalling in adulthood may contribute to the anti-stress action of postnatal oxytocin. By contrast, after prenatal stress, the potential increase in α2-adrenoceptor signalling takes place via selective increases of density with no changes of affinity of the α2-agonist binding sites in the hypothalamus and the amygdala.
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3.
  • Ferritsius, Rita, et al. (författare)
  • Water Absorption and Wet Strength in Hot-pressed Paper
  • 2022
  • Ingår i: Proceedings of the International Mechanical Pulping Conference. ; , s. 168-170
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Effects of hot-pressing on anisotropic sheets with less good formation was here investigated. The main objective was to study water absorption capacity in relation to the wet strength of hot-pressed paper. A pilot paper machine was used to produce papers from TMP and CTMP furnishes. The results indicate that it is not only the high dry content after wetting that contributes to the high wet strength of the paper hot-pressed at 200C. If it is required to have a paper with both low absorption of water and high wet strength, hot-pressing at 200C seems to be more desirable than using con-ventional drying and adding wet chemical agents to the furnish.
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