Претраживање
Приказ резултата 1-10 од 15
Gonadal hormone dependent developmental plasticity of catecholamine:beta 2-adrenoceptor signaling complex in male rat thymus: Putative implications for thymopoiesis
(Elsevier, Amsterdam, 2013)
The study was undertaken considering that: i) androgens affect beta(2)-adrenoceptor (AR)-mediated catecholamine (CA) action in many tissues; and ii) peripubertal changes in both circulating androgen and thymic CA levels ...
Modulation of humoral immune response by central administration of leucine-enkephalin: Effects of mu, delta and kappa opioid receptor antagonists
(Elsevier, Amsterdam, 1996)
The effect of leucine-enkephalin (Leu-Enk) on primary humoral immune response was investigated following intracerebroventricular (i.c.v.) administration of the peptide in-the rat. Leu-Enk stimulated plaque-forming cell ...
Early postnatal castration affects thymic and thymocyte noradrenaline levels and beta-adrenoceptor-mediated influence on the thymopoiesis in adult rats
(Elsevier, Amsterdam, 2007)
The interactions among the nervous, endocrine and immune system were studied by examining: i) thymic and thymocyte catecholamine levels in adult rats castrated (Cx) at postnatal day 3 and ii) effects of 14-day-long propranolol ...
Chronic propranolol treatment affects expression of adrenoceptors on peritoneal macrophages and their ability to produce hydrogen peroxide and nitric oxide
(Elsevier, Amsterdam, 2009)
Using both immunocytochemical and flow cytometric analyses of rat peritoneal exudate cells constitutive expression of tyrosine hydroxylase and both beta(2)- and alpha(1)-adrenoceptors on macrophages was revealed. Furthermore, ...
Expression of alpha(1)-adrenoceptors on thymic cells and their role in fine tuning of thymopoiesis
(Elsevier Science Bv, Amsterdam, 2009)
The study was undertaken to explore: i) the presence of alpha(1)-adrenoceptors (AR) on thymic lymphoid and non-lymphoid cells and ii) their putative role in T-cell development. The expression of alpha(1)-AR on thymic cells ...
Sexual dimorphism in the catecholamine-containing thymus microenvironment: A role for gonadal hormones
(Elsevier Science Bv, Amsterdam, 2008)
The study was undertaken to explore whether there were: i) apart from neural and circulatory, some other sources of catecholamines (CAs) in rat thymus and ii) gender-specific differences in thymic CA levels, and if so to ...
Neonatal androgenization affects the efficiency of beta-adrenoceptor-mediated modulation of thymopoiesis
(Elsevier Science Bv, Amsterdam, 2011)
We tested the hypothesis that neonatal androgenization affects the efficacy of beta-adrenoceptor (beta-AR)-mediated fine tuning of thymopoiesis in adult female rats by modulating the thymic noradrenaline (NA) level and/or ...
Neuropeptide Y receptor-specifically modulates human neutrophil function
(Elsevier Science Bv, Amsterdam, 2008)
Despite a continuously growing body of evidence highlighting the role of NPY in the immune system, surprisingly little is known about its ability to alter human leukocyte function. We therefore set out to examine NPY ...
Exposure to forced swim stress alters morphofunctional characteristics of the rat thymus
(Elsevier, Amsterdam, 2005)
The aim of this study was to investigate whether chronic stress, induced by repeated daily swimming during 21 days, alters the morphofunctional parameters in the thymus of adult rats. Our results showed that chronic stress ...
Reduced tissue immigration of monocytes by neuropeptide Y during endotoxemia is associated with Y-2 receptor activation
(Elsevier, Amsterdam, 2004)
Neuropeptide Y (NPY) increases survival in experimental septic shock, which might be mediated by cardiovascular and/or immunological effects. To study the latter hypothesis, we monitored blood leukocyte subsets over 96 h ...