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Repeated administration of caffeine induces either sensitization or tolerance of locomotor stimulation depending on the environmental context
(Polish Acad Sciences Inst Pharmacology, 2012-01-01)
Caffeine is the psychostimulant substance consumed in greatest quantities in the world. The repeated administration of psychostimulants can either decrease or increase the drug effect, inducing tolerance or sensitization, ...
Mineral trioxide aggregate but not light-cure mineral trioxide aggregate stimulated mineralization
(Elsevier B.V., 2008-01-01)
The purpose of this study was to evaluate the subcutaneous response of rat connective tissue to light-cure MTA and Angelus MTA. These materials were placed in polyethylene and dentin tubes and implanted into dorsal connective ...
The spleen of Physalaemus nattereri (Amphibia: Anura): morphology, melanomacrophage pigment compounds and responses to α-melanocyte stimulating hormone
(2016-07-02)
The spleen is a lymphoid organ associated with defense mechanisms in anurans, and also it has pigmented cells. Melanomacrophages (MMs) are melanin-containing cells, which originated from hematopoietic stem cells and are ...
The action of low-intensity pulsed ultrasound in bones of osteopenic rats
(Blackwell Publishing IncMaldenEUA, 2004)
Caracterização da deflagração da descarga eletrocirúrgica
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2009-11-27)
Electrosurgical spark is the phenomenon that rules the main effects of electrosurgery, cut and fulguration. Previous studies have shown evidences that electrosurgical sparkling generates important voltages and currents ...
Nerve growth factor induces the expression of functional FSH receptors in newly formed follicles of the rat ovary
(ENDOCRINE SOC, 2002-04)
The neurotrophin nerve growth factor (NGF) and its two membrane-anchored receptors are expressed in the developing ovary before the organization of the first primordial follicles. In the absence of NGF, the growth of ...
Functional relationship between subfrnical organ cholinergic stimulation and nitrergic activation influencing cardiovascular and body fluid homeostasis
(Elsevier B.V., 2007-10-04)
We have studied the effects of L-NG-nitro arginine methyl esther (L-NAME), L-arginine (LAR), inhibitor and a donating nitric oxide agent on the alterations of salivary flow, water intake, arterial blood pressure (MAP) and ...
Imidazoline receptors of the paraventricular nucleus on the pressor response induced by stimulation of the subfornical organ
(Elsevier B.V., 1998-02-01)
In the present experiments we investigated a possible involvement of imidazoline receptors of the paraventricular nucleus (PVN) of the hypothalamus on the presser effects of the angiotensin LI (ANG II) injected into the ...