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| Maggio,B.; Rosetti,C.M.; Borioli,G.A.; Fanani,M.L.; Del Boca,M.. |
| The lipids and proteins of biomembranes exhibit highly dissimilar conformations, geometrical shapes, amphipathicity, and thermodynamic properties which constrain their two-dimensional molecular packing, electrostatics, and interaction preferences. This causes inevitable development of large local tensions that frequently relax into phase or compositional immiscibility along lateral and transverse planes of the membrane. On the other hand, these effects constitute the very codes that mediate molecular and structural changes determining and controlling the possibilities for enzymatic activity, apposition and recombination in biomembranes. The presence of proteins constitutes a major perturbing factor for the membrane sculpturing both in terms of its surface... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lipid monolayers; Sphingomyelinase; C-Fos; Segregated lipid domains; Lipid-protein interaction; Anphitropic proteins. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001200002 |
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| Medeiros,M.A.; Canteras,N.S.; Suchecki,D.; Mello,L.E.A.M.. |
| In laboratory animals, acupuncture needs to be performed on either anesthetized or, if unanesthetized, restrained subjects. Both procedures up-regulate c-Fos expression in several areas of the central nervous system, representing therefore a major pitfall for the assessment of c-Fos expression induced by electroacupuncture. Thus, in order to reduce the effect of acute restraint we used a protocol of repeated restraint for the assessment of the brain areas activated by electroacupuncture in adult male Wistar rats weighing 180-230 g. Repeated immobilization protocols (6 days, 1 h/day and 13 days, 2 h/day) were used to reduce the effect of acute immobilization stress on the c-Fos expression induced by electroacupuncture at the Zusanli point (EA36S). Animals... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acupuncture; Zusanli point; Immediate early genes; C-Fos; Restraint; Habituation. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001200009 |
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| Guadarrama-Ortiz,Parménides; Ramírez-Aguilar,Ricardo; Madrid-Sánchez,Alejandro; Castillo-Rangel,Carlos; Carrasco-Alcántara,Diana; Aguilar-Roblero,Raúl. |
| El núcleo supraquiasmático (NSQ) es el principal reloj biológico de los mamíferos y sincroniza la actividad de la glándula pineal al ciclo luz-oscuridad a través de una vía polisináptica. El efecto de asa de retroalimentación neuroendocrina se lleva a cabo por la melatonina. El presente trabajo pretende demostrar que la glándula pineal modula la sensibilidad a la luz en el NSQ. Se utilizaron ratas Wistar, y se asignaron a 3 grupos: grupo A (falsa pinealectomía -sham-, sin luz), grupo B (falsa pinealectomía -sham- + luz) y grupo C al cual se le realizó la pinealectomía + luz, después de la manipulación se sacrifican para realizar inmunohistoquímica para c-Fos y al final conteo celular por técnica de estereología. Se obtuvo una reducción del 46,8% del... |
| Tipo: Journal article |
Palavras-chave: Pinealectomía; C-Fos; Falsa pinealectomía; Núcleo supraquiasmático. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200004 |
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| Muroi, Yoshikage; Ishii, Toshiaki; Komori, Seiichi; Kitamura, Nobuo; Nishimura, Masakazu; 室井, 喜景; 石井, 利明; 北村, 延夫. |
| We previously reported that male mice are more attracted to volatile odors from intact female mice than from ovarlectornized female mice. In the present study, we investigated male attraction to volatile odors from soiled bedding collected from the cages of estrous or ovariectomized female mice. There was no difference in the total time spent sniffing volatile odors from estrous and ovariectomized female mice, suggesting that female mice emit volatile odors which are not excreted into bedding. To test this possibility, we investigated c-Fos expression in the mitral cell layer and granule cell layer of the accessory olfactory bulb 60 min after exposure of male mice to volatile odors without physical contact. Volatile odors from an estrous female mouse... |
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Palavras-chave: Accessory olfactory bulb; Vomeronasal organ; Pheromone; C-Fos; Habituation-dishabituation test; Sexual attraction. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/45 |
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