Life history and the ecology of stress: how do glucocorticoid hormones influence life-history variation in animals? Erica J. Crespi*, Tony D. Williams, Tim S. Jessop and Brendan Delehanty School of Biological Sciences, Washington State University, Box 644236, Pullman, Washington, USA; Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, V5A 1S6 Canada; Departme...

Muhammad A. Rehman,a Kim Ziebell,a John H. E. Nash,a,b Andrew M. Kropinski,a,b Zusheng Zong,a Emily Nafziger,a Patrick Boerlin,b Linda Chui,c,d John Devenish,e Sadjia Bekal,f Morag Graham,g,h Roger P. Johnsona Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario, Canadaa; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario,...

RÉSUMÉ:Biologie des récepteurs sérotoninergiques.Les récepteurs sérotoninergiques sont très hétérogènes. On les a regroupés en 7 familles différentes (5-HT1 – 5-HT7). À l’exception de 5HT3 qui appartient à la famille des récepteurs canaux, tous les autres appartiennent à la famille des récepteurs couplés à la protéine G et chaque famille a des caractéristiques structurales, pharmacologiques et ...

18 Although there are many studies on the epidemiology of dementia, there are relatively few longitudinal studies that address progression to dementia in individuals whose cognition was well characterized at baseline. Identifying those at higher risk for the development of dementia is an important goal. Studies indicate that up to 12% of normal older adults became cognitively impaired over two ...

NO, thereby relieving chronic angina; the identification of histochemical NADPH diaphorase reaction in brain as NO synthetase; how stimulation of excitatory pathways in brain stimulates the formation of cGMP, where NO is the intracellular messenger; and why in septic shock and chronic inflammatory disorders an excess of nitrate is excreted in the urine. The three isoforms of NO synthetase, Type...

The nucleus basalis of Meynert has been studied extensively in the recent literature. Interest in this nucleus has resulted from the discovery that it is a major source of cortical cholinergic input and that there is neuronal loss in the nucleus basalis in some dementing illnesses. Consistent and severe involvement of the nucleus basalis of Meynert has been found in Alzheimer's disease and in t...

Julie Lemieux, Louise Provencher, Denis Brunet, Jean-Charles Hogue Quebec City, QC, Canada REFERENCES 1. Toothaker TB, Rubin M. Paraneoplastic neurological syndromes: a review. Neurologist. 2009;15(1):21-33. 2. Murinson BB. Stiff-person syndrome. Neurologist. 2004;10(3): 131-7. 3. Gordon EE, Januszko DM, Kaufman L. A critical survey of stiffman syndrome. Am J Med. 1967;42(4):582-99. 4. Solimena...

Social capital is thought to buffer the negative effects of low income on health and thereby flatten social gradient. Child development research has suggested that networks adults children in a neighborhood may play protective role children’s outcomes. Yet little known about how this relationship applies diverse developmental outcomes early childhood. This study examines whether presence model ...

Historically, nursing education has recognized that writing enhances critical thinking, the basis of the clinical reasoning process. The online learning recently adopted by Nursing involves considerable writing, which may enhance critical thinking more than face-to-face courses. In the study reported here, the critical thinking and writing experiences of 34 registered nurses in an online course...