منابع مشابه
Shrinking spines
Text by Hema Bashyam [email protected] Skin-based immunity W hen skin cells are hit by a blast of UV light, they instruct dendritic cells (DCs) to suppress immunity system-wide, say Karin Loser, Stefan Beissert (University of Münster, Münster, Germany), and colleagues. UV has the unusual ability to cause immunosuppression by recruiting T regulatory cells (T regs). UV has thus been used t...
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The post-natal development of penile spines, their appearance in adult males, and the changes that occur in them after castration, after treatmellt of castrated males with testosterone propionate, and after cessation of hormone treatment were studied using both pre and postpuberal castrates. Most of the observations were made on live animals and the conditions of the spines were correlated with...
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Vascular stiffening of the large arteries is a common feature of aging and is exacerbated by many common disorders such as hypertension, diabetes, and renal disease. This change influences the phasic mechanical stresses imposed on the blood vessels that in turn is important to regulating smooth muscle tone, endothelial function, and vascular health. In addition, the heart typically adapts to co...
متن کاملDendritic Spines
Dendritic spines are important sites of excitatory synaptic transmission and changes in the strength of these synapses are likely to underlie important higher brain functions such as learning and memory. Spines form biochemical compartments for isolating reactions that occur at one synapse from those at other synapses thereby providing a possible way to ensure the specificity of connections bet...
متن کاملDendritic Spines
What are they? Dendritic spines are small protrusions that emerge from the dendrites of neurons (Figure 1). Most excitatory synapses in the brain are found on spine heads. Typically, a spine consists of a bulbous head, volume 0.001–1 μm3, at the end of a thin spine neck, diameter around 0.1 μm. A 100 μm length dendrite can contain several hundred spines. The human cerebral cortex is thought to ...
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ژورنال
عنوان ژورنال: Nature Neuroscience
سال: 2004
ISSN: 1097-6256,1546-1726
DOI: 10.1038/nn0404-322