Restricted growth of Schwann cells lacking Cajal bands slows conduction in myelinated nerves
Article Abstract:
The internodal growth in the wild-type nerves is precisely matched to nerve extension but disruption of the cytoplasmic bands in Periaxin-null mice impairs Schwann cell elongation during nerve growth. Microtubule-based transport in the longitudinal bands of Cajal permits internodal Schwann cells to lengthen in response to axonal growth.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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The search for a topographic signature of life
Article Abstract:
The effect of biotic processes on landscape development, weathering, erosion, sediment transport mechanisms, climate and tectonics is investigated. Field and modeling studies of biotic processes helps in understanding its role in landscape evolution and the possibility of identifying the topographic signature of life.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Wnt-Ryk signalling mediates medialateral retinotectal topographic mapping
Article Abstract:
Wnt3 is expressed in a medial-lateral decreasing gradient in chick optic tectum and mouse superior colliculus. Wnt3 repulsion is mediated by Ryk, expressed in a ventral-to-dorsal decreasing gradient, whereas attraction of dorsal axons at lower Wnt3 concentrations is mediated by Frizzled.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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