Cellular strategies for retinal repair by photoreceptor replacement

Maintenance Cost Analysis for Replacement Model with Perfect Minimal Repair

With the evolution of technology, the maintenance of sophisticated systems is of concern for system engineers and system designers. The maintenance cost of the system depends in general on the replacement and repair policies. The system replacement may be in a strictly periodic fashion or on a random basis depending upon the maintenance policy. At failure, the repair of the system may be perfor...

Adult neurogenesis in brain repair: cellular plasticity vs. cellular replacement

1 Laboratory for NeuroRegeneration and Repair, Center for Neurology, Hertie Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, Germany 2 Graduate School for Cellular and Molecular Neuroscience, University of Tuebingen, Tuebingen, Germany 3 Molecular Neuroregeneration, Division of Brain Sciences, Department of Medicine, Imperial College London, London, UK *Correspondence:...

Retinal remodeling triggered by photoreceptor degenerations.

Many photoreceptor degenerations initially affect rods, secondarily leading to cone death. It has long been assumed that the surviving neural retina is largely resistant to this sensory deafferentation. New evidence from fast retinal degenerations reveals that subtle plasticities in neuronal form and connectivity emerge early in disease. By screening mature natural, transgenic, and knockout ret...

repair versus replacement for ischemic mitral regurgitation

background: this study was undertaken to compare the outcome in patients with moderate to severe ischemic mitral regurgitation (imr) undergoing coronary artery bypass grafting (cabg) with either mitral valve repair or mitral valve replacement. methods: between march 2002 and february 2005, 49 consecutive patients (mean age: 62.84±8.42 years; mean euroscore: 10.03±3.12) with coronary artery dise...

Repair of Brachial Plexus Avulsion: clinical outcome, strategies for cellular repair and MR imaging protocols