Variability in axillary lymph node delineation for breast cancer radiotherapy in presence of guidelines on a multi-institutional platform.

Aim: To quantify the variability between radiation oncologists (ROs) when outlining axillary nodes in breast cancer.

Material And Methods: For each participating center, three ROs with different levels of expertise, i.e.

Three-dimensional conformal radiotherapy, static intensity-modulated and helical intensity-modulated radiotherapy in glioblastoma. Dosimetric comparison in patients with overlap between target volumes and organs at risk.

Aims And Background: Radiotherapy is the standard treatment of glioblastoma. Three-dimensional conformal radiotherapy is the standard technique to treat glioblastoma. Intensity-modulated radiotherapy and helical intensity-modulated radiotherapy (tomotherapy) are becoming widely used.

Radiotherapy in low-grade glioma adult patients: a retrospective survival and neurocognitive toxicity analysis.

Purpose: The treatment of low-grade glioma is still debated. Surgery is the first-line approach, and the correct timing of radiation therapy has not yet been defined since "early" radiation therapy improves relapse-free survival but not overall survival. Since a longer progression-free survival is desirable, the main issue related to radiotherapy is the incidence of late neurocognitive toxicity.

Intraspinal degenerative atrophy caused by sciatic nerve lesions prevented by acetyl-L-carnitine.

Peripheral nerve lesions cause retrograde changes in the spinal cord, involving initially the descending serotoninergic pathways and later the substance P sensory input and methionine-enkephalin interneurons. Within 48 h after sciatic nerve resection there is a significant increase of 5-hydroxyindoleacetic acid in the lumbar spinal cord with no changes of serotonin metabolism in the cell body areas. The immunocytochemical analysis of the spinal cord shows that 20 days after nerve lesion there is a loss of substance P-positive boutons in the laminae I and II of the dorsal horn in the lumbar segment.