OBJECTIVE This research attempts to identify the part the hippocampus plays in accelerated fracture-healing after traumatic brain injury as well as to test functions of calcitonin gene-related peptide (CGRP) during this process. MATERIALS AND METHODS Experiments were carried out on Male Sprague-Dawley rats that were split into four groups at random: TBI-fracture group, fracture-only group, TB...

Using immunohistochemistry and in situ hybridization the expression of calcitonin gene-related peptide (CGRP) was studied in the mouse spinal cord under normal conditions and after unilateral rhizotomy and after local colchicine treatment. Under normal conditions a dense plexus of CGRP-immunoreactive (IR) fibres was observed in the superfical layers of dorsal horns with lower numbers of fibers ...

BACKGROUND Calcitonin gene-related peptide (CGRP) is a vasoactive neuropeptide whose biological activity has potential therapeutic value for many vascular related diseases. CGRP is a 37 amino acid neuropeptide that signals through a G protein-coupled receptor belonging to the secretin receptor family. Previous studies on the calcitonin-like receptor (CLR), which requires co-expression of the re...

Recent findings CGRP is widely distributed in the nervous system, particularly at anatomical areas thought to be involved with migraine, including the trigeminovascular nociceptive system. In studies, CGRP has been shown to be released during severe migraine attacks, and effective triptan treatment of an attack normalizes these levels. CGRP administration triggers migraine in patients and CGRP ...

Calcitonin gene-related peptide (CGRP) is clearly an anabolic factor in skeletal tissue, but the distribution of CGRP receptor (CGRPR) subtypes in osteoblastic cells is poorly understood. We previously demonstrated that the CGRPR expressed in osteoblastic MG63 cells does not match exactly the known characteristics of the classic subtype 1 receptor (CGRPR1). The aim of the present study was to f...

Levels of calcitonin gene-related peptide (CGRP), a vasodilator peptide present in nerves and airway endocrine cells of the rat respiratory tract, are increased in hypoxic lung and decreased in plasma, suggesting impaired CGRP release. We wanted to determine whether there was an adaptive functional response to reduced CGRP levels in hypoxia. Density of binding sites for CGRP were compared with ...

BACKGROUND Alveolar epithelial cells are known as progenitor cells for the restoration from the damage in the lung. Calcitonin gene-related peptide (CGRP) has been reported to play an important role in the proliferation of various types of epithelial and endothelial cells. We investigated the effects of CGRP on the proliferation of alveolar epithelial cells in vitro and in vivo. METHODS A549 ...

The neuropeptide calcitonin gene-related peptide (CGRP) is expressed by one-third of adult rat lumbar dorsal root ganglion (DRG) neurons, many of which mediate pain sensation or cause vasodilation. The factors that regulate the developmental expression of CGRP are poorly understood. Embryonic DRG neurons initially lack CGRP. When these neurons were stimulated in culture by serum or persistent 5...

Calcitonin gene-related peptide (CGRP) is a potent neuropeptide whose agonist interaction with the CGRP receptor (CGRP-R) in the periphery promotes vasodilation, neurogenic inflammation and trigeminovascular sensory activation. This process is implicated in the cause of migraine headaches, and CGRP-R antagonists in clinical development have proven effective in treating migraine-related pain in ...

8 Calcitonin gene-related peptide (CGRP) is regarded as a key mediator in the 9 generation of primary headaches. CGRP receptor antagonists reduced migraine pain 10 in clinical trials and spinal trigeminal activity in animal experiments. The site of CGRP 11 receptor inhibition causing these effects is debated. Activation and inhibition of CGRP 12 receptors in the trigeminal ganglion may influenc...