Altered gene expression signatures by calcitonin gene‐related peptide promoted mast cell activity in the colon of stress‐induced visceral hyperalgesia mice

Author(s):  
Hanliang Sun ◽  
Yanhan Ma ◽  
Shuhong An ◽  
Zhaojin Wang
2001 ◽  
Vol 13 (3) ◽  
pp. 229-236 ◽  
Author(s):  
J. M. Gschossmann ◽  
S. V. Coutinho ◽  
J. C. Miller ◽  
K. Huebel ◽  
B. Naliboff ◽  
...  

2000 ◽  
Vol 118 (4) ◽  
pp. A1103
Author(s):  
Kousaku Kawashima ◽  
Shunji Ishihara ◽  
Nobuyuki Moriyama ◽  
Hiroshi Suetsugu ◽  
Hideaki Kazumori ◽  
...  

1997 ◽  
Vol 273 (1) ◽  
pp. G191-G196 ◽  
Author(s):  
V. Plourde ◽  
S. St-Pierre ◽  
R. Quirion

The role of calcitonin gene-related peptide (CGRP) on colorectal distension-induced visceral pain was investigated in conscious rats. Intracolonic administration of acetic acid (0.6%) resulted in a significantly increased number of abdominal contractions in response to colorectal balloon distension from 5.8 +/- 1.2 in controls to 16.6 +/- 1.0 in acetic acid-treated animals (P < 0.05), evidencing sensitization of visceral afferent pathways and subsequently visceral hyperalgesia. This sensitization phenomenon was not observed in animals previously treated with systemic capsaicin. Likewise, in animals not treated with capsaicin, use of an intravenous antagonist for CGRP [human CGRP-(8-37)], completely reversed the sensitizing effects of acetic acid. Furthermore, intravenous administration of CGRP dose dependently increased the number of abdominal contractions in response to colorectal distension from 3.0 +/- 1.1 (CGRP 250 ng) to 17.0 +/- 1.2 (CGRP 500 ng, P < 0.05), as previously observed in acetic acid-treated animals. Finally, intrathecal administration of hCGRP-(8–37) (mid-lumbar) also resulted in a total dose-dependent reversal of CGRP (500 ng) or acetic acid-induced visceral hypersensitivity. These results demonstrate that CGRP plays a major role in this model of visceral afferent nerve sensitization from gastrointestinal origin.


1998 ◽  
Vol 73 (2) ◽  
pp. 75-82 ◽  
Author(s):  
Jiayuan Ren ◽  
S.Terence Dunn ◽  
Yanfeng Tang ◽  
Youping Wang ◽  
Jiesheng Gao ◽  
...  

1998 ◽  
Vol 114 ◽  
pp. A757 ◽  
Author(s):  
JM Gschossmann ◽  
JC Miller ◽  
V Plourde ◽  
HC Wong ◽  
JH Walsh ◽  
...  

2004 ◽  
Vol 27 (6) ◽  
pp. 896-898 ◽  
Author(s):  
Yuki Kitabatake ◽  
Shunsuke Kawamura ◽  
Masamichi Yamashita ◽  
Kaori Okuyama ◽  
Motoaki Takayanagi ◽  
...  

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