Effects of SI and SII electrical stimulation of formalin induced c-Fos expression in the trigeminal nucleus caudalis in the rat

1998 ◽  
Vol 31 ◽  
pp. S198
Author(s):  
Motohide Takemura ◽  
Atsutoshi Tsujio ◽  
Toyomi Shimada ◽  
Yoshio Shigenaga ◽  
Ryotaro Kuroda
Cephalalgia ◽  
1999 ◽  
Vol 19 (10) ◽  
pp. 851-858 ◽  
Author(s):  
S Shepheard ◽  
L Edvinsson ◽  
M Cumberbatch ◽  
D Williamson ◽  
G Mason ◽  
...  

This study investigated whether the selective 5HT1F receptor agonist LY334370 has other possible antimigraine mechanisms in addition to the proposed inhibition of dural plasma extravasation. LY334370 (up to 10−5 M) had no vasoconstrictor effects on human cerebral arteries in vitro. It had no effect (up to 10 mg kg−1, iv) on neurogenic vasodilation of dural blood vessels produced by electrical stimulation of the dura mater in anesthetized rats. Nor had it any effect (at 3 mg kg−1, iv) on the hyperalgesia produced by injection of carrageenan into the paw of conscious rats or on nociceptive reflex responses in the spinalized, decerebrate rabbit (up to 3 mg kg−1, iv), indicating that it has no general analgesic properties. However, it significantly inhibited activation of second-order neurons in the trigeminal nucleus caudalis produced by electrical stimulation of the dura mater in anesthetised rats at 3 mg kg−1, iv. These results provide evidence to suggest that LY334370 has a central mechanism of action in blocking the transmission of nociceptive impulses within the trigeminal nucleus caudalis and that this may represent a mechanism through which it has its antimigraine effect.


1999 ◽  
Vol 127 (3) ◽  
pp. 623-630 ◽  
Author(s):  
Dimos D Mitsikostas ◽  
Margarita Sanchez del Rio ◽  
Christian Waeber ◽  
Zhihong Huang ◽  
F Michael Cutrer ◽  
...  

2001 ◽  
Vol 39 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Nahoko Nagamatsu ◽  
Tetsuya Ikeda ◽  
Ryuji Terayama ◽  
Tadashi Nakamura ◽  
Mikako Koganemaru ◽  
...  

2011 ◽  
Vol 37 (1) ◽  
pp. 84-95 ◽  
Author(s):  
Hsin-Ying Wang ◽  
Yi-Ju Tsai ◽  
Seu-Hwa Chen ◽  
Chi-Te Lin ◽  
June-Horng Lue

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