Phosphorylation of ERK1/2 in Dorsal Root Ganglia following Sequential Mustard Oil and Thermal Stimulation of the Rat Hind Paw

Pharmacology ◽  
2012 ◽  
Vol 89 (1-2) ◽  
pp. 7-12 ◽  
Author(s):  
Josef Donnerer ◽  
Ingrid Liebmann
Pain Practice ◽  
2014 ◽  
Vol 15 (3) ◽  
pp. 208-216 ◽  
Author(s):  
Jean-Pierre Van Buyten ◽  
Iris Smet ◽  
Liong Liem ◽  
Marc Russo ◽  
Frank Huygen

Development ◽  
1987 ◽  
Vol 99 (2) ◽  
pp. 173-186
Author(s):  
B.L. Tomlinson ◽  
R.A. Tassava

Amphibian forelimb regeneration is a nerve-dependent process; nerves presumably release one or more neurotrophic factors that stimulate blastema cell division. To date several candidate molecules/factors have been shown to stimulate macromolecular synthesis and/or mitosis but sustained cell cycle activity and blastema development have not been achieved. Because dorsal root ganglia (DRG) implants are capable of promoting regeneration of denervated adult newt limbs (Kamrin & Singer, 1959), we have evaluated the DRG stimulation of regeneration in denervated limbs of adult newts and larval axolotls; two alternative timing strategies were tested as a step toward defining bioassay parameters that best reflect neurotrophic activity. The frequency of regeneration in denervated adult newt limbs was compared after providing DRG before or at the time of denervation (to maintain neurotrophic and cell cycle activity) versus DRG implantation at various postdenervation times (to resupply neurotrophic activity and restimulate suppressed cell cycle activity). The results show that denervated adult newt limbs regenerated most frequently using the maintenance strategy, but as the denervation interval was extended in the restimulation strategy, the frequency of regeneration declined. Larval axolotl limbs responded positively in both maintenance and restimulation DRG-grafting protocols. These results suggest that the efficacy of DRG stimulation of regeneration in adult newts was related to the relative number of blastema cells present at the time of denervation and the proliferative status of the blastema cells; bioassays with denervated adult newt limbs should be designed with these constraints in mind. Because such constraints are not as problematic with the larval axolotl, this species may provide the best opportunity for further defining bioassay parameters related to the neurotrophic stimulation of regeneration.


Spine ◽  
1987 ◽  
Vol 12 (6) ◽  
pp. 552-555 ◽  
Author(s):  
MARIE A. BADALAMENTE ◽  
ROGER DEE ◽  
RICHARD GHILLANI ◽  
PU-FAN CHIEN ◽  
KENNEDY DANIELS

Pain Practice ◽  
2017 ◽  
Vol 18 (2) ◽  
pp. 205-213 ◽  
Author(s):  
Frank Huygen ◽  
Liong Liem ◽  
William Cusack ◽  
Jeffery Kramer

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Duiyin Jin ◽  
Yanan Liu ◽  
Siyi Lv ◽  
Qin Qi ◽  
Mei Li ◽  
...  

Objective. To evaluate the effects of electroacupuncture and moxibustion on brain-derived neurotrophic factor (BDNF) and its receptor tyrosine kinase receptor B (TrkB) protein and mRNA expressions in the colon and dorsal root ganglia of IBS rats with visceral hypersensitivity and to explore their underlying therapeutic mechanisms. Method. Forty Sprague Dawley rats were randomly divided into normal, model, model + mild moxibustion (MM), model + electroacupuncture (EA), and model + pinaverium bromide (PB) groups, with eight rats in each group. Chronic visceral hypersensitive IBS rat models were established by colorectal distension (CRD) with mustard oil clyster. Rats in the MM and EA groups, respectively, received moxibustion and electroacupuncture treatments on the Tianshu (ST25) and Shangjuxu (ST37) acupoints once daily for 7 days, and rats in the PB group received pinaverium bromide by oral gavage once daily for 7 consecutive days. After treatment, rats underwent abdominal withdrawal reflex (AWR) scoring under CRD and colon histopathological examination. Immunohistochemistry and real-time quantitative PCR (RT-qPCR) were used to study the protein and mRNA expressions of BDNF and TrkB in the rat colon and dorsal root ganglia. Results. Compared with the normal group, AWR scores and body weight were clearly increased in the model group rats (both P < 0.01 ). The body weights were significantly elevated ( P < 0.01 , P < 0.05 ), but the AWR scores were reduced ( P < 0.05 , P < 0.01 ), after electroacupuncture and mild moxibustion treatment. Compared with levels in normal rats, BDNF and TrkB protein and mRNA expressions were significantly elevated in the IBS model rats ( P < 0.01 ) but were downregulated after mild moxibustion, electroacupuncture, and Western medicine treatment ( P < 0.01 ). Conclusion. Electroacupuncture and moxibustion improved visceral hypersensitivity of IBS rats possibly by reducing BDNF and TrkB protein and mRNA expressions in the colon and dorsal root ganglia.


2004 ◽  
Vol 361 (1-3) ◽  
pp. 32-35 ◽  
Author(s):  
S. Papadopolou ◽  
P. Hartmann ◽  
K.S. Lips ◽  
W. Kummer ◽  
R.V. Haberberger

Spine ◽  
1990 ◽  
Vol 15 (12) ◽  
pp. 1252-1256 ◽  
Author(s):  
A. PEDRINI-MILLE ◽  
J. N. WEINSTEIN ◽  
E. M. FOUND ◽  
C. B. CHUNG ◽  
V. K. GOEL

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