I can recommend Bogomoletz Institute of Physiology in Kyiv, Ukraine.

Especially labs of prof. Oleg Krishtal (https://www.researchgate.net/profile/Oleg_Krishtal2), prof. Pavel Belan (https://www.researchgate.net/profile/Pavel_Belan), prof. Nana Voitenko (https://www.researchgate.net/profile/Nana_Voitenko). These labs works with DRG neurons (cultured and acute dissociated) and lab of prof. Voitenko also makes patch-clamp recordings from whole spinal cord. I think it is close to your task.

http://biph.kiev.ua/en/Main_Page

I suggest an institute in Jena Germany. It is Institute of  Biophysics and biochemistry. Prof Dr Stefan Heinnman may help you.

Prof. Dr. Stefan H. Heinemann

Institute for Molecular Cell Biology

School of Medicine

Institute of Biochemistry and Biophysics

Dept. Biophysics

School for Biology and Pharmacy

http://www.biophysik.uni-jena.de/

You can communicated with the Prof. Dra. García-Villegas, she is from Mexico, but has a lot experience in DRG neurons, she can help you.

Dra. Ma. del Refugio García Villegas

Profesor Titular

Departamento de Fisiología Biofísica y Neurociencias

Centro de Investigación y Estudios Avanzados del IPN,

Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Del. GAM C.P. 07360 México D.F.

Teléfono 5747 3800 (Oficina 5101 Lab. 5102), Fax 5747 3800 ext 5713

Email: [email protected]

http://www.fisio.cinvestav.mx/academicos/refugio/index.html

Hi Charles,

The lab of Dr Patrick Delmas in Marseille works on DRG neurons and has a very strong experience in cellular physiology and ion channels biophysics.

http://crn2m.univ-mrs.fr/recherche/equipe-p-delmas/

Thanks everyone,

I have found somebody that might be able to help me with the training or to put me in contact with. I really appreciate your feedback and I will keep it in mind.

Have a good day all.

Charles

You may contact Neurosolutions in UK. Link attached.

http://www.neurosolutionsltd.com/

I'm glad you found somebody. Carlos Belmonte and Juan Lerma at University of Alicante in Spain work with DRG.

How do you get pass the satellite glial cell if you don't dissociate the DRG?

Hi Juan,

I have managed to record some TRPA1 current but my method does not seems to be optimal. I have not figure out how to do it in a reproducible manner, however  Xu et al., 1997 PNAS managed to do so in intact DRG without the use of enzymes and without dissociation. The other paper that I have followed was Zhang et al., 1997, in this one , Authors do use some collagenase to break into it.

The goal is to practice the in vitro recording in "intact" DRG in order to move to in vivo DRG Ma et al., 2010.

I do agree satellite cells are an an issue but I am sure i will get over it.

Thank you all for all the tips

Charles 

You have any specific technical issue?