TY - JOUR
T1 - Thyroid hormones modify susceptibility to lidocaine-kindling in rats
AU - Pacheco-Rosado, Jorge
AU - Zamudio-Hernández, Sergio
AU - Chambert, Guillermo
N1 - Funding Information:
The authors are fellows of DEDICT-COFAA-IPN. This work was partially supported by DEPI-IPN.
PY - 2001/10/19
Y1 - 2001/10/19
N2 - Lidocaine, a local anesthetic, produces seizures by unknown central mechanisms. The objective of this study was to investigate the effect of cellular metabolism alteration, by changing thyroid hormones levels, on susceptibility to lidocaine-kindling. Lidocaine was administered daily (60 mg/Kg·day, i.p.) to rats treated with thyroxine (300 μg/Kg·day) or methimazole (60 mg/Kg·day), dissolved in drinking water. After the 18th lidocaine administration, the cumulative percent of animals convulsed was higher (100%) for the methimazole-treated group and lower (20%) for the thyroxine-treated group, compared to the control group (40%). The results suggest that susceptibility to lidocaine-kindling depends on neuronal metabolism, which probably affects monoamines uptake mechanisms.
AB - Lidocaine, a local anesthetic, produces seizures by unknown central mechanisms. The objective of this study was to investigate the effect of cellular metabolism alteration, by changing thyroid hormones levels, on susceptibility to lidocaine-kindling. Lidocaine was administered daily (60 mg/Kg·day, i.p.) to rats treated with thyroxine (300 μg/Kg·day) or methimazole (60 mg/Kg·day), dissolved in drinking water. After the 18th lidocaine administration, the cumulative percent of animals convulsed was higher (100%) for the methimazole-treated group and lower (20%) for the thyroxine-treated group, compared to the control group (40%). The results suggest that susceptibility to lidocaine-kindling depends on neuronal metabolism, which probably affects monoamines uptake mechanisms.
KW - Chemical kindling
KW - Hypothyroidism
KW - Lidocaine
KW - Seizures
UR - http://www.scopus.com/inward/record.url?scp=0035914203&partnerID=8YFLogxK
U2 - 10.1016/S0024-3205(01)01334-0
DO - 10.1016/S0024-3205(01)01334-0
M3 - Artículo
SN - 0024-3205
VL - 69
SP - 2575
EP - 2582
JO - Life Sciences
JF - Life Sciences
IS - 22
ER -