Rauchova 2011 Horm Metab Res

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RauchovΓ‘ H, MrΓ‘cek T, NovΓ‘k P, VokurkovΓ‘ M, Soukup T (2010) Glycerol-3-phosphate dehydrogenase expression and oxygen consumption in liver mitochondria of female and male rats with chronic alteration of thyroid status. Horm Metab Res 43:43-7.

Β» PMID:20886417

Rauchova H, Mracek T, Novak P, Vokurkova M, Soukup T (2010) Horm Metab Res

Abstract: In our chronic experiments (over several months), the activity and protein amount of glycerol-3-phosphate dehydrogenase (GPDH) in mitochondria isolated from the liver of adult male and female inbred Lewis strain euthyroid (EU), hyperthyroid (TH), and hypothyroid (HY) rats were analyzed by biochemical and Western blot methods. The TH status was induced by intraperitoneal injections of 3,3',5-triiodo- L-thyronine and the HY status with 0.05% solution of methimazole in drinking water. The TH status led to a significant increase and the HY status to a significant decrease of enzyme activity and protein amount in both male and female animals. These changes were, however, more pronounced in females. The EU and TH female rats also showed a significantly higher activity and the TH female rats showed also a significantly higher enzyme amount in comparison with males, while the HY rats showed low levels in both sexes. The glycerol-3-phosphate-dependent oxygen consumption of freshly isolated rat liver mitochondria from the TH animals was higher in comparison with the EU animals and it was activated by idebenone, a synthetic analogue of coenzyme Q, in both the EU and TH rats. Measurements of serum thyroid hormone levels and analysis of anatomical parameters (relative heart and thyroid gland weights) confirmed that our procedures inducing the TH and HY states are efficient and reliable and that determination of GPDH can serve as an additional criterion for the evaluation of the thyroid hormone status. β€’ Keywords: Chronic administration, Triiodothyronine, Methimazole, Sex difference, Idebenone

β€’ O2k-Network Lab: CZ Prague Houstek J


Organism: Rat  Tissue;cell: Liver  Preparation: Isolated mitochondria 

HRR: Oxygraph-2k 

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