Relationship between thyroid function and sex hormones in female German shepherd dogs.

ABSTRACT:

Background

Several variables influence the serum concentration of thyroid hormones in dogs, including breed, age, drugs, and concurrent diseases. However, data regarding the interaction between thyroid function and the estrous stage of female dogs are limited.

Hypothesis

Estrous stage may influence thyroid function in German Shepherd dogs.

Methods

Longitudinal, observational, non-randomized cohort study. The dogs were monitored during the complete estrous cycle, and different stages were determined by vaginal cytology. Two blood samples were collected at the beginning and end of each stage to analyze the following: total thyroxine (TT4), free thyroxine (fT4), total triiodothyronine (TT3), free triiodothyronine (fT3), canine thyrotropin (cTSH), progesterone, 17-β-estra

SUBMITTER: Scarpa P 

PROVIDER: S-EPMC10800235 | biostudies-literature | 2024 Jan-Feb

REPOSITORIES: biostudies-literature