TG and hypothyroidism: Another thyroid autotransplantation study on guinea pigs with thyroidectomy was conducted by Karaman et al. in 2012 without signs of post-surgical hypothyroidism: one month after the operation, he recorded low levels of thyroid hormone and high levels of TSH, while towards the eighth week, the values reversed with low TSH levels and normal thyroid hormone levels, with functional recovery of the organ [43].