Adrenal glucocorticoid secretion is regulated by adrenocorticotropic hormone (ACTH) acting through a specific cell membrane receptor (ACTH-R).The ACTH-R is a member of the G protein superfamily-coupled receptors and belongs to the subfamily of melanocortin receptors.The ACTH-R is mainly expressed in the adrenocortical cells showing a restricted tis

This paper presents a brief review on regularization methods and shows that the combination of two techniques could preserve symmetries in all orders of the TopSellers Perturbation Theory.We will see, with two simple examples in the one-loop-order, what a regularization method needs to preserve symmetries.Furthermore, it will be shown that the prob