T	Testosterone
DHT	Dihydrotestosterone
DHEA-S	Dehydroepiandrosterone sulfate
A	Androstendione
E2	Estrogen
PRL	Prolactin
IGF-1	Insulin-like growth factor
TGF-beta	Transforming growth factor-beta
17 beta-HSD	17β-Hydroxysteroid dehydrogenase
E2	Estradiol
LH	Luteinizing hormone
PRL-R	Prolactin receptors
HFs	Human hair follicles
IFNγ	Interferon gamma
TNFα	Tumor necrosis factor alpha
TRH	Thyrotropin-releasing hormone
TSH	Thyroid-stimulating hormone
T4	Thyroxine
T3	Triiodothyronine
ATP	Adenosine triphosphate
HPT axis	Hypothalamic-pituitary-thyroid axis
CRH	Corticotropin-releasing hormone
HPA axis	Hypothalamic-pituitary-adrenal axis
POMC	Pro-opiomelanocortin
ACTH	Adrenocorticotropic hormone
HCC	Hair cortisol concentration
TGF-beta2	Transforming growth factor-beta 2
GAL	Galanin
PCOS	Polycystic ovary syndrome
FPHL	Female pattern hair loss
PPTE	Postpartum telogen effluvium
SHBG	Sex hormone binding globulin