Dr. Hugo Eiler was born in Chile. He attended The University of Chile where he
received his DVM (Medico Veterinario) degree in 1960. His DVM thesis was in the area of
blood-pressure regulation. During 1962 he received a Fellowship from the International
Atomic Energy Agency/F.A.O to study radiation biology at The University of Cornell,
Ithaca. In 1974, he received his M.S. degree at the University of Georgia, Athens, and in
1976 he received a Ph.D. degree at the University of Illinois, Urbana. His graduate
studies were in the areas of endocrinology and reproductive physiology. After completing
his DVM degree in 1960, he became an assistant professor at The Institute of Physiology,
School of Human Medicine, The University of Chile. He taught physiology to veterinary,
human medicine, and nursing students. He owned a small-animal hospital and practiced
small-animal medicine, part time, for several years. 

Scientific Activities Dr. Eiler has published over 80 scientific articles in the areas of
reproductive physiology and clinical endocrinology. He and his collaborators developed:
(1) a new hypothesis on the mechanism of parturition and retained placenta, including a
new treatment (collagenase)in the bovine (in Large Animal Theriogenology, Youngquist and
Threlfall, ed. 2007); (2) Concept and techniques for the: (a) combined dexamethasone
suppression/ACTH stimulation test in dogs with Cushing's disease (Am. J. Vet. Res.
41:1243-1246, 1980; J.Am.Vet Assoc. 185:289-294, 1984); (b) combined dexamethasone
suppression/TRH stimulation test in horses, for the diagnosis of pars intermedia
pituitary adenoma (JAVMA 211:79-81, 1997); (c) combined glucose/insulin test in horses
for evaluation of glucose homeostasis (AJVR 66:1598-1604, 2005). 

Some significant peer-reviewed publications 

Selected Articles


Effect of combined lignan phytoestrogen and melatonin treatment on secretion of steroid hormones by adrenal carcinoma cells (with Kellie Fecteau and Jack Oliver), American Journal of Veterinary Research (2011)

To investigate the in vitro effect of the combination of lignan enterolactone (ENL) or lignan...



Evaluation of the combined dexamethasone suppression/thyrotropin-releasing hormone stimulation test for detection of pars intermedia pituitary adenomas in horses (with Nicholas Frank, Frank M. Andrews, Carla S. Sommardahl, Barton W. Rohrbach Dr., and Robert L. Donnell), Journal of Veterinary Internal Medicine (2006)

Background: A combined dexamethasone (DEX) suppression/thyrotropin-releasing hormone (TRH) test (DEX/TRH test) has been developed to...



Physiologic assessment of blood glucose homeostasis via combined intravenous glucose and insulin testing in horses (with Nicholas Frank, Frank M. Andrews, Jack Oliver, and Kellie Fecteau), American Journal of Veterinary Research (2005)

Objective - To characterize the physiologic response to IV bolus injection of glucose and insulin...



Inhibition of collagenase breakdown of equine corneas by tetanus antitoxin, equine serum and acetylcysteine (with Kellie Fecteau and J C. Haffner), Veterinary Ophthalmology (2003)

OBJECTIVE: To determine whether tetanus antitoxin, equine serum, and acetylcysteine, which are currently used in...



Placenta detachment: unexpected high concentrations of 5-hydroxytryptamine (serotonin) in fetal blood and its mitogenic effect on placental cells in bovine (with Kellie Fecteau), Placenta (2001)

The purpose of this study was twofold: (1) to determine whether there is a profile...


Contributions to Books

Retained Placenta (with Kellie Fecteau), Current Therapy in Large Animal Theriogenology (2007)

Endocrine Glands, Dukes’ Physiology of Domestic Animals (2004)

Retained Placenta, Current Therapy in Large Animal Theriogenology (1997)


United States Patent