Nat T. Messer
Associate Professor - Equine Medicine and Surgery

· BS (Microbiology), Colorado State University, Fort Collins, CO
· DVM (Veterinary Medicine), Colorado State University, Fort Collins, CO

· Diplomate, American Board of Veterinary Practitioners (ABVP)

MesserN@missouri.edu

Research emphasis:

The principal focus of my research efforts has been directed toward investigations of equine endocrine function and dysfunction, particularly factors affecting equine thyroid function. I have also collaborated with Dr. Philip Johnson on projects investigating equine pituitary dysfunction and equine peripheral Cushingoid syndrome. In addition, I have been and continue to be involved in studies with Dr. Johnson investigating the pathophysiology of equine laminitis as a secondary area of research interest for me that integrates very well with our research into equine endocrine disease.

Teaching:   Equine Medicine and Surgery; Equine Laminitis; Equine Dermatology; Equine Endocrine Disease; Equine Respiratory Tract Disease; Equine Neonatal Disease, Equine Dental Disease


Selected publications:

Keegan KG, Messer NT, Reed SK, Wilson DA, Kramer J.  Effectiveness of administration of phenylbutazone alone or concurrent administration of phenylbutazone and flunixin meglumine to alleviate lameness in horses.  Am J Vet Res. 2008; 69(2):167-73.  [Abstract]

Messer NT, Johnson PJ.  Evidence-based literature pertaining to thyroid dysfunction and Cushing's syndrome in the horse.  Vet Clin North Am Equine Pract. 2007; 23(2):329-64. Review.  [Abstract]

Buff PR, Messer NT, Cogswell AM, Wilson DA, Johnson PJ, Keisler DH, Ganjam VK.  Induction of pulsatile secretion of leptin in horses following thyroidectomy.  J Endocrinol. 2007; 192(2):353-59.  [Abstract]

Buff PR, Messer NT, Cogswell AM, Johnson PJ, Keisler DH, Ganjam VK.  Seasonal and pulsatile dynamics of thyrotropin and leptin in mares maintained under a constant energy balance.  Domest Anim Endocrinol. 2007; 33(4):430-36.  [Abstract]

Reed SK, Messer NT, Tessman RK, Keegan KG.  Effects of phenylbutazone alone or in combination with flunixin meglumine on blood protein concentrations in horses.  Am J Vet Res. 2006; 67(3):398-402.  [Abstract]

Janicek JC, Kramer J, Coates JR, Lattimer JC, Lacarrubba AM, Messer NT.  Intracranial abscess caused by Rhodococcus equi infection in a foal.  J Am Vet Med Assoc. 2006; 228(2):251-53.  [Abstract]

Johnson PJ, Scotty NC, Wiedmeyer C, Messer NT, Kreeger JM.  Diabetes mellitus in a domesticated Spanish mustang.  J Am Vet Med Assoc. 2005; 226(4):584-88, 542.  [Abstract]

Johnson PJ, Messer NT, Ganjam VK.  Cushing's syndromes, insulin resistance and endocrinopathic laminitis.  Equine Vet J. 2004; 36(3):194-98. [No abstract available].

Scotty NC, Ford M, Williams F 3rd, Loiacono C, Johnson PJ, Messer NT, Turnquist SE, Essman S.  Exophthalmia associated with paranasal sinus osteoma in a Quarterhorse mare.  J Vet Diagn Invest. 2004; 16(2):155-60.  [Abstract]

Johnson PJ, Ganjam VK, Slight SH, Kreeger JM, Messer NT.  Tissue-specific dysregulation of cortisol metabolism in equine laminitis.  Equine Vet J. 2004; 36(1):41-45.  [Abstract]

Johnson PJ, Messer NT, Ganjam VK, Thompson DL Jr, Refsal KR, Loch WE, Ellersieck MR.  Effects of propylthiouracil and bromocryptine on serum concentrations of thyrotrophin and thyroid hormones in normal female horses.  Equine Vet J. 2003; 35(3):296-301.  [Abstract]

Frank N, Sojka J, Messer NT.  Equine Thyroid Dysfunction.  In:  Vet Clin North Am Equine Pract  2002; 18(2):305-19.  [Abstract] 

Messer NT.  Thyroid Dysfunction.   In:  Robinson NE (ed):  Current Therapy in Equine Medicine 5th ed. Philadelphia, WB Saunders Co, 2002.

Johnson PJ, Kreeger JM, Keeler M, Ganjam VK, Messer NT.  Serum markers of lamellar basement membrane degradation and lamellar histopathological changes in horses affected with laminitis.  Equine Vet J 2000; 32(6): 462-68.  [Abstract]

Messer NT. Acute Hepatitis in Horses.  In: Smith BP (ed): Large Animal Internal Medicine 3rd edition. St. Louis, Mosby, 2000.

Katwa LC, Johnson PJ, Ganjam VK, Kreeger JM, Messer NT. Expression of endothelin in equine laminitis. EVJ 1999; 31: 243-47.  [Abstract]

Johnson PJ, Tyagi SC, Katwa LC, Ganjam VK, Moore LA, Kreeger JM, Messer NT. Activation of extracellular matrix metalloproteinases in equine laminitis. Vet Rec 1998; 142: 392-96.  [Abstract]

Messer NT. Equine Thyroid Dysfunction.  In:  Robinson NE (ed): Current Therapy in Equine Medicine 4th ed. Philadelphia, WB Saunders Co, 1997.

Messer NT, Ganjam VK, Nachreiner RF, Krause GF.  Effect of dexamethasone administration on serum thyroid hormone concentrations in clinically normal horses. J Am Vet Med Assoc 1995; 206(1):63-66.  [Abstract]

Messer NT, Johnson PJ, Refsal K, Nachreiner RF, Ganjam VK, Krause GF.  Effects of food deprivation on serum iodothyronine and cortisol concentrations in healthy, adult horses.  Am J Vet Res1995; 56(1):116-21.  [Abstract]

Messer NT. The use of laboratory tests in equine practice.  In: Vet Clin North Am Equine Pract 1995, 11(3):345-50. [Abstract]

Messer NT, Johnson PJ.  Serum hepatitis in two broodmares.  J Am Vet Med Assoc 1994; 204(11):1790-92.  [Abstract]

Messer NT, Johnson PJ.  Idiopathic acute hepatic disease in horses: 12 cases (1982-1992).  J Am Vet Med Assoc 1994; 204(12):1934-37.  [Abstract]

Messer NT, Arnold K.  Immune-mediated hemolytic anemia in a horse.  J Am Vet Med Assoc 1991; 198(8):1415-16.  [Abstract]

Messer NT.  The Use of Biologics in the Prevention of Equine Infectious Diseases.   In:  Smith BP (ed): Large Animal Internal Medicine 1st ed. Mosby, 1990, 1478-81.

Messer NT, Beeman GM.  Distention Colic.  In:  Robinson NE (ed):  Current Therapy in Equine Medicine 2nd ed. Philadelphia, WB Saunders Co, 1987, 58-59.

Sullins KE, Messer NT, Nelson L.  Serum concentrations of penicillin in the horse after repeated intramuscular injections of procaine penicillin G alone or in combination with benzathine penicillin and/or phenylbutazone.  Am J Vet Res 1984; 45(5):1003-07.  [Abstract]

Knight AP, Messer NT. Vesicular stomatitis. Compend on Cont Ed Prac Vet 1983; 5(10): 517-22.  

Messer NT, Powers BE, Snyder SP. Hypertrophic osteopathy associated with pulmonary infarction in a horse. Compend on Cont Ed Prac Vet 1983; 5(12):636-641.

Messer NT, Knight AP. Pemphigus foliaceus in a horse. J Am Vet Med Assoc 1982;180(8):938-40.  [Abstract]

Messer NT.  Tibiotarsal effusions associated with chronic zinc intoxication in three horses. J Am Vet Med Assoc 1981; 178(3):294-97.  [Abstract]