Stanley L Marks

Stanley L Marks

Professor

Medicine & Epidemiology

Office
246 Vet Med II, Davis, CA 95616

Licenses
Diplomate, American College of Veterinary Internal Medicine (Small Animal Internal Medicine)
Diplomate, American College of Veterinary Internal Medicine (Oncology)
Diplomate, American College of Veterinary Internal Medicine (Nutrition)
State Licensure - California
Education
1986, BVSc, University of Pretoria, South Africa, Pretoria, South Africa
1987, Internship, University of Missouri, Columbia, MO
1989, Residency, University of Florida, Gainesville, FL
1991, Residency, University of California, Davis, CA
1996, Residency , University of California, Davis, CA
1996, PhD, University of California, Davis, CA
Honors and Awards
1988-1989 Small Animal Resident of the Year, University of Florida VMTH
1994-1995 Robert Emrie Smith Memorial Research Fellowship
1995-1996 Phi Sigma Gamma Delta Chapter
1997-1998 Mark L. Morris, Distinguished Research Award
1996-1997 Favorite Faculty Teacher Award - Presented by the Class of 1998
1998-1999 Comparative Gastroenterology Society Research Award
1998-1999 Ralston Purina Visiting Professor at the University of Missouri Columbia
1999-2000 Faculty Speaker, Commencement, Class of 2000
2002-2003 Favorite Faculty Teacher Award 2003 - Presented by the Class of 2003
2003-2004 Small Animal Speaker of the Year, North American Veterinary Conference
2003-2004 Faculty Speaker, Commencement, Class of 2004
2004-2005 Favorite Faculty Teacher Award 2005 - Presented by the Class of 2006
2005-2006 Favorite Faculty Teacher Award 2006 - Presented by the Class of 2007
2006-2007 Favorite Faculty Teacher Award 2007 - Presented by the Class of 2008
2006-2007 Faculty Speaker, Commencement, Class of 2007
2007-2008 Faculty Speaker, Commencement, Class of 2008
2008-2009 Favorite Faculty Teacher Award 2009 - Presented by the Class of 2010
2008-2009 Keynote Speaker at Senior Banquet, Class of 2009
2008-2009 Co-author of manuscript that was awarded the Most Commendable Manuscript" prize for 2008; "Oestradiol and genistein reduce food intake in male and female overweight cats after gonadectomy"
2009-2010 Favorite Faculty Teacher Award 2010 - Presented by the Class of 2011
2010-2011 Favorite Faculty Teacher Award 2011 - Presented by the Class of 2012
2010-2011 Recipient of the 2010 UC Davis School of Medicine Dean's Team Award for Excellence for Outstanding Multi-Disciplinary Team Contributions in the Mission Area of Clinical Care (Jan)
2011-2012 Favorite lecturer, Quebec Veterinary Conference, Canada (Apr)
2011-2012 Favorite Faculty Teacher Award 2012 - Presented by the Class of 2013
2011-2012 Certificate of Recognition, Top 5 Article downloaded during 2010 and 2011. Ultrasonographic evaluation of the muscularis propria in cats with diffuse small intestinal lymphoma or inflammatory bowel disease." Zwingenberger AL, Marks SL, Baker TW, Moore PF (Jun)
2012-2013 Certificate of Recognition, Top 5 Article downloaded during 2011 and 2012. ACVIM Consensus Statement: Enteropathogenic bacteria in dogs and cats: diagnosis, epidemiology, treatment, and control." Marks SL, Rankin SC, Byrne BA, Weese JS (Nov/Dec)
2014-2015 Awarded 1st prize for the best overall research poster presented at the World Small Animal Veterinary Association (WSAVA) Conference in Cape Town, South Africa from September 16-19. Marks SL. Effect of the probiotic enterococcus faecium SF 68 on presence of diarrhea in weanling kittens.
2018-2019 Established the innovative Center for Deglutology and Digestion on the UC Davis Campus with Dr. Peter Belafsky
2022 Recipient of the 2022 AVMA Career Achievement in Canine Research Award.
Most Recent Five Book Chapters
2025 Munro M, Marks SL: Chapter 145, Esophageal Motility Disorders: Diagnosis and Management, Scansen BA, Bonagura JD, (ed), Kirk and Bonagura's Current Veterinary Therapy XVI, St. Louis, MO. .
2024 Marks SL: Pharyngeal and Esophageal Disorders, Coté E, Ettinger SJ, Feldman EC, (Eds), (ed), Ettinger's Textbook of Veterinary Internal Medicine, 9th Edition, St. Louis, MO. .
2024 Marks SL, Kathrani A: Chapter 13, Nutritional Management of Hepatobiliary Diseases, Fascetti AJ, Delaney SJ, Larsen JA, Villaverde C, (ed), Applied Veterinary Clinical Nutrition, Second Edition, Ames, IA. 319-344.
2023 Sykes JE, Marsilio S, Marks SL: Chapter 126, Hepatobiliary Infections, Sykes JE, (ed), Greene's Infectious Diseases of the Dog and Cat, 5th Edition, St. Louis, MO. 1660-1668.
2023 Sykes JE, Balsa I, Culp WTN, Arzi B, Marsilio S, Marks SL: Chapter 125, Gastrointestinal and Intra-Abdominal Infections, Sykes JE, (ed), Greene's Infectious Diseases of the Dog and Cat, 5th Edition, St. Louis, MO. 1640-1659.
Research Focus
Small Animal Gastroenterology. 1) Assessment and management of canine dysphagia (swallowing disorders). 2) Diagnosis and management of chronic enteropathies (intestinal disorders) in dogs and cats.
Specialty Focus
Small Animal Gastroenterology. Emphasis on 1) dysphagia (swallowing disorders) and esophageal disease. 2) Chronic enteropathies (intestinal disorders) of dogs and cats with emphasis on infectious enteropathies.
Ten Recent Publications

2026
Olmeda P, Rey C, Rodríguez-Franco F, Marks SL, García-Sancho M, Díaz-Regañón D, Villaescusa A, Sainz A
Evaluation of Veterinary Prescription of Gastroprotectants in Dogs in Spain

2025
Clark JH, Hussain Z, Akst L, Marks SL, Belafsky PC
Histamine 2-receptor antagonists tachyphylaxis: A scoping review

2025
Farrell M, Singh A, Mayhew PD, Hawker W, Collier A, Appleby R, Sanchez A, Bersenas A, Ullal TV, Marks SL, Chohan A, Brinkley A
Folded-flap palatoplasty and traditional staphylectomy yield similar postoperative soft palate geometry in French Bulldogs undergoing airway surgery

2025
Gibson EA, Culp WTN, Hardy BT, Giuffrida MA, Balsa IM, Mayhew P, Marks SL
Subclinical gastrointestinal mucosal lesions occur in dogs with intrahepatic portosystemic shunts independent of percutaneous transvenous coil embolization

2024
Marks SL, Ullal TV
Rational approach and dietary considerations for managing dogs with swallowing impairment (Dysphagia)

2024
Sainz Á, García-Sancho M, Villaescusa A, Rodríguez-Franco F, Díaz-Regañón D, Olmeda P, Marks SL
Prevalence and appropriateness of omeprazole prescription in dogs at a veterinary teaching hospital before and after the publication of the ACVIM consensus statement on the rational administration of gastrointestinal protectants.

2024
Reynolds RM, Marks SL, Guo LT, Shelton GD, Graham KJ
Feline dystrophin-deficient muscular dystrophy misdiagnosed as Toxoplasma myositis.

2024
Ullal TV, Marks SL, Yang NT, Taylor SL
Evaluating acidic gastroesophageal reflux with wireless pH monitoring in French bulldogs with sliding hiatal herniation.

2023
Fingerhood S, Mendonça FS, Uzal FA, Marks SL, Vernau KM, Navarro MA, Choi EA
Tyzzer disease in 19 preweaned orphaned kittens

2023
Ullal TV, Marks SL, Evenhuis JV, Figueroa ME, Pomerantz LK, Forsythe LR
Evaluation of gastroprotectant administration in hospitalized cats in a tertiary referral hospital.