Autoimmune Diseases

Autoimmunity, General

  • Bearded Collies and autoimmune disease.  Linda Aronson, DVM. Presenting signs, tests and treatment. It details both the signs of 10 autoimmune diseases and the tests used to make a diagnosis. This is helpful for understanding tests which your veterinarian may order on your dog to establish a diagnosis.
  • Stress, drugs, and immunity.  Linda Aronson, DVM, p 7
  • What’s up doc?  Linda Aronson, DVM.  Beardie Bulletin, August 1996.  Common and uncommon presentations (physical findings) of autoimmune diseases in Bearded Collies.
  • NEW. Immunosuppression Protocol.  Linda Aronson, DVM.  2019

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Addison’s Disease

  • NEW Research Publication. DLA class II risk haplotypes for autoimmune diseases in the Bearded Collie offer insight to autoimmunity signatures across dog breeds.  Gershony, et.al. Canine Genetics and Epidemology, 2019.
  • NEW Research Publication.  Genetic Characterization of Addison’s Disease in Bearded Collies.  Gershony, et.al.  BMC Genonmics, 2020
  • NEW. A Retrospective Study of Dogs with Atypical Hypoadrenocorticism:  A Diagnostic Cut-off or Continuum?  (2017).   49 dogs had glucocorticoids deficiency and normal sodium:potassium ratios at the time of diagnosis. They were classified as having “atypical hypoadrenocorticism”.  The gold standard for diagnosis of hypoadrenocorticism is the adrenocorticotropic hormone (ACTH) stimulation test. A post-ACTH stimulation cortisol level less than 55 nmol/L is consistent with the diagnosis.  40 dogs (group 1) had normal sodium:potassium ratios and low post-ACTH stim cortisol levels; 38 had hypoalbuminemia and/or hypocholesterolemia.  Those findings support the recommendation that dogs with gastrointestinal signs and either hypoalbuminaemia, hypo-cholesterolaemia or both, be screened for hypoadrenocorticism with a baseline cortisol concentration as a minimum.  Nearly all dogs in group I showed improvement on glucocorticoid treatment; 14% of the group developed mineralocorticoid deficiency at a variable time after initial diagnosis.  Periodic monitoring should still be considered even years following diagnosis.  Group 2 (9 dogs) had post-ACTH stim cortisol levels above 55 nmol/L but below reference normal for the lab.  Their presumptive diagnosis with hypo-adrenocorticism was by a small animal internist or resident, based on clinical presentation, absence of another diagnosis to explain the signs, and equivocal ACTH stimulation test results.
  • NEW.  Addison’s case study articles from BeaCon’s newsletters

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Arthritis

Autoimmune Hemolytic Anemia (AIHA)

Symmetrical Lupoid Onychodystrophy (SLO)

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Autoimmune hypothyroidism

  • NEW
    • What Is Hypothyroidism?  OFA article on thyroid status based on OFA thyroid panel testing:  normal, equivocal, autoimmune thyroiditis, idiopathic reduced thyroid function.  Autoimmune thyroiditis is the most common cause of primary hypothyroidism in dogs. The disease has variable onset, but tends to clinically manifest itself at 2 to 5 years of age. Dogs may be clinically normal for years, only to become hypothyroid at a later date. The marker for autoimmune thyroiditis, thyroglobulin autoantibody formation, usually occurs prior to the occurrence of clinical signs. Therefore, periodic retesting is recommended.
    • OFA Thyroid testing
      • CHIC certification – # 345
      • Breed OFA statistics (Jan 2023) – 1,162 tests (ranks 98)
        • Normal – # 1022 (88%)
        • Autoimmune – # 10 (0.9%)
        • Idiopathic – # 6 (0.5%)
        • Equivocal – # 124 (10.7%)

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Systemic Lupus Erythematosus (SLE)

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