Index

Introduction
Homeostasis
Life Span
Systems
Regulatory Functions
Nervous System
Eyes
Ears
Nose
Tongue
Brain
Endocrine System
Hypothalmus
Pituitary
Thyroid
Adrenal
Nutritional Functions
Excretary Functions
Urinary System
Kidney
Bladder
Colon
Distributive Functions
Cardiovascular System
Blood
Respiratory System
Protective Functions
Reproductive Functions
Musculo-Skeletal System
Cancer
Arthritis
Obesity
Diabetes
Cushing's Disease
Heart Disease
Teeth
Skin and Coat
Conclusion
References


Arm Your Dog Against The Effects Of Aging
Cushing's Disease

This is a common endocrine disorder associated with an overproduction of corticotropin by the pituitary gland, which in turns stimulates overproduction of cortisol by the adrenal cortex. -Hyperadrenocorticism or Cushing's syndrome in dogs may be caused by a pituitary tumor or an adrenal lesion. Eighty-five percent of dogs with Cushing's have a pituitary-dependent disease, and about 15 percent have adrenal tumors.35

Adrenal tumors are seen more frequently in large breeds and three times more frequently in females than in males. The mean age at onset is 8-12 years, and Poodles, Boxers, Boston Terriers, Dachshunds, Beagles and various Terriers are particularly susceptible.36

Cushing's is characterized by abnormally high blood glucose, general weakness, thin and wrinkled skin, muscle wasting, hair loss, hypertension and decreased resistance to infection. Treatments for pituitary dependent hyperadrenocorticism are cobalt radiation and/or surgery for tumors.

Occasionally dogs may be kept alive for as long as three years with nonsurgical medical treatment.

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