Hair Loss Due to Lack of Growth Hormone in Dogs
Growth Hormone-Responsive Dermatoses in Dogs
Dermatosis, or skin diseases, due to a deficiency of growth hormones are uncommon in dogs. However, there are two types of dermatosis that affect canines: pituitary dwarfism (seen at two to three months of age) and adult-onset hormone-responsive dermatosis (skin disease usually seen at one to two years of age).
Pituitary dwarfism is most often seen in German Shepherds, but has also been reported in Spitzes, Toy Pinschers, and Carnelian Bear Dogs. Adult-onset hormone-responsive dermatosis has been reported in Chow Chows, Pomeranians, Poodles, Keeshonds, Samoyeds, and American Water Spaniels. Though this mostly affects male dogs, it can be seen in both sexes.
Symptoms and Types
Pituitary Dwarfism (Signs at two to three months of age)
Adult-onset Growth Hormone-Responsive Dermatosis
Your veterinarian will want a complete medical history of the dog, so as to determine when the animal began showing signs of the dermatosis. He or she will conduct a physical physical exam on the animal to help categorize the skin disease as either adult-onset or pituitary dwarfism.
To test for a growth hormone deficiency, the veterinarian may send blood away to have its Somatomedin C concentrations measured, give an insulin response test, test for normal adrenal gland function, and take skin samples to be analyzed at the laboratory. If your veterinarian suspects pituitary dwarfism, he or she may test adrenal and thyroid function.
The course of treatment will depend on the underlying cause of the disease.
Living and Management
This is a lifelong disease and retreatment is often necessary (within six months to three years) to prevent reoccurrence of signs. However, you should ask your veterinarian if the course of treatment may lead to side effects.
The gland that is found at the bottom of the brain whose job is to maintain appropriate levels of hormones in the blood
A hormone created by the pancreas that helps to regulate the flow of glucose
A condition of the skin
The gland that produces the hormone adrenaline and others; helps to regulate the metabolism, electrolytes, and even sexual function; also helps to regulate the way the body responds to injury, trauma, etc. The adrenal gland is found near the kidney. Also referred to as the suprarenal gland.
The hormones that stimulate growth of the body
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