Auto Immune Disorders
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Neuromuscular diseases affect animals as well as humans, and one of the most common is known as Acquired Myasthenia Gravis. It's a disorder that interrupts communication between the nerves and the muscles. It's also an autoimmune disease, meaning it's caused by the body's own immune system turning against itself. Specifically, the immune system attacks and destroys junctions, which are places where the neurons (nerve cells) and muscles interconnect. Once these junctions are destroyed, the adjacent muscles cannot be controlled or are poorly controlled.
With myasthenia gravis, a dog will experience muscle weakness, especially in the limbs and the muscles affecting the eyes, facial expressions, throat and esophagus. Sixty percent of affected dogs will become fatigued after any significant exercise; others will develop difficulty swallowing or noticeable changes in their voice. The dog may appear only slightly affected, or else be almost entirely immobile. [...]
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One of a group of similar diseases (including pemphigus vulgaris, pemphigus vegetans, and pemphigus erythematosus) known collectively as the pemphigus complex, pemphigus foliaceus is a disease in which the body mistakenly produces antibodies that attack the outermost layer of skin. Though all breeds of dog are susceptible to this disease, the most common victims include Akitas, Dachshunds, Doberman Pinschers, Spitz breeds, and Bearded Collies.
Because pemphigus foliaceus affects the most superficial skin layer, it is fortunately very easy to spot and diagnose. It usually manifests at first as a scaly texture to the skin, which then results in blisters that quickly rupture and cause scabs and other pus-filled sores. The blisters tend to come to a head and drain rapidly so they may be hard to find, but in general the disease has a very distinctive look and feel that makes it hard to misidentify. [...]
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Genetic hemolytic anemia goes by many different names including immune mediated hemolytic anemia and autoimmune hemolytic anemia or AIHA. It can be caused by something as simple as a bee sting a vaccination or even a complication from a basic skin infection or cut. It is a disease that is most common in both intact and spayed females and typically effects a wide number of dog breeds, both mixed and purebred. Within the purebred group the most common breeds to experience genetic hemolytic anemia are the Basenji, Cocker and Springer Spaniel, Old English Sheepdog, Poodle, Dachshund, Malamute, Shih Tzu and West Highland White Terrier. Mixed breeds that have lineage from one or more of these breeds are also at risk. [...]
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If you notice your dog is bruising easily or bleeding with no obvious cause, a trip to the veterinarian is in order. Your pet may have one of several types of bleeding disorders that can affect canines. These disorders occur when the blood does not clot normally, in turn causing the dog to bleed abnormally or excessively after any minor injury or cut.
There are a number of warning signs that indicate your dog may have a blood disorder. Be watchful for any bleeding or bruises that have no obvious cause, frequent nosebleeds and blood in the animal's urine or feces. Also, the gums may be pale, and there may be tiny pinpoint-sized red spots on the gums or the whites of the eyes. If your dog becomes tired easily, he also may have anemia, which results from a reduced number of oxygen-carrying red blood cells. [...]
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Necrotizing Myelopathy is a degenerative disease that affects the spinal cord in dogs, gradually affecting mobility and sensation. It is a progressive disease, so its not known to get better without treatment, and even with treatment, its progress is usually only slowed. The problem is one of the autoimmune system. As antibodies are produced that mistakenly attack the own body, tissue in the central nervous system is destroyed or "necrotized" this phenomenon is often described as the body literally eating itself. When the muscular tissue surrounding the spinal cord is eventually eaten away, it exposes the sensitive nerve fibres of the spinal cord itself. When those are affected, disastrous results begin to happen instantaneously. Paralysis results as the control pathways between the brain and the muscles are shut down and destroyed. [...]
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Immune medicated hemolytic anemia (IMHA) is the new name for Auto Immune Hemolytic Anemia (AIHA) a condition where the feline autoimmune system attacks red blood cells. The Immune System treats the red blood cells as foreign bodies; sending out antibodies which coat the red blood cells with a protein substance to single them out of the blood circulation pool for destruction. This process is called extravascular hemolysis. At the same time, the bilirubin (iron) that is extracted from these marked blood cells are sent to the liver. When this process occurs, the liver and spleen begin having problems. The spleen is overworked by having to process damaged red blood cells and enlarges as result. The liver is overloaded with bilirubin causing jaundice. [...]
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Auto Immune Disorders
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