Patent ID: 7776556

Claim:
A method for diagnosing human diseases myasthenia gravis, said method comprising the steps of: providing a biological sample from a patient having symptoms of or suspected to have a disease affecting the tissues of organs selected from the group consisting of spleen, brain, heart, kidney, thyroid, eye, skin, intestine, liver, pancreas, adrenal gland, prostate and lungs or tissues of bones, muscle or other tissues; determining the amount of autoimmune-antibodies against type XIII collagen in the biological sample, and comparing the amount of autoimmune-antibodies in the sample to the amount of autoimmune-antibodies in a biological sample of a group of control people not having symptoms of the disease to be diagnosed; wherein an increase of the amount of autoimmune-antibodies in the sample compared to the amount of autoimmune-antibodies in the sample of a group of control people is indicative of myasthenia gravis.