Autoimmune polyendocrine syndrome (APS) type 1 and type 2 are two distinct conditions that cause a wide range of health problems. Both types of APS are caused by an autoimmune reaction in which the body's immune system mistakenly attacks its own cells and tissues. The main difference between type 1 and type 2 APS is the types of hormones involved in the autoimmune reaction.
APS Type 1
APS type 1, also known as autoimmune polyglandular syndrome type 1 (APS-1), is an inherited disorder that affects multiple endocrine glands. It is characterized by the presence of multiple autoantibodies against hormone-producing glands such as the thyroid, parathyroid, and adrenal glands. It is believed that APS-1 is caused by mutations in the AIRE gene, which is responsible for regulating the body's immune system.
People with APS-1 typically experience a wide range of symptoms, including fatigue, weight loss, muscle weakness, anemia, and skin rashes. Treatment usually involves hormone replacement therapy and immune system-modifying medications.
APS Type 2
APS type 2, also known as autoimmune polyglandular syndrome type 2 (APS-2), is an inherited disorder that affects multiple endocrine glands. It is characterized by the presence of autoantibodies against hormone-producing glands such as the pituitary, pancreas, and ovary. It is believed that APS-2 is caused by mutations in the PTPN22 gene, which is responsible for regulating the body's immune system.
People with APS-2 typically experience a wide range of symptoms, including fatigue, weight loss, diabetes, infertility, and thyroid problems. Treatment usually involves hormone replacement therapy and immune system-modifying medications.
Conclusion
The main difference between autoimmune polyendocrine syndrome type 1 and type 2 is the types of hormones involved in the autoimmune reaction. APS type 1 is characterized by autoantibodies against hormone-producing glands such as the thyroid, parathyroid, and adrenal glands, while APS type 2 is characterized by autoantibodies against hormone-producing glands such as the pituitary, pancreas, and ovary. Treatment for both conditions typically involves hormone replacement therapy and immune system-modifying medications.