About lobstein disease (type i)
What is lobstein disease (type i)?
Osteogenesis Imperfecta (OI) is a group of rare disorders affecting the connective tissue and characterized by extremely fragile bones that break or fracture easily (brittle bones), often without apparent cause. The specific symptoms and physical findings associated with OI vary greatly from case to case. The severity of OI also varies greatly, even among individuals of the same family. OI may be a mild disorder or may result in severe complications. Four main types of OI have been identified. OI type I is the most common and the mildest form of the disorder. OI type II is the most severe. In most cases, the various forms of osteogenesis imperfecta are inherited as autosomal dominant traits.
What are the symptoms for lobstein disease (type i)?
Osteogenesis imperfecta (OI) is a group of Genetic disorders that mainly affect the bones. Osteogenesis imperfecta type 1 is the mildest form of OI and is characterized by Bone fractures during childhood and adolescence that often result from minor trauma. Fractures occur less frequently in adulthood. People with mild forms of the condition typically have a blue or grey tint to the part of the eye that is usually white (the sclera), and may develop Hearing loss in adulthood. Affected individuals are usually of normal or near normal height.
What are the causes for lobstein disease (type i)?
Most of the mutations that cause osteogenesis imperfecta type 1 occur in the COL1A1 gene. These genetic changes reduce the amount of type I collagen produced in the body, which causes bones to be brittle and fracture easily. OI type 1 exhibits an autosomal dominant pattern of inheritance.
What are the risk factors for lobstein disease (type i)?
Lobstein disease (type I) osteogenesis imperfecta is a genetic disorder that causes bones to fracture easily. It's caused by a mutation in a gene called COL1A1.
1. The mutation causes the body to produce a defectively structured protein called collagen. Collagen helps give bones strength and flexibility. When it's defective, bones become weaker and more likely to break or deform.
2. People with Lobstein disease often have blue sclerae (the white part of their eyes), short stature, and hearing loss. They may also have delayed growth and development, including delayed tooth eruption and puberty onset.
3. Lobstein disease is one of several types of osteogenesis imperfecta (OI). The other types include OI type II (also known as a brittle bone disease), which is milder than type I but more likely to cause fractures; OI type III (also known as osteoporosis-pseudoglioma syndrome), which causes very fragile bones that are prone to fractures; OI type IV (also known as Albers-Schonberg disease), which causes severe bone deformities.
The risk factors for Lobstein disease (type I) include:
1. Family history of the disease. If you have a parent or sibling with Lobstein disease, you are at increased risk of developing it yourself. There is also an increased risk if your parents or siblings have other conditions related to bone development, such as osteogenesis imperfecta or osteopetrosis.
2. Gestational age: The younger the fetus is when diagnosed with Lobstein disease (type I), the more severe its symptoms are likely to be.
3. Birth weight: Babies born with Lobstein disease (type I) who weigh less than 3 pounds at birth tend to have more severe symptoms than those born at normal birth weight.
Symptoms
Bone pain in the legs, hips and back,Bone deformity, including spinal curvature and bowlegs,Short height
Conditions
Congenital cardiac disease,Neurosurgery and aneurysms,Other bone diseases, such as osteogenesis imperfecta and osteoporosis,Exposure to medications, such as lithium or phenytoin (Dilantin)
Drugs
Amiloride,Propranolol,Spironolactone,Eplerenone