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Neurofibromatosis type I is the most common of the three types and is caused by genetic changes in the NF1 gene located on chromosome 17 (17q11.2). This gene encodes a cytoplasmic protein known the neurofibromin, which functions as a tumor suppressor and therefore serves as a signal regulator of cell proliferation and differentiation.
Café au lait spot characteristic of NF1 Diagnostic criteria of neurofibromatosis type I, requiring at least 2 of the mentioned items. [6]The following is a list of conditions and complications associated with NF-1, and, where available, age range of onset and progressive development, occurrence percentage of NF-1 population, method of earliest diagnosis, and treatments and related medical ...
Main symptoms of neurofibromatosis type I [28] Mutations in NF1 are primarily associated with neurofibromatosis type 1 (NF1, also known as von Recklinghausen syndrome). [ 6 ] [ 7 ] NF1 is the most common single gene disorder in humans, occurring in about 1 in 2500–3000 births worldwide. [ 29 ]
Oncology. The term fibromatosis refers to a group of soft tissue tumors [1] which have certain characteristics in common, including absence of cytologic and clinical malignant features, a histology consistent with proliferation of well-differentiated fibroblasts, an infiltrative growth pattern, and aggressive clinical behavior with frequent ...
Dural ectasia can be asymptomatic, in which case no intervention is necessary. However, it is associated with chronic pain in patients with Marfan syndrome, suggesting it is a structural risk factor. [20] There is no medical consensus on how to manage symptomatic (painful) dural ectasia.
Certain infections can potentially lead to infectious arthritis. A few examples include staph infections, Lyme disease, and gonorrhea. Smoking. Smoking is linked with a higher risk of rheumatoid ...
A heart attack can cause symptoms such as: Chest pain that often radiates to your left shoulder, neck, or arm. Abdominal pain. Shortness of breath. Fatigue. Pressure or heaviness in your chest ...
Neurofibromin 1. Neurofibromin 1 (NF1) is a gene in humans that is located on chromosome 17. [5] [6] [7] NF1 codes for neurofibromin, a GTPase-activating protein that negatively regulates RAS/MAPK pathway activity by accelerating the hydrolysis of Ras -bound GTP. [5] [6] [8] NF1 has a high mutation rate and mutations in NF1 can alter cellular ...