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Most persons with Pfeiffer syndrome type 1 have a normal intelligence and life span; types 2 and 3 typically cause neurodevelopmental disorders and early death. Later in life, surgery can help in bone formation and facial construction. Pfeiffer syndrome affects about 1 in 100,000 persons.
Paternal age effect. The paternal age effect is the statistical relationship between the father's age at conception and biological effects on the child. [1] Such effects can relate to birthweight, congenital disorders, life expectancy and psychological outcomes. [2] A 2017 review found that while severe health effects are associated with higher ...
Kleeblattschaedel. Kleeblattschaedel is a rare malformation of the head where there is a protrusion of the skull and broadening of the face. [2] This condition is a severe type of craniosynostosis. [3] The condition can be both isolated or associated with other craniofacial dysostosises. [4] 85% of children with this condition have other ...
Jansen's metaphyseal chondrodysplasia ( JMC) is a disease that results from ligand -independent activation of the type 1 ( PTH1R) of the parathyroid hormone receptor, due to one of three reported mutations (activating mutation). JMC is extremely rare, and as of 2007 there are fewer than 20 reported cases worldwide.
Human life expectancy is a statistical measure of the estimate of the average remaining years of life at a given age. The most commonly used measure is life expectancy at birth (LEB, or in demographic notation e0, where ex denotes the average life remaining at age x ). This can be defined in two ways.
Marfan syndrome ( MFS) is a multi-systemic genetic disorder that affects the connective tissue. [6] [7] [1] Those with the condition tend to be tall and thin, with long arms, legs, fingers, and toes. [1] They also typically have exceptionally flexible joints and abnormally curved spines. [1]
IgG4-related disease ( IgG4-RD ), formerly known as IgG4-related systemic disease, is a chronic inflammatory condition characterized by tissue infiltration with lymphocytes and IgG4 -secreting plasma cells, various degrees of fibrosis (scarring) and a usually prompt response to oral steroids. In approximately 51–70% of people with this ...
Duration. Lifelong. Multiple epiphyseal dysplasia ( MED ), also known as Fairbank's disease, is a rare genetic disorder (dominant form: 1 in 10,000 births) that affects the growing ends of bones. Long bones normally elongate by expansion of cartilage in the growth plate ( epiphyseal plate) near their ends. As it expands outward from the growth ...
Carpenter syndrome, also called acrocephalopolysyndactyly type II, [1] is an extremely rare autosomal recessive [2] congenital disorder characterized by craniofacial malformations, obesity, syndactyly, and polydactyly. [2] Acrocephalopolysyndactyly is a variation of acrocephalosyndactyly that presents with polydactyly.
Treacher Collins syndrome is not curable. Symptoms may be managed with reconstructive surgery, hearing aids, speech therapy, and other assistive devices. Life expectancy is generally normal. TCS occurs in about one in 50,000 people.