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Laron syndrome (LS), also known as growth hormone insensitivity or growth hormone receptor deficiency (GHRD), is an autosomal recessive disorder characterized by a lack of insulin-like growth factor 1 (IGF-1; somatomedin-C) production in response to growth hormone (GH; hGH; somatotropin). [6]
Stimmler syndrome is an autosomal recessive genetic disorder whose symptoms appear before birth or during infancy. [1] In a study of two sisters born within a year of each other, both with Stimmler syndrome, it was found that high levels of alanine, pyruvate, and lactate were present in both the blood and urine.
Hypochondroplasia (HCH) is a developmental disorder caused by an autosomal dominant genetic defect in the fibroblast growth factor receptor 3 gene that results in a disproportionately short stature, micromelia [3] and a head that appears large in comparison with the underdeveloped portions of the body.
It is often termed Brachmann de Lange syndrome or Bushy syndrome and is also known as Amsterdam dwarfism. Its exact incidence is unknown, but it is estimated at 1 in 10,000 to 30,000. Its exact incidence is unknown, but it is estimated at 1 in 10,000 to 30,000.
Wolfram syndrome, also called DIDMOAD (diabetes insipidus, diabetes mellitus, optic atrophy, and deafness), is a rare autosomal-recessive genetic disorder that causes childhood-onset diabetes mellitus, optic atrophy, and deafness as well as various other possible disorders including neurodegeneration.
The ten children receiving the highest dose grew 6.1 centimetres (2.4 in) in six months, compared to 4.0 centimetres (1.6 in) in the six months before the treatment (p=0.01). [15] The body proportions , more specifically the ratio of leg length to upper body length – which is lower in achondroplasia patients than in the average population ...
Treatment is by growth hormone replacement using synthetic human growth hormone. [1] The frequency of the condition is unclear. [2] Most cases are initially noticed in children. [1] The genetic forms of this disease are estimated to affect about 1 in 7,000 people. [3] Most types occur equally in males and females though males are more often ...
The result depends on the cause, but is typically an increase in final height of about 5 to 10 centimetres (2.0 to 3.9 in) taller than predicted. [5] Thus, treatment takes a child who is expected to be much shorter than a typical adult and produces an adult who is still obviously shorter than average.