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BabyScreen+ newborn screening v1.114 FGF23 Tommy Li Added phenotypes familial hyperphosphatemic tumoral calcinosis/hyperphosphatemic hyperostosis syndrome MONDO:0100251; autosomal dominant hypophosphatemic rickets MONDO:0008660 for gene: FGF23
BabyScreen+ newborn screening v0.1698 FGF23 Zornitza Stark Marked gene: FGF23 as ready
BabyScreen+ newborn screening v0.1698 FGF23 Zornitza Stark Gene: fgf23 has been classified as Green List (High Evidence).
BabyScreen+ newborn screening v0.1698 FGF23 Zornitza Stark Classified gene: FGF23 as Green List (high evidence)
BabyScreen+ newborn screening v0.1698 FGF23 Zornitza Stark Gene: fgf23 has been classified as Green List (High Evidence).
BabyScreen+ newborn screening v0.1697 FGF23 Zornitza Stark Tag treatable tag was added to gene: FGF23.
Tag endocrine tag was added to gene: FGF23.
BabyScreen+ newborn screening v0.1697 FGF23 Zornitza Stark gene: FGF23 was added
gene: FGF23 was added to gNBS. Sources: Expert list
Mode of inheritance for gene: FGF23 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Phenotypes for gene: FGF23 were set to autosomal dominant hypophosphatemic rickets MONDO:0008660; familial hyperphosphatemic tumoral calcinosis/hyperphosphatemic hyperostosis syndrome MONDO:0100251
Review for gene: FGF23 was set to GREEN
Added comment: Mono-allelic GoF variants are associated with hypophosphataemic rickets.

Onset in some is in infancy (others adolescence).

Treatment: phosphate supplementation and calcitriol

Non-genetic confirmatory testing: serum phosphate, calcium, PTH, alkaline phosphatase levels, urine calcium level

Bi-allelic LoF variants are associated with tumoral calcinosis.

Age of onset and severity are variable, but include early childhood.

Treatment: dietary restriction, antacids, phosphate binders, acetazolamide, hemodialysis

Non-genetic confirmatory testing: serum phosphate, calcium, PTH, alkaline phosphatase, vitamin D serum levels, urine calcium, phosphate levels, plasma levels of the C-terminal portion of the phosphate-regulating hormone, fibroblast growth factor 23
Sources: Expert list