Hypophosphatasia in adults: A new manifestation, a new mutation. A case report
Year:
2018
Type of item:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Language:
Inglese
Referee:
No
Name of journal:
CLINICAL CASES IN MINERAL AND BONE METABOLISM
ISSN of journal:
1724-8914
N° Volume:
15
Number or Folder:
2
:
CIC Edizioni Internazionali, Roma
Page numbers:
255-257
Keyword:
hypophosphatasia; bone turnover markers; menopause; osteoporosis
Short description of contents:
Tissue non-specific alkaline phosphatase (TNSALP) is an ubiquitary enzyme fundamental for bone tissue development and growth. Adult Hypophosphatasia (HPP) is a rare genetic disease caused by a defective TNSALP activity. HPP is frequently misdiagnosed due to the lack of clinical manifestation. We report an asymptomatic woman with HPP that during 5 years follow-up suffered of a bone fracture. Sequencing of genomic DNA revealed a previously unreported mutation at nucleotide 1252G > A (Gly418Arg) leading to a defective enzyme product in the subject. HPP was suspected because of the lack of the expected increase of serum TNSALP at menopause. Our case report underlines the importance of early diagnosis and that the lack of increase of TNSALP at meno pause must be a wake-up call for clinicians.