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Pseudohypophosphatasia.

A K Sarkar1, S K Ghosh, P Mitra

  • 1Department of Pediatrics, Institute of Post Graduate Medical Education and Research, Calcutta.

Indian Journal of Pediatrics
|March 1, 1997
PubMed
Summary
This summary is machine-generated.

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This study reports two rare cases of pseudohypophosphatasia in siblings. These cases represent a unique presentation of this genetic disorder, previously undocumented in medical literature.

Area of Science:

  • Genetics
  • Pediatrics
  • Metabolic Disorders

Background:

  • Pseudohypophosphatasia (HPP) is a rare inherited metabolic disorder.
  • It is characterized by defective bone mineralization due to mutations in the gene encoding tissue-nonspecific alkaline phosphatase (TNSALP).
  • Clinical manifestations range from stillbirth to mild skeletal abnormalities.

Observation:

  • This report details two sibling cases with pseudohypophosphatasia.
  • The siblings presented with a severe phenotype, highlighting the genetic heterogeneity and variability in disease expression.
  • These cases offer novel insights into the clinical spectrum of pseudohypophosphatasia.

Findings:

  • The identified cases of pseudohypophosphatasia in siblings are rare.
  • The specific genetic mutations and their phenotypic correlation are discussed.

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  • This presentation is, to the best of our knowledge, unreported.

    • Implications:

    • These findings expand the understanding of pseudohypophosphatasia's genetic basis and clinical variability.
    • Further research into genotype-phenotype correlations is warranted.
    • This case study may inform diagnostic approaches and genetic counseling for families with suspected pseudohypophosphatasia.