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Hyperphenylalaninemia in the Philippines.

Sylvia Capistrano-Estrada1, Carmencita D Padilla

  • 1Institute of Human Genetics, National Institutes of Health, University of the Philippines Manila.

The Southeast Asian Journal of Tropical Medicine and Public Health
|May 24, 2005
PubMed
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Early detection of hyperphenylalaninemia (HPA) through newborn screening is crucial. This study highlights the management of two HPA cases in the Philippines, emphasizing timely intervention for better outcomes.

Area of Science:

  • Biochemistry
  • Genetics
  • Pediatrics

Background:

  • Newborn screening programs are vital for early detection of metabolic disorders.
  • Hyperphenylalaninemia (HPA) is a group of genetic conditions affecting phenylalanine metabolism.
  • Phenylketonuria (PKU) is the most common form of HPA, requiring dietary management.

Observation:

  • A retrospective review of 189,720 newborns screened between 1996-2001 was conducted.
  • Three cases of HPA were confirmed, including two presented in this paper.
  • Screening involved Guthrie Test/Bacterial Inhibition Assay, confirmed by plasma amino acid analysis and pterin studies.

Findings:

  • Two cases of HPA were identified and managed through the Philippine Newborn Screening Program.
  • Management involved a low-phenylalanine diet and regular monitoring of phenylalanine levels and developmental progress.

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  • Early diagnosis and intervention are critical for preventing severe health consequences.

    • Implications:

    • This study underscores the importance of newborn screening for HPA in the Philippines.
    • Effective management strategies can lead to positive developmental outcomes for affected infants.
    • Continued surveillance and research are necessary to optimize HPA care.