Phenylalanine ammonia-lyase immobilized in microcapsules for the depletion of phenylalanine in plasma in phenylketonuric rat model
Biochimica et Biophysica Acta (BBA) - General Subjects, ISSN: 0304-4165, Vol: 883, Issue: 3, Page: 432-438
1986
- 60Citations
- 12Captures
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Metrics Details
- Citations60
- Citation Indexes60
- CrossRef60
- 57
- Captures12
- Readers12
- 12
Article Description
Microencapsulation of the enzyme phenylalanine ammonia-lyase was developed for in vivo depletion of systemic phenylalanine in phenylketonuric rats. Compared to normal rats, systemic phenylalanine blood levels in phenylketonuric rats was increased by 15–20-fold. Daily oral administration of 1 unit of phenylalanine ammonia-lyase-loaded artificial cells to phenylketonuric rats lowered the systemic phenylalanine level to 58% ± 18% (mean + S.D.) in 7 days ( P < 0.010), while 5 units lowered the systemic phenylalanine level to 25% ± 8%. 5 units of the immobilized enzyme lowered the systemic phenylalanine level to normal levels within 6 days. Phenylketonuric treated rats showed no signs of abnormal behavior and weight loss compared to phenylketonuric non-treated rats. The immobilized enzyme within artificial cells is therefore protected against low gastrointestinal pH and proteolytic enzymes.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/0304416586902813; http://dx.doi.org/10.1016/0304-4165(86)90281-3; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0022533625&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/3756210; https://linkinghub.elsevier.com/retrieve/pii/0304416586902813; http://dx.doi.org/10.1016/0304-4165%2886%2990281-3; https://dx.doi.org/10.1016/0304-4165%2886%2990281-3
Elsevier BV
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