Hermansky-Pudlak syndrome

From Wikipedia, the free encyclopedia

**Hermansky-Pudlak syndrome**
*Classification & external resources*
ICD-10	E 70.3
OMIM	203300
DiseasesDB	29161
eMedicine	oph/713 derm/925
MeSH	D022861

Hermansky-Pudlak Syndrome (HPS) is an inherited disease which results in decreased pigmentation (oculocutaneous albinism), bleeding problems due to a platelet abnormality (platelet storage pool defect), and storage of an abnormal fat-protein compound (lysosomal accumulation of ceroid lipofuscin).

The disease can cause poor functioning of the lungs, intestine, kidneys or heart. The major complication of the disease is pulmonary fibrosis and typically causes death in patients ages 40 - 50 years old. The disorder is common in Puerto Rico, where many of the clinical research studies on the disease have been conducted. Neither the full extent of the disease nor the basic cause of the disease is known. There is no known treatment for HPS.

HPS can be caused by mutations in several genes: HPS1, HPS3, HPS4, HPS5, HPS6 and HPS7. HPS type 2, which includes immunodeficiency in its phenotype, is caused by mutation in the AP3B1 gene.

[edit] References

Di Pietro SM, Dell'Angelica EC (2005). "The cell biology of Hermansky-Pudlak syndrome: recent advances". Traffic 6 (7): 525-33. PMID 15941404.
Scheinfeld NS (2003). "Syndromic albinism: a review of genetics and phenotypes". Dermatol Online J 9 (5): 5. PMID 14996378.
Huizing M, Gahl WA (2002). "Disorders of vesicles of lysosomal lineage: the Hermansky-Pudlak syndromes". Curr Mol Med 2 (5): 451-67. PMID 12125811.
Huizing M, Anikster Y, Gahl WA (2000). "Hermansky-Pudlak syndrome and related disorders of organelle formation". Traffic 1 (11): 823-35. PMID 11208073.
HERMANSKY F, PUDLAK P (1959). "Albinism associated with hemorrhagic diathesis and unusual pigmented reticular cells in the bone marrow: report of two cases with histochemical studies". Blood 14 (2): 162-9. PMID 13618373.