Platelet storage pool deficiency

Platelet storage pool deficiency is a type of coagulopathy characterized by defects in the granules in platelets, particularly a lack of granular non-metabolic adenosine diphosphate.[3] Individuals with adenosine diphosphate deficient storage pool disease present a prolonged bleeding time due to impaired aggregation response to fibrillar collagen.

Platelet storage pool deficiency
Other namesStorage pool platelet disease[1]
Platelet storage pool deficiency is inherited in an autosomal dominanr manner
SpecialtyHematology 
SymptomsAnemia[1]
CausesInherited or acquired[1]
Diagnostic methodFlow cytometry, Bleeding time analysis[1]
TreatmentAntifibrinolytic medications[2][1]

Symptoms and signs
Anemia

The presentation (signs/symptoms) of an individual with platelet storage pool deficiency is as follows:[1]

Cause
Hairy cell leukemia

The condition of platelet storage pool deficiency can be acquired or inherited(genetically passed on from the individuals parents[4]).[1] Some of the causes of platelet storage pool deficiency when acquired are:[1]


Mechanism
Platelet structure

In terms of the pathophysiology of platelet storage pool deficiency one must consider several factors including the human body's normal function prior to such a deficiency, such as platelet alpha-granules one of three types of platelet secretory granule[5]

Platelet α–granules are important in platelet activity, α–granules connect with plasma membrane. This in turn increases the size of the platelet. Platelet α–granules have an important role in hemostasis as well as thrombosis. SNARE accessory proteins control the secretion of α–granule.[5]

Diagnosis

The diagnosis of this condition can be done via the following:[1]

Types

This condition may involve the alpha granules or the dense granules.[6] Therefore the following examples include:

Flow cytometry analysis

Treatment

Platelet storage pool deficiency has no treatment however management consists of antifibrinolytic medications if the individual has unusual bleeding event, additionally caution should be taken with usage of NSAIDS[1][2]

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See also

References
  1. "Platelet storage pool deficiency | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program". rarediseases.info.nih.gov. Retrieved 2017-10-28.
  2. Kirchmaier, Carl Maximilian; Pillitteri, Daniele (October 2010). "Diagnosis and Management of Inherited Platelet Disorders". Transfusion Medicine and Hemotherapy. 37 (5): 237–246. doi:10.1159/000320257. ISSN 1660-3796. PMC 2980508. PMID 21113246.
  3. Alan D. Michelson (2007). Platelets. Burlington, MA: Academic Press/Elsevier. pp. 313. ISBN 978-0-12-369367-9.
  4. Choices, NHS (2017-10-23). "Genetics - Genetic inheritance - NHS Choices". www.nhs.uk. Retrieved 28 October 2017.
  5. Blair, Price; Flaumenhaft, Robert (2009). "Platelet alpha-granules: basic biology and clinical correlates". Blood Reviews. 23 (4): 177–189. doi:10.1016/j.blre.2009.04.001. ISSN 1532-1681. PMC 2720568. PMID 19450911.
  6. William B. Coleman; Gregory J. Tsongalis (2009). Molecular pathology: the molecular basis of human disease. Academic Press. pp. 258–. ISBN 978-0-12-374419-7. Retrieved 2 November 2010.
  7. Reserved, Inserm US14 -- All Rights. "Orphanet: Gray platelet syndrome". www.orpha.net. Retrieved 2017-10-29.
  8. "OMIM Entry - # 601709 - Quebec Platelet Disorder". www.omim.org. Retrieved 29 October 2017.
  9. Kaushansky K, Lichtman M, Beutler E, Kipps T, Prchal J, Seligsohn U. (2010; edition 8: pages 1946–1948) Williams Hematology. McGraw-Hill. ISBN 978-0-07-162151-9
  10. Huizing, Marjan; Malicdan, May Christine V.; Gochuico, Bernadette R.; Gahl, William A. (1993). "Hermansky-Pudlak Syndrome". In Adam, Margaret P.; Ardinger, Holly H.; Pagon, Roberta A.; Wallace, Stephanie E.; Bean, Lora JH; Mefford, Heather C.; Stephens, Karen; Amemiya, Anne; Ledbetter, Nikki (eds.). GeneReviews. Seattle (WA): University of Washington, Seattle. PMID 20301464.update 2017
  11. Reserved, INSERM US14 -- All Rights. "Orphanet: Chédiak Higashi syndrome". www.orpha.net. Retrieved 29 October 2017.

Further reading
Classification
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