Polycythemia Vera and Lou Gehrig's Disease
Polycythemia Vera (PV)
PV is in basic terms "a stem cell disorder characterized by proliferation of a clone of hematopoietic precursors, nearly all of which arise from a mutation in the JAK2 (janus kinase 2) gene" (Hines & Marschall, 2012, p.417). Being a bone marrow disease, PV leads to what MedicinePlus (2013), a U.S. National Library of Medicine service, refers to as an unusual increase in primary red blood cell numbers.
Symptoms and Causes
Some of the symptoms of this PV include but they are not limited to fatigue and shortness of breath, reddened and itchy skin, dizziness and unexplained headaches, and breathing difficulties (MedicinePlus, 2013). Other symptoms in this case could include unexplained weight loss and general body weakness.
PV essentially comes about when there is a problem with the production of blood cells as a result of a mutation in the affected individual's bone marrow cell. The exact cause of the said mutation is not...
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