In the developed nations, there are rare cases of deficiency of vitamin B2 since most of the food products with refined carbohydrates contain a good amount of riboflavin. Also, eggs and meat which are also commonly consumed are a good source of vitamin B2.
Blood plasma and serum â Blood plasma, or plasma, is prepared by obtaining a sample of blood and removing the blood cells. The red blood cells and white blood cells are removed by spinning with a centrifuge.
Plasma cell leukemia (PCL) is a rare and aggressive form of cancer that may develop on its own, or from an existing case of multiple myeloma.CL and the related disease, multiple myloma, are cancers of the plasma cells. Plasma cells are a type of white blood cell that produces antibodies. When these abnormal plasma cells reproduce and cluster in the bones, they create lesions that can lead to fractures.