Title- The Genetic Disease Sickle Cell Anemia Introduction- Throughout evolutionary history, advances in molecular biology allow molecular biologist to discover new genetic diseases. Sickle cell anemia is an inherited blood disorder in which there is a single amino acid substitution, which alters the structure and function of the hemoglobin. People who have sickle cell anemia have different severity of symptoms. Some may have reoccurring sickness and trouble breathing while others would have a greater difficulty to breathe leading them to no longer survive.
Chapter 7 - Review - Case Study - A Tale of Blood Chemistry and Health - Page 398: 1
Blood For Sale | henrigougaud.info
Sales of Illegal Goods on the Internet With the increase of on-line crimes and fraud, stricter laws must be placed on the sale of such problematic items as guns, prescription drugs, and human blood and organs over the Internet. The selling of these and other items has created many problems in recent months. Most of these items are auctioned online through popular sites such as e-bay. This is a somewhat complicated issue due to the fact that they are many conflicting opinions.
Old Hand or New Blood?
Coagulation of the blood is a process that prevents excess loss of blood from the body. The coagulation process occurs as a result of two steps: The first, Primary Homeostasis, is characterized by activation of the platelets for the formation of a plug at the punctured site. On being punctured, the von Willebrand Factor vWF of the body tissues become exposed resulting into the gathering of the collagen and other coagulating factors. The circulating platelets then adhere to the collagen; subsequently, a series of reactions producing other materials that cause more adhesion of collagen and platelets ensue. More materials are then released by the bound platelets boosting their clumping thus helping the plug formation Bose , Another step, Secondary Homeostasis, is characterized by a cascade of reactions that help in the formation of fibrin.
I have taught Transfusion Medicine to MLS students for a number of years, and one of the more challenging concepts for my students is that of ABO discrepancies. Without seeing this in the lab, and actually performing the steps to resolve, visual learners in particular can be at a disadvantage. In reality, some of the more unusual ABO discrepancy problems are found more often on exams than in real life.