Tuesday, May 14, 2019

Medical Moment: Genetics

Medical Moment: Genetics
The porphyrias are inherited genetic conditions, which means that people with a porphyria have changes to certain genes that affect their body’s ability to regulate itself. When genes are copied, either to make new cells or to make a child, sometimes the body makes an imperfect copy. There can be little changes in the genes, called mutations, which can occur randomly. Sometimes these changes do not make any difference in how well the gene works, but other times they can keep the gene from working properly (referred to as mutations) and are disease causing.
In the porphyrias, these mutations are in the genes involved in a certain chemical pathway, called the heme biosynthetic pathway. Heme is a compound that the body needs to make hemoglobin and there are several steps to make this compound in the body. Each type of porphyria is caused by a defect in a specific enzyme in the heme biosynthetic pathway. Without these enzymes working properly, the body is not able to finish making heme and it causes a buildup of other compounds, called porphyrins. It is the buildup of different types of porphyrins that causes the types of porphyria.
Click the link below to learn more about Genetics!
https://porphyriafoundation.org/pa…/about-porphyria/genetics

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