Hg
Symbol for the metallic element mercury.
The abbreviation “mm Hg” means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading.
Mercury is poisonous to people. See Mercury poisoning.
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- HGD
The gene encoding an enzyme called homogentisate 1,2-dioxygenase (also known as homogentisate oxidase). HGD is located on chromosome 3 in region 3q21-q23. Homogentisate oxidase is active chiefly in the liver and kidneys. It is needed to break down the amino acids phenylalanine and tyrosine. Previous steps convert these two amino acids into a molecule called […]
- HHS
The Department of Health and Human Services of the US government, which has jurisdiction over public health, welfare, and civil rights issues and is the highest-level US government body with such jurisdiction. Agencies under HHS include the Food and Drug Administration (FDA) and the National Institutes of Health (NIH).
- HHT
Hereditary hemorrhagic telangiectasia.
- HHV-1
In rare cases, as when the immune system is severely compromised, this virus can cause infection of the brain (encephalitis). HHV-1 is also known as herpes simplex type (HSV 1) .
- HHV-2
Human herpesvirus 2, a virus that causes genital herpes, which is characterized by sores in the area of the genitalia. Genital herpes is a sexually transmitted disease (STD). This virus, like human herpesvirus 1, can cause infection of the brain (encephalitis) if the immune system is severely defective or compromised. The treatment of infection with […]