Glycogen phosphorylase isoenzyme BB (abbreviation: GPBB) is an
isoenzyme of
glycogen phosphorylase. This isoform of the enzyme exists in cardiac (heart) and brain tissue.
The enzyme is one of the "new
cardiac marker
Cardiac markers are biomarkers measured to evaluate heart function. They can be useful in the early prediction or diagnosis of disease. Although they are often discussed in the context of myocardial infarction, other conditions can lead to an elev ...
s" which are discussed to improve early diagnosis in
acute coronary syndrome
Acute coronary syndrome (ACS) is a syndrome (a set of signs and symptoms) due to decreased blood flow in the coronary arteries such that part of the heart muscle is unable to function properly or dies. The most common symptom is centrally l ...
. A rapid rise in blood levels can be seen in
myocardial infarction
A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to the coronary artery of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which ma ...
and
unstable angina.
Other enzymes related to glycogen phosphorylase are abbreviated as
GPLL (liver) and
GPMM (muscle).
References
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Cardiology
Blood tests
de:Glycogenphosphorylase#Glycogenphosphorylase BB
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