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Aspartate transaminase (AST) or aspartate aminotransferase, also known as AspAT/ASAT/AAT or (serum) glutamic oxaloacetic transaminase (GOT, SGOT), is a pyridoxal phosphate (PLP)-dependent transaminase enzyme (EC 2.6.1.1) that was first described by Arthur Karmen and colleagues in 1954.
[11] [12] [13] Levels in the third trimester can be as much as 2-fold greater than in non-pregnant women. [11] As a result, ALP is not a reliable marker of hepatic function in pregnant women. [11] In contrast to ALP, levels of ALT, AST, GGT, and lactate dehydrogenase are only slightly changed or largely unchanged during pregnancy. [11]
AST and ALT blood levels are both elevated, but at less than 300 IU/liter, with an AST:ALT ratio > 2.0, a value rarely seen in other liver diseases. [52] In the United States, 40% of cirrhosis-related deaths are due to alcohol. [33] In non-alcoholic fatty liver disease (NAFLD), fat builds up in the liver and eventually causes scar tissue. [53]
The proportion of AST to ALT in hepatocytes is about 2.5:1, but because AST is removed from serum by the liver sinusoidal cells twice as quickly (serum half-life t 1/2 = 18 hr) compared to ALT (t 1/2 = 36 hr), so the resulting serum levels of AST and ALT are about equal in healthy individuals, resulting in a normal AST/ALT ratio around 1.
Researchers have discovered that proteins in the blood could be used to detect over 60 conditions, including multiple myeloma, non-Hodgkin lymphoma, and motor neuron disease.
Alanine transaminase (ALT), also known as alanine aminotransferase (ALT or ALAT), formerly serum glutamate-pyruvate transaminase (GPT) or serum glutamic-pyruvic transaminase (SGPT), is a transaminase enzyme (EC 2.6.1.2) that was first characterized in the mid-1950s by Arthur Karmen and colleagues. [1]
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The women with the highest levels of IgM anti-PC had a 73% lower risk of CVD than those in the group with the lowest levels. The reduction was most evident in the risk of ischemic heart disease ...