Alanine transaminase (ALT)

Alanine transaminase (ALT) is an enzyme primarily found in the liver, playing a key role in converting alanine, an amino acid, into pyruvate, which is vital for energy production. In a blood test, ALT levels are measured to assess liver function. Elevated ALT levels can indicate liver damage or inflammation, often linked to conditions like hepatitis, fatty liver disease, or medication effects. For women, the normal ALT range is typically 7-35 units per liter (U/L), though this can vary slightly depending on the laboratory. It's important to interpret ALT levels in conjunction with other liver function tests and clinical context. Mild elevations might be due to factors like physical activity or recent muscle injury, while significant increases could suggest more serious liver conditions. Monitoring ALT over time can help in diagnosing and managing liver-related health issues in women.

 

• Function: ALT is involved in the process of gluconeogenesis, which is the generation of glucose from non-carbohydrate sources. It helps convert alanine, an amino acid, into pyruvate, which can then enter the citric acid cycle to produce energy or be used to generate glucose.

• Location: ALT is predominantly found in the liver, but smaller amounts can also be found in the kidneys, heart, muscles, and pancreas.

 

Alanine transaminase (ALT), also known as serum glutamate-pyruvate transaminase (SGPT), is an enzyme primarily found in the liver. It plays a key role in the metabolism of amino acids, specifically in the process of transferring an amino group from alanine to alpha-ketoglutarate, producing pyruvate and glutamate.