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Kwashiorkor is a disease of malnutrition characterized by decreased protein intake and amino acid deficiency resulting in hypoalbuminemia and a characteristic physical presentation. This is an extreme example of how malnutrition can result in hypoalbuminemia. [ 3 ]
Evidence indicates that amino acid balance has an important effect on protein nutrition and therefore on glutathione homeostasis. [28] Cysteine is an essential amino acid that acts as the limiting amino acid for glutathione synthesis in humans. Factors that increase demand for glutathione may increase demand for cysteine, and hence methionine.
Liver disease can also cause hypoproteinemia by decreasing synthesis of plasma proteins like albumin. Renal disease like nephrotic syndrome can also result in hypoproteinemia because plasma proteins are lost in the urine. Sepsis (whole body infection) – macrophages activated in the liver and spleen secrete TNF-alpha into the bloodstream ...
A low-protein diet is used as a therapy for inherited metabolic disorders, such as phenylketonuria and homocystinuria, and can also be used to treat kidney or liver disease. Low protein consumption appears to reduce the risk of bone breakage presumably through changes in calcium homeostasis. [1]
In humans, the tyrosine aminotransferase protein is encoded by the TAT gene. [7] A deficiency of the enzyme in humans can result in what is known as type II tyrosinemia, wherein there is an abundance of tyrosine as a result of tyrosine failing to undergo an aminotransferase reaction to form 4-hydroxyphenylpyruvate. [8]
Hypoprothrombinemia can be the result of a genetic defect, may be acquired as the result of another disease process, or may be an adverse effect of medication.For example, 5-10% of patients with systemic lupus erythematosus exhibit acquired hypoprothrombinemia due to the presence of autoantibodies which bind to prothrombin and remove it from the bloodstream (lupus anticoagulant ...
Pyruvate kinase deficiency is due to a mutation in the PKLR gene. There are four pyruvate kinase isoenzymes, two of which are encoded by the PKLR gene (isoenzymes L and R, which are used in the liver and erythrocytes, respectively). Mutations in the PKLR gene therefore cause a deficiency in the pyruvate kinase enzyme. [3] [9]
If the liver damage is significant, albumin may be decreased due to an inability of damaged liver cells to produce this protein; likewise, the prothrombin time (a test of coagulation) may be prolonged as the liver is unable to produce proteins known as clotting factors. [5]