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Most individuals with G6PD deficiency are asymptomatic.When it induces hemolysis, the effect is usually short-lived. [5]Most people who develop symptoms are male, due to the X-linked pattern of inheritance, but female carriers can be affected due to unfavorable lyonization or skewed X-inactivation, where random inactivation of an X-chromosome in certain cells creates a population of G6PD ...
G6PD reduces NADP + to NADPH while oxidizing glucose-6-phosphate. [2] Glucose-6-phosphate dehydrogenase is also an enzyme in the Entner–Doudoroff pathway, a type of glycolysis. Clinically, an X-linked genetic deficiency of G6PD makes a human prone to non-immune hemolytic anemia. [3]
Many patients with 6-phosphogluconate dehydrogenase deficiency are carriers and have no symptoms. It has been discovered that symptoms manifest more frequently in female carriers. Depending on how severe the deficiency is, it has been demonstrated that enzyme activity is reduced by 35–65%. [citation needed]
G6PD deficiency by itself is usually asymptomatic, but when combined with external stress such as an infection, fava beans, or oxidative drugs like primaquine. [ 25 ] Primaquine and tafenoquine can pass through the placenta, causing hemolytic anemia in utero if the fetus has G6PD deficiency.
The syndrome cannot cause severe indirect hyperbilirubinemia in neonates by itself, but it may have a summative effect on rising bilirubin when combined with other factors, [10] for example in the presence of increased red blood cell destruction due to diseases such as G6PD deficiency.
Whipple's triad is a collection of three signs (called Whipple's criteria) that suggests that a patient's symptoms result from hypoglycaemia that may indicate insulinoma. The essential conditions are symptoms of hypoglycaemia, low blood plasma glucose concentration , and relief of symptoms when plasma glucose concentration is increased.
Pyruvate kinase deficiency is an inherited metabolic disorder of the enzyme pyruvate kinase which affects the survival of red blood cells. [ 4 ] [ 5 ] Both autosomal dominant and recessive inheritance have been observed with the disorder; classically, and more commonly, the inheritance is autosomal recessive .
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