Scurvy -gulonolactone oxidase (GULO) enzyme, which is required in the last step of vitamin C synthesis. The genomes of these species contain GULO as pseudogenes, which serve as insight into the evolutionary past of the species. In babies, scurvy is sometimes referred to as Barlow's disease, named after Thomas Barlow, a British physician who described it in 1883. However, Barlow's disease or Barlow's syndrome may also refer to mitral valve prolapse, first described by John Brereton Barlow in 1966. Scurvy Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). Early symptoms include weakness, feeling tired, and sore
Vitamin A deficiency fat malabsorption such as pancreatitis, cystic fibrosis, tropical sprue, and biliary obstruction. Other causes of vitamin A deficiency are inadequate intake, fat malabsorption, or liver disorders. Deficiency impairs immunity and hematopoiesis and causes rashes and typical ocular effects (e.g., xerophthalmia, night blindness). Along with poor diet, a large amount of infection and disease is present in many developing communities. Infection is very draining on vitamin A reserves and this vitamin A deficit leaves the individual more susceptible to infection; increased documentation of xerophthalmia has been seen after an outbreak of measles and the varying stages of xerophthalmia become a good