Influence of P. Falciparum On The Human Genome
The presence of the parasite in human populations caused selection in the human genome in a multitude of ways, as humans have been forced to develop resistance to the disease. Beet, a doctor working in Southern Rhodesia (now Zimbabwe) in 1948, first suggested that sickle-cell disease could offer some protection to malaria. This suggestion was reiterated by J. B. S. Haldane in 1949, who suggested that thalassaemia could provide similar protection. This hypothesis has since been confirmed and has been extended to hemoglobin C and hemoglobin E, abnormalities in ankyrin and spectrin (ovalocytosis, elliptocytosis), in glucose-6-phosphate dehydrogenase deficiency and pyruvate kinase deficiency, loss of the Gerbich antigen (glycophorin C) and the Duffy antigen on the erythrocytes, thalassemias and variations in the major histocompatibility complex classes 1 and 2 and CD32 and CD36.
Read more about this topic: Plasmodium Falciparum
Famous quotes containing the words influence of, influence and/or human:
“For character too is a process and an unfolding ... among our valued friends is there not someone or other who is a little too self confident and disdainful; whose distinguished mind is a little spotted with commonness; who is a little pinched here and protruberent there with native prejudices; or whose better energies are liable to lapse down the wrong channel under the influence of transient solicitations?”
—George Eliot [Mary Ann (or Marian)
“I am not sure but I should betake myself in extremities to the liberal divinities of Greece, rather than to my countrys God. Jehovah, though with us he has acquired new attributes, is more absolute and unapproachable, but hardly more divine, than Jove. He is not so much of a gentleman, not so gracious and catholic, he does not exert so intimate and genial an influence on nature, as many a god of the Greeks.”
—Henry David Thoreau (18171862)
“The necessary has never been mans top priority. The passionate pursuit of the nonessential and the extravagant is one of the chief traits of human uniqueness. Unlike other forms of life, mans greatest exertions are made in the pursuit not of necessities but of superfluities.”
—Eric Hoffer (19021983)