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Table 2 Putative antagonistically pleiotropic disease alleles.

From: Antagonistic pleiotropy as a widespread mechanism for the maintenance of polymorphic disease alleles

Disease

Gene; Variation

Putative Benefit

Triosephosphate Isomerase Deficiency

TPI Gene: point mutations.

Reduction in oxidative stress.

Tay Sachs

HEXA: missense mutations.

Protection against tuberculosis.

Hemachromatosis

HFE Gene: many point mutation.

Better iron absorption, increased resistance to typhoid fever and tuberculosis

Phenylketonuria

PKU: missense mutation.

Lower probability of miscarriage

Leukemia

PTNP11: various expression level mutations.

Lower probability of hepatocellular carcinoma

Schizophrenia

Chromosomal regions 6p22-p24 and 11q21-22.

Higher relative fertility (in unaffected relatives).

Cancer

TNFRSF11B Gene; Various Polymorphisms

Increased Bone Density in Females

  1. These diseases have been proposed to have antagonistic pleiotropic effects in their etiology, but the evidence is suggestive and preliminary.