Estrogen Protects After Effects of Kidney Transplantion

by Julia Samuel on  April 19, 2016 at 4:01 PM Research News   - G J E 4
Ischemia-reperfusion injury is one of the adverse effects which occurs as a result of blood flow restriction during the reperfusion stage of kidney transplant surgery.
Estrogen Protects After Effects of Kidney Transplantion
Estrogen Protects After Effects of Kidney Transplantion

In animal models of transplantation, females show increased tolerance to ischemia compared to males, but it is unclear whether sex disparities extend to human kidney transplantations. The research led by Matthew Levine at the University of Pennsylvania linked female resilience to renal ischemia with protective effects of estrogen.

‘Renal ischemia reperfusion injury is the deficiency of blood in one or both kidneys, or nephrons, usually due to functional constriction or actual obstruction of a blood vessel due to lack of oxygen supply.’
Female mice displayed increased survival rates and lower levels of kidney injury compared to males following induced renal ischemia. The effects were attenuated in neutered females, but supplemental estrogen prior to the ischemic episode restored protection.

Moreover, an analysis of over 46,000 human kidney transplantation outcomes associated greater failure rates in male compared to female transplant recipients. These findings suggest that improved female outcomes after kidney transplantation may be due to protective effects of estrogen, providing a mechanistic basis for potential therapeutic interventions for renal ischemia.

Source: Eurekalert

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