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Citrus fruits found to block the formation of kidney cysts

A new study published today in the British Journal of Pharmacology, has identified that a component of grapefruit and other citrus fruits, naringenin, successfully blocks the formation of kidney cysts.

Known as polycystic kidney disease, this is an inherited disorder which leads to the loss of kidney function, high blood pressure and the need for dialysis. Few treatment options are currently available.

The team of scientists from Royal Holloway University, St George's, University of London and Kingston University London used a simple, single-celled amoeba to identify that naringenin regulates the PKD2 protein responsible for polycystic kidney disease and as a result, blocks formation of cysts.

"This discovery provides an important step forward in understanding how polycystic kidney disease may be controlled," said Professor Robin Williams from the School of Biological Sciences at Royal Holloway.

To test how this discovery could apply in treatments, the team used a mammalian kidney cell-line, and triggered the formation of cysts in these cells. They were then able to block the formation of the cysts by adding naringenin and saw that when levels of the PKD2 protein were reduced in the kidney cells, so was the block in cyst formation, confirming that the effect was connected.

"Indeed, this study provides a good example of how chemicals identified in plants can help us develop new drugs for the treatment of disease," added Professor Debbie Baines from St George's, University of London.

Source: medicalxpress.com

Publication date: 10/4/2013


 


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