Harman, who suffers from kidney disease herself and has had two transplants, has taken the Poker Players International "All-In for a Cure" pledge and will donate one percent of her earnings to The NephCure Foundation, which funds research into the debilitating kidney diseases Nephrotic Syndrome and Focal Segmental Glomerulosclerosis (FSGS).

"Kidney disease is extremely difficult," said Harman. "It is invisible and it affects kids and adults alike. NephCure is trying to find an answer and I'm here to help by joining 'All-in for a Cure.'"

NephCure has dedicated over $6 million to research of FSGS and Nephrotic Syndrome, two conditions that affect the tiny filtering mechanisms in the kidney.

Former NBA star Alonzo Mourning suffered from FSGS before receiving a kidney transplant. The cause for these diseases is unknown and there is no cure.

"Having (Harman) involved in this program is a tremendous benefit to everyone and I expect it to lead to more players coming on board," said PPI's Marketing and Player Development Leader Eric Siegel, whose son suffers from Nephrotic Syndrome.

"She understands the responsibility to give back. By doing so hopefully we can find a cure for this horrible disease that affects thousands of people."

Known for playing in some of the world's biggest cash games, Harman has more than $2.3 million in career tournament earnings, including two WSOP wins and two World Poker Tour final tables.

A number of other players, including 2009 PokerStars EPT London High Roller winner Matt Glantz, have also taken the pledge.

For more information on the organization and how to make a donation, click through to NephCure's website.