In mice, high leptin levels suppress appetite, raise body temperature, and speed up metabolism, resulting in weight loss.
Moody's said the debt exposure and the need to inject capital highlighted "the firm's increased risk appetite and raises questions about the firm's risk governance".
"MF Global's increased exposure to European sovereign debt in peripheral countries and its need to inject capital into its broker-dealer subsidiary to rectify a regulatory capital shortfall highlights the firm's increased risk appetite and raises questions about the firm's risk governance," Al Bush, a Moody's senior analyst, said in a statement.
First, Mr. Codey would have had to do something that he has said he has no appetite for: raising a lot of money, and raising it fast, to compete with Mr. Kean, who has already raised nearly $1 million, and is expected to receive millions more from the Republican National Committee.
Because the administration had just raised taxes to help reduce the deficit, he said, there was no appetite for raising them further, and the economy was not strong enough to persuade Congress to impose employer-mandated health insurance payments in the face of business opposition.
Neither party has much appetite for raising taxes.
Just half a teaspoon added to cakes, biscuits or puddings fills the kitchen with an intoxicating scent guaranteed to stimulate the appetite and raise the spirits.
There appears to be an alternative source of cheaper funds available, which means that the appetite for raising money from savers seems to have waned.
Facing daunting deficits and with little appetite to raise taxes, a growing number of states are going where the money is to help balance their budgets.
But last year, Mr. Christie vetoed an effort to revive that tax, and this year, as the state's fiscal crisis eases and every legislative seat is up for election, there appears to be less appetite for raising the issue again.
