An Illinois experimental biotech company says it's closing its doors after failing to win U.S.

In another potential blow to the development of blood substitutes, new research warns against the increased risk of heart attack and death when such products are studied in patients undergoing elective surgery, according to a new study and related editorial published in the online edition of the Journal of the American Medical Association.

By Bruce Japsen, Chicago Tribune Apr.

Northfield Laboratories Inc. (Nasdaq: NFLD) announced that Ernest E.

Market Pulse News Alert for this AM, Stocks to Watch are: Cooper Minerals, Inc. (TSX-V: CQ), Apple Inc. (NASDAQ: AAPL), Hoku Scientific Inc. (NASDAQ: HOKU) and Northfield Laboratories Inc. (NASDAQ: NFLD). Investors need to be watching Cooper Minerals, Inc.