Diadexus, Inc. - FORM 10-Q/A - EX-31.1 - CERTIFICATION OF CEO PURSUANT TO EXCHANGE ACT RULE 13A-14(A) - July 7, 2011

Attached files

file	filename
EX-10.4 - ADDENDUM NO. 3 TO THE MASTER SUPPLY AGREEMENT - BERKELEY HEARTLAB, INC. - Diadexus, Inc.	dex104.htm
EX-10.5 - PURCHASE AGREEMENT - HEALTH DIAGNOSTICS LABORATORY - Diadexus, Inc.	dex105.htm
EX-31.2 - CERTIFICATION OF CFO PURSUANT TO EXCHANGE ACT RULE 13A-14(A) - Diadexus, Inc.	dex312.htm
EX-10.1 - DISTRIBUTION AGREEMENT - INOVA DIAGNOSTICS, INC. - Diadexus, Inc.	dex101.htm
EX-10.2 - 2011 SPECIAL PROGRAMS ADDENDUM TO THE INOVA AGREEMENT - Diadexus, Inc.	dex102.htm
10-Q/A - AMENDMENT NO. 1 TO FORM 10-Q - Diadexus, Inc.	d10qa.htm
EX-10.6 - VOLUME DISCOUNT ADDENDUM TO THE PURCHASE AGREEMENT-HEALTH DIAGNOSTICS LABORATORY - Diadexus, Inc.	dex106.htm

Exhibit 31.1

CERTIFICATION

I, James P. Panek, certify that:

1.	I have reviewed this Amendment No. 1 to the Quarterly Report on Form 10-Q of diaDexus, Inc.; and

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.


Date: July 7, 2011		/s/ James P. Panek
		James P. Panek
		Interim President and Chief Executive Officer