EXHIBIT 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the reference to our firm under the caption “Experts” and to the use of our report dated March 22, 2007 (except for Notes M and N as to which the date is July 9, 2007), with respect to the consolidated financial statements of Athersys, Inc. included in the Registration Statement (Form S-1) and related Prospectus of BTHC VI, Inc. for the registration of 18,508,251 shares of its common stock.
/s/ ERNST & YOUNG LLP
Cleveland, Ohio
July 9, 2007
July 9, 2007