The story has been updated to include comments from the company's earnings conference call.

NEW YORK (GenomeWeb News) – CombiMatrix today said that revenues in the fourth quarter rose 25 percent year over year as revenues from core prenatal testing markets spiked 161 percent.

For the three months ended December 31, 2012, the Irvine, Calif.-based firm saw revenues increase to $1.5 million from $1.2 million a year ago.