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. Author manuscript; available in PMC: 2009 Jun 30.
Published in final edited form as: J Neurosci Methods. 2008 Mar 27;171(2):279–287. doi: 10.1016/j.jneumeth.2008.02.022

Fig. 3.

Fig. 3

Confirmation of microarray gene expression trends by relative real-time PCR, according to the second criterion, correlation to ABR: (A) linear regression of GABA-B receptor 1 gene expression to the ABR threshold: A linear regression between the microarray LSR and ABR thresholds showed that Gabbr1 p < 0.01, 0.03 and 0.01 for ABR frequency 12, 24 and 32 kHz, respectively. (B) GABA-B receptor 1, the relative real-time PCR differed for Gabbr1, in the old mild presbycusis group Gabbr1 was found at decreased levels, whereas elevated levels were observed in the middle aged and old severe presbycusis mice relative to the young adult, good hearing controls. S.E.M. is indicated. MA = middle age, MP = old mild presbycusis, SP = old severe presbycusis.