Medicine and Health Sciences Commons^™

P11 Expression And Pet In Bipolar Disorders, Lei Zhang, Cheng-Ta Li, Tung-Ping Su, Xian-Zhang Hu, Ruth A. Lanius, Maree J. Webster, Ming-Yi Chung, Ying-Sheue Chen, Ya-Mei Bai, Jeffery L. Barker, James E. Barrett, Xiao-Xia Li, He Li, David M. Benedek, Robert Ursano

Uniformed Services University of the Health Sciences

Background: Bipolar disorder (BD) is a common mental disorder, subdivided into BD-I and BD-II. Currently, few biomarkers differentiate BD-I from BD-II. However, it is suggested that peripheral blood mononuclear cell (PBMC) mRNA levels of p11 and positron emission tomography (PET) might be potential biomarkers for BD.

Methods: Healthy controls (HCs), BD-I, and BD-II patients in remission (n = 20 in each group) underwent a resting PET study with the radiotracer [¹⁸F]-2-deoxy-2-fluoro-_D-glucose (¹⁸F-FDG). PBMC p11 mRNA levels were determined by quantitative real-time PCR.

Results: Comparing BD patients to HCs, normalized glucose metabolism (NGM) was higher …

Anxiety Phenotype In Mice That Overexpress Protein Kinase A, Margaret F. Keil, George Briassoulis, Nirmal Gokarn, Maria Nesterova, T. John Wu, Constantine A. Stratakis

Uniformed Services University of the Health Sciences

The role of cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) signaling in the molecular pathways involved in fear and memory is well established. Prior studies in our lab reported that transgenic mice with an inactivating mutation in Prkar1a gene (codes for the 1-alpha regulatory subunit (R1α) of PKA) exhibited behavioral abnormalities including anxiety and depression. In the present study, we examined the role of altered PKA signaling on anxiety-like behaviors in Prkar1a^+/- mice compared to wild-type (WT) littermates. The elevated plus maze (EPM) and marble bury (MB) tests were used to assess anxiety-like behavior. The hotplate test was performed to …