Abstract #0735
            Lithium brain absorption in the elderly versus younger patients with bipolar disease.
                      Maria Otaduy                     1                    , Ivan Aprahaiam                     2                    , 						Rodolfo Ladeira                     2                    , Rodrigo Machado-Vieira                     3,4                    , 						Claudia Leite                     5                    , Wagner Gattaz                     6                    , 						and Orestes Forlenza                     2          
            
            1
           
           Laboratory of Magnetic Resonance in 
						Neuroradiology, LIM 44, Institute and Department of 
						Radiology, University of So Paulo, So Paulo, So 
						Paulo, Brazil,
           
            2
           
           Laboratory 
						of Neuroscience, LIM 27, Institute and Department of 
						Psychiatry, University of So Paulo, So Paulo, So 
						Paulo, Brazil,
           
            3
           
           Laboratory 
						of Neuroscience, LIM 27, Institute and Department of 
						Psychiatry, University of So Paulo, So Paulo, Brazil,
           
            4
           
           Department 
						of Health and Human Services, National Institute of 
						Mental Health, National Institutes of Health, Bethesda, 
						MD, United States,
           
            5
           
           Laboratory 
						of Magnetic Resonance in Neuroradiology, LIM 44, 
						Institute and Department of Radiology, University of So 
						Paulo, Sao Paulo, Brazil,
           
            6
           
           Laboratory 
						of Neuroscience, LIM 27, Institute and Department of 
						Psychiatry, University of So Paulo, So Paulo, Sao 
						Paulo, Brazil
          
            
          In this study we used 7Li-MRS to quantify brain lithium 
						concentration in patients with bipolar disease under 
						lithium treatment. The purpose of this study was to 
						evaluate if lithium brain absorption is different in 
						young (20-40yrs) from elderly (60-80yrs) patients. For 
						that we evaluated the mean brain to plasma lithium ratio 
						for both groups and found it to be the same. Noteworthy, 
						within the younger group we found a negative correlation 
						between brain to plasma lithium ratio and age that was 
						not observed for the elderly group.
         
				
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