TY  - JOUR
AU  - Kékesi, Adrienna Katalin
AU  - Kovács, Zsolt
AU  - Szilágyi, Nóra
AU  - Bobest, Mátyás
AU  - Szikra, Tamás
AU  - Dobolyi, Árpád
AU  - Juhász, Gábor Dénes
AU  - Palkovits, Miklós
TI  - Concentration of nucleosides and related compounds in cerebral and cerebellar cortical areas and white matter of the human brain
JF  - CELLULAR AND MOLECULAR NEUROBIOLOGY
J2  - CELL MOL NEUROBIOL
VL  - 26
PY  - 2006
IS  - 4-6
SP  - 833
EP  - 844
PG  - 12
SN  - 0272-4340
DO  - 10.1007/s10571-006-9103-3
UR  - https://m2.mtmt.hu/api/publication/1065485
ID  - 1065485
N1  - Department of Physiology and Neurobiology, Eötvös Loránd University, Budapest, Hungary            
            Department of Zoology, Berzsenyi Dániel College, Szombathely, Hungary            
            Research Group of Neurobiology, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest, Hungary            
            Markusovszky Hospital, Szombathely, Hungary            
            Laboratory of Neuromorphology, Hungarian Academy of Sciences, Semmelweis University, Tüzoltó-utca 58, Budapest 1094, Hungary            
            Cited By :14            
            Export Date: 25 October 2022            
            CODEN: CMNED            
            Correspondence Address: Palkovits, M.; Laboratory of Neuromorphology, Tüzoltó-utca 58, Budapest 1094, Hungary; email: palkovits@ana.sote.hu
AB  - 1. Nucleosides potentially participate in the neuronal functions of the brain. However, their distribution and changes in their concentrations in the human brain is not known. For better understanding of nucleoside functions, changes of nucleoside concentrations by age and a complete map of nucleoside levels in the human brain are actual requirements.

2. We used post mortem human brain samples in the experiments and applied a recently modified HPLC method for the measurement of nucleosides. To estimate concentrations and patterns of nucleosides in alive human brain we used a recently developed reverse extrapolation method and multivariate statistical analyses.

3. We analyzed four nucleosides and three nucleobases in human cerebellar, cerebral cortices and in white matter in young and old adults. Average concentrations of the 308 samples investigated (mean±SEM) were the following (pmol/mg wet tissue weight): adenosine 10.3±0.6, inosine 69.5±1.7, guanosine 13.5±0.4, uridine 52.4±1.2, uracil 8.4±0.3, hypoxanthine 108.6±2.0 and xanthine 54.8±1.3. We also demonstrated that concentrations of inosine and adenosine in the cerebral cortex and guanosine in the cerebral white matter are age-dependent.

4. Using multivariate statistical analyses and degradation coefficients, we present an uneven regional distribution of nucleosides in the human brain. The methods presented here allow to creation of a nucleoside map of the human brain by measuring the concentration of nucleosides in microdissected tissue samples. Our data support a functional role for nucleosides in the brain.
LA  - English
DB  - MTMT
ER  -