@article {Mizukoshi:September 2005:0161-6412:644, author = "Mizukoshi, Genki", author = "Katsura, Ken-ichiro", author = "Katayama, Yasuo", title = "Urinary 8-hydroxy-2-deoxyguanosine and serum S100beta in acute cardioembolic stroke patients", journal = "Neurological Research", volume = "27", year = "September 2005", abstract = "Objective: Our aim was to explore whether free radical damage against DNA exists or not, in human stroke patients.

Method: Urinary 8-hyroxy-2prime-deoxyguanosine (8-OHdG) and serum S100beta were measured in acute cardioembolic stroke patients with relatively severe symptoms. During days 3–5 after the onset of stroke, urine was collected for 24 hours for 8-OHdG measurement and serum was sampled for S100beta analysis every day.

Results: The total urinary 8-OHdG content was significantly higher in stroke patients than in non-stroke inpatients (p<0.01). The average value was more than twice the value of that of non-stroke inpatients. The total urinary 8-OHdG contents showed significant correlation (r=0.87, p<0.01) with serum S100beta values, which are reportedly related to brain damage.

Discussion: These findings suggest that urinary 8-OHdG in acute stroke patients may originate from brain tissue, and DNA damage also exists in the brain of stroke patients.", pages = "644-646(3)", url = "http://www.ingentaconnect.com/content/maney/nres/2005/00000027/00000006/art00013" doi = "doi:10.1179/016164105X25153" }