Strain differences to effects of aging on concentrations of amino acids in cerebrospinal fluid between Sprague Dawley rat and Wistar Kyoto rat.
Age-related alterations and differences of weights and those of amino acid concentrations in the cerebrospinal fluid (CSF) were evaluated between Sprague Dawley (SD) rats and Wistar Kyoto (WKY) rats from eight to twenty weeks of age. The weights of SD rats were heavier than WKY rats at all ages. The age-related alterations of the CSF concentration of many amino acids within each strain were significant but showed no significant trend with age. Between the strains, the concentration differences of excitatory and inhibitory amino acids were not frequent although the concentrations of arginine, alanine and threonine were significantly higher in SD rats than in WKY rats. These results suggest that the different CSF concentrations of amino acids may relate to characteristics of rat strains.
Takasugi
Yoshihiro
Y
Department of Anesthesiology, School of Medicine, Kinki University, Osaka-sayama, Japan.
Kawata
Keiji
K
Okuda
Takahiko
T
Koga
Yoshihisa
Y
Mizuguchi
Nobuyuki
N
Yamanaka
Shigeaki
S
Watanabe
Shinsuke
S
D000375:Aging / Q000134:cerebrospinal fluid* / Q000502:physiology*; D000596:Amino Acids / Q000134:cerebrospinal fluid*; D000818:Animals; D001120:Arginine / Q000134:cerebrospinal fluid; D001835:Body Weight; D008297:Male; D051381:Rats; D011921:Rats, Inbred WKY / Q000134:cerebrospinal fluid*; D017207:Rats, Sprague-Dawley / Q000134:cerebrospinal fluid*; D013912:Threonine / Q000134:cerebrospinal fluid
D000596:Amino Acids; D013912:Threonine; D001120:Arginine