title: [Reptile brain cerebrosides and cerebroside sulfates].
abstract: Studies have been made on the content of cerebrosides and cerebroside sulfates, as well as on their fatty acid composition in the brain of reptiles, subclass Anapsida (tortoises Emys orbicularis and Testudo horsfieldi) and subclass Lepidosauria (lizards Agama caucasica, A. sanguinolenta, Phrynocephalus mystaceus and snake Natrix tesselata). Total content of cerebrosides and cerebroside sulfates is higher in the brain of Lepidosaurians than in that of Anapsids. In the brain of tortoises, the content of cerebroside fraction with hydroxy fatty acids is significantly higher than of the fraction with normal fatty acids, which is also typical of the brain of homoiothermic mammals and birds. In the brain of Lepidosaurians, concentration of hydroxycerebrosides is considerably lower than of cerebrosides with normal fatty acids, which is similar to lower vertebrates -- amphibians and fishes. Low content of hydroxycerebrosides was found in all the Lepidosaurians investigated, irrespectively of their ecological conditions, being therefore dependent on their phylogenetic position. The composition of fatty acids, both normal and hydroxyderivates, as well as that of glycolipids from the brain of Anapsids and Lepidosaurians is essentially similar. However, some interspecific differences were noted in the pattern of fatty acids of cerebrosides and cerebroside sulfates of the brain, which concern the content of saturated and long chain fatty acids.
mesh_terms: D000818:Animals; D001923:Brain Chemistry; D002554:Cerebrosides / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D005227:Fatty Acids / Q000032:analysis; D008116:Lizards; D008322:Mammals / Q000378:metabolism; D012104:Reptiles / Q000378:metabolism*; D012911:Snakes; D013045:Species Specificity; D013431:Sulfates / Q000032:analysis*; D014426:Turtles
chemical_list: D002554:Cerebrosides; D005227:Fatty Acids; D013431:Sulfates
vernacular_title: Tserebrozidy i tserebrozid-sul'faty golovnogo mozga reptiliĭ.