Relationships between seasonal (spring, summer, autumnal) thermal variations and cell proliferation in heterothermic vertebrates, as revealed by PCNA expression in the brain of adult Podarcis sicula
Among the literature reports on the possible effects of the seasonal cycle, made of temperature and photoperiod variations, on spontaneous proliferation in the brain of adult fresh water, earth-dwelling Anamnia and heterothermic Amniota, one autoradiographic study was conducted on experimentally brain injured and normal Rana esculenta, collected in the wild in spring and in autumn, and another immunohistochemical study was conducted on brain injured Podarcis hispanica caught in nature in summer.