Persistence of circannual rhythms in ground squirrels with lesions of the suprachiasmatic nuclei.
Persistence of circannual rhythms in ground squirrels with lesions of the suprachiasmatic nuclei.
复制标题
视交叉上核损伤的地松鼠的昼夜节律持续存在。
DOI：
10.1016/0006-8993(85)90589-x
复制
发表时间：
1985
期刊：
影响因子：
2.9
通讯作者：
Zucker,I
中科院分区：
文献类型：
--
作者：
Dark,J;Pickard,GE;Zucker,I
金背地松鼠（Spermophilus lateralis）持续完全消融视交叉上核（SCN），同时保持在恒定的条件下的光周期，温度和食物供应。SCN消融后，大多数松鼠术后观察长达3年，体重经历了正常的年周期。其他松鼠与类似的SCN损害证明了各种异常，在其circannual体重周期。松鼠对SCN消融的反应与产生损伤的年度周期阶段无关。SCN消融对年周期体质量周期的可变性质表明，SCN是年周期节律产生或表达的系统的非必要组成部分。
Golden-mantled ground squirrels (Spermophilus lateralis) sustained complete ablation of the suprachiasmatic nuclei (SCN) while being maintained under constant conditions of photoperiod, temperature and food availability. After SCN ablation, most squirrels observed for up to 3 years postsurgically underwent normal circannual cycles in body mass. Other squirrels with similar SCN damage evidenced various anomalies in their circannual body weight cycles. Response of squirrels to SCN ablation was not related to the phase of the annual cycle in which lesions were produced. The variable nature of the SCN ablation on circannual body mass cycles suggests that the SCN are non-essential components of the system underlying the generation or expression of circannual rhythms.