One millisecond of light suffices to suppress nighttime pineal melatonin synthesis in rats.
نویسندگان
چکیده
The effect of a single high-intensity light pulse with a duration of 1 ms on nighttime pineal activity of male Sprague-Dawley rats was investigated. 10 minutes after light exposure pineal N-actyltransferase activity and melatonin content were significantly reduced. These results show that the rat pineal is capable of responding to very short light flashes of high intensity.
منابع مشابه
بررسی ریتم شبانه آنزیم ان - استیل ترانسفراز در غده پینه آل موش صحرائی
Living organisms have multiple biological rhythms. Some of these rhythms are endogenous and some are under the influence of light and dati cydes during 24-hours. Nowadays periodic changes in melatonin secretion from pineal gland and changes in N-acetyl transferase (NAT) activity which influence the melatonin secretion rate has been acknowledged as a basic rhythm. In this study NAT activity in p...
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ورودعنوان ژورنال:
- Neuroscience letters
دوره 98 3 شماره
صفحات -
تاریخ انتشار 1989