Vol. 21 (4) 2000 Neuro endocrinology letters

Daytime pineal gland activation in rats with colon tumors induced by 1,2-dimethylhydrazine(3).

: OBJECTIVES: Intact rats and rats with 1,2-dimethylhydrazine induced tumors of large intestine were used in experiments. Previously, blood melatonin concentration in these tumor-bearing rats was shown to increase at night, but not in the daytime. METHODS: The extracellular microelectrode registration of rat daytime pineal gland activit.....