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  • Title: [Development in ontogeny of the effect of ACTH fragment 4-7 on rat learning].
    Author: Zubova OB, Buduk-ool LK.
    Journal: Zh Evol Biokhim Fiziol; 1982; 18(3):310-3. PubMed ID: 6285645.
    Abstract:
    Studies have been made of the effect of ACTH fragment 4-7 on learning in rats in early postnatal ontogenesis, as well as of the possibility of preservation of early learning during administration of this peptide to adult animals. It was shown that conditioned reaction of active avoidance practically cannot be formed in normal 13-15-day animals; however, administration of ACTH 4-7 increases the number of animals exhibiting adequate reactions. Weak effect of ACTH 4-7 in 12-15-day animals, in older ones (20-24 days) is changed by a significant stimulating effect.
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