Guzmán J A, Piezzi R S, Pelzer L E, Scardapane L, Domínguez S
Acta Physiol Lat Am. 1977;27(1):31-6.
Pineal glands of vizcachas collected from their natural habitat were studied. Hydroxyindole-O-methyl transferase (HIOMT) activity showed a great individual dispersion. However, the enzyme activity was significantly higher in males than in females. Serotonin was also assayed in the glands. It did not show significant differences between both sexes. The results are discussed in relation to the natural life conditions of this rodent.
对从其自然栖息地采集的绒鼠松果体进行了研究。羟吲哚-O-甲基转移酶（HIOMT）活性显示出很大的个体差异。然而，该酶活性在雄性中显著高于雌性。还对松果体中的血清素进行了测定。两性之间未显示出显著差异。结合这种啮齿动物的自然生活条件对结果进行了讨论。
