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  • Title: Immunohistochemical studies on the distribution of endogenous digitalis-like substance (EDLS)-containing neurons in the rat hypothalamus, with special consideration on the possibility of their coexistence with posterior lobe hormones.
    Author: Ihara N, Yuri K, Yamada H, Sano Y.
    Journal: Arch Histol Cytol; 1988 Mar; 51(1):35-42. PubMed ID: 2458124.
    Abstract:
    The distribution of the perikarya of endogenous digitalis-like substance (EDLS)-containing neurons in the rat hypothalamus was studied by immunohistochemistry using digoxin and digitoxin antiserum. In addition, the possible coexistence of EDLS and posterior lobe hormones was examined using an immunohistochemical double-staining technique. Digoxin-like immunoreactive neurons were demonstrated in the paraventricular and supraoptic nuclei and other hypothalamic areas. However, digitoxin-like immunoreactive neurons were not detected in the hypothalamus. A portion of the digoxin-like immunoreactive neurons showed immunoreactivity for vasopressin or oxytocin. From these results, it is suggested that these digoxin-like immunoreactive neurons correspond to "EDLS-producing neurons," and that EDLS seems to act not only as a natriuretic substance but also as a neurohormone or neurotransmitter.
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