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  • Title: An immunocytochemical and ultrastructural study of the larval anterior intestine of the frog Rana temporaria, with especial reference to endocrine cells.
    Author: Bodegas ME, Villaro AC, Burrell MA, Rovira J, Valverde E, Ortiz De Zárate A, Sesma P.
    Journal: Tissue Cell; 1997 Oct; 29(5):549-59. PubMed ID: 9364804.
    Abstract:
    Endocrine cells of the larval intestine of Rana temporaria tadpoles have been identified by argyrophilic, immunocytochemical and electron-microscopical techniques. Scarce endocrine cells have been found in both the short non-absorptive zone immediately following the stomach, and in the rest of the anterior intestine. Endocrine cells are frequently seen to extend a cytoplasmic process towards the lumen. Immunoreactivity for serotonin, somatostatin, bombesin and cholecystokinin-8 has been detected. According to the ultrastructural traits of the endocrine granules, three larval intestinal endocrine populations have been differentiated.
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