What difference exists in the pancreas of mammals with sanguivorous diet? A morphological, stereological and immunohistochemical study of the pancreatic islets of the hematophagous bat Diphylla ecaudata

Machado-Santos, Clarice; Aquino, Júlio César Fraulob; Mikalauka, Jefferson Simanas; Figueiredo, Marcelo Abidú; Mendes, Rosa Maria M.; Sales, Armando

doi:10.1016/j.regpep.2013.03.015

Cited by 6 publications

(4 citation statements)

References 41 publications

(73 reference statements)

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“…Insulin-immunoreactive (IR) cells occur in the middle of the islets, and glucagon-IR and somatostatin-IR cells are located peripherally; somatostatinsecreting cells are also found in isolation. As for the volume density of endocrine cells, it is larger for β cells (54.8%) and then decreases for α cells (16.2%) and δ cells (14.3%—Machado-Santos et al 2013).…”

Section: Form and Functionmentioning

confidence: 95%

“…The pancreas is in the abdominal cavity; the right lobe is close to and parallel to the descending duodenum, and the left lobe transversely extends caudally to the stomach. The mean mass of the pancreas is 0.1 g ( n = 6; mean body mass = 24.4 g—Machado-Santos et al 2013). It is covered by a thin capsule of loose connective tissue that extends into the organ forming a series of septa, which subdivide the gland into visibly distinct lobes.…”

Section: Form and Functionmentioning

confidence: 99%

“…These islets are irregular in shape and easily identified by their eosinophilic staining properties. The average number (± SD ) of Islets of Langerhans is 23,900 ± 9,770.54, with an average diameter of 56.94 µm, and a mass of about 0.48 mg, their volumetric density is 4.1% ( n = 6 males—Machado-Santos et al 2013). Insulin-immunoreactive (IR) cells occur in the middle of the islets, and glucagon-IR and somatostatin-IR cells are located peripherally; somatostatinsecreting cells are also found in isolation.…”

Section: Form and Functionmentioning

confidence: 99%

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Diphylla ecaudata(Chiroptera: Phyllostomidae)

et al. 2023

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This account represents a thorough update of Mammalian Species 227 on the subject species by A. M. Greenhall, U. Schmidt, and G. Joermann, incorporating 124 relevant references published since 1984. Diphylla ecaudata Spix, 1823, a medium-sized bat and the smallest of three species in the Desmodontinae, is commonly called the hairy-legged vampire bat. This hematophagous bat is distributed from eastern Mexico through Central America and into South America, with a single report in south Texas, United States. Diphylla ecaudata is restricted to habitats in tropical and subtropical regions and it occurs from sea level to 1,900 m in these areas. It primarily roosts in caves. Diphylla ecaudata is listed as a species of “Least Concern” (LC) by the International Union for Conservation of Nature.

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Section: Form and Functionmentioning

confidence: 95%

Section: Form and Functionmentioning

confidence: 99%

Section: Form and Functionmentioning

confidence: 99%

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Diphylla ecaudata(Chiroptera: Phyllostomidae)

et al. 2023

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“…The pancreas of all mammals has a similar structure, but a specialized diet is accompanied by a number of morphological features [15].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of morphometric parameters of α-endocrinocytes of mammal pancreas

et al. 2020

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In domestic animals in postnatal ontogenesis, statistically significant changes in the number of α-endocrinocytes and the values of their nuclear-cytoplasmic ratio in the endocrine islets of pancreas have been revealed, which reflects the species and age-related dynamic processes of its morphofunctional development in animals. In cattle and small cattle (sheep), pigs, dogs and cats, two critical periods of postnatal development of the pancreas have been identified. The first critical period is observed from the birth to the age of three months. It is associated with an alimentary factor: the transition from a dairy diet to roughage, which leads to a decrease in the values of morphometric indicators of the pancreas and the restructuring of the functional work of the organ as a whole. The second critical period is registered in animals during puberty, that is, at 6 months of age, which is associated with the release of hormonal inducers aimed primarily at the implementation of physiological changes in the body.

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