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dc.contributor.author
Rodriguez Peña, Nelly
dc.contributor.author
Price, Edwin R.
dc.contributor.author
Caviedes Vidal, Enrique Juan Raul
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dc.contributor.author
Flores Ortiz, Cesar M.
dc.contributor.author
Karasov, William H.
dc.date.available
2018-09-21T15:56:22Z
dc.date.issued
2016-03
dc.identifier.citation
Rodriguez Peña, Nelly; Price, Edwin R.; Caviedes Vidal, Enrique Juan Raul; Flores Ortiz, Cesar M.; Karasov, William H.; Intestinal paracellular absorption is necessary to support the sugar oxidation cascade in nectarivorous bats; Company of Biologists; Journal of Experimental Biology; 219; 6; 3-2016; 779-782
dc.identifier.issn
0022-0949
dc.identifier.uri
http://hdl.handle.net/11336/60561
dc.description.abstract
We made the first measurements of the capacity for paracellular nutrient absorption in intact nectarivorous bats. Leptonycteris yerbabuenae (20 g mass) were injected with or fed inert carbohydrate probes L-rhamnose and D(+)-cellobiose, which are absorbed exclusively by the paracellular route, and 3-O-methyl-D-glucose (3OMD-glucose), which is absorbed both paracellularly and transcellularly. Using a standard pharmacokinetic technique, we collected blood samples for 2 h after probe administration. As predicted, fractional absorption (f) of paracellular probes declined with increasing Mr in the order of rhamnose (f=0.71)>cellobiose ( f=0.23). Absorption of 3OMD-glucose was complete (f=0.85; not different from unity). Integrating our data with those for glucose absorption and oxidation in another nectarivorous bat, we conclude that passive paracellular absorption of glucose is extensive in nectarivorous bat species, as in other bats and small birds, and necessary to support high glucose fluxes hypothesized for the sugar oxidation cascade.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Company of Biologists
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
3-O-Methyl-D-Glucose
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Bioavailability
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D-Cellobiose
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Intestine
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L-Rhamnose
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Leptonycteris Yerbabuenae
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Nutrient Absorption
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Sugars
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Intestinal paracellular absorption is necessary to support the sugar oxidation cascade in nectarivorous bats
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-20T13:10:47Z
dc.journal.volume
219
dc.journal.number
6
dc.journal.pagination
779-782
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Rodriguez Peña, Nelly. University of Wisconsin; Estados Unidos. Universidad Autónoma de Tlaxcala; México
dc.description.fil
Fil: Price, Edwin R.. University of Wisconsin; Estados Unidos
dc.description.fil
Fil: Caviedes Vidal, Enrique Juan Raul. University of Wisconsin; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina
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Fil: Flores Ortiz, Cesar M.. Universidad Nacional Autónoma de México; México
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Fil: Karasov, William H.. University of Wisconsin; Estados Unidos
dc.journal.title
Journal of Experimental Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1242/jeb.133462
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://jeb.biologists.org/content/219/6/779
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