Results 11 to 20 of about 17,096 (169)

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

open access: yesJournal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima   +7 more
wiley   +1 more source

Cnicothamnus lorentzii (Asteraceae): morfoanatomía y arquitectura foliar

open access: yesLilloa, 2014
Ruiz, Ana I.; María E. Guantay; María I. Mercado; Graciela I. Ponessa. 2014. “Cnicothamnus lorentzii (Asteraceae): morfoanatomía y arquitectura foliar”. Lilloa 51 (2).
Ana I. Ruiz   +3 more
doaj  

A new, conspicuously pigmented Pyrrhulina (Teleostei: Characiformes: Lebiasinidae) from the Río Tigre, Loreto, Peru

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of Pyrrhulina is described based on morphological and molecular evidence. Pyrrhulina punctata is distinguished from all congeners by the presence of a series of 7 to 16 irregular blotches of dark pigmentation on the flanks, equally marked in juveniles and adult specimens, the presence of 26–28 lateral‐line scales, 17–21 maxillary
Andre Netto‐Ferreira   +4 more
wiley   +1 more source

Morfoanatomía y arquitectura foliar de Carica quercifolia (Caricaceae)

open access: yesLilloa, 2013
Ruiz, Ana I.; María E. Guantay; María I. Mercado; Graciela Ponessa. 2013. Lilloa 50 (2). “Morfoanatomía y arquitectura foliar de Carica quercifolia (Caricaceae)”.
Ana I. Ruiz   +3 more
doaj  

Expresión de la enzima 11? hidroxiesteroide deshidrogenasa tipo 2 en placenta a término de la gestante obesa

open access: yesRevista Colombiana de Endocrinología, Diabetes y Metabolismo, 2023
Contexto: un ambiente materno obesogénico puede impactar directamente tanto sobre la función placentaria como el desarrollo y crecimiento del feto. La enzima 11? hidroxiesteroide deshidrogenasa tipo 2 (11?-HSD2), ubicada en sincitiotrofoblasto, inactiva
Camila del Pilar Rodríguez   +3 more
doaj   +1 more source

Glucocorticoids modulate drug transporter function in human fetal brain endothelial cells

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend P‐glycoprotein and breast cancer resistance protein are the most prominent drug transporters at the fetal blood–brain barrier. We isolated primary human fetal brain endothelial cells from early and mid‐gestation cerebral microvessels and exposed them to glucocorticoids cortisol and dexamethasone in vitro.
Nikola Ivanovski   +3 more
wiley   +1 more source

Morfoanatomía y arquitectura foliar de Schinus areira (Anacardiaceae)

open access: yesLilloa, 2009
Ruiz, Ana I.; Mercado, M. I.; Guantay, M. E. y Ponessa, G. I. Morfoanatomía y arquitectura foliar de Schinus areira (Anacardiaceae). 2009. Lilloa 46 (1-2). Se describe la morfoanatomía y arquitectura foliar de una población de S. areira L.
Ana I. Ruíz   +3 more
doaj  

Maternal nutrition as a key determinant of placental and developing blood–brain barrier xenobiotic protective functions

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Suboptimal maternal nutrition alters placental and developing blood–brain barrier (BBB) protective function and is associated with increased fetal brain vulnerability. In the placenta, nutritional adversity may reduce the exchange surface area and promote meta‐inflammation, compromising barrier efficiency in a model‐ and context ...
Kristin L. Connor   +4 more
wiley   +1 more source

Morfología y anatomía de los órganos vegetativos de Zinnia peruviana (Asteraceae)

open access: yesLilloa, 2016
Mercado, María I.; Ana I. Ruiz; María E. Guantay; Patricia L. Albornoz; Graciela I. Ponessa. 2016. “Morfología y anatomía de los órganos vegetativos de Zinnia peruviana (Asteraceae)”. Lilloa 53 (2). Zinnia peruviana (L.) L.
María I. Mercado   +4 more
doaj  

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