Results 21 to 30 of about 2,732 (118)

O FENÓTIPO DUFFY NA DOENÇA FALCIFORME

open access: yesHematology, Transfusion and Cell Therapy, 2023
Introdução/objetivos: O antígeno Duffy, conhecido como ACKR1 (Atypical Chemokine Receptor 1), é uma glicoproteína de membrana que atua como um receptor para quimiocinas pró-inflamatórias.
LB Musial   +4 more
doaj   +1 more source

Melanism in salamanders: effects of insularity, sex and size on dorsal colouration in Salamandra salamandra

open access: yesJournal of Zoology, EarlyView.
In this study we tested the effects of insularity on amphibian colouration using the fire salamander as a model system. Although increased melanism was not a consistent pattern across all islands, salamanders from one island exhibited higher proportions of black pigmentation than mainland populations, while insular populations overall showed reduced ...
L. Alarcón‐Ríos   +2 more
wiley   +1 more source

Prenatal diagnosis of cardiac rhabdomyoma: implications for predicting tuberous sclerosis complex and guiding perinatal management

open access: yesUltrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 88-98, July 2026.
ABSTRACT Objective To identify prenatal predictors of tuberous sclerosis complex (TSC) in fetuses with one or more cardiac rhabdomyomas (CR), evaluate an integrated multimodal diagnostic workflow using fetal magnetic resonance imaging (MRI) and trio whole‐exome sequencing (trio‐WES) and characterize perinatal outcomes.
X. Cai   +8 more
wiley   +1 more source

Relationships between residual feed intake and feedlot performance, profitability, and carcass traits in Brahman cattle

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
The present study aimed to evaluate the feedlot performance, profitability and carcass traits of Brahman bulls classified according to the residual feed intake (RFI).
R. Favero   +7 more
doaj   +1 more source

ÍNDICE DE HERDABILIDADE NA ANTROPOMETRIA E LATERALIDADE DE GÊMEOS DO MUNICÍPIO DE RIO DE JANEIRO

open access: yesRevista de Educação Física, 2009
A competitividade no âmbito do esporte de alto nível tem despertado interesse por pesquisas no campo da genética. O objetivo geral deste estudo foi verificar o índice de herdabilidade nas variáveis antropométricas e lateralidade em gêmeos do município de
Glauber Lameira de Oliveira   +4 more
doaj   +1 more source

Reduced fecundity associated with Wolbachia infection in a Neotropical drosophilid Redução da fecundidade associada à infecção por Wolbachia em um drosofilídeo Neotropical

open access: yesEcological Entomology, Volume 51, Issue 3, Page 475-488, June 2026.
Using multiple infected and uninfected Drosophila sturtevanti lines, we investigated (i) the impact of Wolbachia on fecundity and (ii) its effects relative to antibiotic treatment. Based on over 1680 dissected ovaries, fecundity was similar between infected and uninfected flies.
Letícia Carlesso de Paula Sena   +4 more
wiley   +1 more source

CORRELAÇÃO ENTRE A FENOTIPAGEM E A GENOTIPAGEM PARA O SISTEMA DUFFY EM PACIENTES NEUTROPÊNICOS

open access: yesHematology, Transfusion and Cell Therapy, 2021
Introdução: Descrito pela primeira vez em 1950, o sistema de grupo sanguíneo Duffy é caracterizado por uma glicoproteína (ACKR1) expressa na membrana celular dos eritrócitos, bem como em outros tecidos.
TAB Costa   +7 more
doaj   +1 more source

Evolution of Reproductive Plasticity in a Seasonal Tropical Environment

open access: yesEcology Letters, Volume 29, Issue 5, May 2026.
We reveal widespread occurrence of seasonal reproductive plasticity, including reproductive diapause, in Nymphalid butterflies in a seasonal rainforest in the Amazon. This highlights that, not only in temperate but also tropical habitats, seasonality is an important driver of plastic life history strategies. ABSTRACT Seasonality can drive the evolution
Marcus Hicks   +7 more
wiley   +1 more source

Anti‐Predation and Size‐Dependent Gas Exchange Functions of Amazonian Architect Cicada Towers

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Clay towers built by cicada nymphs before metamorphosis are poorly understood. We experimentally show that towers of the Amazonian cicada Guyalna chlorogena reduce predation risk and exhibit size‐dependent growth responses to gas exchange obstruction, supporting their interpretation as adaptive extended phenotypes.
Marina Mega   +5 more
wiley   +1 more source

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