Results 41 to 50 of about 2,355,714 (247)

Spatial variation, more than ontogenetic, explains the diet of Bryconamericus exodon in two Pantanal rivers

Acta Limnologica Brasiliensia
Aim Studies of natural variations in fish diet allow, in turn, a better understanding of environmental changes along the hydrological cycle that can affect resources and, hence, biodiversity conservation.
Karoline Aparecida de Sena, Yzel Rondon Súarez   +1 more
doaj   +1 more source

Early Clinical, Imaging, and Pathological Characteristics of SRPK3/TTN‐Digenic Myopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective SRPK3/TTN‐digenic myopathy was recently established as a skeletal muscle myopathy caused by digenic inheritance. This study characterizes the early clinical presentation of SRPK3/TTN‐digenic myopathy in one previously reported and seven newly identified pediatric patients.
Rotem Orbach, Sandra Donkervoort, Carola Hedberg‐Oldfors, Giovanni Baranello, Dimah Saade, Precilla D'Souza, Ruchee Patel, Eva Michael, A. Reghan Foley, Diana Bharucha‐Goebel, S. Jin Haugland, Meghan McAnally, Omer Abdul Hamid, Katherine Chao, Ellen F. Macnamara, Alan H. Beggs, Anna Sarkozy, Juliane Mueller, Steven A. Moore, Richard S. Finkel, Cynthia J. Tifft, Francesco Muntoni, Anders Oldfors, Carsten G. Bönnemann   +23 more
wiley   +1 more source

Body size predicts ontogenetic nitrogen stable-isotope (δ 15N) variation, but has little relationship with trophic level in ectotherm vertebrate predators

Scientific Reports
Large predators have disproportionate effects on their underlying food webs. Thus, appropriately assigning trophic positions has important conservation implications both for the predators themselves and for their prey.
Francisco Villamarín, Timothy D. Jardine, Stuart E. Bunn, Adriana Malvasio, Carlos Ignacio Piña, Cristina Mariana Jacobi, Diogo Dutra Araújo, Elizângela Silva de Brito, Felipe de Moraes Carvalho, Igor David da Costa, Luciano Martins Verdade, Neliton Lara, Plínio Barbosa de Camargo, Priscila Saikoski Miorando, Thiago Costa Gonçalves Portelinha, Thiago Simon Marques, William E. Magnusson   +16 more
doaj   +1 more source

Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences

, 2021
Online repository of data and script for: https://www.frontiersin.org/articles/10.3389/fmars.2018.00317/full. Abstract: We analyze recently collected feather tissues from two species of seabirds, the sooty tern (Onychoprion fuscatus) and brown noddy ...
Tyler Gagne, Kyle S. Van Houtan
core   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

Trophic position of coexisting krill species: a stable isotope approach [PDF]

, 2014
Four krill species with overlapping functional biology coexist in Greenland waters. Here, we used stable isotopes to investigate and discuss their trophic role and mode of coexistence.
A Bode, MD Agersted, TG Nielsen, Nielsen, Torkel G., Bode, A. (Antonio), Nielsen, Torkel Gissel, Nielsen, T.G. (Torkel Gissel), Agersted, M.D. (Mette Dalgaard), Agersted, Mette Dalgaard, Bode, Antonio   +9 more
core   +2 more sources

A Magneto‐Mechanically Activated Nerve Guidance Conduit Promotes Peripheral Nerve Regeneration via TIMP1‐Mediated Membrane Tension Transfer

Advanced Functional Materials, EarlyView.
This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu, Yumin Wu, Xiang Gao, Tianlu Wang, Wanting Jia, Xueying Mei, Huanzhong Ji, Zongxi Wu, Yujie Liang, Xiang Li, Kan Li, Jingyuan Li, Guangsen Zheng, Guiqing Liao, Siyong Gao   +14 more
wiley   +1 more source

Ecosystem type shapes trophic position and omnivory in fishes [PDF]

, 2018
The identification of patterns in ecological characteristics of organisms is a central challenge in macroecology with a growing research interest. The goal of this study was to establish whether patterns in trophic ecology (trophic position and omnivory)
Amundsen, Per-Arne, Sanchez-Hernandez, Javier, Javier Sánchez‐Hernández, Per‐Arne Amundsen   +3 more
core   +1 more source

Engineered Nanoplatforms Targeting Activated Hepatic Stellate Cells for Liver Fibrosis Therapy via TGF‐β Axis Inhibition and Ferroptosis Induction

Advanced Healthcare Materials, EarlyView.
FeS‐VA@lanifibranor (FVL), an activated hepatic stellate cell (aHSC)‐targeted nanoplatform comprising vitamin A‐functionalized two‐dimensional iron sulfide nanosheets and lanifibranor, is engineered for precision therapy of liver fibrosis. FVL suppresses the TGF‐β signaling pathway by inhibiting SMAD2/3 phosphorylation and induces ferroptosis in aHSCs,
Yinuo Yang, Mengyao Mu, Ke Ren, Hui Liu, Pengju Ma, Yingqi Wang, Mengmeng Zhang, Xueli Xu, Wenzhe Li, Wenshuang Gao, Xiao Sun, Qiang Zhu   +11 more
wiley   +1 more source

Effects of spatial subsidies and habitat structure on the foraging ecology and size of geckos. [PDF]

PLoS ONE, 2012
While it is well established that ecosystem subsidies--the addition of energy, nutrients, or materials across ecosystem boundaries--can affect consumer abundance, there is less information available on how subsidy levels may affect consumer diet, body ...
Amy A Briggs, Hillary S Young, Douglas J McCauley, Stacie A Hathaway, Rodolfo Dirzo, Robert N Fisher   +5 more
doaj   +1 more source