Results 41 to 50 of about 83,565 (267)

Species' traits and food‐web complexity interactively affect a food web's response to press disturbance

Ecosphere, 2016
Given current levels of biodiversity loss and environmental change, studies of how food webs respond to disturbance should broaden their focus beyond short‐term disturbances to explore the effects of long‐term, “press” disturbances.
K. L. Wootton, D. B. Stouffer
doaj   +1 more source

Spatiotemporally Ultrasound‐Controlled Nanoparticles Reprogramming Immunostimulatory Antigen‐Presenting Cancer‐Associated Fibroblasts to Enhance Cancer Immunotherapy

Advanced Science, EarlyView.
We developed an ultrasound‐controlled biomimetic nanoplatform, mRNA/V@M NPs, to co‐deliver CD74 mRNA and V‐9302 for fibrotic TNBC therapy. CD74 mRNA reprograms myCAFs into antigen‐presenting apCAF cells through the CD74‐MHC II pathway, while V‐9302 induces ICD and activates MHC I‐CD8+ T cell immunity.
Chen Ai, Weikai Sun, Yuxuan Zhao, Daqian Sun, Ting Meng, Yafei Qi, Fengyang Jiang, Jintang Sun, Zhiliang Gao, Dexin Yu   +9 more
wiley   +1 more source

Concentration of Metals in Native and Invasive Species of Fish in the Fluvial-Lagoon-Deltaic System of the Palizada River, Campeche

Fishes, 2021
Aquatic organisms, such as fish, are important indicators of the bioavailability of metals in coastal environments, demonstrating the capacity of different species to bioaccumulate these metallic elements.
María del Refugio Castañeda-Chávez, Fabiola Lango-Reynoso, Gabycarmen Navarrete-Rodríguez, Armando Toyokazu Wakida-Kusunoki   +3 more
doaj   +1 more source

Harmonizing Rigidity and Flexibility: Embedding COF Quantum Dots Into Extracellular Matrix Gel as Carbon Monoxide Depot for Acoustically Triggered Time‐Programmable Anti‐Infective Therapy

Advanced Science, EarlyView.
A rigid‑flexible integrated CO depot is engineered by embedding rigid COFQDs into a flexible ECM gel network. The rigid framework enables high‑capacity CO storage and sonodynamic bacterial killing, while the flexible ECM gel controls sustained CO release, collectively eradicating multidrug‑resistant infection and promoting scarless healing.
Baohong Sun, Fang Han, Chunxiao Zhu, Zhiyuan Yang, Haoru Wang, Jinpei Mei, Jie Chen, Jingwen Zhu, Zihan Bo, Taju Wu, Xiaogang Zhou, Tao Ma, Yutian Su, Youhui Lin   +13 more
wiley   +1 more source

Trophic levels of fish species of commercial importance in the Colombian Caribbean

Revista de Biología Tropical, 2011
Ecological studies on commercial important fish species are of great value to support resource management issues. This study calculated trophic levels of those Colombian Caribbean fish species whose diet has been locally described.
Camilo B García, Cristian Camilo Contreras   +1 more
doaj  

Nitrogen isotope composition of amino acids reveals trophic partitioning in two sympatric amphipods

Ecology and Evolution, 2020
According to ecological theory, two species cannot occupy the same niche. Using nitrogen isotope analyses (δ15N) of amino acids, we tested the extent to which two sympatric deposit‐feeding amphipods, Monoporeia affinis and Pontoporeia femorata, partition
Matias Ledesma, Elena Gorokhova, Henry Holmstrand, Andrius Garbaras, Agnes M. L. Karlson   +4 more
doaj   +1 more source

Long-Term Variations of Biogenic Elements and Nutritional Status in Daya Bay, Northern South China Sea

Journal of Marine Science and Engineering, 2023
This study explored the variations in the characteristics of the trophic structure of Daya Bay island waters over the last four decades based on the survey findings and research data on biogenic elements (dissolved inorganic nitrogen (DIN), NO2−, NO3 ...
Zhicheng Guo, Yayuan Xiao, Yong Liu, Peng Wu, Chunhou Li   +4 more
doaj   +1 more source

Human Dental Pulp Stem Cell Secretome Restores Ischemic Stroke–Impaired Motor and Cognitive Functions by Reprogramming Redox and Inflammatory Signaling

Advanced Science, EarlyView.
Human dental pulp stem cell secretome emerges as a cell‐free therapeutic strategy for ischemic stroke by reprogramming redox and inflammatory signaling. hDPSC secretome‐derived antioxidant and immunomodulatory factors suppress the TLR4–NOX–ROS–NF‐κB axis, reduce microglial inflammatory responses and apoptosis, and promote neurogenesis, angiogenesis ...
Kyung‐Joo Seong, Sehoon Park, Sun‐Woong Bae, Daseul Kim, Jin Ho Lee, Won‐Seok Choi, Zee‐Yong Park, Ji‐Yeon Jung, Won‐Jae Kim   +8 more
wiley   +1 more source

Fatty Acids as a Tool to Understand Microbial Diversity and Their Role in Food Webs of Mediterranean Temporary Ponds

Molecules, 2014
Temporary Mediterranean ponds are complex ecosystems which support a high diversity of organisms that include heterotrophic microorganisms, algae, crustaceans, amphibians and higher plants, and have the potential to supply food and a resting place to ...
Carla C. C. R. de Carvalho, Maria-José Caramujo   +1 more
doaj   +1 more source

Isotopic niche differs between seal and fish‐eating killer whales (Orcinus orca) in northern Norway

Ecology and Evolution, 2020
Ecological diversity has been reported for killer whales (Orcinus orca) throughout the North Atlantic but patterns of prey specialization have remained poorly understood.
Eve Jourdain, Clare Andvik, Richard Karoliussen, Anders Ruus, Dag Vongraven, Katrine Borgå   +5 more
doaj   +1 more source