Results 71 to 80 of about 404,720 (299)

Gut Microbiota‐Derived Anandamide Mediates the Therapeutic Effects of Urolithin A on Alcohol‐Induced Cognitive and Social Dysfunction via CB1R‐DRD2‐RAP1 Signaling Axis

Advanced Science, EarlyView.
This study reveals that Urolithin A (UA) counteracts alcohol‐induced cognitive and social dysfunction (AICSD) via a gut microbiome‐dependent mechanism. UA‐enriched Bacteroids sartorii and Parabacteroids distasonis elevate anandamide (AEA), which activates the CB1R‐DRD2‐Rap1 signaling cascade to drive synaptic repair and reduce neuroinflammation ...
Hongbo Zhang, Zibin Li, Yao Xiao, Ji Bian, Caian He, Chao Liu, Lan Gong, Lin Han, Zhigang Liu, Min Wang   +9 more
wiley   +1 more source

Detecting the Temporal Scaling Behavior of the Normalized Difference Vegetation Index Time Series in China Using a Detrended Fluctuation Analysis

Remote Sensing, 2015
Vegetation is an important part of terrestrial ecosystems. Although vegetation dynamics have explicit spatial and temporal dimensions, the study of the temporal process is in its infancy.
Xiaoyi Guo, Hongyan Zhang, Tao Yuan, Jianjun Zhao, Zhenshan Xue   +4 more
doaj   +1 more source

Generalized Mechanism Model for Ecosystem Hysteresis

Advanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao, Xin Wang, Jie Liu, Mingzi Wu, Jianqing Du, Kai Xue, Xiaoning Song, Xiaoyong Cui, Tong Zhao, Yanfen Wang   +9 more
wiley   +1 more source

Participatory design and use of a simplified landscape in a simulation model for mitigating land use conflict in Northern Thailand highlands [PDF]

, 2009
Landscape modelling integrating spatial information in Geographic Information Systems has been widely used to represent knowledge and support decision-making in the field of natural resource management.
Dumrongrojwatthana, P., Gajaseni, Nantana, Le Page, Christophe, Trébuil, Guy   +3 more
core  

Divergent Responses of Bacterial Communities to Permafrost Degradation and Their Associations With Carbon Across Vertical Profiles

Advanced Science, EarlyView.
Bacterial α‐diversity decreases, but stochasticity and community stability increase across the 15 m‐depth vertical profiles and along the degraded gradient within the active layer. The abundance and interaction of core taxa mainly control community stability in the active and permafrost layers, respectively.
Shengyun Chen, Yuzheng Gu, Ali Bahadur, Enyan Liu, Tonghua Wu, Xiaofan Zhu, Yuanqiang Zou, Hewei Liang, Peijie Wei, Linwei Wu, Qingbai Wu, Peizhi Yang, Hongyan Yu, Yunfeng Yang   +13 more
wiley   +1 more source

Ornithogenic vegetation: How significant has the seabird influence been on the Aleutian Island vegetation during the Holocene?

Ecology and Evolution, 2021
In the Aleutian Islands during the Holocene, terrestrial predators were actually absent; as a result, large seabird colonies thrived along the coasts or across entire islands. Bird guano enriches the soil with nitrogen, which can lead to the formation of
Olesya Igorevna Smyshlyaeva, Elena Erastovna Severova, Olga Aleksandrovna Krylovich, Evgeniya Andreevna Kuzmicheva, Arkady Borisovich Savinetsky, West Dixie, Virginia Hatfield   +6 more
doaj   +1 more source

Homoisoflavanone Delays Colorectal Cancer Progression via DNA Damage‐Induced Mitochondrial Apoptosis and Parthanatos‐Like Cell Death

Advanced Science, EarlyView.
Homoisoflavanone (HIF), a bioactive compound isolated from Polygonatum kingianum, selectively suppresses colorectal cancer progression by inducing DNA damage‐mediated mitochondrial apoptosis and parthanatos‐like cell death. HIF triggers mitochondrial dysfunction, including depolarized membrane potential, elevated ROS, and ATP depletion, while impairing
Hongjie Fan, Huzi Zhao, Pei Zhang, Pengfei Yu, Yunfei Ji, Gang Chen, Hongli Jin, Yanfang Liu, Jin Liu, Zhe‐Sheng Chen, Aiping Lyu, Xinmiao Liang, Yang Chen   +12 more
wiley   +1 more source

Extended patchy ecosystems may increase their total biomass through self-replication

, 2017
Patches of vegetation consist of dense clusters of shrubs, grass, or trees, often found to be circular characteristic size, defined by the properties of the vegetation and terrain. Therefore, vegetation patches can be interpreted as localized structures.
Bordeu, Ignacio, Clerc, Marcel G., Escaff, Daniel, Tlidi, Mustapha   +3 more
core   +1 more source

Spatial and temporal hot spots of Aedes albopictus abundance inside and outside a South European metropolitan area [PDF]

, 2016
Aedes albopictus is a tropical invasive species which in the last decades spread worldwide, also colonizing temperate regions of Europe and US, where it has become a public health concern due to its ability to transmit exotic arboviruses, as well as ...
Caputo, Beniamino, D'Alessandro, A, DELLA TORRE, Alessandra, Filipponi, F, Manica, Mattia, Neteler, M, Rosa, R, Screti, A, Solimini, ANGELO GIUSEPPE   +8 more
core   +4 more sources

Extracellular Vesicles of Streptococcus anginosus Mediate Gastritis via Epithelial Barrier Disruption and Macrophage‐driven Inflammation

Advanced Science, EarlyView.
Streptococcus anginosus extracellular vesicles (SA‐EVs) accumulate in gastric tissue, disrupt epithelial tight junctions, and induce gastritis characterized by neutrophil infiltration and elevated cytokines (TNF‐α, IL‐6, IL‐17A). Proteomics identifies TMPC and FBP62 as key SA‐EVs virulence factors; their genetic deletion attenuates inflammation ...
Ying Gong, Lina Duan, Jie Xiao, Yulu Deng, Hongxia Wang, Yajie Zhang, Xiumei Hu, Haifang Wang, Taixue An, Xin Li, Yurong Qiu, Lei Zheng, Haixia Li   +12 more
wiley   +1 more source