Results 141 to 150 of about 2,562,050 (291)

Alimentación estratégica de ovejas en invierno

, 2003
Un número importante de establecimientos ubicados en el sur de la patagonia presentan un alto riesgo invernal. El objetivo del presente trabajo fue determinar el efecto de la alimentación de ovejas confinadas en invierno por emergencias climáticas; con ...
Culun, Victor Pascual, Larrosa, Eusebio Jose, Barria, Daniel Osvaldo, Clifton, Guillermo Raimundo   +3 more
core   +1 more source

Extensión de la distribución conocida de Berosus chalcocephalus (Coleoptera: Hydrophilidae) en la Patagonia austral An extension to the known distribution of Berosus chalcocephalus (Coleoptera: Hydrophilidae) in southern Patagonia

Revista de la Sociedad Entomológica Argentina, 2004
Se amplía la distribución conocida de Berosus chalcocephalus Germain para incluir las provincias de Chubut y Santa Cruz. Esta es ahora la cita más austral para una especie del género en la Argentina.The known geographic distribution of Berosus ...
Martín G. Souza
doaj  

Autophagy Orchestrates Anti‐Tumor Immunity to Enhance Chemosensitivity via the FBXW2/C/EBPβ/TIMP‐2 Axis in Colorectal Cancer

Advanced Science, EarlyView.
Chemotherapy leverages tumor‐cell autophagy to reshape the colorectal cancer immune microenvironment. Autophagy degrades FBXW2 to promote C/EBPβ‐mediated TIMP‐2 transcription and MMP‐9 suppression, driving intra‐tumoral CD8+ T‐cell infiltration. Targeting MMP‐2/9 or restoring TIMP‐2 overcomes chemo‐resistance in autophagy‐deficient tumors. ABSTRACT The
Bing Cheng, Chaoying Wei, Zhitong Niu, Jinxin Chen, Guojie Long, Yingzhen Weng, Qiufeng Liu, Yue Jiang, Panpan Wang, Ronghua Zhang, Qiang Yu, Xiaojian Wu, Wenyu Wang   +12 more
wiley   +1 more source

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

Advanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan, Lixin Tian, Lianjie Peng, Jingyu Zhang, Lining Lin, Xiaoting Zhang, Yaxian Luo, Zhichao Liu, Xinhua Yao, Mouyuan Sun, Yong He, Mengfei Yu, Huiming Wang   +12 more
wiley   +1 more source

ZBTB18 Dysfunction Promotes Neuropathic Pain via CHD4‐based Epigenetic Disinhibition of CLIC1 Channels in Sensory Neurons

Advanced Science, EarlyView.
In this study, we identify a novel functional role of ZBTB18 in regulating trigeminal‐mediated neuropathic pain. Nerve injury reduces ZBTB18 in trigeminal ganglion neurons, impairing CHD4/NuRD recruitment and de‐repressing Clic1. Elevated CLIC1 enhances chloride channel activity and neuronal hyperexcitability, thereby driving pain.
Shoupeng Wang, Zitong Huang, Yu Tao, Yunmei Zhang, Yufang Sun, Dongsheng Jiang, Weiwei Lu, Fuhai Ji, Gang Chen, Min Xu, Yuan Zhang, Jin Tao   +11 more
wiley   +1 more source

Scavenger Assemblage Behavior at Puma Kills in the Santa Cruz Mountains, California. [PDF]

Ecol Evol
Allen ML, Allan ATL, King RM, Warner BH, Morgan JJ, Wilmers CC.   +5 more
europepmc   +1 more source

SerpinA3 is an Endogenous TGF‐β Receptor Antagonist that Attenuates Cardiac Fibroblast Activation and Fibrotic Remodeling

Advanced Science, EarlyView.
SerpinA3 acts as an endogenous TGF‐β receptor antagonist that binds to the extracellular domain of TGFR‐1, thereby preventing TGFR‐1–TGFR‐2 complex formation. This receptor‐level blockade suppresses TGF‐β/Smad2/3 signaling, attenuates cardiac fibroblast activation, and extracellular matrix deposition, and ultimately alleviates pressure overload–induced
Hui Wang, Jieyu Cui, Chunlu Huang, Wanyi Guo, Tong Liu, Yi Zhu, Shuai Shao, Kangyin Chen, Jinlong He, Qiankun Bao   +9 more
wiley   +1 more source

Decoding Viral Transmission Dynamics in Structured Populations Using a Microfluidic Herd‐Immunity‐on‐a‐Chip Platform

Advanced Science, EarlyView.
A microfluidic Herd‐Immunity‐on‐a‐Chip experimentally recreates structured contact networks to quantify viral transmission dynamics. By controlling susceptible, infected, and non‐susceptible populations, the platform reveals how contact topology governs the reproduction number, outbreak propagation, herd‐immunity–like behavior, and intervention ...
Jiande Zhang, Narina Jung, Min‐Hyeok Kim, Wanyoung Lim, Zhenzhong Chen, Byung Mook Weon, Sungsu Park   +6 more
wiley   +1 more source

Exploratory assessment of the chemical and antioxidant potential of <i>Apis mellifera</i> honeys from Santa Cruz, Bolivia. [PDF]

Food Chem X
Limpias-Hurtado JA, Montellano Duran N, Giménez-Turba A, Nina N.   +3 more
europepmc   +1 more source

Dual pKa Lipid Nanoparticles for Lung‐tropic mRNA Delivery and pH‐Programmed Endosomal Escape

Advanced Science, EarlyView.
Lipid nanoparticles’ bottleneck lies in low endosomal escape efficiency and liver‐dominant delivery after intravenous administration. To overcome these limitations, we present a stepwise pH‐programmed lipid nanoparticle system enabled by our newly synthesized ionizable lipid.
Seong Gi Lim, Minju Lee, Yiming Wang, Eunjin Choi, Ji Sun Park, Kyungmin Park, Hayoung Jeon, Donghyun Kim, Donghyun Lee, Yeeun Lee, Kee‐Pyo Kim, Eunha Kim, Heebeom Koo   +12 more
wiley   +1 more source