Results 41 to 50 of about 13,484 (179)

Dorso‐Ventral and Night‐Day Regulation of Extracellular K+ Dynamics in Mouse Hippocampal Astrocytes

Glia, Volume 74, Issue 9, September 2026.
Hippocampal astrocytic K+ buffering varies by region and time. Ventral astrocytes show faster K+ accumulation due to reduced Kir4.1 function. Such regional divergence is modulated by circadian shifts in Kir4.1 and gap junction coupling. ABSTRACT Astrocytes regulate extracellular potassium (K+) through multiple mechanisms operating across distinct ...
Nariman Kiani, Kabeer Abubakar, Tin Luka Petanjek, Monique Esclapez, Anton Ivanov, Christophe Bernard   +5 more
wiley   +1 more source

Ouabain Modulates Zymosan-Induced Peritonitis in Mice

Mediators of Inflammation, 2015
Ouabain, a potent inhibitor of the Na+, K+-ATPase, was identified as an endogenous substance. Recently, ouabain was shown to affect various immunological processes.
Jacqueline Alves Leite, Anne Kaliery De Abreu Alves, José Guilherme Marques Galvão, Mariana Pires Teixeira, Luiz Henrique Agra Cavalcante-Silva, Cristoforo Scavone, Alexandre Morrot, Vivian Mary Rumjanek, Sandra Rodrigues-Mascarenhas   +8 more
doaj   +1 more source

Fisetin Attenuates Amyloid‐Beta‐Induced Neurotoxicity in Human Neuroblastoma SH‐SY5Y Cells: Integrating In Silico Target Prediction and In Vitro Validation

Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 9, September 2026.
The in‐silico data showed that fisetin binds stably with the autophagy receptors and synaptic density regulators. Further, in‐vitro data confirmed the restoration of Aβ1‐42 disrupted autophagy by fisetin. Fisetin restored the oxidative stress and ion channels, along with a reduction of AChE activity.
Charu Jaiswal, Ishika Singh, Abhishek Kumar Singh   +2 more
wiley   +1 more source

A low concentration of ouabain (0.18 µg/kg) enhances hypertension in spontaneously hypertensive rats by inhibiting the Na+ pump and activating the renin-angiotensin system

Brazilian Journal of Medical and Biological Research, 2010
We investigated the effects of low ouabain concentrations on systolic (SAP) and diastolic (DAP) arterial pressures and on pressor reactivity in 3-month-old male spontaneously hypertensive rats (SHR). Arterial blood pressure (BP) and pressor reactivity to
F.D.M. Siman, I. Stefanon, D.V. Vassallo, A.S. Padilha   +3 more
doaj  

Identification of Novel Therapeutic Agent Candidates Through High Throughput Screening With Chemical Library Based on Molecular Subclassification in Canine Histiocytic Sarcoma Cell Lines

Veterinary and Comparative Oncology, Volume 24, Issue 3, Page 554-567, September 2026.
ABSTRACT Effective chemotherapy for canine histiocytic sarcoma (CHS) has yet to be established. In our previous study, CHS cell lines were subclassified into two groups based on their gene expression profiles: Group A and Group B. This study aimed to identify novel therapeutic agents that are effective against each CHS subgroup, and we performed high ...
Hiroki Sakuma, Hirotaka Tomiyasu, Mari Takamiya, Yuko Goto‐Koshino, Atsushi Tsukamoto, Makoto Bonkobara, Masaru Okuda   +6 more
wiley   +1 more source

Closing the Translational Gap: Closed‐Loop AI Discovery Frameworks for Experimental Validation and Clinical Implementation in Cancer Therapeutics

Cancer Medicine, Volume 15, Issue 8, August 2026.
Artificial intelligence accelerates cancer therapeutic development through an iterative, closed‐loop pipeline: from AI‐driven target and drug discovery, through automated synthesis and screening, to experimental validation in in vivo tumor models, culminating in clinical translation guided by patient data.
Tuğba Ören Varol, Mehmet Varol
wiley   +1 more source

Modulation of TNF‐α mRNA stability by human antigen R and miR181s in sepsis‐induced immunoparalysis

EMBO Molecular Medicine, 2014
Immunoparalysis is an important pathological mechanism in sepsis. However, an effective small molecule therapy is lacking. Here, we show that ouabain, a Na+,K+‐ATPase ligand, can reverse immunoparalysis in vitro, in vivo, and in clinical samples. Notably,
Cao Dan, Bian Jinjun, Hua Zi‐Chun, Ma Lin, Chen Wei, Zhang Xu, Zhou Ri, Cheng Shun, Sun Wen‐Zhu, Jiao Qing‐Cai, Yin Wu   +10 more
doaj   +1 more source

Effects of ouabain on vascular reactivity

Brazilian Journal of Medical and Biological Research, 1997
Ouabain is an endogenous substance occurring in the plasma in the nanomolar range, that has been proposed to increase vascular resistance and induce hypertension. This substance acts on the a-subunit of Na+,K+-ATPase inhibiting the Na+-pump activity.
Vassallo D.V., E. Songu-Mize, L.V. Rossoni, S.M.C. Amaral   +3 more
doaj   +1 more source

Calcium Export from Neurons and Multi-Kinase Signaling Cascades Contribute to Ouabain Neuroprotection in Hyperhomocysteinemia

Biomolecules, 2020
Pathological homocysteine (HCY) accumulation in the human plasma, known as hyperhomocysteinemia, exacerbates neurodegenerative diseases because, in the brain, this amino acid acts as a persistent N-methyl-d-aspartate receptor agonist.
Maria A. Ivanova, Arina D. Kokorina, Polina D. Timofeeva, Tatiana V. Karelina, Polina A. Abushik, Julia D. Stepanenko, Dmitry A. Sibarov, Sergei M. Antonov   +7 more
doaj   +1 more source

Evaluation of Uliginosin B as a Modulator of the Ras Pathway: In Vivo Evidence From Caenorhabditis elegans and In Silico Insights

Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.
This study performs in vivo and in silico assays with uliginosin B, targeting its activity in the Ras signaling pathway, demonstrating a possible allosteric interaction with the HRAS (human) and LET‐60 (nematode) proteins, and a decrease in the overexpression of the let‐60 gene in the nematode C. elegans.
Maria Eduarda O. De Souza, Flávia Suelen De O. Pereira, Daniela Teixeira Rodrigues, Helder Dias Costa, Tarsila Dantas Da Rosa, Camila Machado Pires da Silva, Gilsane von Poser, Stela M. K. Rates, Favero R. Paula, Daiana Silva Ávila   +9 more
wiley   +1 more source