Results 71 to 80 of about 592,371 (315)

Effects of prolonged exposure to hypobaric hypoxia on oxidative stress, inflammation and gluco-insular regulation: the not-so-sweet price for good regulation. [PDF]

, 2014
Sustained hypoxemia is associated with insulin resistance, whose magnitude correlates with the degree of oxidative stress and inflammation. The role of 4-HNE and IL-6 as key players in modifying the association between sustained hypoxia and insulin ...
Monty G. Mythen (551722), Carl A Leckstrom, Mythen, Monty G., Mario Siervo, Hugh E Montgomery, Monty G Mythen, Fernandez, Bernadette O, Feelisch, Martin, Bernadette O. Fernandez (358499), Kay Mitchell, Martin Feelisch, Siervo, Mario, Riley, Heather L., Fernandez, Bernadette O., Montgomery, Hugh E., Martin Feelisch (358503), Michael P W Grocott, Heather L. Riley (551717), HASH(0x55a67fe3ce10), Michael P. W. Grocott (551723), Denny Z H Levett, Caudwell Xtreme Everest Research Group, Mario Siervo (359964), Denny Z. H. Levett (551721), Carl A. Leckstrom (551718), Levett, Denny Z.H., Bernadette O Fernandez, Daniel S Martin, Hugh E. Montgomery (364638), Grocott, Michael P. W., Levett, Denny Z. H., Leckstrom, Carl A., Martin, Daniel S., Kay Mitchell (551720), Daniel S. Martin (551719), Mitchell, Kay, Heather L Riley   +36 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

The role of orexin A in the pathogenesis of ischaemic stroke at high altitude

Experimental Physiology
Orexin offers protection against cerebral ischaemia–reperfusion injury, with high altitude playing a key role in modulating its expression. This study aimed to investigate the effect of high altitude on orexin expression and its pathophysiological ...
Minxia Zhu, Xu Guo, Jing Guo, Zhaojun Zhang, Kexin Zhang, Yaqi Lei, Yuhe Wang, Haoshuang Zhan   +7 more
doaj   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

The key role of nitric oxide in hypoxia: hypoxic vasodilation and energy supply-demand matching [PDF]

Significance: a mismatch between energy supply and demand induces tissue hypoxia with the potential to cause cell death and organ failure. Whenever arterial oxygen concentration is reduced, increases in blood flow - 'hypoxic vasodilation' - occur in an ...
Feelisch, Martin, Umbrello, Michele, Dyson, Alex, Singer, Mervyn   +3 more
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Orexin A protects against cerebral ischemia-reperfusion injury by enhancing reperfusion in ischemic cortex via HIF-1α-ET-1/eNOS pathway

Brain Research Bulletin
The purpose of this study was to investigate the protective effect and underlying mechanism of orexin A on cerebral ischemia-reperfusion injury, specifically through vasodilation mediated by the hypoxia inducible factor-1α (HIF-1α)-Endothelin-1(ET-1 ...
Minxia Zhu, Xiaofeng Li, Jing Guo, Zhaojun Zhang, Xu Guo, Zhuoqi Li, Junwei Lin, Pengfei Li, Zixuan Jiang, Yifan Zhu   +9 more
doaj   +1 more source

Polarized Distribution of Active Myosin II Regulates Directional Migration of Cultured Olfactory Ensheathing Cells

Scientific Reports, 2017
Migration of olfactory ensheathing cells (OECs) is critical for development of olfactory system and essential for neural regeneration after OEC transplantation into nerve injury site.
Cheng-gen Zheng, Fan Zhang, Xiao-mei Bao, Shi-yang Wu, Peng Wang, Jia-nan Zhou, Yuan Gao, Hong-lin Teng, Ying Wang, Zhi-hui Huang   +9 more
doaj   +1 more source

Activation of hypoxia inducible factor 1 is a general phenomenon in infections with human pathogens

, 2010
Background: Hypoxia inducible factor (HIF)-1 is the key transcriptional factor involved in the adaptation process of cells and organisms to hypoxia. Recent findings suggest that HIF-1 plays also a crucial role in inflammatory and infectious diseases ...
Peschel, Andreas, Edelmann, Markus, Schäfer, Andrea, Werth Nadine, Andreas Peschel, Volkhard A. J. Kempf, Edelmann Markus, Yazdi Amir S., Becker, Karsten, Rosenberger, Christian, Nadine Werth, Amir S Yazdi, Volkhard A J Kempf, Bernhardt Wanja, Kempf, Volkhard A. J., Amr, Amro, Rosenberger Christian, Amr Amro, Werth, Nadine, Andrea Schäfer, Peschel Andreas, von Eiff Christof, Christiane Beerlage, Kempf Volkhard A. J., Eiff, Christof von, Amro Amr, Becker Karsten, Beerlage, Christiane, Christof von Eiff, Wanja Bernhardt, Yazdi, Amir Sadegh, Bernhardt, Wanja, Christian Rosenberger, Karsten Becker, Schäfer Andrea, Beerlage Christiane, Amir S. Yazdi, Markus Edelmann   +37 more
core   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source