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Hypoxia

  • RESEARCH ARTICLE
    Amyloid-beta peptide and phosphorylated tau in the frontopolar cerebral cortex and in the cerebellum of toothed whales: aging versus hypoxia
    Simona Sacchini, Josué Díaz-Delgado, Antonio Espinosa de los Monteros, Yania Paz, Yara Bernaldo de Quirós, Eva Sierra, Manuel Arbelo, Pedro Herráez, Antonio Fernández
    Biology Open 2020 9: bio054734 doi: 10.1242/bio.054734 Published 5 November 2020

    Summary: Immunohistochemical analysis showed positive immunolabeling for amyloid-beta peptide and phosphorylated tau in the cerebral and cerebellar cortex of toothed whales. These findings could be linked to hypoxic phenomena.

  • RESEARCH ARTICLE
    Compartment and cell-type specific hypoxia responses in the developing Drosophila brain
    Martin Baccino-Calace, Daniel Prieto, Rafael Cantera, Boris Egger
    Biology Open 2020 9: bio053629 doi: 10.1242/bio.053629 Published 18 August 2020

    Summary: A fluorescent biosensor reveals cell type specific hypoxia levels in the Drosophila brain in unprecedented detail. It paves the way for further functional studies addressing the role of oxygen in neural stem cell maintenance and differentiation.

  • METHODS & TECHNIQUES
    A methodological evaluation of the determination of critical oxygen threshold in an estuarine teleost
    Benjamin Negrete, Jr., Andrew J. Esbaugh
    Biology Open 2019 8: bio045310 doi: 10.1242/bio.045310 Published 7 November 2019

    Summary: The two leading methods of measuring the critical oxygen threshold in fishes are similar in their estimations, regardless of changes to water chemistry.

  • RESEARCH ARTICLE
    Identification of possible hypoxia sensor for behavioral responses in a marine annelid, Capitella teleta
    Tetsuya Ogino, Haruhiko Toyohara
    Biology Open 2019 8: bio037630 doi: 10.1242/bio.037630 Published 14 March 2019

    Summary: The hypoxia-avoidance behavior of a marine annelid was suppressed by a TRPA1-specific inhibitor. Our dataset suggests that the possible hypoxia sensor for hypoxia-inducing behaviors of this marine annelid is TRPAbasal.

  • RESEARCH ARTICLE
    Hypoxia evokes increased PDI and PDIA6 expression in the infarcted myocardium of ex-germ-free and conventionally raised mice
    Klytaimnistra Kiouptsi, Stefanie Finger, Venkata S. Garlapati, Maike Knorr, Moritz Brandt, Ulrich Walter, Philip Wenzel, Christoph Reinhardt
    Biology Open 2019 8: bio038851 doi: 10.1242/bio.038851 Published 2 January 2019

    Summary: We identified PDIA6 as a hypoxia-induced element of the unfolded protein response in cardiomyocytes and infarcted mouse hearts. PDIA6 expression and ejection fractions were reduced in infarcted ex-germ-free mouse hearts.

  • METHODS & TECHNIQUES
    Re-evaluating the functional landscape of the cardiovascular system during development
    Norio Takada, Madoka Omae, Fumihiko Sagawa, Neil C. Chi, Satsuki Endo, Satoshi Kozawa, Thomas N. Sato
    Biology Open 2017 6: 1756-1770; doi: 10.1242/bio.030254

    Summary: The body-wide landscape of the cardiovascular functions during development is reported. Such landscape may provide clues as to why the cardiovascular system is the first organ to develop.

  • RESEARCH ARTICLE
    The expression of Ldh-c in the skeletal muscle of plateau pika (Ochotona curzoniae) enhances adaptation to a hypoxic environment
    Zhi F. An, Deng B. Wei, Lian Wei, Yang Wang, Lin N. Wei
    Biology Open 2017 6: 1336-1341; doi: 10.1242/bio.024943

    Summary: The expression of Ldh-c in the skeletal muscle of plateau pika (Ochotona curzoniae) increases anaerobic glycolysis, resulting in enhanced sprint-running capacity and adaptation to a hypoxic environment.

  • METHODS & TECHNIQUES
    Investigation of protein synthesis in Drosophila larvae using puromycin labelling
    Lisa P. Deliu, Abhishek Ghosh, Savraj S. Grewal
    Biology Open 2017 6: 1229-1234; doi: 10.1242/bio.026294

    Summary: This paper describes a simple approach, using puromycin-labelling of nascent peptides, to assay protein synthesis in response to growth and stress signals in Drosophila larvae.

  • RESEARCH ARTICLE
    The effects of moderate intensity training in a hypoxic environment on transcriptional responses in Thoroughbred horses
    Allan J. Davie, Li Wen, Andrew R. E. Cust, Rosalind Beavers, Tom Fyfe, Shi Zhou
    Biology Open 2017 6: 1035-1040; doi: 10.1242/bio.020388

    Summary: This was one of the first studies that examined transcriptional and physiological responses of Thoroughbred racehorses to six weeks moderate intensity treadmill training in a hypoxia chamber with 15% oxygen.

  • RESEARCH ARTICLE
    Establishment of a retinal hypoxia organ culture model
    S. Schnichels, M. Blak, J. Hurst, T. Dorfi, K. U. Bartz-Schmidt, F. Ziemssen, M. S. Spitzer, M. Schultheiss
    Biology Open 2017 6: 1056-1064; doi: 10.1242/bio.025429

    Summary: An easy-to-use ex vivo retinal hypoxia model is introduced that reliably induced retinal damage on a morphological (retinal thickness), and molecular (protein expression and apoptotic markers) level.

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