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  1. Article ; Online: Influence of Age on Hyperoxia-Induced Cardiac Pathophysiology in Type 1 Diabetes Mellitus (T1DM) Mouse Model.

    Saleem, Faizan / Mansour, Hussein / Vichare, Riddhi / Ayalasomayajula, Yashwant / Yassine, Jenna / Hesaraghatta, Anagha / Panguluri, Siva Kumar

    Cells

    2023  Volume 12, Issue 11

    Abstract: Mechanical ventilation often results in hyperoxia, a condition characterized by excess ... ...

    Abstract Mechanical ventilation often results in hyperoxia, a condition characterized by excess SpO
    MeSH term(s) Female ; Mice ; Male ; Animals ; Diabetes Mellitus, Type 1/complications ; Disease Models, Animal ; Hyperoxia/complications ; Ventricular Remodeling ; Cardiomegaly
    Language English
    Publishing date 2023-05-24
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells12111457
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Influence of age and sex on physical, cardiac electrical and functional alterations in progressive hyperoxia treatment: A time course study in a murine model.

    Ayalasomayajula, Yashwant / Hesaraghatta, Anagha / Dantuluri, Neha / Yassine, Jenna / Saleem, Faizan / Mansour, Hussein / Chayawatto, Chayapatou / Rangarajan, Nishank / Rangarajan, Sashank / Krishnan, Smrithi / Panguluri, Siva Kumar

    Experimental gerontology

    2024  Volume 191, Page(s) 112435

    Abstract: Oxygen supplementation is a widely used treatment for ICU patients. However, it can lead to hyperoxia, which in turn can result in oxidative stress, cardiac remodeling, and even mortality. This paper expands upon previous research conducted by our lab to ...

    Abstract Oxygen supplementation is a widely used treatment for ICU patients. However, it can lead to hyperoxia, which in turn can result in oxidative stress, cardiac remodeling, and even mortality. This paper expands upon previous research conducted by our lab to establish time-dependent cardiac changes under hyperoxia. In this study, both young and aged mice (male and female) underwent 72 h of hyperoxia exposure and were monitored at 24-hour intervals for cardiac electrophysiological and functional parameters using ECG and electrocardiogram data. Our analysis showed that young male mice experienced significant weight loss as well as significant lung edema by 48 h. Although young male mice were highly susceptible to physical changes, they were resistant to early cardiac functional and electrophysiological changes compared to the other groups. Both young and aged female and aged males developed functional impairments by 24 h of hyperoxia exposure. Furthermore, sex and age differences were noted in the onset of electrophysiological changes. While some groups could resist early cardiac remodeling, our data suggests that 72 h of hyperoxia exposure is sufficient to induce significant cardiac remodeling across all age and sex groups. Our data establishes that time-dependent cardiac changes due to oxygen supplementation can have devastating consequences even with short exposure periods. These findings can aid in developing clinical practices for individuals admitted to the ICU by elucidating the impact of aging, sex, and length of stay under mechanical ventilation to limit hyperoxia-induced cardiac remodeling.
    Language English
    Publishing date 2024-04-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 390992-x
    ISSN 1873-6815 ; 0531-5565
    ISSN (online) 1873-6815
    ISSN 0531-5565
    DOI 10.1016/j.exger.2024.112435
    Database MEDical Literature Analysis and Retrieval System OnLINE

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