Title |
No evidence in support of a prodromal respiratory control signature in the TgF344-AD rat model of Alzheimer’s disease
|
---|---|
Published in |
Respiratory Physiology & Neurobiology, July 2019
|
DOI | 10.1016/j.resp.2018.06.014 |
Pubmed ID | |
Authors |
Eric F. Lucking, Kevin H. Murphy, David P. Burns, Anirudh V. Jaisimha, Kevin J. Barry-Murphy, Pardeep Dhaliwal, Barry Boland, Mark G. Rae, Ken D. O’Halloran |
Abstract |
Alzheimer's disease (AD) is a progressive neurodegenerative condition disturbing major brain networks, including those pivotal to the motor control of breathing. The aim of this study was to examine respiratory control in the TgF344-AD transgenic rat model of AD. At 8-11 months of age, basal minute ventilation and ventilatory responsiveness to chemostimulation were equivalent in conscious wild-type (WT) and TgF344-AD rats. Under urethane anesthesia, basal diaphragm and genioglossus EMG activities were similar in WT and TgF344-AD rats. The duration of phenylbiguanide-induced apnoea was significantly shorter in TgF344-AD rats compared with WT. Following bilateral cervical vagotomy, diaphragm and genioglossus EMG responsiveness to chemostimulation were intact in TgF344-AD rats. Amyloid precursor protein C-terminal fragments were elevated in the TgF344-AD brainstem, in the absence of amyloid-β accumulation or alterations in tau phosphorylation. Brainstem pro-inflammatory cytokine concentrations were not increased in TgF344-AD rats. We conclude that neural control of breathing is preserved in TgF344-AD rats at this stage of the disease. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 25 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 4 | 16% |
Professor | 3 | 12% |
Researcher | 3 | 12% |
Student > Ph. D. Student | 3 | 12% |
Lecturer | 2 | 8% |
Other | 5 | 20% |
Unknown | 5 | 20% |
Readers by discipline | Count | As % |
---|---|---|
Neuroscience | 8 | 32% |
Medicine and Dentistry | 4 | 16% |
Nursing and Health Professions | 2 | 8% |
Immunology and Microbiology | 1 | 4% |
Social Sciences | 1 | 4% |
Other | 3 | 12% |
Unknown | 6 | 24% |