Journal: Journal of cardiology

Article Title: Remodeling of the intercalated disc related to aging in the mouse heart.

doi: 10.1016/j.jjcc.2015.10.001

Figure Lengend Snippet: Fig. 2. Example of averaged electrocardiogram tracing from young mouse (upper panel) and from the aged mouse (lower panel). The QRS beginning and end are marked with vertical lines (QRS Start and QRS End, respectively). QRS widening is present in the old mouse and PR interval is also prolonged.

Article Snippet: The signal was acquired using the Animal BioAmp (ADInstruments, Bella Vista, New South Wales, Australia) and PowerLab (ADInstruments) analog-to-digital interface connected to the computer and recorded with LabChart 7 Pro software (ADInstruments) for the period of sedation that lasted for at least 20 s. Analysis was performed using the ECG analysis LabChart module (ADInstruments).

Techniques:

Journal: Physiological Reports

Article Title: Norepinephrine mediates heart block during severe hypoglycemia in male rats

doi: 10.14814/phy2.70010

Figure Lengend Snippet: Experiment 1: Brain norepinephrine infusion ECG. (a) Mortality during severe hypoglycemia was 16% in aCSF (white bar) and 35% in Nore (black bar) but this was not statistically different. (b) Third‐degree heart block was increased in Nore compared to aCSF. (c) ST elevation was increased in Nore whereas aCSF did not experience ST elevation. (d) Heart rate decreased in both groups during severe hypoglycemia (SH) compared to their respective basals ( p < 0.001). During severe hypoglycemia, Nore had a slight but significantly higher heart rate compared to aCSF ( p < 0.02). (e) QTc prolongation occurred in both groups during severe hypoglycemia compared to basal with no differences between the two groups ( p < 0.001). (f) Representative ECG from aCSF (left) and Nore (right). Basal: Both groups show normal sinus rhythm. T wave increase: Both groups had some rats that experienced this. ST elevation: This did not occur in aCSF. Instead normal sinus rhythm at similar timepoint during severe hypoglycemia is shown. Nore shows ST elevation. Third‐degree heart block: Rats from both groups experienced third‐degree heart block. Data are represented as box and whisker plots with median and interquaritle range and min to max values. N = 20–26/group.

Article Snippet: An electrocardiogram (ECG) (PowerLab 26 T; LabChart; ADInstruments, Colorado Springs, CO) was recorded throughout the clamp.

Techniques: Blocking Assay, Whisker Assay

Journal: Physiological Reports

Article Title: Norepinephrine mediates heart block during severe hypoglycemia in male rats

doi: 10.14814/phy2.70010

Figure Lengend Snippet: Experiment 2: Blockade of norepinephrine with reserpine ECG. (a) Mortality was completely prevented with Reserpine compared to 13.8% in Control (white bar) but this missed significance. (b) Second‐degree heart block was nearly prevented with Reserpine compared to Control. (c) Third‐degree heart block was prevented with Reserpine compared to 24% in Control. (d) T wave increase occurred in Control but was prevented with Reserpine. (e) Heart rate decreased during severe hypoglycemia compared to basal ( p < 0.001) but to a similar extent in both groups. (f) QTc prolongation occurred in both groups compared to basal ( p < 0.001) but to a lesser extent in Reserpine ( p < 0.02). (g) Representative ECG from Control (left) and Reserpine (right) groups. Basal: Rats from both groups were in normal sinus rhythm. Shown under the control group is T wave increase, ST elevation, and third degree heart block. The rats in the Reserpine group did not have T wave increase, ST elevation, or third Degree heart block. Instead, an ECG at a similar timepoint during severe hypoglycemia (i.e., 1, 2, and 3 h) are shown with the rats in normal sinus rhythm. Data are represented as box and whisker plots with median and interquaritle range and min to max values. N = 20–29/group.

Article Snippet: An electrocardiogram (ECG) (PowerLab 26 T; LabChart; ADInstruments, Colorado Springs, CO) was recorded throughout the clamp.

Techniques: Control, Blocking Assay, Whisker Assay

Journal: eNeuro

Article Title: Enlarged Interior Built Environment Scale Modulates High-Frequency EEG Oscillations

doi: 10.1523/ENEURO.0104-22.2022

Figure Lengend Snippet: Experimental design and setup. A , Isometric view of conditions. Participants were presented with eyes open resting state, followed by four randomized scale conditions. Each scene lasted 2 min, between which the resting state was displayed while the participant completed a self-report assessment of emotion. B , Floor plan indicating the position of items in the experiment. IEQ variables were measured continuously, and all recording equipment was positioned outside of the participants field of view. C , Diagram of equipment fitted to participant including stereoscopic tracking glasses, EEG system, respiratory belt, SCR finger cradles, and ECG electrodes. Diagrams are representative, not drawn to exact scale.

Article Snippet: A 10 min, three-lead ECG recording (PowerLab, LabChart Pro 8.1.16) was performed.

Techniques: