Journal: Biomedical Engineering Letters

Article Title: Wearable EEG and beyond

doi: 10.1007/s13534-018-00093-6

Figure Lengend Snippet: Comparison of two different electrode configurations shows how the presence/positioning of a reference electrode can distort the signals collected from a test electrode. a Test set up using a two electrode electro-physiological recorder. Electrodes in the blue test case (1 and 2) are placed on the wrist. Electrodes in the red test case (A and B) are on the wrist and chest. No third reference electrode is present when using the camNtech actiwave. b Wrist only recordings are very low in amplitude with no clear QRS complex. c With the chest electrode present a QRS complex apears at the wrist

Article Snippet: ECG recordings are then performed at different points in time, here using a camNtech actiwave two electrode ECG recorder [ 58 ].

Techniques:

Journal: Biology Open

Article Title: Central ventilatory and cardiovascular actions of trout gastrin-releasing peptide (GRP) in the unanesthetized trout

doi: 10.1242/bio.20135553

Figure Lengend Snippet: Recording traces of 30 sec duration in the same unanesthetized trout illustrating the changes observed in ventilatory movements (ventilation), pulsatile dorsal aortic blood pressure ( P DA ) and electrocardiographic (ECG) signals between the pre-injection period (0–5 min) ( A ) and the post-injection period (20–25 min) ( B ) after intracerebroventricular (ICV) injection of 50 pmol GRP. Note that, compared with the pre-injection period, the ICV injection of GRP produces an increase in the ventilation rate and amplitude, and an elevation of blood pressure and heart rate.

Article Snippet: Briefly, two ECG AgCl electrodes (Comepa, 93541 Bagnolet, France) were subcutaneously implanted ventrally and longitudinally at the level of the pectoral fins.

Techniques: Injection

Journal: bioRxiv

Article Title: Dual effects of nicotinamide on aging-related arrhythmia: protective at low dose, proarrhythmic at high doses

doi: 10.1101/2025.09.22.677785

Figure Lengend Snippet: (A) Experimental scheme of Langendorff ex vivo mouse hearts perfused with control or 10 mM NAM-supplemented buffer. Electrocardiogram (ECG) was recorded with the positive electrode (‘+’) positioned beneath the apex of the left ventricle, and the negative (‘-’) and ground (‘0’) electrodes on the cannula. Programmed electrical stimulation was applied via a pacing electrode (‘P’) placed on the surface of the right atrium. (B) Representative ECG traces from AF-negative (top) and AF-positive (bottom) mouse hearts. (C-E) AF incidence, episode count and burden in hearts from the control (n=6 for both sexes) and 10 mM NAM (n=5 for both sexes). Data are expressed as mean ± standard error of the mean. Chi-square test was used for AF incidence and Scheirer-Ray-Hare test followed by Dunn’s post-hoc test was used for AF episode count and burden.

Article Snippet: Cardiac electrocardiograms (ECG) were recorded using three electrodes (MLA1213 and MLA1212, ADInstruments).

Techniques: Ex Vivo, Control

Journal: bioRxiv

Article Title: Dual effects of nicotinamide on aging-related arrhythmia: protective at low dose, proarrhythmic at high doses

doi: 10.1101/2025.09.22.677785

Figure Lengend Snippet: (A) Experimental scheme of Langendorff ex vivo mouse hearts perfused with 0 mM NAM (control) or 100 mM NAM-supplemented buffer. (B) Representative electrocardiogram (ECG) shows that acute perfusion with 100 mM NAM rapidly induced VF, contractile dysfunction, and eventually led to cardiac arrest (n=4 males, 2 females). (C) Representiative blots and (D) quantification of acetylated SERCA2a levels of left venticular tissue from control and 100 mM NAM-perfused ex vivo mouse hearts (n=3). Data are expressed as mean ± standard error of the mean. Two tailed unpaired Student t-test was used.

Article Snippet: Cardiac electrocardiograms (ECG) were recorded using three electrodes (MLA1213 and MLA1212, ADInstruments).

Techniques: Ex Vivo, Control, Two Tailed Test