Biomaterial Database

Vagal-induced tachycardia: release of vasoactive intestinal peptide and peptide HI. 1994

F L Anderson, and A C Kralios, and N Cluff, and G R Hanson

Department of Internal Medicine (Cardiology), University of Utah School of Medicine, Salt Lake City.

The relationship between vagal-induced tachycardia (VT) and release of vasoactive intestinal peptide (VIP) and peptide HI (PHI) into cardiac lymph and coronary sinus blood was studied in 23 alpha-chloralose-anesthetized open-chest dogs that were autonomically decentralized and pretreated with atropine and propranolol. After simultaneous right and left cervical vagal stimulation at 5 V, 20 Hz for 3 min mean +/- SE, increase in heart rate was 38 +/- 6 beats/min, and increase in lymph VIP output from control was 0.308 +/- 0.093 pg/min (P = 0.004). The decrease in VIP arterial minus coronary sinus concentration was not significant. The increase in heart rate did not significantly correlate with increase in lymph VIP output (R2 = 0.141) or decrease in VIP arterial minus coronary sinus concentration (R2 = 0.059). The increases in heart rate and lymph VIP output were blocked by hexamethonium. Increase in lymph PHI output from control during VT (5 dogs) was 0.797 +/- 0.658 pg/min. Arterial-coronary sinus PHI concentration difference did not change in these dogs. These data indicate that VT is associated but not significantly correlated with VIP and PHI release into cardiac lymph. Cholinoceptive nicotinic receptors may mediate VIP release and VT in anesthetized dogs.

UI	MeSH Term	Description	Entries
D008208	Lymphatic System	A system of organs and tissues that process and transport immune cells and LYMPH.	Lymphatic Systems
D010451	Peptide PHI	A 27-amino acid peptide with histidine at the N-terminal and isoleucine amide at the C-terminal. The exact amino acid composition of the peptide is species dependent. The peptide is secreted in the intestine, but is found in the nervous system, many organs, and in the majority of peripheral tissues. It has a wide range of biological actions, affecting the cardiovascular, gastrointestinal, respiratory, and central nervous systems.	Neuropeptide PHI 27,PHI Peptide,Peptide Histidine-Isoleucine,Peptide PHM,Human PHI,PHM Neuropeptide,PHM-27,Peptide HI,Peptide Histidine Methionine,Peptide PHI-27,Peptide-Histidine-Isoleucinamide,Porcine Intestinal Heptacosapeptide,Pro-Vasoactive Intestinal Peptide,Heptacosapeptide, Porcine Intestinal,Histidine Methionine, Peptide,Histidine-Isoleucine, Peptide,Intestinal Heptacosapeptide, Porcine,Intestinal Peptide, Pro-Vasoactive,Methionine, Peptide Histidine,Neuropeptide, PHM,PHI, Human,PHM, Peptide,Peptide Histidine Isoleucinamide,Peptide Histidine Isoleucine,Peptide PHI 27,Peptide, PHI,Peptide, Pro-Vasoactive Intestinal,Pro Vasoactive Intestinal Peptide
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D004558	Electric Stimulation	Use of electric potential or currents to elicit biological responses.	Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical
D004562	Electrocardiography	Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.	12-Lead ECG,12-Lead EKG,12-Lead Electrocardiography,Cardiography,ECG,EKG,Electrocardiogram,Electrocardiograph,12 Lead ECG,12 Lead EKG,12 Lead Electrocardiography,12-Lead ECGs,12-Lead EKGs,12-Lead Electrocardiographies,Cardiographies,ECG, 12-Lead,EKG, 12-Lead,Electrocardiograms,Electrocardiographies, 12-Lead,Electrocardiographs,Electrocardiography, 12-Lead
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013610	Tachycardia	Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.	Tachyarrhythmia,Tachyarrhythmias,Tachycardias
D014630	Vagus Nerve	The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).	Cranial Nerve X,Pneumogastric Nerve,Tenth Cranial Nerve,Nerve X,Nervus Vagus,Cranial Nerve, Tenth,Cranial Nerves, Tenth,Nerve X, Cranial,Nerve Xs,Nerve, Pneumogastric,Nerve, Tenth Cranial,Nerve, Vagus,Nerves, Pneumogastric,Nerves, Tenth Cranial,Nerves, Vagus,Pneumogastric Nerves,Tenth Cranial Nerves,Vagus Nerves,Vagus, Nervus