Biomaterial Database

Digital pulse plethysmography--a tool for investigating vasoactive substances. 1985

E von Möllendorff, and G Neugebauer

Plethysmographic investigations have been in use for at least a hundred years for the measurement of pharmacological actions in humans. Finger plethysmography was used particularly in the investigation of the vasodilating effect of organic nitrates. It has also proved valuable in determining the relative bioavailability of representatives of this class of drugs. This paper deals with personal experience in the use of this method for the investigation of older and newer organic nitrates. The apparatus that was developed to enable electronic data processing of the plethysmographic signals is described. The effects of other pharmacological interventions on finger volume pulse are also discussed, and the finger plethysmographic investigation of vasodilating substances that belong to classes of drugs other than organic nitrates is presented. The possibilities and limits of the method are discussed.

UI	MeSH Term	Description	Entries
D007211	Indoles	Benzopyrroles with the nitrogen at the number one carbon adjacent to the benzyl portion, in contrast to ISOINDOLES which have the nitrogen away from the six-membered ring.
D007548	Isosorbide Dinitrate	A vasodilator used in the treatment of ANGINA PECTORIS. Its actions are similar to NITROGLYCERIN but with a slower onset of action.	Cardonit 40,Dilatrate,Iso-Bid,Isodinit,Isoket,Isoket Retard-120,Isomak R,Isordil,Isotrate,Nitrosorbide,Sorbitrate,Sorbonit,Dinitrate, Isosorbide,Iso Bid,IsoBid,Isoket Retard 120,Isoket Retard120
D010991	Plethysmography	Recording of change in the size of a part as modified by the circulation in it.	Plethysmographies
D011412	Propanolamines	AMINO ALCOHOLS containing the propanolamine (NH2CH2CHOHCH2) group and its derivatives.	Aminopropanols
D011674	Pulse	The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts.	Pulses
D002227	Carbazoles	Benzo-indoles similar to CARBOLINES which are pyrido-indoles. In plants, carbazoles are derived from indole and form some of the INDOLE ALKALOIDS.
D005385	Fingers	Four or five slender jointed digits in humans and primates, attached to each HAND.	Finger
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077261	Carvedilol	A carbazole and propanol derivative that acts as a non-cardioselective beta blocker and vasodilator. It has blocking activity for ALPHA 1 ADRENERGIC RECEPTORS and, at higher doses, may function as a blocker of CALCIUM CHANNELS; it also has antioxidant properties. Carvedilol is used in the treatment of HYPERTENSION; ANGINA PECTORIS; and HEART FAILURE. It can also reduce the risk of death following MYOCARDIAL INFARCTION.	BM 14190,BM-14190,Carvedilol Hydrochloride,Carvedilol, (+),Carvedilol, (+)-isomer,Carvedilol, (+-)-isomer,Carvedilol, (-),Carvedilol, (-)-isomer,Carvedilol, (R)-isomer,Carvedilol, (S)-isomer,Carvedilol, 14C-labeled,Coreg,Coropres,Dilatrend,Eucardic,Kredex,Querto,14C-labeled Carvedilol,BM14190,Carvedilol, 14C labeled
D014665	Vasodilator Agents	Drugs used to cause dilation of the blood vessels.	Vasoactive Antagonists,Vasodilator,Vasodilator Agent,Vasodilator Drug,Vasorelaxant,Vasodilator Drugs,Vasodilators,Vasorelaxants,Agent, Vasodilator,Agents, Vasodilator,Antagonists, Vasoactive,Drug, Vasodilator,Drugs, Vasodilator