Mar 1, 1976

Hypotensive action of propranolol and a new beta-blocking agent, D-32 in conscious normotensive and renal hypertensive dogs

Archives Internationales De Pharmacodynamie Et De Thérapie
N HimoriY Hiramatsu

Abstract

The hypotensive actions of dl-propranolol and a new beta-blocking agent, dl-tert-butylamino-3-(2', 3'-dimethylphenoxy)-2-propanol hydrochloride (D-32) were studied in conscious normotensive and renal hypertensive dogs, using a cross-over design. The effects were compared with that of placebo (lactose 200 mg/head, p.o.) administered in a blind fashion. A marked reduction in systolic blood pressure, from 158 +/- 2.9 to 124 +/- 2.3 (mean +/- S.E.) mm Hg, was observed at 3 hr after administration of 50 mg/kg, p.o. of D-32 in renal hypertensive dogs but not in normotensive ones. In both normotensive and renal hypertensive dogs, 10 and 50 mg/kg, p.o. of D-32 caused a marked increase in heart rate. Intravenous infusion of p-OH D-32, a main metabolite of D-32 in dogs, at a rate of 1 mg/kg per min for 5 min into renal hypertensive dogs caused a significant, long-lasting fall in blood pressure and a sustained increase in heart rate, whereas that of D-32 (1 mg/kg per min for 5 min) failed to do so. Propranolol (10 and/or 50 mg/kg, p.o.) produced no significant changes in blood pressure and heart rate in both preparations. These results indicate that D-32 causes a fall in blood pressure in conscious renal hypertensive dogs mainly by a meta...Continue Reading

  • References
  • Citations

References

  • We're still populating references for this paper, please check back later.
  • References
  • Citations

Citations

  • This paper may not have been cited yet.

Mentioned in this Paper

Depression, Chemical
Lactose 200 MG
Systolic Blood Pressure Measurement
Diastolic Blood Pressure
TERT gene
Kidney
Propanolamines
Hypotensive
Propranolol
Metabolite

About this Paper

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Bone Marrow Neoplasms

Bone Marrow Neoplasms are cancers that occur in the bone marrow. Discover the latest research on Bone Marrow Neoplasms here.

IGA Glomerulonephritis

IgA glomerulonephritis is a chronic form of glomerulonephritis characterized by deposits of predominantly Iimmunoglobin A in the mesangial area. Discover the latest research on IgA glomerulonephritis here.

Cryogenic Electron Microscopy

Cryogenic electron microscopy (Cryo-EM) allows the determination of biological macromolecules and their assemblies at a near-atomic resolution. Here is the latest research.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

LRRK2 & Immunity During Infection

Mutations in the LRRK2 gene are a risk-factor for developing Parkinson’s disease. However, LRRK2 has been shown to function as a central regulator of vesicular trafficking, infection, immunity, and inflammation. Here is the latest research on the role of this kinase on immunity during infection.

Antiphospholipid Syndrome

Antiphospholipid syndrome or antiphospholipid antibody syndrome (APS or APLS), is an autoimmune, hypercoagulable state caused by the presence of antibodies directed against phospholipids.

Meningococcal Myelitis

Meningococcal myelitis is characterized by inflammation and myelin damage to the meninges and spinal cord. Discover the latest research on meningococcal myelitis here.

Alzheimer's Disease: MS4A

Variants within membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease by recent genome-wide association studies. Here is the latest research.