Nov 1, 1979

The motility of the bile ducts in pigeons and the effects of some autonomic drugs on it (author's transl)

Nihon Heikatsukin Gakkai zasshi
K Tateya


The motility of the bile ducts of the pigeon and the effects of autonomic drugs on it were studied in vivo and in vitro. Peristalses which originated rhythmically at the hepatic end of the duct propagated to the duodenal end and excreted the bile into it. Antiperistalses did not occur in vivo. The intervals of peristalses of the duct in vivo changed variably while those of the spontaneous contractions in the isolated duct were fairly constant. No synchronization between the electrical activities recorded at the duodenal end of the duct and the duodenum close to the duct was observed. Cholinergic drugs increased motilities of the duct and duodenum. Adrenaline, noradrenaline and phenylephrine induced the excitation of the duct and isoprenaline slight inhibition. All of these sympathomimetic drugs inhibited duodenal motility. The excitatory effect was abolished by alpha-adrenergic blocking agent, and the inhibitory one was abolished by alpha- and/or beta- adrenergic blocking agents. These results suggest that the bile duct is functionally independent of the duodenum and responsibility of the adrenergic drugs are different between two organs.

  • References
  • Citations1


  • We're still populating references for this paper, please check back later.
  • References
  • Citations1


Mentioned in this Paper

Entire Duct
Cholinergic Agents
Cell Motility
Allergy Testing Pigeon
Contraction (Finding)

Trending Feeds


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.