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Monday, February 10, 2020 | History

2 edition of Peptides as cotransmitters in salivary secretion found in the catalog.

Peptides as cotransmitters in salivary secretion

Olof Larsson

Peptides as cotransmitters in salivary secretion

histochemical, biochemical and functional studies of parotid and submandibular glands

by Olof Larsson

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  • 38 Currently reading

Published by s.n.] in [S.l .
Written in English


Edition Notes

Thesis (Ph.D.)--Department of Pharmacology, Karolinska Institutet.

Statementby Olof Larsson.
ID Numbers
Open LibraryOL14720124M

North Carolina State University Summary: Researchers have developed a new technique to identify the proteins secreted by a cell. Using this approach, the researchers were able to identify proteins that are secreted by human embryonic stem cells. The glands are located posterior to the mandibular ramus and anterior to the mastoid process of the temporal bone. This has drawbacks, because the proteins of interest are fairly rare compared to the proteins that are already in the medium -- which are used to grow and support the cells in the first place. It is chemically designed to break down the molecular structure of food, which in turn gives food its taste.

Excess thyroid hormone leads to a decreased release of thyroid stimulating hormone TSH is an example of what kind of feedback? If the gland retains its shape as a tube throughout it is termed a tubular gland. These are the compound tubular, compound acinar, and compound tubulo-acinar glands. The key to understanding the mechanism of salivary secretion is in identifying the individual components of the secretory process and then in visualising how these components fit together. Challenge your Facebook and Twitter friends. When a person becomes stimulated by food, either due to thought, smell, visual sensations, taste, or even dreams, saliva is generated in greater quantities through a physiological response that triggers the parasympathetic impulses.

These are the simple tubular, simple branched tubular, simple coiled tubular, simple acinar, and simple branched acinar glands. Note that in this regard both parasympathetic and sympathetic stimuli result in an increase in salivary gland secretions. Regulation Salivation is completely controlled by the autonomic nervous system which increases saliva generation, induces myoepithelial cell contraction, and increases blood flow to the salivary glands. The saliva, when swallowed, helps to remove the irritating factor in the gastrointestinal tract by diluting or neutralizing the irritant substances. The parotid, the submandibular, and the sublingual glands are considered the three main glands, despite the fact that they are extrinsic glands.


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Peptides as cotransmitters in salivary secretion book

Salivary Organs Saliva is secreted by three glands which produce saliva of slightly different composition. In addition, salivation itself directly dilates the blood vessels, thus providing increased salivatory gland nutrition as needed by the secreting cells.

In many glands, the number of branches is limited, in others salivary, pancreas a very large structure is finally formed by repeated growth and sub-division. The secretory protein leaves the Golgi apparatus by an uncoated vesicle.

Glucagon travels to the liver and promotes glycogenolysis and gluconeogenesis. Production[ edit ] The production of a secretory protein starts like any other protein. If this fails too the protein is exported to the cytosol and labelled for destruction.

It is located about two fingers above the Adam's apple laryngeal prominence and about two inches apart under the chin. The electrolyte content adds acid buffering and remineralization capabilities and the fluid vehicle dilutes and clears the oral environment.

Salivary Secretion

Epinephrine from the adrenal meddula is directly stimulated by? The heterogeneous family of proline-rich, human salivary glycoproteins, such as PRB1 and PRH1are salivary gland specific proteins with highest level of expression. The parotid glands only generate a serous secretion whereas the submaxillary glands and the sublingual glands generate both serous and mucinous fluid.

Holocrine glands — the entire cell disintegrates to secrete its substances, e. This sequence is recognised by a cytosolic protein, SRP Signal Recognition Particlewhich stops the translation and aids in the transport of the mRNA-ribosome complex to an SRP receptor found in the membrane of the endoplasmic reticulum.

But the proteins can also interact with other cells, influencing them to perform any biological function. However, these ion transport mechanisms are easily overwhelmed during periods of high salivation and in such a context saliva possess a similar electrolyte composition as that of plasma.

Blood vessels and nerves enter the glands at the hilum and gradually branch out into the lobules. Which of the following conditions can be caused by an excess in secretion of this hormone in adults?

Randall, D. Mucous cells are able to produce a thicker, stringier liquid, called mucous. There are two distinctive varieties of secretory cells. These glands often secrete hormones which play an important role in maintaining homeostasis. If after a first attempt the folding is unsuccessful, a second folding is attempted.

Some vesicles don't fuse immediately and await a signal before starting the fusing.The endocrine system consists of glands that secrete hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

Endocrine glands consist of groups of secretory cells which are surrounded by capillary networks. Hormones secreted by the secretory cells move into the bloodstream through the capillary networks. human digestive system - Production and secretion of peptides - Control of the activity of the specialized cells in the digestive system that are concerned with motor and secretory functions depends upon signals received at their cell membranes.

These signals originate in either endocrine or nerve cells and are carried to the target cell by amino or peptide “messenger” molecules. THE FUNCTION OF SALIVARY PROTEINS AND THE REGULATION OF THEIR SECRETION BY SALIVARY GLANDS Gordon B.

Proctor and Guy H. Carpenter Secretory and Soft Tissue Research Unit, King's College School of Medicine and Dentistry, London, UK SUMMARY • Salivary glycoproteins give saliva its characteristic. The physiology of salivary secretion.

New technique for identifying proteins secreted by cells

Salivary secretion is an important parameter reflecting the health status of an individual and has been used clinically for the diagnosis of various oral. Sep 25,  · Researchers have developed a new technique to identify the proteins secreted by a cell.

The new approach should help researchers collect precise data on cell biology, which is critical in fields. Oct 23,  · These observations suggest that, in addition to MHC peptides, a compound involved in the effect must exist and this compound is testosterone dependent and thus male specific.

Exocrine gland-secreting peptide 1 (ESP1) is a testosterone-dependent peptide that Cited by: 9.