منابع مشابه
The effects of serotonin and dopamine on salivary secretion by isolated cockroach salivary glands
We have studied the effects of 3-hydroxytyramine (dopamine) and 5-hydroxytryptamine (serotonin) on (1) the rates of salivation from isolated salivary glands of the cockroach Periplaneta americana, (2) the protein content of the saliva, and (3) the ultrastructure of the salivary gland epithelium. The rates of neurotransmitter-induced salivation varied in a dose-dependent manner within the concen...
متن کاملSalivary Glands
Mod&r, Lavstedt, and Ahlund studied the oral health effects of smoking and snuff use in 232 Swedish school children ages 13 to 14 years (119 boys and 113 girls) (36). Thirteen (11 percent) of the boys used snuff. The children were interviewed regarding their tobacco and toothbrushing habits, and examin ers (blind to the interview results) clinically assessed the degree of gingival mflammation, ...
متن کاملSalivary Glands
Saliva plays an essential role in maintaining oral health. Alterations in salivary function lead to compromise of oral tissues and functions and have a large impact on a patient’s quality of life. Reductions in salivary flow most commonly manifest as symptoms of oral dryness. This subjective complaint of dry mouth is termed xerostomia, whereas objective alterations in salivary performance, quan...
متن کاملDopaminergic and serotonergic innervation of cockroach salivary glands: distribution and morphology of synapses and release sites.
The paired salivary glands in the cockroach are composed of acini with ion-transporting peripheral P-cells and protein-secreting central C-cells, and a duct system for the modification of the primary saliva. Secretory activity is controlled by serotonergic and dopaminergic neurons, whose axons form a dense plexus on the glands. The spatial relationship of release sites for serotonin and dopamin...
متن کاملSource, topography and excitatory effects of GABAergic innervation in cockroach salivary glands.
Cockroach salivary glands are innervated by dopaminergic and serotonergic neurons. Both transmitters elicit saliva secretion. We studied the distribution pattern of neurons containing gamma-aminobutyric acid (GABA) and their physiological role. Immunofluorescence revealed a GABA-immunoreactive axon that originates within the subesophageal ganglion at the salivary neuron 2 (SN2) and this extends...
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ژورنال
عنوان ژورنال: Nature
سال: 1874
ISSN: 0028-0836,1476-4687
DOI: 10.1038/010439c0