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Regulation of tick attachment and rapid engorgement via dopamine receptors in the Asian longhorned tick Haemaphysalis longicornis.
Insect Biochem Mol Biol
January 2025
Department of Vector Entomology, Kyungpook National University, Sangju, Republic of Korea; Research Institute of Invertebrate Vector, Kyungpook National University, Sangju, Republic of Korea. Electronic address:
Dopamine plays multifaceted roles in the physiology of insects and ticks, acting as a key neurotransmitter and modulator of various biological processes. In ticks, it plays a particularly important role in regulating salivary gland function, which is essential for successful tick feeding on hosts. Salivary secretion in ticks is orchestrated by the collection of saliva in the acinar lumen mediated by the dopamine receptor (D1) and the expulsion of collected saliva into the salivary duct mediated by the invertebrate specific D1-like dopamine receptor (InvD1L).
View Article and Find Full Text PDFThe Role of Bitter-Tasting Substances in Salivation and Swallowing: Results of the Pilot Study.
Foods
January 2025
Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow 109240, Russia.
The aim of this study was to investigate the effects of caffeine, vanillin, and epigallocatechin gallate on salivation and swallowing and to find ways to correct their negative effects. Solutions of these substances with an equivalent intensity of bitter taste were compared for this purpose. To compensate for their effect, solutions of adenosine monophosphate, saliva substitute, and their combination were used.
View Article and Find Full Text PDFINTRAORAL SCANNERS AND CONVENTIONAL IMPRESSIONS: A LITERATURE REVIEW.
Georgian Med News
November 2024
2Private dental Clinic "Vurall Dent" Peja, Republic of Kosovo.
Introduction: Using digital technology, respectively the use of intraoral scanners has increased exponentially in recent years. Intraoral scanners have gained traction and widespread use in the field of dental prosthetics and orthodontics. While the use of these digital devices enables the detection of visible areas of error in order to allow clinicians to correct those areas immediately without a need of restarting the entire process from the beginning as it should be done in the conventional method and subsequent procedures.
View Article and Find Full Text PDFTexture Perception and Chewing of Agar Gel by People with Different Sensitivity to Hardness.
Gels
December 2024
Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciences", 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia.
Hardness is one of the dominant sensory characteristics of food. This study estimated the effect of sensitivity to hardness on the texture perception and chewing function using 2, 4, and 6% agar gels. Increasing the concentration of agar resulted in an increase in gel hardness and springiness, measured by texture profile analysis.
View Article and Find Full Text PDFNon-motor asymmetry and dopamine degeneration in Parkinson's disease.
Brain Commun
January 2025
Department of Clinical Medicine, Aarhus University Hospital, Aarhus N, 8200 Aarhus, Denmark.
Asymmetric dopaminergic degeneration of the striatum is a characteristic feature of Parkinson's disease, associated with right-left asymmetry in motor function. As such, studying asymmetry provides insights into progressive neurodegeneration between cerebral hemispheres. Given the impact of Lewy pathology on various neurotransmitter systems beyond the dopaminergic, it may be that other neuronal systems in the predominantly affected hemisphere are similarly affected.
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