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C. Olivieri Sangiacomo 《Cellular and molecular life sciences : CMLS》1969,25(12):1323-1324
it]Riassunto La denervazione dei calici gustativi provoca due tipi fondamentali di alterazioni cellulari: il primo è rappresentato da lisosomi e citosegregosomi che colpiscono le cellule scarsamento differenziate, il secondo è invece rappresentato da lesioni che sconvolgono l'intera organizzazione citoplasmatica delle cellule di II tipo.The author wishes to thank Mr. M. DrIorio and Mr. V.Panetta for their techeical assistance. 相似文献
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C O Sangiacomo 《Experientia》1969,25(12):1323-1324
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C. Olivieri-Sangiacomo 《Cellular and molecular life sciences : CMLS》1972,28(10):827-828
Riassunto Nella presente nota è brevemente analizzato l'aspetto ultrastrutturale di una cellula talora osservabile nel calice gustativo e caratterizzata da una notevole abbondanza di reticolo endoplasmatico liscio.
Acknowledgment. The technical help ofV. Panetta was greatly appreciated. 相似文献
Acknowledgment. The technical help ofV. Panetta was greatly appreciated. 相似文献
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Changes in MAO activity after hypophysectomy (HX) are not due to adrenal insufficiency. ACTH failed to reverse the effects of HX and enhanced the depression of cardiac and spleenic MAO. The data suggests both facilitatory and inhibitory effects of pituitary hormones on MAO activity. 相似文献
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After cutting the preganglionic nerve trunk of the rat's superior cervical ganglion, the levels of cAMP and cGMP were measured in a postoperative period of between 3 and 21 dad by a partial recovery after 7 to 21 days. 相似文献
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Rat taste cells responded to relatively low concentrations of K-benzoate with a hyperpolarization and to the high concentrations with a depolarization. During both responses the membrane resistance of a taste cell decreased. Depolarization elicited by application of a combination of 0.25 M NaCl and 0.05 M K-benzoate was smaller than that by the NaCl alone, indicating a depressant action of K-benzoate. 相似文献
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Following the suppression of renewal of rat taste cells by vinblastine sulphate, the preference for sucrose decreased markedly while the aversion to quinine did not change. The results suggest that the sensitivity of taste cells to sucrose decreases with their aging, but the sensitivity to quinine increases. 相似文献
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S Islam 《Experientia》1979,35(9):1206-1207
Conditioned taste aversion (CTA) established in rats by associating saccharin drinking with subsequent poisoning by Russell's viper venom. Retention test revealed 76 and 56% reduction of saccharin intake in venom and antivenom-venom groups. No CTA was observed in antivenom and control groups. 相似文献
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Bitter peptides and bitter taste receptors 总被引:1,自引:0,他引:1
Bitter peptides are a structurally diverse group of oligopeptides often generated in fermented, aged, and hydrolyzed food
products that make them unfavorable for consumption. Humans perceive bitterness by a repertoire of 25 human bitter receptors,
termed T2Rs. Knowledge of the structural features of bitter receptors and of the factors that stimulate bitter receptors will
aid in understanding the mechanism responsible for bitter taste perception. This article reviews the current knowledge regarding
structural features of bitter peptides and bitter taste receptors.
Received 24 November 2008; received after revision 11 December 2008; accepted 16 December 2008 相似文献