| 词汇 | histamine |
| 释义 | histamine noun[ U ] biology, chemistry specializeduk /ˈhɪs.tə.miːn/ us /ˈhɪs.tə.miːn/ a chemical in the body that is released after an injury or during an allergic reaction组胺（身体受伤或过敏时释放的一种物质） Biochemistry adipose adrenalin albumin aldosterone amino acid endonuclease endorphin enzymatic enzymatically enzyme mRNA mycoprotein non-enzymatic nuclease nucleic acid spike protein T level testosterone trace element transfer RNA Examples of histaminehistamine Very likely, histamine-binding proteins will be found in the majority, if not all, tick species. We have previously localized histamine receptors in retinas of both of the species studied here. We can conclude that neonatal rat astrocytes actively transport histamine. Two histamine-binding proteins are present in females and one in males. But in two other, similar experiments, histamine increased efflux slightly (about 1.5 times). In monkeys, there were roughly equal numbers of increases and decreases in firing rate in response to histamine. The effects of histamine in mammalian retinas was controlled by the shutter as described above. Thus, the major effects of histamine were on the maintained activity of retinal ganglion cells. This diversity of responses to histamine is not unique to monkey retinal ganglion cells. In rats, on the other hand, the firing rates of retinal ganglion cells were increased by histamine in 91% of cells examined. These results indicate that histamine en glutamate inhibit hypotonic-induced cell swelling. Modifying effects of histamine on circadian rhythms and neuronal excitability. In fact, it is difficult to reconcile histological evidence with a direct effect of mast cell histamine on larvae. In vivo and in vitro experiments show that a proportion of the larvae will detach following injection or infusion of histamine. A specific transporter for the neurotransmitter histamine has not been found yet. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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