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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

HMT regulates histamine-induced Cl- secretion across the canine tracheal epithelium.

Although histamine N-methyltransferase (HMT), the primary enzyme responsible for the inactivation of histamine, has been shown to exist in the airway epithelium, it is still unknown whether this enzyme regulates ion transport across the airway epithelium. Using an Ussing chamber, we examined the effect of a HMT inhibitor, SKF 91488, on potential difference (PD) and short circuit current (SCC) in epithelial membranes from the posterior portion of canine trachea. SKF 91488 itself did not significantly alter PD or SCC values. Pretreatment with SKF 91488 significantly augmented PD and SCC induced by histamine. Amiloride did not significantly alter the augmentation by SKF 91488 in histamine-induced PD and SCC rises. These findings indicate that HMT regulates Cl- secretion across airway epithelium.[1]

References

  1. HMT regulates histamine-induced Cl- secretion across the canine tracheal epithelium. Yamada, K., Shimura, S., Satoh, M., Sasaki, T., Yamauchi, K., Takishima, T. Respiration physiology. (1994) [Pubmed]
 
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