Air liur: Perbedaan antara revisi

A common belief is that saliva contained in the mouth has natural [[disinfectant]]s, which leads people to believe it is beneficial to "lick their wounds". Researchers at the [[University of Florida]] at [[Gainesville, Florida|Gainesville]] have discovered a [[protein]] called [[nerve growth factor]] (NGF) in the saliva of [[mouse|mice]]. Wounds doused with NGF healed twice as fast as untreated and unlicked wounds; therefore, saliva does have some curative powers in some species. NGF has not been found in human saliva; however, researchers find human saliva contains such [[antibacterial]] agents as secretory [[IgA]], [[lactoferrin]], and [[lactoperoxidase]]. It has not been shown that licking your wounds actually [[disinfect]]s them, but the licking action is likely to help clean the wound by removing larger contaminants such as dirt and may help to directly remove infective bodies by brushing them away.-->

 

 

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