Elevated levels of TNF (a marker of inflammation) have also been found in substance abusers and drug-addicted animals (alcohol, heroin, meth).
Amazinga aphakeme we-TNF (umaka wokuvuvukala) nawo atholakele kubahlukumezi bezidakamizwa nasezilwaneni ezidla izidakamizwa (utshwala, i-heroin, i-meth).