Abstract：
:Previously, we found that Epirrita autumnata larvae, which were fed with leaves that came from a metal polluted area, had an enhanced immune function. To investigate further the cause of the enhanced immunity we examined experimentally the direct influence of the heavy metals, copper and nickel, on the immune function of the geometrid moth we artificially added the metals to the surface of birch leaves to examine their direct effects. As a measurement of the strength of immune function, we used encapsulation rate against a nylon monofilament. A moderate amount of Ni and Cu in the diet of moth larvae increased their encapsulation rate, but a large amount of Cu caused the immune function to decrease. The results indicate that Ni and Cu have direct effects on immunity. Moderate amounts of those metals increase immune function, but large amounts lead to inhibition of immune function.
journal_name
Chemospherejournal_title
Chemosphereauthors
van Ooik T,Pausio S,Rantala MJdoi
10.1016/j.chemosphere.2008.02.014subject
Has Abstractpub_date
2008-05-01 00:00:00pages
1840-4issue
10eissn
0045-6535issn
1879-1298pii
S0045-6535(08)00166-5journal_volume
71pub_type
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