s . Journal: Arch . Environ . Contam . Toxicol . Citation: V : 00 ( 0 ) P : 000-00 Type: ARTICLE Literature: oryza Field: abstract Doc ID: pub00000000 Accession (PMID): 00000000 Matching Sentences: [ Sen. 0, subscore: 0.00 ]: The rice herbicide propanil induces alterations in the mouse immune system , causing significant decreases in T cell-dependent and T cell-independent antibody responses . This postemergent herbicide is used extensively in rice production in the Mississippi River delta region of the southern United States . The aerial application and airborne drift of propanil may pose health concerns to exposed farm families living adjacent to sprayed rice fields . To determine if aerial spraying of propanil increases risks of altered immune responses in families bordering rice fields , immune parameters were assessed during a 0-year study . Families living within 000 yards of rice fields were compared in a case control study to farm families whose homes exceeded 0 mile from any rice field . Blood was analyzed in adults ( n = 00 ) and children ( n = 00 ) at three time intervals : ( 0 ) preseason , prior to propanil application ; ( 0 ) 0-0 days after aerial application of propanil to rice fields ; and ( 0 ) postseason , following harvest Exposed adults and children were compared with controls for a number of immune parameters . Total cell count and the percentage of various lymphocytes ( T cells , B cells , CD0+ helper cells , and CD0+ suppressor cells ) and natural killer ( NK ) cells , mitogen-induced cell proliferation , cytokine ( IL-0+ ) production , and NK cell function were assessed . [ Sen. 0, subscore: 0.00 ]: The rice herbicide propanil induces alterations in the mouse immune system , causing significant decreases in T cell-dependent and T cell-independent antibody responses . This postemergent herbicide is used extensively in rice production in the Mississippi River delta region of the southern United States . The aerial application and airborne drift of propanil may pose health concerns to exposed farm families living adjacent to sprayed rice fields . To determine if aerial spraying of propanil increases risks of altered immune responses in families bordering rice fields , immune parameters were assessed during a 0-year study . Families living within 000 yards of rice fields were compared in a case control study to farm families whose homes exceeded 0 mile from any rice field . Blood was analyzed in adults ( n = 00 ) and children ( n = 00 ) at three time intervals : ( 0 ) preseason , prior to propanil application ; ( 0 ) 0-0 days after aerial application of propanil to rice fields ; and ( 0 ) postseason , following harvest Exposed adults and children were compared with controls for a number of immune parameters . Total cell count and the percentage of various lymphocytes ( T cells , B cells , CD0+ helper cells , and CD0+ suppressor cells ) and natural killer ( NK ) cells , mitogen-induced cell proliferation , cytokine ( IL-0+ ) production , and NK cell function were assessed . 