Abstract:
:Exposure to phosphine (PH3 ), a common grain fumigant, is characterized by diverse nonspecific symptoms and a high mortality rate. Although PH3 poisoning is thought to target oxidative respiration, the exact mechanism of action remains largely unknown, resulting in limited treatment options. In our study, the effects of PH3 on female rats were assessed to elucidate potential sex-specific differences and obtain a more comprehensive understanding of PH3 toxicity. Lethality, physiology, and behavior were evaluated in female rats exposed to gaseous PH3 (13,200-26,400 ppm × min), and results were compared with corresponding findings in male rats. Median lethal concentration-time (LCt50 ) and time of death (tTOD ) did not differ significantly between the sexes. Cardiopulmonary changes induced by PH3 were also of comparable magnitude, although temporally, respiratory responses occurred earlier and cardiovascular variations manifested later in female rats. Behavioral observations corroborated physiological findings and indicated a response to hypoxic conditions and low cardiac output. Together, these results provided insights on the toxic mechanisms of PH3 , in particular, its potential interference with oxygen transport and circulation.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Tuet WY,Racine MC,Jennings L,Pierce SA,Tressler J,McCranor BJ,Wong Bdoi
10.1111/nyas.14343subject
Has Abstractpub_date
2020-11-01 00:00:00pages
168-179issue
1eissn
0077-8923issn
1749-6632journal_volume
1479pub_type
杂志文章abstract::Whole and nonadherent Peyer's patch cells were shown to present antigen to cloned antigen specific T-cells, albeit less efficiently than spleen cells. Unlike spleen cells, adherent PP cells did not present antigen, and PP lacked cells with classical dendritic morphology. The antigen presenting and MLR-stimulating cell...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1999.tb09529.x
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
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