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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The immunomodulatory effects of Ipomoea cornea in rats vary depending on life stage

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Author(s):
Hueza, Isis M. [1] ; Gorniak, Silvana L. [2]
Total Authors: 2
Affiliation:
[1] UNIFESP, Inst Ciencias Ambientais Quim & Farmaceut, Diadema, SP - Brazil
[2] Univ Sao Paulo, Fac Med Vet & Zootecnia, BR-05508270 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: HUMAN & EXPERIMENTAL TOXICOLOGY; v. 30, n. 10, p. 1690-1700, OCT 2011.
Web of Science Citations: 3
Abstract

Ipomoea cameo Jacq. ssp. fistulosa (Mart. Ex Choisy; Convolvulaceae; I. cameo) possesses a toxic component: an indolizidine alkaloid swainsonine (SW) that has immunomodulatory effects due to its inhibition of glycoprotein metabolism. It is also known that SW is excreted into both the amniotic fluid and milk of female rats exposed to I. cameo. Thus, the aim of this study was to determine whether SW exposure, either in utero or from the milk of dams treated with I. cornea, modulates offspring immune function into adulthood. In addition, adult (70 days old) and juvenile rats (21 days old) were exposed to I. cameo in order to evaluate several other immune parameters: lymphoid organs relative weight and cellularity, humoral and cellular immune responses. Offspring exposed to I. cornea during lactation developed rheumatoid arthritis (RA) in adulthood after an immunogenic challenge. In addition, both adult and juvenile rats exposed to I. cameo showed discrepancies in several immune parameters, but did not exhibit any decrease in humoral immune response, which was enhanced at both ages. These findings indicate that SW modulates immune function in adult rats exposed to SW during lactation and in juvenile and adult rats exposed to SW as juveniles and adults, respectively. (AU)

FAPESP's process: 01/11444-0 - Inflammatory, immunological and histopathological parameters of prolonged administration of Ipomoea carnea in rats: 1. Evaluation of adult animals. 2. Perinatal study
Grantee:Isis Machado Hueza
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)