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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
The T-helper 1/T-helper 2 balance in peripheral blood of women with hyperemesis gravidarum.
American Journal of Obstetrics and Gynecology 2002 December
OBJECTIVE: The purpose of this study was to evaluate the T-helper 1/T-helper 2 balance and its relation with pregnancy-related hormones in hyperemesis gravidarum.
STUDY DESIGN: The T-helper 1/T-helper 2 ratio and plasma progesterone and estrogen levels were examined in the peripheral blood of 22 women with hyperemesis gravidarum and normal pregnancies. The proportion of CD4-positive cells that expressed intracellular cytokines (interferon gamma and interleukin-4) were analyzed by blood flow cytometry. The ratio of interferon gamma-secreting cells to interleukin-4-secreting cells was taken as the T-helper 1/T-helper 2 ratio.
RESULTS: In hyperemesis gravidarum, the proportions of interleukin-4-secreting cells increased, and the T-helper 1/T-helper 2 ratio averaged 8.4 +/- 0.9, which was significantly lower than in normal pregnancy (11.6 +/- 1.1, P <.05). The changes in the T-helper 1/T-helper 2 ratio in hyperemesis gravidarum were accompanied by the elevation of progesterone and estrogen levels.
CONCLUSION: A further shift of the T-helper 1/T-helper 2 balance to the T-helper 2 dominance in hyperemesis gravidarum may be related to the increase of progesterone and estrogen levels.
STUDY DESIGN: The T-helper 1/T-helper 2 ratio and plasma progesterone and estrogen levels were examined in the peripheral blood of 22 women with hyperemesis gravidarum and normal pregnancies. The proportion of CD4-positive cells that expressed intracellular cytokines (interferon gamma and interleukin-4) were analyzed by blood flow cytometry. The ratio of interferon gamma-secreting cells to interleukin-4-secreting cells was taken as the T-helper 1/T-helper 2 ratio.
RESULTS: In hyperemesis gravidarum, the proportions of interleukin-4-secreting cells increased, and the T-helper 1/T-helper 2 ratio averaged 8.4 +/- 0.9, which was significantly lower than in normal pregnancy (11.6 +/- 1.1, P <.05). The changes in the T-helper 1/T-helper 2 ratio in hyperemesis gravidarum were accompanied by the elevation of progesterone and estrogen levels.
CONCLUSION: A further shift of the T-helper 1/T-helper 2 balance to the T-helper 2 dominance in hyperemesis gravidarum may be related to the increase of progesterone and estrogen levels.
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