Amniotic fluid soluble fas levels in intra-amniotic infection

Chaur Dong Hsu, Shih Feng Hong, Hassan Harirah, Ray Bahado-Singh, Li Cheng Lu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Objective: Membrane Fas can induce apoptosis in sensitive cells. It has been reported that soluble Fas (sFas) is elevated in septicemia. We examined amniotic fluid (AF) sFas levels in patients with and without intra-amniotic infection. Methods: Forty-two AF specimens were studied. Intra-amniotic infection was defined as the presence of a positive AF culture. Twenty-one specimens were from patients with intra-amniotic infection and 21 were from patients without intra-ammotic infection. Amniotic fluid sFas was determined by an enzyme immunoassay and normalized by AF creatinine levels. The Mann-Whitney U test, contingency table method, and Spearman's rank correlation test were used for statistical analyses. Data were expressed as median with ranges. Results: There were no significant differences in maternal age, gestational age, parity, and race between the groups. The median AF sFas was significantly higher with intra-amniotic infection than without it (5.07 U/mL, range 0.32-13.25 compared with 1.95 U/mL, range 0.01-5.35; P = .004). After normalizing to AF creatinine, infected fluids also had significantly higher median sFas/creatinine than uninfected amniotic fluids (289.1 U/mg creatinine, range 16.6-920.5 compared with 126.8 U/mg creatinine, range 0.5-546.2; P = .01). Amniotic fluid sFas and sFas/creatinine were positively correlated with AF leukocytes and negatively correlated with AF glucose. Conclusion: Elevated AF sFas is associated with intra-amniotic infection. High production of AF sFas in intra-amniotic infection may play a role in the inhibition of apoptosis of AF leukocytes, leading to the persistence of inflammation. Copyright (C) 2000 The American College of Obstetricians and Gynecologists.

Original languageEnglish (US)
Pages (from-to)667-670
Number of pages4
JournalObstetrics and Gynecology
Volume95
Issue number5
DOIs
StatePublished - May 2000
Externally publishedYes

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Amniotic Fluid
Infection
Creatinine
Leukocytes
Apoptosis
Maternal Age
Nonparametric Statistics
Parity
Immunoenzyme Techniques
Gestational Age
Sepsis

ASJC Scopus subject areas

  • Obstetrics and Gynecology

Cite this

Amniotic fluid soluble fas levels in intra-amniotic infection. / Hsu, Chaur Dong; Hong, Shih Feng; Harirah, Hassan; Bahado-Singh, Ray; Lu, Li Cheng.

In: Obstetrics and Gynecology, Vol. 95, No. 5, 05.2000, p. 667-670.

Research output: Contribution to journalArticle

Hsu, Chaur Dong ; Hong, Shih Feng ; Harirah, Hassan ; Bahado-Singh, Ray ; Lu, Li Cheng. / Amniotic fluid soluble fas levels in intra-amniotic infection. In: Obstetrics and Gynecology. 2000 ; Vol. 95, No. 5. pp. 667-670.
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abstract = "Objective: Membrane Fas can induce apoptosis in sensitive cells. It has been reported that soluble Fas (sFas) is elevated in septicemia. We examined amniotic fluid (AF) sFas levels in patients with and without intra-amniotic infection. Methods: Forty-two AF specimens were studied. Intra-amniotic infection was defined as the presence of a positive AF culture. Twenty-one specimens were from patients with intra-amniotic infection and 21 were from patients without intra-ammotic infection. Amniotic fluid sFas was determined by an enzyme immunoassay and normalized by AF creatinine levels. The Mann-Whitney U test, contingency table method, and Spearman's rank correlation test were used for statistical analyses. Data were expressed as median with ranges. Results: There were no significant differences in maternal age, gestational age, parity, and race between the groups. The median AF sFas was significantly higher with intra-amniotic infection than without it (5.07 U/mL, range 0.32-13.25 compared with 1.95 U/mL, range 0.01-5.35; P = .004). After normalizing to AF creatinine, infected fluids also had significantly higher median sFas/creatinine than uninfected amniotic fluids (289.1 U/mg creatinine, range 16.6-920.5 compared with 126.8 U/mg creatinine, range 0.5-546.2; P = .01). Amniotic fluid sFas and sFas/creatinine were positively correlated with AF leukocytes and negatively correlated with AF glucose. Conclusion: Elevated AF sFas is associated with intra-amniotic infection. High production of AF sFas in intra-amniotic infection may play a role in the inhibition of apoptosis of AF leukocytes, leading to the persistence of inflammation. Copyright (C) 2000 The American College of Obstetricians and Gynecologists.",
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AB - Objective: Membrane Fas can induce apoptosis in sensitive cells. It has been reported that soluble Fas (sFas) is elevated in septicemia. We examined amniotic fluid (AF) sFas levels in patients with and without intra-amniotic infection. Methods: Forty-two AF specimens were studied. Intra-amniotic infection was defined as the presence of a positive AF culture. Twenty-one specimens were from patients with intra-amniotic infection and 21 were from patients without intra-ammotic infection. Amniotic fluid sFas was determined by an enzyme immunoassay and normalized by AF creatinine levels. The Mann-Whitney U test, contingency table method, and Spearman's rank correlation test were used for statistical analyses. Data were expressed as median with ranges. Results: There were no significant differences in maternal age, gestational age, parity, and race between the groups. The median AF sFas was significantly higher with intra-amniotic infection than without it (5.07 U/mL, range 0.32-13.25 compared with 1.95 U/mL, range 0.01-5.35; P = .004). After normalizing to AF creatinine, infected fluids also had significantly higher median sFas/creatinine than uninfected amniotic fluids (289.1 U/mg creatinine, range 16.6-920.5 compared with 126.8 U/mg creatinine, range 0.5-546.2; P = .01). Amniotic fluid sFas and sFas/creatinine were positively correlated with AF leukocytes and negatively correlated with AF glucose. Conclusion: Elevated AF sFas is associated with intra-amniotic infection. High production of AF sFas in intra-amniotic infection may play a role in the inhibition of apoptosis of AF leukocytes, leading to the persistence of inflammation. Copyright (C) 2000 The American College of Obstetricians and Gynecologists.

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