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Substance P in peritoneal fluid.

J S Sanfilippo1, R S Williams, M A Yussman

  • 1Department of Obstetrics and Gynecology, University of Louisville School of Medicine, KY 40292.

American Journal of Obstetrics and Gynecology
|January 1, 1992
PubMed
Summary
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Substance P, a neuropeptide, is normally present in peritoneal fluid. Its levels do not significantly differ in women with endometriosis or pelvic adhesions, suggesting it

Area of Science:

  • Reproductive Endocrinology
  • Neuroendocrinology
  • Gynecology

Background:

  • Substance P is a neuropeptide found in reproductive organs and the hypothalamic-pituitary axis.
  • Its presence and role in peritoneal fluid concerning infertility are not well understood.

Purpose of the Study:

  • To determine the presence of Substance P in peritoneal fluid.
  • To investigate the correlation between Substance P levels and causes of infertility, specifically endometriosis and pelvic adhesions.

Main Methods:

  • Radioimmunoassay was used to measure Substance P levels in peritoneal fluid.
  • 66 patients undergoing laparoscopy for infertility were analyzed, categorized into endometriosis, pelvic adhesions, and normal control groups.
  • Peritoneal fluid volume and cycle day were recorded.

Related Experiment Videos

Main Results:

  • Substance P was detected in the peritoneal fluid of all patient groups.
  • Mean Substance P levels were comparable across endometriosis (122 +/- 19 pg/ml), pelvic adhesions (130 +/- 19 pg/ml), and normal control groups (130 +/- 25 pg/ml).
  • No significant differences in Substance P levels were observed based on diagnosis or menstrual cycle phase.

Conclusions:

  • Substance P is a normal component of peritoneal fluid.
  • Pelvic endometriosis and adhesions do not significantly alter peritoneal fluid Substance P levels.
  • Substance P levels in peritoneal fluid are not a marker for these specific infertility causes.