Secondary amenorrhoea due to persistent corpus luteum in brucellosis

Elevated levels of interleukin-6 in the follicular fluid at the time of oocyte retrieval for in vitro fertilization may predict the development of early-form ovarian hyperstimulation syndrome

OBJECTIVE

To determine the possible predictive role of interleukin-2 (IL-2), IL-6, and tumor necrosis factor (TNF-alpha) in the development of early-form ovarian hyperstimulation syndrome (OHSS).

DESIGN

Nested, case-control study.

SETTING

An IVF unit, university-based program.

PATIENT(S)

Follicular fluid (FF) was obtained from 322 high responders. The study group and control group comprised 10 patients who developed early, severe OHSS and 10 who did not develop OHSS, respectively. An additional control group included 10 low-responder patients who did not develop OHSS.

INTERVENTION(S)

Ovulation induction with hMG combined with GnRH analogue.

MAIN OUTCOME MEASURE(S)

All FF samples were tested for IL-2, IL-6, and TNF-alpha. The patient's serum was tested for mean E2 and P concentrations.

RESULT(S)

Interleukin-6 levels in the FF were significantly higher in the OHSS group than in the two control groups, whereas no differences were found in IL-2 and TNF-alpha. No correlation was found between the FF concentrations of IL-2, IL-6, and TNF-alpha and the mean serum E2 levels or the number of oocytes retrieved.

CONCLUSION(S)

Elevated levels of IL-6 in the preovulatory FF at the time of oocyte retrieval for IVF may predict the development of early-form OHSS in high responders.

Interleukin-10 in preovulatory follicular fluid of patients undergoing in-vitro fertilization and embryo transfer

PROBLEM

The present study aimed at investigating the presence of Interleukin-10 (IL-10) in preovulatory follicular fluid (FF) and its possible correlation with 17-beta-estradiol (E2) and progesterone (P) levels, and treatment outcome in patients undergoing in-vitro fertilization-embryo transfer (IVF-ET).

METHODS

Twenty consecutive patients with tubal factor infertility who underwent oocyte retrieval for IVF-ET were assayed for pooled, preovulatory FF levels of IL-10, E2, and P.

RESULTS

The mean FF levels of IL-10, E2, and P were 78.7 +/- 104.7 pg/ml, 2,787.0 +/- 726.1 pg/ml, and 1.5 +/- 0.8 ng/ml, respectively. No correlation was found between preovulatory FF concentration of IL-10, E2, oocyte number, oocyte fertilization rate, embryo quality, and pregnancy rate. The levels of IL-10 were found to be negatively correlated with P concentration, although not significantly (P = 0.057).

CONCLUSION

Interleukin-10 exists in the preovulatory FF. Further investigations are needed to determine the role of IL-10 in the folliculogenesis.