TY - JOUR
T1 - Endometrial signaling pathways during ovarian stimulation for assisted reproduction technology
AU - Detti, Laura
AU - Uhlmann, Rebecca A.
AU - Fletcher, Nicole M.
AU - Diamond, Michael P.
AU - Saed, Ghassan M.
N1 - Funding Information:
Supported in part by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (grant no. K 12 HD-01254-11 ), National Institutes of Health, Bethesda, Maryland , and in part by an institutional grant from the University of Tennessee Health Science Center, Memphis, Tennessee .
PY - 2013/9
Y1 - 2013/9
N2 - Objective To determine the effects of different hormonal levels on endometrial biochemical development during ovulation induction for assisted reproduction technology (ART) cycles. Design Prospective controlled study. Setting University center. Patient(s) Nine women during a natural cycle (control) and 9 oocyte donors (treated) during an ART cycle. Intervention(s) At the time consistent with day 3 embryo transfer (LH+5 in control, hCG+5 in treated), transvaginal ultrasound, endometrial biopsy, and blood sampling were performed. Real-time reverse-transcription polymerase chain reaction was used to measure mRNA levels for insulin receptor (InsR), type I IGF receptor (IGFRI), prolactin receptor (PRL-R), androgen receptor (AR), TSH receptor (TSHR), nuclear receptors for T3 and T4 (TRα1, TRα2, and TRβ1), iodothyronine deiodinase (DIO2), and 1,25-dihydroxyvitamin D3 receptor (VDR) in the endometrial tissue. Main Outcome Measure(s) Biochemical endometrial development. Result(s) IGFRI mRNA levels were 69% lower in treated patients than in control subjects, 0.12 ± 0.005 pg/μg RNA versus 0.39 ± 0.01 pg/μg RNA. TSHR mRNA was 57% lower, 2.6 ± 0.1 fg/μg RNA versus 6.0 ± 0.2 fg/μg RNA. TRα1 and TRα2 mRNA did not change, but TRβ1 mRNA levels were 63% higher. DIO2 mRNA was 63% lower, 1.2 ± 0.07 pg/μg RNA versus 3.2 ± 0.2 pg/μg RNA. InsR mRNA levels, despite being 68% lower in treated patients, did not reach significance, and PRL-R, AR, and VDR did not significantly change. Conclusion(s) Exposure of the endometrium to ovarian stimulation appears to influence insulin and thyroid hormone signaling pathways in the decidua at day 3 embryo transfer, whereas prolactin, androgen, and vitamin D pathways are uninfluenced. These findings echo the known delayed endometrial maturation during ovarian stimulation.
AB - Objective To determine the effects of different hormonal levels on endometrial biochemical development during ovulation induction for assisted reproduction technology (ART) cycles. Design Prospective controlled study. Setting University center. Patient(s) Nine women during a natural cycle (control) and 9 oocyte donors (treated) during an ART cycle. Intervention(s) At the time consistent with day 3 embryo transfer (LH+5 in control, hCG+5 in treated), transvaginal ultrasound, endometrial biopsy, and blood sampling were performed. Real-time reverse-transcription polymerase chain reaction was used to measure mRNA levels for insulin receptor (InsR), type I IGF receptor (IGFRI), prolactin receptor (PRL-R), androgen receptor (AR), TSH receptor (TSHR), nuclear receptors for T3 and T4 (TRα1, TRα2, and TRβ1), iodothyronine deiodinase (DIO2), and 1,25-dihydroxyvitamin D3 receptor (VDR) in the endometrial tissue. Main Outcome Measure(s) Biochemical endometrial development. Result(s) IGFRI mRNA levels were 69% lower in treated patients than in control subjects, 0.12 ± 0.005 pg/μg RNA versus 0.39 ± 0.01 pg/μg RNA. TSHR mRNA was 57% lower, 2.6 ± 0.1 fg/μg RNA versus 6.0 ± 0.2 fg/μg RNA. TRα1 and TRα2 mRNA did not change, but TRβ1 mRNA levels were 63% higher. DIO2 mRNA was 63% lower, 1.2 ± 0.07 pg/μg RNA versus 3.2 ± 0.2 pg/μg RNA. InsR mRNA levels, despite being 68% lower in treated patients, did not reach significance, and PRL-R, AR, and VDR did not significantly change. Conclusion(s) Exposure of the endometrium to ovarian stimulation appears to influence insulin and thyroid hormone signaling pathways in the decidua at day 3 embryo transfer, whereas prolactin, androgen, and vitamin D pathways are uninfluenced. These findings echo the known delayed endometrial maturation during ovarian stimulation.
KW - ART
KW - Endometrium
KW - GnRH-antagonist
KW - deciduas
KW - development
KW - hormone receptors
KW - real time RT-PCR
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U2 - 10.1016/j.fertnstert.2013.05.027
DO - 10.1016/j.fertnstert.2013.05.027
M3 - Article
C2 - 23806847
AN - SCOPUS:84883451797
SN - 0015-0282
VL - 100
SP - 889
EP - 894
JO - Fertility and sterility
JF - Fertility and sterility
IS - 3
ER -