Fertility is a fundamental function of reproductive health that is under the control of different hormones, cytokines, and growth factors. Transforming growth factor superfamily is a group of cytokines necessary for blastocyst implantation as they regulate endometrial stromal cell proliferation, and promote embryonic adherence to the receptive endometrium. Hyaluronic acid molecule (HA) is a long, unbranched polysaccharide that plays a delicate function in reproduction. Hyaluronic acid regulates gametogenesis, folliculogenesisi, and implantation, thereby was oroposed to improve the rate of successful pregnancy.This study is a prospective clinical trial that includes 80 infertile Iraqi women aged (18-40 years) scheduled for fresh ICSI program. The study sample had been divided into 2 groups based on the type of intervention performed on the day of oocytes retrieval. The Hyaluronic acid group and the control group. For each participant, twice measurement of the serum level of transforming growth factor were done , the first measure was done on day of oocytes retrieval, while the second measure was performed on day of embryo transfer. A comparative statistic was made to examine the effect of hyaluronic acid intrauterine wash on the serum level of transforming growth factor and pregnancy rate.Hyaluronic acid intrauterine wash exerts a significant reduction in transforming growth factor serum level, and a significant improvement in the pregnancy outcome compared to the control group.
Hyaluronic acid (HA) is an anionic, non-sulfated glycosaminoglycan distributed widely throughout connective, epithelial, and neural tissues. The study included 40 infertile females. A full history taking, complete general examination, complete gynecological examination, and infertility workup including basal hormonal analysis, and uterine cavity assessment by ultrasound and tubal patency evaluation by hysterosalpingogram was done in addition to husband’s seminal fluid analysis. The control group did not receive any ovarian stimulation drugs, while the 2 nd group was treated with letrozole + gonadotropin. The ovarian stimulation protocol was chosen for each patient according to her age, history, and hormonal assay. Evaluation of thickness and pattern of the endometrium, size, and the number of mature follicles was performed by transvaginal ultrasonography on the 2 nd day of the menstrual cycle and cycle day 11-14 before hCG injection. The study showed no correlation between HA and LH at triggering day in women who received letrozole plus Gonadotropin but a positive correlation was documented between HA concentration and E 2 in addition to a positive correlation with progesterone, the number of follicles, and endometrial thickness at the day of triggering of ovulation. The study revealed that mean hyaluronic acid concentration was elevated significantly (P<0.05) in pregnant women after stimulation protocol compared with nonpregnant (164.2 vs. 152.1 pg/ml). HA was significantly higher in women who undergo ovarian stimulation with letrozole which was a good protocol in the treatment of women with ovulatory problems.