Two Small RNA Molecules Can Help Diagnose Endometriosis, Study Shows

Two Small RNA Molecules Can Help Diagnose Endometriosis, Study Shows
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Researchers have shown that two biomarkers initially described by researchers at the Yale School of Medicine are found in increased levels in patients with surgically confirmed endometriosis when compared with patients who have other benign gynecologic conditions.

For the first time, these biomarkers, which consist of two small RNA molecules called miRNA-125b and miRNA-150, were able to pre-operatively distinguish patients with endometriosis from those in which the disease was suspected but not medically confirmed.

These results will be discussed in an oral presentation titled, “Serum micrornas used to diagnose endometriosis prior to surgical diagnosis: a prospective study,” at the 2017 American Society of Reproductive Medicine (ASRM) Scientific Congress and Expo, held Oct. 28 to Nov. 1 in San Antonio, Texas.

The abstract of the study was published in Fertility and Sterility, and the research was awarded the Endometriosis Special Interest Group Prize Paper by the ASRM Scientific Program Committee.

“Diagnostic biomarkers for endometriosis have the potential to dramatically reduce the time from the onset of symptoms to effective diagnosis and management,” Dr. Hugh Taylor, chair of obstetrics, gynecology, and reproductive sciences at the Yale School of Medicine and founder and chief medical officer of DotLab, said in a press release. “These biomarkers could be used to not only identify patients requiring medical or surgical treatment, but also to monitor treatment response and recurrence of the disease.”

The study included 40 women at reproductive age who were indicated for surgery due to benign gynecologic indications. The patients were stratified into endometriosis or control groups according to the results of the surgery, which confirmed or discarded the presence of endometriosis.

The researchers evaluated the levels of the small RNA molecules miRNA-125b and miRNA-150 in both groups of patients. This analysis revealed that patients with endometriosis had 1.5 times higher levels of miRNA-125b, and 23.7 times more miRNA-150 than women in the control group.

Four patients in the study complained of pelvic pain and were suspected of having endometriosis. However, during laparoscopic surgery, no signs of endometriosis were reported. Researchers found that the levels of miRNA-125b and miRNA-150 in these four patients were consistent with those found in the control group. This finding further supports the diagnostic potential of these biomarkers for endometriosis.

The oral presentation at ASRM will include data from more patients and biomarkers than were disclosed in the abstract of the study.

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