Endometriosis, Infertility Unexplained
Conditions
Keywords
Endometriosis, Unexplained Infertility, Polycyclic aromatic hydrocarbons
Brief summary
The health toxicity of polycyclic aromatic hydrocarbons (PAHs), present in air and food, generated during energy production and waste incineration, is well known. PAHs can activate the aryl hydrocarbon receptor, which may interact with classic estrogen receptors and modify estrogen-dependent inflammation in endometriosis. There is no data on the hypothetical role of PAHs in the etiopathogenesis of endometriosis. The aim was to compare PAHs concentrations in visceral fat in women with endometriosis and idiopathic infertility.
Detailed description
A prospective cohort tertiary-center study includes women undergoing laparoscopy due to pelvic endometriosis (arm 1) or/and idiopathic infertility (arm 2). A sample of 1 ml of the greater omentum is collected intraoperatively for detection of 16 PAHs, i.e. acenaphthene, acenaphthylene, anthracene, fluoranthene, fluorene, naphthalene, phenanthrene, pyrene, benz\[a\]anthracene, benzo\[b\]fluoranthene, benzo\[k\]fluoranthene, benzo\[ghi\]perylene, benzo\[a\]pyrene, chrysene, dibenz\[a,h\]anthracene, and indeno\[1,2,3-cd\]pyrene, by gas chromatography-isotope dilution mass spectrometry method. The concentration of selected PAHs in visceral fat in both populations will be compared. The correlation of concentrations of selected PAHs with the occurrence of infertility, pelvic pain syndrome, intensity of pain, peritoneal adhesions and the degree of endometriosis will be checked.
Interventions
DIAGNOSTIC_TESTDetection of PAHs in visceral fat with gas chromatography-isotope dilution mass spectrometry
1 ml sample of visceral fat collected during elective laparoscopy for detection of PAHS by gas chromatography-isotope dilution mass spectrometry
Sponsors
Jagiellonian University
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Intervention model description
A prospective cohort tertiary-center study among women undergoing elective laparoscopy due to pelvic endometriosis (arm 1) or idiopathic infertility (arm 2).
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No
Inclusion criteria
i) age 18-45, ii) indications for surgical treatment of endometriosis, iii) indications for invasive diagnostics and surgical treatment of idiopathic infertility.
Exclusion criteria
\-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accumulation and detection of PAHs in women's visceral fat. | up to 6 months | Detection and confirmation of the accumulation of PAHs (acenaphthene, acenaphthylene, anthracene, fluoranthene, fluorene, naphthalene, phenanthrene, pyrene, benz\[a\]anthracene, benzo\[b\]fluoranthene, benzo\[k\]fluoranthene, benzo\[ghi\]perylene, benzo\[a\]pyrene, chrysene, dibenz\[a,h\]anthracene, and indeno\[1,2,3-cd\]pyrene) in human adipose tissue by gas chromatography-isotope dilution mass spectrometry method. |
| Comparison of concentrations of 16 reference PAHs in women in both study arms. | up to 6 months | Comparison of concentrations of 16 PAHs (acenaphthene, acenaphthylene, anthracene, fluoranthene, fluorene, naphthalene, phenanthrene, pyrene, benz\[a\]anthracene, benzo\[b\]fluoranthene, benzo\[k\]fluoranthene, benzo\[ghi\]perylene, benzo\[a\]pyrene, chrysene, dibenz\[a,h\]anthracene, and indeno\[1,2,3-cd\]pyrene) in both study arms using standard statistical methods. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Evaluation of PAHs concentrations correlation with endometriosis degree | up to 6 months | Assessment of 16 PAHs concentrations depending on the degree of endometriosis severity using standard statistical methods. |
| Evaluation of PAHs concentrations correlation with the intensity of pelvic pain | up to 6 months | Assessment of 16 PAHs concentrations depending the intensity of pelvic pain in Numeric Rating Scale using standard statistical methods. |
| Evaluation of PAHs concentrations correlation with the presence and severity of peritoneal adhesions | up to 6 months | Assessment of 16 PAHs concentrations depending on the presence and severity of peritoneal adhesions using standard statistical methods. |
Countries
Poland
Outcome results
None listed