Cumulus Cell, GREM1 Gene Mutation, Increased Oocyte Death, in Vitro Maturation
Conditions
Keywords
cumulus cell, GREM 1 gene expression, HAS 2 gene expression, PTGS 2 gene expression, oocyte quality, in vitro maturation
Brief summary
Poor ovarian reserve (POR) is an adverse prognostic factor for In-Vitro Fertilization (IVF) success. Numerous established data showed low live birth rates per IVF cycle; 6 to 10%, including the usage of In-Vitro Maturation (IVM). In Malaysia, POR incidence increases mainly from cancer survival, endometriosis, and autoimmune diseases women; therefore, IVM implementation is paramount. In the molecular level, the low competence oocytes showed a low expression of GREM1, HAS2 and PTGS2 in human cumulus cells, thus leading to poor oocyte quality(OQ). Various IVM media had been formulated to enhance the competency and quality of the oocytes to date. Therefore, our study aims to elucidate the GREM1, HAS2 and PTGS2 gene expression as oocyte developmental competency markers among POR women following IVM and tailored to the IVF outcome.
Detailed description
In this study, we will follow up the normal and POR women. The discarded product - cumulus cell will be used in this study for evaluation following the standard IVF cumulus-oocyte-complex denudation. We will develop the In-Vitro Model to assess the expression of GREM1, HAS2, and PTGS2 in normal and POR women first. Subsequently, these gene expressions will be reassessed again via clinical model using IVF-IVM cumulus cell comparing the both groups to elucidate the modifying of oocytes quality following IVM. The cumulus cell RNA will be extracted,and the cDNA will be synthesized and quantitated. The RT-PCR standard curves will be produced, and the concentration range of these genes will be generated and quantified. The OQ, embryo morphology scoring, fertilization rates, and live birth rates will be recorded and compared. We anticipate a higher gene expression associated with good OQ thus better fertilization and live birth rate. Therefore, this research will understand the impact of IVM in oocytes competency, aiming to improve the fertility rate among POR women in Malaysia.
Interventions
GENETICcumulus cell oocytes complex (COC) among women with poor ovarian reserve
level of expression of Gremlin-1 (GREM1), Hyaluronic acid synthetase-2 (HAS2), and Prostaglandin-endoperoxide synthase-2 (PTGS2) in cumulus cell oocytes complex (COC) among women with poor ovarian reserve were analyzed
Sponsors
National University of Malaysia
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* women underwent IVF with normal and Poor ovarian reserve based on the Bologna criteria( anti-Müllerian hormone (AMH) below 0.5-1.1 ng/ml\]).
Exclusion criteria
* Male factor infertility (to reduce bias for embryo quality factor) * Not agree to participate.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| normal ovarian reserve | for 1 year duration | the regulation of Gremlin-1 (GREM1), Hyaluronic acid synthetase-2 (HAS2), and Prostaglandin-endoperoxide synthase-2 (PTGS2) in normal cumulus cell oocytes complex (COC). |
| poor ovarian reserve | for 1 year duration | the level of expression of Gremlin-1 (GREM1), Hyaluronic acid synthetase-2 (HAS2), and Prostaglandin-endoperoxide synthase-2 (PTGS2) in cumulus cell oocytes complex (COC) among women with poor ovarian reserve |
Countries
Malaysia
Outcome results
None listed