Ovarian tissue cryopreservation (OTC) is a new approach on fertility preservation for young female patients with cancer. It is now used by many IVF centers in the world. However, this is the first study which OTC by vitrification is carried on and assessed the effectiveness of the technique.
Ovaries from all less than 45 year-old breast cancer patients who undergo oophorectomy by laparoscopy after treated with chemotherapy will be enrolled to the study. Pieces of cortex of each patient will divide into two groups. Group 1 is fresh fragments (control group) and group 2 is vitrified group. Ovarian tissues in group 2 will be vitrified or warmed with medium and devices of Ova-kit type M (Kitazato, Japan). Cortex fragments of each group will have: * Follicle survival evaluation by Neutral red staining * Histological evaluation by Hematoxylin and Eosin staining * Evaluation relative Growth Differentiation Factor 9 (GDF-9) and Caspase-3 gene expression by real-time Polymerase chain reaction (PCR). Comparison of data collected from 2 groups will be carried on to evaluate the effectiveness of the technique before applying this technique for cancer patients in Vietnam.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
43
there are 3 types of experiments in each group, including Follicle survival evaluation by Neutral red staining, Histological evaluation by Hematoxylin and Eosin staining, 2.4. Evaluation GDF-9 and Caspase-3 gene expression by real-time PCR.
My Duc Hospital
Ho Chi Minh City, Vietnam
Rate of Survivable follicle
Percentage of survivable follicles per counted follicles in one fragment
Time frame: After 4 hours stained by Neutral red
Rate of Healthy follicle by histological analysis
Healthy follicles of primordial, primary, secondary follicles will be counted in one slide
Time frame: Immediately after tissue stained by Hematoxylin and Eosin
The relative expression ratio ( R ) of genes in follicles
Follicles in ovarian tissue will be collected, complementary deoxyribonucleic acid (cDNA) synthesis after messenger ribonucleic acid (mRNA) purification, relative quantification PCR for detecting gene expression
Time frame: Immediately after the intervention
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