Background: Since the freezing method was offered, much effort has been done to improve the freezing conditions in different studies and the impact of different freezing methods and mediums on oocyte, embryo and ovarian tissues has been examined. Based on studies, minerals play an important role in oocyte maturation and subsequent embryo development. Vanadium is one of the minerals, which is ve...

BACKGROUND In assisted reproductive techniques, 85% retrieved oocytes are mature, and the rest are immature. These immature oocytes may be matured in vitro, and used in subsequent in vitro fertilization program. The purpose of this study was to determine the maturation capacity and morphology of human immature oocytes in both fresh and vitrified-thawed, in vitro matured oocytes with regard to t...

We report a case of right adnexal torsion during pregnancy after an oocyte in vitro maturation and intracitoplasmic sperm injection cycle in patient with polycystic ovary syndrome. A 31-year-old woman with a typical clinical disorder of polycystic ovarian syndrome was included in an oocyte in vitro maturation program. Right adnexal torsion occurred two days after embryo transfer, and laparoscop...

Background: This study intends to present the role of rescue in vitro maturation (IVM) in polycystic ovarian syndrome(PCOS) patients undergoing in vitro fertilization (IVF) treatment who have inappropriate responses to ovarianstimulation.Materials and Methods: This was a retrospective case series study of five PCOS patients undergoing IVF treatmentconsidered for cycle ca...

Background Fertility preservation for female cancer patients prior to cancer therapy has emerged as an essential component of comprehensive patient care. In the US, approximately 6% of women diagnosed with invasive cancer between 2007 and 2011 that were under 45 years old. The incidence of cancers in reproductive age women signifies a need for fertility preservation options and this need is inc...

Annual migration of pests between different seasonal habitats can lead to serious crop damage. Reproductive immaturity is generally associated with the migratory process (oogenesis-flight syndrome), but the mechanism of reproductive development during migration varies unpredictably. Here, the vitellogenin gene (MsVg) and three key regulatory enzyme genes (MsJhamt, MsJheh and MsJhe) related to j...

Background Ovarian tissue cryopreservation represents a promising strategy to preserve the ovarian function in cancer patients. It is usually performed by slow freezing/rapid thawing (SF/RT). Recent studies emphasize an ultrarapid cryopreservation procedure, vitrification/warming (V/W), since it might prevent damages due to ice crystal formation. Comparative studies between the cryopreservation...

Background Ovarian tissue cryopreservation represents a promising strategy to preserve the ovarian function in cancer patients. It is usually performed by slow freezing/rapid thawing (SF/RT). Recent studies emphasize an ultrarapid cryopreservation procedure, vitrification/warming (V/W), since it might prevent damages due to ice crystal formation. Comparative studies between the cryopreservation...

To effects of sex maturation in olive flounder by regulating long photoperiod, gonadal development and GTH mRNA expression in the pituitary were investigated. Photoperiod was treated natural photoperiod and long photoperiod (15L:9D) conditions from September 2011 to March 2012. The results showed that natural photoperiodic group showed a higher gonadosomatic index (GSI) than long photoperiodic ...

The aim of the study was to determine a combination of anthropometric variables that would enable better differentiation between benign and malignant ovarian masses. Prospective study has been performed in a two year period in which 208 women with ovarian lesions were analyzed and correlated with histopathologic surgical findings. We examined the relation between self-reported anthropometric an...