What are the risks of the assisted reproductive technologies (ART) and how can they be minimized?

The potent paracrine effect of umbilical cord mesenchymal stem cells mediates mitochondrial quality control to restore chemotherapy-induced damage in ovarian granulosa cells

The basic principle of chemotherapy is to attack cells with fast growth, and cancer cells are targeted by anticancer drugs because they have a faster growth rate than normal cells. High doses of anticancer drugs may cause an irreversible decline in reproductive capacity, and novel approaches for fertility preservation and/or restoration after anticancer treatment are urgently needed. Here, we provide important insights into the recovery of human reproductive cells damaged by chemotherapy. We performed a detailed screening of the cytokines of various human mesenchymal stem cells (hMSCs) to select superior MSCs. Also, we analyzed the Ovarian granulosa cell (OGC)-)-specific functions for restoring function, apoptosis, and mitochondrial functions to confirm the recovery mechanism in damaged OGCs. As a result, we demonstrated that conditioned media (CM) of Umbilical cord mesenchymal stem cells (UC-MSCs) could restore the functions of damaged OGCs primarily through antiapoptotic and antioxidant effects. Furthermore, CM changed the phenotype of damaged OGCs to an energetic status by restoring mitochondrial function and enhanced the mitochondrial metabolic activity decreased by chemotherapy. Finally, we demonstrated that the restoration of mitochondrial function in damaged OGCs was mediated through mitochondrial autophagy (mitophagy). Our findings offer new insights into the potential of stem cell-based therapy for fertility preservation and/or restoration in female cancer patients.

Informed Consent of Couples in IVF Practices: A Limited Study in Turkey

Objective: The aim of this study is to obtain informed consent in vitro fertilization applications and to determine the factors affecting this process. Methods: This article is a full-text original research article. Descriptive and cross-sectional study was conducted with 193 women and 54 men, undergoing in vitro fertilization treatment. Study form consisted of questions regarding sociodemographic features and informed consent. The form was filled on the day the eggs were collected. The ethical committee approved the protocol of the study and all participants were provided with verbal informed consent. Results: According to result of the study, it was found that more than one third (38.5%) of the participants were not informed verbally, 34.1% of those who were informed could not understand what was told. Those who applied to a private physician were more informed. The explanations were not understood mainly due to the problems arising from informing process. The consent form was given to all participants after starting treatment. Two thirds of the participants read the consent form and 22.7% of them did not understand what they read. Almost half (41.3%) of those who did not read the consent form stated that they consider the reading and signing the form as a procedure for the implementation of the transaction. Those who had time to read the consent form read more (p<0.001) and understood more (p=0.036). Conclusion: In this study, it was concluded that there were problems with the transferring and understanding of information, and that valid consents were not taken from some patients.

Protocol of the Fit-For-Fertility study: a multicentre randomised controlled trial assessing a lifestyle programme targeting women with obesity and infertility

INTRODUCTION

Women with obesity are at a higher risk of infertility as well as gestational and neonatal complications. Lifestyle changes are universally recommended for women with obesity seeking fertility treatments, but such intervention has only been assessed in very few robust studies. This study's objectives are therefore to assess the clinical outcomes and cost-effectiveness of an interdisciplinary lifestyle intervention (the Fit-For-Fertility Programme; FFFP) targeting women with obesity and subfertility in a diverse population.

METHODS AND ANALYSIS

This pragmatic multicentre randomised controlled trial (RCT) will include 616 women with obesity (body mass index ≥30 kg/m² or ≥27 kg/m² with polycystic ovary syndrome or at-risk ethnicities) who are evaluated at a Canadian fertility clinic for subfertility. Women will be randomised either to (1) the FFFP (experimental arm) alone for 6 months, and then in combination with usual care for infertility if not pregnant; or (2) directly to usual fertility care (control arm). Women in the intervention group benefit from the programme up to 18 months or, if pregnant, up to 24 months or the end of the pregnancy (whichever comes first). Women from both groups are evaluated every 6 months for a maximum of 18 months. The primary outcome is live birth rate at 24 months. Secondary outcomes include fertility, pregnancy and neonatal outcomes; lifestyle and anthropometric measures; and cost-effectiveness. Qualitative data collected from focus groups of participants and professionals will also be analysed.

ETHICS AND DISSEMINATION

This research study has been approved by the Research Ethics Board (REB) of Centre intégré universtaire de santé et des services sociaux de l'Estrie-CHUS (research coordinating centre) on 10 December 2018 and has been or will be approved successively by each participating centres' REB. This pragmatic RCT will inform decision-makers on improving care trajectories and policies regarding fertility treatments for women with obesity and subfertility.

TRIAL REGISTRATION NUMBER

NCT03908099.

PROTOCOL VERSION

1.1, 13 April 2019.

Protective placental inflammatory and oxidative stress responses are attenuated in the context of twin pregnancy and chorioamnionitis in assisted reproduction

PURPOSE

Assisted reproduction technologies (ART) are associated with increased risks of pregnancy complications and obstetric interventions. Here, we aimed to determine if ART affects placental inflammation and oxidative stress as a mechanism for unfavorable pregnancy outcomes.

METHODS

The levels of six cytokines (IFN-γ, IL-1β, IL-6, IL-8, IL-10, TNFα) were measured using multiplex ELISA. The activity of four antioxidant enzymes (glutathione S-transferase (GST), glutathione peroxidase (GPx), glutathione reductase, superoxide dismutase) and levels of two antioxidants (GSH, vitamin E) were measured using commercial/in-house assays. Markers were compared between ART and unassisted pregnancies, and then groups were stratified using ICD9/10 codes to determine differences in specific clinical contexts.

RESULTS

In unassisted twin pregnancies, there was a trend of decreased cytokine levels (IL-1β, IL-6, IL-8, TNFα, p < 0.05), but cytokines in ART twins were the same or higher. Additionally, GST and GPx activities were lower in unassisted twins, and vitamin E levels were higher in ART twins (p < 0.05). In pregnancies complicated by chorioamnionitis, there was a trend of increased cytokine levels in unassisted pregnancies (IL-1β, IL-6, and IL-8, p < 0.05). No increase was observed in ART, and IFN-γ and TNFα were decreased (p < 0.05). Placental GST and GPx activities were higher in unassisted pregnancies with chorioamnionitis compared to ART (p < 0.05).

CONCLUSION

Attenuation of protective placental inflammatory and oxidative stress responses may play a role in the underlying pathogenesis of negative birth outcomes in ART, expanding our understanding of adverse pregnancy outcomes when ART is used to conceive.

Knowledge and attitudes about assisted reproductive technology: Findings from a Hungarian online survey

This study aimed to evaluate the general knowledge and attitudes about assisted reproductive technology (ART) and the influence of sociodemographic features on knowledge and attitudes in a large sample of men and women of reproductive age in Hungary. A cross-sectional online survey study was conducted among 1370 men and women between 18 and 50 years of age in Hungary. The questionnaire included questions about self-rated knowledge, an attitude item, and eight questions concerning general knowledge about ART. In addition, participants were asked sociodemographic background questions. The results show that approximately half of the respondents (49.3%) rated themselves as fairly knowledgeable about ART. However, 56% of the respondents answered just three of the eight knowledge questions correctly. Both men and women had limited knowledge about the success rate of ART, the costs of ART and the age limit to access ART. The greatest lack of knowledge about ART was about its risks: the majority of respondents did not know that in-vitro fertilization poses health risks for women and conceived children. Regarding attitudes, the majority of respondents had a very positive attitude towards ART. Only those respondents who were religious were less supportive of ART. These data suggest that men and women of reproductive age overestimate their ART-related knowledge. As most men and women would like to have biological children in Hungary, there is a critical need for public education.

A microwell culture system that allows group culture and is compatible with human single media

PURPOSE

A microwell culture system that facilitates group culture, such as well-of-the-well (WOW), improves embryonic development in an individual culture. We examined the effect of WOW on embryonic development in vitro with commercially available human single culture media.

METHODS

Using four different commercial human single culture media, in vitro development and imprinted gene expression of bovine embryos cultured in WOW were compared to droplet culture (one zygote per drop). To determine the effects of microwell and group culture on embryonic development, different numbers of embryos were cultured in droplet or WOW. Diffusion simulation of accumulating metabolites was conducted using the finite volume method.

RESULTS

WOW had a positive effect on bovine embryonic development, regardless of the type of single culture media. Imprinted gene expression was not different between droplet- and WOW-derived blastocysts. The microwell and group cultures in WOW showed a significant positive effect on the rate of total blastocysts and the rate of development to the expanded and hatching blastocyst stages. The assumed cumulative metabolite concentration of WOW with one embryo was 1.47 times higher than that of droplet culture with one embryo. Furthermore, the concentration of WOW with three embryos was 1.54 times higher than that of WOW with one embryo.

CONCLUSIONS

In using human single culture media, a microwell culture system that allows group culture could be a powerful clinical tool for improving the success of assisted reproductive technologies.