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Does Overnight Culture of Cleaved Embryos Improve Pregnancy Rate in Vitrified-Warmed Embryo Transfer Programme?

Agha-Rahimi A, Omidi M, Akyash F, Faramarzi A, Farshchi FA

Malays J Med Sci, 2019 Mar;26(2):52-58.
PMID: 31447608 DOI: 10.21315/mjms2019.26.2.6

Background: Vitrification is a routine procedure in assisted reproductive technique (ART) lab. However, there is widespread variability between protocols of different centres. The aim of this study was to compare the chemical pregnancy, clinical pregnancy and live birth rates between one-day embryo culture and immediate transfer for frozen-thawed embryo transfer (FET) cycles.
Methods: In this cohort retrospective study, 366 FET cycles were divided into two groups: Group A, the embryos were warmed one day before transfer, and were cultured overnight; Group B, the embryos were warmed on the same day of transfer, at least were cultured 1 h before embryo transfer (ET). Chemical and clinical pregnancy and live birth rates were compared between two groups.
Results: The chemical pregnancy was higher in group A than B (37.9% versus 28.9%), but this difference was not significant (P = 0.07). Clinical pregnancy (30.8% versus 24.1%) and live birth (19.8% versus 22.05%) were similar in group A and B, (P = 0.15), and (P = 0.8). Conclusion: In conclusion, overnight culture and confirmation of mitosis resumption was not essential for FET cycles in vitrification method.

Matched MeSH terms: Reproductive Techniques, Assisted
Higher β-HCG concentrations and higher birthweights ensue from single vitrified embryo transfers

Keane KN, Mustafa KB, Hinchliffe P, Conceicao J, Yovich JL

Reprod Biomed Online, 2016 Aug;33(2):149-60.
PMID: 27209497 DOI: 10.1016/j.rbmo.2016.04.014

To examine the effect of cryopreservation on developmental potential of human embryos, this study compared quantitative β-HCG concentrations at pregnancy test after IVF-fresh embryo transfer (IVF-ET) with those arising after frozen embryo transfer (FET). It also tracked outcomes of singleton pregnancies resulting from single-embryo transfers that resulted in singleton live births (n = 869; with 417 derived from IVF-ET and 452 from FET). The initial serum β-HCG concentration indicating successful implantation was measured along with the birthweight of the ensuing infants. With testing at equivalent luteal phase lengths, the median pregnancy test β-HCG was significantly higher following FET compared with fresh IVF-ET (844.5 IU/l versus 369 IU/l; P < 0.001). Despite no significant difference in the average period of gestation (38 weeks 5 days for both groups), the mean birthweight of infants born following FET was significantly heavier by 161 g (3370 g versus 3209 g; P < 0.001). Furthermore, more infants exceeded 4000 g (P < 0.001) for FET although there was no significant difference for the macrosomic category (≥4500 g). We concluded that FET programme embryos lead to infants with equivalent (if not better) developmental potential compared with IVF-ET, demonstrated by higher pregnancy β-HCG concentrations and ensuing birthweights.

Matched MeSH terms: Reproductive Techniques, Assisted*
A survey of scientists' awareness of and attitudes to the use of human blood products and alternatives in human assisted reproductive technology

Peirce K, Roberts P, Ali J, Coombes J, Matson P

Hum Fertil (Camb), 2018 Sep;21(3):174-182.
PMID: 28589740 DOI: 10.1080/14647273.2017.1334131

Scientists working in assisted reproduction [members of Scientists in Reproductive Technology (SIRT) Australia, and subscribers of the online forums EmbryoMail and Quartec] were invited to complete an online questionnaire on the use of human blood products in assisted reproductive technologies (ART). A total of 260 started the questionnaire, with 208 (80%) completing it. A total of 62% of respondents had worked in human ART ≥8 years and 68% had post-graduate qualifications. The majority (82%) reported using products of animal or human origin, with 75% knowing why protein was added to culture media and 41% not worried by this. Almost half (49%) of respondents were unaware of regulations surrounding the use of human blood products in health care and 70% were unaware of adverse events involving human blood products in human ART. Most respondents (70%) indicated that they were not concerned about infections such as hepatitis, but agents such as prions were a cause for concern (57%). A total of 57% of respondents were unaware of alternatives, but 77% would use a suitable alternative. Using blood products in human ART is surrounded by a lack of awareness, often independent of respondents' qualifications or experience. A better understanding of these products and possible alternatives is required if informed decisions about their suitability are to be made.

Matched MeSH terms: Reproductive Techniques, Assisted/adverse effects*; Reproductive Techniques, Assisted/standards
Fulltext Repeated Evaluations of Testes and Semen Characteristics in Two Binturongs (Arctictis binturong)

Zainuddin ZZ, Sipangkui S, Farqhan Kelana M, Chee YK, Tarmizi MRM, Comizzoli P

Front Vet Sci, 2021;8:658573.
PMID: 33778042 DOI: 10.3389/fvets.2021.658573

The binturong is a medium size carnivore belonging to the Viverrid family that lives in dense forests of South-East Asia. In addition to the protection of this vulnerable species in its natural habitat (in situ), conservation breeding efforts (ex situ) aim at maintaining a good genetic diversity while increasing the number of individuals to reinforce wild populations. Both approaches require a solid understanding of binturong's basic biology. However, there is still a lack of precise information about reproduction. The objective of this brief research report was to analyze testicular sizes and semen characteristics at different times of the year to better understand the reproductive physiology and inform future conservation efforts. A secondary objective was to describe sperm cryotolerance for the first time in that species. Examinations of testes and semen collections were conducted on two adult males. While testicular measurements were relatively constant across multiple examinations, semen characteristics (volume, viability, sperm concentrations, sperm motility) varied between samples. However, incidence of sperm morphological abnormalities was consistently high. Sperm cryotolerance appeared to be poor but further studies are warranted. The present dataset will be useful for future research on binturong reproduction and for the development of assisted reproductive techniques and biobanking of germplasms in that species.

Matched MeSH terms: Reproductive Techniques, Assisted
Fulltext Coenzyme Q10, oxidative stress, and male infertility: A review

Alahmar AT, Calogero AE, Singh R, Cannarella R, Sengupta P, Dutta S

Clin Exp Reprod Med, 2021 Jun;48(2):97-104.
PMID: 34078005 DOI: 10.5653/cerm.2020.04175

Male infertility has a complex etiopathology, which mostly remains elusive. Although research has claimed that oxidative stress (OS) is the most likely underlying mechanism of idiopathic male infertility, the specific treatment of OS-mediated male infertility requires further investigation. Coenzyme Q10 (CoQ10), a vitamin-like substance, has been found in measurable levels in human semen. It exhibits essential metabolic and antioxidant functions, as well as playing a vital role in mitochondrial bioenergetics. Thus, CoQ10 may be a key player in the maintenance of biological redox balance. CoQ10 concentrations in seminal plasma directly correlate with semen parameters, especially sperm count and sperm motility. Seminal CoQ10 concentrations have been shown to be altered in various male infertility states, such as varicocele, asthenozoospermia, and medical or surgical regimens used to treat male infertility. These observations imply that CoQ10 plays an important physiological role in the maintenance and amelioration of semen quality. The present article thereby aimed to review the possible mechanisms through which CoQ10 plays a role in the regulation of male reproductive function, and to concisely discuss its efficacy as an ameliorative agent in restoring semen parameters in male infertility, as well as its impact on OS markers, sperm DNA fragmentation, pregnancy, and assisted reproductive technology outcomes.

Matched MeSH terms: Reproductive Techniques, Assisted
Fulltext Vitrification of Blastocyst Murine embryos affects PI3K pathway by modulating the expression of XIAP and S6K1 proteins

Mohd Fazirul, M., Sharaniza, A.R., Norhazlin, J.M.Y., Wan Hafizah, W.J., Razif, D., Froemming, G.R.A., et al.

Pertanika Journal of Science & Technology, 2017;25(108):187-198.
MyJurnal

Cryopreservation by vitrification has been widely used in Assisted Reproductive Technology (ART) to preserve embryos for an extended period of time. However, the effect of vitrification on development of the embryos is lacking. Therefore, understanding on vitrification effects on embryonic proteins, especially those involved in preimplantation development is crucial to provide high quality embryos for further usage. In this study, XIAP and S6K1 protein expressions following vitrification was investigated, since they have been implicated in diverse cellular processes including cell growth, migration, proliferation, differentiation, survival and development of preimplantation embryos via the PI3K pathway. Embryos were obtained from superovulated female ICR mice which were mated with fertile males. The embryos were harvested at the 2-cell stage and cultured until blastocyst stage. Blastocysts were then vitrified in ESF40 cryoprotectant. Western blot was carried out to determine the expression of XIAP and S6K1 proteins. The results showed the expression of XIAP and S6K1 significantly decreased in vitrified blastocyst compared to the control. This indicates that blastocyst vitrification may impact developmental competence through the activation of apoptotic pathways.

Matched MeSH terms: Reproductive Techniques, Assisted
Substantial Effect of Fenugreek Seeds Aqueous Extract on Serum Estradiol Level in Ovarian Hyperstimulation Syndrome Rat Model

Ben Hameid AS, Al-Sindi TA, Allow AK, Nafie EM, Alahmad BE, Faisal GG

Oman Med J, 2019 May;34(3):238-243.
PMID: 31110632 DOI: 10.5001/omj.2019.45

Objectives: Estradiol (E2) plays an important role in the pathophysiology of ovarian hyperstimulation syndrome (OHSS). This study aimed to evaluate the effect of fenugreek seed aqueous (FSA) extract on serum E2 levels in a rat model of OHSS.
Methods: A total of 34 female Sprague Dawley rats, aged 18 days old, weighing 40 to 45 g, were randomly divided into negative control, positive control, and treatment groups. A daily dose of 1500 mg/kg per body weight of FSA extract was administrated orally to rats in the treatment group for 13 days. On day eight of the study, OHSS was induced in both positive control and treated groups by subcutaneous injection of pregnant mare's serum gonadotropin 50 IU for four consecutive days, followed by human chorionic gonadotropin 25 IU on the fifth day. The effect of FSA extract was evaluated by measuring the concentration of serum E2 using the enzyme-linked immunosorbent assay.
Results: FSA extract reduced serum E2 level significantly in the treated OHSS model (p-value < 0.050) compared to the positive control group.
Conclusions: The finding has important implications on the development of female infertility adjuvant drugs for safe assisted reproduction technology cycles in terms of OHSS prevention.

Matched MeSH terms: Reproductive Techniques, Assisted
A mother with variant Turner syndrome and two daughters with trisomy X: a case report

Ramachandram S, Keng WT, Ariffin R, Ganesan V

J Genet, 2013;92(2):313-6.
PMID: 23970090
Matched MeSH terms: Reproductive Techniques, Assisted
Reactive oxygen species-induced alterations in H19-Igf2 methylation patterns, seminal plasma metabolites, and semen quality

Darbandi M, Darbandi S, Agarwal A, Baskaran S, Dutta S, Sengupta P, et al.

J Assist Reprod Genet, 2019 Feb;36(2):241-253.
PMID: 30382470 DOI: 10.1007/s10815-018-1350-y

PURPOSE: This study was conducted in order to investigate the effects of reactive oxygen species (ROS) levels on the seminal plasma (SP) metabolite milieu and sperm dysfunction.
METHODS: Semen specimens of 151 normozoospermic men were analyzed for ROS by chemiluminescence and classified according to seminal ROS levels [in relative light units (RLU)/s/106 sperm]: group 1 (n = 39): low (ROS

Matched MeSH terms: Reproductive Techniques, Assisted
A pilot study to determine whether progestogen supplementation using dydrogesterone during the first trimester will reduce the incidence of gestational hypertension in primigravidae

Zainul Rashid MR, Lim JF, Nawawi NH, Luqman M, Zolkeplai MF, Rangkuty HS, et al.

Gynecol Endocrinol, 2014 Mar;30(3):217-20.
PMID: 24552449 DOI: 10.3109/09513590.2013.860960

Gestational hypertension (GH) remains one of the main causes of high maternal and perinatal morbidity and mortality worldwide with the highest incidence among primigravidae of about 10%-15%. However, it was noted that the incidence of GH in primigravidae who conceived following assisted reproductive technique (ART) or intrauterine insemination (IUI) supplemented with dydrogesterone during the first trimester was low.

Study site: Obstetrics and Gynecology
Department, Pusat Perubatan Universiti Kebangsaan Malaysia PPUKM

Matched MeSH terms: Reproductive Techniques, Assisted