OBJECTIVE The aim of this study was to investigate whether polycystic ovary syndrome (PCOS) phenotype without polycystic ovaries (PCO) differs in terms of in vitro fertilization (IVF) outcomes compared with classic phenotypes. MATERIALS AND METHODS This retrospective controlled study included 262 patients who underwent IVF treatment with an indication of unexplained or tubal factor infertilit...

The ultimate challenge for all in vitro fertilisation (IVF) clinics is to develop the ability to select for transfer the best single embryo first, from the patient’s cohort of embryos, thereby maximising the chance of pregnancy while the incidence of multiple pregnancies is kept to a minimum and fewer transfer cycles are required. This ambition has driven extensive research and development into...

The ultimate challenge for all in vitro fertilisation (IVF) clinics is to develop the ability to select for transfer the best single embryo first, from the patient’s cohort of embryos, thereby maximising the chance of pregnancy while the incidence of multiple pregnancies is kept to a minimum and fewer transfer cycles are required. This ambition has driven extensive research and development into...

This study involves in vitro androgenesis of Zea mays L. via anther culture. In the first experiment, three embryo induction media were tested in ETH-M82 genotype of maize. The results showed that the embryo structures were established 2 to 3 weeks after culturing the anthers. The effect of induction medium was signifi­cant for embryo frequencies. The obtained results confirm that the induction...

Tissue clearing methods combined with confocal microscopy have been widely used for studying developmental biology. In plants, ClearSee is a reliable method that applicable to wide range of tissues and suitable gene expression analysis using fluorescent reporters, but its application the Arabidopsis thaliana embryo, model system study morphogenesis pattern formation, has not described in origin...

1. Thermodynamic Relations and Poisson Statistics The thermodynamically guided tailoring of surface morphologies aims at depressing the heterogeneous ice nucleation rate by unfavorable thermodynamic conditions stemming from the surface/droplet interaction. The theoretical framework for this surface morphology tailoring can be established by invoking the use of the classical heterogeneous nuclea...

BACKGROUND Pre-antral and early antral follicles secrete Müllerian inhibiting substance (MIS), suggesting that MIS may directly reflect ovarian reserve. Since little is known about how ovarian reserve affects oocyte quality, we attempt here to assess the predictive value of MIS on embryo morphology and IVF outcome. To do so, we measured MIS at the time of HCG administration 36 h prior to oocyte...

BACKGROUND The aim of our retrospective study was to compare the clinical usefulness of two non-invasive embryo scoring systems based either on a simplified pronuclear morphology of the zygote or on early cleavage rate, as well as their combination, for the selection of embryos with the best implantation potential in embryo transfer (ET). METHODS Over a period of five years, the quality of 27...

2Fertility Clinic, Vilnius, Lithuania Human leukocyte antigen G (HLA-G) is a non-classical HLA class I molecule which can be expressed in the membrane-bound or soluble form and is well known for its tolerogenic properties. Increasing interest is now being addressed to the soluble forms, because they might have prognostic properties in the implantation and pregnancy process. The aim of our study...