Validation of ART Calculator for Predicting the Number of Metaphase II Oocytes Required for Obtaining at Least One Euploid Blastocyst for Transfer in Couples Undergoing in vitro Fertilization/Intracytoplasmic Sperm Injection

This multicenter study evaluated the reliability of the recently published ART calculator for predicting the minimum number of metaphase II (MII) oocytes (MIImin) to obtain at least one euploid blastocyst in patients undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). We used clinical and embryonic retrospective data of 1,464 consecutive infertile couples who underwent IVF/ICSI with the intention to have preimplantation genetic testing for aneuploidy. The validation procedure followed a stepwise approach. Firstly, we assessed the distribution of euploid blastocysts per patient and found that it followed a negative binomial distribution. Secondly, we used generalized linear models and applied the Lasso procedure–including MII oocytes to adjust the data–to select the factors predicting the response variable “euploid blastocyst.” Third, a logistic regression model–fit to the binomial response euploid (yes/no) for each MII oocyte–was built using the relevant factors. The observational unit was the “woman” whereas the response was the pair (m, n), where n is the number of retrieved MII oocytes and m the corresponding number of euploid blastocysts. The model was internally validated by randomly splitting the data into training and validation sets. The R-squares (~0.25) and the area under the ROC curve (~0.70) did not differ between the training and validation datasets. Fourth, mathematical equations and the ...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research

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Purpose of review An update on the latest advances in fertility preservation for transgender women, with an emphasis on the attitudes, access, and techniques. Recent findings With recent warming in perception toward transgendered individuals, fertility preservation services are becoming increasingly available. Although new multidisciplinary transgender clinics are appearing in North America, a 2018 report shows a referral rate for fertility preservation of only 13.5%. Despite interest in child rearing, uptake of fertility preservation is still low as patients are transitioning at increasingly younger ages. Sperm cryop...
Source: Current Opinion in Urology - Category: Urology & Nephrology Tags: GENDER MEDICINE, INFERTILITY AND ERECTILE FUNCTION: Edited by Ryan Flannigan and Ranjith Ramasamy Source Type: research
ConclusionOur simple evidence-based nomogram presents graphically risk factors and prognostic models for IVF/ICSI outcomes in patients with PCOS, which can offer useful guidance to clinicians and patients for individual adjuvant therapy.
Source: Journal of Endocrinological Investigation - Category: Endocrinology Source Type: research
rua J Abstract Assisted reproductive technologies involving the use of spermatozoa and eggs for in vitro fertilization (IVF) have come as the solution for many infertile couples to become parents. However, in some cases, the use of ejaculated spermatozoa delivers poor IVF performance. Some studies have suggested the use of testicular spermatozoa in severe male infertility cases, but no guidelines regarding their utilization are currently available. In the present study, we found the mRNA protamine 1/protamine 2 (P1/P2) ratio to be a valuable biomarker of poor sperm function that could be used as a diagnostic key f...
Source: Asian Journal of Andrology - Category: Urology & Nephrology Authors: Tags: Asian J Androl Source Type: research
Conclusion: It is mandatory to point out that our conclusions are valid for patients with ovarian advanced endometriosis but normal ovarian functions. These results suggest three different progestins protocols are equivalent in terms of pregnancy outcomes for women with advanced endometriosis. PPOS protocol can be an alternative choice for women with severe endometriosis and normal ovarian reserve in IVF/ICSI treatment. These methods could be tested with other populations of women with endometriosis.Clinical Trial, identifier:ChiCTR-OIN-16008529.Trial registration date: 2014-05-25.Date o...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
This study aimed to determine whether fertilization can be obtained by assisted fusion of oocyte and sperm without breaking the oocyte membrane. A total of 79 infertile couples, each with at least one unfertilized oocyte after in vitro fertilization (IVF), were recruited. Sperm collected from the zona pellucida (ZP) were pressed onto the membrane of unfertilized oocytes at either 6  h or 24 h after IVF, a procedure that we designated as assisted sperm fusion insemination (ASFI). The results of ASFI were compared with those obtained in a previous trial on oocytes in which rescue intracytoplasmic sperm injection (I...
Source: Human Cell - Category: Cytology Source Type: research
ConclusionWe identified novelDNAAF6 variants causing male infertility and PCD in Han Chinese patients. This finding extended the spectrum of variants inDNAAF6 and revealed new light on the impact ofDNAAF6 variants in sperm flagella.
Source: Journal of Assisted Reproduction and Genetics - Category: Reproduction Medicine Source Type: research
ConclusionOur study confirmed the essential role of PLCZ1 in fertilization and male fertility, which indicated the potential prognostic value of testing forPLCZ1 mutations in primary infertile men with sperm-derived fertilization failure.
Source: Journal of Assisted Reproduction and Genetics - Category: Reproduction Medicine Source Type: research
PMID: 32167076 [PubMed - as supplied by publisher]
Source: Asian Journal of Andrology - Category: Urology & Nephrology Authors: Tags: Asian J Androl Source Type: research
Conditions:   Infertility;   Recurrent Implantation Failure;   Recurrent Miscarriage Intervention:   Sponsor:   Peking University Third Hospital Not yet recruiting
Source: - Category: Research Source Type: clinical trials
To investigate the impact of a history of previous naturally conceived tubal ectopic pregnancy (TEP) on subsequent IVF/intracytoplasmic sperm injection (ICSI) pregnancy and perinatal outcomes.
Source: Fertility and Sterility - Category: Reproduction Medicine Authors: Tags: Original article Source Type: research
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