Objective: To investigate whether gamete intrafallopian transfer (GIFT) may be a cost-effective alternative to donor oocyte procedures in women 40 and older with good ovarian reserve.
Study Design: Retrospective review of records at an infertility clinic in a large multispecialty group practice. Twenty two consecutive women aged 40 and older underwent 24 stimulation cycles for laparoscopic GIFT procedures from 1988 to 1997.
Results: The mean GIFT cycle cost was $5,731. The delivery rate per stimulation cycle was 25.0%. The patients who gave birth were 40-42 years of age. The mean cost per delivered infant was $22,924. A previously reported value for mean cost per pregnancy for donor oocyte in vitro fertilization (IVF) was $30,457. Theoretical costs per delivery, generated from Society for Assisted Reproductive Technology outcome data for anonymous donor oocyte IVF in 1994 (delivery rate per transfer, 34.4%) for $8,000, $9,000 and $10,000 cycle costs were $23,256, $26,163 and $29,070, respectively.
Conclusion: In women with good ovarian reserve, GIFT may be a cost-effective alternative to donor oocyte IVF at age 40-42.
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Anim Reprod
January 2025
Faculdade de Zootecnia e Engenharia de Alimentos - FZEA, Universidade de São Paulo - USP, Pirassununga, SP, Brasil.
Somatic cell nuclear transfer (SCNT), or cloning, is used to reprogram cells and generate genetically identical embryos and animals. However, the cloning process is inefficient, limiting its application to producing valuable animals. In swine, cloning is mainly utilized to produce genetically modified animals.
View Article and Find Full Text PDFGynecol Obstet Invest
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Background Endometriosis-related infertility and its treatment with assisted reproductive technologies (ART) have been broadly researched. Yet, underlying mechanisms of infertility, particularly in the absence of tubal dysfunction, remain unclear. While the impact of inflammatory milieu on the ovary and/or endometrium has been indicated as a contributing factor, recent evidence from euploid transfers and donor cycles questions the extent of these effects.
View Article and Find Full Text PDFFertil Steril
January 2025
Department of Health Behavior and Biological Sciences, School of Nursing, University of Michigan, Ann Arbor, Michigan.
Objective: To expand knowledge on physical outcomes and psychosocial experiences of oocyte donors after donation across 3 age cohorts.
Design: Cross-sectional mixed-methods survey.
Patients: A total of 363 participants (ages: 22-71 years, M = 38.
Vet Res
January 2025
UVSQ, INRAE, BREED, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
Misfolding of the cellular PrP (PrP) protein causes prion disease, leading to neurodegenerative disorders in numerous mammalian species, including goats. A lack of PrP induces complete resistance to prion disease. The aim of this work was to engineer Alpine goats carrying knockout (KO) alleles of PRNP, the PrP-encoding gene, using CRISPR/Cas9-ribonucleoproteins and single-stranded donor oligonucleotides.
View Article and Find Full Text PDFMamm Genome
January 2025
CNRS, INSERM, CELPHEDIA, Institut Clinique de la Souris (ICS), Université de Strasbourg, Illkirch, PHENOMIN, France.
Genome editing, in particular the CRISPR/Cas9 system, is widely used to generate new animal models. However, the generation of mutations, such as conditional knock-out or knock-in, can remain complex and inefficient, in particular because of the difficulty to deliver the donor DNA (single or double stranded) into the nucleus of fertilized oocytes. The use of recombinant adeno-associated viruses (rAAV) as donor DNA is a rapidly developing approach that promises to improve the efficiency of creation of animal models.
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