The attitudes of 234 anonymous couples undergoing in vitro fertilization toward sperm and oocyte donation were explored by questionnaire. All the questionnaires were returned of which 222 (95%) were complete and analysed. A high proportion of couples found the use of donor sperm acceptable for therapeutic, diagnostic and treatment purposes (77%, 90% and 97% respectively) and 72%, 84% and 90% respectively were willing to donate oocytes for these purposes. Of potential oocyte donors 41% would agree to nonanonymous donation, 12% would wish to meet the recipient couple and although only 4% wanted to choose the recipient, a quarter of the couples would prefer a relative or friend as the recipient. Provision of nonidentifying information about the donor to the recipient couple was acceptable to almost 70% whereas 40% found giving the same information to the child acceptable.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1471-0528.1991.tb13424.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Modulation of surface phonon polaritons in MoO via dynamic doping of SiC substrate.
Nanophotonics
January 2025
Departamento de Ingeniería Electrónica, E.T.S.I. de Telecomunicación, Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM), Universidad Politécnica de Madrid, Madrid, 28040 Spain.
Polar biaxial crystals with extreme anisotropy hold promise for the spatial control and the manipulation of polaritons, as they can undergo topological transitions. However, taking advantage of these unique properties for nanophotonic devices requires to find mechanisms to modulate dynamically the material response. Here, we present a study on the propagation of surface phonon polaritons (SPhPs) in a photonic architecture based on a thin layer of α-MoO deposited on a semiconducting 4H-SiC substrate, whose carrier density can be tuned through photoinduction.
View Article and Find Full Text PDFAssociation between sperm DNA fragmentation index and recurrent pregnancy loss: results from 1485 participants undergoing fertility evaluation.
Front Endocrinol (Lausanne)
January 2025
Department of Reproductive Medicine, Nanyang Central Hospital, Nanyang, China.
Objective: Several male factors have been reported to play a role in recurrent pregnancy loss (RPL). The aim of this study is to explore the relationship between semen parameters, sperm DNA fragmentation index (DFI) and RPL.
Method: A total of 1485 participants were recruited from a university hospital between April 2020 and August 2022.
Family planning and preimplantation testing: family experiences in congenital adrenal hyperplasia.
Front Endocrinol (Lausanne)
January 2025
Department of Endocrinology, Sydney Children's Hospital, Randwick, NSW, Australia.
Introduction: Pre-implantation testing (PGT) is often suggested by healthcare professionals (HCP) to parents of children with congenital adrenal hyperplasia (CAH) considering subsequent children. Despite this, some families choose to conceive naturally without genetic testing and intervention. The aims of this study were to explore fertility choices of couples with a child with CAH and the decision making process and perceptions behind these choices, and to explore the families' lived experiences with CAH and the couples' subsequent fertility journey.
View Article and Find Full Text PDFCapturing Conformational Transitions of Fluorescently-Coupled Polyelectrolyte Brushes with High Spatiotemporal Resolution.
Small
January 2025
Leibniz-Institut für Polymerforschung e. V, Hohe Str. 6, 01069, Dresden, Germany.
Polyelectrolyte brushes (PEBs) undergo conformational transitions due to changes in pH and/or ionic strength, which is leveraged as smart surfaces and on-demand drug-release systems. However, probing conformational transitions of functional PEBs has remained challenging due to low spatiotemporal resolution of characterization methods. Herein, fluorescently-coupled PEBs are devised that give rise to Förster Resonance Energy Transfer (FRET) intrinsically coupled to conformational transitions of chains.
View Article and Find Full Text PDFHormetic response to pesticides in diapausing bees.
Biol Lett
January 2025
Department of Entomology, Pennsylvania State University, University Park, PA, USA.
Pollinators face declines and diversity loss associated with multiple stressors, particularly pesticides. Most pollination services are provided by annual bees that undergo winter diapause, and many common pesticides are highly soluble in water and move through soil and plants where bees hibernate and feed, yet the effects of pesticides on pollinators' diapause survival and performance are poorly understood. Pesticides may have complex effects in bees, and some were shown to induce hormetic effects on various traits characterized by high-dose inhibition coupled with low-dose stimulation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!