Men can safely undergo one round of chemotherapy or radiotherapy for early-stage testicular germ-cell cancer without any negative impact on sperm quality, a new study has found.
Two new studies suggest that a form of CRISPR base editing is more error-prone than previously thought.
Last month, the draft statutory guidance on sex education (now known as Relationship and Sex Education (RSE) and health education for governing bodies, proprietors, head teachers, principals, senior leadership teams and teachers) was presented to UK government for debate.
vOIL is a ready to use light paraffin oil for ART-procedures to overlay small volumes of tissue culture medium. vOIL prevents the evaporation of water and protects the media from changes in osmolality and pH. Furthermore, it enhances rates of embryonic development during embryo culture.
Baroness Nicola Blackwood, junior minister for innovation in the Department of Health and Social Care has acknowledged that there is a lack of evidence to back up the current time limit on egg freezing.
The UK's Human Fertilisation and Embryology Act 1990 requires that human gametes (eggs and sperm) and embryos collected and stored by fertility clinics be destroyed after ten years, except in cases of premature infertility. This time limit applies to women often referred to as 'social' egg freezers irrespective of the age of the woman when the ten-year limit is reached; it applies equally to women who froze eggs when aged 25 and those who froze eggs at 45.
Live births following genome editing in human embryos: a call for clarity, self-control and regulation
Helen C O'Neill, Jacques Cohen
Association between early embryo morphokinetics plus cumulus cell gene expression and assisted reproduction outcomes in polycystic ovary syndrome women
Nasim Tabibnejad, Mohammad Hasan Sheikhha, Nasrin Ghasemi, Farzaneh Fesahat, Mehrdad Soleimani, Abbas Aflatoonian
Slower sperm are beaten by stronger and faster sperm when competing to fertilise an egg due to restrictive bottlenecks in the female reproductive tract.
Selecting sperm with greater stamina results in offspring that are healthier and live longer, according to a recent study in zebrafish.
The World Health Organization (WHO) is convening an 18-member committee of scientific experts from around the globe next month with the goal of developing international standards for the oversight of human genome editing.