Lower hormone doses may improve IVF egg quality
High doses of follicle-stimulating hormone during ovarian stimulation may disrupt follicular function leading to reduced egg quality...
BioNews
RNA (ribonucleic acid)
RNA (ribonucleic acid) is created when DNA is transcribed. Like DNA, RNA contains the chemical bases adenine (A), cytosine (C) and guanine (G), but uses uracil (U) instead of thymine (T).
206 articles
Image by Matthew Daniels via the Wellcome Collection. Depicts human cells, showing the stages of cell division.
CRISPR genome editing treatments may raise cancer risk
The use of CRISPR genome editing in immune cells increases genomic instability, which may be a risk factor for cancer, according to new research...
Image by Alan Handyside via the Wellcome Collection. Depicts a human egg soon after fertilisation, with the two parental pronuclei clearly visible.
Microscopic structures in semen could affect implantation
Microscopic sacs, known as exosomes, present in semen may shed light on previously unexplained cases of male infertility...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
Book Review: Why DNA? – From DNA sequence to biological complexity
Prior to 2020, genetic mutations weren't something that regularly made the news. Now, two-and-a-half years out from the onset of the COVID-19 pandemic, new genetic variants continue to hit the headlines, and genomic mutations – in a virus, at least – are something the public are much more aware of...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
Human gene-function map available to all scientists
Every single human gene has been linked to its function by scientists from the Massachusetts Institute of Technology, who have made the comprehensive gene-function map freely available to the scientific community...
Image by K Hardy via the Wellcome Collection. Depicts a human embryo at the blastocyst stage (about six days after fertilisation) 'hatching' out of the zona pellucida.
Precursor to blood-forming stem cells determined in human embryo
Precursors to the stem cells that make blood have been derived in vitro from human pluripotent stem cells for the first time...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
Single mutation discovered may be genetic cause of lupus
A novel mutation in a gene called TLR7 has been identified as directly linked to the development of lupus...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
TALED genome editing approach targets mitochondrial DNA
An approach which significantly improves the ability to modify mitochondrial DNA in living cells has been developed by scientists in South Korea...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
Noncoding RNAs discovered that modify memories
Noncoding RNA has been found to play a key role in forming new memories and overcoming fear, a new study reveals...
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
Mice produced from unfertilised eggs
Full-term mouse offspring were derived from single unfertilised eggs using targeted CRISPR/Cas9 epigenome editing...