CRISPR veterinary (genome editing) to attempt to halt a serious porcine disease

CRISPR veterinary applied to prevent the spread of a serious swine disease.  One of the worst nightmares for any pig farmer is to have a herd infected with porcine reproductive and respiratory syndrome virus (PRRSV). Having emerged in the 1980s, the syndrome now affects these...

Cloned animals. Confirmation that cloned sheep can live a long healthy life

After the cloning of Dolly the sheep (the first cloned sheep) 20 years ago this July, the possibility of using this technique to obtain animals that could be exploited for ethically sound purposes has been suggested. However, one problem that has arisen is that Dolly, it seems,...

Assisted suicide law in different countries

Assisted suicide, which essentially consists of a physician providing the means for a patient to end their own life, is legal in four American states, Canada and four European countries. In the United States, assisted suicide law is exclusively limited to patients with terminal...

Bone marrow stem cells for the treatment of multiple sclerosis. Surprising results

A recent study published in the The Lancet has shown surprising results as regards the use of autologous bone marrow stem cells for the treatment of multiple sclerosis. The study included 24 patients, 1 of whom died, while the remaining 23 had an objective improvement, with 69.6%...

Assisted suicide in children defended by UNICEF before the Canadian Senate

The Canadian government has legalised euthanasia and assisted suicide. The new legislation approved by Trudeau’s government does not, in principle, provide for assisted dying for children, although it does not exclude it completely by accepting that cases of mentally ill...

Review of assisted reproduction techniques worldwide

The efficacy of assisted reproduction worldwide techniques  has scarcely varied in recent years The situation of assisted reproduction in the world varies from country to country, and so must also be assessed globally. This has been done in a large study published in Human...

Mitochondrial replacement. New findings on mitochondrial DNA call into question further advances

This study shows that the mtDNA variant in the individual has a great effect on its interaction with the nuclear DNA. This finding is contrary to what was thought of the effect of mitochondrial replacement. On 6th July this year, investigators at the National Centre for...

Sperm quality depends on age and it is an important risk factor when fatherhood is increasingly delayed

Recent data from molecular genetics and epidemiology provide evidence that paternal age (sperm quality) is an important risk factor for offspring. When the sperm quality of young men were compared with the sperm of older men, the latter were found to have a higher risk of...

Potential application of organoids that mimic different organs

In 2011, almost incidentally, Madeline Lancaster of the Institute of Molecular Biotechnology in Vienna managed to produce primitive retina cells and different nerve cells from embryonic stem cells. However, Lancaster and her colleagues were not the first to produce a brain...

Contraceptives. Latest findings on their efficacy

Aside from the ethical and moral issues that accompany the use of contraceptives, one biomedical and social aspect of interest is to determine their efficacy, particularly when this is compared with natural fertility regulation methods, and most especially when it involves...