The neurotransmitter serotonin can adversely affect the heart's mitral valve, contributing to a heart disease known as degenerative mitral regurgitation, according to a new multicenter study involving researchers from the ...
Jan 18, 2023
0
72
Cancer cells have developed multiple mechanisms to thrive. One example, derived from age-old theories of evolution, is positive selection i.e., the propensity of cells with favorable cancer mutations to flourish. However, ...
Jan 18, 2023
0
12
Monoamine neurotransmitters such as serotonin and dopamine play important roles in our cognitive and emotional functions. Their evolutionary origins date back to metazoans, and while the function of related genes is strongly ...
Aug 4, 2022
0
4
New research has uncovered how genetic changes that accumulate slowly in blood stem cells throughout life are likely to be responsible for the dramatic change in blood production after the age of 70.
Jun 1, 2022
0
202
It has been almost 44 years years since the first in vitro fertilization (IVF) procedure was successfully performed in 1978 in Lancashire, England. Since then, more than 8 million babies have been born worldwide to assisted ...
May 31, 2022
0
6
(HealthDay)—Among women with three or more good-quality blastocysts, conventional in-vitro fertilization (IVF) results in a cumulative live-birth rate that is noninferior to the rate obtained using embryo selection with ...
Nov 29, 2021
0
1
Each year, tens of thousands of babies are born in the United States as the result of IVF (in vitro fertilization) – where several eggs are fertilized outside the mother's body and then an embryo is selected for transfer ...
Oct 12, 2021
0
15
The rise of coronavirus variants has highlighted the huge influence evolutionary biology has on daily life. But how mutations, random chance and natural selection produce variants is a complicated process, and there has been ...
Sep 9, 2021
0
4
The Delta variant is likely to become the most dominant strain globally. What does that mean for current and future variants? Natural selection has shaped the evolution of all living things on our planet, including viruses. ...
Jul 26, 2021
0
12
COVID-19 is only the latest infectious disease to have had an outsized impact on human life. A new study employing ancient human DNA reveals how tuberculosis has affected European populations over the past 2,000 years, specifically ...
Mar 4, 2021
0
71
