New research, published today in Nature, reveals how increasing brain stiffness as we age causes brain stem cell dysfunction, and demonstrates new ways to reverse older stem cells to a younger, healthier state.
Aug 14, 2019
1
3398
Fever is known to help power up our immune cells, and scientists in Shanghai have new evidence explaining how. They found in mice that fever alters surface proteins on immune cells like lymphocytes to make them better able ...
Jan 15, 2019
1
19766
With millions of COVID-19 cases reported across the globe, people are turning to antibody tests to find out whether they have been exposed to the coronavirus that causes the disease. But what are antibodies? Why are they ...
May 13, 2020
0
298
It turns out undigested collagen blocking growing gland cells might sometimes be causing the blackheads seen in common acne, not just excess sebum, as had long been assumed. After the publication of a 2018 paper, researchers ...
Mar 19, 2019
0
4
Rabies virus is incurable and almost always fatal once it has invaded the central nervous system, with the victim doomed to suffer a horrible death.
Sep 28, 2023
0
35
Scientists have long known that tumors have many pockets of high acidity, usually found deep within the tumor where little oxygen is available. However, a new study from MIT researchers has found that tumor surfaces are also ...
Mar 20, 2019
0
1985
Hydroxychloroquine, the anti-malaria drug controversially touted as a cure for COVID despite a lack of robust evidence, is creating renewed interest as a potential treatment for omicron.
Jan 13, 2022
3
99
A recently published study from Aarhus University may mean a textbook chapter on the immune system will have to be rewritten.
Mar 10, 2023
0
436
A new drug developed by QIMR Berghofer could transform the treatment of COVID-19 by potentially protecting against infection by any SARS-CoV-2 variant and reversing the persistent inflammation that is a major driver of debilitating ...
Jun 27, 2023
1
474
More than 600,000 people worldwide have fallen victim to the lung disease COVID-19 so far, which is caused by the SARS coronavirus-2 (SARS-CoV-2). In order to obtain an effective therapy for COVID-19 as quickly as possible, ...
Jul 22, 2020
8
1355
In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or cytoplasm of a cell, to which a mobile signaling (or "signal") molecule may attach. A molecule which binds to a receptor is called a "ligand," and may be a peptide (such as a neurotransmitter), a hormone, a pharmaceutical drug, or a toxin, and when such binding occurs, the receptor undergoes a conformational change which ordinarily initiates a cellular response. However, some ligands merely block receptors without inducing any response (e.g. antagonists). Ligand-induced changes in receptors result in physiological changes which constitute the biological activity of the ligands.
This text uses material from Wikipedia, licensed under CC BY-SA
