Life Sciences

Found results: 11545

Other life sciences

Another mechanism of neuronal death in Alzheimer's disease

Astrocytes, which provide neurons with nutrition and oxygen, become the unwitting culprits of their death, since high levels of amyloid peptides induce their apoptosis. Deprived of nutrition, neurons degenerate.

25.05.2012
Cellular technologies

Stem cells will relieve neuropathic pain

With the help of transplanting immature embryonic cells to laboratory mice, scientists managed to normalize the work of neurons that are responsible for suppressing chronic (neuropathic) pain.

25.05.2012
New in Gerontology

A shaggy Siberian digger?

According to preliminary data, the common sleeper can become a Russian alternative to the famous naked digger: he lives much longer than rodents of the same size (how much is still unknown) and, it seems, does not age until death.

24.05.2012
Genetics

RNA is the protector of the genome

A previously unknown class of ribonucleic acids, RNA, which reacts to DNA damage, protects the integrity and stability of the genome in case of damage caused by external and internal factors.

24.05.2012
Other life sciences

Phase I clinical trials

The main stage in assessing the safety and effectiveness of potential medicines is phase I clinical trials, in which the drug is used for the first time by healthy volunteers or patients.

23.05.2012
Genetics

The Yeti hunting season has been announced

If a yeti scalp is stored in your shed and you are eager to verify its authenticity, the participants of the Oxford-Lausanne Collateral Hominid project are waiting for you – employees of Oxford University and the Zoological Museum of Lausanne.

23.05.2012
Genetic engineering

Super Luciferase

The molecules of the modified luminescent luciferase protein emit five times more light than their natural counterparts.

22.05.2012
Genetic engineering

RW bacteria

So far, only one bit of information can be recorded, overwritten and stored in hundreds of generations in the DNA of E. coli. The next step will be to create a bacterial memory that stores eight bits (one byte).

22.05.2012
Genetic engineering

Gene therapy for repairing neurons

The researchers hope that their method of introducing a working copy of the gene into the brain can be used to treat parkinsonism and other diseases associated with impaired protein synthesis in neurons.

21.05.2012
Cellular technologies

Stem cells against myodystrophy

This is the first demonstration of the effectiveness of the treatment of muscular dystrophy with human stem cells. Earlier, the same group of scientists was the first to use mouse embryonic cells for the treatment of muscular dystrophy.

21.05.2012
Nanotechnology

Quantum dots are safe for primates

A pilot study on primates showed that cadmium selenide quantum dots are not toxic to animals in which no adverse events were registered within a year after the introduction of these nanoparticles.

21.05.2012
Genetics

The "fifth column" of Alzheimer's: ApoE4

The ApoE4 gene, a known risk factor for Alzheimer's disease, triggers a signaling cascade that leads to increased permeability of the blood vessels of the brain, which allows toxic substances to enter the brain tissue in large quantities.

21.05.2012
Cellular technologies

Stem cells restored spinal cord after injury

The introduction of their own stem cells isolated from the bone marrow contributes to recovery after spinal cord injuries, at least while maintaining residual neurological function.

21.05.2012