Other life sciences

Found results: 2900

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
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
Other life sciences

The world's oldest microorganisms

In the bottom sediments of the North Pacific Ocean, microbiologists have found bacteria that live without access to nutrients for up to 86 million years. They manage to maintain life during this time due to an extremely slow metabolism.

18.05.2012
Other life sciences

Cyber arm for the paralyzed

Two elderly people, paralyzed for many years, were able to drink coffee with the help of a mechanical arm controlled by signals from the brain.

17.05.2012
Other life sciences

OraQuick HIV test: you can, but be careful

The FDA Advisory Commission unanimously approved the free sale of OraQuick test systems. At the same time, experts obliged the manufacturer to print a warning on the product packaging about possible errors in the diagnosis of HIV infection using OraQuick.

17.05.2012
Other life sciences

A personal HIV test is two percent short

In the clinic, the OraQuick test system determines the presence or absence of HIV infection with 99% accuracy. The accuracy of the test for self-use was 93%; according to the requirements of the FDA, this indicator should be at least 95%.

15.05.2012
Other life sciences

Optoelectronic retina without batteries

To create an artificial retina, scientists decided to use solar cells activated by an infrared ray, which made it possible to combine the transmission of visual information with the transmission of energy and simplify the device of the implant.

14.05.2012
Other life sciences

Electronic retinas are being improved

A year ago, a great achievement was the "electronic retina" at 60 pixels. The newest electronic chips with a size of 3 sq.mm already contain 1.5 thousand photosensitive photodiodes.

05.05.2012
Other life sciences

How do stem cells bring immunity back to normal?

Molecular biologists from the University of Southern California have established how the introduction of stem cells helps to stabilize the immune system in autoimmune diseases.

28.04.2012
Other life sciences

Ultrasound – for prostate cancer

Scientists have reduced the number of side effects when using high-intensity focused ultrasound for the treatment of prostate cancer.

25.04.2012
Other life sciences

Alzheimer's, heal yourself!

The cure for Alzheimer's disease lies in the same protein that causes it: one of the fragments of the beta-amyloid precursor protein suppresses the work of the enzyme responsible for pathogenic modification of the same protein.

12.04.2012
Other life sciences

Store your health data in a Biobank!

In the UK, the "Biobank" has been launched – the most extensive and detailed database, which includes medical and genetic data, as well as information about the lifestyle of half a million people.

03.04.2012
Other life sciences

All cancer genes in one database

A publicly accessible database has been created that combines data on the cancer genome and suspected effective drugs.

29.03.2012
Other life sciences

Gut-on-a-chip

The researchers hope that "gut-on-a-chip" will become a convenient model for a better understanding of the causes and development of a number of intestinal diseases and will help develop new methods of their treatment.

28.03.2012
Other life sciences

Do not prevent children from crawling in the mud!

The "hygiene hypothesis", according to which excessive cleanliness of the environment at an early age is fraught with an increased risk of developing allergic and autoimmune diseases, has received scientific confirmation.

26.03.2012
Other life sciences

Toxoplasma against Alzheimer's disease

The latent form of toxoplasmosis infection has an immunosuppressive effect, a beneficial side effect of which is the suppression of the development of Alzheimer's disease.

23.03.2012
Other life sciences

I drink because girls don't like me

After mating, the male fruit fly will prefer a soft drink, and the rejected one will reach for a drink. Scientists intend to further study the effect of neuropeptide F on the formation of attitudes to sex and alcohol, including in humans.

19.03.2012
Other life sciences

Very personalized medicine

Monitoring with the help of all known "-omics" for the processes occurring in a particular organism that lead to the development of diseases is already possible, but so far it is too expensive.

19.03.2012