Life Sciences

Found results: 11545

Nanotechnology

Nano-3D microscope: made in Russia

Russian nanobiotechnologists, combining several well-known microscopy methods, have designed a device that allows to study the three-dimensional structure of objects at the nanoscale level.

06.09.2013
Genetics

Disabling the "sonic hedgehog" helped mice with Down syndrome

A single administration of a drug blocking the signaling pathway of the sonic hedgehog protein to newborn mice with Down syndrome ensures the formation of a full-fledged cerebellum in animals and improves their mental abilities.

05.09.2013
Prolonging youth

Arecoline restores strength to aging muscles

The alkaloid contained in the leaves and fruits of the areca palm "rejuvenates" worms by improving the condition of their motor neurons and, accordingly, slowing down muscle aging.

05.09.2013
Prolonging youth

Rejuvenating Video Games: Another controversial experiment

After two weeks of playing, the ability to solve several tasks at once in people aged 60-85 reaches the level of untrained twentysomethings. However, the data obtained do not answer the question: can this method prolong active life?

05.09.2013
Cellular technologies

Myelinating cells of the highest quality

Having developed a technology for producing functional brain cells that produce myelin, which forms the insulating shell of neurons, scientists have brought the use of stem cells in the treatment of multiple sclerosis and other myelopathies, as well as spinal cord injuries, closer.

04.09.2013
Biomedicine

Doping for lazy people

Under the influence of the drug SR9009, mice exhibit effects that are usually the result of intensive and systematic sports: rodents lose weight, their muscle volume and strength increase, they become able to run longer distances...

04.09.2013
Biomedicine

Flu shot: do no harm!

An experiment on piglets showed that vaccination against one strain of influenza can worsen the course of the disease caused by another strain of the virus.

04.09.2013
Theories of aging

Aging and epigenetics: new data

An important role in the physiological aging of the cell belongs to epigenetic factors affecting chromatin – the structure that ensures the ordering of genetic material in the nucleus.

03.09.2013
Other life sciences

Alpha-synuclein rehabilitation?

It is generally accepted that Parkinson's disease is complicated by phosphorylation of the alpha-synuclein protein. Swiss neurophysiologists have managed to show that in fact this process protects the body from the progression of the disease.

03.09.2013
Genetics

Has the culprit of Parkinson's disease been found?

In patients with Parkinson's disease, mutations in the Fbxo7 gene disrupt the mitophagy process, leading to the accumulation of dysfunctional mitochondria. This can explain, at least in part, the death of brain cells.

02.09.2013
Bioethics

Kidneys are expensive now

In India, kidney buyers will pay about $20,000. In China – $40,000 and even more. And a good healthy kidney from Israel costs 150,000. However, most sellers get from 1 to 10 thousand for their kidney.

02.09.2013
Prolonging youth

Polyamines against senile dementia

The addition of two polyamines to the diet of drosophila – spermidine and putrescine – prevents age-related memory deterioration. The researchers believe that their results can be transferred to humans with some caution.

02.09.2013
Prolonging youth

Do statins slow down aging?

Researchers from the University of Naples have shown that statins – drugs widely used to lower cholesterol levels in the blood – are able to slow down the aging process by reducing the rate of telomere shortening.

02.09.2013
Other life sciences

Diabetes and memory: new data

In patients with diabetes mellitus, the enzyme metalloproteinase-9 is activated, which reduces the production of neuroprotective substances and degeneration of the blood vessels of the brain develops.

30.08.2013
New in Gerontology

Another protein claims to be the head of memory

He has every reason to do so: firstly, the strength of memory depends on its presence in neurons, and secondly, its level decreases with age, which may explain the senile weakening of memory.

30.08.2013