Life Sciences

I just remember that the walls are with wallpaper…

Steroid hormones, the synthesis of which by hippocampal neurons is triggered by large doses of ethanol, are to blame for memory lapses the morning after drinking.

Hands off beta cells!

The introduction of the CCL22 protein gene into the beta cells of the pancreas of mice with a model of diabetes stops the autoimmune reaction and protects the subjects from type 1 diabetes.

Artificial trachea on a plastic frame

First, a Y-shaped base was created from a new plastic-like nanocomposite polymer. Two days later, the patient's stem cells were placed there, where they were grown to tracheal cells ready for transplantation.

Stem cells labeled "extra pure"

For the first time in the half-century history of stem cell research, biologists have isolated the purest population of hematopoietic cells. To catch each such cell, they had to "filter out" about two hundred thousand umbilical cord blood cells.

References to the article "The Mystery of longevity"

The mystery of longevity

Why human life expectancy has been increasing rapidly in recent decades: solving the "mystery of longevity" with the help of the hypothesis of "manifested slow aging".

Give birth to healthy children!

According to the new law, couples can use preimplantation genetic diagnostics if, due to hereditary diseases of the parents, there is a high probability of the birth of a seriously ill or dead child, as well as a miscarriage.

Gold nanoparticles will block the blood supply to the tumor

Scientists from the University of Southampton have developed "smart" nanomaterials that disrupt the blood supply to cancerous tumors.

Obesity is a slow suicide

In heart failure, which occurs due to obesity, special regulatory molecules of small nucleolar RNAs are "guilty", which, with an increase in the concentration of fatty acids in the cell, trigger the procedure of cellular suicide.

Treatment of parkinsonism: dopamine neurons from fibroblasts

Scientists have taken a decisive step in the fight against Parkinson's disease. Dopamine neurons – cells whose death causes the symptoms of Parkinsonism – can be grown from the skin of the person himself.

We stop growing and multiplying – we move on to prolonging life!

Suppression of the mRNA translation factor of the IFG-1 gene causes the redistribution of the resources of the adult worms from the growth and reproduction regime to the preferential preservation of somatic cells, which prolongs their life by 40%.

43rd European Human Genetics Conference through the eyes of a participant

The 43rd Annual Conference on Human Genetics (ESHG 2011) was held in Amsterdam from May 28 to May 31, 2011.

Embryoid bodies on the conveyor

It takes about 10 minutes to manually prepare one drop, in which the embryoid body will then develop. The bioprinter prints rows of microscopic droplets with a suspension of embryonic stem cells at a rate of up to 160 drops per second.

Will targeted gene demethylation help in cancer treatment?

Fundamental research aimed at deciphering the process of demethylation – the "inclusion" of silent genes – in a few years may lead to the creation of new cancer treatments.

Increasingly synthetic biology

An international group of scientists developing a young field of life sciences – xenobiology, has succeeded in creating a bacterium in whose DNA thymine is replaced by 5-chlorouracil, toxic to other organisms.

Epigenetic changes cause a "personality crisis" in cells

Even small changes in epigenetic markers that determine whether a cell belongs to a particular type can lead to severe disorders of the functioning of the body, including the development of age-related diseases.

Genetically modified pigs – donors of the future

In the future, genetically modified pigs may solve the problem of a shortage of donor organs for transplantation.

Have you signed up as an organ donor?

In accordance with the new rules, every citizen of Germany will be interviewed on a mandatory basis about whether he agrees to become a donor after death.

Two mutations allow cancer cells to lengthen telomeres without telomerase

Scientists have solved the mystery of the paradoxical elongation of the telomeres of malignant cells that do not have the enzyme telomerase. It turned out that the answer lies in the defects of two genes.

Protect your brain from stress!

Experts have long suspected the existence of a relationship between chronic stress and neurodegenerative diseases, but its molecular mechanisms remained a mystery. One of these mechanisms has recently been discovered.