News

"Jumping genes" of monkeys suggested a new way to treat HIV infection

An international team of scientists has identified a combination of genes that prevent infection of monkeys with retroviruses.

Folic acid improves sperm quality

One of the essential problems of logic elements based on ribozymes, enzymes or optical materials is the different nature of the incoming and outgoing signal, unlike electronic systems that use a common input and output signal (electron). American researchers have tried to work around this problem by constructing logic gates based on DNA.

Need a new antibiotic? Set the bacteria against each other!

Scientists at the Massachusetts Institute of Technology and the University of Florida have proposed a new method for creating antibiotics, which consists in "inciting" one type of bacteria against another.

The retina can be stimulated to self-regeneration

Organ Regeneration: Disable miR-133 microRNA

XIV

The first customers of individual genomes

hoarding, which means – and a person.

Ecstasy vaccination

Cold-resistant mice with "bird" muscles

Male infertility can be transmitted through the maternal line

Transgenic mice, insensitive to cold, use the mechanism of heat production in muscles typical of birds, not mammals.

Bile acids instead of vitamin D

rmatozoa.

Soy Genistein Prevents prostate cancer metastasis

Derivatives of one of the bile acids activate vitamin D receptors without causing an increase in the level of calcium in the blood.

Anxiety is the source of female longevity

The problem was to obtain phosphors of a very small size, comparable to the thickness of the cell membrane of a living organism. And Kharkiv residents succeeded – they managed to obtain single crystals with a size of only two nanometers, each of which contains only 100 molecules.

New target of anti-cancer therapy: pyruvate kinase PKM2

Scientists have isolated an enzyme that gives cancer cells the ability to consume huge amounts of glucose.

Hypertension vaccine

The enzyme pyruvate kinase has two varieties, but only one of them – PKM2 – provides rapid glucose consumption by cancer cells.

A protein that stimulates the formation of fat cells has been found

Short-term stress impairs memory and learning ability

The shape of tomatoes is determined by the SUN gene

Insulin synthesis can be seen in the eyes

One such molecule is similar in shape to a ring with four spokes, which can individually occupy several different positions (which can be interpreted as binary zeros and ones). 16 molecules also make up a ring, with the 17th "sister" in the center, and together form a molecular machine capable of encoding over 4 billion combinations in the position of its parts.

Embryonic stem Cell Protein Suppresses tumor Growth

The antitumor effect of the microenvironment of embryonic stem cells, mediated by the suppression of Nodal protein expression in aggressive cancer cells, opens up new possibilities in cancer treatment. Perhaps Lefty protein is not the only factor secreted by embryonic cells that suppresses tumor growth.

A new target of anti–cancer therapy is tumor stroma

rotative-tumor factor.