Life Sciences

Found results: 11545

New in Gerontology

Aging brain needs REST

Active in the period of intrauterine development, the REST gene protects neurons from stressful influences in the later stages of life, and a decrease in its expression in old age is associated with Alzheimer's disease.

24.03.2014
Genetics

Genetics knocks on the doors of operating rooms

Contrary to the popular opinion that genetics is a "guest from the future", the RNC is confident and successfully proves that this science has already become a powerful help for surgeons today.

24.03.2014
Other life sciences

A peptide in an hour

MIT scientists have adapted the synthesis reactions of short (from 30-40 amino acids) proteins in such a way that the entire peptide can be assembled not in a few weeks, but in a little more than an hour.

21.03.2014
Other life sciences

Three-dimensional printing in medicine

Many people say that three-dimensional printing will radically change our lives, allowing people to create the things they need in everyday life. Perhaps this is still a long way off, but in one area 3D technologies have definitely made a revolution - in medicine.

21.03.2014
Other life sciences

Chocolate without bacteria is a waste of money

Intestinal bacteria break down the polyphenols contained in chocolate to smaller and easily absorbed molecules with anti-inflammatory properties, which have a beneficial effect on the heart and blood vessels.

21.03.2014
Other life sciences

Watson continues to investigate

Twenty patients suffering from an aggressive form of brain cancer will soon have another member of the medical team serving them. In this role, the artificial intelligence of the famous Watson supercomputer will act.

21.03.2014
Cellular technologies

New hydrogel for myocardial repair

Tropoelastin-based hydrogel meets all the requirements for use in myocardial regeneration in terms of elasticity and resistance to loads. The "patches" grown on it are able to shrink not only in laboratory conditions, but also in the heart of the experimental animal.

20.03.2014
Genetics

Breast Cancer Gene Affects Brain Development

Mutations in the BRCA1 gene lead not only to malignant tumors of the mammary glands and ovaries. If this gene does not work in neural stem cells, the brain they form will be much smaller than it should be.

20.03.2014
Cellular technologies

Muscle stem cells repair damaged nerves

Stem cells isolated from human muscle tissue restored nerve integrity and the ability to control muscles in an animal model of sciatic nerve damage.

20.03.2014
Other life sciences

How to restore aging immunity

Inactivation of the Cbl-b protein restores the capacity of aging natural killers, which begin to perform their functions more effectively and actively suppress tumor metastasis.

20.03.2014
Biomedicine

How Antidiabetic Drugs Kill Tumors

Antidiabetic drugs of the biguanide class, causing an excessive load on the mitochondria, lead to the death of tumor cells in which there are disorders in glucose transport and mutations of mitochondrial DNA.

19.03.2014
Biomedicine

Liquid biopsy

Today, cancer diagnosis requires analysis of a sample of altered tissue – a biopsy. However, scientists are working on a "liquid biopsy" – analysis of tumor DNA in the blood.

18.03.2014
Nanotechnology

A new direction in science: plant nanobionics

After the introduction of carbon nanotubes into chloroplasts, the ability to photosynthesis increased by 30% in plants, and sensitivity to gases polluting the environment also appeared. The scientists attributed their research to a new field, which they called "plant nanobionics".

18.03.2014
Cellular technologies

Cellular Alchemy

The introduction of three transcription factors – proteins regulating the activity of genes – to immune-deficient mice transforms a specific group of cells of the intestinal mucosa into cells close to insulin-producing beta cells.

18.03.2014
New in Gerontology

Low-calorie diet and life expectancy: an evolutionary hypothesis

According to a new evolutionary hypothesis, in the wild, adaptation to a low-calorie diet ensures the preservation of the ability to reproduce in difficult times, and it contributes to an increase in life expectancy only in "greenhouse" conditions.

18.03.2014
New in Gerontology

Genes and physical education in old age

One of the significant factors determining the reaction of an aging organism to physical activity is the polymorphism of the angiotensin converting enzyme gene.

18.03.2014
Other life sciences

N-acetylglucosamine against neurodegeneration

The natural metabolite N-acetylglucosamine promotes the elimination of toxic protein aggregates associated with neurodegenerative diseases from the body of nematodes and increases their life expectancy. In human cells, this compound is also synthesized, and maybe…

17.03.2014
Biomedicine

Asplatin against cisplatin-resistant tumors

The binding of cisplatin to the aspirin fragment may contribute to antitumor therapy, which can also cope with those cells that are resistant to the action of cisplatin.

17.03.2014