Life Sciences

Found results: 11545

Cellular technologies

Embryos in jelly

The development of a method for storing "dormant" cells in a hydrogel can significantly simplify and reduce the cost of storing and transporting stem cells and embryos.

12.02.2016
Nanotechnology

Enzymes were imprisoned in DNA chambers

Scientists from Arizona State University have built nanoscale chambers from DNA, inside which they placed enzymes. Experiments have shown that the activity of enzymes at the same time increased by 8 times.

12.02.2016
Cellular technologies

Cord blood instead of bone marrow

Umbilical cord blood immune cells destroy leukemia cells much more effectively than their adult counterparts.

09.02.2016
Bioethics

"The Macchiarini case": a new round of scandal

The management of the Swedish Karolinska Institute announced that the institution is ceasing cooperation with surgeon Paolo Macchiarini, who for the past five years has carried out scandalous tracheal transplant operations in Russia and a number of other countries, which ended in the death of almost all patients.

09.02.2016
Theories of aging

Overcome aging. Part II.

Some burrowing ("underground") rodents belonging to the families Spalacidae (blind man) and Bathyergidae (Damar digger and naked digger) are famous for their long life for their weight category.

08.02.2016
Genetics

Early and late birds

Genetic analysis and survey data revealed 15 sections of the genome that strongly correlate with people's daily routine.

08.02.2016
Theories of aging

Speed up and slow down the time for the worm

Experiments with mutant worms living in different conditions have shown that the survival curve can lengthen or shorten depending on heredity and external factors, but its shape almost always remains unchanged.

08.02.2016
Other life sciences

Three whales of biotechnology

Senior Researcher at the Institute of Information Transmission Problems of the Russian Academy of Sciences, Alexander Panchin – about what biotechnologies give us today and what to expect from biotechnologies in the very near future.

05.02.2016
Genetic engineering

Editing the embryo genome

Konstantin Severinov, a specialist in the field of molecular biology, tells about what it is and why.

05.02.2016
Theories of aging

Overcome aging. Part I.

In this article we will talk about animals for which the insignificant (negligible) mode is shown or only assumed and a little bit about original approaches to achieving negligible aging in humans.

04.02.2016
Prolonging youth

Genetically modified centenarians

American researchers have increased the lifespan of mice by up to 35%, clearing their body of aged cells.

04.02.2016
Genetic engineering

Males without male genes

A group of scientists from the University of Hawaii, working with transgenic mice, obtained offspring from a line that does not have a Y chromosome. Moreover, the males of this line did not have a single gene that contains the Y chromosome, and the offspring from such males turned out to be quite viable and fertile.

04.02.2016
Genetics

Surnames and Y chromosomes in Spain

Spaniards with rare surnames are distant relatives, as are men in many other countries. But it also happens the other way around – for example, in Ireland.

03.02.2016
Genetics

APOBEC Double Agent

Mutations leading to the development of 18% of cancerous tumors occur during DNA replication under the action of APOBEC, an antiviral defense protein.

03.02.2016
Theories of aging

Aging trajectories

The dynamics of aging is traditionally described with the help of "survival curves", showing what proportion of individuals survive to a certain age. The nature of the dependence of mortality on age varies greatly among different organisms.

03.02.2016
Genetic engineering

Remember these letters

CRISPR/Cas9 technology is able to change the attitude of mankind to hundreds and thousands of currently incurable hereditary and severe acquired diseases, used in genetic engineering.

03.02.2016
Prolonging youth

Phytotherapeutic geroprotector

Scientists from Japan have found out that the folk drug rikkunsito, used for stomach pains, causes the body to produce the hunger hormone ghrelin, which, in turn, slows down aging by acting on the gene and protein SIRT1.

03.02.2016