Life Sciences

Found results: 11545

Other life sciences

Cancer stem cells: new data

Three independent groups of researchers for the first time traced the fate of individual tumor cells in the organisms of laboratory mice and received new evidence of the existence of cancer stem cells.

01.11.2012
Cellular technologies

Cartilage from the skin

A team of scientists at Duke University Medical Center has grown cartilage tissue from induced pluripotent mouse stem cells. The obtained chondrocytes are suitable both for the elimination of cartilage defects and for the study of osteoarthritis.

01.11.2012
Bioethics

Transplantologists sew another case

Taking into account the fact that the deceased is a citizen of Ukraine, where the presumption of consent to transplantation does not apply, his relatives can file a civil lawsuit with doctors.

01.11.2012
Genetic engineering

The first swallow of gene therapy

For the first time in the EU, it is allowed to use the drug alipogene tiparvovec for gene therapy of a rare hereditary pathology – lipoprotein lipase deficiency (type I hyperlipoproteinemia).

31.10.2012
Theories of aging

Cancer and aging: a mini-review

Old cells, on the one hand, act as tumor suppressors, and on the other hand, the specific metabolism of old cells can cause the malignancy of neighboring precancerous cells.

30.10.2012
Cellular technologies

Kidneys "from a test tube": one step closer

Due to incubation in a solution of vascular endothelial growth factor, organoids grown from a suspension of cells continued to mature in rat organisms after implantation and acquired the ability to filter blood and perform other kidney functions.

30.10.2012
Other life sciences

Stem Cell Bodyguards

A rare and previously unknown subgroup of immune cells – macrophages – maintains the "eternally young" state of hematopoietic stem cells in the bone marrow, preventing their differentiation.

29.10.2012
Biomedicine

Is resveratrol useless for healthy people?

In a study involving 29 post-menopausal women who did not have type 2 diabetes and were relatively healthy, it was not possible to detect the slightest effect from taking resveratrol.

26.10.2012
Genetics

How will a placebo affect you?

The ability to predict the placebo effect in advance, based on the analysis of variations of just one gene, will help reduce the scale, cost and duration of clinical trials.

25.10.2012
Genetics

Intelligence genes are multiplying rapidly

Scientists predict that the number of intelligence genes may be more than a thousand. Why has always rational nature in this case turned out to be so wasteful?

24.10.2012
Other life sciences

A new target for drugs against Parkinson's disease

The mutation responsible for the development of both familial and sporadic cases of Parkinson's disease causes deformation of the membrane surrounding the nuclei of brain stem cells. "In vitro" the normal function of mutant cells has already been restored.

24.10.2012
Prolonging youth

Passport, biological, psychological age…

With the so-called successful aging, not only the biological, but also the psychological age of a person lags behind the chronological one. However, the concept of psychological age is not scientifically developed enough.

23.10.2012
Biomedicine

A new epigenetic marker of breast cancer

The DOK7 gene as a marker of breast cancer has unique prognostic characteristics: hypermethylation of one of its promoters in peripheral blood cells can be detected several years before diagnosis.

23.10.2012
Cellular technologies

The neuron lived, the neuron is alive, the neuron will live!

The unexpectedly high survival rate of embryonic neurons in the brains of newborn mice gives hope for the effective use of nerve cell transplantation for the treatment of neurodegenerative and other neurological diseases.

23.10.2012