Life Sciences

Found results: 11545

Other life sciences

Ovarian cancer: a new biomarker

The substance RNU2-1f (microfragment of the RNA molecule) is a valuable diagnostic marker of the growth of malignant epithelial ovarian tumor.

27.01.2014
Other life sciences

Monitoring of the concentration of drugs in the blood on-line

A miniature device in the near future will allow doctors to monitor the concentration of drugs in the blood in real time and prescribe their dosage not at random, but based on the biological characteristics of the patient's body.

24.01.2014
Genetics

The oldest tumor

Cancer cells of transmissible sarcoma of dogs have been transmitted among animals for 11 thousand years, that is, they represent the oldest cell line on Earth.

24.01.2014
Other life sciences

Sex differences of hematopoietic stem cells

Female hematopoietic cells divide noticeably more actively than male ones, and much more often turn into "blanks" of red blood cells. Also, cells react differently to some signaling molecules, including estrogen, the "female" hormone.

24.01.2014
Nanotechnology

Antibacterial nanobombs

Upon contact with bacteria suspended in the air nanodrops of water enclosed in them oxygen radicals destroy the membranes of bacterial cells, and bacteria die.

23.01.2014
Genetic engineering

Fish oil from a bioreactor

Researchers from Germany, who are searching for a reliable and environmentally safe source of medically important polyunsaturated fatty acids, have demonstrated that these acids can be obtained with the help of soil bacteria.

23.01.2014
New in Gerontology

Is age–related mental retardation a myth?

The "throughput" of the brain does not decrease with age. Older people need more time to find an answer because their brains have to search for it in huge repositories of information accumulated over the years.

23.01.2014
Prolonging youth

Don't let your brain dry up

High blood levels of omega-3 fatty acids found in fish oil contribute to the preservation of brain mass and slows down the aging process in old age.

23.01.2014
Biomedicine

Inactivation of the gene will help with wound healing

Vanderbilt University researchers have developed a biodegradable scaffold for stable delivery of miRNAs that inactivate the expression of the PHD2 gene that suppresses the formation of new blood vessels.

22.01.2014
Other life sciences

Cyborg-sperm

A group of researchers from the University of Illinois has developed a new type of tiny biohybrid machines that can move like spermatozoa.

22.01.2014
Nanotechnology

Polymer cell imitates a living one

Dutch researchers have produced an artificial eukaryotic cell containing artificial organelles and biochemical reactions similar to those occurring in the cells of living organisms.

22.01.2014
Other life sciences

A self-sustaining pacemaker

American researchers have applied the piezoelectric effect to obtain energy from heart contractions. It seems that the issue of feeding pacemakers is close to its final solution.

22.01.2014
Other life sciences

New hope for diabetics

Suppression of the activity of one of the proteins causes the normally non-replicating beta cells, obtained even from old donors, to divide.

21.01.2014
Genetics

Let's protect coffee plantations from transgenic beetles!

Because of transgenic beetles, coffee becomes more expensive, while they themselves do not starve, eating coffee for about half a billion dollars a year for free. Sometimes leading to ruin, and maybe to suicide of local farmers.

21.01.2014
Other life sciences

Dr. Google

How far is Google going to go in medicine? What are his craziest projects? Is it possible to implement them in practice?

21.01.2014
Biomedicine

A new generation antibiotic sets records

Modification of natural acyldepsipeptides that destroy antibiotic-resistant bacteria using a mechanism different from the action of all known antibacterial drugs has increased their effectiveness tens and hundreds of times.

21.01.2014
Other life sciences

A world without antibiotics is a real threat

Humanity is threatened by the risk of a future without antibiotics – a world in which life expectancy will rapidly decline due to mortality from diseases that are currently easily curable.

20.01.2014
Other life sciences

Stem cells give their mitochondria to sick neighbors

The mitochondrial transfer carried out by mesenchymal stem cells with the help of the Miro1 protein promotes the restoration of the pulmonary epithelium in a mouse model of allergic inflammation of the respiratory tract.

20.01.2014
Cellular technologies

Leave stem cells embryonic

Scientists from the University of California at San Diego have identified a receptor for one of the key genes and a signaling pathway important for maintaining the undifferentiated state of human embryonic stem cells.

20.01.2014