Life Sciences

Found results: 11545

Other life sciences

The hormone of monogamy

Researchers are sure that from now on oxytocin can be considered a hormone of monogamy and marital fidelity.

19.11.2012
Other life sciences

Therapeutic parasites

The results of another study showed the possibility of therapeutic use of microscopic parasitic worm to normalize the composition of intestinal microflora in chronic inflammatory bowel diseases.

19.11.2012
Other life sciences

Contagious Parkinson's disease

The assumption that Parkinson's disease can be transmitted from neuron to neuron using the wrong spatial conformation of the alpha-synuclein protein was confirmed in healthy wild-type mice.

19.11.2012
Genetics

Mosaic Man

American geneticists have found out that a person is a "mosaic" of cells with different genomes. Approximately 30% of skin cells differ from each other in the number of copies of different DNA fragments; the same "genetic kaleidoscope" can be seen in other parts of the human body.

19.11.2012
Biomedicine

Cancer Immunotherapy: a mini-review

The reason for writing a review of advanced oncotherapy methods was the fact that the FDA included trastuzumab, a new drug for the treatment of an aggressive form of breast cancer, in its list of priorities.

15.11.2012
Genetics

"Alzheimer's genes": in second place – TREM2

An international group of scientists has reported the identification of the second most important genetic risk factor for Alzheimer's disease, after the APOE 4 gene, which more than triples the chances of the carrier of this mutation for the development of the disease.

15.11.2012
Other life sciences

Histones against bacteria

Biologists from the University of California at Irvine have found that histone proteins, whose main function is the packaging of DNA in the nucleus of the cell, are able to suppress the vital activity of intracellular bacteria.

15.11.2012
Theories of aging

FoxO gene, stem cells, immunity and immortality

Studying why the freshwater polyp hydra is immortal, scientists from the German city of Kiel unexpectedly discovered the connection of this phenomenon with the aging of the human body.

15.11.2012
Cellular technologies

New "ink" has been invented for bioprinters

Printing of matrices from living cells will facilitate new biochernils for an inkjet printer, allowing cells not to lose viability when printing and not to stick together in the printer nozzles.

13.11.2012
Biomedicine

A new method of catching cancer cells in the blood

The device developed at MTI pumps blood at a rate of 1 ml/h, 10 times faster than existing analogues, and catches 60-80% of cancer cells wandering in the blood. In the near future, the authors are going to increase the flow rate by 100 times.

13.11.2012
Genetics

Another weak spot has been found in Alzheimer's disease

The enzyme that regulates the metabolism of endocannabinoids and prostaglandin contributes to the development of Alzheimer's disease and, therefore, is a promising therapeutic target for the prevention and treatment of this disease.

13.11.2012
Genetics

Identical in appearance, but genetically different

The average pair of identical twins carries 359 genetic differences that arose during embryonic development. Therefore, despite the amazing similarity, they may have a different medical history.

13.11.2012
Biomedicine

Nose drops for diabetics

A new alternative to subcutaneous insulin injections can be a nasal spray, the composition of which turns into a gel at body temperature.

12.11.2012
Other life sciences

Appoptosin is a killer of neurons

The protein appoptosin may become a target of new drugs for the treatment of neurodegenerative diseases and traumatic brain injuries.

12.11.2012
Other life sciences

Lungs-on-a-chip will replace guinea pigs

Scientists from the Wyss Institute of Bioengineering are striving to ensure that the organ-on-a–chip models they have developed – the heart, intestines, kidneys and lungs - could gradually become a replacement for animal drug testing.

09.11.2012
Cellular technologies

Tissue Engineering: how to grow an ear?

Instead of the auricle removed due to a malignant tumor, the specialists of the Johns Hopkins University Clinic grew her a new one. Not easy, not fast, not very nice, but much better than nothing.

09.11.2012
Other life sciences

Is a little radiation useful?

Despite the fact that the mice used in the experiment had a genetic anomaly, low doses of radiation can also be useful for humans.

09.11.2012
Bioethics

A pest doctor?

A British oncologist performed at least 450 mastectomies on patients who did not have cancer. Another 700 patients who had breast cancer, he left those parts of the breast that must necessarily be removed with such a diagnosis.

09.11.2012