- English version
- News
News
Found results: 3272
Smoking during pregnancy is fraught with sudden death of infants
If an infant, for example, turns face down in the crib, he should feel the lack of oxygen and move his head, but in children exposed to nicotine in the womb, this mechanism does not function properly.
06.02.2008Grapefruit against hepatitis C
The hepatitis C virus does not integrate its genetic material into the chromosomes of the host cells, so theoretically it can be completely removed from the body if the infection of healthy cells is stopped.
06.02.2008Now the runny nose can be studied on mice
Specialists from Imperial College London have bred mice capable of suffering from rhinovirus infection. Previously, the study of the pathogenesis and the search for methods of treating the "contagious cold" were difficult, since the virus could only affect humans and higher primates.
06.02.2008Diet against cardiovascular diseases
The authors identified many dietary factors that affect the likelihood of developing cardiovascular diseases. At the same time, to optimize the state of the cardiovascular system, they recommend the selection of an individual diet for each patient.
05.02.2008What makes us scratch, where does it itch?
Scratching increases activity in the secondary somatosensory cortex, the pain center and the prefrontal cortex associated with manifestations of compulsive behavior (obsessive actions), which explains the irresistible desire to continue scratching the itchy place.
05.02.2008Nanotubes: no harm to health detected
A three-month experiment on mice demonstrated that the nanotubes accumulating in the body do not have a toxic effect.
05.02.2008The patient carried a prosthetic jaw in his stomach for 9 months
Finnish scientists have transplanted the man's upper jaw, obtained from his own stem cells. For nine months, the graft was grown in the patient's stomach.
04.02.2008Educated people live six years longer than the ignorant
In particular, a 35-year-old employee with a higher education has better health indicators compared to his coeval worker. As a result, representatives of the first category live on average six years longer.
04.02.2008The first seed samples were laid in the "Doomsday Vault"
Recently, the first 330 kilograms (7 thousand samples) of seeds from 36 African countries from the International Institute of Tropical Agriculture (IITA), based in Nigeria, were shipped to Norway. At the same time, national seed banks, including Colombia, Ethiopia, India, Kenya, Mexico, Peru, the Philippines and Syria, began sending their collections.
04.02.2008The gold-plated virus will deliver both genes and nanoparticles to cells
The combination of nanotechnology and gene therapy can provide a number of advantages in the treatment of various diseases, and for this it is necessary to learn how to deliver both genes and nanoparticles to cells simultaneously.
04.02.2008Getting ready to grow "female spermatozoa"
In the future, "female" spermatozoa grown in the laboratory can be used for artificial insemination of eggs. In this case, the biological "father" of the resulting child will be a donor woman, from whose cells spermatozoa were obtained.
04.02.2008All blue-eyed people have a common ancestor
The mutation that resulted in blue-eyed people occurred in a gene adjacent to the OCA2 gene, which led to selective suppression of melanin synthesis in the iris of the descendants of the first carrier of this mutation.
04.02.2008Bacteriophages as a matrix for self-assembly of stable nanostructures
Scientists working with the bacteriophage M13 decided to study the possibility of using biologically inert proteins, which make up most of the virus particle, as a matrix for creating nanoconstructions.
04.02.2008Gene therapy against opiate addiction
The authors created genetically modified mice in which endorphin receptors, after meeting with opiates, could enter into endocytosis in the same way as it happens in the presence of endorphins. For these animals, morphine continued to be an excellent analgesic, not causing the development of tolerance and dependence.
04.02.2008Two new letters in the DNA alphabet
Artificial bases, although they are not able to encode amino acids, can be used as markers in the chromosomes of genetically modified organisms. They can be used both in theoretical research and in applied research, including in nanotechnology.
31.01.2008Nicotine addiction genes
The "smoking genes" that correlate most strongly with increased cravings for nicotine, the researchers considered certain gene variants of two membrane proteins of nerve cells – alpha-3 and alpha-5 subunits of the nicotine receptor. Now pharmacologists know the targets for new generation anti-nicotine drugs.
31.01.2008Bionic prostheses work almost like living hands
The world's first commercially available bionic prosthetic hands with control of all fingers of the hand have already been received by more than 70 owners in different countries. In a month, manufacturers hope to celebrate the production of the hundredth biomechanical arm.
31.01.2008A midlife crisis is inevitable, but by old age you will be optimistic again
In the average person, the deterioration of the psychoemotional state occurs gradually and in most it stops only after 50 years. However, by the age of 70, if a person remains in good physical shape, his subjective feeling of happiness corresponds to the attitude of a 20-year-old.
31.01.2008Nanotubes–radioprotectors: 5000 times better
A new radioprotector drug based on carbon nanotubes is designed to prevent the death of people from acute radiation sickness developing with massive radioactive exposure.
31.01.2008