Nanotubes: 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.
05.02.2008A three-month experiment on mice demonstrated that the nanotubes accumulating in the body do not have a toxic effect.
05.02.2008Finnish 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.
04.02.2008In 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.
04.02.2008Recently, 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 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.
04.02.2008In 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.
04.02.2008The 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.
04.02.2008Scientists 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.
04.02.2008The 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.
04.02.2008Artificial 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.
31.01.2008The "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.
31.01.2008The 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.
31.01.2008In 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.
31.01.2008A new radioprotector drug based on carbon nanotubes is designed to prevent the death of people from acute radiation sickness developing with massive radioactive exposure.
31.01.2008Suppression of the expression of one of the genes that are usually activated in the cells of the wound surface accelerates wound healing and prevents scarring.
31.01.2008"Owls" and "larks" differ from each other in the speed of the biological clock, localized in the hypothalamus. The speed of this clock, as it turned out, is programmed at the genetic level.
30.01.2008Scientists have covered tiny chips with layers of inert polymer nanofilm, making them "invisible" to the body's immune system. After that, the anti-inflammatory drug dexamethasone was introduced between the layers of the film and chips were implanted in mice.
30.01.2008To search for genes of predisposition to the formation of herpetic ulcers, the authors used a method of analyzing the coupling between gene loci, which allows tracking genetic markers in families to identify regions of chromosomes containing genes of predisposition to the disease.
30.01.2008Over the past year, several foreigners have been prosecuted in the Novosibirsk Region for collecting classified information in the field of scientific developments of scientists of the Siberian Branch of the Russian Academy of Sciences.
29.01.2008On the "caffeine day", the average daily blood sugar level of patients increased by 8% compared to the average daily value in the absence of caffeine. Caffeine also aggravated the increase in glucose levels after eating.
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