Articles

Found results: 16335

Other life sciences

Another danger of cholesterol

The causative agent of breast cancer is a cholesterol metabolite, which increases the aggressiveness and activity of the tumor, acting on it in the same way as the hormone estrogen.

02.12.2013
Genetics

"Ancestral memory" found in mice

Epigenetic inheritance through generations is quite common in plants, but much less common in animals. Researchers from Emory University have shown the epigenetic mechanism of memory transmission through a generation of mice – from grandfathers to grandchildren.

02.12.2013
Controversial

Be careful with antioxidants

The balance between oxidants and antioxidants is crucial for our physiology, but this balance is individual for each person. Taking supplements with antioxidants, such as vitamins C and E, we can upset this balance.

02.12.2013
Genetics

FDA vs. 23andMe: Details

The dispute between 23andMe and the FDA, in fact, boils down to the question of whether it is worth giving people free access to their genetic data or whether they are so dangerous that it is better to leave this right only to specialists.

02.12.2013
New in Gerontology

Alzheimer's disease: good news

According to the results of a new study, currently the risk of developing Alzheimer's disease and associated senile dementia is lower, and the first symptoms of the disease appear later than 20 years ago.

02.12.2013
Nanotechnology

Tablets of the future: nanoparticles

If you are a patient and have a choice, it will be made in favor of medications that are taken orally. It seems that in the coming years this phrase may well be confirmed by the practice of using tablets based on nanoparticles.

29.11.2013
Controversial

Bio-skin or too expensive bandage?

Many doctors say that "Giamatrix" is not a wound–healing bioplastic material, but a wound dressing. Moreover, it suits some as one of the components of complex treatment, and for others it is unacceptable because of the high cost.

29.11.2013
Cellular technologies

Umbilical cord skin

For the first time, employees of the University of Granada were able to grow artificial skin from stem cells obtained from Warton's jelly (the connective tissue of the umbilical cord).

29.11.2013
Your health

Insulin resistance: from a protective reaction to illness

Nature economically uses the same mechanism to achieve different goals: it provides both an antibacterial protective reaction of the "respiratory explosion" and the normal development of the fetus. Alas, an incorrect lifestyle provokes a pathological course of the process, and then insulin resistance contributes to the occurrence of obesity, cancer or diabetes.

29.11.2013
New in Gerontology

The worse with sex, the shorter life

Prolonged waiting and willingness to have sex without "reward" had an extremely negative impact on the health of male fruit flies and significantly shortened their lives.

29.11.2013
Other life sciences

Computer super-meta-analysis

The program, created by IBM and Baylor Medical College, "reads" scientific articles in the amount of tens of thousands of pieces. And "digs out" new scientific knowledge in them, reducing the cost of developing new drugs many times.

28.11.2013
Nanotechnology

Bactericidal coatings imitating the surface of insect wings

The substance, accidentally obtained in the 1980s and once considered promising for solar panels and photodetectors, is structurally similar to... dragonfly wings. And it has the same excellent bactericidal properties!

28.11.2013
Other life sciences

Personal Genome Project is looking for volunteers

Within its framework, it is planned to sequence the genomes of one hundred thousand people who are ready to give up their right to medical secrecy for the sake of science. Their genetic data and records from medical records will be available for research in the field of personalized medicine.

28.11.2013
Other life sciences

Revolution in synthetic biology: prospects and risks

What benefits can research in synthetic biology bring? Supporters believe that this field of biology will transform the world like a revolution in information technology, but opponents are skeptical.

27.11.2013
Other life sciences

An implant that prevents gluttony and obesity

Swiss biotechnologists have created an implant containing genetically modified cells that automatically controls the level of satiety and hunger hormones in the blood, forcing experimental mice to eat less.

27.11.2013
Controversial

Is screening for mutations in cancer not effective enough?

The editor-in-chief of the Medscape Internet portal Eric Topol expressed his opinion, according to which the existing methods of screening for mutations associated with cancer risk generally do not meet the objectives.

27.11.2013