Life Sciences

Found results: 11545

Biomedicine

Alzheimer's disease: where will we cut?

Changing the location of the "cut" of the beta-amyloid precursor protein can increase the effectiveness of treatment and reduce the number of undesirable consequences.

20.07.2017
New in Gerontology

"Longevity gene": shelf life – 99 years

Variations in the FOXO3 gene affect a person's life expectancy only up to the ninth decade, and the chances of living to 100 or more years do not actually depend on them.

20.07.2017
New in Gerontology

Pimples in the brain

In the brain samples of people with Alzheimer's disease, the predominance of bacteria living on the skin and in the mucous membranes, including the causative agent of acne on the face, was noted.

19.07.2017
Other life sciences

A new remedy for appetite

Under the influence of insulin injected intranasally, food seems less tasty to a person due to the regulation of neural signals in the mesolimbic system.

19.07.2017
Biomedicine

Tomatoes protected mice from skin cancer

Horse doses (10% of the menu was tomato powder) with prolonged (35 weeks) intake reduced the risk of skin cancer in mice by 50% – but only male.

19.07.2017
Other life sciences

Five letters vertically

British scientists cannot yet say whether crosswords and other word puzzles contribute to the preservation of cognitive functions – this should still be checked.

19.07.2017
Other life sciences

Invertebrate life expectancy record

Marine tube worms Escarpia laminata are among the longest-lived creatures on Earth: representatives of this species can live up to 250 years.

19.07.2017
Genetics

Great-grandfathers were smarter than us

An international team of scientists has concluded that the development of intelligence and related genetic markers occurred in the Holocene, but slowed down in the XX century.

19.07.2017
Genetics

Is there 3/4 "garbage" in our DNA?

American geneticist Dan Grauer from the University of Houston believes that only a quarter of the human genome is functional. Everything else is related to junk DNA.

18.07.2017
Other life sciences

A van of contagious mosquitoes

Males will mate with females and infect them with the Wolbachia bacterium. If everything goes according to plan, new mosquitoes will not hatch from eggs laid by infected females.

18.07.2017
New in Gerontology

Senile dementia and sex

Psychologists from Coventry and Oxford Universities have shown that high sexual activity correlates with the preservation of cognitive abilities in old age.

18.07.2017
Nanotechnology

Thawed embryos

For the first time, scientists managed to successfully carry out cryopreservation of a fish embryo. During the work, they used gold nanoparticles and a laser to defrost the embryos.

18.07.2017
Theories of aging

Aging – a strategy to fight parasites?

If we assume that sexual reproduction has developed as a way to change the phenotypes of resistance to parasites, then aging increases the efficiency of this process.

17.07.2017
Genetic engineering

Useful pests will be checked in the case

In America, they will try to use genetically modified cabbage moth butterflies to combat this ubiquitous pest of cultivated plants.

17.07.2017
Other life sciences

Killers are born

Natural killers are so called because they are ready to kill immediately, without preparation. The mechanism of action of a natural killer is the same as that of a T-killer.

17.07.2017
Prolonging youth

Young blood for a billionaire

Peter Thiel is confident that transfusion of blood plasma from young donors can potentially become a biological "source of youth".

17.07.2017
Prolonging youth

Behind the failure is a failure

Let's take a look at the path taken by science (and investors) to combat aging. This path is very sad – the dead with scythes stand on both sides of it.

14.07.2017
Biomedicine

"Skulachev ions" against bacteria

SkQ1 has a strong antibacterial effect. The target of this antibiotic is the bacterial membrane, the potential difference on which it reduces.

14.07.2017