Sentences with phrase «with organism ageing»

Not exact matches

«We are trying to understand the causes of aging by linking the mechanisms that control the oxidation of proteins at the cellular level with the mechanisms that determine the lifespan of the whole organism,» Apfeld says.

Because the PP4 DNA of worms is over 90 % identical with that of humans, it is possible that the protein plays a similar role in all animals as a universal regulator of meiosis, particularly as an organism ages.

With the marine fossils grouped by age, the collection shows a dramatic 65 - 70 % reduction in the number of species living in the Antarctic 66 million years ago — coinciding exactly with the time when the dinosaurs and many other groups of organisms worldwide became extinct at the end of the Cretaceous PerWith the marine fossils grouped by age, the collection shows a dramatic 65 - 70 % reduction in the number of species living in the Antarctic 66 million years ago — coinciding exactly with the time when the dinosaurs and many other groups of organisms worldwide became extinct at the end of the Cretaceous Perwith the time when the dinosaurs and many other groups of organisms worldwide became extinct at the end of the Cretaceous Period.

Their capacity to divide, differentiate and repopulate tissues, which typically declines with an organism's advancing age, resembled those of their stem - cell counterparts in younger animals.

This data produced a plot with a series of curves, each of which tracked how the organism changed in the size and number of units with age, enabling the researchers to produce a computer model to replicate growth in the organism and test previous hypotheses about where and how growth occurred.

Why do organisms age, and why do these diseases rise exponentially with age?

The researchers then concluded that as the amount of NAD + in cells declines with age, there aren't enough of these molecules to prevent harmful interactions between proteins called DBC1 (which is found across a wide range of organisms, from bacteria to humans) and PARP1 (a protein that is known to control DNA repair).

Regeneration capacity declines with age, but why juvenile organisms show enhanced tissue repair remains unexplained.

The mammalian immune system defends the organism against pathogens, and possibly cancer, but is known to become dysregulated with increasing age.

With his Pioneer Award, Ismagilov will develop droplet - based microfluidic technologies for quantitative studies of protein aggregation diseases and aging at the molecular level and in entire organisms.

Closely correlated with this is the observation that organisms which age more slowly also consistently display lower rates of mitochondrial free radical damage.

Systems biology and bioinformatics analyses are employed to compare research results from model organisms with human aging to develop models and predictions for causative molecular mechanisms and circuits that influence human aging.

The Ellison Medical Foundation supports basic biomedical research, with a current focus on understanding how humans and other organisms age, and on defining the fundamental biological mechanisms that prevent age - related diseases and disabilities.

This idea, however, is far from true as there are many reliable scientific documents indicating that the well balanced and unrefined entirely plant - based vegan diet provides human organism with all essential nutrients and is appropriate for all age groups including children.

High levels of IGF - 1 has been shown in a wide variety of organisms, including humans, to be associated with increased risk of death from age - related diseases such as cancer and heart disease.

In a bad scenario many kittens of different ages from different litters (and thus probably exposure to different viruses and organisms which will be shared with the other vulnerable kittens) are kept in crowded and unhygienic environments, without being vaccinated, and perhaps not getting the appropriate nutrition for kittens.

Humans have modified organisms for ages, making the dog species as variegated as Chihuahuas and mastiffs, transforming corn from a slender grass into a stalk studded with cobs of nutritious grain.