rise 2 3

Tag: "rise" at biology news

MicroRNA helps prevent tumors

...are normally regulated by microRNAs, can help give rise to tumors if a mutation in the gene disrupts the microRNA's ability to regulate it. In addition, the results show that the interaction of one microRNA with one of its target genes can produce a certain trait in mammals. This is important because scie...

Baby fish 'smell their way home'

...genetic separation between reefs may be what gives rise to so many different species in coral reef systems." The researchers were intrigued how tiny damsel and cardinal fish, born on one reef, managed to find their way back home to preserve such remarkable population differences, braving strong current...

Killing the messenger RNA -- But which one?

...levels of the enzyme can cause uric acid levels to rise in the blood, triggering painful episodes of gout. Similarly, in the brain, excess uric acid can damage sensory neurons and cause deafness. Working with a strain of transgenic mice unable to perform RNA editing and normal control mice, the researc...

New dopamine brain target discovered

...target with dopamine or specific drugs triggered a rise in calcium in the brain. As calcium has a profound effect on almost all brain function, this rise in calcium causes a cascade of events in the brain. This is the first time that a direct connection...

Fish growth changes enhanced by climate change

... temperatures at intermediate depths are likely to rise near-globally,?Dr Thresher said. “This could mean that over the course of time, the decrease in growth rates for the deep-water species could slow or even be reversed,?Dr Thresher said. ...

Volcanic eruptions, ancient global warming linked

..., the continent to thin and the molten material to rise to the surface," Duncan said. "It was like lifting a lid. The plate came apart and gave birth to the North Atlantic Ocean." The link from the volcanism to the warming period came through correlations with the marine fossil record. Dramatic changes...

Syphilis rate on rise in US gay, bisexual men

...xuals. Nevertheless, gay men have seen their rates rise significantly in this decade. "The entire nation was caught unawares," said study lead author James Heffelfinger, M.D., a medical epidemiologist with the Centers for Disease Control and Prevention. "You’re concentrating on one population, but the...

Dinosaur extinction didn't cause the rise of present-day mammals, claim researchers

... dinosaurs 65 million years ago prompted the rapid rise of the mammals we see on the earth today. The multinational research team has been working for over a decade to compile the tree of life from existing fossil records and new molecular analyses. They show that many of the genetic 'ancestors' of t...

Huddling and a drop in metabolism allow penguins to survive the South Pole cold

...dense huddle increases up to 35°C. Yet there is no rise in the body temperature of these birds although the body temperature of individuals exposed to only 20°C in the laboratory goes up to 40-41°C. The team believes that a possible explanation for the constancy (or slight decrease) of core temperature in...

A potential biological cause for sudden infant death syndrome

... therefore breathing in less oxygen. Normally, the rise in carbon dioxide activates nerve cells in the brainstem, which in turn stimulate respiratory and arousal centers in the brain so that the baby doesn't asphyxiate. "A normal baby will wake up, turn its head, and start breathing faster when carbon...

ASU researchers test antibacterial effects of healing clays

...es its full potential, smectite clay could one day rise above cosmetic use to take its place comfortably with antibacterial behemoths like penicillin. "We use maggots and leeches in hospitals, so why not clay?" Haydel poses. "I had a professor in graduate school say, 'Maybe perhaps once in your life, in ...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...tem cells, which are found in bone marrow and give rise to all red and white blood cells, and progenitor c...ic capacity for becoming like a seed that can give rise to all cell types necessary for the development of an entire organism," adds co-corresponding author...

Theory of oscillations may explain biological mysteries

...oupled oscillating biological populations can give rise to potentially important effects such as “synchronized chaos? the interaction between two weakly competing consumers of a food resource can be transformed by the arrival of a third competitor to provide unpredictable opportunities for the newcomer to...

Underweight women at greater risk of miscarriage

...on, the odds of subsequent miscarriage appeared to rise by more than 60%, while fertility problems were associated with 41% increased odds. All types of assisted reproduction were associated with increased odds, but the ratios were highest among pregnancies resulting from intrauterine insemination or arti...

Harvard scientists identify compounds that stimulate stem cell growth in the brain

... LTB4 they proliferated and differentiated, giving rise to additional stem cells and to differentiated neurons with limited or absent capacity to divide. When exposed to LXA4, these cells experienced decreased growth and apoptosis. "This study opens doors to new therapeutic approaches for a wide range ...

Vaccine-producing 'plant-factories'

...gan itself that was glycosylating. This focus gave rise to finding a new route of traffic between the reticulum and the chloroplast. Up to now it has been argued that the endoplasmic reticulum was connected to other parts of the cell such as the Golgi apparatus and the plasmatic membrane, etcetera, but no...

Tearing down the fungal cell wall

...n the precise series of molecular events that give rise to these drastic effects on spore viability." ...

Molecular 'marker' on stem cells aids research, perhaps therapies

...ace of certain stem cells in bone marrow that give rise to fat, cartilage and bone. These so-called mesenc...is made up of hematopoietic stem cells, which give rise to blood and immune cells. Dr. Rita Perlingeiro, assistant professor in the Center for Development...

New findings could lead to vaccine for severe malaria

...ells to accumulate in organ capillaries, and gives rise to life-threatening symptoms. Adults who have been infected several times can become partly immune as their defence system gradually starts to recognise the parasite's proteins. When the placenta is formed, however, a new environment is introduced wi...

Increase in drug development for killer diseases is not enough

..., from the George Institute will be discussing the rise of drug development for neglected diseases and the...gs, vaccines and diagnostics) is simply due to the rise of PPPs. Matlin also stresses the rise of a group of 'innovating developing countries' (IDCs) includ...

1 2 3 4 5 6 7 8 9 10