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Tag: "receives" at biology news

Keeping the body in sync -- The stability of cellular clocks

...ck genes. The oscillators work like this: the cell receives a signal from the master pacemaker in the hypothalamus, and then these clock genes respond by setting up concentration gradients that change in a periodic manner. The cell “interprets?these gradients and unleashes tissue-specific circadian responses....

Africa's first large-scale HIV vaccine study launches

..., neither volunteers nor researchers will know who receives the vaccine and who receives the placebo. The trial will last about four years. The trial has been approved by the South African ...

Robotic exoskeleton replaces muscle work

...ents so that the limb is moved by the brace, which receives its instructions from a computer. Such devices use repetition to help force a movement pattern. The U-M robotic exoskeleton works the opposite of these rehabilitation aids. In the U-M device, electrodes were attached to the wearer's leg and those ...

2 brains -- 1 thought

... dynamics of the neuronal activity. When the brain receives sensory input, calculates or remembers, it processes information encoded in a series of neuronal impulses in different nerve cells. Although no two people have the same brain, they can still share the same thought. Thus, only to a certain extent is t...

Rare cell prevents rampant brain activity

...as a kind of safety device. When a Martinotti cell receives signals above a certain frequency, it responds by sending back inhibitory signals that moderate surrounding pyramid cells. Gilad Silberberg, one of the researchers behind the study, believes that the mechanism is essential to understanding brain...

Hearts of male and female rainbow trout are different

...because the epicardium, much like the human heart, receives oxygenated blood via the coronary circulation. Conversely, the endocardium is supplied by only deoxygenated blood returning from the rest of the body. Not surprisingly, the authors expect there to be corresponding layer differences in energy producti...

Gene therapy delivery of nerve growth factors reverses erectile dysfunction in animal model

...rom surgery for prostate cancer. Even if a patient receives a nerve-sparing procedure during surgery, recovery from ED after radical prostatectomy may take a long time. In this study, which was led by Joseph C. Glorioso, III, Ph.D., chair of the department of biochemistry and molecular genetics, and Joel ...

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