Tag: "organs" at biology news

A wandering eye

... model of the process and suggests that also other organs might be formed by the movement of single cells ra...brain cells into the other direction. Many other organs are thought to form when sheets of nearby cells expand to form new shapes. The current study suggest...

Microcapsules open in tumor cells

...ost helpful when they directly affect the diseased organs or cells - for example, tumour cells. Scientists at the Max Planck Institute of Colloids and Interfaces in Potsdam, Germany, and Ludwig-Maximilian-University in Munich, have come one step closer to that goal: they have intentionally released a substa...

Contagious cancer in dogs confirmed; origins traced to wolves centuries ago

...those with AIDS. In humans, occult tumors in donor organs have been known to emerge on rare occasions in immunosuppressed transplant recipients, Weiss noted. ...

Genetic snooze button governs timing of spring flowers

...ns for agriculture. Flowers are the reproductive organs of plants and are responsible for forming seeds and fruit. As their name implies, biennials complete their life cycles in two years, germinating, growing and overwintering the first year. The second year, the plants flower in the spring and die back...

Unmasking nutrition's role in genes and birth defects

...w they are pregnant, the development of the fetus' organs is essentially complete," said Bryce Mendelsohn, co-author and an M.D./Ph.D. student in the Medical Scientist Training Program at Washington University School of Medicine. "Since we currently do not understand the interaction between genetics and nut...

How the adrenal 'clock' keeps the body in synch

...clock in the brain and subordinate clocks found in organs throughout the body coordinate daily, or circadian, rhythms of behavior and physiology. Now, researchers reporting in the August Cell Metabolism, published by Cell Press, have elucidated the role of clocks of the adrenal glands in keeping those physi...

Snakes' virtual glasses, leopard spots and all-optical transistors

...avities near their snouts known as pit organs. The organs are sensitive to the infrared radiation emitted by... and Samuel L. Jackson. An optical analysis of pit organs suggests that snakes shouldn't be able to use the organ to track prey very well because the pit aper...

JCI table of contents: August 1, 2006

...(CB1, CB2) which are found in the brain and other organs including sperm, eggs, and newly formed embryos. Normally, these 2 receptors are activated by the naturally occurring signaling molecule anandamide. Anandamide formation by the enzyme NAPE-PLD is carefully balanced with its degradation by the enzyme ...

Transmission rates of vCJD

...resent in protein extracts of the shell and in all organs that are lined by cuticular tissues. We suggest that the SIPC is produced by the epidermal cells that produce the cuticle and discuss these observations with regard to earlier studies and the role of SIPC as a contact pheromone. Contact: Professo...

Marijuana use causes early pregnancy failure

...(CB1, CB2) which are found in the brain and other organs including sperm, eggs, and newly formed embryos. Normally, these 2 receptors are activated by the naturally occurring signaling molecule anandamide. Anandamide formation by the enzyme NAPE-PLD is carefully balanced with its degradation by the enzyme ...

Role of protein in immune response may aid HIV research

...Medicine Northwest scientists report that various organs mount different defensive responses with PGLYRP when exposed to bacteria. The skin produces these proteins only when exposed to virulent or high numbers of bacteria. In contrast, the liver, whose function is to continuously monitor the blood and f...

Early treatment prevents lasting breathing problems in some premature babies

... is used to help them breathe and to protect other organs such as the brain, heart, liver, and kidneys from damage while the lungs have a chance to mature. However, high levels of extra oxygen or prolonged use of ventilators can damage the lungs and interrupt normal development, leading to a chronic lung...

UCLA researchers transform stem cells found in human fat into smooth muscle cells

..., which help the normal function of a multitude of organs like the intestine, bladder and arteries. The stu...found within the human body in the walls of hollow organs like blood vessels, bladder, and intestines and contract and expand to help transport blood, urine, ...

Heart has enough oxygen to survive hypothermia, CPR crucial

...t hypothermia had on the heart, not on other vital organs such as the brain -- is a step in that direction. ...the brain, heart and kidneys, but not to non-vital organs such as the muscles, skin and periphery. When hypothermia victims arrive in the emergency room, th...

HO-1 in sickle cell disease: friend or foe?

...d flow leading to pain, stroke, and damage to most organs including the lungs, spleen, kidneys and liver. The mechanisms underlying SCD-associated kidney disease include various forms of secondary stress, such as changes in internal kidney blood flow, induction of oxidative injury, and influx of inflamma...

Mutations point the way to new leukemia drugs

...hift to the spleen and liver. Eventually those two organs become grossly enlarged; the end result is death. Thus, the JAK2 pathway is an important player in leukemia. Levine, Pikman, and Gilliland's new work shows that the pathway can be activated without a mutation in the JAK2 gene itself. The new mutati...

BACS breathes perception into robots

...rocesses like this work because the brain, sensory organs and nerve pathways are able to pick up stimuli and process them. The ability to classify things (categorization) appears to be a fundamental characteristic of human intelligence, and one that gives robots a real "headache". In situations in which a r...

Natural vitamin E tocotrienol reaches blood at protective levels

...suggested that TCT, if eaten, cannot be carried to organs because the protein known as tocopherol transfer protein (TTP), which delivers TCP throughout the body, doesn't transport TCT very well. "Our results demonstrate that TCT is efficiently delivered to the bloodstream despite the fact that the transf...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...m inside the body--provides a visual navigation of organs oftentimes portrayed on television crime shows lik...on provides unique views of the body that internal organs typically impede," said Quon. "Our new imaging and processing protocol can peel away the organs, hig...

UCLA study finds same genes act differently in males and females

... thousands of genes behave differently in the same organs of males and females something never detected to this degree. Published in the August issue of Genome Research, the study sheds light on why the same disease often strikes males and females differently, and why the genders may respond differently t...

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