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Tag: "proper" at biology news

Guiding principles for facial transplantation unveiled

...nformed consent; patient psychological evaluation; proper institutional oversight; and the ethics of the procedure. ...

There's something fishy about human brain evolution

...id: docosahexaenoic acid (DHA). DHA is critical to proper neuron function. Human baby fat provides both an energy source for the rapidly growing infant grey matter, and also, says Dr. Cunnane, a greater concentration of DHA per pound than at any other time in life. Aquatic foods are also rich in iodine, a ...

Cholesterol gets 'thumbs up' for role in digit development

...les in patterning the developing embryo, including proper digit patterning. Chiang led the early studies showing that mice without Sonic hedgehog developed only a single digit â? a thumb on the front paw (or a "big toe"on the back paw). The Sonic hedgehog protein is produced by a specialized group of ce...

Aspirin reduces cardiovascular risks in men and women -- but differently

...ys of reducing cardiovascular risks, such eating a proper diet and exercising." Of the six randomized clinical trials involved in the analysis, three enrolled solely men, one included only women, and two enrolled both sexes. The trials were: Physicians Health Study, British Doctor's Trial, Thrombosis Preve...

Front-line immune cells mature in four stages, study shows

...ated cells of each stage and showed that under the proper conditions, stage-1 progenitor cells matured into stage-2 NK cells, and that these cells matured into stage-3 cells and stage-4 cells, with the hallmarks and cell-killing capacity of mature NK cells. The researchers are now working to gain a detail...

Less is more, gene study shows

..., must constantly be turned up or down to give the proper response. "It's a delicate balance---you don't want it too strong or too weak." The normal function of CASPASE12 is to keep the response from being too strong, and that probably served humans well at one time. But then, "during human evolution, eithe...

Scientists discover basic defect in cystic fibrosis airway glands

...(CFTR), a membrane channel regulator essential for proper salt and water movement across some epithelia. Currently, there are two essentially opposite explanations for the inability of the body to clear mucus from the airways in cystic fibrosis. The first is that the defective CFTR is unable to aid in flu...

Salmonella caught red-handed

...ulty for developers of antibiotics is choosing the proper point of attack against bacteria. There are hundreds of possible points of attack, according to genome analysis and laboratory culture experiments ?but validation in in vivo infection models is largely lacking. Infection biologists and proteomics r...

Patients now surviving once-fatal immune disease

...ised at how well these patients are doing with the proper care." XLA is a rare disease that is inherited t...ective the ability of such patients to thrive with proper care, despite this potentially devastating disease." Forty of the 41 patients were receiving intra...

Findings advance use of adult stem cells for replacement bone

... upon the idea of having the stem cells create the proper growth medium themselves. The group, which included graduate student Quynh Pham and postdoctoral research associate Upma Sharma, accomplished this by seeding discs of titanium mesh with stem cells and encouraging them to form extracellular matrix, or...

Stanford/Packard scientist's data-mining technique strikes genetic gold

... software now that will help scientists assign the proper concepts to each experiment." Microarray experiments allow researchers to compare the expression patterns of tens of thousands of individual genes over time in diseased and healthy cells, or in many other experimental conditions. Each experiment gen...

UF researchers develop ways to keep the bloom on the rose

...etailers also need to understand the importance of proper treatment and sanitary conditions. Consumers can extend vase life by two to three days by using properly mixed commercial flower foods. Using clean, sanitized containers will help to keep all cut flowers fresh longer. Additionally, Nell and his rese...

New insights into neural tube defects

...o migrate to the midline where they are needed for proper neural tube development. The report in Nature is the first to demonstrate that the polarity is restored to the daughter cells after rather than during cell division and to provide the specific molecules involved in restoring polarity. After cell...

Alzheimer's study first to explain death of brain cells

... harmfully with biological materials essential for proper brain function such as serotonin and L-DOPA. Dr. Atamna believes that the combination of functional heme deficiency, which harms mitochondria needed to produce energy, together with the increase in oxidative damage caused by the peroxidase, is what e...

Rice University researchers create 'nanorice'

... harmfully with biological materials essential for proper brain function such as serotonin and L-DOPA. Dr. Atamna believes that the combination of functional heme deficiency, which harms mitochondria needed to produce energy, together with the increase in oxidative damage caused by the peroxidase, is what e...

Illegal trade is propelling rare turtle toward extinction, new report

...d turtles should not be purchased unless they have proper permits and documentation. Without strict enforcement of these laws the turtle will have no future in the wild." The turtle, whose scientific name is Chelodina mccordi, is a small, odd-looking creature prized by collectors, with a long neck that ex...

Study fishes out new role for prostaglandins

...ssue precursors inside the embryo and gives them a proper shape." But little is known about the chemical si...hronizes or orchestrates a myriad of events in the proper sequence (lots of trains)," said Solnica-Krezel, "and sometimes one train wreck can halt the entire ...

Thinner and younger

...calories low and to insure that people consume the proper balance of nutrients. Some people from a group called the Calorie Restriction Society are devoted to limiting their caloric intake in hopes of improving their health and extending their lives. Society members, who call themselves CRONies (Calorie Res...

Malignant melanoma cells secrete protein required for embryo formation

...cells secrete Nodal, a protein that is critical to proper embryo formation. An article describing this research was published today in the advanced online issue of the journal Nature Medicine. The researchers identified the potent and highly unstable embryonic growth factor by injecting aggressive melano...

Progress being made in exploring potential use of stem cells to treat heart disease

...l fates Developing methods for safe delivery and proper integration of stem cells within patients' heart tissue to avoid such complications as arrhythmias (irregular heart beat) Solving immunological issues surrounding rejection "Exciting new findings over the past 5 years indicate that stem cells cou...

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