Tag: "bonds" at medical news

Selective coatings create biological sensors from carbon nanotubes

...the new surface chemistry, Strano said, is that no bonds are broken on the nanotube. "This allows us to shuttle electrons in and out without damaging the nanotube itself." Another important aspect is that the technique can be extended to many other chemical systems. "We've shown that it is possibl...

Employment reduces chronic drug use, UH professors find

... reduce the potential for drug use, such as strong bonds within a family network, school, work or religious organization, as well as adoption of conventional norms about drug use. Risk factors make the potential for drug use more likely and include poor academic and career achievement, shy, aggressive and...

Mothers have brains primed for care

...in parenting and the effects of disruptions to the bonds created between parents and children is vitally important," says Bruce McEwen, PhD, of Rockefeller University. "It directly influences all individuals, and has an effect on society interrupted parental bonding can cause behavioral problems in school...

UCL study establishes common biological ground for maternal and romantic love in humans

... social assessment and negative emotions, while it bonds individuals through the involvement of the reward circuitry (regions in the brain that induce euphoric feelings), explaining the power of love to motivate and exhilerate."...

Intergenerational program has benefits for children, older adults

...ough Kansas State University is designed to create bonds between children and older adults throughout the state of Kansas. And the evaluations of that program are showing that these interactions are valuable and meaningful to all involved. Bronwyn Fees, an assistant professor in the School of Family Studie...

Mayo Clinic researchers discover how key cancer protein works

...se drug interventions that exploit phosphorylation bonds between key proteins. In this way, they could therapeutically regulate the cell cycle....

Rejection really hurts, UCLA psychologists find

...y have evolved because of the importance of social bonds for the survival of most mammals. "Going back 50,0...alarm may be a signal for us to reestablish social bonds before harm befalls us." "These findings show how deeply rooted our need is for social connection," ...

Trans fatty acids: What are they and why shouldn't you eat them?

...urated fats are partially hydrogenated, the double bonds are rearranged, converting some to the trans configuration and shifting the double bonds along the chain. Unfortunately, this newly created trans fatty acid is an artery-clogger. Amid the ...

Lens replacement material holds prospect of 'young' eyes for people over 40

...the research group is using to form the reversible bonds acrylamide is a known neurotoxin, but Fetsch doesn't think that will be a problem because the acrylamide is polymerized. "It sounds ludicrous to put [acrylamide] in the body, but the idea is that polyacrylamide when it's in long chains is not toxic...

Physicians' emotional responses to patients' deaths increase with care length, says Pitt

...rise over the death of a patient. "Physicians form bonds with their patients, and when a patient dies, the physician is going to have some emotions surface," said investigator and senior author Robert M. Arnold, M.D., the Leo H. Criep Chair in Patient Care, professor of medicine and chief of the Section of...

Bonds strengthened on mechanically linked molecules

...rginia Tech graduate student has improved upon the bonds that control various shapes and has created a less...designed by a host of scientists, the non-covalent bonds that form the structure can be reversed to release the contents. Feihe Huang, a doctoral student at ...

Chemists create synthetic cytochromes

...ld very tightly in heme proteins, most commonly by bonds between the iron ion and the amino acid histidine," said Suslick, a William H. and Janet Lycan Professor of Chemistry at Illinois. "This bond is much stronger in proteins than it is for a heme binding free histidine. This makes cytochromes among th...

From married woman to independent widow

... are widowed is characterised by three stages: the bonds with the former status of married women which continue; the passage of time; and finally personal growth. The researchers interviewed women between 55 and 95 years of age who had been widowed for varying periods. They found most widows reported a dee...

Peer pressure matters in young adults smoking decisions

...ess, substance abuse and problem behaviors, social bonds (at school and with family and peers) and perceived health status. "Although many of these variables had been investigated as possible predictors of quitting among adolescents in previous research, the goal of this study was to determine whether thes...

Biomolecule studied for medical uses

...ement, Grinstaff's team makes additional molecular bonds by freeing some glycerol to interact with acid in an "esterification" reaction. Meanwhile, the rest of the alcohol is kept under chemical lock and key. After more alcohol is freed through a "deprotection" reaction, the next esterification reaction pr...

Wayne State chemist wins national award for new ways to make nature's molecules

...ion sequence. Montgomery aims instead to make many bonds at once, jumping from building blocks to complex molecules in a single efficient step.So we bring together lots of starting materials, and the trick is to control what reacts with what and where and when, he said. Key to his designs are catalysts, th...

Science, engineering and technology newstips

... and composition of magnesium diboride makes these bonds act as if they were metallic bonds. These metallic bonds contribute to the superconductivity of magnesium diboride. "We need to look at more layered materia...

South Pasadena chemist wins national award for designing new catalysts

...g to find new ways to put the carbon-carbon double bonds wherever we want. These are useful starting materials to later add functional groups to them," with the precision the drug industry requires. Grubbs said he didn't set out to become a laboratory chemist originally. "I went to college to be an agricul...

UIC chemists synthesize potent anticancer compound

...ned. "Building a molecule in a flask with all the bonds and specific configurations found in nature is as hard as building a space shuttle," Ghosh said. "We needed to preserve the stereochemistry at nine centers, maintain the cis configuration of six olefin bonds, and protect the epoxide and ester functio...

Experimental drug reverses effects of Fabry disease in mice

...ls that use enzymes to dissolve specific molecular bonds and digest waste products. Without alpha-galactosidase A, lysosomes cannot break up one particular type of glycolipid, a long chain of fats and sugars found in cell membranes. As a result, these molecules accumulate within the kidneys, hearts and bl...

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(Date:4/23/2014)... of endogenous neural precursor cells cannot alone compensate ... the perspective of neural plasticity, Dr. Yun Xiang ... observed the effects of functional electrical stimulation treatment ... of basic fibroblast growth factor and epidermal growth ... side. The researchers found that functional electrical stimulation ...
(Date:4/22/2014)... (Chicago) A recently FDA-approved device has been shown ... as much as 50 percent. When coupled with an ... Rush, the device facilitated the complete elimination of seizures ... in the decade-long clinical trials. , That,s good news ... in the U.S. living with epilepsy whose seizures can,t ...
(Date:4/22/2014)... all lung cancers are small cell lung cancers ... to chemotherapy. However, researchers at Virginia Commonwealth University ... the mechanisms leading to this resistance that may ... primarily by mediating B-cell lymphoma 2 (Bcl-2) family ... Depending on their function, this family of proteins ...
(Date:4/22/2014)... Hopkins scientists have found a way to block abnormal ... of atherosclerosis, the main cause of heart attacks and ... The condition develops when fat builds inside blood vessels ... greatly reducing their ability to feed oxygen-rich blood to ... series of experiments, described April 7 in the journal ...
(Date:4/22/2014)... massive health care spending, a new RAND study concludes ... incentivize pharmaceutical companies and device makers to develop products ... medical technologies and their use, a new study suggests ... medical devices get created in the first place. The ... as little loss of health as possible and to ...
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