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Tag: "performed" at biology news

Key Trigger Of Opioid Withdrawal Symptoms Found

... Hospital (a division of the University of Sydney) performed biochemical studies on brain slices from mice that had been treated with morphine. Their objective was to understand what happens to a particular region of the midbrain--called the periaqueductal gray (PAG)--known to be involved in such withdrawal sy...

Scientists find fossil proof of Egypt's ancient climate

... environment into a classic savannah." Kieniewicz performed isotopic analyses of about 20 snails, all of them dating to the humid phase, which occurred approximately 130,000 years ago. These particular snails have a life span of between one and two years, and build their shells in a classic spiral with whatev...

Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments

...0 angioplasties and coronary bypass procedures are performed each year in those patients who do not benefit from medication. ...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...ate. Rush principal investigator Dr. John Pollack performed the surgeries with Dr. Kirk Packo, Dr. Pauline Mer...d the ASR chip implant. The current study is being performed at these study centers in order to independently validate previous studies performed by Optobionics....

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

...es within the cells of various tissues. They first performed MRS on 14 healthy volunteers to measure cardiac CK flux at rest and with pharmaceutically induced stress to determine whether increased energy demand during stress increases the rate of ATP synthesis through CK. Then, 17 patients with histories of ...

Vascular structure and function improve with diet and exercise

...ements of the heart and blood vessels at rest were performed as well. Left ventricular diastolic filling (LVDF) measurements indicate the efficiency of the heart to relax. Left ventricular mass is a measure of end organ damage often following the onset of LVDF abnormalities. The brachial (arm) and carotid (n...

Ophthalmologists implant five patients with artificial silicon retina microchip

...ate. Rush principal investigator Dr. John Pollack performed the surgeries with Dr. Kirk Packo, Dr. Pauline Mer...d the ASR chip implant. The current study is being performed at these study centers in order to independently validate previous studies performed by Optobionics....

Artifical cornea lets woman blind 20 years see

...e commitment to follow up, the procedure is rarely performed in children. Many researchers credit Claes Dohlman, M.D., chairman emeritus of ophthalmology at Massachusetts Eye and Ear Infirmary and Harvard Medical School as a "father" of modern cornea science. Dohlman has developed the concept of one such kera...

Effective Cancer Treatments Follow The Clock

...kahashi. The initial experiments with normal mice, performed by Antoch during her tenure in Takahashi's lab, confirmed that animals treated with CY survived better when they received treatment in late afternoon than those whose treatments were initiated early in the morning. Antoch further extended these origi...

Surprising findings reported about iron overload

...ood test that could detect these conditions is not performed as part of routine medical exams," said Acton. Delaying treatment ?the weekly removal of a pint of blood by phlebotomy ?can permit the progressive accumulation of iron deposits in target organs that may result in complications such as cirrhosis of th...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...cs to pregnant women following surgical procedures performed on fetuses in utero. "Following such surgeries, wh...ere anesthetized prior to scanning. MRI scans were performed first, followed by PET. For the PET study, each animal was injected with a trace quantity of cocaine...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...Those previous tests showed that transgenic plants performed up to three times as well as wild plants in cleaning up selenium-polluted soil. "Field conditions involve a million different variables, from weather to soil conditions, so results can be radically different than those in the lab," said Norman Terry...

A human parasite with a streamlined mitochondrion

...obs than our own mitochondria. Further experiments performed by the team reveal that the Entamoeba carrier can only transport ADP and ATP, suggesting that it could fuel energy-requiring reactions within the mitosome but might not perform other functions. The work suggests that the Entamoeba mitosome may repres...

Researchers rein in regulatory RNAs

...Abe from the RIKEN BioResource Center in Japan has performed one of the most comprehensive genome-wide experimental analyses of sense-antisense transcripts to date. Their findings are published in the April issue of the journal Genome Research. Sense-antisense transcripts, or SATs, are pairs of RNA molecules ...

Alzheimer's cognitive decline slowed

...t safety and toxicity. The procedure was initially performed while patients were awake but lightly sedated, and...eral anesthesia and all subsequent procedures were performed without complication. Cognitive outcomes were assessed in the six patients who completed the NGF de...

Rare surgery performed to remove pancreas, prevent diabetes

In a 12-hour, dual-stage surgery known to be performed at only two other centers in the U.S., doctors at the University of Alabama at Birmingham on Tuesday returned a patient's own insulin-producing cells to him after surgically removing his pancreas to eliminate constant, severe pain from chronic pancre...

Small species back-up giant marsupial climate change extinction claim

...iversity of Technology (QUT) and Queensland Museum performed the first systematic analysis of a site in the fos...ssland. To verify their results carbon dating was performed on samples. And further work, due to be published later in the year, on other sites in the region co...

Nano-bumps could help repair clogged blood vessels

...ter said. Numerous surgeries involving stents are performed annually worldwide, with sales of "vascular biomaterials" adding up to more than $1 billion each year. The research has been funded by the National Science Foundation. Webster's lab is affiliated with the Birck Nanotechnology Center and the Bindley ...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

...asured subjects' overall brain activity while they performed working memory tasks. The second scan used a dopamine tracer to reveal the synthesis of the neurotransmitter in the midbrain. Frontal cortex activity increased as midbrain dopamine activity increased in subjects with val, but decreased in those who ...

New understanding of DNA repair may pave way to cancer treatments

...fere with detection of the ATF2 signal. Soon, work performed by Anindita Bhoumik confirmed that ATF2 is regulated by ATM and that this regulation is central to the cell's ability to initiate DNA repair processes following ionizing irradiation or other exposures that cause breaks in DNA. A likely way in which A...

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