Category Health/Medical

Potential New Therapy for Liver Diseases

illustration of diseased liver
Mechanical Stretch Increases Expression of CXCL1 in Liver Sinusoidal Endothelial Cells to Recruit Neutrophils, Generate Sinusoidal Microthombi, and Promote Portal HypertensionGastroenterology, 2019; DOI: 10.1053/j.gastro.2019.03.013

Drug therapy may effectively treat a potentially life-threatening condition associated with cirrhosis and other chronic liver diseases, according to a new study by Mayo Clinic researchers. The study was posted in March on Gastroenterology, the online journal of the American Gastroenterological Association. Print publication is scheduled for July.

While therapies have been available to treat some forms of liver disease, including hepatitis C and autoimmune hepatitis, options have been more limited for treating portal hypertension, a condition where th...

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High-fructose Corn Syrup boosts Intestinal Tumor Growth in Mice

Soft drink (stock image).
Credit: © Wissam Santina / Fotolia

Does sugar directly feed cancers, boosting their growth? The answer seems to be ‘Yes’ at least in mice according to a study led by researchers at Baylor College of Medicine and Weill Cornell Medicine. Their study, published in Science, showed that consuming a daily modest amount of high-fructose corn syrup – the equivalent of people drinking about 12 ounces of a sugar-sweetened beverage daily – accelerates the growth of intestinal tumors in mouse models of the disease, independently of obesity. The team also discovered the mechanism by which the consumption of sugary drinks can directly feed cancer growth, suggesting potential novel therapeutic strategies.

“An increasing number of observational studies have raised awareness ...

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Computer scientists Create Reprogrammable Molecular Computing System


Artist’s representation of a DNA computing system.
Credit: Caltech

Computer design meets potions class: A little of vial 1 and a little of vial 2 yield six-bit computations encoded in DNA. Computer scientists at Caltech have designed DNA molecules that can carry out reprogrammable computations, for the first time creating so-called algorithmic self-assembly in which the same “hardware” can be configured to run different “software.”

In a paper published in Nature on Feb XX, a team headed by Caltech’s Erik Winfree (PhD ’98), professor of computer science, computation and neural systems, and bioengineering, showed how the DNA computations could execute six-bit algorithms that perform simple tasks...

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Scientists Hunt down the Brain Circuit Responsible for Alcohol Cravings

Confocal analysis at 63x magnification, followed by the three-dimensional reconstruction of neuronal cell bodies and branches. The image shows an example of eYFP and CRF in the same neuron. This rendered isosurface analysis demonstrated the colocalization of CRF immunoreactivity within CeA neurons that also expressed Cre-dependent eYFP and validates the crh-Cre rat as a tool to gain more direct access to CRF neurons to study their functional neuroanatomy.
Credit: George lab

Study may open the door to developing drug therapies or even gene therapies for alcohol addiction. Scientists at Scripps Research have found that they can reverse the desire to drink in alcohol-dependent rats – with the flip of a switch...

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