Cell Biology - Page 2 of 28
Saturday 18 April, 2015

Loneliness impacts DNA repair: The long and the short of telomeres

Caption: Lonley parrots have shorter telomeres than those living in groups.

Credit: Denise Aydinonat

Scientists at the Vetmeduni Vienna examined the telomere length of captive African grey parrots.  More...

by BioNews | Published 1 year ago
noncoding RNA
By BioNews On Saturday, April 5th, 2014
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Some long non-coding RNAs are conventional after all

Researchers have come full circle and predicted that some long non-coding RNAs can give rise to small proteins that have biological  More...

By BioNews On Saturday, March 29th, 2014
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Beware! Anti-aging hormones may have opposite effect

Do you take anti-aging pills or injections in a quest to replenish youthful hormones to immortalise yourself  More...

Screen Shot 2013-10-07 at 8.20.32 AM
By BioNews On Monday, October 7th, 2013
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2 Americans and a German win 2013 Nobel medicine prize

The 2013 Nobel Prize honours three scientists who have solved the mystery of how the cell organizes its transport system. Each cell is a factory that produces and exports molecules. For instance, insulin is manufactured More...

brown-adipocytes-in-white-adipose
By IANS On Sunday, April 28th, 2013
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Researchers converted bad fat to good fat

Scientists from ETH Zurich have shown for the first time that brown and white fat cells in a living organism can be converted from one cell type to the other. Their work, using mice as a model organism, provides More...

tileshop (1)
By BioNews On Tuesday, November 13th, 2012
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Scientists determine how hepatitis B&D enter liver cells

Liver diseases related to the human hepatitis B virus (HBV) kill about 1 million people every year  More...

The binding of Sonig Hedgehog (Shh) to its receptor Patched (Ptch) causes the activation of Smo. In the previously known canonical pathways Smo in turn regulates gene expression via Gli transcription factors. In the newly discovered pathway, the activation triggers the influx of calcium and leads to the activation of various calcium-dependent enzymes, such as the calmodulin kinase (Camkk2), AMP-activated kinase (Ampk) and liver kinase B1 (Lkb1). This signalling pathway can also be specifically activated by agents such as cylcopamine. Both signal pathways change the metabolisms of muscle and brown fat cells, enabling them to rapidly absorb and utilise large quantities of glucose.
© Art For Science, Image courtesy: Max-Planck-Gesellschaft
By BioNews On Saturday, October 13th, 2012
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Cells control energy metabolism via hedgehog signalling pathway

Scientists discover novel diabetes and obesity therapy, and potential  More...

Researchers at ASU and UA have discovered that regenerated lizard tails are quite different from original tails. Pictured here: Green anole male with a regenerated tail (brown region).
By BioNews On Tuesday, October 9th, 2012
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Researchers Discover Regenerated Lizard Tails Are Different From Originals

Just because a lizard can grow back its tail, doesn’t mean it will be exactly the same  More...

Scientists Find Missing Link Between Players in the Epigenetic Code
By BioNews On Sunday, September 30th, 2012
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Scientists Find Missing Link Between Players in the Epigenetic Code

Over the last two decades, scientists have come to understand that the genetic code held within DNA  More...

muscle_structure
By BioNews On Thursday, September 27th, 2012
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Scientists find way of reversing muscle waste in attempt to combat ageing

A key factor which slows down muscle repair during ageing can also be reversed  More...