Tag: "alkaloid" at biology news

Bloodroot alkaloid aids in exterminating sun-damaged skin cells in culture

...ells damaged by ultraviolet-B (UVB) radiation. The alkaloid also restricts skin cell production of other pro-p...h held here from October 16-20. Sanguinarine is an alkaloid present in the bloodroot plant, and is considered to have anti-bacterial, antifungal and anti-inflam...

Novel compounds show promise as safer, more potent insecticides

...alternative, researchers say. Ryanodine, a natural alkaloid discovered years ago in a species of tropical plant, has been used to study muscle physiology in a wide variety of organisms, including insects and mammals. Ryanodine receptors regulate muscle and nerve activities by modifying levels of internal calc...

Nectar is not a simple soft drink

...can also contain secondary metabolites such as the alkaloid nicotine and other toxic compounds. Scientists Danny Kessler and Ian Baldwin from the Max Planck Institute for Chemical Ecology in Jena, Germany, recently addressed the question, why would plants risk poisoning the insects and birds that provide poll...

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(Date:10/15/2014)... As our ability to assess the pandemic risk from ... developments, we must not allow ourselves to become complacent ... an international consortium of scientists. , Influenza pandemics arise ... have yet to develop widespread immunity – spreads in ... in the past 100 years, the worst of which ...
(Date:10/15/2014)... increased resistance to bacterial pneumonia in female mice to ... , Females are naturally more resistant to respiratory infections ... shown that increased resistance to bacterial pneumonia in female ... 3 (NOS3). They also show that this enzyme is ... hormone estrogen. , The team, lead by Professor Lester ...
(Date:10/14/2014)... thieves, prostate cancer tumors scavenge and hoard copper that ... avarice may be a fatal weakness. , Researchers ... prostate cancer cells by delivering a trove of copper ... cells brimming with the mineral, leaving non-cancer cells healthy. ... commercially available for other uses, could soon be tested ...
Breaking Biology News(10 mins):Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Prostate cancer's penchant for copper may be a fatal flaw 2
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