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Latest Reactive oxygen species Stories

2011-11-11 01:20:16

Study of hereditary Parkinson's finds that mitochondria can't be cleared out when damaged Current thinking about Parkinson's disease is that it's a disorder of mitochondria, the energy-producing organelles inside cells, causing neurons in the brain's substantia nigra to die or become impaired. A study from Children's Hospital Boston now shows that genetic mutations causing a hereditary form of Parkinson's disease cause mitochondria to run amok inside the cell, leaving the cell without a...

2011-11-04 23:00:27

New findings suggest that activation of the PKM2 enzyme may sensitize cancer cells to oxidative stress It has long been known that cancer cells use nutrients differently than normal cells. In recent years, the rapidly reemerging field of cancer metabolism has shed new light on the ways that cancers use glucose to grow and thrive, demonstrating that manipulation of an enzyme called PKM2 is important to this metabolic process. Now a new study led by a scientific team at Beth Israel...

2011-08-24 17:20:43

Cardiologists who perform heart operations using x-ray guided catheters are exposed to ionizing radiation at levels two to three times higher per year than those experienced by radiologists. Now, new research has found the first evidence that these constant, high levels of exposure cause changes at cell level that might represent the body's way of protecting itself against the harmful effects of radiation. The research, published online today in the European Heart Journal, found that among...

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2011-05-31 06:10:00

In addition to its damaging effect on the environment and its illegal smuggling into developing countries, researchers have now linked e-waste to adverse effects on human health, such as inflammation and oxidative stress "“ precursors to cardiovascular disease, DNA damage and possibly cancer. In a study published today, Tuesday 31 May, in IOP Publishing's journal Environmental Research Letters, researchers took air samples from one of the largest e-waste dismantling areas in China and...

2011-05-20 13:02:11

Bitter cumin is used extensively in traditional medicine to treat a range of diseases from vitiligo to hyperglycemia. It is considered to be antiparasitic and antimicrobial and science has backed up claims of its use to reduce fever or as a painkiller. New research published in BioMedCentral's open access journal BMC Complementary and Alternative Medicine shows that this humble spice also contains high levels of antioxidants. Reactive oxygen species (ROS), also known as free radicals, are...

2011-04-28 15:11:46

An individual's personality can have a big effect on their life. Some people are outgoing and gregarious while others find novel situations stressful which can be detrimental to their health and wellbeing. Increasingly, scientists are discovering that animals are no different. A new study led by Dr Kathryn Arnold, of the Environment Department at the University of York has added important experimental evidence showing that animal personalities are reflected in their oxidative stress profiles....

2011-03-18 06:45:00

BEVERLY HILLS, Calif., March 18, 2011 /PRNewswire/ -- OXIS International, Inc., (OTC Bulletin Board: OXIS; Paris: OXI) will be conducting a conference call and webcast with investors on Tuesday, March 22, 2011 at 11:00 a.m. Eastern (8:00 a.m. Pacific). During the call Anthony Cataldo, Chief Executive Officer, and Bernie Landes, President, will review significant business developments, discuss the Company's growth strategy, and take questions from call attendees. Individuals interested in...

2011-03-10 07:00:00

BEVERLY HILLS, Calif., March 10, 2011 /PRNewswire/ -- OXIS International, Inc., (OTC Bulletin Board: OXIS; Paris: OXI) today announced that it will hold a conference call with investors on Tuesday, March 22, 2011 at 11:00 a.m. Eastern (8:00 a.m. Pacific). During the call Anthony Cataldo, Chief Executive Officer, and Bernie Landes, President, will review significant business developments, discuss the Company's growth strategy, and take questions from call attendees. Individuals...

2011-02-14 07:00:00

BEVERLY HILLS, Calif., Feb. 14, 2011 /PRNewswire/ -- OXIS International, Inc., (OTC Bulletin Board: OXIS; Paris: OXI) today announced that Anthony Cataldo, Chief Executive Officer, and Bernie Landes, President, will present to investors as part of the Lippert/Heilshorn & Associates Life Sciences & Medical Technologies On-Line Forum on Thursday, February 17, 2011 at 12:30 p.m. Eastern (9:30 a.m. Pacific). A webcast of the presentation will be accessible online on at the PrecisionIR...


Word of the Day
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
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