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Cell Biology

Could Germ Toxicity Be an Environmental Effect?
June 15, 2007
Listeria becomes nasty when starved of oxygen, reported EurekAlert.  “Limiting oxygen produces bacteria up to 100 times more invasive than similar bacteria grown with ample oxygen supplies.” Could this imply that a world with different atmospheric or soil conditions could have been less prone to disease?  Could the bacteria we fear most have been placid […]
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Health

Take a Walk in the Biodiversity Park
May 16, 2007
A walk in the park is good for your spirit.  That much we already knew.  Researchers at the University of Sheffield now claim, though, that the more biodiversity in the park, the better: “Dr Richard Fuller and colleagues from the University’s Department of Animal and Plant Sciences, and De Montfort University in Leicester, have been […]
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Education

Human Adaptation Can Be Rapid
April 25, 2007
How long does it take for humans to adapt to environmental changes?  Some recent papers investigated this question. Paleface:  If it is assumed that humans started out medium or dark-skinned, how long did it take for Europeans to lose much of that original pigment?  An article in Science April 20 says maybe just 6,000 to […]
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Health

Dirt for Physical and Mental Health
April 11, 2007
Live Science has an article suggesting that exposure to dirt can improve your mood by boosting the immune system.  This is an unexpected twist on the “hygiene hypothesis” that childhood exposure to dirt and animals helps innoculate the body to certain diseases (see 08/02/2006).  Certain bacteria might not only boost the immune system, but also […]
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Health

Adult Stem Cells Form Heart Valve
April 4, 2007
The BBC News reported that part of a heart valve was grown from stem cells.  The article did not state till halfway down the page that the feat was achieved with adult stem cells, not embryonic stem cells. Everybody knows that the big battle over stem cells revolves around the ethics of using human embryos […]
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Health

Lunar Dust Is Deadly
March 22, 2007
A significant fraction of lunar dust could pose deadly risks to future astronauts stationed on the moon, a BBC News report says.  About 1-3% of moon dust particles are too small to be coughed up or removed by the cilia lining the respiratory tract.  These would lodge in the lungs and become inflamed.  As in […]
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Bible and Theology

Have Scientists Found the Secret of Aging?
March 17, 2007
There’s a tragic disease that speeds up aging.  Known as progeria (Huntington-Gilford progeria syndrome, HGPS), it is caused by a single point mutation in exon 11 of the NMLA gene.  Children afflicted with this disease look old beyond their years and often die at 13 of heart attack and stroke – essentially, of old age. […]
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Health

Skin Includes Built-In Damage Protection
March 11, 2007
Ultraviolet radiation that tans skin can also cause skin cancer, right?  Right, but the skin also produces a cancer fighter to come to the rescue, reported EurekAlert.  Scientists at the Dana-Farber cancer institute detected a known cancer fighter named p53 that is produced right under the skin.  Their results, published in Cell (see summary on […]
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Health

3 Out of 5 Doctors – Leaves 2
February 28, 2007
Every once in awhile it’s good to be reminded that yesterday’s nutritional advice can be wrong.  We need to beware of simplistic approaches to health.  For instance, the cliches “If a little is good, more is better” or “it worked for me” can be deadly.  TV commercials are filled with glowing promises for this or […]
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Amazing Facts

Your Body Knows Its Allies at Gut Level
January 24, 2007
How come your body doesn’t fight its good bacteria?  It sounds like a question only a scientist or a kid would ask, but think about it.  Your body jumps to arms to fight off pathogens, but lets millions of bacteria live in the intestines.  These bacteria help you digest your food, but are not “you.”  […]
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Health

Are Embryonic Stem Cells a Stepping Stone to Eugenics?
December 16, 2006
In Paris, according to Science Dec. 8, “One cherished French institution has attacked another in a bruising battle over embryonic stem cell research.”  The cause of the “Jeremiad” as Science dubbed it, was a Catholic Archbishop’s statement to a French health institute that any research “instrumentalizes the embryo or borders on eugenics.”  The “News of […]
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Bible and Theology

Experiment: Take a Darwinist to Church
December 11, 2006
“Go to church and breathe easier,” announced an unusual entry on EurekAlert.  A study at Temple University found a positive correlation between religious activity and lung function.  They said that “religious activity is emerging as a potential health promoting factor, especially among the elderly.”  In addition, “going to church provides social contact and emotional support, […]
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Health

How Stem Cell Reporting Can Blur Ethics
December 2, 2006
“The potential of stem-cell technologies to revolutionize medical care is causing great excitement among biologists and the general public,” Nature reported Nov 30.1  “ Recent studies on embryonic and adult stem cells, coupled with advances in our understanding of how they can be coaxed into forming particular cell types and tissues, have improved the prospects […]
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Amazing Facts

Take Your Flu Pill: Vitamin D
November 21, 2006
Vitamin D may be a multi-purpose germ fighter.  An article by Janet Roloff in Science News1 gathered evidence from several research labs that strongly suggests this molecule triggers the formation of one of the body’s effective antiviral, antibacterial, antifungal agents: cathelicidin.  In its activated form, vitamin D binds to a short section of DNA called […]
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Health

Stem Cells: Hurry Up and Wait
October 13, 2006
When will embryonic stem cells produce cures for Parkinson’s disease, multiple sclerosis, paralysis and other maladies these wonder-cells were promised to bring?  Be prepared to wait.  If predictions of leading proponents are accurate, and if California is to be a world leader in stem cell research and clinical trials, even Christopher Reeve would have died […]
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