Categories
Environmental Pollution

Diesel pollution could harm heart

NEW YORK: A study by US researchers suggests that diesel fumes appear to raise the risk of heart disease in people with high cholesterol.

The researchers combined the pollutants and fats and cultured them with cells taken from the inner lining of human blood vessels. A few hours later, they extracted DNA from the cells for genetic analysis.

They showed that the genes that promote cellular inflammation had been activated, reported the online edition of the BBC news.

Next, they exposed mice with high cholesterol to the diesel particles and saw that some of the same genes were activated in the animals’ tissue.

The scientists, however, said they could not understand exactly how air pollutants cause cardiovascular injury.

“But we do know that these particles are coated with chemicals that damage tissue and cause inflammation of the nose and lungs” University of California, Los Angeles researcher André Nel said.

“Vascular inflammation in turn leads to cholesterol deposits and clogged arteries, which can give rise to blood clots that trigger heart attack or stroke,” Nel added.

Scientists said that the damaging particles in diesel fumes and the cholesterol act in combination to switch on genes that cause potentially dangerous inflammation of the blood vessels.

Their combination creates a dangerous synergy that wreaks cardiovascular havoc far beyond what’s caused by the diesel or cholesterol alone.

Source: The Times Of India

Categories
Positive thinking

The Best We Can Be

Honoring Our Children
Everything we do and say in the presence of our children makes an impression on them. We may think we can get away with swearing or gossiping in front of them when they can’t talk, but we have forgotten that just because they can’t talk doesn’t mean they don’t hear. They are sensitive sponges absorbing their environment in ways we will never know. Even if the words don’t make sense to them, they make an impression, as does the energy behind the words. We honor our children when we acknowledge that they are fully present from the very beginning and when we offer ourselves to them in ways that model the best of what humans can be.

When we bring a child into the world, a great welling up of love and hope fills our hearts. We unequivocally want the very best for our children, and we want to be the best parents a child could ever want. We begin to see ourselves and our lives in a different light, and things that seemed okay before we had a child suddenly reveal themselves as problematical. This can lead to a somewhat mincing review of our habits of speech, thought and feeling, our relationships, and our physical habits. We may feel that we have put ourselves under a microscope, which can be stressful. However, it can also lead to a great healing of our own unresolved issues and, in turn, it enables us to be good parents to our children. Talking to other conscious parents about this life transformation can be very helpful.

Our desire to become the best we can be is often strongest at the very beginning of a child’s life and sometimes loses its intensity as we grow accustomed to their presence. However, it is never too late to look at ourselves and notice whether we are offering our best to our children. That original welling up of love and hope can inspire us throughout our lives to be the best we can be.

Source:Daily Om

Categories
News on Health & Science

Bio therapies good for bowel disease

WASHINGTON: A new study has found that the use of biologic agents for the treatment of inflammatory bowel disease (IBD) may benefit patients.

However, researchers warn that doctors need to consider the potential associated side effects in determining treatment course.

IBD includes Crohn’s disease and ulcerative colitis, both frequently disabling diseases.

The study was conducted by a team of researchers led by Stephen B. Hanauer, at the University of Chicago, and Paul Rutgeerts at University Hospital Gasthuisberg, Belgium.

As part of the study, researchers examined the literature on monoclonal antibodies or antibody fragments currently approved by the FDA or likely to be approved in the near future to study the side effects of biologic agents.

Researchers found that that for patients in whom traditional therapies do not work, through traditional ‘step up’ or sequential treatment approach biologics might be appropriate as a first line treatment. However, IBD is a heterogeneous disease and some patients may not respond to biologics, so the appropriate role of these agents in the treatment paradigm is the subject of much discussion.

The study noted that in determining the appropriate course of treatment, gastroenterologists needed to balance the potential complications of drug treatment (including increased risk for infections and cancer) against the consequences of potential under-treatment of their patients’ disease (including poor quality-of-life, complications of disease, and the costs associated with active disease and the treatment of complications).

“Biologic therapies provide new options and hope for many patients, however they may be accompanied by serious side effects, both when used alone or in combination with other treatments. Gastroenterologists need to review and consider the side effects and significant costs when determining the best treatment course for their patients,” Hanauer said.

The findings of the study were published in the July issue of Gastroenterology, the official journal of the American Gastroenterological Association (AGA) Institute

Source: The Times Of India

Categories
News on Health & Science

Exposure to sun reduces MS risks

WASHINGTON: Spending time in out in the sun in childhood is really a good thing, for a new study has found that it can lower the risk of developing Multiple Sclerosis (MS) in later life.

The study was conducted by Talat Islam, MBBS, PhD, and Thomas Mack, MD, MPH, with the Keck School of Medicine of the University of Southern California in Los Angeles.

The researchers analysed 79 pairs of identical twins with the same genetic risk for MS in which only one twin had MS as a part of their study.

They asked the twins to specify whether they or their twin spent more time outdoors during hot days, cold days, and summer, and which one spent more time sun tanning, going to the beach and playing team sports as a child.

They found that the twin who spent more time out in the sun as a kid had had a 25 to 57 percent reduced risk of developing MS depending on the amount of time spent outdoors.

The researchers now state that sun exposure has a positive effect on MS.

“Sun exposure appears to have a protective effect against MS. Exposure to ultra violet rays may induce protection against MS by alternative mechanisms, either directly by altering the cellular immune response or indirectly by producing immunoactive vitamin D,” they state.

“Our findings note the importance of sun exposure among people with identical genetic risk for MS. High priority should be given to research into how sun exposure reduces MS risk if we are to unravel the mystery of what causes MS,” Dr Mack added.

The study is published in the July 24, 2007, issue of Neurology , the medical journal of the American Academy of Neurology.

Categories
WHY CORNER

Why Does Banana Skin Turn Black ?

A banana skin turn black after a few days, even when the banana is kept in the refrigerator.

click to see….>...(1).…..(2)….

The reason behind it is that the green skin of banana contains a gaseous plant hormone, ethylene, which diffuses into the fruit and hastens the process of ripening. It is yellow when the fruit is ripe and turns black with the production of more and more ethylene. The large number of enzymes of Kreb’s cycle convert citric acid, mallic acid and oxalic acid into glucose in a banana, to make it sweet during the process of ripening. When the banana is kept in the refrigerator, the enzymatic reactions are stopped by the cold but the production of ethylene hormone continues.
This turns its skin black.But food value of banana does not change unless it is decomposed.

Enhanced by Zemanta
css.php