your attention please....
குணம் நாடி குற்றம் நாடி அவற்றுள்
மிகை நாடி மிகக் கொளல்.”
IS INTENDED TO CREATE A BETTER AWARENESS OF HEALTH ISSUES AMONG PUBLIC .
Thursday, July 30, 2009
மூளையின் சின்னஞ்சிறு ரத்த நாளங்களில் அடைப்பு ஏற்படும்பொழுதோ அல்லது ரத்த நாளங்கள் உட்பகுதி தடிப்பதாலோ ரத்த ஓட்டம் தடைபட்டு, அதனால் உயிர் அணுக்கள் இறக்கும் வாய்ப்பும் அதன் காரணமாக உடலின் ஒரு பகுதி, கை, கால் அசைவற்று போவதையோ, முகத்தில் கோணல் அல்லது இறுக்கம், மரத்துப்போதல் ஏற்படுகிறது. நடப்பதில் சிரமம் ஏற்படுகிறது. ஒருபக்கமாக கால் போகிறது.
ஸ்ட்ரோக் ஒருவருக்கு வரப்போகிறது என்பதை அறிந்து கொள்ள இயலுமா என்றால், முடியும் என்கிறார்கள். மருத்துவகத்துக்கு உடனடியாக அவரை அழைத்துச்சென்று
ஒரு நரம்பியல் நிபுணரின் ஆலோசனை பெறவேண்டும்.
ஸ்ட்ரோக் ஒருவருக்கு உடனடியாக வர இருக்கிறதா என்பதை கண்டுபிடிக்க மூன்று எளிய சோதனைகள்.
உடலின் கை, கால், முகம் அசைவுகளில் மாற்றம் இருப்பின், அவரை
1. வாய் விட்டு சிரிக்கசொல்லுங்கள்.
2. கைகள் இரண்டையும் மேலே தூக்கச்சொல்லுங்கள். பின் பக்கவாட்டில் கொண்டு வந்து மறுமுறை மேலே தூக்கச்சொல்லுங்கள்.
3. எளிய வாக்கியம் ஒன்றைக் கொடுத்து படிக்கச் சொல்லுங்கள்.
இந்த மூன்றினையும் அவர் செய்வதில் சிரமங்கள் ஏதும் இல்லையென்றால் ஸ்ட்ரோக் வரும் அபாயம் உடனடியாக இல்லை.
இருப்பினும் உடனடியாக, அவரை மருத்துவர் கண்காணிப்புக் கொண்டு செல்லுங்கள்.
ஒரு ஆஸ்பிரின் மாத்திரை (குறைந்த அளவு ) உதவி செய்யும் என்றாலும் மேற்கொண்டு அதனைக் கொடுப்பதா
என்பதை மருத்துவர்களே முடிவு செய்ய வேண்டும்.
For further information on this, kindly log on to:
Wednesday, July 8, 2009
Versatile soy protein may lower bad fats floating in your bloodstream.
By R. Morgan Griffin
This is a
Reviewed by Brunilda Nazario, MD
PLEASE CLICK AT THE TITLE TO GET DIRECTLY INTO THE WEBSITE.
from the soybean, it's a staple of Asian diets. Yet it's largely been
the butt of jokes about hippies and vegans -- until recently. Today,
the buzz about soy is serious. Can it lower cholesterol naturally?
Some studies say yes. But, unfortunately, research shows mixed
results. We may not know the answer for years.
How Might Soy Protein Help?
A number of studies over the past decade seemed to show soy
protein could lower "bad" LDL cholesterol and triglycerides without
lowering "good" HDL cholesterol. Researchers aren't exactly sure how
soy protein might help. It could be a combination of the effect of the
protein and natural chemicals in soy called isoflavones. But in January
2006, the American Heart Association announced some surprising
news. A review of 22 clinical studies concluded that eating soy-based
foods has only minimal impact on cholesterol and other heart-disease
Until further research clears up the controversy, should you dump soy
from your diet? Not at all, says Tufts University nutrition researcher
Alice Lichtenstein, DSc, who helped write the AHA statement. "Soy
is a great food. It is low in saturated fat and it is a good-quality
protein," she says -- even if its heart benefits are less than
Conflicting Evidence on Soy
There have been many studies of the effects of soy on cholesterol.
One major article published in TheNew England Journal of Medicine
found that replacing animal protein with soy protein could lower levels
of total cholesterol, bad LDL cholesterol, and triglycerides. At the
same time, it didn't significantly lower levels of "good" HDL
Some studies have shown that soy protein, when eaten along with
other cholesterol-lowering foods, can have a big effect. In a study
published in the American Journal of Clinical Nutrition in 2005,
researchers tested cholesterol-lowering drugs against cholesterol-
lowering foods in a group of 34 adults with high cholesterol. People
ate 50 grams of soy protein daily along with other cholesterol-
lowering foods. The results were striking: the diet lowered cholesterol
levels about as well as cholesterol drugs.
However, not all studies agree. An analysis of various studies led by
the U.S. Agency for Healthcare Research and Quality found that soy
had a modest effect on cholesterol levels. Researchers found that
eating a high amount of soy -- equal to about a pound of tofu a day
-- only added up to a 3% reduction in "bad" cholesterol levels.
Based on those more recent studies, the AHA Nutrition Committee no
longer recommends eating soy specifically to lower cholesterol.
However, the AHA does consider soy burgers and other soy foods a
healthy replacement for high-fat meats
There are almost endless ways of getting soy into your meal plan.
Here's a rundown of some of your options.
* Tofu is a solid extract of soybeans. "It has a mild, bean-like
flavor," says Ruth Frechman, RD, a spokeswoman for the American
Dietetic Association (ADA.) "It can be added to anything you cook or
It can be eaten right out of the package." Tofu is often used in stir
-fries, curries, or stews. It tends to pick up the flavor of the sauce
* Soy nuts are roasted soybeans, which can make a tasty snack.
"Soy nuts are a convenient, crunchy source of protein," Frechman
* Soymilk is made from ground soybeans mixed with water. You
can substitute soymilk for milk in your coffee or your cereal. Or you
can just drink it on its own. "A lot of my clients really like smoothies
made with soy milk," says ADA spokeswoman Suzanne Farrell, MS,
RD. "That's a great way to get soy into your diet."
* Soy burgers, soy cheese, and other products now fill the
freezers and refrigerators at your local supermarket. Manufacturers
have come up with soy products that mimic just about every kind of
meat and dairy product. Buy a few different types and give them a
* Edamame are soybeans still in the pod. They're sold either
frozen or fresh. Frechman recommends microwaving frozen edamame
in a little water and chicken bouillon for an easy way to get soy
* Tempeh is a fermented soybean cake. It can be used as a meat
substitute, and works well in spaghetti sauce.
* Miso is a paste made from soybeans that is used for soup
stocks or as a seasoning.
* Soy flour is a powder made from ground, roasted soybeans. It
can be added to baked goods.
Choose the foods that you like. The key is to substitute soy for
high-fat meats, such as hamburger.
Originally published September 2005.
Medically updated January 2006.
Wednesday, June 17, 2009
Fri, Jun 12 04:20 PM
London, June 12 (ANI): In a rare example of a phenomenon known as Lazarus Syndrome, a 23-year-old man came back to life 30 minutes after doctors pronounced him dead.
ctors at the Royal Preston Hospital declared Michael Wilkinson dead on February 1.
However, half an hour later, doctors realised that his pulse had returned, reports the Telegraph.
Wilkinson survived for two days before being pronounced dead a second time.
An inquest heard that his return to life was known as Lazarus syndrome - the spontaneous return of circulation after attempts to resuscitate fail.
There have only ever been 38 cases recorded worldwide.
The syndrome takes its name from the biblical story of Lazarus, who was raised from the dead by Jesus.
John Whittaker, a consultant at the Royal Preston's accident and emergency department, said it was "not a small thing" to pronounce a patient dead. "You make absolutely certain," he added.
Wilkinson had collapsed after an evening in which he had enjoyed a number of drinks with his family.
However, tests showed that alcohol played no part in the incident.
A post mortem conducted at the Royal Blackburn Hospital found that he had an undiagnosed heart condition in which his left ventricle had become abnormally thickened. (ANI)
Sunday, June 14, 2009
Of DOW JONES NEWSWIRES
WASHINGTON (Dow Jones)--The U.S. Food and Drug Administration said Friday it was updating the label of Merck & Co.'s (MRK) Singulair and similar asthma medications to discuss reports of neuropsychiatric events such as agitation, depression, insomnia and suicidal thinking.
The new labeling will apply to Accolate, by AstraZeneca PLC (AZN), and Zyflo, by Cornerstone Therapeutics Inc. (CRTX). All three products fall into a drug class known as leukotriene modifiers. Leukotrienes are chemicals the body releases in response to an inflammatory stimulus such as breathing in an allergen.
The FDA said in a posting on its Web site that "patients and healthcare professionals should be aware of the potential for neuropsychiatric events with these medications."
Singulair, first approved in the U.S. in 1998, is Merck's top-selling product and had $4.3 billion in sales in 2008 and is the dominant drug in its class. The product is approved for use in children and adults as an asthma and allergy treatment. Accolate and Zyflo are approved as asthma treatments.
In a statement, Merck said it was "confident in the efficacy and safety of Singulair" and that it would work with the FDA to revise the label.
Merck noted it previously updated the post-marketing section of Singulair's label to discuss post-marketing reports of neuropsychiatric events.
The FDA said it requested manufacturers to include a precaution in the drug-prescribing information discussing such events, which is considered a strengthening of Singulair's current label and new information on the other two drug labels.
The FDA announced a safety review of Singulair last year after receiving reports of mood and behavior changes in patients who used Singulair. The agency asked Merck and the other two drug makers to submit all available clinical trial information, which the agency reviewed along with post-marketing reports.
The agency said some of the post-marketing reports involving neuropsychiatric events "included clinical details consistent with a drug-induced effect."
The FDA said reported neuropsychiatric events include agitation, aggression, anxiousness, dream abnormalities and hallucinations, depression, insomnia, irritability, restlessness, suicidal thinking and behavior, suicides and tremor. The agency said neuropsychiatric events "were not commonly observed" in the clinical trial data submitted by the manufacturers, but said the studies weren't designed to look for such events. The agency said sleep disorders such as insomnia were reported more frequently in clinical studies of all three drugs compared to patients taking placebos.
-By Jennifer Corbett Dooren, Dow Jones Newswires; 202-862-9294; firstname.lastname@example.org
Friday, June 12, 2009
June 10, 2009) —
According to a research abstract that will be presented on June 9, at Sleep 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, adolescent obesity is associated with having less sleep. Reduction in sleep could be related to a higher caffeine intake, more hours of technology use and increased symptoms of sleep disorders (such as snoring).
Results indicate that children who slept less consumed more caffeine and had more hours of screen time (use of television, Internet, computer and video games). A higher body mass index (BMI) was also associated with shorter sleep duration. More hours of screen time were also associated with higher caffeine consumption.
According to lead author Amy Drescher, PhD, research specialist at the University of Arizona in Tucson, there are many reasons that kids gain weight, and inadequate sleep is just one of them.
"Boys had significantly more vigorous exercise, recreational activity than girls," said Drescher. "The sleep and obesity connection is not always seen because factors such as exercise may keep weight in check."
The study gathered data from 320 children who completed detailed dietary and physical activity questionnaires. Correlation and regression analysis were used to study the relationships among diet, physical activity and self-reported sleep duration and screen time. Mean age of the sample group was 13.3 years; 51.8 percent of participants were male, 65 percent were Caucasian and 35 percent were Hispanic.
Inadequate sleep combined with increased electronic screen time and caffeine intake may have negative implications for adolescents' health, psychosocial well-being and academic performance.
Abstract Title: Associations Between Sleep, and Dietary, Exercise and Electronic Screen Habits of Adolescents in the Tucson Children's Assessment of Sleep Apnea (TuCASA) study--------------------------------------------------------------------------------
Adapted from materials provided by American Academy of Sleep Medicine.
Tuesday, June 2, 2009
By ANDREW POLLACK
Published: June 1, 2009
Scientists also announced that a cancer vaccine for non-Hodgkin’s lymphoma has had some success in patients who have been in remission for six months or longer.
For more information, kindly cut and paste the URL that follows:P
Courtesy: Newyork Times.http://www.nytimes.com/2009/06/01/business/01drug.htmlPromising
Sunday, May 31, 2009
COURTESY: NEW YORK TIMES.ORLANDO, Fla. — Hormone therapy taken by women to counter the effects of menopause can increase the risk of dying from lung cancer, researchers reported here on Saturday.
The findings represent the latest black mark against a therapy already being used much more sparingly than it once was. But researchers said the new data should serve as a caution to women who did continue to take hormones not to smoke.
“We shouldn’t be using both combined hormone therapy and tobacco at the same time,” said Dr. Rowan Chlebowski of the Harbor-U.C.L.A. Medical Center in California and lead author of the study, which was presented at the annual meeting of the American Society of Clinical Oncology.
Dr. Chlebowski said there was one avoidable lung cancer death over eight years for every 100 women who both smoked and took hormone therapy.
The new analysis used data from the Women’s Health Initiative study, in which women took either Prempro, a drug combining estrogen and progestin, or a placebo. The study was discontinued in 2002 after it was found that the hormone therapy increased the risk of breast cancer.
The new analysis looked specifically at lung cancer for the five and a half years that the women took either the drug or the placebo and for more than two years afterward.
There were 96 cases of non-small-cell lung cancer, the most common type of the disease, among the roughly 8,000 women who used hormone therapy, compared with 72 cases among the nearly equal number who took the placebo. That difference was not statistically significant, meaning it could have occurred by chance.
But there were 67 deaths from lung cancer among the hormone users versus 39 among those who took the placebo, a result that was statistically significant.
Among smokers, 3.4 percent of hormone users died from lung cancer, compared with 2.3 percent of those who got the placebo. Among women who never smoked, 0.2 percent of hormone users died from lung cancer, compared with 0.1 percent of those who got the placebo.
Dr. Otis Brawley, the chief medical officer of the American Cancer Society, said he was not convinced that the results were not due to chance, given that there was a meaningful difference in deaths but not in number of cases.
In another study presented here, researchers reported that the drug Avastin showed signs that it could help prevent the recurrence of colon cancer, but the effect wore off after patients stopped taking it.
Avastin, which blocks the flow of blood to tumors, has been a best-selling cancer drug that is used for late-stage cancers. But the new study, involving 2,700 patients, looked at whether the drug could be given earlier, immediately after a colon tumor was removed by surgery. The idea was to keep cancer from coming back and effectively “cure” the patient.
Genentech, the manufacturer of the drug, announced in April that the drug had failed to prevent recurrence, though it provided no details at that time.
The data released here on Saturday showed that after three years, 77.4 percent of those who received a year of Avastin along with six months of standard chemotherapy were alive and disease free. That compared with 75.5 percent of those who got the chemotherapy alone, an insignificant difference.
After only the first year, however, when patients were taking Avastin, 94.3 percent of those who got the drug were cancer-free and alive compared with 90.7 percent of those who got chemotherapy alone, a difference that was statistically significant.
“It was effective, but that efficacy disappeared after the year in which bevacizumab was given,” said Dr. Norman Wolmark, chairman of the group of researchers, sponsored by the National Cancer Institute, who conducted the trial. Bevacizumab is the generic name for Avastin.
Dr. Wolmark said the research group hoped now to conduct a trial in which the drug would be given for two or more years.
But the prospect of giving Avastin for such a long duration is already raising concerns among doctors, not least because the drug costs about $50,000 a year when used to treat colon cancer. Moreover, the majority of patients with early colon cancer are already kept from relapsing by surgery and chemotherapy alone. So Avastin might have to be given for a long time to a lot of people to prevent a relatively few relapses.
“We have to think hard about long-term chemotherapy in our patients due to the impact on quality of life and the costs,” said Dr. Jennifer C. Obel, a gastrointestinal oncologist at NorthShore University HealthSystem in Chicago. “Are we going to be giving bevacizumab for three years, four years?”
Dr. Hal V. Barron, chief medical officer for Genentech, which is now owned by the Swiss drug company Roche, said the results “suggest promise for future trials.” He said the company offered programs to help patients obtain its drugs.
A version of this article appeared in print on May 31, 2009, on page A23 of the New York edition.
Saturday, May 30, 2009
Occasionally, we are told that we have astigmatism. Sometimes, when we age, doctors tell us that we have cataract. A more serious ailment is glaucoma. A common ailment working in dusty occoupations is blepharitis, or even inflammations of the eye lids.
As we read the prescription card, we read something like 6/6 or if u are in a Western country, 20/40 or 20/50 etc.,
What do all these mean?
Here is answers to your doubts and questions:
Please read fully.
Tuesday, May 26, 2009
TUESDAY, May 26 (HealthDay News) --
"A genetic link between gum disease (periodontitis) and heart disease has been discovered by German scientists.
The association between periodontitis and coronary heart disease (CHD) has been known for years, but a genetic link between the conditions hadn't been confirmed. The University of Kiel team found that the two diseases share a genetic variant on chromosome 9.
"We studied a genetic locus on chromosome 9p21.3 that had previously been identified to be associated with myocardial infarction [heart attack], in a group of 151 patients suffering from the most aggressive, early-onset forms of periodontitis, and a group of 1,097 CHD patients who had already had a heart attack. The genetic variation associated with the clinical pictures of both diseases was identical," Dr. Arne Schaefer said in a European Society of Human Genetics (ESHG) news release.
He and his colleagues verified this genetic association in additional groups of 180 periodontitis patients and 1,100 CHD patients.
The study was presented May 25 at the annual ESHG conference, in Vienna, Austria.
Because of the link between periodontitis and CHD, "we think that periodontitis should be taken very seriously by dentists and diagnosed and treated as early as possible," Schaefer said. He noted that periodontitis and CHD share risk factors such as smoking, diabetes and obesity.
"Now that we know for sure that there is a strong genetic link, patients with periodontitis should try to reduce their risk factors and take preventive measures at an early stage," he said. "We hope that our findings will make it easier to diagnose the disease at an early stage, and that in future, a greater insight into the specific pathophysiology might open the way to effective treatment before the disease can take hold."
The American Academy of Periodontology has more about periodontitis."
காக்க... காக்க... இருதயம் காக்க...
* எனக்கு ட்ரெட் மில் டெஸ்ட் செய்து பார்த்ததில் பரிசோதனை முடிவு பாசிட்டிவ்வாக வந்தது. உடனே ஆஞ்சியோ கிராம் எடுக்க வேண்டும் என்று கூறினர். ஆனால் ஆஞ்சியோ கிராம் டெஸ்ட் நார்மலாக வந்துள்ளது. இது எப்படி சாத்தியம்?
- எம். சசிதரன், மூணாறு
ட்ரெட் மில் டெஸ்ட் என்பது ஒருவர் நடந்து கொண்டிருக்கும்போது இ.சி.ஜி.,யை பதிவு செய்யும் டெஸ்ட் ஆகும். நடக்கும்போது ஒவ்வொரு 3 நிமிடங்களுக்கும் இக்கருவியின் வேகம் அதிகரிக்கும். இதை ஸ்கிரீனிங் டெஸ்ட் என்று கூற வேண்டும். இந்த ட்ரெட் மில் டெஸ்ட் முடிவு பாசிட்டிவ்வாக வந்தால் இருதயத்தில் ரத்தநாளங்களில் அடைப்பு இருப்பதற்கான வாய்ப்பு உள்ளது. ஆனால் இந்த டெஸ்ட்டின் முடிவு நூறு சதவீதம் நோயின் தன்மையை துல்லியமாக கூறும் என்று கூற முடியாது. 75 சதவீதம்தான் சரியானதாக வர வாய்ப்புள்ளது. ட்ரெட்மில் டெஸ்ட் பாசிட்டிவ்வாக இருந்தால் ஆஞ்சியோகிராம் எடுப்பது அவசியம். நவீன மருத்துவ பரிசோதனையில் இருதய ரத்தநாளங்களின் அடைப்பை துல்லியமாக கூறுவது ஆஞ்சியோகிராம் டெஸ்ட் மட்டுமே.
* நான் பல ஆண்டுகளாக வைட்டமின் இ மாத்திரையை தினமும் எடுத்து வருகிறேன். இது மாரடைப்பை தடுக்கும் என்கிறார்கள். உண்மைதானா?
- கோ. அருணாதேவி, திருவாடனை.
இன்றைய மருத்துவ வழிகாட்டுதலின்படி, பல நோயாளிகளை பரிசோதித்து பார்த்ததில் வைட்டமின் இ மாத்திரையால் மாரடைப்பிற்கோ, பக்கவாதத்திற்கோ அல்லது வேறு ரத்தக்குழாய் நோய்களுக்கோ எவ்வித பயனும் இல்லை. நீங்கள் அவசியம் ஒரு வைட்டமின் மாத்திரை எடுக்க வேண்டும் என்று நினைத்தால் போலிக் ஆசிட் (ஒரு மி.கி.) எடுத்துக் கொள்வது நல்லது. இந்த மாத்திரை ரத்தக்குழாய் நோய்களுக்கு பல வழிகளில் உபயோகம் உள்ளதாக தெரியவந்துள்ளது.
* ஆஞ்சியோ கிராம் டெஸ்ட் செய்தால் அவசியம் பைபாஸ் சர்ஜரி சிகிச்சையில் முடியும் என்கிறார்கள் சரிதானா?
- கே.கவிதா, சாத்தூர்.
தவறான கருத்து. ஆஞ்சியோகிராம் டெஸ்ட் என்பது இருதயத்தில் உள்ள ரத்தநாளங்களில் அடைப்பு உள்ளதா என்பதை கண்டறியும் டெஸ்ட். அடைப்பு இருந்தால் எந்த இடத்தில் எத்தனை சதவீதம் உள்ளது என கண்டறியலாம். ஆஞ்சியோகிராம் பரிசோதனையில் 70 சதவீதத்திற்கு மேல் அடைப்பு இருந்தால் மட்டுமே பலூன் ஆஞ்சியோ பிளாஸ்டி சிகிச்சையோ, பைபாஸ் சர்ஜரி சிகிச்சையோ தேவைப்படுகிறது. அதற்கு கீழாக இருந்தால் மருந்து, மாத்திரை மூலம் நோயை கட்டுப்பாட்டில் வைக்க முடியும்.
* நான் ஸ்ட்ரெஸ்நில் மாத்திரை சாப்பிட்டு வருகிறேன். தற்போது உணவுக்குழாயில் வலி ஏற்படுகிறது. நான் மாத்திரையை நிறுத்த வேண்டுமா?
- ஆர்.பொன்னுச்சாமி, தேவக்கோட்டை.
ஸ்ட்ரெஸ்நில் மாத்திரைக்கும், உணவுக்குழாய்க்கும் எந்த சம்பந்தமும் கிடையாது. அது ஒரு லேசான தூக்க மாத்திரை. உங்களுக்கு உணவு குழாயில வலி ஏற்படுகிறது என்றால் பான் 40 மி.கி. என்ற மாத்திரையை ஒரு மாதம் எடுத்தால் வலி குறைவதற்கான வாய்ப்புள்ளது. இதன்பிறகும் குறையவில்லை என்றால் குடல் நோய் நிபுணரை பார்ப்பது நல்லது.
- டாக்டர் விவேக் போஸ், மதுரை.
Sunday, May 17, 2009
However, that's not always the case. Registered dietitian Carolyn O'Neil says it's important for parents to think about strong bones at an early age because osteoporosis is a pediatric disease with geriatric consequences.
She says, "Prime bone building years is during our childhood, during our teen years, during young adulthood." Because of that, mothers and fathers should make sure their children get plenty of calcium at a young age.
O'Neil says mothers need to be strong role models so children have strong bones. According to O'Neil, research shows that mothers who are milk drinkers have children who drink milk, too.
O'Neil has five tips to strong bones:
- Can the sodas. Drinking too many sugary sodas in place of milk can rob your daughter of the calcium she needs during these prime bone-building years. There’s been an epidemic of stress fractures and broken bones during adolescence because of severe calcium shortages.
- Nourish your bones. People forget that bones are living tissue and they need a steady supply of nutrients to grow and strengthen. Three glasses of low fat milk a day provides an ideal package of nutrients for bones: calcium, vitamin D, protein, phosphorus and potassium. These are all important nutrients for strong, sturdy bones.
- Be a role model. Several studies have found that mothers who drink milk are more likely to have daughters who drink milk, and research suggests that milk-drinking teens have stronger bones compared to their peers who drink little or no milk.
- Get moving. Bones not only need the right nourishment, they need the right type of exercise too. The type of activity that helps stimulate bone growth is called weight-bearing exercise. Get the entire family moving together with weight training, walking, hiking, jogging, climbing stairs, tennis or dancing.
- Avoid smoking and excessive alcohol. Smoking and alcohol abuse are bad for bones and can increase the bone loss.
Friday, May 15, 2009
Meditation May Increase Gray Matter
The right orbito-frontal cortex, shown here, is one of the areas of the brain that appears to be enlarged due to meditation. (Credit: Image courtesy of University of California - Los Angeles)ScienceDaily (May 13, 2009) — Push-ups, crunches, gyms, personal trainers — people have many strategies for building bigger muscles and stronger bones. But what can one do to build a bigger brain?
That's the finding from a group of researchers at UCLA who used high-resolution magnetic resonance imaging (MRI) to scan the brains of people who meditate. In a study published in the journal NeuroImage and currently available online (by subscription), the researchers report that certain regions in the brains of long-term meditators were larger than in a similar control group.
Specifically, meditators showed significantly larger volumes of the hippocampus and areas within the orbito-frontal cortex, the thalamus and the inferior temporal gyrus — all regions known for regulating emotions.
"We know that people who consistently meditate have a singular ability to cultivate positive emotions, retain emotional stability and engage in mindful behavior," said Eileen Luders, lead author and a postdoctoral research fellow at the UCLA Laboratory of Neuro Imaging. "The observed differences in brain anatomy might give us a clue why meditators have these exceptional abilities."
Research has confirmed the beneficial aspects of meditation. In addition to having better focus and control over their emotions, many people who meditate regularly have reduced levels of stress and bolstered immune systems. But less is known about the link between meditation and brain structure.
In the study, Luders and her colleagues examined 44 people — 22 control subjects and 22 who had practiced various forms of meditation, including Zazen, Samatha and Vipassana, among others. The amount of time they had practiced ranged from five to 46 years, with an average of 24 years.
More than half of all the meditators said that deep concentration was an essential part of their practice, and most meditated between 10 and 90 minutes every day.
The researchers used a high-resolution, three-dimensional form of MRI and two different approaches to measure differences in brain structure. One approach automatically divides the brain into several regions of interest, allowing researchers to compare the size of certain brain structures. The other segments the brain into different tissue types, allowing researchers to compare the amount of gray matter within specific regions of the brain.
The researchers found significantly larger cerebral measurements in meditators compared with controls, including larger volumes of the right hippocampus and increased gray matter in the right orbito-frontal cortex, the right thalamus and the left inferior temporal lobe. There were no regions where controls had significantly larger volumes or more gray matter than meditators.
Because these areas of the brain are closely linked to emotion, Luders said, "these might be the neuronal underpinnings that give meditators' the outstanding ability to regulate their emotions and allow for well-adjusted responses to whatever life throws their way."
What's not known, she said, and will require further study, are what the specific correlates are on a microscopic level — that is, whether it's an increased number of neurons, the larger size of the neurons or a particular "wiring" pattern meditators may develop that other people don't.
Because this was not a longitudinal study — which would have tracked meditators from the time they began meditating onward — it's possible that the meditators already had more regional gray matter and volume in specific areas; that may have attracted them to meditation in the first place, Luders said.
However, she also noted that numerous previous studies have pointed to the brain's remarkable plasticity and how environmental enrichment has been shown to change brain structure.
Other authors of the study included Arthur Toga, director of UCLA Laboratory of Neuro Imaging; Natasha Lepore of UCLA; and Christian Gaser of the University of Jena in Germany. Funding for the study was provided by the National Institutes of Health. The authors report no conflicts of interest.
University of California - Los Angeles (2009, May 13). Meditation May Increase Gray Matter. ScienceDaily. Retrieved May 15, 2009, from http://www.sciencedaily.com /releases/2009/05/090512134655.htm
Posted: 10:50 AM ET
As a new feature of CNNhealth.com, our team of expert doctors will answer readers’ questions. Here’s a question for Dr. Gupta.
“I saw your report earlier in the week the about high salt content in restaurant foods. I end up consuming salty foods at home too! My wife adds it to everything – even to the water she boils our pasta in. What are some alternatives I can suggest?”
Arthur, thanks for writing in! Sodium content is often not something people look for on labels, or consciously think about when preparing their meals. Even many low-fat, low-calorie items have very high levels of sodium. Then, of course, the salt shaker sitting on most kitchen tables doesn’t help the matter. You see we’re all creatures of habit. If a person grows up always adding salt and pepper to each meal, it becomes second nature. Before even tasting a meal, many people add salt to without thinking twice.
Our bodies do need some sodium. It helps regulate your body’s fluid, aids in muscle function. But too much sodium can cause a siren to go off internally. When excess salt flows through your bloodstream, your kidneys get defensive. They release a hormone that triggers blood vessels to contract, which causes your blood pressure to rise. From there it’s a ripple effect on your health. High blood pressure can cause a heart attack or stroke among other conditions. Something as seemingly small as reducing sodium levels in your diet could save your life. In fact, the American Medical Association estimates that 150,000 lives could be saved in the United States annually if people cut their salt intake in half.
There are ways to cut back when cooking at home without losing flavor. Start by getting the salt shaker off the dinner table. As I mentioned earlier, people often add it to meals just because it’s there, not because the food needs it. Keep the shaker in the cabinet, and odds are your whole family will inadvertently use it less.
Also limit your intake of processed foods and canned vegetables. An estimated 77 percent of a person’s daily sodium intake comes from these items. One serving of canned food may have up to 1,000 milligrams of sodium! Fresh fruits and vegetables have a muchlower count by nature. Find out where the local farmer’s market is in your area and bring the family to pick out favorite fresh items each week. You’ll save money too. Local markets often have lower prices.
Have you been down the herb and spice isle at the grocery store lately? There are hundred of options to add flavor to meals with little to no sodium count. You and your wife will have fun experimenting with different spices to your favorite recipes – sans salt!
Arthur, the best advice is being mindful of “hidden” sources of sodium. The American Heart Association recommends 2,300 milligrams of sodium a day for the average person. Sounds like a lot but it adds up quickly. A 12-oz glass of tomato juice has 1,000 mg of salt. One tablespoon of relish has about 250 mg. One hot dog has up to 800 mg. Many salad dressings – including fat free – have 500 mg of sodium in just two tablespoons.
Bottom line, salt is everywhere. Read the labels, look for low-sodium products and eat fresh food when possible.
Posted by: Dr. Sanjay Gupta - CNN Chief Medical Correspondent
Filed under: Dr. Gupta • Expert Q&A
Sunday, May 3, 2009
Everyone is concerned, anxious and possibly panicky.
Every Administration and Every Government possibly is doing all well within its knowledge and power to arrest its spread.
In the meantime, awareness of what this H1N1 VIRUS is and HOW we can protect ourselves is more important.
Please log to www.cnnhealth.com
Dr.Sanjaya Guptha gives the answers you need most.
Kindly log on to:
Friday, March 6, 2009
We have heard enough about Garlic as an agent to lower cholesterol levels in our lipid profile. We now learn that GARLIC helps in preventic cancer also.
Read more in HEALTHCARE.
A portion of the news is given below:
Indeed, the first scientific report to study garlic and cancer was performed in the 1950s. Scientists injected allicin, an active ingredient from garlic, into mice suffering from cancer. Mice receiving the injection survived more than 6 months whereas those which did not receive the injection only survived 2 months.
Many studies showed that the organic ingredient of garlic, allyl sulfur, another active ingredient in garlic, are effective in inhibiting or preventing cancer development. Many observational studies in human being also investigated the association of using garlic and allyl sulfur and cancer. Out of the 37 studies, 28 studies showed evidence that garlic can prevent cancer. The evidence is particularly strong in prevention of prostate and stomach cancers. This particular study looking at the risk of stomach cancer was especially interesting. This study was conducted in China. Researchers found that smokers with high garlic intake have a relatively lower stomach cancer risk than smokers with low garlic intake.
A large-scale epidemiological Iowa Women's Health Study looked at the garlic consumption in 41,000 middle-aged women. Results showed that women who regularly consumed garlic had 35% lower risk of developing colon cancer.
It is thought that the allyl sulfur compounds in garlic prevent cancer by slowing or preventing the growth of the cancer tumor cells.
Friday, February 27, 2009
Expert offers tips for choosing one carefully after an injury
By Kevin McKeever
SUNDAY, Feb. 22 (HealthDay News) -- When it comes time to use a cane to walk or support yourself after an injury, don't grab any old stick, advises the American Geriatrics Society.
Getting a cane tailored to your body and needs, and using it properly, is vital to its success and your health, according to the society's president.
"A common use of canes is for arthritis in the hip," Dr. Johnny Murphy said in a news release issued by the organization. "For patients using a cane for pain in one hip, the cane should be held in the hand opposite the affected leg. The cane should then move forward with the affected leg."
Murphy offered several tips for selecting a cane:
Check the tip: A rubber tip is a must for traction. Check the tip often, and replace it when the tread is worn.
Get a grip: Find one that feels comfortable when held. A person who has arthritis or something that affects the fingers and hands might need a specialized grip.
Adjust for your body: When standing, the elbow should be at a 30-degree angle when the cane is held next to the leg. When the arm is at your side, the cane's top should be parallel with your wrist.
Sunday, February 15, 2009
Children born in areas heavy traffic areas could be at greater risk of developing asthma due to genetic changes brought on by pollution and acquired in the womb, a new study suggests.
In a study of umbilical cord blood from New York City children, researchers found a change in a gene called ACSL3 that is associated with prenatal exposure to chemical pollutants called polycyclic aromatic hydrocarbons (PAHs), which are byproducts of incomplete combustion from carbon-containing fuels, resulting in high levels in heavy-traffic areas.
Exposure to PAHs has previously been linked to diseases such as cancer and childhood asthma.
Researchers say this finding provides a potential clue for predicting environmentally related asthma in children - particularly those born to mothers who live in high-traffic areas like Northern Manhattan and South Bronx when pregnant.
The genetic alterations are called epigenetic changes, which may disrupt the normal functioning of genes by affecting their expression but do not cause structural changes or mutations in the genes.
"Our data support the concept that environmental exposures can interact with genes during key developmental periods to trigger disease onset later in life, and that tissues are being reprogrammed to become abnormal later," said Shuk-mei Ho, University of Cincinnati researcher and lead author of a paper on the results published in the Feb. 16 issue of the journal PLoS ONE.
The researchers analyzed umbilical cord white blood cell samples from 56 children for epigenetic alterations related to prenatal PAH exposure in Northern Manhattan and the South Bronx. The mothers' exposure to PAHs was monitored during pregnancy using backpack air monitors.
The researchers found a significant association between changes in ACSL3 methylation - a gene expressed in the lung - and maternal PAH exposure. ACSL3 also was associated with a parental report of asthma symptoms in the children prior to age 5.
"This research is aimed at detecting early signs of asthma risk so that we can better prevent this chronic disease that affects as many as 25 percent of children in Northern Manhattan and elsewhere," said Frederica Perera, co-author on the paper from Columbia University Mailman School of Public Health.
More research is needed to confirm the findings, the scientists said. If the study is confirmed, changes in the ACSL3 gene could serve as a novel biomarker for early diagnosis of pollution-related asthma.
"Understanding early predictors of asthma is an important area of investigation," said study team member Rachel Miller of the Columbia Center for Children's Environmental Health. "because they represent potential clinical targets for intervention."
The study was funded by the National Institute of Environmental Health Sciences, the U.S. Environmental Protection Agency (EPA) and private foundations.
* Fight Against Germs Fuels Allergy Increase
* One-Third of U.S. Schools in 'Air Pollution Danger Zone'
* Pollution News and Information
* Original Story: Asthma May Start in the Womb
LiveScience.com chronicles the daily advances and innovations made in science and technology. We take on the misconceptions that often pop up around scientific discoveries and deliver short, provocative explanations with a certain wit and style. Check out our science videos, Trivia & Quizzes and Top 10s. Join our community to debate hot-button issues like stem cells, climate change and evolution. You can also sign up for free newsletters, register for RSS feeds and get cool gadgets at the LiveScience Store.
Saturday, January 24, 2009
சாதாரணமாக, நாம் உடல் உபாதைகளுக்காக உட்கொள்ளும் மருந்துகள் பயனளிக்கின்றன என்றாலும் அதனால் ஏற்படும் பக்க விளைவுகளும், பின் விளைவுகளும்
பல இருக்கின்றன. இவற்றைத்தவிர, ஒரு சில மருந்துகள் சாப்பிடும்போது மற்ற மருந்துகளுக்கு எதிராக செயல்படுகின்றன. அல்லது அந்த மருந்துகளின் நன்மைகளைக்
இவற்றையெல்லாம் நன்றாக தனது அனுபவத்தில் நூற்றுக்கணக்கான வியாதியஸ்தர்களைக் கண்ட பின்புதான் நமது மருத்துவர் நமக்கு ஒரு மருந்தினைத்
தருகிறார் எனினும் நமக்குத் தரும்போது நமக்கு ஏற்படும் பக்க விளைவு இதுகாறும்
கண்டிராத, உணரப்படாத விளைவாகவும் இருப்பதற்கான சாத்தியக்கூறு இருக்கிறது.
குணம் நாடி, குற்றம் நாடி, அதில் மிகை நாடி,
என்னும் வள்ளுவன் குரல் போல, ஒரு மருத்துவர் கடமை, ஒரு மருந்தின்
சாத்திய, விபரீதங்களை எடை போட்டுப் பார்த்தபின்பு தான் தரவேண்டும்.
அண்மையில் ஒரு மருந்து மான்டேலூகாஸ்ட் எனப்படுவது தரப்பட்டது. இது
ஆஸ்த்மா நோயாளிகளுக்கு ஒரு வரப்பிரசாதம் என்றே சொல்லலாம். க்ரானிக் ஆஸ்துமா நோயாளிகளுக்கு இது தரும் நிவாரணம் குறிப்பிடத்தக்கது. எனினும், இதனால், மன
நிலை பாதிப்பு ஏறபட வாய்ப்பு இருப்பதை மருத்துவர்கள் அந்த அளவுக்கு பொருட்படுத்தவில்லையெனவே நினைக்கிறேன்.
இள வயதினருக்கும் சிறுவர்களுக்கும் ஆஸ்துமா நோயைக்கட்டுப்படுத்த கொடுக்கப்படும் இ ந்த மருன்து அவர்களில் குறிப்பிடத்தக்க விழுக்காடு மன நோயாளிகளாக மாற்றிவிட்ட நிலை இன்த வெப் ஸைட்டில் காணப்படுகிறது.
இச்சிறுவர்களின் பெற்றோர்கள் இதற்கெனவெ ஒரு தகவல் மையம் அமைத்திருக்கிறார்கள்.
support groups. We find more than 2000 parents reporting side effects of this drug Montelukast when administered to their wards who were suffering from bronchial asthma. While a good many of them returned to normalcy on stopping the drug, equally a good many could not get reversed and back to normal behaviour.
We only pray to God that the manufacturers of these drugs take into account the post marketing experiences of the patients into account, and the Community of physicians keep themselves abreast of these developments.
Friday, January 23, 2009
Saturday, January 10, 2009
Thursday, January 8, 2009
அது ஒரு பெரிய மருத்துவகம். கிட்டத்தட்ட ஒரு மூன்று நட்சத்திர ஹோட்டல் வசதிகள் கூடியதாக இருந்தது. அதில் எல்லாவகையான பரிசோதனைகளும் நடத்தப்படுகின்றன. 24 மணி நேர எமர்ஜென்சி மருத்துவகம் என்று பலகை அறிவிக்கிறது.
உள்ளே சென்று என் பெயரைப் பதிவு செய்துகொண்டேன். எனது முறை வந்தது. மருத்துவர் அறைக்குச் சென்றேன்.
என்ன தொல்லை எனச் சொன்னவுடன் என் காதைப் பார்த்தார். ஆமாம். சுத்தப்படுத்த வேண்டும். இருப்பினும் உங்கள் மூக்கிலும் பிரச்னை இருக்கிறது என்றார். அதற்கு ஒரு எக்ஸ் ரே எடுத்துக் கொண்டு வாருங்கள் என்றார். அங்கேயே எக்ஸ் ரே பிடிக்கவும் அவரது மருத்துவ ஆலோசனைக் கட்டணத்தையும் செலுத்திவிட்டு, எக்ஸ் ரேக்காக காத்திருந்தேன். எக்ஸ் ரே பி என். எஸ் என்று சொன்னார்கள். குப்புறப்படுக்க வைத்து விட்டு, தலைக்கு மேல் கருவியை வைத்துவிட்டு எடுத்தார்கள்.
ஒரு அரை மணி நேரம் கழித்து எக்ஸ் ரே படத்தை கொடுத்தார்கள். அதை எடுத்துக் கொண்டு போய் திரும்பவும் அந்த நிபுணரிடம் காண்பித்தேன். அவர் அதைப் பார்த்துவிட்டு ஒரு ஸ்கான் எடுத்துக் கொண்டு வாருங்கள். இன்றோ அல்லது நாளையோ வாருங்கள். உங்களுக்கு மூக்கில் இருபக்கங்களிலும் அடைப்பு (ப்ளாக்) இருக்கிறது. அதற்கு சர்ஜரி தேவையா இல்லையா என்று அதைப் பார்த்தபின் சொல்கிறேன் என்றார்.
என்ன இது ! எனக்கு இந்த சளி தொந்தரவை த்தவிர்த்து அதுவும் இந்த குளிர் காலத்தில் இருப்பது தான். வேறு எதுவும் இந்த 66 வயதில் வரவில்லையே ! எதற்கு ஸ்கான் ? என்ன வியாதியாக இருக்கும் ? ஆபரேஷன் என்று சொல்கிறாரே ! அது இந்த வயதில் முடியுமா ? இதை ச் செய்து தான் ஆக வேண்டுமா ?
ஸ்கானுக்கு எத்தனை செலவாகும் எனக் கேட்டேன். 2500 ரூபாய் என்றார்கள்.
அதற்கு இந்த சளியை அவ்வப்போது சிந்தி எறிவதற்கு டிஷ்யூ பேப்பர் ஒரு 1000000 வாங்கிவிடலாமே என நினைத்தேன்.
எதற்கும் எனது வழக்கமான ஆலோசனை மருத்துவரைச் சந்தித்து அவரது அறிவுரைதனை ப் பெறலாம் என்று சென்றேன்.
அவரிடம் அந்த எக்ஸ் ரே யைக் காண்பித்தேன்.
சளி பிடித்திருக்கிறது. அவ்வளவு தான். என்றார். ஸ்கான் என்று இழுத்தேன். சிரித்தார்.
மருத்துவத் தொழிலில் transparency என்பது விட்டுப்போய் பலகாலம் ஆயிற்று .
சளி பிடித்திருக்கிறது. அதோடு கூட எனக்கு சனியும் பிடித்திருக்கிறது என்று நினைத்து க்கொண்டு வீடு திரும்பினேன்.
சனி ஆயுஷ்காரகன். இப்போது கோசரத்தில் சனி சிம்மத்திலும் ராகு மகரத்திலும் இருக்கிறார்கள். ஒன்றுக்கொன்று
ஆறுக்கு எட்டு. ( ஷஷ்டாஷ்டகம் ) அதனால்தான் இப்படி படுத்துகிறதோ என்று நினைத்துக் கொண்டு திரும்பினேன்.
வலை அன்பர் திரு சுப்பையா அவர்களிடம் கேட்கவேண்டும்.