Sections

Alphabetical list:

A B C D E F G H I J K L M N O P R S T U V W X Y Q Z 1 2 3 4 5 6 7 8 9

News: November 27, 2009

Air Pollution Raises Infants' Risk of Bronchiolitis

November 27, 2009

Infants who are exposed to higher levels of air pollution, including vehicle and industrial emissions and wood smoke, are at increased risk for bronchiolitis. The study is unique because it evaluated multiple sources of air pollution and their impact on infants' health.

Bronchiolitis is a common illness of the respiratory tract that is caused by an infection that impacts the minute airways call bronchioles, that lead to the lungs. When these airways become inflamed, they fill with mucus and make breathing difficult. Because infants and young children have especially small airways, they are more susceptible to bronchiolitis. Disease occurrence usually peaks at about 3 to 6 months of age and is more common in children who have not been breastfed.

The new study, which was published in the November 15 issue of the American Journal of Respiratory and Critical Care Medicine, included analysis of nearly 12,000 diagnoses of infant bronchiolitis between 199 and 2002 in southwestern British Columbia. Pollutants monitored included nitric oxide, nitrogen dioxide, carbon monoxide, sulfur dioxide, and particulate matter from monitoring stations within 10 km of where the infants lived.

The researchers found that bronchiolitis was significantly associated to an increased lifetime exposure to specific pollutants. Specifically, with respect to each of the pollutants, the infants' risk increased by 8 percent (nitric oxide), 12 percent nitrogen dioxide) 4 percent (sulfur dioxide), and 13 percent (carbon dioxide). A 6 percent increased risk was found among infants who lived with 50 meters of a highway, and an 8 percent increased risk was associated with wood smoke exposure.

Although the increased risk of bronchiolitis seen in this study was not severe, the authors note that it is important to pay attention to the impact of air pollution because it is so ubiquitous, that bronchiolitis is the main reason children are hospitalized during the first year of life, and that reducing air pollution may be one way to decrease the occurrence of the disease.

Bronchiolitis is often mild, yet some infants are at risk for more severe disease that requires hospitalization. Factors that increase the risk of severe bronchiolitis include prematurity, presence of chronic heart or lung disease, and a weakened immune system associated with illness or medication use. Children who have had bronchiolitis may be more likely to develop asthma later in life as well.

The results of this study may highlight the need for physicians to educate parents about the impact air pollution can have on their infants and how they can avoid it. It also strengthens the relationship between ambient air pollution and the development of respiratory disease among infants and children and why places where children spend a lot of time (e.g., school, playgrounds) should not be near highways and facilities that pollute the air.

SOURCES:

American Thoracic Society

Mayo Clinic




Archive issues: (50)

Archive list: 1 2 3 4 5 6 [7] 8 9 10 11 12 13 14 15 16 17

November 26, 2009 | Baby's Crying Patterns Mimic Parents' Accent

A baby's cry isn't just a method for getting mom's attention for food or comfort. It is also an important beginning to the development of language.  It is known that fetus can hear outside sounds from the womb during the last three months of pregnancy, but now German researchers have found that babies begin to pick up language patterns from their parents as well.  Kathleen Wermke PhD, lead researcher and medical ...

November 25, 2009 | Green Tea Extract Helps Prevent Oral Cancer

A leading cancer center reports that green tea extract may be helpful in preventing oral cancer in patients who have a pre-malignant condition called oral leukoplakia. The five-year survival rate among oral cancer patients is less than 50 ...

November 24, 2009 | Aggressive Tooth Brushing The 1st Cause Of Tooth Pain

One in three dentists say that aggressive toothbrushing is the most common cause of sensitive teeth, according to a nationwide member survey conducted by the Academy of General Dentistry (AGD). Acidic food and beverage consumption was found to be the number two cause.  Sensitive teeth, or dentin hypersensitivity, is a common oral condition affecting ...

Archive list: 1 2 3 4 5 6 [7] 8 9 10 11 12 13 14 15 16 17

Related articles:

Chronic prostatitis/chronic pelvic pain syndrome - signs and symptoms

  Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is characterised by pelvic or perineal pain without evidence of urinary tract infection, lasting longer than 3 months, as the key symptom. Symptoms may wax and wane. Pain can range from mild discomfort to debilitating. Pain may radiate to back and rectum, making sitting difficult. Dysuria, arthralgia, myalgia, unexplained fatigue, abdominal pain, constant burning pain in the penis, and frequency may all be present. ...

Section: Prostatitis

Clinical Tests Used to Diagnose ED

  Duplex ultrasound (Duplex ultrasound is used to evaluate blood flow, venous leak, signs of atherosclerosis, and scarring or calcification of erectile tissue. Injecting prostaglandin, a hormone-like stimulator produced in the body, induces erection. Ultrasound is then used to see vascular dilation and measure penile ...

Section: Erectile Dysfunction

Treatment - diet

  The foundation of therapy is a modification of diet to help patients avoid those foods which can further irritate the damaged bladder wall. Common offenders are highly spiced or acidic foods and include alcohol, coffees, teas, herbal teas, green teas, all sodas (particularly diet), concentrated fruit juices, tomatoes, citrus fruit, cranberries, the B vitamins, vitamin C, monosodium glutamate, chocolate, and potassium-rich foods such as bananas. Most IC/PBS support groups and many urology ...

Section: Interstitial cystitis

News

December 20, 2009

Wii, Xbox 360 and Other Video Games Offer Some Benefits

Wii, Xbox 360, PlayStation, and other video games are hot on holiday gift lists, but some parents wonder whether these games offer any benefits or are detrimental to kids. The results of a new study may put some minds at ease, while others may not.  According to the findings ...

December 18, 2009

Should You Be Shoveling Snow?

Yes, the weather outside is frightful, and soon you will have to think about shoveling snow. But should you be the one doing the work? Who should and should not shovel snow, and how can you do it safely?  Every winter, approximately 1,200 Americans die from a heart attack or another type of ...

December 17, 2009

Athletes who take NSAID's to prevent pain may be doing more harm than good

According to Stuart Warden, a researcher who studies musculoskeletal health and sports medicine, athletes who ritualistically take NSAID's to prevent post event and workout soreness and inflammation may be depriving the body ...

Blogroll