With more than 2,500 laboratory-confirmed H1N1 cases in 25 countries, reports indicate asthma, diabetes, heart disease and tuberculosis raise the risk of hospitalization or death. The CDC counted 1,639 US cases in 42 states; about 3.5 percent of cases required hospitalization.
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Disease
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Disease
Clue in autism study may help early diagnosis
Brain scans of 83 two-year-olds at the University of North Carolina-Chapel Hill found the 50 autistic children had an enlarged amygdala, a difference still present two years later. Lead researcher Joseph Piven hopes the finding allows earlier diagnosis and earlier intervention.
Disease
Hypertension linked to learning disabilities and ADHD in children
In 201 children studied at the University of Rochester, those with high blood pressure were four times as likely to have a learning disability or ADHD: 28 percent had a learning disability and 20 percent had ADHD. Dr. Marc Lande says more research on the link is needed.
Disease
Swine flu: case reports on the rise
As of May 1 the CDC counted 141 swine flu cases and one death, in Texas, across 19 states, with New York reporting 50. WHO listed 615 cases in 15 countries on May 2, including 397 cases and 16 deaths in Mexico, and advised against travel restrictions or border closures.
Disease
Belly fat linked to depression
In 409 middle-aged women going through menopause, depressive symptoms tracked with visceral fat measured by CT scan. Rush University's Lynda Powell suggests belly fat is a pathway from depression to heart disease and diabetes, but says the exact mechanism needs more research.
Disease
Swine influenza: What you need to know
A CDC question-and-answer sheet from April 2009: swine flu is a respiratory disease of pigs caused by type A influenza viruses, 11 human cases had been reported in California, Texas and Kansas, and CDC had determined the virus was spreading from person to person.
Disease
Inflammation may raise diabetes risk
Research in Cell Metabolism reports that a chemokine called CXL5, sharply elevated in the bloodstreams of obese people, is key to insulin resistance in mice. Treating affected mice with neutralizing antibodies or receptor-blocking drugs reversed the resistance.
Disease
Fat around the heart may increase risk of heart attacks
Wake Forest researchers reporting in Obesity found fat around the heart may matter more for heart attack risk than BMI or waist size. Drawing on data from 6,800 MESA participants, they looked at whether pericardial fat tracks with calcified plaque. Even a thin person can carry it.
Disease
Obesity may lower men's fertility
Among 2,037 men at the Aberdeen Fertility Centre, those with a normal body mass index produced more semen and more normal sperm than overweight or obese men, researchers reported in Barcelona. Dr. Ghiyath Shayeb suggests men hoping to conceive lose some weight first.
Disease
What's behind the link between type 2 diabetes and depression?
Among 6,814 adults followed three years in the Multi-Ethnic Study of Atherosclerosis, people with elevated depressive symptoms were 42 percent more likely to be diagnosed with diabetes, and diabetics taking medication had a raised risk of depression.
Disease
Rheumatoid arthritis is a risk factor for cardiovascular disease
Two studies presented at EULAR 2008 recorded cardiovascular events in 8.6 percent of rheumatoid arthritis patients versus 4.3 percent of the general population, and adjusted odds for CVD of 2.0 in RA against 2.3 in type 2 diabetes. Researchers say RA should count as a cardiovascular risk factor.
Disease
Lower glucose does not mean better for diabetics
The ACCORD trial pushed 10,251 type 2 diabetes patients to a glycated hemoglobin of 6.4% or a standard 7.5% and followed them a mean 3.5 years. Nonfatal cardiovascular events were slightly fewer with intensive treatment, but 257 of those patients died against 203 on standard therapy.
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