March 5th, 2014
09:12 AM ET
Eating a high-protein diet in middle age could increase your risk of diabetes and cancer, according to a study published this week in the journal Cell Metabolism. But don't stay away from meat for too long - the same study showed those over 65 need more protein to reduce their mortality risk.
Insulin-like growth factor 1, or IGF-1, is a protein in your body related to growth and development. Past studies have linked IGF-1 to age-related diseases, including cancer. Mice and humans with higher levels of IGF-1 often have a higher risk of developing these diseases.
Scientists believe protein intake plays a role in IGF-1 activity. Eating less protein, studies have shown, can lead to lower levels of IGF-1 in your body. So theoretically, protein consumption could be directly linked to disease incidence and death. FULL POST
March 4th, 2014
10:10 AM ET
Are schoolchildren actually eating more fruits and vegetables under the new school lunch program? Apparently they are, according to a new study published Tuesday in the American Journal of Preventive Medicine.
Children returning to school beginning in fall 2012 found some significant changes to their cafeteria menus: more fruits, vegetables, and whole grains. The healthier foods were the result of changes to the National School Lunch Program made under the Healthy, Hunger-Free Kids Act of 2010.
But lack of enthusiasm about these new requirements soon surfaced. A few school districts even dropped out of the lunch program.
However, the authors of this study say their research proves the opposite: “Contrary to media reports, these results suggest that the new school meal standards have improved students' overall diet quality. Legislation to weaken the standards is not warranted.” FULL POST
February 27th, 2014
02:10 PM ET
Do men have a biological clock of sorts? A large new study suggests they may.
Compared to younger fathers, older fathers' children were found to be significantly more at risk for a host of psychiatric disorders, according to the study, published Wednesday in the journal JAMA Psychiatry.
For example, the children of fathers ages 45 and over were three times more likely to have an autism spectrum disorder, 13 times more likely to have ADHD, and 24 times more likely to have bipolar disorder than the children of fathers aged 20 to 24.
For the study, researchers analyzed data from 2.6 million children born in Sweden between 1973 and 2001, making it one of the largest and most comprehensive studies on the effects of paternal age.
February 11th, 2014
04:01 PM ET
Those who make life-saving kidney donations may face a slightly increased risk of suffering from end-stage renal disease themselves, according to a study published Tuesday in the Journal of the American Medical Association (JAMA).
The study authors compared living kidney donors to healthy individuals who would also likely qualify to donate but never did. While the actual donors had an estimated lifetime risk of 90 out of 10,000 for end-stage renal disease (ESRD), the nondonors’ risk was slightly lower at 14 out of 10,000.
“As a medical community, we feel that it’s our imperative to understand, as well as we possibly can, what these risks are and communicate them with people,” says study author Dr. Dorry Segev, a professor of surgery at John Hopkins University School of Medicine.
November 5th, 2013
11:49 AM ET
Women with higher levels of pesticides in their blood are also more likely to have endometriosis, according to a new study published Tuesday in the journal Environmental Health Perspectives.
Endometriosis is a chronic condition in which tissue normally lining the uterus’ interior walls also grows outside the uterus, commonly to the ovaries, fallopian tubes, or pelvis –- causing pelvic pain and infertility.
“It affects women during their reproductive years and it could be that as many as 10% of women during reproductive ages have endometriosis,” says Victoria Holt, a researcher at the Fred Hutchinson Cancer Research Center, a professor of epidemiology at the University of Washington and lead study author.
More than 5 million women have endometriosis, according to the U.S. Department of Health and Human Services' Office of Women's Health.
“What we know about endometriosis is that it's an estrogen-driven disease. Women who have more estrogen are more likely to have it," Holt says.
Once in the body, some organochlorine pesticides (OCPs) are believed to mimic estrogen, possibly contributing to endometriosis. FULL POST
July 9th, 2013
02:52 PM ET
Nearly one in four young adults and teenagers admitted to a Flint, Michigan, emergency department for non-sexual assault injuries say they currently possess a firearm of their own or have possessed one within the past six months, according to a new study published Monday in the journal Pediatrics.
The estimate is higher than past studies have found. One reason, according to the researchers, is that the young people studied had been involved in violent disputes; previous research looked at all comers to the emergency room.
Only 17% of those reporting they possessed a firearm say they obtained the weapon legally. FULL POST
July 2nd, 2013
06:41 PM ET
While new research finds no significant link between autism and singleton children conceived via in vitro fertilization (IVF), a slightly increased risk of mental retardation, or intellectual disability, was found following IVF treatment including intracytoplasmic sperm injection (ICSI).
ICSI involves the injection of a single sperm into an egg to fertilize it. Researchers found when ICSI was used to overcome male infertility, the risk for intellectual disability increased slightly compared to IVF without ICSI.
"The reasons (for an increased risk) could be the underlying infertility,” says Abraham Reichenberg, one of the study authors and a professor at Mt. Sinai School of Medicine in New York and King's College London.
“It could be something happening in the many steps that are involved in each of the treatments, or something that's happening later in the pregnancies, or all of them combined together. It could be any one of those steps. In any one of them it could go wrong." FULL POST
June 23rd, 2013
06:35 PM ET
The H7N9 bird flu virus, first identified in humans earlier this year, kills about 36% of infected people admitted to hospitals in China, according to a new report published Sunday in the British medical journal The Lancet.
Far more difficult to estimate, according to the study, is how many die in the general population after becoming infected, as the most severe cases are also more likely to lead to hospitalization.
That estimate – a 0.16% to 2.8% overall fatality rate for those showing symptoms of infection – suggests that the H7N9 virus is less deadly than the H5N1 Bird Flu first appearing in 2003, and more deadly than the 2009 H1N1 swine flu pandemic. FULL POST
March 26th, 2013
10:04 AM ET
The virus causing your cold sore may put you at risk for something more insidious: Lower cognitive abilities.
In a study of 1,625 people, researchers at Columbia University measured specific antibodies to common infectious agents in each person's blood, and using this information, created an "infectious burden index." Participants higher on the infectious burden index were more likely to have worse cognition, or cognitive abilities.
The study, published Monday in the journal Neurology, further suggests a link between cognitive decline and herpesviridae viral infections in particular, which previous studies have also linked to Alzheimer's disease and risk of stroke, an accompanying editorial notes. Herpesviridae is a family of viruses including HSV-1 or herpes simplex virus-1, which causes cold sores and can cause genital herpes, and HSV-2, which commonly causes genital herpes.
March 20th, 2013
07:11 AM ET
Two New York boroughs, Manhattan and the Bronx, are separated by just a few stops on the subway. Nonetheless, they are vastly different in key public health measurements.
The Bronx ranks dead last for health among all counties in New York, while Manhattan (also known as New York County) is near the top third. The rankings were based on rates of premature death and health-related quality of life. The list was recently compiled and updated for every county in every state by the University of Wisconsin’s Population Health Institute.
About this blog
Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.