Mom's obesity surgery may help her children
It reports on a study that followed kids' risk factors for obesity. Children who were born to an obese mother before she had weight-loss surgery were heavier, and had higher risk factors for heart disease and diabetes, than children born to that same mother after surgery. Researchers say it was because obesity causes differences in the activity of certain genes. Not that obesity affects the genes themselves, but how the genes express themselves.
The story is fine by itself. Rather well written, in fact. (Bonus points for great quotability go to co-author Dr. John Kral, who said fetuses are "differently marinated" depending on the weight of the mother.) And everything would be hunky dory were it not for this item, which was covered by Reuters two months earlier:
After weight-loss surgery, new gut bacteria keep obesity away
This one explains exactly how gastric bypass surgery helps people slim down. Researchers found that it may not have to do with going under the knife, but rather, with how the surgery changes the patient's gut bacteria. (The study was done on mice, and as a result, controlled for nearly everything; control group mice were even given a "sham" surgery.) The study raised an important question: might it be possible to skip surgery, and achieve the same effect by altering gut bugs through diet or another means?
These stories were two separate entities, presented weeks apart. But taken together, here's what I gather:
1) A mother's gastric bypass surgery helps change a baby's gene expression and makes him or her healthier for life
2) Gastric bypass surgery might not be necessary because what matters is the change in bacteria that occurs after the surgery
So if you were a woman of a high body weight who planned to become pregnant, wouldn't you want someone to have raised the connection between these two studies? Maybe you read the news today and have become convinced that gastric bypass surgery is the best way forward, even with the risks it presents. And your appointment to discuss it with your doctor is tomorrow.
But maybe you could have had other options.
The fact that no one communicated the connection between these studies is a huge oversight. I'd even argue that it is bad for scientific progress. Science is about converging upon the truth with different studies conducted under different circumstances. So why are we still presenting science studies without context or analysis, as individually-wrapped peppermint candies?
Let's give everyone the benefit of the doubt in this case and say it's because the person assigned to cover the study wasn't aware of any other relevant studies. Sure, the scientists this person interviewed are supposed to have told him or her about the context. But it's not actually a scientist's job to be aware of the news coming out of other labs at any given moment. It's the journalist's job to be informed in real time.
This is a strong argument for assigning health and science stories to those who make it their full-time mission to keep abreast of a certain area of health and science. That is to say, specialist journalists. (Luckily there are several great people, including Rob Steiner at U of T, who are working to create a new generation of specialist journos that will provide content to newsrooms that are operating on a skeleton staff of generalists.)
These two studies are just one example of something I notice all the time. Other specialists could probably cite examples from their own fields. The point is, news is set up for these obvious failures to connect the dots. But we need to work toward changing that. It's only fair to that woman - a future mother - signing the surgery release form at this very moment.