Why it might be better to be a dog person
Here’s that old debate again: Dogs or cats? You probably have your own opinion, but research presented at this year’s Digestive Disease Week may have tipped the scale by showing that children who lived with dogs may be less likely to have Crohn’s disease as adults.
The research was done by having approximately 4,300 people closely related to patients with Crohn’s disease fill out an environmental questionnaire. Using these data, the research team looked into environmental factors such as size of the families, where the home was, how many bathrooms the homes had, and quality of drinking water.
Piqsels
The researchers found that those who had or were exposed to dogs between the ages of 5 and 15 years were more likely to have healthy gut permeability and balanced microbes, which increased their protection against Crohn’s disease.
“Our study seems to add to others that have explored the ‘hygiene hypothesis’ which suggests that the lack of exposure to microbes early in life may lead to lack of immune regulation toward environmental microbes,” senior author Williams Turpin, PhD, said in the written statement.
The researchers aren’t sure why they didn’t get the same findings with cats, but Dr. Turpin theorized that dog owners tend to be outside more with their dogs or live in places with more green space, which are good protectors against Crohn’s disease.
It’s all good for dog owners, but do their pets’ parasites make you more attractive? Just more fuel for the ongoing debate.
Come for the history, stay for the fossilized parasites
Another week, another analysis of old British poop. LOTME really is your one-stop shop for all the important, hard-hitting news about historic parasites. You’re welcome, Internet.
Lisa-Marie Shillito
Human coprolite from Durrington Walls
The news this week is from Stonehenge, which is apparently kind of a big deal. Rocks in a circle, celestial calendar, cultural significance, whatever. We’re not here to talk about rocks. We’re here to talk about, uh, rocks. Smaller rocks. Specifically, coprolites, which are essentially poop turned into a rock. (Though now we’re imagining Stonehenge made out of fossilized poop rocks. Would it still be a big tourist destination? We can see both sides of the argument on that one.)
Archaeologists from the University of Cambridge have conducted an analysis of coprolites from Durrington Walls, a Neolithic settlement just a few kilometers from Stonehenge. The town dates to the same time that Stonehenge was constructed, and it’s believed that the residents were responsible for building the landmark. These coprolites, depending on what’s inside, can tell us a lot about how the builders of Stonehenge lived and, more specifically, how they ate.
In this case, the coprolites of one human and three dogs contained capillariid worm eggs. These worms come from cows, and when a human is typically infected, the eggs embed in the liver and do not pass through the body. Finding them in excrement indicates that the people were eating raw cow organs and feeding leftovers to their dogs. This is interesting, because a preponderance of pottery and cooking implements also found at the site indicates that the residents of Durrington Walls were spit-roasting or boiling their beef and pork. So the meat was cooked, but not the organs. That is an interesting dietary decision, ancient British people. Then again, modern British cuisine exists. At least now we know where they got it from.
This new research raises one other very important question: When are we going to get a full-on guided tour of all the important coprolite sites in Britain? They’ve clearly got plenty of them, and the tourist demand for ancient parasites must be sky-high. Come on, capitalism, follow through on this. We’d go.