Dogs could be more similar to humans than we thought

Dr. Luis Pedro Coelho et al. Of European Molecular Biology Laboratory collaborated with NestléResearch to evaluate intestinal microbiomes of the two varieties and the gene content of the canine microbiome was compared with that of human intestinal microbiome Were found to be significantly different. There are similarities than pigs and mice, close to humans

"We have found many similarities between the genetic content of human and dog intestinal microbiomes.The result of this comparison is that we resemble human best friends rather than our ingenious ideas It shows that it is. "

Researchers discovered that changes in levels of protein and carbohydrates during diet have similar effects on dogs and human microorganisms, regardless of breed and sex of dogs. Dog microbome of overweight or obese was found to be more sensitive to high protein diet than slender dog microbiome; this is consistent with the more flexible microbiome idea.

"These findings suggest that dogs are a better nutritional research model than pigs and mice. Use dog data to examine the effect of diet on human intestinal microflora You can puppy

"I think that many of the people who own pets are members of their families. As with humans, the problem of obesity in dogs is becoming increasingly serious, so it is very difficult to study the meaning of diets It is important to it. "

Researchers used a sample of 64 dogs to find out how the diet interacts with the intestinal flora of the dog. Half of them are Beagle dogs, half are hounds, and there are dogs of the same thickness and overweight. The dogs were given the same commercial dog food base diet for 4 weeks and then randomly divided into 2 groups; one ingested a high protein, low carbohydrate diet and the other received a high carbohydrate, low protein meal in the surroundings did. A total of 129 canine fecal samples were collected at week 4 and week 8. After that, researchers extracted DNA from these samples and created a canine intestinal microbiome gene catalog containing 1,247,405 genes. The canine intestinal gene catalog was compared to existing intestinal microbiome gene catalogs from humans, mice and pigs to evaluate gene content similarity and intestinal microbiome response to dietary changes.

The authors warn that humans and dogs have very similar microorganisms, but they are not the same microorganism, but rather closely related strains of the same species.

More information: Luis Pedro Coelho et al. The similarity of genetic content and response to diet in the intestinal flora of dogs and humans, Microbiome (2018). DOI: 10.1186 / s 40168-018-0450-3

Cockroaches have been thought to be infected by humans for hundreds of thousands of years, but in the history of recent evolution, it has been transferred to dogs and other similar animals. This explains why human acne (a slight rash caused by aphids puncturing our skin) is relatively trivial, and in dogs it can cause death can do. These animals may not have enough time to develop an effective immune response against the aphids. However, Chupacabra is only half of the story. "There are two sets of bodies here," Radford said. There are also reports on the death of livestock. "Some things attack these things and leave scars on their necks, it is said that every fall consumes them, so what happened there?"

And that's not all. Like all mammals, dogs and humans suffer from similar diseases. All of us may be suffering from cancer, heart disease, anxiety and obesity. But dogs in particular share their living conditions with others. These are lifestyles, nutrients, air pollution, and exposure to household chemicals. Therefore, their illness develops under the same conditions and under the influence of the same factors as human diseases. This makes a dog a perfect model animal for human genetics research

Many studies have shown that humans and dogs have experienced co-evolution for tens of thousands of years and have experienced domestication together. Dogs share very unique social and communication skills with humans, and their behavior is more like human behavior, even for chimpanzees and bonobos. This suggests that both humans and dogs are chosen for the same social behavior. Therefore, livestock is more like a dog than any other animal. Or is the dog more humane than any other animal?