Dogs and humans, stress may cause cancer in both | Dogzine

Dogs and humans, stress may cause cancer in both

Zieke hond (foto pixabay, stockfoto)

Just like humans, dogs are more susceptible the development of cancer when they have more stress. according to a pilot study by the University of Milan together with the University of Portsmouth. Researchers led by Dr. Simona Cannas examined two groups of 69 dogs balanced for same sex and age. One group had cancer, the other group has not. It turned out that before the diagnosis of cancer was found the group of dogs with a lot of changes in their living conditions and daily routine was diagnosed with cancer more often than the group with a regular life.

This information had already been shown in studies in humans, which are prone to the same effect, but also in laboratory animals, mostly mice. In dogs living under daily circumstances this had not previously been determined.

Stress is the general reaction of the organism when homeostasis is altered by both mental and physical conditions. The  immune system  reacts to this change in situation both in animals and humans, with the intention to adapt to the new situation. Presumably this evolved from a primitive hormonal system in primitive animals and-people to deal with changing circumstances.

When the body has prolongued stress, the immune system gets really upset. The stress disturbs, the operation of so-called T-cells  or "killer cells" which normally attack foreign organisms. Also the stress nfluences  hormones like cortisol and catecholamine which in their turn prevent the natural mechanisms that would normally eliminate "transformed cells"  like cancer cells. A tumor can arise more easily. In dogs, the effect is  more or less the same as in humans.

Into two groups -a group with malignant tumors and a healthy group,the researchers  looked at the living situation prior to the cancer diagnosis. In the cancer- group 78% of the animals experienced a dramatic change in their own environment prior to the disease. The death of a family member (human), or even a birth, a marriage, but also job changes (especially in daily routines such as working hours), etc.

In thee group of the sick dogs the was a lack of a fixed daily rhythm (solid foodstuffs, beverages and exhaust times, etc.) was significantly higher than in the healthy dogs. Stress was determined by behaviour like (always significantly higher numbers) dogs that greatly sought the attention of the owner all day (chase), which showed hiding behavior, aggression towards humans or animals or other anxiety-related symptoms.

It was found that stress, especially over a prolonged period of time, leads in dogs to a higher incidence of cancer. Behavioral therapy , along with medication would, according to the researchers ultimately help treat cancer.

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Zieke hond (foto pixabay, stockfoto)

Dogs and humans, stress may cause cancer in both

Just like humans, dogs are more susceptible the development of cancer when they have more stress. according to a pilot study by the University of Milan together with the University of Portsmouth.