Where we live can affect male reproductive health, reveals a new study. Environmental exposures are determined by location and this may underpin regional differences in male reproductive health.
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‘Environmental exposures are determined by location and this may underpin regional differences in male reproductive health.’
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The unique research focused on dogs because, as a popular pet, they share the same environment as people and are effectively exposed to the same household chemicals as their owners.
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The team also looked for signs of abnormalities in the testes. The findings showed that both the chemicals present and the extent of abnormalities in the testes were different depending on where the dog's had been living.
The researchers analyzed the testes of dogs, which had been removed for routine clinical reasons, to see what polluting chemicals were present in the tissue.
Samples were taken from across the UK, in the East and West Midlands, and the South East, as well as from Denmark and Finland.
Dr Rebecca Sumner, from the School of Veterinary Medicine and Science at the University, and lead author of the study, said: "For the first time, we have shown that the profile of chemical pollutants found in dog testes depends on where they are from. We have also shown that the same cohorts of dog testes also show geographic differences in testicular pathology and evidence of an imbalance in cells that are important for sperm production."
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"We believe, that this study is of pivotal importance since our strategy to use the dog as a sentinel species for the human has allowed us to focus directly on the testis, where detected chemicals are likely to influence male reproductive function."
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Source-Eurekalert