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Reasons for early death in large dogs
A recent scientific study has suggested that the reason large dogs tend to die young may be linked to genetic changes called "jumping genes," which accelerate during the aging process and decrease with age. The study, conducted by researchers at Arizona State University, analyzed data from 864 dogs and examined more than 3 million sites in their DNA. It revealed that over 40% of the regions associated with these genes lose important chemical markers as they age, and this decline occurs more rapidly in larger dogs. Additionally, the study found differences between males and females in the regulation of these elements on the X chromosome, indicating that different aging pathways may exist between the sexes. The findings aim to enhance our understanding of aging in humans and to develop interventions for healthier longevity—though the study did not determine whether these genetic changes are a direct cause of aging or a result of it.
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