Medical research on genetic disease risk factors

Medical experts are clarifying the distinction between direct inheritance and genetic predisposition. Research indicates that while family history can signal vulnerability, it is not a definitive diagnosis. For instance, data from the National Cancer Institute (INCA) suggests that only 5% to 10% of cancer cases are hereditary, and conditions like type 2 diabetes result from a multifactorial combination of genetics, diet, and lifestyle.

Further clarification from specialists, including experts from IPB University, notes that while cancer itself is not passed from parent to child, specific gene mutations—such as those in the BRCA1 tumor suppressor gene—can be transmitted. These mutations increase vulnerability but do not guarantee the development of the disease. Cancers are categorized into hereditary, familial, and sporadic groups based on their relationship to inherited mutations.

In addition to cancer and diabetes, studies have explored genetic influences on the recurrence of urinary tract infections and the rising concern of kidney function decline in young people, particularly those with high blood pressure or obesity.