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    Home > Active Ingredient News > Antitumor Therapy > NRCO Release: Cancer is Getting Younger!

    NRCO Release: Cancer is Getting Younger!

    • Last Update: 2022-11-15
    • Source: Internet
    • Author: User
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    *For medical professionals only


    , regardless of age, it should be taken seriously




    Executive summary


    On September 6, 2022, researchers at Brigham and Women's Hospital published a study in Nature Reviews Clinical Oncology, revealing that the incidence of early-onset cancers (diagnosed before the age of 50) has increased dramatically around the world, including breast, colon, esophageal, kidney, liver and pancreatic cancers, and has risen
    sharply since around 1990.

    Research literature

    status quo


    To understand why more young individuals are being diagnosed with cancer, the scientists conducted an extensive analysis of the data available in the literature and online, including early life exposure information
    that may have contributed to this trend.

    "From our data, we observed something called the birth cohort effect
    .
    " This effect suggests that every successive group born later (e.
    g.
    ten years later) has a higher risk of developing cancer later in life, most likely due to the risk factors they were exposed to at a young age," explains Shuji Ogino, a professor and physician scientist in the Brigham Department of Pathology
    .
    "We found that this risk is increasing
    with each generation.
    For example, people born in 1960 experienced a higher risk of cancer before age 50 than those born in 1950, and we predict that this level of risk will continue to climb over successive generations
    .

    conclusion


    To conduct the study, Ogino and first author Tomotaka Ugai of the Department of Pathology and their colleagues first analyzed global data describing the incidence of 14 different cancer types that showed an increase
    in adult incidence before age 50 between 2000 and 2012.
    The team then searched for existing studies that examined trends in possible risk factors, including early life exposures
    in the general population.
    Finally, the team examined the literature
    describing the clinical and biological tumor characteristics of early-onset cancer versus late-onset cancer diagnosed after age 50.

    In an extensive review, the team found that the early life exposome, which includes a person's diet, lifestyle, weight, environmental exposures, and microbiome, has changed substantially over
    the past few decades.
    Therefore, they hypothesized that factors such as Westernized diet and lifestyle may have contributed to the early-onset cancer epidemic
    .
    The team acknowledges that this increased incidence of certain cancer types is due in part to early detection
    through cancer screening programs.
    They can't accurately gauge what percentage of this growing prevalence can only be attributed to screening and early detection
    .
    They noted, however, that the increased incidence of many of the 14 cancer types could not be due to enhanced screening
    alone.

    Possible risk factors for early-onset cancer include alcohol consumption, sleep deprivation, smoking, obesity, and eating highly processed foods
    .
    Surprisingly, the researchers found that while adult sleep time hasn't changed dramatically over the past few decades, children today sleep much
    less than they did a few decades ago.
    Risk factors such as highly processed and highly processed foods, sugary drinks, obesity, type 2 diabetes, sedentary lifestyles, and alcohol consumption have all increased significantly since the 50s, which the researchers speculate is accompanied by changes
    in the microbiome.

    prospect


    "Of the 14 cancer types we studied, 8 were related to
    the digestive system.
    The food we eat feeds the microbes in our gut
    .
    Ugai said
    .
    Diet directly affects microbiome composition, and ultimately these changes affect disease risk and outcomes
    .
    One

    limitation of this study is that researchers do not have enough data from low- and middle-income countries to determine trends in
    cancer incidence over decades.
    Going forward, Ogino and Ugai hope to continue this research by collecting more data and collaborating with international research
    institutions to better monitor global trends.
    They also explain the importance of conducting longitudinal cohort studies with parental consent to include young children
    who may be followed for decades.

    Ugai explains: "Without such studies, it would be difficult to determine what
    people with cancer today did decades ago or as children.
    Because of this challenge, we aim to run more longitudinal cohort studies in the future, tracking and collecting health data over their lifetimes and taking biological samples
    at set time points.
    Not only is this more cost-effective, given the many cancer types that need to be studied, but I believe it will give us more accurate insights
    into cancer risk for future generations.

    Comment debut: EurekAlert!


    Media Contact:

    Jessica Pastore
    Brigham and Women's Hospital
    JPastore@partners.
    org
    Cell: 6178746346


    DOI:10.
    1038/s41571-022-00672-8



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