DNA repair mechanisms - SlideServe
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DNA repair mechanisms - SlideServe
DNA repair mechanisms. Dr.S.Chakravarty MBBS , MD. DNA Damage . During replication – corrected by proof reading Environmental factors : physical and chemical factors – corrected by DNA repair mechanisms. Already proof reading !! Why Repair ?. Learning objectives.
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DNA Repair Mechanisms - Free Sketchy MCAT Lesson
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Harvard scientists pinpoint critical step in DNA repair, cellular aging
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Melanin — it absorbs harmful UV radiation, helping reduce the DNA damage that can lead to skin cancer. It also works as a natural antioxidant, neutralizing free radicals and creating a barrier against oxidative stress. But melanin isn’t invincible. UV rays can still penetrate and cause damage, so daily sunscreen and regular skin check-ups remain essential. And when choosing face creams, stay away from ingredients like Hydroquinone, steroids & Mercury. #draishwarya #melanin #skincaretips | aishwa
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Melanin — it absorbs harmful UV radiation, helping reduce the DNA damage that can lead to skin cancer. It also works as a natural antioxidant, neutralizing free radicals and creating a barrier against oxidative stress. But melanin isn’t invincible. UV rays can still penetrate and cause damage, so daily sunscreen and regular skin check-ups remain essential. And when choosing face creams, stay away from ingredients like Hydroquinone, steroids & Mercury. #draishwarya #melanin #skincaretips | aishwa
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Cancer cells are highly flexible and can change their behavior as they move through different environments in the body. New research shows that physical pressure around a tumor can trigger internal changes that push these cells away from rapid growth and toward a more invasive and treatment resistant state. These changes do not come from permanent DNA damage but from epigenetic shifts that alter how DNA is organized and accessed inside the cell nucleus. Using zebrafish models of melanoma, resear
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Cancer cells are highly flexible and can change their behavior as they move through different environments in the body. New research shows that physical pressure around a tumor can trigger internal changes that push these cells away from rapid growth and toward a more invasive and treatment resistant state. These changes do not come from permanent DNA damage but from epigenetic shifts that alter how DNA is organized and accessed inside the cell nucleus. Using zebrafish models of melanoma, resear
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🪱 Parasites don’t just steal nutrients — they can set the stage for cancer. This isn’t fear-based. It’s biology. Chronic parasites create: • constant inflammation • immune suppression • toxic waste ammonia • bile stagnation • nutrient depletion • DNA damage from oxidative stress When the immune system is busy managing an ongoing infection it can’t clear, abnormal cells slip through surveillance. Many parasites: – carry viruses and bacteria – live inside biofilms – trigger chronic tissue irritat
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🪱 Parasites don’t just steal nutrients — they can set the stage for cancer. This isn’t fear-based. It’s biology. Chronic parasites create: • constant inflammation • immune suppression • toxic waste ammonia • bile stagnation • nutrient depletion • DNA damage from oxidative stress When the immune system is busy managing an ongoing infection it can’t clear, abnormal cells slip through surveillance. Many parasites: – carry viruses and bacteria – live inside biofilms – trigger chronic tissue irritat
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