Summary: Oncology

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Read the summary and the most important questions on Oncology

  • 1. Chapter 1

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  • From which tissue does a carcinoma arise?

    Epithelia
  • What does the term incidence mean? How is it normally expressed?

    The incidence is the number of new cases (so newly diagnosed) that is registered within a certain period (mostly one year).
    Mostly expressed as the number of new cases per 100.000 inhabitants / persons each year.
  • From which tissue does an adenocarcinoma arise?

    Glandular tissues
  • From which tissue does a sarcoma arise?

    Mesodermal tissues (e.g. Bone, muscle)
  • From which tissue does a lymphoma arise?

    (Progenitors of) white blood cells
  • What is the difference between a cytotoxic and cytostatic effect?

    Cytotoxic: prevention of cell division
    Cytostatic: killing of cells
  • What are the three phases of clinical trials?

    Phase I: assessment of safety of a limited number of patients. Also, assessment of pharmacokinetics and metabolism.
    Phase II: assessment of efficacy at a safe dose
    Phase III: extensive trials. Assessment of added value. Comparison with current standard treatment.
  • 2. Chapter 2 (1)

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  • Cancer can result from (epi)genetic alterations in human cancer genes. How?

    1. Stability genes are inactivated
    2. Oncogenes are activated
    3. Tumor suppressor genes are inactivated
  • How can ROS cause cancer?

    ROS can result in 8-oxoguanine. DNA polymerase reads this as a thymine instead of a guanine.
  • What is the DNA repair mechanism for bulky adducts?

    Nucleotide excision repair

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