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Related Concept Videos

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
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Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
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Genetic Screens02:46

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Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
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Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
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Who Is at Risk for Psychological Distress in Genetic Testing Programs for Hereditary Cancer Disorders?

F J Grosfeld1, C J Lips, F A Beemer

  • 1Division of Internal Medicine, University Medical Center, Utrecht, The Netherlands, f.j.m.grosfeld@med.uu.nl.

Journal of Genetic Counseling
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This summary is machine-generated.

Genetic testing for hereditary cancer helps identify carriers, but limited counseling resources necessitate identifying individuals at risk for psychological distress. This research offers guidelines for genetic counselors to support at-risk patients and their partners.

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Area of Science:

  • Medical Genetics
  • Psychology
  • Oncology

Background:

  • Presymptomatic identification of disease gene carriers is common in hereditary cancer management.
  • Increased DNA testing requests strain limited genetic counseling resources.
  • Identifying individuals at risk for psychological distress is crucial.

Purpose of the Study:

  • To describe factors evoking distress in genetic cancer candidates.
  • To discuss varied responses of candidates and partners to genetic testing.
  • To provide guidelines for genetic counselors to identify those needing extra support.

Main Methods:

  • Review of experiences with Huntington disease and cancer patients.
  • Exploration of risk factors for psychological distress in genetic testing contexts.

Main Results:

  • Identified key factors likely to evoke distress in genetic cancer candidates.
  • Highlighted diverse responses to genetic testing between candidates and their partners.

Conclusions:

  • Genetic counselors require tools to identify individuals at risk for psychological distress.
  • Understanding risk factors can guide counselors in offering targeted support.
  • Proactive identification of distress can improve patient and partner outcomes in hereditary cancer genetic testing.