NTR 301 1st Edition Lecture 12 Outline of Last Lecture I Direct Procedures for Studying Diet Disease Relationships A Clinical Trials B Limitations Outline of Current Lecture I Direct Procedures for Studying Diet Disease Relationships Continued A Animal Trials B Test Tube Trials II Conclusions Current Lecture Animal Trials Lab animals are used to study these relationships as well Animal Studies are most commonly known for their use in obesity studies Advantages Can study over the course of the animals life because of shorter lifespans Easier to control in terms of diet exercise sleep and genetics Can conduct a post mortem analysis These are all important for testing possible causes of a disease Disadvantages Ethical Issues Cannot Communicate Certain treatments might affect them differently than humans Test Tube Trials In Vitro Referred to as Basic Science Most helpful for studying genetic factors These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Investigates factors that could cause many conditions Conclusions All Studies have limitations and no one study can prove or disprove any factor of diet disease relationships 1 Characteristics of the study group human animal or test tube 2 Relationship between when the disease started and the time data is gathered observational study treatment administered experimental study Example Childhood Exposure 3 Absolute Size of the Effect 4 The Outcome measured Example Disease versus risk factor for the disease
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