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Hu Y, Liu W, Huang R, Zhang X Postchallenge plasma glucose excursions, carotid intima-media thickness, and risk factors for atherosclerosis in Chinese population with type 2 diabetes. Atherosclerosis. 2010 May;210(1):302-6. doi: 10.1016/j.atherosclerosis.2009.11.015. Epub 2009 Nov 20.
McDonald JD, Chitchumroonchokchai C, Li J, Mah E, Labyk AN, Reverri EJ, Ballard KD, Volek JS, Bruno RS Replacing carbohydrate during a glucose challenge with the egg white portion or whole eggs protects against postprandial impairments in vascular endothelial function in prediabetic men by limiting increases in glycaemia and lipid peroxidation. Br J Nutr. 2018 Feb;119(3):259-270. doi: 10.1017/S0007114517003610. Epub 2018 Jan 16.
McDonald JD, Mah E, Chitchumroonchokchai C, Reverri EJ, Li J, Volek JS, Villamena FA, Bruno RS Co-ingestion of whole eggs or egg whites with glucose protects against postprandial hyperglycaemia-induced oxidative stress and dysregulated arginine metabolism in association with improved vascular endothelial function in prediabetic men. Br J Nutr. 2018 Oct;120(8):901-913. doi: 10.1017/S0007114518002192. Epub 2018 Aug 30.
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Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.