Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults
keskiviikko 1. toukokuuta 2019 päivittänyt: Richard Bruno, Ohio State University
Cardiovascular disease (CVD) is largely a lifestyle-related condition that is the #1 killer of adults in the United States.
Our work is aimed at understanding how short-term increases in blood sugar, like those that accompany eating a meal, affect blood vessel function and the risk of CVD.
This research is aimed at understanding how meals composed of eggs affect short-term increases in blood sugar from eating, which are connected with increased risk of CVD.
In particular, the investigators are trying to identify a specific meal composed of either whole eggs, egg yolks, or egg whites, that best reduces acute increases in blood sugar brought on by meals that consist of majority carbohydrate.
At the same time, the investigators are trying to explore the protective affects that eggs may have on blood vessel function and the reduction of CVD risk.
Tutkimuksen yleiskatsaus
Tila
Valmis
Interventio / Hoito
Yksityiskohtainen kuvaus
Cardiovascular disease (CVD) is the leading cause of death in the United States [1]. The inability of your blood vessels to properly enlarge and shrink, known as vascular endothelial dysfunction (VED), is an early event leading to CVD and can be caused by postprandial hyperglycemia (PPH) [1] or short-term increases in blood sugar that occur after you have eaten. Although we do not know how this occurs, research shows that temporary increases in blood sugar impair the blood vessel's ability to properly enlarge and shrink. We also know that impaired vessel function is an early event leading to CVD and that research shows that short-term increases in blood sugar impair blood vessel function, even in healthy people [2].
Because high blood levels of cholesterol increase CVD risk, this has triggered flawed guidelines to restrict cholesterol in our diet [3], including limiting egg consumption. The misguided fear towards eating eggs has been routinely challenged by large-scale studies failing to associate eggs with heart disease risk [4-8]. Research shows that eggs improve the functioning of insulin to reduce blood sugar [9]. They also contain bioactive peptides that may attenuate oxidative stress [10-11]. This provides rationale for their study as a dietary strategy to reduce PPH and VED. Thus, the objective of this study is to define the potential benefits of eggs and its components (egg yolk and egg whites) on blood vessel health in adults with prediabetes.
Opintotyyppi
Interventio
Ilmoittautuminen (Todellinen)
20
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.
Opiskelupaikat
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Ohio
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Columbus, Ohio, Yhdysvallat, 43210
- The Ohio State University
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Osallistumiskriteerit
Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.
Kelpoisuusvaatimukset
Opintokelpoiset iät
18 vuotta - 50 vuotta (Aikuinen)
Hyväksyy terveitä vapaaehtoisia
Joo
Sukupuolet, jotka voivat opiskella
Uros
Kuvaus
Inclusion Criteria:
- fasting glucose 100-125 mg/dL,
- non-dietary supplement user,
- no medications affecting vasodilation, inflammation, or energy metabolism,
- no CVD,
- nonsmokers,
- individuals having blood pressure <130/85 mmHg and total cholesterol <240 mg/dL.
Exclusion Criteria:
- unstable weight (±2 kg),
- vegetarian or egg allergy,
- alcohol intake >3 drinks/d or >10 drinks/wk), or
- ≥7 h/wk of aerobic activity.
Opintosuunnitelma
Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Ennaltaehkäisy
- Jako: Satunnaistettu
- Inventiomalli: Crossover-tehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Active Comparator: Oral Glucose Tolerance Test
We will perform fasting measurements of flow-mediated dilation (FMD) using ultrasound, and draw a blood sample, prior to administration of the test meal.
Following these baseline measurements, participants will ingest glucose (100 g).
FMD will be performed intermittently post-ingestion at 30, 60, 90, 120, 150, and 180 minutes.
Blood samples will be collected at 0 min (immediately prior to eating) and at 30, 60, 90, 120, 150, and 180 minutes following the ingestion of the meal.
After each blood sample is obtained, the catheter will be flushed with saline in order to prevent the formation of clots and to minimize the likelihood of having to insert a needle again.
Subjects will remain supine in a comfortable position for the entire duration of the test.
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Ingestion of glucose (100g)
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Kokeellinen: Glucose with Whole Eggs
We will perform fasting measurements of flow-mediated dilation (FMD) using ultrasound, and draw a blood sample, prior to administration of the test meal.
Following these baseline measurements, participants will ingest glucose (75 g) with 1.5 whole eggs (cooked).
FMD will be performed intermittently post-ingestion at 30, 60, 90, 120, 150, and 180 minutes.
Blood samples will be collected at 0 min (immediately prior to eating) and at 30, 60, 90, 120, 150, and 180 minutes following the ingestion of the meal.
After each blood sample is obtained, the catheter will be flushed with saline in order to prevent the formation of clots and to minimize the likelihood of having to insert a needle again.
Subjects will remain supine in a comfortable position for the entire duration of the test.
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Ingestion of glucose (75g)
Ingestion of 1.5 whole eggs
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Kokeellinen: Glucose with Egg Whites
We will perform fasting measurements of flow-mediated dilation (FMD) using ultrasound, and draw a blood sample, prior to administration of the test meal.
Following these baseline measurements, participants will ingest glucose (75 g) with 7 egg whites (cooked).
FMD will be performed intermittently post-ingestion at 30, 60, 90, 120, 150, and 180 minutes.
Blood samples will be collected at 0 min (immediately prior to eating) and at 30, 60, 90, 120, 150, and 180 minutes following the ingestion of the meal.
After each blood sample is obtained, the catheter will be flushed with saline in order to prevent the formation of clots and to minimize the likelihood of having to insert a needle again.
Subjects will remain supine in a comfortable position for the entire duration of the test.
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Ingestion of glucose (75g)
Ingestion of 7 egg whites
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Kokeellinen: Glucose with Egg Yolks
We will perform fasting measurements of flow-mediated dilation (FMD) using ultrasound, and draw a blood sample, prior to administration of the test meal.
Following these baseline measurements, participants will ingest glucose (75 g) with 2 egg yolks (cooked).
FMD will be performed intermittently post-ingestion at 30, 60, 90, 120, 150, and 180 minutes.
Blood samples will be collected at 0 min (immediately prior to eating) and at 30, 60, 90, 120, 150, and 180 minutes following the ingestion of the meal.
After each blood sample is obtained, the catheter will be flushed with saline in order to prevent the formation of clots and to minimize the likelihood of having to insert a needle again.
Subjects will remain supine in a comfortable position for the entire duration of the test.
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Ingestion of glucose (75g)
Ingestion of 2 egg yolks
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Vascular Endothelial Function
Aikaikkuna: Area under the curve of brachial artery FMD for 3 hours (0, 30, 60, 90, 120 min)
|
Flow mediated dilation (FMD) evaluated on the basis as change from baseline to calculate FMD area under the curve from 0-180 min, i.e. i.e.
Area Under the Curve (AUC) of change from baseline in FMD from 0 min to 180 min (i.e., AUC (FMD 0 min- 0 min, FMD 30 min-0 min, FMD 60 min-0 min, etc)
|
Area under the curve of brachial artery FMD for 3 hours (0, 30, 60, 90, 120 min)
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Glucose
Aikaikkuna: Area under the curve for plasma glucose for 3 hours (0, 30, 60, 90, 120 min)
|
Glucose concentrations evaluated on the basis as change from baseline to calculate glucose area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in glucose from 0 min to 180 min (i.e., AUC (glucose 0 min- 0 min, glucose 30 min-0 min, glucose 60 min-0 min, etc)
|
Area under the curve for plasma glucose for 3 hours (0, 30, 60, 90, 120 min)
|
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Oxidative Stress Biomarker (Malondialdehyde; MDA)
Aikaikkuna: Area under curve of MDA for 3 hours (0, 30, 60, 90, 120, 150, 180 min)
|
MDA concentrations evaluated on the basis as change from baseline to calculate MDAarea under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in MDA from 0 min to 180 min (i.e., AUC (MDA 0 min- 0 min, MDA 30 min-0 min, MDA 60 min-0 min, etc)
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Area under curve of MDA for 3 hours (0, 30, 60, 90, 120, 150, 180 min)
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Insulin
Aikaikkuna: Area under the curve for plasma insulin for 3 hours (0, 30, 60, 90, 120 min)
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Insulin concentrations evaluated on the basis as change from baseline to calculate insulin area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in insulin from 0 min to 180 min (i.e., AUC (Insulin 0 min- 0 min, insulin 30 min-0 min, insulin 60 min-0 min, etc)
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Area under the curve for plasma insulin for 3 hours (0, 30, 60, 90, 120 min)
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Cholecystokinin (CCK)
Aikaikkuna: Area under the curve for 3 hours (0, 30, 60, 90, 120 minutes)
|
CCK concentrations evaluated on the basis as change from baseline to calculate CCK area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in CCK from 0 min to 180 min (i.e., AUC (CCK 0 min- 0 min, CCK 30 min-0 min, CCK 60 min-0 min, etc)
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Area under the curve for 3 hours (0, 30, 60, 90, 120 minutes)
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Methylglyoxal (MGO)
Aikaikkuna: Area under the curve for methylglyoxal for 3 hours (0, 30, 60, 90, 120 min)
|
MGO concentrations evaluated on the basis as change from baseline to calculate MGO area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in MGO from 0 min to 180 min (i.e., AUC (MGO 0 min- 0 min, MGO 30 min-0 min, MGO 60 min-0 min, etc)
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Area under the curve for methylglyoxal for 3 hours (0, 30, 60, 90, 120 min)
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8-isoprostaglandin-F2a
Aikaikkuna: Area under the curve for 8-isoprostaglandin-F2a for 3 hours (0, 30, 60, 90, 120 min)
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8-isoprostaglandin-F2a concentrations evaluated on the basis as change from baseline to calculate 8-isoprostaglandin-F2a area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in 8-isoprostaglandin-F2a from 0 min to 180 min (i.e., AUC (8-isoprostaglandin-F2a 0 min- 0 min, 8-isoprostaglandin-F2a 30 min-0 min, 8-isoprostaglandin-F2a 60 min-0 min, etc)
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Area under the curve for 8-isoprostaglandin-F2a for 3 hours (0, 30, 60, 90, 120 min)
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Arachidonic Acid (AA)
Aikaikkuna: Area under the curve for arachidonic acid for 3 hours (0, 30, 60, 90, 120 min)
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Arachidonic acid concentrations evaluated on the basis as change from baseline to calculate arachidonic acid area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in arachidonic acid from 0 min to 180 min (i.e., AUC (arachidonic acid 0 min- 0 min, arachidonic acid 30 min-0 min, arachidonic acid 60 min-0 min, etc)
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Area under the curve for arachidonic acid for 3 hours (0, 30, 60, 90, 120 min)
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8-isoprostaglandin-F2a/Arachidonic Acid
Aikaikkuna: Area under the curve for 8-isoprostaglandin-F2a/arachidonic acid for 3 hours (0, 30, 60, 90, 120 min)
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8-isoprostaglandin-F2a/arachidonic acid concentrations evaluated on the basis as change from baseline to calculate 8-isoprostaglandin-F2a/arachidonic acid area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in 8-isoprostaglandin-F2a/arachidonic acid from 0 min to 180 min (i.e., AUC (8-isoprostaglandin-F2a/arachidonic acid 0 min- 0 min, 8-isoprostaglandin-F2a/arachidonic acid 30 min-0 min, 8-isoprostaglandin-F2a/arachidonic acid 60 min-0 min, etc)
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Area under the curve for 8-isoprostaglandin-F2a/arachidonic acid for 3 hours (0, 30, 60, 90, 120 min)
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Nitric Oxide Metabolites (Nitrites/Nitrates) (NOx)
Aikaikkuna: Area under the curve for NOx for 3 hours (0, 30, 60, 90, 120 min)
|
Biomarker of nitric oxide homeostasis is based on the assessment of total nitrite and nitrate concentrations.
Changes relative to baseline were used to calculate area under the curve of total nitric oxide metabolites from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in nitric oxide homeostasis from 0 min to 180 min (i.e., AUC (NOx 0 min- 0 min, NOx 30 min-0 min, NOx 60 min-0 min, etc)
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Area under the curve for NOx for 3 hours (0, 30, 60, 90, 120 min)
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Arginine (Arg)
Aikaikkuna: Area under the curve for arginine for 3 hours (0, 30, 60, 90, 120 min)
|
Arginine concentrations evaluated on the basis as change from baseline to calculate arginine area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in arginine from 0 min to 180 min (i.e., AUC (arginine 0 min- 0 min, arginine 30 min-0 min, arginine 60 min-0 min, etc)
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Area under the curve for arginine for 3 hours (0, 30, 60, 90, 120 min)
|
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Asymmetric Dimethylarginine/Arginine (ADMA/Arg)
Aikaikkuna: Area under the curve for ADMA/Arg for 3 hours (0, 30, 60, 90, 120 min)
|
ADMA/Arg concentrations evaluated on the basis as change from baseline to calculate ADMA/Arg area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in ADMA/Arg from 0 min to 180 min (i.e., AUC (ADMA/Arg 0 min- 0 min, ADMA/Arg 30 min-0 min, ADMA/Arg 60 min-0 min, etc)
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Area under the curve for ADMA/Arg for 3 hours (0, 30, 60, 90, 120 min)
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Symmetric Dimethylarginine/Arginine (SDMA/Arg)
Aikaikkuna: Area under the curve for SDMA/Arg for 3 hours (0, 30, 60, 90, 120 min)
|
SDMA/Arg concentrations evaluated on the basis as change from baseline to calculate SDMA/Arg area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in SDMA/Arg from 0 min to 180 min (i.e., AUC (SDMA/Arg 0 min- 0 min, SDMA/Arg 30 min-0 min, SDMA/Arg 60 min-0 min, etc)
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Area under the curve for SDMA/Arg for 3 hours (0, 30, 60, 90, 120 min)
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Angiotensin-II
Aikaikkuna: Area under the curve for angiotensin-II for 3 hours (0, 30, 60, 90, 120 min)
|
Angiotensin-II concentrations evaluated on the basis as change from baseline to calculate angiotensin-II area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in angiotensin-II from 0 min to 180 min (i.e., AUC (angiotensin-II 0 min- 0 min, angiotensin-II 30 min-0 min, angiotensin-II 60 min-0 min, etc)
|
Area under the curve for angiotensin-II for 3 hours (0, 30, 60, 90, 120 min)
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Endothelin-I
Aikaikkuna: Area under the curve for endothelin-I for 3 hours (0, 30, 60, 90, 120 min)
|
Endothelin-I concentrations evaluated on the basis as change from baseline to calculate endothelin-I area under the curve from 0-180 min, i.e.
Area Under the Curve (AUC) of change from baseline in endothelin-I from 0 min to 180 min (i.e., AUC (endothelin-I 0 min- 0 min, endothelin-I 30 min-0 min, endothelin-I 60 min-0 min, etc)
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Area under the curve for endothelin-I for 3 hours (0, 30, 60, 90, 120 min)
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Yhteistyökumppanit ja tutkijat
Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.
Sponsori
Julkaisuja ja hyödyllisiä linkkejä
Tutkimusta koskevien tietojen syöttämisestä vastaava henkilö toimittaa nämä julkaisut vapaaehtoisesti. Nämä voivat koskea mitä tahansa tutkimukseen liittyvää.
Yleiset julkaisut
- Go AS, Mozaffarian D, Roger VL, Benjamin EJ, Berry JD, Blaha MJ, Dai S, Ford ES, Fox CS, Franco S, Fullerton HJ, Gillespie C, Hailpern SM, Heit JA, Howard VJ, Huffman MD, Judd SE, Kissela BM, Kittner SJ, Lackland DT, Lichtman JH, Lisabeth LD, Mackey RH, Magid DJ, Marcus GM, Marelli A, Matchar DB, McGuire DK, Mohler ER 3rd, Moy CS, Mussolino ME, Neumar RW, Nichol G, Pandey DK, Paynter NP, Reeves MJ, Sorlie PD, Stein J, Towfighi A, Turan TN, Virani SS, Wong ND, Woo D, Turner MB; American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics--2014 update: a report from the American Heart Association. Circulation. 2014 Jan 21;129(3):e28-e292. doi: 10.1161/01.cir.0000441139.02102.80. Epub 2013 Dec 18. No abstract available.
- DECODE Study Group, the European Diabetes Epidemiology Group.. Glucose tolerance and cardiovascular mortality: comparison of fasting and 2-hour diagnostic criteria. Arch Intern Med. 2001 Feb 12;161(3):397-405. doi: 10.1001/archinte.161.3.397.
- U.S. Dept of Agriculture and U.S. Dept of Health and Human Services (2010) Dietary Guidelines for Americans. 7th Ed.
- Djousse L, Gaziano JM. Egg consumption in relation to cardiovascular disease and mortality: the Physicians' Health Study. Am J Clin Nutr. 2008 Apr;87(4):964-9. doi: 10.1093/ajcn/87.4.964.
- 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.
- Nakamura Y, Iso H, Kita Y, Ueshima H, Okada K, Konishi M, Inoue M, Tsugane S. Egg consumption, serum total cholesterol concentrations and coronary heart disease incidence: Japan Public Health Center-based prospective study. Br J Nutr. 2006 Nov;96(5):921-8. doi: 10.1017/bjn20061937.
- Sauvaget C, Nagano J, Allen N, Grant EJ, Beral V. Intake of animal products and stroke mortality in the Hiroshima/Nagasaki Life Span Study. Int J Epidemiol. 2003 Aug;32(4):536-43. doi: 10.1093/ije/dyg151.
- Scrafford CG, Tran NL, Barraj LM, Mink PJ. Egg consumption and CHD and stroke mortality: a prospective study of US adults. Public Health Nutr. 2011 Feb;14(2):261-70. doi: 10.1017/S1368980010001874. Epub 2010 Jul 16.
- Blesso CN, Andersen CJ, Barona J, Volek JS, Fernandez ML. Whole egg consumption improves lipoprotein profiles and insulin sensitivity to a greater extent than yolk-free egg substitute in individuals with metabolic syndrome. Metabolism. 2013 Mar;62(3):400-10. doi: 10.1016/j.metabol.2012.08.014. Epub 2012 Sep 27.
- Davalos A, Miguel M, Bartolome B, Lopez-Fandino R. Antioxidant activity of peptides derived from egg white proteins by enzymatic hydrolysis. J Food Prot. 2004 Sep;67(9):1939-44. doi: 10.4315/0362-028x-67.9.1939.
- Nimalaratne C, Lopes-Lutz D, Schieber A, Wu J. Effect of domestic cooking methods on egg yolk xanthophylls. J Agric Food Chem. 2012 Dec 26;60(51):12547-52. doi: 10.1021/jf303828n. Epub 2012 Dec 14.
- 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.
Opintojen ennätyspäivät
Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan julkisella verkkosivustolla.
Opi tärkeimmät päivämäärät
Opiskelun aloitus
Torstai 1. tammikuuta 2015
Ensisijainen valmistuminen (Todellinen)
Maanantai 1. elokuuta 2016
Opintojen valmistuminen (Todellinen)
Torstai 1. kesäkuuta 2017
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Keskiviikko 4. helmikuuta 2015
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Tiistai 10. helmikuuta 2015
Ensimmäinen Lähetetty (Arvio)
Keskiviikko 18. helmikuuta 2015
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Perjantai 3. toukokuuta 2019
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Keskiviikko 1. toukokuuta 2019
Viimeksi vahvistettu
Keskiviikko 1. toukokuuta 2019
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- 2014H0307 (Muu tunniste: Ohio State University IRB)
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