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RISS 인기검색어
- 검색키워드
- 저자 : Ted Wilson (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Human Glycemic Response and Phenolic Content of Unsweetened Cranberry Juice
Ted Wilson,Ajay P. Singh,Nicholi Vorsa,Christopher D. Goettl,Katrina M. Kittleson,Cindy M. Roe,Gary M. Kastello,Frances R. Ragsdale 한국식품영양과학회 2008 Journal of medicinal food Vol.11 No.1
This cross-sectional study determined the phenolic composition of an over-the-counter cranberry juice (CBJ)with high-performance liquid chromatography and examined the effects of low- and normal-calorie CBJ formulations on thepostprandial glycemic response in healthy humans. The CBJ used in this study contained seven phenolic acids, with 3- and5-caffeoylquinic acid being the primary components, and 15 flavonol glycosides, with myricetin-3-galactoside and quercetin-3-galactoside being the most prevalent. CBJ proanthocyanidins consisted of three different tetramers and a heptamer, whichwere confirmed with matrix-assisted laser desorption ionization-time of flight-mass spectrometry analysis. Participants re-ceived one of the following six treatments: nothing (no water/beverage), water (480 mL), unsweetened low-calorie CBJ (38Cal/480 mL), normal-calorie CBJ (280 Cal/480 mL), isocaloric normal calorie (high fructose corn syrup [HFCS]), or isocaloriclow-calorie beverages. No significant differences in postprandial blood glucose or insulin were observed in the groups re-ceiving nothing, water, or low-calorie treatments. In contrast, the ingestion of normal-calorie CBJ and normal-calorie controlbeverage resulted in significantly higher blood glucose concentrations 30 minutes postprandially, although the differenceswere no longer significant after 180 minutes. Plasma insulin of normal-calorie CBJ and control (HFCS) recipients was sig-nificantly higher 60 minutes postprandially, but not significantly different 120 minutes postprandially. CBJ ingestion did notaffect heart rate or blood pressure. This study suggests that the consumption of a low-calorie CBJ rich in previously unchar-acterized trimer and heptamer proanthocyanidins is associated with a favorable glycemic response and may be beneficial forpersons with impaired glucose tolerance.
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Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013
Seo, Ki-Weon,Wilson, Clark R.,Scambos, Ted,Kim, Baek-Min,Waliser, Duane E.,Tian, Baijun,Kim, Byeong-Hoon,Eom, Jooyoung American Geophysical Union 2015 Journal of geophysical research. JGR. Earth surfac Vol.120 No.5
<P> Recent observations from satellite gravimetry (the Gravity Recovery and Climate Experiment (GRACE) mission) suggest an acceleration of ice mass loss from the Antarctic Ice Sheet (AIS). The contribution of surface mass balance changes (due to variable precipitation) is compared with GRACE-derived mass loss acceleration by assessing the estimated contribution of snow mass from meteorological reanalysis data. We find that over much of the continent, the acceleration can be explained by precipitation anomalies. However, on the Antarctic Peninsula and other parts of West Antarctica, mass changes are not explained by precipitation and are likely associated with ice discharge rate increases. The total apparent GRACE acceleration over all of the AIS between 2003 and 2013 is -13.6 ± 7.2 Gt/yr<SUP>2</SUP>. Of this total, we find that the surface mass balance component is -8.2 ± 2.0 Gt/yr<SUP>2</SUP>. However, the GRACE estimate appears to contain errors arising from the atmospheric pressure fields used to remove air mass effects. The estimated acceleration error from this effect is about 9.8 ± 5.8 Gt/yr<SUP>2</SUP>. Correcting for this yields an ice discharge acceleration of -15.1 ± 6.5 Gt/yr<SUP>2</SUP>. </P>
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