Alison Duncan

Prof. Alison Duncan


Research Focus & Metrics

Academic Career Length

28Years (1999-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 March 2017 in Nutrients
Verified
Journal Article
Open access
PDF file
DRD. Dan Ramdath
D. Dan Ramdath
EPEmily Padhi
Emily Padhi
Sidra SarfarazSidra Sarfaraz
Sidra Sarfaraz
SRSimone Renwick
Simone Renwick
ADAlison Duncan
Alison Duncan
The hypocholesterolemic effect of soy is well-documented and this has led to the regulatory approval of a health claim relating soy protein to a reduced risk of cardiovascular disease (CVD). However, soybeans contain additional components, such as isoflavones, lecithins, saponins and fiber that may improve cardiovascular health through independent mechanisms. This review summarizes the evidence on the cardiovascular benefits of non-protein soy components in relation to known CVD risk factors such as hypertension, hyperglycemia, inflammation, and obesity beyond cholesterol lowering. Overall, the available evidence suggests non-protein soy constituents improve markers of cardiovascular health; however, additional carefully designed studies are required to independently elucidate these effects. Further, work is also needed to clarify the role of isoflavone-metabolizing phenotype and gut microbiota composition on biological effect.

1 June 2003 in Best Practice & Research Clinical Endocrinology & Metabolism
Verified
Journal Article
Closed access
ADAlison Duncan
Alison Duncan
WPWilliam R Phipps
William R Phipps
MKMindy S Kurzer
Mindy S Kurzer

1 November 2016 in The Journal of Nutrition
Verified
Journal Article
Closed access
PDF file
SDSarah A Dainty
Sarah A Dainty
SKShannon L Klingel
Shannon L Klingel
SPStephanie E Pilkey
Stephanie E Pilkey
EMEvan McDonald
Evan McDonald
BMBruce McKeown
Bruce McKeown
ADAlison Duncan
Alison Duncan
Background: Type 2 diabetes (T2D) incidence continues to rise. Although increasing dietary fiber intake is an established strategy for improved glycem

17 May 2014 in Nutrition Journal
Verified
Journal Article
Open access
PDF file
MVMeagan N Vella
Meagan N Vella
LSLaura M Stratton
Laura M Stratton
JSJudy Sheeshka
Judy Sheeshka
ADAlison Duncan
Alison Duncan
The functional food industry has experienced innovative and economic expansion, yet research into consumer perceptions of functional foods and their associated health claims is limited. Among consumers, older adults could benefit from functional foods due to age-related issues pertaining to food and health. The purpose of this research was to identify the need for information related to functional foods among older adults (≥60 years old) and to assess awareness and perceptions of health claims on functional food packages.

1 February 2006 in The American Journal of Clinical Nutrition
Verified
Journal Article
Open access
PDF file
BMBrianne L McVeigh
Brianne L McVeigh
BDBarbara L Dillingham
Barbara L Dillingham
JLJohanna W Lampe
Johanna W Lampe
ADAlison Duncan
Alison Duncan
Background: Previous research supports a role for soy protein in reducing serum lipids; however, few studies involved healthy male subjects or focused on soy isoflavones (or did both). Objective: The objective was to ascertain the effects of soy protein varying in isoflavone content on serum lipids in healthy young men. Design: Thirty-five males (x̄ ± SD age: 27.9 ± 5.7 y) consumed milk protein isolate (MPI), low-isoflavone soy protein isolate (low-iso SPI; 1.64 ± 0.19 mg aglycone isoflavones/d), and high-isoflavone SPI (high-iso SPI; 61.7 ± 7.4 mg aglycone isoflavones/d) for 57 d each, separated by 4-wk washout periods, in a randomized crossover design. Blood samples were collected at the beginning and end of each treatment period, and total, LDL, and HDL cholesterol; triacylglycerols; apolipoprotein (apo) B; apo A-I; and C-reactive protein (CRP) were measured in serum. Twenty-four-hour urine samples were collected for 3 consecutive days at the end of each treatment period and analyzed for isoflavones. Results: Urinary isoflavones were significantly greater with consumption of the high-iso SPI than with that of the low-iso SPI or MPI. The differences between the 3 treatments with respect to individual serum lipids were not significant, but the ratios of total to HDL cholesterol, LDL to HDL cholesterol, and apo B to apo A-I were significantly lower with both SPI treatments than with MPI treatment. Conclusion: Soy protein, regardless of isoflavone content, modulates serum lipid ratios in a direction beneficial for cardiovascular disease risk in healthy young men.

13 January 2017 in BMC Geriatrics
Verified
Journal Article
Open access
PDF file
HKHeather Keller
Heather Keller
NCNatalie Carrier
Natalie Carrier
SSSusan Slaughter
Susan Slaughter
CLChristina Lengyel
Christina Lengyel
CSCatriona M. Steele
Catriona M. Steele
LVLita Villalon
Lita Villalon
Older adults living in long term care (LTC) homes are nutritionally vulnerable, often consuming insufficient energy, macro- and micronutrients to sustain their health and function. Multiple factors are proposed to influence food intake, yet our understanding of these diverse factors and their interactions are limited. The purpose of this paper is to fully describe the protocol used to examine determinants of food and fluid intake among older adults participating in the Making the Most of Mealtimes (M3) study. A conceptual framework that considers multi-level influences on mealtime experience, meal quality and meal access was used to design this multi-site cross-sectional study. Data were collected from 639 participants residing in 32 LTC homes in four Canadian provinces by trained researchers. Food intake was assessed with three-days of weighed food intake (main plate items), as well as estimations of side dishes, beverages and snacks and compared to the Dietary Reference Intake. Resident-level measures included: nutritional status, nutritional risk; disease conditions, medication, and diet prescriptions; oral health exam, signs of swallowing difficulty and olfactory ability; observed eating behaviours, type and number of staff assisting with eating; and food and foodservice satisfaction. Function, cognition, depression and pain were assessed using interRAI LTCF with selected items completed by researchers with care staff. Care staff completed a standardized person-directed care questionnaire. Researchers assessed dining rooms for physical and psychosocial aspects that could influence food intake. Management from each site completed a questionnaire that described the home, menu development, food production, out-sourcing of food, staffing levels, and staff training. Hierarchical regression models, accounting for clustering within province, home and dining room will be used to determine factors independently associated with energy and protein intake, as proxies for intake. Proportions of residents at risk of inadequate diets will also be determined. This rigorous and comprehensive data collection in a large and diverse sample will provide, for the first time, the opportunity to consider important modifiable factors associated with poor food intake of residents in LTC. Identification of factors that are independently associated with food intake will help to develop effective interventions that support food intake. ClinicalTrials.gov ID: NCT02800291 , retrospectively registered June 7, 2016.