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Freer CL, George ES, Tan SY, Abbott G, Scott D, Daly RM. Prevalence of Sarcopenia and Its Defining Components in Non-alcoholic Fatty Liver Disease Varies According to the Method of Assessment and Adjustment: Findings from the UK Biobank. Calcif Tissue Int 2024; 114:592-602. [PMID: 38678512 DOI: 10.1007/s00223-024-01212-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/14/2024] [Indexed: 05/01/2024]
Abstract
Sarcopenia may increase non-alcoholic fatty liver disease (NAFLD) risk, but prevalence likely varies with different diagnostic criteria. This study examined the prevalence of sarcopenia and its defining components in adults with and without NAFLD and whether it varied by the method of muscle mass assessment [bioelectrical impedance (BIA) versus dual-energy X-ray absorptiometry (DXA)] and adjustment (height2 versus BMI). Adults (n = 7266) in the UK Biobank study (45-79 years) with and without NAFLD diagnosed by MRI, were included. Sarcopenia was defined by the 2018 European Working Group on Sarcopenia in Older People definition, with low appendicular skeletal muscle mass (ASM) assessed by BIA and DXA and adjusted for height2 or BMI. Overall, 21% of participants had NAFLD and the sex-specific prevalence of low muscle strength (3.6-7.2%) and sarcopenia (0.1-1.4%) did not differ by NAFLD status. However, NAFLD was associated with 74% (males) and 370% (females) higher prevalence of low ASM when adjusted for BMI but an 82% (males) to 89% (females) lower prevalence when adjusted for height2 (all P < 0.05). The prevalence of impaired physical function was 40% (males, P = 0.08) to 123% (females, P < 0.001) higher in NAFLD. In middle-aged and older adults, NAFLD was not associated with a higher prevalence of low muscle strength or sarcopenia but was associated with an increased risk of impaired physical function and low muscle mass when adjusted for BMI. These findings support the use of adiposity-based adjustments when assessing low muscle mass and the assessment of physical function in NAFLD.
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Affiliation(s)
- Christine L Freer
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Sze-Yen Tan
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - David Scott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
- School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
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Freer CL, George ES, Tan SY, Abbott G, Daly RM. Delivery of a telehealth supported home exercise program with dietary advice to increase plant-based protein intake in people with non-alcoholic fatty liver disease: a 12-week randomised controlled feasibility trial. Br J Nutr 2024; 131:1709-1719. [PMID: 38268105 PMCID: PMC11063658 DOI: 10.1017/s0007114524000242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/20/2023] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
This study evaluated the feasibility and safety of a telehealth delivered exercise plus plant-based protein diet in adults with non-alcoholic fatty liver disease (NAFLD). This was a 12-week, randomised controlled feasibility trial including twenty-eight adults aged > 45 years with NAFLD randomised to a home muscle strengthening program (3 d/week) with increased protein intake (target ∼1·2-1·5 g/kg/d) from predominately plant-based sources and behavioural change support (3-4 text messages/week) (Pro-Ex n 14) or usual care (UC, n 14). Feasibility was assessed via retention (≤ 10 % attrition), adherence (exercise ≥ 66 %; recommended daily protein serves ≥ 80 %) and safety (adverse events). Secondary outcomes included macronutrient intake (3 × 24-h records), weight, moderate-to-vigorous physical activity (MVPA) and 30 s sit-to-stand (STS) performance. Study retention was 89 %. Mean exercise adherence (Pro-Ex) was 52 % with one adverse event from 241 sessions. In Pro-Ex, mean daily plant protein serves increased (0·9 to 1·4/d) and animal protein decreased (1·5 to 1·2/d) after 12-weeks, but overall adherence (serves/day) was 32[RD1] % (plant) and 42 % (animal). Relative to UC, Pro-Ex experienced a mean 2·7 (95 % CI: 0·9, 4·4) increase in 30 s STS number, 46-minute (95 % CI: -153, 245) increase in MVPA, 1·7 kg (95 % CI: -3·5, 0·2) decrease in weight, 35·2 g (95 % CI: 11·0, 59·3) increase in protein. In adults with NAFLD a telehealth home exercise and dietary intervention was safe and improved habitual plant and animal protein intake, but overall adherence was modest suggesting more intensive healthcare support may be required.
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Affiliation(s)
- Christine L. Freer
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Elena S. George
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Sze-Yen Tan
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Robin M. Daly
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
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McHugh A, O'Connell E, Gurd B, Rae P, George ES, Kleckner AS, Baguley BJ. Mediterranean-style dietary interventions in adults with cancer: a systematic review of the methodological approaches, feasibility, and preliminary efficacy. Eur J Clin Nutr 2024:10.1038/s41430-024-01426-8. [PMID: 38459161 DOI: 10.1038/s41430-024-01426-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Cancer and its treatments can lead to excess body fat, decreases in lean mass, cardiotoxicity, and other side effects. The Mediterranean diet (MED-diet) has the potential to improve clinical and supportive care outcomes. The aim of this systematic review was to evaluate the feasibility, safety, and efficacy of the MED-diet on health outcomes in adults with cancer. METHODS Three databases were searched from inception to February 2023. Eligible studies included randomised controlled trials testing a MED-diet intervention among adults with cancer. Within- and between-group differences for adherence, dietary intake and health outcomes were extracted. RESULTS Fifteen studies describing fourteen interventions were included, and there were considerable differences in study design and implementation of the MED-diet. Studies were predominately in women with a history of breast cancer. The MED-diet was safe with no adverse events reported, and feasible with high adherence and/or increases in MED-diet-compliant foods. The MED-diet when applied with an energy restriction below estimated requirements for weight loss demonstrated reductions in body weight (range: -3.9 kg to -0.7 kg). Interventions that showed significant reductions in body weight also improved quality of life. There is limited evidence to evaluating the MED-diet on cardiovascular and inflammatory markers, and heterogenous MED-diet prescriptions impede definitive conclusions on these health outcomes. CONCLUSION The MED-diet was feasible and safe for adults with cancer. There were reported benefits for weight loss following a MED-diet when an energy restriction was applied, however further evaluation to determine the effects on cardiometabolic biomarkers and other outcomes are required.
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Affiliation(s)
- Aoife McHugh
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Ellie O'Connell
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Bridie Gurd
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Paige Rae
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Elena S George
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia
| | - Amber S Kleckner
- Department of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA
| | - Brenton J Baguley
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia.
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Batt NM, Rodrigues B, Bloom S, Sawhney R, George ES, Hodge A, Vootukuru N, McCrae C, Sood S, Roberts SK, Dev A, Bell S, Thompson A, Ryan MC, Kemp W, Gow PJ, Sood S, Nicoll AJ. Metabolic-associated fatty liver disease and hepatocellular carcinoma: a prospective study of characteristics and response to therapy. J Gastroenterol Hepatol 2024. [PMID: 38369382 DOI: 10.1111/jgh.16501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/31/2023] [Accepted: 01/16/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND AND AIM The rising incidence of hepatocellular carcinoma (HCC) in Australia is related to increasing rates of metabolic-associated fatty liver disease (MAFLD). This study aimed to prospectively characterize the metabolic profile, lifestyle, biometric features, and response to treatment of HCC patients in an Australian population. METHOD Multicenter prospective cohort analysis of newly diagnosed HCC patients at six multidisciplinary team meetings over a 2-year period. RESULTS Three hundred and thirteen (313) newly diagnosed HCC patients with MAFLD (n = 77), MAFLD plus other liver disease (n = 57) (the "mixed" group), and non-MAFLD (n = 179) were included in the study. Alcohol-associated liver disease (ALD) (43%) and MAFLD (43%) were the most common underlying liver diseases. MAFLD-HCC patients were older (73 years vs 67 years vs 63 years), more likely to be female (40% vs 14% vs 20%), less likely to have cirrhosis (69% vs 88% vs 85%), showed higher ECOG, and were less likely to be identified by screening (29% vs 53% vs 45%). Metabolic syndrome was more prevalent in the MAFLD and mixed groups. The severity of underlying liver disease and HCC characteristics were the same across groups. While the MAFLD population self-reported more sedentary lifestyles, reported dietary patterns were no different across the groups. Dyslipidemia was associated with tumor size, and those taking statins had a lower recurrence rate. CONCLUSION Equal to ALD, MAFLD is now the most common underlying liver disease seen in HCC patients in Australia. Future HCC prevention screening and treatment strategies need to take this important group of patients into consideration.
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Affiliation(s)
- N M Batt
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
| | - B Rodrigues
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
| | - S Bloom
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia
| | - R Sawhney
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia
| | - E S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - A Hodge
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia
| | - N Vootukuru
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
| | - C McCrae
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
| | - Surbhi Sood
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - S K Roberts
- Department of Gastroenterology, Alfred Health, Melbourne, Victoria, Australia
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - A Dev
- Department of Gastroenterology, Monash Health, Clayton, Victoria, Australia
| | - S Bell
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Department of Gastroenterology, Monash Health, Clayton, Victoria, Australia
| | - A Thompson
- Department of Gastroenterology, St Vincent's Hospital, Fitzroy, Victoria, Australia
- University of Melbourne, Parkville, Victoria, Australia
| | - M C Ryan
- Department of Gastroenterology, St Vincent's Hospital, Fitzroy, Victoria, Australia
- University of Melbourne, Parkville, Victoria, Australia
| | - W Kemp
- Department of Gastroenterology, Alfred Health, Melbourne, Victoria, Australia
| | - P J Gow
- Department of Gastroenterology, Austin Health, Heidelberg, Victoria, Australia
| | - Siddharth Sood
- Department of Gastroenterology and Hepatology, Melbourne Health, Parkville, Victoria, Australia
| | - A J Nicoll
- Department of Gastroenterology, Eastern Health, Box Hill, Victoria, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia
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Paris T, Daly RM, Abbott G, Sood S, Freer CL, Ryan MC, George ES. Diet Overall and Hypocaloric Diets Are Associated With Improvements in Depression but Not Anxiety in People With Metabolic Conditions: A Systematic Review and Meta-Analysis. Adv Nutr 2024; 15:100169. [PMID: 38184198 PMCID: PMC10847486 DOI: 10.1016/j.advnut.2024.100169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/28/2023] [Accepted: 01/03/2024] [Indexed: 01/08/2024] Open
Abstract
The risk of depression and anxiety is higher in people with metabolic conditions, but whether dietary approaches, which are central to the management of metabolic conditions, can also improve depression and anxiety is uncertain. The primary aim of this systematic review and meta-analysis was to evaluate the effects of dietary interventions on depression and anxiety in adults with metabolic conditions. The secondary aim was to evaluate the effects of hypocaloric and isocaloric dietary interventions on these outcomes. Four databases (MEDLINE, PsychINFO, EMBASE, and CINAHL) were searched from inception to March 2023. Randomized controlled trials (RCTs) including dietary interventions in adults with metabolic conditions (type 2 diabetes mellitus, hyperlipidemia, hypertension, and/or overweight/obesity) that assessed depression and/or anxiety as outcomes were included. Overall, 13 RCTs were included in the systematic review, ≤13 of which were included in the meta-analysis. Estimates were pooled using random-effect meta-analysis for dietary interventions compared with controls. Improvements in depression scores were found in meta-analytic models including all dietary interventions [pooled estimate for the standardized mean difference (SMD) = -0.20 (95% CI: -0.35, -0.05); P = 0.007] and hypocaloric only diets [SMD = -0.27 (95% CI: -0.44, -0.10); P = 0.002]. There were no improvements in depression scores with isocaloric dietary interventions only [SMD = -0.14 (95% CI: -0.38, 0.10); P = 0.27]. In addition, there were no significant effects of any dietary interventions on anxiety scores. In adults with metabolic conditions, all dietary interventions and hypocaloric diets improved depression, but not anxiety. These findings suggest that dietary interventions including hypocaloric diets can play an important role in the management of depression in people with metabolic conditions. This systematic review and meta-analysis has been registered with PROSPERO (CRD42021252307).
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Affiliation(s)
- Tonya Paris
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Surbhi Sood
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Christine L Freer
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Marno C Ryan
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Victoria, Australia; Department of Medicine, University of Melbourne Parkville, Melbourne, Victoria, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia.
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Moreno SV, Uddin R, McNaughton SA, Livingstone KM, George ES, Siopis G, Maddison R, Huxley RR, Islam SMS. The burden of cardiovascular disease attributable to dietary risk factors in Australia between 1990 and 2019. PLoS One 2024; 19:e0295231. [PMID: 38232059 DOI: 10.1371/journal.pone.0295231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 11/19/2023] [Indexed: 01/19/2024] Open
Abstract
Unhealthy diet is associated with increased risk of cardiovascular diseases (CVD). However, there are no studies reporting the impact and trends of dietary risk factors on CVD in Australia. This study aimed to determine the burden of CVDs attributable to dietary risk factors in Australia between 1990 and 2019. We used data from the Global Burden of Diseases (GBD) study and quantified the rate (per 100,000) of deaths, disability-adjusted life years (DALYs), years lived with a disability (YLDs), and years of life lost (YLLs) for 21 CVDs attributable to 13 dietary risk factors (eight food groups and five nutrients) in Australia by sex and age groups (≥25 years and over). In 2019, the age-standardised rates of deaths, YLDs, YLLs, and DALYs attributable to dietary risk factors attributable to CVDs in the Australian population were 26.5, 60.8, 349.9, and 410.8 per 100,000 in women and 46.1, 62.6, 807.0, and 869.6 in men. Between 1990 and 2019, YLLs consistently contributed more towards the rates of DALYs than YLDs. Over the 30-year period, CVD deaths, YLLs, and DALYs attributable to dietary risk factors declined in both women and men. The leading dietary risk factors for CVD deaths and DALYs were a diet high in red meat (6.1 deaths per 100,000 [3.6, 8.7] and 115.6 DALYs per 100,000 [79.7, 151.6]) in women and a diet low in wholegrains (11.3 deaths [4.4, 15.1] and 220.3 DALYs [86.4, 291.8]) in men. Sex differences were observed in the contribution of dietary risk factors to CVD over time such that the lowest rate of decrease in deaths and DALYs occurred with diets high in sodium in women and diets high in processed meat in men. Although the burden of diet-related CVD has decreased significantly in the Australian population over the past 30 years, diets low in wholegrains and high in red meat continue to contribute significantly to the overall CVD burden. Future nutrition programs and policies should target these dietary risk factors.
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Affiliation(s)
- Sebastian V Moreno
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Riaz Uddin
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Sarah A McNaughton
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Katherine M Livingstone
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - George Siopis
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Ralph Maddison
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Rachel R Huxley
- Faculty of Health, Deakin University, Geelong, VIC, Australia
| | - Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
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Reddy A, Gatta PD, Mason S, Nicoll AJ, Ryan M, Itsiopoulos C, Abbott G, Johnson NA, Sood S, Roberts SK, George ES, Tierney AC. Adherence to a Mediterranean diet may improve serum adiponectin in adults with nonalcoholic fatty liver disease: The MEDINA randomized controlled trial. Nutr Res 2023; 119:98-108. [PMID: 37801761 DOI: 10.1016/j.nutres.2023.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 10/08/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) affects approximately 30% of adults worldwide, with chronic low-grade inflammation being a key pathophysiological feature of progression. The Mediterranean diet (MedDiet) is recognized for improving metabolic and hepatic outcomes in people with diabetes and NAFLD, in part, via anti-inflammatory properties. The aim of this study was to determine the effect of an ad libitum MedDiet versus low-fat diet (LFD) on inflammatory markers in adults with NAFLD. It was hypothesized that the MedDiet, and its individual components, would improve inflammation. This multicenter, randomized controlled trial, randomized participants to a MedDiet or LFD intervention for 12 weeks. Primary outcomes included change from baseline to 12 weeks for serum high-sensitivity C-reactive protein, interleukin-6, tumor necrosis factor-α, adiponectin, leptin, and resistin. Forty-two participants (60% female; age 52.3 ± 12.6 years; body mass index, 32.2 ± 6.2 kg/m²) were randomized to the MedDiet (n = 19) or low-fat diet (n = 23). At 12 weeks, the LFD showed a greater decrease in leptin compared with the MedDiet (-1.20 ± 3.9 ng/mL vs 0.64 ± 3.5 ng/mL, P = .010). Adiponectin significantly improved within the MedDiet (13.7 ± 9.2 µg/mL to 17.0 ± 12.5 µg/mL, P = .016), but not within the LFD group. No statistically significant changes were observed for other inflammatory markers following the MedDiet or LFD. Adherence to the MedDiet significantly improved in both study arms, although greater improvements were seen in the MedDiet group. Adiponectin significantly improved following a Mediterranean diet intervention, in the absence of weight loss. The low-fat diet did not elicit improvements in inflammatory markers. High-quality clinical trials appropriately powered to inflammatory markers are required in this population.
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Affiliation(s)
- Anjana Reddy
- School of Allied Health, Human Services and Sport, La Trobe University, Australia; Monash Centre for Health Research and Implementation, School of Public Health and Preventative Medicine, Monash University, Melbourne, VIC, Australia
| | - Paul Della Gatta
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Shaun Mason
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Amanda J Nicoll
- Department of Gastroenterology, Eastern Health, Box Hill, Australia
| | - Marno Ryan
- Department of Gastroenterology and Hepatology, St Vincent's Hospital, Fitzroy, Australia
| | - Catherine Itsiopoulos
- School of Allied Health, Human Services and Sport, La Trobe University, Australia; School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Gavin Abbott
- Monash Centre for Health Research and Implementation, School of Public Health and Preventative Medicine, Monash University, Melbourne, VIC, Australia
| | - Nathan A Johnson
- The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, The University of Sydney, Sydney, New South Wales, Australia
| | - Siddharth Sood
- Department of Gastroenterology, Melbourne Health, Melbourne, Australia; Department of Medicine, University of Melbourne, Parkville, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Prahran, Australia; Central Clinical School, Monash University, Clayton, Australia
| | - Elena S George
- School of Allied Health, Human Services and Sport, La Trobe University, Australia; Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia.
| | - Audrey C Tierney
- School of Allied Health, Human Services and Sport, La Trobe University, Australia; School of Allied Health, Health Implementation Science and Technology Research Cluster, Health Research Institute, University of Limerick, Ireland
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Mesinovic J, Fyfe JJ, Talevski J, Wheeler MJ, Leung GK, George ES, Hunegnaw MT, Glavas C, Jansons P, Daly RM, Scott D. Type 2 Diabetes Mellitus and Sarcopenia as Comorbid Chronic Diseases in Older Adults: Established and Emerging Treatments and Therapies. Diabetes Metab J 2023; 47:719-742. [PMID: 37709502 PMCID: PMC10695715 DOI: 10.4093/dmj.2023.0112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/12/2023] [Indexed: 09/16/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) and sarcopenia (low skeletal muscle mass and function) share a bidirectional relationship. The prevalence of these diseases increases with age and they share common risk factors. Skeletal muscle fat infiltration, commonly referred to as myosteatosis, may be a major contributor to both T2DM and sarcopenia in older adults via independent effects on insulin resistance and muscle health. Many strategies to manage T2DM result in energy restriction and subsequent weight loss, and this can lead to significant declines in muscle mass in the absence of resistance exercise, which is also a first-line treatment for sarcopenia. In this review, we highlight recent evidence on established treatments and emerging therapies targeting weight loss and muscle mass and function improvements in older adults with, or at risk of, T2DM and/or sarcopenia. This includes dietary, physical activity and exercise interventions, new generation incretin-based agonists and myostatin-based antagonists, and endoscopic bariatric therapies. We also highlight how digital health technologies and health literacy interventions can increase uptake of, and adherence to, established and emerging treatments and therapies in older adults with T2DM and/or sarcopenia.
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Affiliation(s)
- Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Jackson J. Fyfe
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Jason Talevski
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, St Albans, Australia
- School of Rural Health, Monash University, Warragul, Australia
| | - Michael J. Wheeler
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Gloria K.W. Leung
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia
| | - Elena S. George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Melkamu T. Hunegnaw
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Costas Glavas
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Paul Jansons
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Robin M. Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
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Raad T, Griffin A, George ES, Larkin L, Fraser A, Kennedy N, Tierney A. Experience and perceptions among rheumatoid arthritis patients following a telehealth-delivered dietary intervention: a qualitative study. Rheumatol Int 2023; 43:1913-1924. [PMID: 37418002 PMCID: PMC10435597 DOI: 10.1007/s00296-023-05382-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/24/2023] [Indexed: 07/08/2023]
Abstract
The effects of dietary modifications have been assessed in people living with rheumatoid arthritis (RA) with consistent benefits reported from clinical trials. However, the lived experience of making and sustaining positive dietary changes for people with RA remains unknown. The aim of this qualitative study was to explore the experiences of adults with RA and their perceptions of a 12-week telehealth-delivered dietary intervention and to assess the acceptability of the programme. Qualitative data was collected via four online focus groups with participants who had just completed a 12-week dietary intervention programme delivered through telehealth methods. Thematic analysis was used to code and summarize the identified key themes. Twenty-one adults with RA (47.5 ± 12.3 years, 90.5% females) were included in this qualitative study. Overarching themes included: (a) motivation to join the programme, (b) benefits of the programme, (c) factors influencing adherence to dietary prescription, and (d) advantages and disadvantages of telehealth. The study demonstrated that a dietary intervention delivered through telehealth methods by a Registered Dietitian (RD) appears to be well-accepted and may be used to complement face-to-face care for people with RA. The identified factors influencing the adoption of a healthier eating pattern will aid in the development of future dietary interventions for a RA population.
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Affiliation(s)
- Tala Raad
- Discipline of Dietetics, Faculty of Education and Health Sciences and Health Implementation Science and Technology Cluster, School of Allied Health, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland.
| | - Anne Griffin
- Discipline of Dietetics, Faculty of Education and Health Sciences and Health Implementation Science and Technology Cluster, School of Allied Health, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Victoria, VIC, 3220, Australia
| | - Louise Larkin
- Discipline of Physiotherapy, School of Allied Health, Faculty of Education and Health Sciences, Implementation Science and Technology Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Alexander Fraser
- Department of Rheumatology, University Hospital Limerick, Limerick, V94 T9PX, Ireland
- Faculty of Education and Health Sciences, Graduate Entry Medical School, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Norelee Kennedy
- Discipline of Physiotherapy, School of Allied Health, Faculty of Education and Health Sciences, Implementation Science and Technology Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Audrey Tierney
- Discipline of Dietetics, Faculty of Education and Health Sciences and Health Implementation Science and Technology Cluster, School of Allied Health, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
- Faculty of Science and Engineering, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC, 3086, Australia
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10
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Wong THT, George ES, Abbott G, Daly RM, Georgousopoulou EN, Tan SY. Nut and seed consumption is inversely associated with metabolic syndrome in females but not males: findings from the 2005-2018 NHANES data. Eur J Nutr 2023; 62:2415-2427. [PMID: 37115204 PMCID: PMC10421777 DOI: 10.1007/s00394-023-03157-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 04/18/2023] [Indexed: 04/29/2023]
Abstract
PURPOSE To assess the association between nut and seed consumption, both combined and separately, and metabolic syndrome and its components, including fasting glucose, triglycerides, high-density lipoprotein (HDL) cholesterol, central obesity, and blood pressure. METHODS This cross-sectional analysis used data from 22,687 adults (aged ≥ 18 years) involved in seven cycles (2005-2018) of the National Health and Nutrition Examination Survey (NHANES). Habitual nut and seed intakes were estimated by the Multiple Source Method using data from two 24-h dietary recalls. Metabolic syndrome was ascertained using biochemical data and self-reported medication use. Sex-specific effect estimates were obtained using logistic and linear regressions adjusting for lifestyle and socioeconomic confounders. RESULTS Compared to non-consumers, female, but not male, habitual consumers of either nuts or seeds had lower odds of having metabolic syndrome (OR: 0.83, 95% CI 0.71, 0.97). Both nut intake alone and seed intake alone were inversely associated with high fasting glucose and low HDL-cholesterol in females compared to non-consumers. When restricted to habitual consumers only, the combined intake of nuts and seeds at 6 g/day was associated with the lowest triglycerides and highest HDL-cholesterol in females. Combined consumption of nuts and seeds up to one ounce-equivalent (15 g) per day, but not in higher intake levels, was inversely associated with metabolic syndrome, high fasting glucose, central obesity, and low HDL-cholesterol in females. CONCLUSIONS Nut and seed consumption, both separately or combined, below 15 g/day was inversely associated with metabolic syndrome and its component conditions in females but not males.
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Affiliation(s)
- Tommy H T Wong
- School of Public Health, Li Ka Shing, Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3220, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3220, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3220, Australia
| | | | - Sze-Yen Tan
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3220, Australia.
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11
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Dening J, Mohebbi M, Abbott G, George ES, Ball K, Islam SMS. A web-based low carbohydrate diet intervention significantly improves glycaemic control in adults with type 2 diabetes: results of the T2Diet Study randomised controlled trial. Nutr Diabetes 2023; 13:12. [PMID: 37633959 PMCID: PMC10460437 DOI: 10.1038/s41387-023-00240-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 05/14/2023] [Accepted: 06/29/2023] [Indexed: 08/28/2023] Open
Abstract
BACKGROUND/OBJECTIVES In people with type 2 diabetes mellitus (T2DM), low carbohydrate diets (LCD), defined as 10-<26% total energy intake from carbohydrate, have indicated improved glycaemic control and clinical outcomes. Web-based interventions can help overcome significant challenges of accessibility and availability of dietary education and support for T2DM. No previous study had evaluated a web-based LCD intervention using a randomised controlled trial (RCT) design. The objective of this study was to assess whether a web-based LCD programme provided in conjunction with standard care improves glycaemic control in adults with T2DM. SUBJECTS/METHODS A 16-week parallel RCT was conducted remotely during Covid-19 among the general community, recruiting adults with T2DM not on insulin aged 40-89 years. Participants were randomly assigned (1:1) to standard care plus the web-based T2Diet healthy LCD education programme (intervention) or standard care only (control). The primary outcome was haemoglobin A1c (HbA1c). Secondary outcomes were weight, body mass index (BMI), anti-glycaemic medication, dietary intake, and self-efficacy. Blinded data analysis was conducted by intention-to-treat. RESULTS Ninety-eight participants were enrolled, assigning 49 to each group, with 87 participants (n = 40 intervention; n = 47 control) included in outcome analysis. At 16 weeks, there was a statistically significant between-group difference favouring the intervention group, with reductions in HbA1c -0.65% (95% CI: -0.99 to -0.30; p < 0.0001), weight -3.26 kg (p < 0.0001), BMI -1.11 kg/m2 (p < 0.0001), and anti-glycaemic medication requirements -0.40 (p < 0.0001), with large effect sizes Cohen's d > 0.8. CONCLUSION This study demonstrated that as an adjunct to standard care, the web-based T2Diet programme significantly improved glycaemic control and clinical outcomes in adults with T2DM. In addition, the results highlight the potential to improve access and availability for people with T2DM to achieve glycaemic control and improved health through web-based dietary education and support.
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Affiliation(s)
- Jedha Dening
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.
| | - Mohammadreza Mohebbi
- Biostatistics Unit, Faculty of Health, Deakin University, Burwood, VIC, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Kylie Ball
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
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12
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Islam SMS, Siopis G, Sood S, Uddin R, Tegegne T, Porter J, Dunstan DW, Colagiuri S, Zimmet P, George ES, Maddison R. The burden of type 2 diabetes in Australia during the period 1990-2019: Findings from the global burden of disease study. Diabetes Res Clin Pract 2023; 199:110631. [PMID: 36965709 DOI: 10.1016/j.diabres.2023.110631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/24/2023] [Accepted: 03/14/2023] [Indexed: 03/27/2023]
Abstract
AIMS To describe morbidity and mortality trends of type 2 diabetes in Australia, from 1990 to 2019, compared with similar sociodemographic index (SDI) countries. METHODS Australia-specific Global Burden of Diseases data were used to estimate age-standardised, age-specific, and sex-specific rates for prevalence, years lived with disability (YLDs), years of life lost (YLLs), disability-adjusted life years (DALYs), and deaths due to type 2 diabetes between 1990 and 2019. Australian data were compared with 14 similar SDI countries. RESULTS Type 2 diabetes increased in Australia between 1990 and 2019. The age-standardised prevalence increased from 1,985 [95% Confidence Interval (CI): 1,786.7-2195.3] per 100,000 population, to 3,429 [95% CI 3,053.3-3,853.7]. Cases tripled, from 379,532 [342,465-419,475] to 1,307,261 [1,165,522-1,461,180]. The age-standardised death rates doubled, from 2,098 [1,953-2,203] per 100,000, to 4,122 [3,617-4,512]. DALYs doubled, from 70,348 [59,187-83,500] to 169,763 [129,792-216,150], with increases seen in YLDs and YLLs. Men displayed higher rates. Compared to similar SDI countries, Australia ranked 4th in terms of burden for type 2 diabetes. CONCLUSIONS The burden of type 2 diabetes in Australia has increased considerably over three decades. There is an urgent need to prioritise resource allocation for prevention programs, screening initiatives to facilitate early detection, and effective and accessible management strategies for the large proportion of the population impacted by type 2 diabetes.
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Affiliation(s)
- Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - George Siopis
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Surbhi Sood
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Riaz Uddin
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Teketo Tegegne
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Judi Porter
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - David W Dunstan
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia; Baker-Deakin Department Lifestyle and Diabetes, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
| | | | - Paul Zimmet
- Department of Medicine, Monash University, Melbourne, VIC, Australia.
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Ralph Maddison
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
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13
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Hall RL, George ES, Tierney AC, Reddy AJ. Effect of Dietary Intervention, with or without Cointerventions, on Inflammatory Markers in Patients with Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis. Adv Nutr 2023; 14:475-499. [PMID: 36796436 DOI: 10.1016/j.advnut.2023.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 12/21/2022] [Accepted: 01/06/2023] [Indexed: 02/04/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) encompasses a spectrum of disease from simple steatosis to nonalcoholic steatohepatitis, with inflammatory cytokines and adipokines identified as drivers of disease progression. Poor dietary patterns are known to promote an inflammatory milieu, although the effects of specific diets remain largely unknown. This review aimed to gather and summarize new and existing evidence on the effect of dietary intervention on inflammatory markers in patients with NAFLD. The electronic databases MEDLINE, EMBASE, CINAHL, and Cochrane were searched for clinical trials which investigated outcomes of inflammatory cytokines and adipokines. Eligible studies included adults >18 y with NAFLD, which compared a dietary intervention with an alternative diet or control (no intervention) group or were accompanied by supplementation or other lifestyle interventions. Outcomes for inflammatory markers were grouped and pooled for meta-analysis where heterogeneity was allowed. Methodological quality and risk of bias were assessed using the Academy of Nutrition and Dietetics Criteria. Overall, 44 studies with a total of 2579 participants were included. Meta-analyses indicated intervention with an isocaloric diet plus supplement was more effective in reducing C-reactive protein (CRP) [standard mean difference (SMD): 0.44; 95% CI: 0.20, 0.68; P = 0.0003] and tumor necrosis factor-alpha (TNF-α) (SMD: 0.74; 95% CI: 0.02, 1.46; P = 0.03) than an isocaloric diet alone. No significant weighting was shown between a hypocaloric diet with or without supplementation for CRP (SMD: 0.30; 95% CI: -0.84, 1.44; P = 0.60) and TNF-α (SMD: 0.01; 95% CI: -0.43, 0.45; P = 0.97). In conclusion, hypocaloric and energy-restricted diets alone or with supplementation, and isocaloric diets with supplementation were shown to be most effective in improving the inflammatory profile of patients with NAFLD. To better determine the effectiveness of dietary intervention alone on a NAFLD population, further investigations of longer durations, with larger sample sizes are required.
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Affiliation(s)
- Renate L Hall
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia
| | - Elena S George
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia; Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Audrey C Tierney
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia; School of Allied Health, Health Implementation Science and Technology Research Cluster, Health Research Institute, University of Limerick, Limerick, Ireland
| | - Anjana J Reddy
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia; Exercise and Nutrition Research Program, Mary MacKillop Institute for Health Research, Australian Catholic University, Fitzroy, Australia.
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14
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Dening J, Zacharia K, Ball K, George ES, Islam SMS. Exploring engagement with a web-based dietary intervention for adults with type 2 diabetes: A mixed methods evaluation of the T2Diet study. PLoS One 2022; 17:e0279466. [PMID: 36584072 PMCID: PMC9803196 DOI: 10.1371/journal.pone.0279466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Improved understanding of participant engagement in web-based dietary interventions is needed. Engagement is a complex construct that may be best explored through mixed methods to gain comprehensive insight. To our knowledge, no web-based dietary intervention in people with type 2 diabetes (T2D) has previously used a mixed methods approach. The aim of this study was to explore factors that may contribute to effective engagement in a web-based dietary program for people with T2D. METHODS This study employed a mixed methods intervention design, with a convergent design embedded for post-intervention evaluation. The convergent design collected and analyzed quantitative and qualitative data independent of each other, with the two datasets merged/compared during results/interpretation. Quantitative data collected from intervention group participants (n = 40) were self-administered questionnaires and usage data with average values summarized. Qualitative data were participant semi-structured interviews (n = 15) incorporating a deductive-inductive thematic analysis approach. RESULTS The results from the quantitative and qualitative data indicated positive overall engagement with the web-based dietary program. Factors that contributed to effective engagement were sustained frequency and intensity of engagement; structured weekly program delivery; participants affective engagement prior to and during the intervention, with positive affective states enhancing cognitive and behavioral engagement; and participants experience of value and reward. In addition, the user-centered development process employed prior to intervention delivery played an important role in facilitating positive engagement outcomes. CONCLUSION This study yielded novel findings by integrating qualitative and quantitative data to explore engagement with a web-based dietary program involving people with T2D. Effective engagement occurred in this intervention through a combination of factors related to usage and participants' affective, cognitive and behavioral states. The engagement outcomes that emerged will be useful to current and future researchers using digital technologies to deliver lifestyle interventions for T2D or other chronic health conditions.
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Affiliation(s)
- Jedha Dening
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne Burwood, Victoria, Australia
- * E-mail:
| | - Karly Zacharia
- Faculty of Health & Medicine, School of Health Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Kylie Ball
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne Burwood, Victoria, Australia
| | - Elena S. George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne Burwood, Victoria, Australia
| | - Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne Burwood, Victoria, Australia
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15
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George ES, Sood S, Kiss N, Daly RM, Nicoll AJ, Roberts SK, Baguley BJ. The Evidence Surrounding Non-Alcoholic Fatty Liver Disease in Individuals with Cancer: A Systematic Literature Review. Curr Oncol 2022; 30:48-74. [PMID: 36661654 PMCID: PMC9857873 DOI: 10.3390/curroncol30010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 12/16/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Emerging evidence indicates an association between non-alcoholic fatty liver disease (NAFLD), cancer development and mortality. Cancer treatment-induced metabolic and hepatic dysfunction may be associated with increased rates of NAFLD. The review aims to investigate current evidence surrounding NAFLD in adults (≥18 years) with cancer including prevalence, effect of cancer treatments, metabolic co-morbidities, and mortality. Embase, Scopus, PubMed, and CINAHL were searched from inception to December 2021 including randomized controlled trials and observational studies. Twenty-three articles were included, comprising 142,218 participants. The overall risk of bias for observational studies was determined as low for 10 studies and neutral for 12 studies, and the RCT was determined as some concerns. The prevalence of NAFLD, based on imaging or histology, in adults with cancer ranged from 0.5 to 81.3%, with higher prevalence in breast, colorectal and gynecological cancers. Higher rates of NAFLD were also seen in patients who (i) underwent treatments-including chemotherapy and hormone therapy and/or who (ii) had higher BMI or other metabolic co-morbidities. NAFLD was associated with an increase in all-cause and cancer-related mortality. Based on review results, it is recommended that further assessment is carried out to determine whether liver screening in high-risk patients is cost effective and if interventions can be implemented to improve hepatic and health outcomes in adults with cancer.
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Affiliation(s)
- Elena S. George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC 3125, Australia
- Gastroenterology Department, Alfred Health, Prahran, VIC 3004, Australia
| | - Surbhi Sood
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC 3125, Australia
| | - Nicole Kiss
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC 3125, Australia
- Allied Health Research, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
| | - Robin M. Daly
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC 3125, Australia
| | - Amanda J. Nicoll
- Gastroenterology Department, Eastern Health, Box Hill, VIC 3128, Australia
- Central Clinical School, Monash University, Clayton, VIC 3800, Australia
| | - Stuart K. Roberts
- Gastroenterology Department, Alfred Health, Prahran, VIC 3004, Australia
- Central Clinical School, Monash University, Clayton, VIC 3800, Australia
| | - Brenton J. Baguley
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC 3125, Australia
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16
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Sood S, Feehan J, Itsiopoulos C, Wilson K, Plebanski M, Scott D, Hebert JR, Shivappa N, Mousa A, George ES, de Courten B. Higher Adherence to a Mediterranean Diet Is Associated with Improved Insulin Sensitivity and Selected Markers of Inflammation in Individuals Who Are Overweight and Obese without Diabetes. Nutrients 2022; 14:nu14204437. [PMID: 36297122 PMCID: PMC9608711 DOI: 10.3390/nu14204437] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022] Open
Abstract
Insulin resistance (IR) and chronic low-grade inflammation are risk factors for chronic diseases including type 2 diabetes (T2D) and cardiovascular disease. This study aimed to investigate two dietary indices: Mediterranean Diet Score (MDS) and Dietary Inflammatory Index (DII®), and their associations with direct measures of glucose metabolism and adiposity, and biochemical measures including lipids, cytokines and adipokines in overweight/obese adults. This cross-sectional study included 65 participants (males = 63%; age 31.3 ± 8.5 years). Dietary intake via 3-day food diaries was used to measure adherence to MDS (0-45 points); higher scores indicating adherence. Energy-adjusted DII (E-DII) scores were calculated with higher scores indicating a pro-inflammatory diet. IR was assessed using hyperinsulinemic euglycemic clamps, insulin secretion by intravenous glucose tolerance test, adiposity by dual-energy X-ray absorptiometry, and circulating cytokine and adipokine concentrations by multiplex assays. Higher MDS was associated with greater insulin sensitivity (β = 0.179; 95%CI: 0.39, 0.318) after adjusting for age, sex and % body fat, and lower NF-κB, higher adiponectin and adipsin in unadjusted and adjusted models. Higher E-DII score was associated with increased total cholesterol (β = 0.364; 95%CI: 0.066, 0.390) and LDL-cholesterol (β = 0.305; 95%CI: 0.019, 0.287) but not with adiposity, glucose metabolism, cytokines or adipokines. Greater MDS appears to be associated with decreased IR and inflammatory markers in overweight/obese adults.
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Affiliation(s)
- Surbhi Sood
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Faculty of Health, Deakin University, Geelong, VIC 3216, Australia
| | - Jack Feehan
- Institute for Health and Sport, Victoria University, Footscray, VIC 3011, Australia
| | - Catherine Itsiopoulos
- Department of Medicine, Nursing and Health Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Kirsty Wilson
- Department of Medicine, Nursing and Health Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Magdalena Plebanski
- Department of Medicine, Nursing and Health Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - David Scott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Faculty of Health, Deakin University, Geelong, VIC 3216, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC 3168, Australia
| | - James R. Hebert
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29208, USA
| | - Nitin Shivappa
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29208, USA
| | - Aya Mousa
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, VIC 3168, Australia
| | - Elena S. George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Faculty of Health, Deakin University, Geelong, VIC 3216, Australia
| | - Barbora de Courten
- Department of Medicine, Nursing and Health Sciences, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC 3168, Australia
- Correspondence: ; Tel.: +61-3-9925-6474
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17
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Freer CL, George ES, Tan SY, Abbott G, Dunstan DW, Daly RM. Effect of progressive resistance training with weight loss compared with weight loss alone on the fatty liver index in older adults with type 2 diabetes: secondary analysis of a 12-month randomized controlled trial. BMJ Open Diabetes Res Care 2022; 10:10/5/e002950. [PMID: 36220197 PMCID: PMC9557256 DOI: 10.1136/bmjdrc-2022-002950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/31/2022] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) is highly prevalent (~75%) in people with type 2 diabetes (T2D). Since exercise and weight loss (WL) are recommended for the management of both NAFLD and T2D, this study examined whether progressive resistance training (PRT) plus WL could lead to greater improvements in the fatty liver index (FLI), an indicator of NAFLD, compared with WL alone in older adults with T2D. RESEARCH DESIGN AND METHODS This study represents a secondary analysis of a 12-month, two-arm randomised controlled trial including 36 overweight and obese adults (60-80 years) with T2D randomly allocated to supervised PRT plus WL (hypocaloric diet) (n=19) or WL plus sham (stretching) (n=17) for 6 months (phase I), followed by 6-months home-based training with ad libitum diet (phase II). FLI, which is an algorithm based on waist circumference, body mass index, triglycerides and gamma-glutamyl transferase, was assessed at baseline and every 3 months. Linear mixed models were used to analyse between-group differences over time, adjusting for baseline values. RESULTS At baseline, the mean±SD FLI was 76.6±18.5 and the likelihood of NAFLD (FLI >60) in all participants was 86%. Following phase I, both groups had similar statistically significant improvements in FLI (mean change (95% CI): PRT+WL, -12 (-20 to -4); WL, -9 (-15 to -4)), with no significant between-group difference. After the subsequent 6-month home-based phase, the improvements in FLI tended to persist in both groups (PRT+WL, -7 (-11 to -2); WL, -4 (-10 to 1)), with no between-group differences. CONCLUSIONS In older overweight adults with T2D, PRT did not enhance the benefits of WL on FLI, a predictor of NAFLD. TRIAL REGISTRATION NUMBER ACTRN12622000640707.
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Affiliation(s)
- Christine L Freer
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - Sze-Yen Tan
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - David W Dunstan
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition, Deakin University Faculty of Health, Geelong, Victoria, Australia
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18
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George ES, Forsyth AK, Reddy A, Itsiopoulos C, Roberts SK, Nicoll AJ, Ryan MC, Tierney AC. A Mediterranean and Low-Fat dietary intervention in Non-Alcoholic Fatty Liver Disease patients -Exploring participant experience and perceptions about dietary change. J Hum Nutr Diet 2022; 36:592-602. [PMID: 35962482 DOI: 10.1111/jhn.13069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/15/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND A Mediterranean Diet (MD) appears to be beneficial in NAFLD patients in Mediterranean countries, however the acceptability of a MD in non-Mediterranean populations has not been thoroughly explored. This study aimed to explore the acceptability, through understanding the barriers and enablers of MD and low-fat diet (LFD) interventions as perceived by Australian adults from multicultural backgrounds, with NAFLD, who participated. METHODOLOGY Semi-structured telephone interviews were performed with 23 NAFLD trial participants at the end of a 12-week dietary intervention in a multicentre, parallel, randomised clinical trial. Data was analysed using thematic analysis. RESULTS Participants reported that they enjoyed taking part in the MD and LFD interventions and perceived that they had positive health benefits from their participation. Compared to the LFD, the MD group placed greater emphasis on enjoyment and intention to maintain dietary changes. Novelty, convenience and the ability to swap food/meals were key enablers for the successful implementation for both of the dietary interventions. Flavour and enjoyment of food, expressed more prominently by MD intervention participants, were fundamental components of the diets with regard to reported adherence and intention to maintain dietary change. CONCLUSIONS Participants randomised to the MD reported greater acceptability of the diet than those randomised to the LFD, predominantly related to perceived novelty and palatability of the diet. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia.,School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia
| | - Adrienne K Forsyth
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.,School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Australia
| | - Anjana Reddy
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | | | - Stuart K Roberts
- Gastroenterology Department, Alfred Health, Prahran, Australia.,Central Clinical School, Monash University, Melbourne, Australia
| | | | - Marno C Ryan
- Gastroenterology Department, St Vincent's Hospital, Australia
| | - Audrey C Tierney
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.,School of Allied Health, Health Implementation Science and Technology Research Group, Health Research Institute, University of Limerick, Limerick, Ireland
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19
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Bennell KL, Jones SE, Hinman RS, McManus F, Lamb KE, Quicke JG, Sumithran P, Prendergast J, George ES, Holden MA, Foster NE, Allison K. Effectiveness of a telehealth physiotherapist-delivered intensive dietary weight loss program combined with exercise in people with knee osteoarthritis and overweight or obesity: study protocol for the POWER randomized controlled trial. BMC Musculoskelet Disord 2022; 23:733. [PMID: 35907828 PMCID: PMC9338658 DOI: 10.1186/s12891-022-05685-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 07/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity is associated with knee osteoarthritis (OA). Weight loss, alongside exercise, is a recommended treatment for individuals with knee OA and overweight/obesity. However, many patients cannot access weight loss specialists such as dietitians. Innovative care models expanding roles of other clinicians may increase access to weight loss support for people with knee OA. Physiotherapists may be well placed to deliver such support. This two-group parallel, superiority randomized controlled trial aims to compare a physiotherapist-delivered diet and exercise program to an exercise program alone, over 6 months. The primary hypothesis is that the physiotherapist-delivered diet plus exercise program will lead to greater weight loss than the exercise program. METHODS 88 participants with painful knee OA and body mass index (BMI) > 27 kg/m2 will be recruited from the community. Following baseline assessment, participants will be randomised to either exercise alone or diet plus exercise groups. Participants in the exercise group will have 6 consultations (20-30 min) via videoconference with a physiotherapist over 6 months for a strengthening exercise program, physical activity plan and educational/exercise resources. Participants in the diet plus exercise group will have 6 consultations (50-75 min) via videoconference with a physiotherapist prescribing a ketogenic very low-calorie diet with meal replacements and educational resources to support weight loss and healthy eating, plus the intervention of the exercise only group. Outcomes are measured at baseline and 6 months. The primary outcome is percentage change in body weight measured by a blinded assessor. Secondary outcomes include self-reported knee pain, physical function, global change in knee problems, quality of life, physical activity levels, and internalised weight stigma, as well as BMI, waist circumference, waist-to-hip ratio, physical performance measures and quadriceps strength, measured by a blinded assessor. Additional measures include adherence, adverse events, fidelity and process measures. DISCUSSION This trial will determine whether a physiotherapist-delivered diet plus exercise program is more effective for weight loss than an exercise only program. Findings will inform the development and implementation of innovative health service models addressing weight management and exercise for patients with knee OA and overweight/obesity. TRIAL REGISTRATION NIH US National Library of Medicine, Clinicaltrials.gov NCT04733053 (Feb 1 2021).
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Affiliation(s)
- Kim L Bennell
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, The University of Melbourne, Melbourne, Australia.
| | - Sarah E Jones
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
| | - Rana S Hinman
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
| | - Fiona McManus
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Karen E Lamb
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia.,Methods and Implementation Support for Clinical Health research Hub, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Jonathan G Quicke
- School of Medicine, Keele University, Keele, UK.,Chartered Society of Physiotherapy, Chancery Exchange, London, UK
| | - Priya Sumithran
- Department of Medicine, The University of Melbourne, Melbourne, Australia
| | | | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Australia
| | | | - Nadine E Foster
- School of Medicine, Keele University, Keele, UK.,STARS Education and Research Alliance, Surgical Treatment and Rehabilitation Service (STARS), The University of Queensland and Metro North Health, Brisbane, Australia
| | - Kim Allison
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
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20
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George ES, Reddy A, Nicoll AJ, Ryan MC, Itsiopoulos C, Abbott G, Johnson NA, Sood S, Roberts SK, Tierney AC. Impact of a Mediterranean diet on hepatic and metabolic outcomes in non-alcoholic fatty liver disease: The MEDINA randomised controlled trial. Liver Int 2022; 42:1308-1322. [PMID: 35357066 PMCID: PMC9544144 DOI: 10.1111/liv.15264] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/31/2022] [Accepted: 03/28/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is predominantly managed by lifestyle intervention, in the absence of effective pharmacotherapies. Mediterranean diet (MedDiet) is the recommended diet, albeit with limited evidence. AIMS To compare an ad libitum MedDiet to low-fat diet (LFD) in patients with NAFLD for reducing intrahepatic lipids (IHL) by proton magnetic resonance spectroscopy (1 H-MRS). Secondary outcomes include insulin resistance by homeostatic model of assessment (HOMA-IR), visceral fat by bioelectrical impedance analysis (BIA), liver stiffness measurement (LSM) and other metabolic outcomes. METHODS In this parallel multicentre RCT, subjects were randomised (1:1) to MedDiet or LFD for 12 weeks. RESULTS Forty-two participants (25 females [60%], mean age 52.3 ± 12.6 years) were included, 23 randomised to LFD and 19 to MedDiet.; 39 completed the study. Following 12 weeks, there were no between-group differences. IHL improved significantly within the LFD group (-17% [log scale]; p = .02) but not within the MedDiet group (-8%, p = .069). HOMA-IR reduced in the LFD group (6.5 ± 5.6 to 5.5 ± 5.5, p < .01) but not in the MedDiet group (4.4 ± 3.2 to 3.9 ± 2.3, p = .07). No differences were found for LSM (MedDiet 7.8 ± 4.0 to 7.6 ± 5.2, p = .429; LFD 11.8 ± 14.3 to 10.8 ± 10.2 p = .99). Visceral fat reduced significantly in both groups; LFD (-76% [log scale], p = <.0005), MedDiet (-61%, p = <.0005). CONCLUSIONS There were no between-group differences for hepatic and metabolic outcomes when comparing MedDiet to LFD. LFD improved IHL and insulin resistance. Significant improvements in visceral fat were seen within both groups. This study highlights provision of dietary interventions in free-living adults with NAFLD is challenging.
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Affiliation(s)
- Elena S. George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition SciencesDeakin UniversityGeelongAustralia
- School of Allied Health, Human Services and SportLa Trobe UniversityAustralia
| | - Anjana Reddy
- School of Allied Health, Human Services and SportLa Trobe UniversityAustralia
| | | | - Marno C. Ryan
- Department of Gastroenterology and HepatologySt Vincent’s HospitalFitzroyAustralia
| | - Catherine Itsiopoulos
- School of Allied Health, Human Services and SportLa Trobe UniversityAustralia
- School of Health and Biomedical SciencesRMIT UniversityMelbourneAustralia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition SciencesDeakin UniversityGeelongAustralia
| | - Nathan A. Johnson
- The Boden Collaboration for Obesity, Nutrition, Exercise and Eating DisordersThe University of SydneySydneyNew South WalesAustralia
| | - Siddharth Sood
- Department of GastroenterologyMelbourne HealthMelbourneAustralia
| | - Stuart K. Roberts
- Department of GastroenterologyAlfred HealthPrahranAustralia
- Central Clinical SchoolMonash UniversityClaytonAustralia
| | - Audrey C. Tierney
- School of Allied Health, Human Services and SportLa Trobe UniversityAustralia
- School of Allied Health, Health Implementation Science and Technology Centre, Health Research InstituteUniversity of LimerickIreland
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21
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George ES, Daly RM, Tey SL, Brown R, Wong THT, Tan SY. Perspective: Is it Time to Expand Research on "Nuts" to Include "Seeds"? Justifications and Key Considerations. Adv Nutr 2022; 13:1016-1027. [PMID: 35333288 PMCID: PMC9340969 DOI: 10.1093/advances/nmac028] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 01/29/2022] [Accepted: 03/22/2022] [Indexed: 12/18/2022] Open
Abstract
The health benefits of nuts reported throughout the literature are extensive and well established for reducing the risk of, and managing several chronic conditions such as cardiovascular disease, type 2 diabetes, nonalcoholic fatty liver disease, and cognition. Despite their comparable nutrient profile to nuts, seeds are often not assessed in clinical and epidemiological studies. Interestingly, dietary guidelines and recommendations often refer to "nuts and seeds" collectively, even though they are not consistently examined together in nutrition research when determining associated health benefits. The purpose of this review is to call for future nutrition research to consider combining nuts and seeds. This review provides justification for this proposal by summarizing current definitions for nuts and seeds and highlighting the similarities or dissimilarities in their nutrient compositions. Following this, we summarize current evidence on the health benefits of nuts and seeds, research gaps that should be addressed, and considerations for future research using both epidemiological and interventional study designs.
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Affiliation(s)
- Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Siew Ling Tey
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Rachel Brown
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Tommy Hon Ting Wong
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong Special Administrative Region, People's Republic of China
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22
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Dening J, George ES, Ball K, Mohebbi M, Shariful Islam SM. Randomised controlled trial of a web-based low carbohydrate diet intervention for adults with type 2 diabetes: the T2Diet study protocol. BMJ Open 2022; 12:e054594. [PMID: 35190434 PMCID: PMC8862456 DOI: 10.1136/bmjopen-2021-054594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Type 2 diabetes (T2D) management frequently involves a multidisciplinary care team. However, standard care for patients with T2D is the central role of the general practice physician, and consists of routine appointments to monitor glycaemic status and overall health. Dietary modification is an essential component of T2D management. Evidence suggests that a low carbohydrate diet (LCD) provides better clinical outcomes for people with T2D compared with other diets. However, providing dietary support in face-to-face settings is challenged by issues of availability and accessibility. Provided in conjunction with standard care, digital interventions can help bridge this gap. The objective of this paper is to describe the protocol of a randomised controlled trial (RCT) of a web-based intervention that will evaluate the effectiveness of standard care plus web-based LCD intervention when compared with standard care only. METHODS AND ANALYSIS In a two-arm parallel RCT, 100 adults with non-insulin-dependent T2D aged between 40 and 89 years will be randomised to either a theoretically informed 16-week automated web-based LCD intervention plus standard care or standard care only. LCD recommendations emphasise consuming nutrient-dense whole foods and encourage a daily carbohydrate goal of 50-100 g, with an objective of achieving 10% to <26% carbohydrates from total energy intake. Assessments will take place at baseline and 16 weeks. The primary outcome will be haemoglobin A1c. Additional data collected will include dietary intake, self-efficacy, weight and height, anti-diabetes medication and dosages, and diabetes-related comorbidities. Process evaluation will consist of a mixed-methods assessment of website engagement metrics, user experience and participants' perspectives. ETHICS AND DISSEMINATION All study procedures have been approved by the Deakin University Human Research Ethics Committee (2020-349). Study findings will be disseminated widely through public, professional and academic presentation and publication. TRIAL REGISTRATION NUMBER Australian New Zealand Clinical Trials Registry (ACTRN12621000096853).
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Affiliation(s)
- Jedha Dening
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - Kylie Ball
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - Mohammadreza Mohebbi
- Biostatistics Unit, Faculty of Health, Deakin University, Burwood, Victoria, Australia
| | - Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
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23
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Dening J, George ES, Ball K, Islam SMS. User-centered development of a digitally-delivered dietary intervention for adults with type 2 diabetes: The T2Diet study. Internet Interv 2022; 28:100505. [PMID: 35242592 PMCID: PMC8861390 DOI: 10.1016/j.invent.2022.100505] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/01/2022] [Accepted: 02/09/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Web-based interventions can help address challenges of accessibility and availability of dietary support for people with type 2 diabetes (T2D). However, concerns regarding adherence and engagement in web-based interventions have been noted. Implementing a user-centered approach to intervention development has been shown to encourage better participant engagement. The overarching aim of this paper was to describe the user-centered approach used in the T2Diet Study to develop a new web-based dietary intervention for adults with T2D, exploring strategies for enhancing adherence and engagement. METHODS Intervention development was based on a flexible iterative user-centered approach to enable new product development. Twenty-one adults with T2D were engaged in six guided discussion groups across four iterative development phases, alongside reference to evidence and theory throughout the process. The phases of user inquiry progressed from broad discussion on areas to support dietary needs; to design feedback on aspects of site layout; through to further feedback on aesthetics and functionality; then into a two-week field test followed by final user inquiry and participation in user experience polls. A hybrid approach of thematic data analysis was used, incorporating both a data-driven inductive approach and a deductive approach based on a priori identification of themes. RESULTS Group discussion across the four phases highlighted factors the participants considered may motivate them to adhere and engage, which predominantly included relevance of resources, clear and simple positive communication, and flexibility for personal tailoring. Participant feedback provided an actionable list of intervention developments and input to inform intervention structure and theoretical framework. The two-week field test highlighted factors participants valued in terms of the user experience, most notably usability and accessibility. Additionally, the field test indicated a positive user experience, with no significant usability issues identified. CONCLUSION This paper provided the first detailed report of a user-centered approach to iterative development in the context of a web-based T2D dietary intervention. The insights will be useful to inform future digitally-delivered dietary interventions for adults with T2D or to inform a similar user-centered approach for other chronic health conditions.
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Affiliation(s)
- Jedha Dening
- Corresponding author at: Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia.
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24
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George ES, Sood S, Daly RM, Tan SY. Is there an association between non-alcoholic fatty liver disease and cognitive function? A systematic review. BMC Geriatr 2022; 22:47. [PMID: 35016619 PMCID: PMC8753832 DOI: 10.1186/s12877-021-02721-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 12/14/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is represented as the most common liver disease worldwide. NAFLD is associated with metabolic risk factors underpinned by insulin resistance, inflammation and endothelial dysfunction, leading to extrahepatic changes in central nervous diseases such as cognitive impairment, Alzheimer's disease and dementia. The aim of the review is to explore the association between NAFLD and cognitive function. METHODS Using the PRISMA guidelines, a systematic electronic literature search was conducted in four databases: MEDLINE, PsychINFO, Embase and CINAHL from inception until March 2021. Neuropsychological tests utilised within each study were grouped into relevant cognitive domains including 'general cognition', 'reasoning', 'mental speed, attention and psychomotor speed', 'memory and learning', 'language', 'visuospatial perception' and 'ideas, abstraction, figural creations and mental flexibility'. RESULTS Eleven observational studies that involved 7978 participants with a mean age of 51 years were included. Those with NAFLD had poor cognitive performance in three cognitive domains, including 'general cognition', 'mental speed, attention and psychomotor speed', and 'ideas, abstraction, figural creations and mental flexibility'. CONCLUSION The observed results from the 11 included studies showed that NAFLD was associated with lower cognitive performance across several domains. However, studies conducted to date are limited to observational designs and are heterogeneous with varying diagnostic tools used to assess cognitive function. TRIAL REGISTRATION PROSPERO Registration: CRD42020161640 .
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Affiliation(s)
- Elena S George
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, Victoria, 3220, Australia.
| | - Surbhi Sood
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, Victoria, 3220, Australia
| | - Robin M Daly
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, Victoria, 3220, Australia
| | - Sze-Yen Tan
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, Victoria, 3220, Australia
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25
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Cardoso BR, Tan SY, Daly RM, Via JD, Georgousopoulou EN, George ES. Intake of Nuts and Seeds Is Associated with a Lower Prevalence of Nonalcoholic Fatty Liver Disease in US Adults: Findings from 2005-2018 NHANES. J Nutr 2021; 151:3507-3515. [PMID: 34522969 DOI: 10.1093/jn/nxab253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/20/2020] [Accepted: 07/08/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease globally. Nuts and seeds, due to their unique nutrient composition, may provide health benefits for the prevention of NAFLD. To date, no research has investigated the association between nut and seed intake and NAFLD prevalence in a non-Mediterranean Western population. OBJECTIVES This study aimed to explore the association between nut and seed intake with NAFLD and metabolic biomarkers in a US representative sample. METHODS This cross-sectional study used data from 25,360 adults involved in the 2005-2018 NHANES, including adults (aged ≥18 y) with negative serology for hepatitis B and C and nonexcessive alcohol consumption. NAFLD was assessed using the fatty liver index (FLI); metabolic biomarkers were also assessed; nut and seed intake was evaluated from two 24-h dietary recalls. ANOVA and Poisson regression were used to establish the relation between nut and seed intake categories and NAFLD prevalence. RESULTS Nut and seed consumption was associated with a reduced prevalence of NAFLD. In females, in the fully adjusted model, this was significant across all nut and seed consumption categories but was most prominent in the moderate consumption group (7%, 15%, and 14% risk reduction in low, moderate, and adequate consumption categories, respectively, compared with nonconsumers). In males, moderate intake of nuts and seeds demonstrated a significantly lower prevalence of NAFLD (9%) compared with nonconsumers. CONCLUSIONS Daily consumption for nuts and seeds was associated with a lower prevalence of NAFLD in non-Mediterranean, US adults, although the benefits seem to be greater in females across all categories of nut and seed consumption groups compared with nonconsumers. Both males and females presented with lower prevalence of NAFLD with intakes of 15-30 g/d.
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Affiliation(s)
- Barbara R Cardoso
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia.,Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Victoria, Australia
| | - Sze-Yen Tan
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Jack Dalla Via
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia.,Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia
| | - Ekavi N Georgousopoulou
- School of Medicine Sydney, University of Notre Dame Australia, Sydney, New South Wales, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
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26
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Tan SY, Georgousopoulou EN, Cardoso BR, Daly RM, George ES. Associations between nut intake, cognitive function and non-alcoholic fatty liver disease (NAFLD) in older adults in the United States: NHANES 2011-14. BMC Geriatr 2021; 21:313. [PMID: 34001034 PMCID: PMC8127249 DOI: 10.1186/s12877-021-02239-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/16/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Nuts are nutrient-rich and reported to provide some cognitive and cardiometabolic health benefits, but limited studies have focused on older adults. This study investigated the cross-sectional relationship between habitual nut intake, dietary pattern and quality, cognition and non-alcoholic fatty liver disease (NAFLD) in older adults. METHODS Older adults (≥ 60 years) from the NHANES 2011-12 and 2013-14 cohorts, who had complete data on cognitive function (as CERAD total, delayed recall, animal fluency and digit-symbol substitution test) and variables to calculate the Fatty Liver Index (FLI), an indicator of NAFLD, were included (n = 1848). Nut intake and diet quality (Healthy Eating Index 2015) were determined using two 24-hour diet recalls. Participants were categorised into one of four groups based on their habitual nut intake: non-consumers (0 g/d), low intake (0.1-15.0 g/d), moderate intake (15.1-30.0 g/d) or met recommendation (> 30 g/d), with all outcomes compared between these nut intake groups. RESULTS Cognitive scores of older adults were the lowest in non-consumers and significantly highest in the moderate intake group, with no further increase in those who consumed nuts more than 30 g/d (p < 0.007). FLI was the lowest among older adults with moderate nut intake but the associations disappeared after adjusting for covariates (p = 0.329). Moderate nut intake was also associated with better immediate and delayed memory in older adults with high risk of NAFLD (FLI ≥ 60) (B = 1.84 and 1.11, p < 0.05 respectively). Higher nutrient intake and better diet quality (p < 0.001) were seen with higher nut intake but did not influence energy from saturated fat intake. Factor analysis revealed 'Nuts and oils' as one of the four major dietary patterns associated with better cognition and lower FLI scores. CONCLUSIONS Moderate nut intake (15.1-30.0 g/d) may be sufficient for better cognitive performance, but not NAFLD risk of older adults in the US.
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Affiliation(s)
- Sze-Yen Tan
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Victoria, 3220, Geelong, Australia.
| | - Ekavi N Georgousopoulou
- School of Medicine Sydney, University of Notre Dame Australia, New South Wales, 2010, Darlinghurst Sydney, Australia
| | - Barbara R Cardoso
- Department of Nutrition, Dietetics and Food, Monash University, 3168, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Victoria, 3220, Geelong, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Victoria, 3220, Geelong, Australia
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Reddy AJ, George ES, Roberts SK, Tierney AC. Effect of dietary intervention, with or without co-interventions, on inflammatory markers in patients with nonalcoholic fatty liver disease: a systematic literature review. Nutr Rev 2021; 77:765-786. [PMID: 31361003 DOI: 10.1093/nutrit/nuz029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CONTEXT Nonalcoholic fatty liver disease (NAFLD) represents a spectrum of liver disorders, ranging from simple steatosis to nonalcoholic steatohepatitis (NASH), with inflammation acting as a key driver in its pathogenesis and progression. Diet has the potential to mediate the release of inflammatory markers; however, little is known about the effects of various diets. OBJECTIVE This systematic review aimed to evaluate the effect of dietary interventions on cytokines and adipokines in patients with NAFLD. DATA SOURCES The electronic databases MEDLINE, EMBASE, CINAHL, and Cochrane Library were searched for clinical trials investigating dietary interventions, with or without supplementation, on cytokines and adipokines in NAFLD patients. DATA EXTRACTION Basic characteristics of populations, dietary intervention protocol, cytokines, and adipokines were extracted for each study. Quality of evidence was assessed using the American Dietetic Association criteria. DATA ANALYSIS Nineteen studies with a total of 874 participants were included. The most frequently reported inflammatory outcomes were C-reactive protein (CRP), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), adiponectin, and leptin. Hypocaloric, isocaloric, or low-fat diets significantly (P < 0.05) lowered levels of CRP, TNF-α, and adiponectin. The addition of nutraceutical or pharmacological supplementation to dietary interventions appeared to elicit additional benefits for all of the most frequently reported inflammatory markers. CONCLUSIONS Hypo- or isocaloric diets alone, or with co-interventions that included a nutraceutical or pharmacological supplementation, appear to improve the inflammatory profile in patients with NAFLD. Thus, anti-inflammatory diets may have the potential to improve underlying chronic inflammation that underpins the pathophysiological mechanisms of NAFLD. In the absence of any known liver-sensitive markers, the use of cytokines and adipokines as a surrogate marker of liver disease should be further investigated in well-controlled trials.
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Affiliation(s)
- Anjana J Reddy
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Victoria, Australia
| | - Elena S George
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Victoria, Australia
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
- Department of Nutrition, Alfred Health, Prahran, Victoria, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Prahran, Victoria, Australia
| | - Audrey C Tierney
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Victoria, Australia
- Department of Nutrition, Alfred Health, Prahran, Victoria, Australia
- School of Allied Health, University of Limerick, Limerick, Ireland
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George ES, Sood S, Broughton A, Cogan G, Hickey M, Chan WS, Sudan S, Nicoll AJ. The Association between Diet and Hepatocellular Carcinoma: A Systematic Review. Nutrients 2021; 13:nu13010172. [PMID: 33430001 PMCID: PMC7826815 DOI: 10.3390/nu13010172] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 12/15/2022] Open
Abstract
Globally, liver cancer is the sixth most common cause of cancer mortality, with hepatocellular carcinoma (HCC) being the most common type of primary liver cancer. Emerging evidence states that diet is recognised as a potential lifestyle-related risk factor for the development of HCC. The aim of this systematic review is to determine whether there is an association between diet and the development of HCC. Using the PRISMA guidelines, three databases (MEDLINE Complete, CINAHL and Embase) were systematically searched, and studies published until July 2020 were included. Thirty observational studies were selected. The protocol was registered with PROSPERO (CRD42019135240). Higher adherence to the Mediterranean dietary pattern, Alternative Healthy Eating Index-2010, the Urban Prudent Dietary Pattern, the Traditional Cantonese Dietary Pattern, intake of vegetables, wholegrains, fish, poultry, coffee, macronutrients such as monounsaturated fats and micronutrients such as vitamin E, vitamin B9, β-carotene, manganese and potassium were associated with a reduced risk of HCC. The results suggest a potential role of diet in the development of HCC. Further quantitative research needs to be undertaken within a range of populations to investigate diet and the relationship with HCC risk.
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Affiliation(s)
- Elena S. George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
- Correspondence: ; Tel.: +61-3-924-68622
| | - Surbhi Sood
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Anna Broughton
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Georgia Cogan
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Megan Hickey
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Wai San Chan
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Sonal Sudan
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong 3217, Australia; (S.S.); (A.B.); (G.C.); (M.H.); (W.S.C.); (S.S.)
| | - Amanda J. Nicoll
- Department of Gastroenterology, Eastern Health, Box Hill 3128, Australia;
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Islam SMS, George ES, Maddison R. Effectiveness of a mobile phone text messaging intervention on dietary behaviour in patients with type 2 diabetes: a post-hoc analysis of a randomised controlled trial. Mhealth 2021; 7:10. [PMID: 33634193 PMCID: PMC7882278 DOI: 10.21037/mhealth-2020-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 07/08/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Evidence suggests that mobile phone health (mHealth) programs may improve healthy behaviours and clinical outcomes in patients with type 2 diabetes mellitus (T2DM). However, data on mHealth dietary behaviour is scarce in low-and-middle-income countries. This study aims to determine the effectiveness of a text messaging program on dietary habits in patients with T2DM. METHODS We performed a post-hoc analysis of a randomised controlled trial of text messaging intervention in 236 patients with T2DM recruited from a tertiary hospital. Data were collected on socio-demographics, mobile phone use, family and medical history, self-reported diseases, medication use, health-seeking behaviour, diet and physical activity. Dietary behaviour was assessed using a modified version of WHO STEPS and the Indian Migration Study Food Frequency Questionnaire. Intervention participants received one message/day over six months focusing on lifestyle modification. Dietary intake of fruits, vegetables, sugar beverages and teaspoons of sugar in tea/coffee were determined in serves-per-week and were analysed using Chi-square tests. Poisson regression models, adjusted for age, sex and baseline values following an intention-to-treat approach were performed and expressed as an estimate of effect size. RESULTS At 6 months, the adjusted difference in vegetable consumption was -0.02 serves/week [95% confidence interval (CI): -0.11-0.06, P>0.05] and fruit intake was 0.02 serves/week (95% CI: -0.15-0.21, P>0.05). Consumption of sugar beverages reduced in both groups at 6 months with an adjusted difference of -0.34 serves/week (95% CI: -1.10-0.42, P>0.05). Teaspoons of sugar in tea reduced to 0.1±0.3 teaspoons/week in the control group, however, remained the same at 0.2±0.6 teaspoons/week in the intervention group with an adjusted difference of 0.94 teaspoons/week (95% CI: 0.04-1.84, P<0.05). CONCLUSIONS Our results suggest that a text messaging program did not significantly improve dietary behaviour in patients with T2DM. Further studies are warranted to explore the effectiveness of text messaging on dietary behaviour in adults with T2DM. TRIAL REGISTRATION German Clinical Trials Register DRKS00005188, http://www.drks.de.
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Affiliation(s)
- Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Ralph Maddison
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
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30
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Tierney AC, Rumble CE, Billings LM, George ES. Effect of Dietary and Supplemental Lycopene on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis. Adv Nutr 2020; 11:1453-1488. [PMID: 32652029 PMCID: PMC7666898 DOI: 10.1093/advances/nmaa069] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 06/20/2019] [Accepted: 05/13/2020] [Indexed: 12/25/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally and the presence of ≥1 cardiovascular risk factors elevates total risk. Lycopene, a carotenoid with high antioxidant capacity, may be protective. The aim of this systematic review and meta-analyses is to determine the efficacy of consuming dietary and/or supplemental lycopene on cardiovascular risk factors. Using the PRISMA guidelines, 4 databases were systematically searched from inception: Medline, Cinahl, Proquest, and Scopus. Intervention trials assessing dietary or supplemental lycopene on CVD outcomes were included. The Cochrane Risk-of-Bias tool was used to assess the quality of the included papers. Pooled analysis was conducted using outcomes with available data. Forty-three studies were included. Lycopene interventions were highly variable (supplement with or without food, based as tomato juice/paste/raw product, or combined with olive oil), the dose ranged from 1.44 to 75 mg lycopene/d and was not reported in 11 of 43 included studies. Studies reported conflicting findings for the effect of lycopene on cardiovascular risk factors, This was supported by meta-analyses where there were no significant differences between lycopene intervention and control groups for blood pressure and lipids (total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides). This was observed for overall groups and in subgroup analyses for individuals with elevated risk factor concentrations at baseline. Lycopene interventions for cardiovascular risk factors were highly variable across studies in both the dosage provided and the mode of delivery (supplement or food based). As such, there are conflicting findings regarding the efficacy of lycopene to improve cardiovascular risk factors. This systematic review was registered with PROSPERO as CRD42018112174.
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Affiliation(s)
- Audrey C Tierney
- School of Allied Health and Health Implementation Science and Technology Group, Health Research Institute, University of Limerick, Limerick, Ireland
- School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
| | - Chloe E Rumble
- School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
| | - Lauren M Billings
- School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
| | - Elena S George
- School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
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Sarapis K, Thomas CJ, Hoskin J, George ES, Marx W, Mayr HL, Kennedy G, Pipingas A, Willcox JC, Prendergast LA, Itsiopoulos C, Moschonis G. The Effect of High Polyphenol Extra Virgin Olive Oil on Blood Pressure and Arterial Stiffness in Healthy Australian Adults: A Randomized, Controlled, Cross-Over Study. Nutrients 2020; 12:nu12082272. [PMID: 32751219 PMCID: PMC7468912 DOI: 10.3390/nu12082272] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023] Open
Abstract
Extra virgin olive oil (EVOO) is suggested to be cardioprotective, partly due to its high phenolic content. We investigated the effect of extra virgin high polyphenol olive oil (HPOO) versus low polyphenol olive oil (LPOO) on blood pressure (BP) and arterial stiffness in healthy Australian adults. In a double-blind, randomized, controlled cross-over trial, 50 participants (age 38.5 ± 13.9 years, 66% female) were randomized to consume 60 mL/day of either HPOO (360 mg/kg polyphenols) or LPOO (86 mg/kg polyphenols) for three weeks. Following a two-week washout period, participants crossed over to consume the alternate oil. Anthropometric data, peripheral BP, central BP and arterial stiffness were measured at baseline and follow up. No significant differences were observed in the changes from baseline to follow up between the two treatments. However, a significant decrease in peripheral and central systolic BP (SBP) by 2.5 mmHg (95% CI: −4.7 to −0.3) and 2.7 mmHg (95% CI: −4.7 to −0.6), respectively, was observed after HPOO consumption. Neither olive oil changed diastolic BP (DBP) or measures of arterial stiffness. The reductions in SBP after HPOO consumption provide evidence for a potentially widely accessible dietary intervention to prevent cardiovascular disease in a multiethnic population. Longer intervention studies and/or higher doses of EVOO polyphenols are warranted to elucidate the potential effect on DBP and arterial stiffness.
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Affiliation(s)
- Katerina Sarapis
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
| | - Colleen J. Thomas
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Melbourne 3086, Australia;
| | - Johanna Hoskin
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
| | - Elena S. George
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong 3220, Australia
| | - Wolfgang Marx
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
- Impact (the Institute for Mental and Physical Health and Clinical Translation), Food & Mood Centre, Deakin University, Geelong 3220, Australia
| | - Hannah L. Mayr
- School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (H.L.M.); (C.I.)
- Bond University Nutrition and Dietetics Research Group, Faculty of Health Sciences and Medicine, Bond University, Brisbane 4226, Australia
- Department of Nutrition and Dietetics, Princess Alexandra Hospital, Brisbane 4102, Australia
| | - Greg Kennedy
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne 3122, Australia; (G.K.); (A.P.)
| | - Andrew Pipingas
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne 3122, Australia; (G.K.); (A.P.)
| | - Jane C. Willcox
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
| | - Luke A. Prendergast
- Department of Mathematics and Statistics, School of Engineering and Mathematical Sciences, La Trobe University, Melbourne 3086, Australia;
| | - Catherine Itsiopoulos
- School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (H.L.M.); (C.I.)
- College of Science, Health, Engineering and Education, Murdoch University, Perth 6150, Australia
| | - George Moschonis
- Department of Dietetics, Nutrition and Sport, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3086, Australia; (K.S.); (J.H.); (E.S.G.); (W.M.); (J.C.W.)
- Correspondence: ; Tel.: +61-03-94793482
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Mazidi M, Ofori-Asenso R, George ES, Vatanparast H. Association Between Nutrient Patterns and Hypertension Among Adults in the United States: A Population-Based Survey. High Blood Press Cardiovasc Prev 2020; 27:133-138. [PMID: 32185752 DOI: 10.1007/s40292-020-00364-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/16/2020] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Hypertension (HTN) is a common medical condition associated with many adverse health outcomes. Diet plays a crucial role in the pathology, prevention, and management of HTN. AIM To identify nutrient patterns (NPs) and to investigate their association with the risk of HTN among adults in the United States (US). METHODS This cross-sectional study used data from the US community-based National Health and Nutrition Examination Survey (NHANES). Participants with data on dietary intake and blood pressure were analyzed. NPs were determined by principal components analysis (PCA). In all the analyses (analysis of covariance and multivariate logistic regression), we accounted for the survey design and sample weights. RESULTS Overall, 22,184 (4002 hypertensive and 18,182 normotensive) individuals were included. We identified three NPs which explained 50.8% of the variance of the dietary nutrient consumption. There was a graded decrease in the odds of association with HTN by quartiles of mono-unsaturated fatty acids (MUFA) dietary pattern where the 4th quartile was associated with a 28% (odds ratio [OR] 0.72, 95% confidence interval [CI] 0.63-0.82; p < 0.001) lower odds of HTN compared with the first quartile. The second NP "high in micronutrients and vitamins" presented a decreasing trend in the odds of association with HTN with the 4th quartile having a 20% [OR 0.80, 95% CI 0.63-0.97; p < 0.001] lower odds of HTN compared with the 1st quartile. CONCLUSION Our findings provide further evidence on the inverse association between a high intake of minerals, vitamins, and MUFA and the risk of HTN. Further observational studies and clinical trials are needed to better understand the influence of MUFA, vitamins, and mineral consumption on HTN.
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Affiliation(s)
- Mohsen Mazidi
- Department of Twin Research and Genetic Epidemiology, St Thomas' Hospital, King's College London, Strand, London, WC2R 2LS, UK.
| | - Richard Ofori-Asenso
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. .,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia.
| | - Elena S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Hassan Vatanparast
- College of Pharmacy and Nutrition, University of Saskatchewan, Health Sciences E-Wing, 104 Clinic Place, Saskatoon, SK, S7N 2Z4, Canada
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Wittholz K, Fetterplace K, Clode M, George ES, MacIsaac CM, Judson R, Presneill JJ, Deane AM. Measuring nutrition-related outcomes in a cohort of multi-trauma patients following intensive care unit discharge. J Hum Nutr Diet 2019; 33:414-422. [PMID: 31788891 DOI: 10.1111/jhn.12719] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Functional recovery is an important outcome for those who survive critical illness. The present study aimed to assess nutrition provision and nutrition-related outcomes in a multi-trauma cohort following intensive care unit (ICU) discharge. METHODS The present study investigated a prospective cohort of patients discharged from an ICU, who had been admitted because of major trauma and required mechanical ventilation for at least 48 h. Nutrition-related outcomes, including body weight, quadriceps muscle layer thickness (QMLT), handgrip strength and subjective global assessment, were recorded on ICU discharge, days 5-7 post-ICU discharge and then weekly until hospital discharge. Nutrition intake was recorded for 5 days post-ICU discharge. Unless otherwise stated, data are presented as the mean (SD). RESULTS Twenty-eight patients [75% males, 55 (22.5) years] were included. Intake met 64% (28%) of estimated energy and 72% (32%) of protein requirements over the 5 days post-ICU discharge, which was similar to over the ICU admission. From ICU admission to hospital discharge, the mean reduction in weight was 4.2 kg (95% confidence interval = 2.2-6.3, P < 0.001) and after ICU discharge, the mean reduction in weight and QMLT was 2.6 kg (95% confidence interval = 1.0-4.2, P = 0.004) and 0.23 cm (95% confidence interval = 0.06-0.4, P = 0.01), respectively. CONCLUSIONS Patients received less energy and protein than estimated requirements after ICU discharge. Weight loss and reduction in QMLT also occurred during this period.
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Affiliation(s)
- K Wittholz
- Department of Allied Health (Clinical Nutrition), The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - K Fetterplace
- Department of Allied Health (Clinical Nutrition), The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine and Radiology, Royal Melbourne Hospital, The University of Melbourne, Melbourne Medical School, Parkville, VIC, Australia
| | - M Clode
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, Australia
| | - E S George
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, Australia
| | - C M MacIsaac
- Department of Medicine and Radiology, Royal Melbourne Hospital, The University of Melbourne, Melbourne Medical School, Parkville, VIC, Australia.,Department of Intensive Care, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - R Judson
- Department of Trauma, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - J J Presneill
- Department of Medicine and Radiology, Royal Melbourne Hospital, The University of Melbourne, Melbourne Medical School, Parkville, VIC, Australia.,Department of Intensive Care, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - A M Deane
- Department of Medicine and Radiology, Royal Melbourne Hospital, The University of Melbourne, Melbourne Medical School, Parkville, VIC, Australia.,Department of Intensive Care, The Royal Melbourne Hospital, Melbourne, VIC, Australia
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Marx W, George ES, Mayr HL, Thomas CJ, Sarapis K, Moschonis G, Kennedy G, Pipingas A, Willcox JC, Prendergast LA, Itsiopoulos C. Effect of high polyphenol extra virgin olive oil on markers of cardiovascular disease risk in healthy Australian adults (OLIVAUS): A protocol for a double‐blind randomised, controlled, cross‐over study. Nutr Diet 2019; 77:523-528. [DOI: 10.1111/1747-0080.12531] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/12/2019] [Accepted: 02/24/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Wolfgang Marx
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
- Food & Mood Centre, IMPACT SRC, School of Medicine Deakin University Geelong Victoria Australia
| | - Elena S. George
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition Deakin University Geelong Victoria Australia
| | - Hannah L. Mayr
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
- Faculty of Health Sciences and Medicine Bond University Nutrition and Dietetics Research Group Gold Coast Queensland Australia
- Nutrition and Dietetics Department Princess Alexandra Hospital Brisbane Queensland Australia
| | - Colleen J. Thomas
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, College of Science, Health and Engineering La Trobe University Melbourne Victoria Australia
| | - Katerina Sarapis
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
| | - George Moschonis
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
| | - Greg Kennedy
- Centre for Human Psychopharmacology Swinburne University of Technology Melbourne Victoria Australia
| | - Andrew Pipingas
- Centre for Human Psychopharmacology Swinburne University of Technology Melbourne Victoria Australia
| | - Jane C. Willcox
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
| | - Luke A. Prendergast
- Department of Mathematics and Statistics, School of Engineering and Mathematical Sciences, College of Science, Health and Engineering La Trobe University Melbourne Victoria Australia
| | - Catherine Itsiopoulos
- Department of Dietetics, Nutrition and Sport School of Allied Health, Human Services and Sport, College of Science Melbourne Victoria Australia
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George ES, Marshall S, Mayr HL, Trakman GL, Tatucu-Babet OA, Lassemillante ACM, Bramley A, Reddy AJ, Forsyth A, Tierney AC, Thomas CJ, Itsiopoulos C, Marx W. The effect of high-polyphenol extra virgin olive oil on cardiovascular risk factors: A systematic review and meta-analysis. Crit Rev Food Sci Nutr 2018; 59:2772-2795. [DOI: 10.1080/10408398.2018.1470491] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Elena S. George
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
- School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Skye Marshall
- Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
| | - Hannah L Mayr
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Gina L. Trakman
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Oana A. Tatucu-Babet
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Annie-Claude M. Lassemillante
- Department of Health and Medical Science and Department of Health Professions, Faculty of Health, Arts and Design, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Andrea Bramley
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Anjana J. Reddy
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Adrienne Forsyth
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Audrey C. Tierney
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
- School of Allied Health, University of Limerick, Ireland
| | - Colleen J. Thomas
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Catherine Itsiopoulos
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
| | - Wolfgang Marx
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
- School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
- Deakin University, Food & Mood Centre, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Geelong, Australia
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George ES, Roberts SK, Nicoll AJ, Reddy A, Paris T, Itsiopoulos C, Tierney AC. Non-alcoholic fatty liver disease patients attending two metropolitan hospitals in Melbourne, Australia: high risk status and low prevalence. Intern Med J 2018; 48:1369-1376. [PMID: 29845719 DOI: 10.1111/imj.13973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/11/2018] [Accepted: 05/23/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease globally, with increased rates in high-risk populations, including type 2 diabetes and obesity. The condition increases the risk of end-stage liver disease, hepatocellular carcinoma and all-cause mortality. NAFLD is asymptomatic and often remains undiagnosed as routine screening in high-risk groups is not practised. AIMS The aim of this study was to determine the rates and characteristics of NAFLD patients attending liver clinics at two Melbourne metropolitan hospitals. METHODS Liver clinics were prospectively screened for 10 consecutive months and participants with a diagnosis of NAFLD were further evaluated using pathology and imaging results obtained from medical records. RESULTS Of the 2050 patients screened, 148 (7%) had NAFLD predominantly diagnosed using ultrasound (81%). NAFLD patients were obese (mean body mass index 30.7 ± 5.9 kg/m2 ), insulin resistant (median HOMA 4.2 (3.2) mmol/L) and had elevated liver enzymes (ALT median, males 47.0 (34.3), females 36.0 (28.0) U/L), and 18% of patients had liver stiffness measuring >12 kPa, suggesting a moderate probability of cirrhosis. Patients with liver stiffness measuring ≥9.6 kPa had significantly higher: glucose (median 5.5 (1.2) vs 6.2 (5.3) mmol/L, P = 0.007), aspartate aminotransferase levels (median 25.5 (26.0) vs 41.0 (62.0) u/L, P = 0.0005) and HOMA (3.1 (3.0) vs 5.4 (5.5) mmol/L, P = 0.040). CONCLUSIONS NAFLD constituted a minority of liver clinic patients, most of who were obese, insulin resistant and hypertensive, and many had an elevated liver stiffness measurement. NAFLD poses added adverse health outcomes to high-risk patients, and therefore, early detection is warranted.
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Affiliation(s)
- Elena S George
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Victoria, Australia.,Department of Nutrition, Alfred Health, Victoria, Australia.,School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Victoria, Australia
| | - Amanda J Nicoll
- Department of Gastroenterology, Eastern Health, Melbourne, Victoria, Australia
| | - Anjana Reddy
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Victoria, Australia
| | - Tonya Paris
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Victoria, Australia
| | - Catherine Itsiopoulos
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Victoria, Australia
| | - Audrey C Tierney
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Victoria, Australia.,Department of Nutrition, Alfred Health, Victoria, Australia.,Department of Clinical Therapies, University of Limerick, Limerick, Ireland
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Mayr HL, Thomas CJ, Tierney AC, Kucianski T, George ES, Ruiz-Canela M, Hebert JR, Shivappa N, Itsiopoulos C. Randomization to 6-month Mediterranean diet compared with a low-fat diet leads to improvement in Dietary Inflammatory Index scores in patients with coronary heart disease: the AUSMED Heart Trial. Nutr Res 2018; 55:94-107. [PMID: 29754829 DOI: 10.1016/j.nutres.2018.04.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/20/2018] [Accepted: 04/10/2018] [Indexed: 12/14/2022]
Abstract
A higher dietary inflammatory index (DII®) score is associated with inflammation and incidence of coronary heart disease (CHD). We hypothesized that a Mediterranean diet (MedDiet) intervention would reduce DII score. We assessed dietary data from a randomized controlled trial comparing 6-month MedDiet versus low-fat diet intervention, in patients with CHD. We aimed to determine the DII scores of the prescribed diets' model meal plans, followed by whether dietary intervention led to lower (i.e., more anti-inflammatory) DII scores and consequently lower high sensitivity C-reactive protein (hs-CRP) and interleukin-6 (hs-IL-6). DII scores were calculated from 7-day food diaries. The MedDiet meal plan had a markedly lower DII score than the low-fat diet meal plan (-4.55 vs. -0.33, respectively). In 56 participants who completed the trial (84% male, mean age 62 ± 9 years), the MedDiet group significantly reduced DII scores at 6 months (n = 27; -0.40 ± 3.14 to -1.74 ± 2.81, P = .008) and the low-fat diet group did not change (n = 29; -0.17 ± 2.27 to 0.05 ± 1.89, P = .65). There was a significant post-intervention adjusted difference in DII score between groups (compared to low-fat, MedDiet decreased by -1.69 DII points; P = .004). When compared to the low-fat diet, the MedDiet non-significantly reduced hs-IL-6 (-0.32 pg/mL, P = .29) and increased hs-CRP (+0.09 mg/L, P = .84). These findings demonstrated that MedDiet intervention significantly reduced DII scores compared to a low-fat diet. However, in this small cohort of patients with CHD this did not translate to a significant improvement in measured inflammatory markers. The effect of improvement in DII with MedDiet should be tested in larger intervention trials and observational cohorts.
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Affiliation(s)
- Hannah L Mayr
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia, 3086; Department of Nutrition and Dietetics, Northern Health, Melbourne, Victoria, Australia, 3076.
| | - Colleen J Thomas
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Melbourne, Victoria, Australia, 3086.
| | - Audrey C Tierney
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia, 3086; School of Allied Health, University of Limerick, Limerick, V94 T9PX, Ireland.
| | - Teagan Kucianski
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia, 3086.
| | - Elena S George
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia, 3086; School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia.
| | - Miguel Ruiz-Canela
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain.
| | - James R Hebert
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA; Connecting Health Innovations LLC, Columbia, SC 29201, USA.
| | - Nitin Shivappa
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA; Connecting Health Innovations LLC, Columbia, SC 29201, USA.
| | - Catherine Itsiopoulos
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia, 3086.
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George ES, Kucianski T, Mayr HL, Moschonis G, Tierney AC, Itsiopoulos C. A Mediterranean Diet Model in Australia: Strategies for Translating the Traditional Mediterranean Diet into a Multicultural Setting. Nutrients 2018; 10:E465. [PMID: 29642557 PMCID: PMC5946250 DOI: 10.3390/nu10040465] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/04/2018] [Accepted: 04/08/2018] [Indexed: 01/22/2023] Open
Abstract
Substantial evidence supports the effect of the Mediterranean Diet (MD) for managing chronic diseases, although trials have been primarily conducted in Mediterranean populations. The efficacy and feasibility of the Mediterranean dietary pattern for the management of chronic diseases has not been extensively evaluated in non-Mediterranean settings. This paper aims to describe the development of a MD model that complies with principles of the traditional MD applied in a multiethnic context. Optimal macronutrient and food-based composition was defined, and a two-week menu was devised incorporating traditional ingredients with evidence based on improvements in chronic disease management. Strategies were developed for the implementation of the diet model in a multiethnic population. Consistent with the principles of a traditional MD, the MD model was plant-based and high in dietary fat, predominantly monounsaturated fatty acids from extra virgin olive oil. Fruits, vegetables and wholegrains were a mainstay, and moderate amounts of nuts and seeds, fish, dairy and red wine were recommended. The diet encompassed key features of the MD including cuisine, biodiversity and sustainability. The MD model preserved traditional dietary components likely to elicit health benefits for individuals with chronic diseases, even with the adaptation to an Australian multiethnic population.
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Affiliation(s)
- Elena S George
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
- School of Exercise and Nutrition Sciences, Deakin University, Building J, 221 Burwood Hwy, Burwood, VIC 3125, Australia.
| | - Teagan Kucianski
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
| | - Hannah L Mayr
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
| | - George Moschonis
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
| | - Audrey C Tierney
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
- School of Allied Health, University of Limerick, Castletroy, Limerick V94 T9PX, Ireland.
| | - Catherine Itsiopoulos
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Health Sciences 3, Kingsbury Drive, Bundoora, VIC 3086, Australia.
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George ES, Forsyth A, Itsiopoulos C, Nicoll AJ, Ryan M, Sood S, Roberts S, Tierney AC. Practical Dietary Recommendations for the Prevention and Management of Nonalcoholic Fatty Liver Disease in Adults. Adv Nutr 2018; 9:30-40. [PMID: 29438460 PMCID: PMC6333937 DOI: 10.1093/advances/nmx007] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide. In the absence of effective pharmacotherapies, clinical guidelines focus primarily on weight loss to treat this condition. Established consensus, evidence-based, and clinical dietary recommendations for NAFLD are currently lacking. The aim of this paper is to provide evidence-based practical dietary recommendations for the prevention and management of NAFLD in adults. A literature review focusing on established principles for the development of clinical practice recommendations was employed using the following criteria: based on substantial evidence, ensures risk minimization, is flexible for an individual patient approach, and is open to further modification as evidence emerges. The Practice-based Evidence in Nutrition classification system was used to grade these principles. Five key dietary recommendations were developed: 1) follow traditional dietary patterns, such as the Mediterranean diet; 2) limit excess fructose consumption and avoid processed foods and beverages with added fructose; 3) PUFAs, especially long-chain omega-3 rich foods and MUFAs, should replace SFAs in the diet; 4) replace processed food, fast food, commercial bakery goods, and sweets with unprocessed foods high in fiber, including whole grains, vegetables, fruits, legumes, nuts, and seeds; and 5) avoid excess alcohol consumption. Improving diet quality may reduce the incidence and progression of NAFLD and associated risk factors. Many of the benefits are likely to result from the collective effect of dietary patterns. High-quality research-in particular, randomized clinical trials assessing dietary interventions that focus on liver-specific endpoints-are needed as a priority.
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Affiliation(s)
- Elena S George
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Australia; Departments of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
- Department of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
| | - Adrienne Forsyth
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Australia; Departments of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
| | - Catherine Itsiopoulos
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Australia; Departments of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
| | - Amanda J Nicoll
- Department of Gastroenterology, Eastern Health, Box Hill, Australia
| | - Marno Ryan
- Department of Gastroenterology, St Vincent's Hospital, Fitzroy, Australia
| | - Siddharth Sood
- Department of Gastroenterology, Melbourne Health, Parkville, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Prahran, Australia
| | - Audrey C Tierney
- Department of Rehabilitation, Nutrition and Sport, La Trobe University, Bundoora, Australia; Departments of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
- Department of Nutrition and Gastroenterology, Alfred Health, Prahran, Australia
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Paris T, George ES, Roberts SK, Tierney AC. The effects of diet and lifestyle interventions on insulin resistance in patients with nonalcoholic fatty liver disease: a systematic review. Eur J Gastroenterol Hepatol 2017; 29:867-878. [PMID: 28471823 DOI: 10.1097/meg.0000000000000890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) results from excessive fat accumulation in the liver in the absence of excessive alcohol consumption. Insulin resistance (IR) is proposed to be an underlying pathogenic factor in the development and progression of disease. There are currently no proven pharmacotherapies and weight loss is the only prescribed treatment despite a lack of evidence to support a specific diet or lifestyle therapy. The aim of this review is to evaluate the efficacy of dietary lifestyle interventions on IR measured by Homeostasis model assessment in patients with NAFLD. A systematic electronic search of Medline, Scopus, The Cochrane Library, CINAHL and PubMed databases (1999-2015) was performed by two independent reviewers. Randomized control trials evaluating the efficacy of diet and lifestyle interventions on IR in adults diagnosed with NAFLD were included. A total of 6441 articles were identified; eight randomized control trials fulfilled the inclusion criteria. Three studies involved dietary interventions and five incorporated diet and exercise. The majority of intervention groups resulted in significant reductions in IR, with no significant changes observed in the control groups. Lifestyle interventions compared with controls reduced IR measured by homeostasis model assessment. All diet and diet and lifestyle intervention trials were efficient in reducing IR in participants with NAFLD. A lack of literature and variation across interventions warrants the need for extensive research to establish firm dietary lifestyle recommendations.
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Affiliation(s)
- Tonya Paris
- aDepartment of Rehabilitation, Nutrition and Sports, La Trobe University bDepartment of Nutrition and Dietetics cDepartment of Gastroenterology, The Alfred Hospital, Melbourne, Victoria, Australia
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