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1.
Inorg Chem ; 2024 Aug 26.
Article de Anglais | MEDLINE | ID: mdl-39185932

RÉSUMÉ

To ascertain the bioinorganic chemistry of metals conjugated with quinones, the complexes [Ag(ATV)(PPh3)2] (1), [Au(ATV)(PPh3)]·2H2O (2), and [Cu(ATV)(PPh3)2] (3) were synthesized by the coordination of the antimalarial naphthoquinone atovaquone (ATV) to the starting materials [Ag(PPh3)2]NO3, [Au(PPh3)Cl], and [Cu(PPh3)2NO3], respectively. These complexes were characterized by analytical and spectroscopical techniques. X-ray diffraction of single crystals precisely confirmed the coordination mode of ATV to the metals, which was monodentate or bidentate, depending on the metal center. Both coordination modes showed high stability in the solid state and in solution. All three complexes showed negative log D values at pH 5, but at pH 7.4, while complex 2 continued to have a negative log D value, complexes 1 and 3 displayed positive values, indicating a more hydrophilic character. ATV and complexes 1-3 could bind to ferriprotoporphyrin IX (FePPIX); however, only complexes 1-3 could inhibit ß-hematin crystal formation. Phenotype-based activity revealed that all three metal complexes are able to inhibit the growth of P. falciparum with potency and selectivity comparable to those of ATV, while the starting materials lack this activity. The outcomes of this chemical design may provide significant insights into structure-activity relationships for the development of new antimalarial agents.

2.
Res Sq ; 2024 Mar 18.
Article de Anglais | MEDLINE | ID: mdl-38562683

RÉSUMÉ

Background: Cancer remains a leading cause of death worldwide and continues to disproportionately impact certain populations. Several frameworks have been developed that illustrate the multiple determinants of cancer. Expanding upon the work of others, we present an applied framework for cancer prevention and control designed to help clinicians, as well as public health practitioners and researchers, better address differences in cancer outcomes. Methods: The framework was developed by the Cancer Prevention and Control Research Network's Health Behaviors Workgroup. An initial framework draft was developed based on workgroup discussion, public health theory, and rapid literature review on the determinants of cancer. The framework was refined through interviews and focus groups with Federally Qualified Health Center providers (n=2) and cancer patients (n=2); participants were asked to provide feedback on the framework's causal pathways, completeness, and applicability to their work and personal life. Results: The framework provides an overview of the relationships between sociodemographic inequalities, social and structural determinants, and key risk factors associated with cancer diagnosis, survivorship, and cancer morbidity and mortality across the lifespan. The framework emphasizes how health-risk behaviors like cigarette smoking interact with psychological, psychosocial, biological, and psychosocial risk factors, as well as healthcare-related behavior and other chronic diseases. Importantly, the framework emphasizes addressing social and structural determinants that influence health behaviors to reduce the burden of cancer and improve health equity. Aligned with previous theory, our framework underscores the importance of addressing co-occurring risk factors and disease states, understanding the complex relationships between factors that influence cancer, and assessing how multiple forms of inequality or disadvantage intersect to increase cancer risk across the lifespan. Conclusions: This paper presents an applied framework for cancer prevention and control to address cancer differences. Because the framework highlights determinants and factors that influence cancer risk at multiple levels, it can be used to inform the development, implementation, and evaluation of interventions to address cancer morbidity and mortality.

3.
Mult Scler Relat Disord ; 84: 105468, 2024 Apr.
Article de Anglais | MEDLINE | ID: mdl-38359692

RÉSUMÉ

BACKGROUND: Multiple sclerosis is characterised by acute and chronic inflammation in the CNS. Diet may influence inflammation, and therefore MS outcomes. OBJECTIVE: To determine whether the Dietary Inflammatory Index (DII®)) is associated with depression, anxiety, and fatigue in a prospective cohort of people with MS. METHODS: People with a first clinical diagnosis of demyelination were followed over 10 years (n=223). DII and energy-adjusted DII (E-DIITM) scores were calculated from the dietary intake in the preceding 12 months measured by food frequency questionnaire. Depression and anxiety were assessed by the Hospital Anxiety and Depression Scale (HADS-A and HADS-D, respectively), and fatigue by the Fatigue Severity Scale. RESULTS: A higher E-DII score was associated with higher levels of depression and anxiety five years later (e.g., highest vs lowest E-DII quartile, HADS-D score: ß=2.23, 95%CI=0.98,3.48, p<0.001; HADS-A score: ß=1.90, 95%CI=0.59,3.21, p<0.001). A cumulative E-DII score was associated with depression (p<0.01) and anxiety (p=0.05) at the 10-year review. No associations were seen for fatigue. CONCLUSION: Our findings suggest that, in people with MS, a more pro-inflammatory diet may long-term adverse impact on depression and anxiety, but not fatigue.


Sujet(s)
Dépression , Sclérose en plaques , Humains , Dépression/épidémiologie , Dépression/étiologie , Sclérose en plaques/complications , Sclérose en plaques/épidémiologie , Études prospectives , Régime alimentaire , Anxiété/épidémiologie , Anxiété/étiologie , Inflammation/complications , Fatigue/complications
4.
Meas Phys Educ Exerc Sci ; 25(3): 212-226, 2021.
Article de Anglais | MEDLINE | ID: mdl-34326627

RÉSUMÉ

The purpose of this study was to compare activPAL algorithm-estimated values for time in bed (TIB), wake time (WT) and bedtime (BT) against self-report and an algorithm developed by van der Berg and colleagues. Secondary analyses of baseline data from the Community Activity for Prevention Study (CAPS) were used in which adults ≥ 18 years wore the activPAL for seven days. Mixed-effects models compared differences between TIB, WT, and BT for all three methods. Bland-Altman plots examined agreement and the two-one-sided test examined equivalence. activPAL was not equivalent to self-report or van der Berg in estimating TIB, but was equivalent to self-report for estimating BT, and was equivalent to van der Berg for estimating WT. The activPAL algorithm requires adjustments before researchers can use it to estimate TIB. However, researchers can use activPAL's option to manually enter self-reported BT and WT to estimate TIB and better understand 24-hour movement patterns.

5.
Osteoporos Int ; 32(11): 2193-2203, 2021 Nov.
Article de Anglais | MEDLINE | ID: mdl-34043032

RÉSUMÉ

A growing body of evidence suggests that diet quality may predict muscle health. This study found that a "Traditional" dietary pattern predicted greater muscle mass, and an anti-inflammatory diet predicted greater muscle mass and better muscle function over 15 years. These findings reinforce the importance of optimising dietary behaviours for healthy ageing. INTRODUCTION: Research investigating the roles of individual nutrients in muscle health fails to account for the synergistic relationships between foods and nutrients. This study aimed to investigate the predictive value of diet quality and dietary patterns for muscle mass and function in men over a 15-year period. METHODS: This longitudinal study was conducted in 522 men from the Geelong Osteoporosis Study with complete dietary and muscle mass or muscle function data at both baseline and 15-year follow-up assessments. Dietary exposures were extracted from food frequency questionnaires and included the Australian Recommended Food Score, the Dietary Inflammatory Index (DII®), and three a posteriori dietary patterns: Plant-focused, Western, and Traditional (Anglo-Australian). Outcome variables included dual-energy X-ray absorptiometry-derived skeletal muscle index (SMI) and muscle function measured with the timed up-and-go (TUG) test. RESULTS: An anti-inflammatory diet and higher scores on a Traditional dietary pattern both predicted greater SMI ((B: -0.04 (95%CI -0.08, -0.00) kg/m2) and (B: 0.12 (95%CI 0.04, 0.20) kg/m2), respectively), while a pro-inflammatory diet predicted slower TUG (B: 0.11 (95%CI 0.001, 0.21) sec) over the 15-year follow-up period. These associations remained significant following adjustment for confounding variables. There were no associations observed for other dietary exposures. CONCLUSION: A Traditional dietary pattern higher in vegetables, wholegrain cereals, and animal protein was associated with greater skeletal muscle mass, and an anti-inflammatory diet, also rich in vegetables, fruit, and wholegrain cereals, was associated with greater skeletal muscle mass and better muscle function over 15 years.


Sujet(s)
Régime alimentaire , Légumes , Animaux , Australie/épidémiologie , Humains , Études longitudinales , Muscles squelettiques
6.
PLoS One ; 16(2): e0244633, 2021.
Article de Anglais | MEDLINE | ID: mdl-33544707

RÉSUMÉ

PURPOSE: Studies using magnetic resonance imaging to assess lumbar multifidus cross-sectional area frequently utilize T1 or T2-weighted sequences, but seldom provide the rationale for their sequence choice. However, technical considerations between their acquisition protocols could impact on the ability to assess lumbar multifidus anatomy or its fat/muscle distinction. Our objectives were to examine the concurrent validity of lumbar multifidus morphology measures of T2 compared to T1-weighted sequences, and to assess the reliability of repeated lumbar multifidus measures. METHODS: The lumbar multifidus total cross-sectional area of 45 patients was measured bilaterally at L4 and L5, with histogram analysis determining the muscle/fat threshold values per muscle. Images were later re-randomized and re-assessed for intra-rater reliability. Matched images were visually rated for consistency of outlining between both image sequences. Bland-Altman bias, limits of agreement, and plots were calculated for differences in total cross-sectional area and percentage fat between and within sequences, and intra-rater reliability analysed. RESULTS: T1-weighted total cross-sectional area measures were systematically larger than T2 (0.2 cm2), with limits of agreement <±10% at both spinal levels. For percentage fat, no systematic bias occurred, but limits of agreement approached ±15%. Visually, muscle outlining was consistent between sequences, with substantial mismatches occurring in <5% of cases. Intra-rater reliability was excellent (ICC: 0.981-0.998); with bias and limits of agreement less than 1% and ±5%, respectively. CONCLUSION: Total cross-sectional area measures and outlining of muscle boundaries were consistent between sequences, and intra-rater reliability for total cross-sectional area and percentage fat was high indicating that either MRI sequence could be used interchangeably for this purpose. However, further studies comparing the accuracy of various methods for distinguishing fat from muscle are recommended.


Sujet(s)
Tissu adipeux/imagerie diagnostique , Lombalgie/imagerie diagnostique , Vertèbres lombales/imagerie diagnostique , Muscles paravertébraux/imagerie diagnostique , Humains , Imagerie par résonance magnétique
7.
Clin Nutr ESPEN ; 40: 269-276, 2020 12.
Article de Anglais | MEDLINE | ID: mdl-33183548

RÉSUMÉ

BACKGROUND AND AIMS: There is no clear evidence about the effects of gluten intake on obesity. It is known that gluten's effects on gut permeability are mediated by zonulin, a protein identified as pre-haptoglobin 2, a physiological regulator of the intestinal barrier. We investigated the obesogenic and inflammatory effects of gluten and its association with the haptoglobin genotype. METHODS: This was a single blinded, crossover study, including 40 overweight or obesity women free of celiac disease. Participants adopted a gluten-free diet (GFD) for 8 weeks and consumed a gluten-free muffin (GF-M) or a gluten-containing muffin (GLU-M, 24 g gluten) for 4 weeks, switching muffin type during the subsequent 4 weeks. During a follow-up period of 4 weeks we evaluated the usual diet (UD). Food diaries were collected to estimate the macronutrient intake and dietary inflammatory index (DII®). Bodyweight and composition, resting energy expenditure (REE), and cytokines were assessed. Haptoglobin alleles (Hp1 and Hp2) were genotyped to characterize zonulin expression. RESULTS: Energy and macronutrient intakes were similar during both periods, except for protein intake, which was higher during GLU-M. DII scores indicated a more inflammatory profile during the GF-M and GLU-M periods compared to UD. No differences were observed in body composition or REE between interventions when the Hp genotype was not considered. Nonetheless, those carrying the Hp2-2 genotype (overexpressing zonulin) presented lower REE and higher levels of IL6 and IL1beta only during gluten intake (GLU-M and UD) compared to age- and body mass index-matched Hp1-1 carrier. These results suggest an obesogenic and inflammatory action of gluten only in those overexpressing zonulin (Hp2-2). CONCLUSION: These results highlight the importance of zonulin as the mediator of gluten obesogenic and inflammatory effects. Our data suggest that in the presence of gluten, zonulin release is associated with a reduction of REE and an increase of inflammatory markers that are not seen in zonulin low producers.


Sujet(s)
Glutens , Haptoglobines , Études croisées , Régime sans gluten , Glutens/effets indésirables , Haptoglobines/génétique , Humains , Obésité/génétique , Isoformes de protéines
8.
J Hum Nutr Diet ; 33(1): 138-146, 2020 02.
Article de Anglais | MEDLINE | ID: mdl-31829488

RÉSUMÉ

BACKGROUND: Higher Dietary Inflammatory Index (DII®) scores are associated with increased morbidity and mortality. However, little is known about the effects of DII on mortality in Mediterranean countries. Therefore, in the present study, we aimed to investigate the potential association between DII scores and overall, cancer and cardiovascular disease (CVD) mortality in people living in a Mediterranean area. METHODS: DII scores were calculated using a validated food-frequency questionnaire. DII scores were then categorised into tertiles. Mortality was ascertained via death certificates. The association between DII scores with overall and cause-specific mortality was assessed via a multivariable Cox's regression analysis and reported as hazard ratios (HRs) with their 95% confidence intervals (CIs). RESULTS: The study included 1565 participants (mean age 65.5 years; females 44.7%). After a median follow-up of 12 years (2005-2017), 366 (23.4%) participants died. After adjusting for 17 potential confounders, people with higher DII scores had an increased risk of death compared to those in the lowest (most anti-inflammatory) tertile (HR = 1.38; 95% CI = 1.04-1.82 for the second tertile; HR = 1.38; 95% CI = 1.03-1.86 for the third tertile). Each 1 SD increase in DII score increased the risk of death by 13%. No association was found between DII scores and cancer or CVD death when considered separately. CONCLUSIONS: Higher DII scores were associated with a significantly higher mortality risk, whereas the association with cause-specific mortality was less clear. These findings highlight the potential importance of diet in modulating inflammation and preventing death.


Sujet(s)
Maladies cardiovasculaires/mortalité , Régime alimentaire sain/mortalité , Tumeurs/mortalité , Sujet âgé , Maladies cardiovasculaires/étiologie , Cause de décès , Enquêtes sur le régime alimentaire , Femelle , Humains , Inflammation , Études longitudinales , Mâle , Région méditerranéenne/épidémiologie , Adulte d'âge moyen , Tumeurs/étiologie , Modèles des risques proportionnels , Analyse de régression
9.
Cancer Causes Control ; 31(2): 203-207, 2020 Feb.
Article de Anglais | MEDLINE | ID: mdl-31823169

RÉSUMÉ

PURPOSE: Chronic inflammation has been implicated in endometrial carcinogenesis yet the impact of potentially modifiable exposures that might affect inflammation, like diet, has been understudied. This study examined the association between the dietary inflammatory index (DII®), a literature-derived tool to assess the inflammatory potential of diet, and risk of developing, and survival after a diagnosis of endometrial cancer (EC). METHODS: This study included data from 1,287 women with EC and 1,435 population controls who participated in the Australian National Endometrial Cancer Study. Energy-adjusted DII (E-DII) scores were calculated from pre-diagnostic dietary intake obtained using a semi-quantitative food frequency questionnaire. Logistic regression was used to assess the association between E-DII scores and risk of EC and proportional-hazards models were used for survival analyses. RESULTS: Higher E-DII scores, reflecting a more pro-inflammatory diet, were not associated with risk of EC [adjusted odds ratio (OR) 0.98, 95% CI 0.77-1.24, p-trend = 0.7]. However, in stratified analyses, higher E-DII scores were associated with increased risk of EC among very obese (BMI 35 + kg/m2) women (OR 1.60, 95% CI 0.80-3.21, p-trend = 0.049, p-interaction = 0.045). After a median follow-up of 7.2 years there were 160 deaths, of which 110 (69%) were from EC. We found no association between E-DII score and survival. CONCLUSION: Greater inflammatory potential of pre-diagnostic diet was not associated with EC risk or survival. Secondary stratified analysis suggested greater inflammatory potential may be associated with EC risk in very obese women.


Sujet(s)
Régime alimentaire , Tumeurs de l'endomètre/épidémiologie , Inflammation/épidémiologie , Obésité/épidémiologie , Adolescent , Adulte , Sujet âgé , Australie/épidémiologie , Femelle , Humains , Modèles logistiques , Adulte d'âge moyen , Odds ratio , Facteurs de risque , Jeune adulte
10.
Contemp Clin Trials Commun ; 16: 100482, 2019 Dec.
Article de Anglais | MEDLINE | ID: mdl-31799473

RÉSUMÉ

OBJECTIVE: To describe and evaluate recruitment approaches for a randomized controlled trial (RCT) of community gardening in Denver, Colorado. (ClinicalTrials.gov: NCT03089177). METHODS: We used community and staff feedback to adapt our recruitment approach from year 1 to year 2 of a multi-year RCT to address health behaviors related to cancer prevention. In year 2, we added a full-time recruitment coordinator, designed and implemented a tracking spreadsheet, and engaged advisory committee members, local garden leaders, and health partners in planning and outreach. Screening and consent rates, staff time and costs for years 1 and 2 are compared. RESULTS: In year 1, recruitment methods yielded 136 initial contacts, 106 screenings and 64 consented participants. In year 2, enhanced staffing and outreach yielded 257 initial contacts, 193 screenings, and 123 consented participants. Personal referrals, health fairs, NextDoor, and fliers yielded the highest percentage of consented participants. School and community meetings yielded the lowest yield for potential participants. Spanish-speaking participants were mostly recruited by direct methods. Compared to year 1 recruitment, which required 707 h of staff time and cost $14,446, year 2 recruitment required 1224 h of staff time and cost $22,992. Average cost for retained participants was $226 (year 1) and $186 (year 2). DISCUSSION: Those planning pragmatic clinical trials with recruitment in multi-ethnic communities can use the results from this study to understand the efficacy of techniques, and to budget costs for recruitment. While our culturally-tailored recruitment methods cost more, they provided more effective and efficient ways to reach recruitment goals.

11.
J Nutr Health Aging ; 23(7): 628-636, 2019.
Article de Anglais | MEDLINE | ID: mdl-31367727

RÉSUMÉ

OBJECTIVES: Chronic low-grade inflammation is a key underlying mechanism in several age-related chronic conditions and previous studies have shown that diet can modulate the inflammatory process. We investigated the ability of the Dietary Inflammatory Index (DII®), a summary measure of dietary inflammatory potential, to predict concentrations of plasma inflammatory markers in a sample of older people. DESIGN: Cross-sectional and 3-year follow-up analysis of Lothian Birth Cohort 1936 (LBC1936) study data. SETTING: Baseline data collection occurred between 2004 and 2007 in Edinburgh, Scotland. PARTICIPANTS: Men and women (n 928, age ~70 at baseline) living in Edinburgh and surrounding regions who are surviving participants of the Scottish Mental Survey of 1947. MEASUREMENTS: Energy-adjusted DII (E-DII) scores at age 70 (derived from a food-frequency questionnaire), plasma concentrations of inflammatory biomarkers at age 70 (C-reactive protein (CRP), fibrinogen) and age 73 (CRP, fibrinogen, hs-CRP, Interleukin-6 (IL-6)). Analyses were performed using multivariable logistic regression adjusting for age, sex, smoking, body mass index, physical activity, and hypercholesterolaemia. RESULTS: Higher E-DII scores (pro-inflammatory diet) were associated with increased odds of elevated CRP (>3mg/L) at age 70 (OR 1.12; 95% CI: 1.02, 1.24, P = 0.02), and elevated IL-6 (>1.6pg/ml) at age 73 (OR 1.11; 95% CI: 1.00, 1.23, P = 0.04), but not with fibrinogen. CONCLUSION: These results are consistent with the ability of the DII to predict inflammatory biomarker concentrations and suggest that diet plays a role in the regulation of inflammation, even after controlling for potential confounders. This validation study provides support for using the DII in research among older populations.


Sujet(s)
Protéine C-réactive/analyse , Maladie chronique , Régime alimentaire , Fibrinogène/analyse , Inflammation/sang , Interleukine-6/sang , Sujet âgé , Sujet âgé de 80 ans ou plus , Marqueurs biologiques/sang , Indice de masse corporelle , Études de cohortes , Études transversales , Exercice physique , Femelle , Humains , Modèles logistiques , Mâle , Écosse , Enquêtes et questionnaires
12.
Osteoporos Int ; 30(8): 1645-1654, 2019 Aug.
Article de Anglais | MEDLINE | ID: mdl-31143990

RÉSUMÉ

Diet is thought to modulate inflammation. This study shows no relationships between the dietary inflammatory index (DII) and biomarkers of inflammation or bone after adjusting for covariates. Monocyte chemoattractant protein-1 was inversely associated with peripheral tibia cortical thickness and prospective childhood studies should be conducted to better understand this relationship and to determine if there are long-term consequences in adulthood. INTRODUCTION: Examine the relationships between the DII-scores and bone and biomarkers of inflammation in 290 adolescents, ages 9-13 years. METHODS: DII-scores were calculated from 3-day diet records and categorized into tertiles, low (< - 1.34), medium (- 1.34 to 1.41), and high (> 1.41) inflammation. Radius and tibia bone were assessed via peripheral quantitative computed tomography (Stratec XCT 2000) at the 66% site relative to the distal growth plate. Fasting serum was measured for tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), vascular endothelial growth factor (VEGF), and monocyte chemoattractant protein-1 (MCP-1). The relationships between DII-scores and bone and biomarkers of inflammation were assessed using bivariate and partial correlations adjusting for sexual maturation, sex, race, muscle cross-sectional area, and height. ANOVA/ANCOVA models were used to compare DII-tertiles with dependent variables. RESULTS: DII-scores were negatively associated with tibia trabecular area (TtAr; r = - .141, P = .019), periosteal perimeter (PsPM; r = - .145, P = .016), endosteal perimeter (r = - .145, P = .016), strength strain index (SSI; r = - .129, P = .032), and radius TtAr (r = - .140, P = .020), PsPM (r = -.138, P = .027) and SSI (r = -.131, P = .036) but nullified when adjusting for covariates. Tibia PsPM was higher in the low DII group compared to the medium (P = .050) and high (P = .046) groups but nullified after controlling for covariates. DII-scores were not associated with TNF-α, VEGF, or IL-6, but were associated with MCP-1 only in the unadjusted model (r = .125, P = .042). In the adjusted model, MCP-1 was inversely associated with tibia cortical thickness (r = -.150 P = .030). CONCLUSION: The DII-scores were not related to biomarkers of inflammation or bone; however, the biomarker of inflammation, MCP-1 was negatively associated with tibia CtTh. Future prospective pediatric studies should be conducted to better understand this relationship and determine if there are long-term implications in adulthood.


Sujet(s)
Phénomènes physiologiques nutritionnels chez l'adolescent/physiologie , Os cortical/physiopathologie , Régime alimentaire , Inflammation/physiopathologie , Adolescent , Anthropométrie/méthodes , Marqueurs biologiques/sang , Composition corporelle/physiologie , Densité osseuse/physiologie , Chimiokine CCL2/sang , Enfant , Os cortical/anatomopathologie , Études transversales , Femelle , Humains , Inflammation/sang , Médiateurs de l'inflammation/analyse , Mâle , Évaluation de l'état nutritionnel , Tibia/anatomopathologie , Tibia/physiopathologie , Tomodensitométrie/méthodes
13.
J Nutr Health Aging ; 23(4): 323-329, 2019.
Article de Anglais | MEDLINE | ID: mdl-30932130

RÉSUMÉ

OBJECTIVE: This study aimed to investigate the association between dietary inflammation, pre-frailty and frailty among older US adults. Additionally, effect modification of gender on the association between dietary inflammation and frailty was assessed. DESIGN: Study data came from the National Health and Nutrition Examination Survey (2007-2014) - a nationally representative, cross-sectional study of adults. PARTICIPANTS: The analytic sample included adults ≥60 years (n=7,182). MEASUREMENTS: Dietary Inflammatory Index (DII®) scores were calculated from 24-hour dietary recalls; DII was categorized into quintiles from Quintile 1 (Q1) (least inflammatory) to Q5 (most inflammatory). Frailty was assessed by four criteria: exhaustion, weakness, low body mass, and low physical activity. Individuals were then categorized into robust (0 criteria), pre-frail (1-2 criteria), or frail (3-4 criteria). Multinomial logistic regression was used to examine the odds of frailty categories (pre-frail vs. robust; frail vs. robust). RESULTS: After adjusting for potential confounders, individuals in DII quintile 5 (vs Q1) were more likely to be pre-frail (OR = 1.71; 95% CI: 1.36-2.15) and frail (OR = 1.70; 95% CI: 1.02-2.85). Individuals in Q4 had greater odds of frailty only (OR = 1.82; 95% CI: 1.13, 2.93). No evidence of effect modification by gender on the association of DII and frailty was found. CONCLUSION: This study expands upon previous evidence of a relationship between dietary inflammation and frailty. When designing nutrition-based frailty interventions, inflammatory properties of diets should be considered.


Sujet(s)
Régime alimentaire , Personne âgée fragile/statistiques et données numériques , Fragilité/physiopathologie , État de santé , Enquêtes nutritionnelles/statistiques et données numériques , Sujet âgé , Études transversales , Femelle , Humains , Inflammation/anatomopathologie , Modèles logistiques , Mâle , Adulte d'âge moyen
14.
Clin Nutr ; 38(5): 2259-2268, 2019 10.
Article de Anglais | MEDLINE | ID: mdl-30344023

RÉSUMÉ

BACKGROUND & AIMS: Breast cancer (BC) is the most commonly diagnosed cancer, and diet is suspected to play a role in its development. Dietary factors may mediate this process through modulation of inflammation, though findings from previous studies have not been consistent. We aimed to longitudinally assess the association between the dietary inflammatory index (DII®), a frequently used method to assess the inflammatory potential of the diet, and incident BC. METHODS: We included 10,713 middle-aged, Spanish female university graduates from the SUN cohort. DII® scores were derived from a validated 136-item food-frequency questionnaire, and it was based on scientific evidence on the relationship between diet and inflammatory biomarkers. Diagnosis of BC was reported by the participant or, if deceased, by the next of kin or identified from death certificates. Self-reports of BC were confirmed by revision of medical reports by an experienced oncologist. Cox proportional hazard models were used to estimate multivariable-adjusted hazard ratios (HR) and 95% confidence intervals (CI) for the association between quartiles of DII® and incident BC. RESULTS: After 10.3 years of median follow-up, we identified 100 confirmed and 168 probable incident BC cases. The multivariable-adjusted HR for participants in the 4th quartile to the 1st quartile was 1.44 (95% CI 0.76-2.72; p-trend: 0.339) when confirmed cases were analyzed, and 1.20 (95% CI 0.72-1.99; p-trend: 0.757) for the probable cases. We neither observed statistically significant differences in regard to menopausal status. CONCLUSIONS: The apparent increase in risk between DII® scores and BC in our cohort was not statistically significant, which could be partly explained by the small number of observed cases.


Sujet(s)
Tumeurs du sein/épidémiologie , Régime alimentaire/statistiques et données numériques , Inflammation/métabolisme , Adulte , Cytokines/sang , Régime alimentaire/effets indésirables , Femelle , Humains , Incidence , Adulte d'âge moyen , Modèles des risques proportionnels , Espagne/épidémiologie
15.
Eur J Nutr ; 58(4): 1757, 2019 06.
Article de Anglais | MEDLINE | ID: mdl-30267201

RÉSUMÉ

In the original publication of this article on page 6, paragraph "Discussion", line 4, 'In a U.S. population-based case-control study (n = 493 cases) Peres et al., reported a non-significant association between DII score and risk of developing ovarian cancer of similar magnitude (OR DII scoreQ4 vs. Q1 1.35, 95% CI 0.93-1.97) [20]'. It should read as 'In a U.S. population-based case-control study (n = 493 cases) Peres et al., reported a significant association between DII score and risk of developing ovarian cancer (OR DII scoreQ4 vs. Q1 1.72, 95% CI 1.18-2.51) [20]'.

16.
Eur J Nutr ; 58(4): 1747-1756, 2019 Jun.
Article de Anglais | MEDLINE | ID: mdl-30027314

RÉSUMÉ

PURPOSE: Inflammation has been implicated in ovarian carcinogenesis. This study evaluated two dietary indices: the Dietary Inflammatory Index (DII®) and the Empirical Dietary Inflammatory Pattern (EDIP), in relation to risk of developing, and survival following, a diagnosis of ovarian cancer. METHODS: Data came from the Australian Ovarian Cancer Study (1375 cases, 1415 population controls). DII and EDIP scores were computed from dietary information obtained using a semiquantitative food-frequency questionnaire. Logistic regression was used to assess the association between DII and EDIP scores and risk of ovarian cancer and proportional hazards models were used for survival analysis. RESULTS: A high DII score, reflecting a more pro-inflammatory diet, was associated with a modest increased risk of ovarian cancer [odds ratio (OR) DII scoreQ4 vs.Q1 = 1.31, 95% CI 1.06-1.63, ptrend = 0.014]. Likewise a high EDIP score was associated with an increase in risk of ovarian cancer [OR EDIP scoreQ4 vs.Q1 = 1.39, 95% confidence interval (CI) 1.12-1.73, ptrend = 0.002]. We found no association between DII or EDIP score and overall or ovarian cancer-specific survival. CONCLUSION: In conclusion, our results suggest that a pro-inflammatory diet modestly increases the risk of developing ovarian cancer.


Sujet(s)
Régime alimentaire/effets indésirables , Inflammation/épidémiologie , Tumeurs de l'ovaire/épidémiologie , Adolescent , Adulte , Sujet âgé , Australie/épidémiologie , Comorbidité , Femelle , Humains , Adulte d'âge moyen , Facteurs de risque , Analyse de survie , Jeune adulte
17.
Phys Ther Sport ; 32: 212-220, 2018 Jul.
Article de Anglais | MEDLINE | ID: mdl-29807278

RÉSUMÉ

OBJECTIVES: To investigate the intra- and interrater reliability and agreement for field-based assessment of scapular control, shoulder range of motion (ROM), and shoulder isometric strength in elite youth athletes. DESIGN: Test-retest reliability and agreement study. SETTING: Eight blinded raters (two for each assessment) assessed players on field during two testing sessions separated by one week. PARTICIPANTS: 162 elite youth handball players with or without a history of previous shoulder pain within the preceding six months. MAIN OUTCOME MEASURES: Kappa (κ) and prevalence-adjusted bias-adjusted kappa (PABAK) coefficients for scapular control reliability, and 95% limits of agreement (LOA) for ROM and strength agreement. RESULTS: Scapular control demonstrated substantial to almost perfect reliability (κ 0.67 to 0.84, PABAK from 0.68 to 0.88). Mean strength values ranged from 0.9 N/kg to 1.6 N/kg, and LOAs ranged from -0.7 N/kg to 0.8 N/kg. Rotational strength revealed additionally systematic bias between and within rater. No or acceptable systematic bias were evident for ROM and abduction strength measures. Mean values and LOAs for ROM ranged between 39.9° to 52.3°, and from -12.6° to 9.9°, respectively. CONCLUSIONS: Scapular control and ROM can be assessed on the field with acceptable reliability. The threshold for reliable measurements of isometric strength using handheld-dynamometers is high.


Sujet(s)
Force musculaire , Amplitude articulaire , Adolescent , Athlètes , Femelle , Humains , Mâle , Dynamomètre pour la mesure de la force musculaire , Biais de l'observateur , Reproductibilité des résultats , Scapula/physiologie , Lésions de l'épaule
18.
Nano Lett ; 18(4): 2254-2262, 2018 04 11.
Article de Anglais | MEDLINE | ID: mdl-29505261

RÉSUMÉ

Atomic force microscopy (AFM) is a powerful tool to detect in vitro antibody-antigen interactions. To date, however, AFM-measured antibody-antigen interactions have yet to be exploited to predict in vivo tumor specificity of antibody-directed nanomedicines. In this study, we have utilized AFM to directly measure the biomechanical interaction between live triple negative breast cancer (TNBC) cells and an antibody against ICAM1, a recently identified TNBC target. For the first time, we provide proof-of-principle evidence that in vitro TNBC cell-ICAM1 antibody binding force measured by AFM on live cells more precisely correlates with in vivo tumor accumulation and therapeutic efficacy of ICAM1 antibody-directed liposomes than ICAM1 gene and surface protein overexpression levels. These studies demonstrate that live cell-antibody binding force measurements may be used as a novel in vitro metric for predicting the in vivo tumor recognition of antibody-directed nanomedicines.


Sujet(s)
Anticorps immobilisés/immunologie , Molécule-1 d'adhérence intercellulaire/immunologie , Microscopie à force atomique/méthodes , Tumeurs du sein triple-négatives/immunologie , Lignée cellulaire tumorale , Conception d'appareillage , Femelle , Humains , Liposomes/immunologie , Microscopie à force atomique/instrumentation , Nanomédecine/méthodes , Tumeurs du sein triple-négatives/anatomopathologie
19.
Contemp Clin Trials ; 68: 72-78, 2018 05.
Article de Anglais | MEDLINE | ID: mdl-29563043

RÉSUMÉ

BACKGROUND: Engaging in health-promoting behaviors (e.g., healthy fruit- and vegetable-rich diet, physical activity) and living in supportive social and built environments are consistently and significantly associated with reductions in cancer, heart disease, diabetes, and other chronic diseases. Interventions to change diet and physical activity behaviors should aim to educate individuals, change the environments in which people live, work and recreate, improve access, availability, and affordability of healthy foods, and create safe places the facilitate active lifestyles. This trial will assess whether community gardening increases fruit and vegetable consumption and physical activity, improves social support and mental health, and reduces age-associated weight gain and sedentary time among a multi-ethnic, mixed-income population. METHODS/DESIGN: A randomized controlled trial of community gardening began in Denver, Colorado in January 2017. Over 3 years, we will recruit 312 consenting participants on Denver Urban Gardens' waitlists and randomize them to garden or remain on the waitlist. At baseline (pre-gardening), harvest time, and post-intervention, study participants will complete three 24-hour dietary recalls, a 7-day activity monitoring period using accelerometry, a health interview and physical anthropometry. DISCUSSION: This project addresses health-promoting behaviors among a multi-ethnic, mixed-income adult population in a large metropolitan area. If successful, this trial will provide evidence that community gardening supports and sustains healthy and active lifestyles, which can reduce risk of cancer and other chronic diseases. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03089177: Registered on 03/17/17.


Sujet(s)
Participation communautaire , Diétothérapie , Jardinage/méthodes , Comportement en matière de santé , Promotion de la santé/méthodes , Services de médecine préventive , Adulte , Participation communautaire/méthodes , Participation communautaire/psychologie , Diétothérapie/méthodes , Diétothérapie/psychologie , Exercice physique , Femelle , Fruit , Mode de vie sain , Humains , Mâle , Santé mentale , Services de médecine préventive/méthodes , Services de médecine préventive/organisation et administration , Soutien social , Légumes
20.
Nutr Metab Cardiovasc Dis ; 28(5): 461-469, 2018 05.
Article de Anglais | MEDLINE | ID: mdl-29576250

RÉSUMÉ

BACKGROUND AND AIMS: Dietary patterns are associated with risk of cardiovascular disease (CVD). We aimed to examine associations of the Dietary Inflammatory Index (DII) and the Mediterranean Diet Score (MDS) with total, cardiovascular disease (CVD) and coronary heart disease (CHD) mortality in the Melbourne Collaborative Cohort Study; and compare the strengths of the associations. METHODS AND RESULTS: In our prospective cohort study of 41,513 men and women aged 40-69 years, a food frequency questionnaire was completed at baseline and mortality data were obtained via linkage with local and national registries over an average of 19 years follow up. At baseline, questionnaires were completed and physical measures and blood samples taken. Cox proportional hazards models, adjusting for age, alcohol consumption, sex, region of origin, personal history of CVD or diabetes and family history of CVD, were used to assess associations between dietary scores and mortality. More Mediterranean or less inflammatory diets were associated with lower total, CVD and CHD mortality. The hazard ratio for total mortality comparing the highest and lowest quintiles was 1.16 (95%CI: 1.08-1.24) for DII; and 0.86 (95%CI: 0.80-0.93) comparing the highest and lowest three categories of MDS. Using the Bayesian information criterion, there was no evidence that the DII score was more strongly associated with total and CVD mortality than was the MDS. CONCLUSIONS: The MDI and the DII show similar associations with total and cardiovascular mortality, consistent with the consensus that plant-based diets are beneficial for health.


Sujet(s)
Maladies cardiovasculaires/mortalité , Maladies cardiovasculaires/prévention et contrôle , Régime alimentaire sain , Régime méditerranéen , Régime alimentaire/effets indésirables , Comportement alimentaire , Inflammation/mortalité , Inflammation/prévention et contrôle , Adulte , Sujet âgé , Maladies cardiovasculaires/diagnostic , Enquêtes sur le régime alimentaire , Femelle , Humains , Inflammation/diagnostic , Mâle , Adulte d'âge moyen , Valeur nutritive , Études prospectives , Facteurs de protection , Appréciation des risques , Facteurs de risque , Facteurs temps , Victoria/épidémiologie
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