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1.
J Nutr Biochem ; 133: 109701, 2024 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-39019119

RESUMEN

This study aimed to investigate the effects of blackcurrant (BC) on gut microbiota abundance and composition, inflammatory and immune responses, and their relationship with bone mass changes. The effects of BC on bone mineral density (BMD), gut microbiota, and blood inflammatory and immune biomarkers were evaluated using DXA, stool and fasting blood collected from a pilot three-arm, randomized, double-blind, placebo-controlled clinical trial. Fifty-one peri- and early postmenopausal women aged 45-60 years were randomly assigned into one of three treatment groups for 6 months: control, low BC (392 mg/day) and high BC (784 mg/day); and 40 women completed the trial. BC supplementation for 6 months effectively mitigated the loss of whole-body BMD (P<.05). Six-month changes (%) in peripheral IL-1ß (P=.056) and RANKL (P=.052) for the high BC group were marginally significantly lower than the control group. Six-month changes in whole-body BMD were inversely correlated with changes in RANKL (P<.01). In proteome analysis, four plasma proteins showed increased expression in the high BC group: IGFBP4, tetranectin, fetuin-B, and vitamin K-dependent protein S. BC dose-dependently increased the relative abundance of Ruminococcus 2 (P<.05), one of six bacteria correlated with BMD changes in the high BC group (P<.05), suggesting it might be the key bacteria that drove bone protective effects. Daily BC consumption for 6 months mitigated bone loss in this population potentially through modulating the gut microbiota composition and suppressing osteoclastogenic cytokines. Larger-scale clinical trials on the potential benefits of BC and connection of Ruminococcus 2 with BMD maintenance in postmenopausal women are warranted. Trial Registration: NCT04431960, https://classic.clinicaltrials.gov/ct2/show/NCT04431960.


Asunto(s)
Densidad Ósea , Microbioma Gastrointestinal , Osteoporosis Posmenopáusica , Ribes , Humanos , Femenino , Persona de Mediana Edad , Osteoporosis Posmenopáusica/prevención & control , Densidad Ósea/efectos de los fármacos , Proyectos Piloto , Método Doble Ciego , Ribes/química , Suplementos Dietéticos , Huesos/metabolismo , Ligando RANK/metabolismo , Biomarcadores/sangre , Interleucina-1beta/sangre , Interleucina-1beta/metabolismo
2.
Nutrients ; 16(13)2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38999790

RESUMEN

Nutrition education and food resource management (FRM) can assist food-insecure individuals in acquiring healthy and affordable food. We aimed to assess the relationships between FRM skills and healthy eating focus with diet quality and health-related behaviors in low-income adults during the COVID-19 pandemic. This cross-sectional study was conducted using an online survey of 276 low-income adults living in a low-food-access community in Northeast Connecticut. Through analysis of covariance, adults who usually or always had a meal plan, considered reading nutrition labels important, made a grocery list, were concerned about their food healthiness, and rated their diet quality as very good/excellent reported higher diet quality (frequency-based and liking-based scores) (p < 0.05 for all). Individuals who considered reading food labels very important and reported having a good diet reported less frequent pandemic-related unhealthy behaviors (consumption of candy and snack chips, soda or sugary drinks, weight gain, smoking) (p < 0.001). Furthermore, higher-frequency-based diet quality was associated with lower risk of overweight or obesity (OR: 0.37; 95% CI: 0.18, 0.76; p-trend < 0.01). Thus, FRM skills and healthy eating focus were associated with higher diet quality and healthier self-reported changes in diet, weight, and smoking behaviors during the pandemic.


Asunto(s)
COVID-19 , Dieta Saludable , Conductas Relacionadas con la Salud , Pobreza , Humanos , Masculino , Femenino , Adulto , Dieta Saludable/estadística & datos numéricos , Estudios Transversales , COVID-19/epidemiología , COVID-19/prevención & control , Persona de Mediana Edad , Connecticut/epidemiología , SARS-CoV-2 , Conducta Alimentaria , Adulto Joven , Etiquetado de Alimentos , Dieta
3.
Br J Nutr ; : 1-11, 2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38682279

RESUMEN

Diet quality has been associated with mental health, and recently, there has been growing interest in the association between the sustainability of diets and human health. The objective of this cross-sectional study was to explore the relationship between a newly developed dietary index for health and sustainability and psychological disorders among Iranian women. Participants in this cross-sectional study included 479 women living in Tehran with no history of chronic disease. A validated 168-item FFQ was used to assess dietary intake. The World Index for Sustainability and Health was calculated, consisting of four sub-scores: less healthy, healthy, low environmental impact and high environmental impact. Participants' psychological status was assessed using the Depression Anxiety Stress Scale-21. Logistic regression models were used to examine the association between the World Index for Sustainability and Health and psychological disorders. Participant ages ranged from 20 to 50 years, with a mean age of 31·86 (sd 7·68) years. After adjusting for potential confounders (age, energy, BMI, marital status, education, family history of chronic disease, body satisfaction, socio-economic status, physical activity, smoking), women in the highest tertile of the healthy sub-score had significantly lower odds of experiencing depression (OR 0·40; 95 % CI 0·24, 0·67), anxiety (OR 0·45; 95 % CI 0·23, 0·87) and psychological distress (OR 0·46; 95 % CI 0·28, 0·77) compared with the reference group. Similarly, the less healthy sub-score was significantly associated with depression (OR 0·51; 95 % CI 0·32, 0·89), anxiety (OR 0·44; 95 % CI 0·25, 0·78) and psychological distress (OR 0·57; 95 % CI 0·36, 0·90). An inverse association was observed between the low environmental impact sub-score and depression (OR 0·32; 95 % CI 0·19, 0·54), anxiety (OR 0·38; 95 % CI 0·18, 0·76) and psychological distress (OR 0·30; 95 % CI 0·17, 0·51). However, no further significant associations were found with the high environmental impact sub-score, except with depression (OR 0·57; 95 % CI 0·33, 0·96). The healthy and low environmental impact sub-scores of the World Index for Sustainability and Health were found to be inversely associated with depression, anxiety and psychological distress. However, due to the cross-sectional study design, causality cannot be inferred. Further prospective studies are required to validate and expand upon these findings and explore potential mechanisms and alternative explanations, such as reverse causation. While this study suggests that choosing a diet that is both healthy for individuals and sustainable for the environment may be associated with a lower risk of mental health issues among women, more research is needed.

4.
Front Nutr ; 9: 878979, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35711545

RESUMEN

Objective: This systematic review and meta-analysis of prospective cohort studies examined the associations between egg and dietary cholesterol intake and the risk of mortality from all causes, including cardiovascular disease (CVD) and cancer. Methods: We searched PubMed, Scopus, ISI Web of Knowledge, and Google Scholar until April 2021, as well as references to the relevant articles retrieved. Random-effects models were used to calculate summary relative risk (RR) and 95% confidence intervals (CIs) for the highest vs. lowest categories of egg and dietary cholesterol intake. Also, linear and non-linear dose-response analyses were conducted to examine the dose-response relationships. Results: We included 55 studies, comprising data from 2,772,486 individuals with 228,425, 71,745, and 67,211 cases of all-cause, CVD, and cancer mortality, respectively. Intake of each additional egg per day was associated with a 7% higher risk of all-cause (1.07, 95% CI: 1.02-1.12, I2 = 84.8%) and a 13% higher risk of cancer mortality (1.13, 95% CI: 1.06-1.20, I2 = 54.2%), but was not associated with CVD mortality (1.00, 95% CI: 0.92-1.09, I2 = 81.5%). Non-linear analyses showed increased risks for egg consumption of more than 1.5 and 0.5 eggs/day, respectively. Each 100 mg/day increment in dietary cholesterol intake was associated with a 6% higher risk of all-cause mortality (1.06, 95% CI: 1.03-1.08, I2 = 34.5%) and a 6% higher risk of cancer mortality (1.06, 95% CI: 1.05-1.07, I2 = 0%), but was not associated with CVD mortality (1.04, 95% CI: 0.99-1.10, I2 = 85.9%). Non-linear analyses demonstrated elevated risks of CVD and cancer mortality for intakes more than 450 and 250 mg/day, respectively. Conclusions and Relevance: High-dietary intake of eggs and cholesterol was associated with all-cause and cancer mortality. Little evidence for elevated risks was seen for intakes below 0.5 egg/day or 250 mg/day of dietary cholesterol. Our findings should be considered with caution because of small risk estimates and moderate between-study heterogeneity. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=252564, PROSPERO, identifier: CRD42021252564.

5.
Crit Rev Food Sci Nutr ; 62(1): 261-271, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-32885996

RESUMEN

Previous studies reported inconsistent findings regarding the consumption of a vegetarian diet with mental health outcomes, specifically depression, anxiety and stress. A systematic review was conducted to summarize the current state of literature regarding our understanding of the association between a vegetarian diet and depression, anxiety and stress. A literature search was completed using Scopus, PubMed, and the Web of Science for relevant articles published prior to July 2020. Prospective cohort and cross-sectional studies conducted on adults reporting risk estimates for the consumption of a vegetarian diet, depression, anxiety, and stress were selected. A fixed effects or a random effects model was performed to pool effect sizes. Results from 13 publications (four cohort studies and nine cross-sectional studies) assessing the relationship between the consumption of a vegetarian diet and depression, anxiety and stress were included. The pooled effect size from 10 studies indicated no association between the consumption of a vegetarian diet and depression (pooled effect size: 1.02, 95% CI: 0.84-1.25, p = 0.817). Further, the pooled effect size from four studies suggests that a vegetarian diet is not associated with anxiety (pooled effect size: 1.09, 95% CI: 0.71-1.68, p = 0.678). Due to insufficient data for stress, we were not able to pool the results. Together, no significant associations were observed between the consumption of a vegetarian diet and depression or anxiety. Future cohort studies are needed to further investigate the effects of a vegetarian diet on these mental health outcomes.


Asunto(s)
Depresión , Dieta Vegetariana , Adulto , Ansiedad/epidemiología , Estudios Transversales , Depresión/epidemiología , Humanos , Estudios Prospectivos
6.
Crit Rev Food Sci Nutr ; 62(21): 5733-5743, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33749376

RESUMEN

Considerable controversy exists regarding the association between calcium intake and mortality risk. Therefore, this study aimed to summarize available findings on the associations of total, dietary and supplemental calcium intake with all-cause, CVD, and cancer mortality. We searched PubMed, Scopus, Embase, and ISI Web of Knowledge until February 2020 to identify eligible publications. Random-effects models were used to calculate pooled effect sizes (ESs) and 95% confidence intervals (CIs) for highest versus lowest categories of calcium intake and to incorporate variation between studies. Linear and non-linear dose-response analyses were done to evaluate the dose-response relations between calcium intake and mortality. 36 publications were included in this systematic review and 35 in the meta-analysis. During the follow-up periods ranging from 4.2 to 28 years, the total number of deaths from all causes was 163,657 (83703 from CVD and 83929 from cancer). Total calcium intake was associated with a lower risk of CVD mortality (Pooled ES for highest v lowest category: 0.91; 95% CI: 0.83-0.99, I2=68.1%, P < 0.001). Dietary calcium intake was associated with a lower risk of all-cause mortality (Pooled ES for highest v lowest category: 0.95; 95% CI: 0.92-0.99, I2=62.1%, P < 0.001). Supplemental calcium intake was not significantly associated with risk of all-cause, CVD and cancer mortality. In the dose-response analysis, there was evidence of nonlinear association between calcium intake and risk of all-cause, CVD, and cancer mortality. In conclusion, a non-linear association between calcium intake with all-cause, CVD, and cancer mortality risk was observed in this meta-analysis. Moderate intake of total (1000-1800), dietary (600-1200), and supplemental calcium (600-1200) was inversely significantly associated with mortality risk but higher calcium intake was not associated with a lower risk of mortality.


Asunto(s)
Enfermedades Cardiovasculares , Neoplasias , Calcio , Humanos , Estudios Prospectivos , Factores de Riesgo
7.
Adv Nutr ; 12(5): 1705-1722, 2021 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-33861304

RESUMEN

The etiology of cancer type may vary significantly due to anatomy, embryology, and physiology of the cancer site. Although the association between potato consumption and colorectal cancer (CRC) was summarized in a 2018 meta-analysis of 5 cohort studies, to the best of our knowledge, no meta-analysis has evaluated potato consumption in relation to multiple cancer sites in adults. Medline/PubMed, ISI Web of Knowledge, Scopus, and the Cochrane Database of Systematic Reviews were searched for relevant publications through August 2020. We selected cohort or case-control studies conducted in adults that reported risk estimates (relative risk [RRs], HRs, and ORs) of potato intake for any cancer type. Random effects meta-analyses compared high and low intake categories. Twenty prospective cohort studies (total n = 785,348) including 19,882 incident cases, and 36 case-control studies (21,822 cases; 66,502 controls) were included. Among cohort studies, we did not find an association between high versus low intake of total potato (white and yellow) consumption and overall cancers: 1.04 (95% CI: 0.96, 1.11; tau2 = 0.005, n = 18). We found no relation between total potato consumption (high compared with low intake) and risk of CRC, pancreatic cancer, colon, gastric, breast, prostate, kidney, lung, or bladder cancer in cohort or case-control studies. We did not find an association between high versus low consumption of potato preparations (boiled/fried/mashed/roasted/baked) and risk of gastrointestinal-, sex-hormone-, or urinary-related cancers in cohort or case-control studies. Certainty of the evidence was low for total cancer, CRC, colon, rectal, renal, pancreatic, breast, prostate, and lung cancer and very low for gastric and bladder cancer. In conclusion, potato intake or potato preparations were not associated with multiple cancer sites when comparing high and low intake categories. This finding was consistent with the findings from the 2018 meta-analysis regarding potato intake and risk of CRC.


Asunto(s)
Neoplasias , Solanum tuberosum , Adulto , Estudios de Cohortes , Humanos , Neoplasias/epidemiología , Neoplasias/etiología , Estudios Prospectivos , Factores de Riesgo
8.
Phytother Res ; 35(6): 3032-3045, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33484037

RESUMEN

Evidence suggests that garlic supplementation may have an effect on oxidative stress by augmenting the rate of enzymatic and non-enzymatic antioxidants and diminishing pro-oxidant enzymes. Given inconsistencies across studies, we aimed to systematically review the current literature and quantify the effects of garlic supplementation on oxidative stress. We conducted a systematic search with multiple databases (Scopus, PubMed, and Web of Science) to find relevant articles published prior to October 2020. Results were reported as bias-corrected standardized mean difference (Hedges' g) with 95% confidence intervals (CI) using random-effects models. Cochrane's Q and I squared (I2 ) tests were used to determine heterogeneity among the studies included. Twelve randomized controlled trials (RCTs) were included. Garlic doses ranged from 80 to 4,000 mg/day, and intervention duration varied between 2 and 24 weeks. Garlic supplementation increased serum level of total antioxidant capacity (TAC) (Hedges' g: 2.77, 95% CI: 1.37 to 4.17, p < 0.001) and superoxide dismutase (SOD) (Hedges' g: 13.76, 95% CI: 4.24 to 23.29, p = 0.004), while it reduced the malondialdehyde serum level (MDA) (Hedges' g: -1.94, 95% CI: -3.17 to -0.70, p = 0.002). Due to limited data available, glutathione (GSH) was not considered for the current meta-analysis. The nonlinear dose-response effect of garlic supplementation was not observed with regard to serum TAC and MDA levels (TAC: p-nonlinearity = 0.398; MDA: p-nonlinearity = 0.488). Garlic supplementation appears to improve serum levels of TAC, MDA, and SOD. Garlic supplementation may be useful to reduce oxidative stress and related diseases. Future studies with large sample sizes and longer duration are required to confirm these findings.


Asunto(s)
Antioxidantes/farmacología , Suplementos Dietéticos , Ajo , Estrés Oxidativo/efectos de los fármacos , Preparaciones de Plantas/farmacología , Adolescente , Adulto , Anciano , Antioxidantes/metabolismo , Biomarcadores/metabolismo , Femenino , Glutatión/metabolismo , Humanos , Masculino , Malondialdehído/sangre , Persona de Mediana Edad , Fitoterapia , Raíces de Plantas , Ensayos Clínicos Controlados Aleatorios como Asunto , Especies Reactivas de Oxígeno/metabolismo , Adulto Joven
9.
Public Health Nutr ; 24(7): 1787-1797, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-32933593

RESUMEN

OBJECTIVE: B-vitamins affect brain function through multiple pathways. Given limited evidence on the relationship between dietary intake of these vitamins and psychological disorders, we examined dietary intake of vitamin B6-9-12 in relation to psychological disorders among Iranian women. DESIGN: Cross-sectional study. Dietary intake was assessed using a valid and reliable FFQ. To assess psychological disorders, we used a version of the Depression Anxiety Stress Scale-21 validated in Iran. SETTING: Ten public health centres in southern Tehran, Iran. PARTICIPANTS: A total of 447 female participants aged 20-50 years. RESULTS: The median values of vitamin B6 (pyridoxine), B9 (folate) and B12 (cobalamin) were 1·30 mg/d, 313·89 µg/d and 3·99 µg/d, respectively. After adjustment for potential confounders, dietary vitamin B6 intake was associated with lower odds of depression (OR: 0·54; 95 % CI: 0·31, 0·95; Ptrend: 0·03). However, there was a positive association between dietary vitamin B12 intake with the odds of depression (OR: 2·05; 95 % CI: 1·17, 3·60; Ptrend: 0·01) and psychological distress (OR: 2·00; 95 % CI: 1·17, 3·41; Ptrend: 0·01). No association was found between vitamin B9 with any psychological disorders. CONCLUSIONS: Women with higher dietary intakes of vitamin B6 had lower likelihood of depression. However, women with higher dietary intake of vitamin B12 had higher odds of depression and psychological distress. Future prospective studies in different populations are needed to clarify whether B-vitamin deficiency is a cause or consequence of psychological disorders.


Asunto(s)
Complejo Vitamínico B , Estudios Transversales , Depresión/epidemiología , Depresión/etiología , Ingestión de Alimentos , Femenino , Ácido Fólico , Humanos , Irán/epidemiología , Estudios Prospectivos , Vitamina B 12
10.
Crit Rev Food Sci Nutr ; 61(17): 2921-2937, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32654500

RESUMEN

Previous studies reported inconsistent findings regarding the effects of magnesium supplementation on obesity measures. This study was done to quantify the effect of magnesium supplementation on body weight, Body Mass Index (BMI), Waist Circumference (WC), Body Fat (BF) percentage and Waist to Hip Ratio (WHR). Four online databases (Scopus, PubMed, Google Scholar and Cochrane library) were searched until March 2020 using relevant keywords. Random-effects model was used to pool effect sizes; Cochran's Q-test and I2 index assessed heterogeneity. Sensitivity analysis and Egger test were used to check the robustness of findings and the possibility of publication bias, respectively. Thirty-two RCTs including different dosage of magnesium (48-450 mg/d), and duration (6-24 weeks) were entered to this study. Magnesium supplementation resulted in a great reduction in BMI [Weighted Mean Difference (WMD): -0.21 kg/m2, 95% CI: -0.41, -0.001, P = 0.048, I2 = 89.5%, n = 22], which was mainly driven by the effect among those with magnesium deficiency, insulin resistance related disorders, and obesity at baseline. No significant change was observed in bodyweight, WC, BF percentage and WHR as compared to controls. However, the change in body weight, and WC was significant in subgroups of participants with insulin resistance related disorders, hypertension, obesity, magnesium deficiency at baseline, and females. We found a significant reduction in BMI following magnesium supplementation. The change in body weight and WC were evident in certain subgroups.


Asunto(s)
Suplementos Dietéticos , Magnesio , Adulto , Índice de Masa Corporal , Peso Corporal , Femenino , Humanos , Obesidad/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto , Circunferencia de la Cintura
11.
Complement Ther Med ; 56: 102588, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33197663

RESUMEN

OBJECTIVES: Previous studies have shown that red meat consumption has beneficial effects on health. The purpose of this study was to determine the relationship between red meat consumption and depression, anxiety and psychological distress in Tehrani women. METHODS: In this cross-sectional study, 482 women aged 20-50 years old referred to the health centers of Tehran University of Medical Sciences in 2018 were selected by multistage cluster sampling. The usual dietary intake was evaluated using a semi-quantitative food frequency questionnaire containing 168 items that its validity and reliability were approved previously. The red meat category was defined as the sum of red meats (beef, lamb), and organ meats (beef liver, kidney, and heart, ruminant meat). Psychological disorders were assessed using a validated Depression, Anxiety, Stress Scales (DASS) questionnaires with 21-items. In the logistic regression analysis, the results were adjusted to the confounding factors. RESULTS: The mean age of the study participants was 31.87 ± 7.6 years. The prevalence of depressive symptoms, anxiety and psychological distress among participants was 34%, 40% and 42%, respectively. After controlling for potential confounders, women in the highest quartile of red meat had a highest prevalence of depressive symptoms (OR: 2.51; 95% CI: 1.32-4.76; p = 0.002), anxiety (OR: 1.82; 95% CI: 1.00-3.29; p = 0.034) and stress (OR: 3.47; 95% CI: 1.88-6.42; p < 0.001) compared with those in the lowest quartile. CONCLUSIONS: We found a significant association between red meat intake and mental health in women. Prospective studies are needed to confirm these findings.


Asunto(s)
Ansiedad/epidemiología , Depresión/epidemiología , Dieta/estadística & datos numéricos , Carne Roja/estadística & datos numéricos , Adulto , Estudios Transversales , Femenino , Humanos , Irán/epidemiología , Salud Mental , Estrés Psicológico , Encuestas y Cuestionarios , Adulto Joven
12.
BMC Res Notes ; 13(1): 557, 2020 Dec 09.
Artículo en Inglés | MEDLINE | ID: mdl-33298144

RESUMEN

OBJECTIVE: Diet is a fundamental modifiable risk factor for the development of depression and anxiety. However, no evidence currently exists regarding the association of food quality score (FQS) and mental health in Iranian women. This study investigated the relationship between food quality score, depression, anxiety and stress in Iranian women. RESULTS: Results showed that 35%, 41% and 42% of participants had depression, anxiety and stress, respectively. The average age of participants was 31.40 ± 7.47 years. A significant association was indicated between FQS and symptoms of depression (OR: 0.36; 95% CI 0.21, 0.63), anxiety (OR: 0.31; 95% CI 0.18, 0.53), and stress (OR: 0.39; 95% CI 0.23, 0.66) in both crude and adjusted models.


Asunto(s)
Depresión , Salud Mental , Adulto , Ansiedad/epidemiología , Estudios Transversales , Depresión/epidemiología , Femenino , Calidad de los Alimentos , Humanos , Irán/epidemiología , Encuestas y Cuestionarios , Adulto Joven
13.
Clin Nutr ESPEN ; 39: 87-95, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32859334

RESUMEN

OBJECTIVE: The aging process is associated with several chronic diet-related complications, including cardiovascular diseases. Therefore, the objective was to examine the association between DASH and Mediterranean dietary pattern (MDP) on cardiovascular risk factors and inflammatory markers in older adult men. METHODS: A cross-sectional study was performed on 357 older adult men who were randomly selected from health centers across Tehran, Iran. Dietary intakes, anthropometric measures, biochemical markers, and general characteristics were also collected. Multivariate logistic regression was used to estimate odds ratios of outcomes across medians of dietary patterns, respectively. RESULTS: After adjusting for possible confounders, greater adherence to the MDP was associated with lower waist circumference, triacylglycerol, high-sensitivity c-reactive protein, fibrinogen, and higher HDL-C (p < 0.05). Greater adherence to the DASH diet was associated with lower fibrinogen (p < 0.05). Adherence to the MDP was inversely associated with diastolic blood pressure (OR, 0.35; 95% CI, 0.14-0.79; P = 0.01) and fibrinogen levels (OR, 0.33; 95% CI, 0.20-0.52; P < 0.001). Moreover, greater adherence to the DASH diet (second vs first category) was associated with reduced risk of high diastolic blood pressure (OR, 0.11; 95% CI, 0.04-0.34; P < 0.001), insulin levels (OR, 0.44; 95% CI, 0.28-0.72; P < 0.001), hs-CRP (OR, 0.53; 95% CI, 0.33-0.85; P = 0.009), and fibrinogen (OR, 0.37; 95% CI, 0.21-0.64; P < 0.001). CONCLUSION: There was an inverse association between the DASH and MDP with several cardiovascular risk factors. Future, longitudinal study designs are needed to confirm these results.


Asunto(s)
Enfermedades Cardiovasculares , Enfoques Dietéticos para Detener la Hipertensión , Anciano , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/prevención & control , Estudios Transversales , Dieta , Factores de Riesgo de Enfermedad Cardiaca , Humanos , Irán/epidemiología , Estudios Longitudinales , Masculino , Factores de Riesgo
14.
Cytokine ; 135: 155239, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32799012

RESUMEN

PURPOSE: Randomized Clinical Trials (RCTs) have provided varied and conflicting findings regarding the effect of N-acetylcysteine (NAC) on inflammatory biomarkers. This study was conducted to review existing literature to determine whether NAC supplementation can affect inflammatory biomarkers in adults. METHODS: Bibliographic databases of Scopus, and PubMed were used for relevant papers published until October 2019. Results were reported as weighted mean differences (WMD) with 95% confidence intervals (CI) using multi-level models. Cochrane's Q and I-squared (I2) tests were used to determine heterogeneity among studies. RESULTS: Twenty-four RCTs which include 1057 sample size were entered to analysis. NAC doses and intervention duration ranged from 400 to 2000 mg/d, and 1 to 80 weeks, respectively. Oral supplementation of NAC reduced serum level of C-reactive protein (CRP) [WMD: -0.61 mg/L, 95% CI: -1.18 to -0.03, P = 0.039, I2 = 79.6%], and interleukin-6 (IL-6) [WMD: -0.43 pg/mL, 95% CI: -0.69 to -0.17, P = 0.001, I2 = 89.3%]. However, the effect of oral NAC supplementation on other inflammatory biomarkers was nonsignificant. Dose-response investigation showed a non-linear association between oral NAC supplementation with CRP. CONCLUSION: Oral NAC supplementation reduced serum level of CRP and IL-6, but did not affect other inflammatory biomarkers. Nevertheless, more RCTs seems to be required to explore how NAC in different dosage and different routes of administration can affect inflammatory biomarkers.


Asunto(s)
Acetilcisteína , Biomarcadores , Inflamación , Adulto , Humanos , Acetilcisteína/farmacología , Biomarcadores/sangre , Inflamación/sangre , Inflamación/metabolismo , Ensayos Clínicos Controlados Aleatorios como Asunto
15.
Crit Rev Food Sci Nutr ; 60(7): 1063-1076, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30638040

RESUMEN

A systematic review and meta-analysis of prospective cohort studies was conducted to examine the association of potato consumption and risk of all-cause, cancer and cardiovascular mortality in adults. We searched PubMed, Scopus databases up to September 2018 for all relevant published papers. All analyses were performed on HRs or RRs and 95% CIs. In twenty prospective studies, 25,208 cases were reported for all-cause mortality, 4877 for cancer mortality and 2366 for CVD mortality. No significant association was found between potato consumption and risk of all-cause (0.90; 95% CI: 0.8, 1.02, p = 0.096) and cancer (1.09; 95% CI: 0.96, 1.24, P = 0.204) mortality. In addition, no significant linear association was found between each 100 g/d increments in potato consumption and risk of all-cause (P = 0.7) and cancer (P = 0.09) mortality. Moreover, nonlinear association between potato consumption and risk of cancer mortality was non-significant (P-nonlinearity = 0.99). In addition, two of three studies which examined the association of potato consumption with CVD mortality did not find any significant relationship. There was no evidence for publication bias in this study. We failed to find significant association between potato consumption and risk of mortality. Further studies are required to confirm this issue.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Causas de Muerte/tendencias , Encuestas sobre Dietas , Neoplasias/epidemiología , Solanum tuberosum , Humanos , Estudios Prospectivos , Factores de Riesgo
16.
Crit Rev Food Sci Nutr ; 60(5): 859-872, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30880409

RESUMEN

Background: Previous studies reported inconsistent findings regarding the effects of psyllium supplementation on obesity measures. This systematic review and meta-analysis was performed to summarize data from available randomized clinical trials (RCTs) on the effect of psyllium supplementation on body weight, body mass index (BMI), and waist circumference (WC) in adults.Methods: PubMed, SCOPUS, Cochrane Library, and Google Scholar were searched to identify relevant articles up to August 2018. The effect sizes were presented as weighted mean difference (WMD) and 95% confidence intervals (CI) by using random effects model. To detect dose-response relationships, we used fractional polynomial modeling.Results: A total of 22 RCTs were included. Meta-analysis did not find any significant effect of psyllium supplementation on body weight (MD: -0.28 kg, 95% CI: -0.78, 0.21, p = 0.268), BMI (MD: -0.19 kg/m2, 95% CI: -0.55, 0.15, p = 0.27) and WC (MD: -1.2 cm, 95% CI: -2.6, 0.2, p = 0.09). Subgroup analysis showed that psyllium dosage, kind of psyllium administration, duration of trial, study design, sample size, and gender were potential sources of heterogeneity. Moreover, there was nonlinear association between duration of psyllium consumption, BMI and WC.Conclusion: Psyllium supplementation does not reduce body weight, BMI, and WC significantly.


Asunto(s)
Índice de Masa Corporal , Peso Corporal/efectos de los fármacos , Suplementos Dietéticos , Psyllium/farmacología , Circunferencia de la Cintura/efectos de los fármacos , Adulto , Relación Dosis-Respuesta a Droga , Humanos , Psyllium/administración & dosificación , Ensayos Clínicos Controlados Aleatorios como Asunto
17.
J Cardiovasc Thorac Res ; 11(3): 237-243, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31579465

RESUMEN

Introduction: Limited studies are available regarding the relationship between Food Quality Score (FQS) and cardiovascular disease (CVD) risk factors. Thus, this study was aimed to investigate the association of FQS with CVD risk factors in women. Methods: This cross-sectional study was carried out among 368 women aged 20-50 years who randomly selected from health centers across Tehran, Iran. Dietary intake was collected using a reliable and validated food frequency questionnaire (FFQ). The FQS includes vegetables, fruits, whole grains, yogurt, nuts and legumes, coffee, refined grains, desserts and ice cream, sugar-sweetened beverages, red meats, fried food consumed outside the home, processed meats, potato and potato chips. Standard methods were used to assess blood pressure, biochemical and anthropometric measures. Multivariate logistic regression was used to examine the association between FQS and CVD risk factors. Results: Participant mean age and body mass index (BMI) were 30.7 ± 6.9 years and 24.3 ± 4.0 kg/m2, respectively. After taking potential confounders into account, FQS had no significant association with risk of overweight and obesity [Odds ratio (OR): 1.1, 95% confidence interval (CI): 0.68, 1.8; P = 0.683], diabetes (OR: 0.62, 95% CI: 0.22, 1.74; P = 0.374), metabolic syndrome (OR: 0.36, 95% CI: 0.10, 1.32; P = 0.127), hypercholesterolemia (OR: 0.54, 95% CI: 0.29, 1.01; P= 0.051), or hypertriglyceridemia (OR: 1.63, 95% CI: 0.71, 3.70; P = 0.244). Conclusion: The results showed that FQS was not significantly associated with CVD risk factors among women. Prospective cohort studies are warranted to confirm our findings.

18.
Nutr Diet ; 76(5): 580-588, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31407457

RESUMEN

AIM: There is limited evidence regarding the association between the Elderly Dietary Index (EDI) and cardiovascular disease (CVD) risk factors. The aim of the study was to examine how the EDI relates to CVD risk factors in elderly men. METHODS: In this cross-sectional study, we recruited 362 elderly men aged 60 to 80 years old. Diet was measured with a validated and reliable food frequency questionnaire. The EDI assesses adherence to nutritional recommendations for older adults based on the Modified MyPyramid for Older Adults. The EDI includes meat, fish, fruits, vegetables, cereals, legumes, olive oil, bread and dairy products. Anthropometric indices, biochemical markers and blood pressure were measured using standard methods. Multivariate logistic regression assessed relationships between tertiles of EDI scores and CVD risk factors. RESULTS: The mean age and body mass index of participants were 65.43 ± 5.63 years and 25.34 ± 3.17 kg/m2 , respectively. After controlling for potential confounders, the EDI was inversely associated with the risk of obesity and overweight (Odds ratio [OR]: 0.49, 95% confidence interval [CI]: 0.27, 0.89; P = .004) and was associated with a reduced likelihood of elevated low-density lipoprotein cholesterol (LDL-C) concentrations (OR: 0.19, 95% CI: 0.09, 0.41; P < .001). CONCLUSIONS: Higher EDI was associated with lower risk of overweight and obesity and high LDL-C concentrations. However, there was no significant association between EDI and other CVD risk factors in elderly men.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Dieta , Evaluación Geriátrica , Anciano , Anciano de 80 o más Años , Índice de Masa Corporal , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/etiología , Estudios Transversales , Registros de Dieta , Humanos , Irán/epidemiología , Masculino , Salud del Hombre , Necesidades Nutricionales , Factores de Riesgo , Encuestas y Cuestionarios
19.
J Nutr ; 149(4): 605-618, 2019 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-30949665

RESUMEN

BACKGROUND: Conflicting findings on the effects of garlic supplementation on inflammatory biomarkers have been observed in randomized clinical trials (RCTs). OBJECTIVES: The aim of this study was to summarize study results regarding the effects of garlic supplementation on serum inflammatory biomarkers in adults. METHODS: We searched Scopus, PubMed, Google Scholar and Cochrane library databases for relevant papers published until April 2018, using keywords such as "garlic" and "inflammatory biomarker." We included RCTs that 1) were conducted in adults, 2) examined the effects of garlic supplementation on inflammatory biomarkers compared to a control group, and 3) reported sufficient data on inflammatory biomarkers. Results were reported as weighted mean differences (WMD) with 95% CI using random effects models. Cochrane's Q and I-squared (I2) tests were used to determine heterogeneity among studies. Funnel plots and Egger's regression test were used to assess publication bias. RESULTS: Sixteen RCTs were included. Garlic doses ranged from 12 to 3600 mg/d, and intervention duration ranged from 2 to 52 wk. Garlic administration significantly reduced serum C-reactive protein (CRP) (n = 13) (WMD: -0.61 mg/L, 95% CI: -1.12, -0.11, P = 0.018, I2 = 76.9%), IL-6 (n = 5) (WMD: -0.73 ng/L, 95% CI: -1.06, -0.40, P < 0.001, I2 = 0%), and TNF (n = 7) (WMD: -0.26 ng/L, 95% CI: -0.41, -0.12, P < 0.001, I2 = 0.0%), compared to controls. However, the effect of garlic supplementation on serum adiponectin (n = 3) (WMD: 0.18 µg/L, 95% CI: -0.21, 0.57, P = 0.35, I2 = 60.7%) and leptin (n = 2) (WMD: -1.25 µg/L, 95% CI: -2.64, 0.14, P = 0.07, I2 = 0.0%) concentrations were not significant. CONCLUSION: In this meta-analysis of RCTs, we found that garlic supplementation reduced serum concentrations of CRP, TNF, IL-6, but did not affect serum adiponectin and leptin in adults. More RCTs are needed to test the effects of garlic supplementation on inflammation.


Asunto(s)
Proteína C-Reactiva/metabolismo , Suplementos Dietéticos , Ajo , Interleucina-6/metabolismo , Factor de Necrosis Tumoral alfa/sangre , Adulto , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Interleucina-6/genética
20.
Phytother Res ; 33(5): 1246-1257, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30838686

RESUMEN

Present meta-analysis investigates the effects of phytosterols and phytostanol (PS) supplementation on anthropometric indices, using data from randomized controlled trials. We performed a systematic search in the databases: PubMed, Scopus, Cochran, and Web of Science. Weighted mean difference (WMD) with 95% confidence intervals (CIs) were presented. Overall, 79 randomized controlled trials investigated the effects of PS on anthropometric indices. Meta-analysis results did not reveal any significant effect of PS supplementation on weight (66 trials-WMD: -0.083 kg; CI [-0.233, 0.066]; I2  = 42.5%), percentage fat mass (6 trials-WMD: -0.090%; CI [-0.789, 0.610]; I2  = 0.0%), and waist circumference (WC; 5 trials-WMD: -0.039 cm; CI [-0.452, 0.374]; I2  = 0.0%). However, body mass index (BMI) significantly decreased after PS supplementation (39 trials-WMD: -0.063 kg/m2, p = 0.024, I2  = 25.1%). Subgroup analyses showed that PS supplementation in subjects with baseline BMI ≥25 and hyperlipidemic significantly decreased body weight and BMI. The overall results showed that although PS supplementation did not affect anthropometric indices (except BMI), baseline status regarding BMI and hyperlipidemia and also dose and duration could be contributing factors for favorable effects.


Asunto(s)
Suplementos Dietéticos/análisis , Obesidad/tratamiento farmacológico , Fitosteroles/química , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto
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