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Turan-Demirci B, Isgin-Atici K, Sendur SN, Yuce D, Erbas T, Buyuktuncer Z. Dietary Total Polyphenol, Flavonoid, and Lignan Intakes Are Associated with Obesity and Diabetes-Related Traits: A Case-Control Study. Metab Syndr Relat Disord 2024; 22:454-462. [PMID: 38588574 DOI: 10.1089/met.2023.0248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
Purpose: Dietary phytochemicals have been under examination as adjuvants for the prevention and treatment of obesity and diabetes. This study aimed at examining the potential associations of dietary "Phytochemical Index" (PI) and polyphenol intake with obesity and diabetes-related parameters. Materials and Methods: The case-control study involved 331 participants (156 overweight/obese and 175 normal weight), aged 18-50 years. Dietary intake was assessed using the 24-hr dietary recall method, and the PI score was calculated as the percentage of energy intake provided by phytochemical-rich foods. Polyphenol intakes were calculated using Phenol-Explorer and U.S. Department of Agriculture databases. Anthropometrical measurements were taken, serum glucose, insulin, and lipid profiles were analyzed, homeostatic model assessment for insulin resistance (HOMA-IR) was calculated, and blood pressure was measured. Linear regression analyses were used to examine the potential associations. Results: Participants with higher PI scores had higher total and some sub-classes polyphenol intakes compared with lower ones (P < 0.05, for each). Dietary PI score was not associated with any of the anthropometrical measurements; however, total polyphenol and flavonoids intakes were inversely associated with body mass index (β = -0.269, P = 0.049; β = -0.262, P = 0.048; respectively), waist circumference (β = -0.127, P = 0.021; β = -0.130, P = 0.016; respectively), and waist-to-hip ratio (β = -20.724, P = 0.032; β = -22.199, P = 0.018; respectively) after adjusting for potential confounders. Either dietary PI score or total and sub-class polyphenol intakes were not associated with a better metabolic profile, except for the lignan intake, which was inversely associated with HOMA-IR (β = -0.048, P = 0.011). Conclusions: Higher dietary polyphenol intake may have potential in the prevention of obesity and diabetes, and validated practical tools are essential for the assessment of polyphenol intake in clinical practice.
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Affiliation(s)
- Busra Turan-Demirci
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Cankiri Karatekin University, Cankiri, Turkey
| | - Kubra Isgin-Atici
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Amasya University, Amasya, Turkey
| | - Suleyman Nahit Sendur
- Department of Endocrinology and Metabolism, School of Medicine, Hacettepe University, Ankara, Turkey
| | - Deniz Yuce
- Department of Preventive Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Tomris Erbas
- Department of Endocrinology and Metabolism, School of Medicine, Hacettepe University, Ankara, Turkey
| | - Zehra Buyuktuncer
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
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Park Y, Park K. Phytochemical Index and the Risk of Gastritis/Gastric Ulcer among Korean Adults: A Prospective Cohort Study. Nutrients 2024; 16:2514. [PMID: 39125393 PMCID: PMC11314585 DOI: 10.3390/nu16152514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/25/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Phytochemicals found in fruits, vegetables, and plant-based foods have potential protective effects against various diseases, including gastric disorders. This study aimed to analyze the longitudinal association between phytochemical intake and the risk of gastritis/gastric ulcer in Korean adults. This was a prospective cohort study, a community-based cohort conducted as part of the Korean Genome and Epidemiology Study, examining the association between phytochemical intake and the risk of gastritis/gastric ulcer in Korean adults. Dietary information was collected using a validated semi-quantitative food frequency questionnaire, and the phytochemical index (PI) was calculated. The study included 7377 Korean men and women aged 40-69 years without gastritis/gastric ulcer at baseline of the Korea Association Resource study in Korea. The incidence of gastritis/gastric ulcer was determined using a survey questionnaire administered by trained staff. Multivariate Cox proportional hazards regression was used to calculate the hazard ratio and 95% confidence interval to determine the association between PI and risk of gastritis/gastric ulcer. During the median follow-up period of 9.50 years, 729 cases were reported. The fully adjusted model showed a significantly lower risk of gastritis/gastric ulcer in the highest PI quartile compared to the lowest (hazard ratio: 0.78, 95% confidence interval: 0.61-0.98), and this association was linear (p for trend = 0.01). This research indicates that incorporating foods abundant in phytochemicals into one's diet could be associated with a reduced risk of developing gastritis/gastric ulcers. These findings underscore the importance of further investigating the role of phytochemical-rich diets in gastrointestinal health, as demonstrated in this study.
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Affiliation(s)
| | - Kyong Park
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Republic of Korea;
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Hashemi Dehkordi V, Khoshhali M, Heidari-Beni M, Hashemi Dehkordi E, Hashemipour M, Mostofizadeh N, Daniali SS, Kelishadi R. Association Between Dietary Phytochemical Index and Neonatal Thyroid Function. J Pregnancy 2024; 2024:9558023. [PMID: 38919582 PMCID: PMC11199066 DOI: 10.1155/2024/9558023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 09/11/2023] [Accepted: 04/25/2024] [Indexed: 06/27/2024] Open
Abstract
Background: Thyroid hormones regulate fetal growth and differentiation of several tissues. Maternal dietary patterns may be correlated with changes in the level of neonatal thyroid-stimulating hormone (TSH). We hypothesized that since maternal nutrition affects birth weight and offspring growth, it may also impact endocrine patterns in offspring. This study is aimed at assessing the relationship between maternal dietary phytochemical index (DPI) in the first trimester of pregnancy and neonatal cord blood thyroid hormone levels. Methods: This cross-sectional study is a substudy of a birth cohort. Overall, 216 mothers, aged 16-45 years, were recruited in their first trimester of pregnancy. To calculate DPI, the daily energy percentage of phytochemical-rich foods was divided by the total daily energy intake. At delivery time, TSH and free thyroxine (FT4) levels were measured in cord blood samples using chemiluminescence immunoassay. Results: The mean (standard deviation (SD)) age of mothers was 29.56 (5.50) years, and 47% of newborns were girls. The mean (SD) of DPI in the first, second, third, and fourth quartiles was 25.03 ± 4.67, 33.87 ± 2.18, 40.64 ± 2.10, and 51.17 ± 4.98, respectively. There was not any significant correlation between DPI score with cord serum TSH and FT4 levels in crude and adjusted analysis. Conclusion: No significant relationship between maternal DPI with cord serum TSH and FT4 levels was shown. Limited experience exists about the effect of maternal diet quality indices on neonatal thyroid function, and further studies are needed in this regard.
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Affiliation(s)
- Vida Hashemi Dehkordi
- Department of Pediatric EndocrinologyEndocrine and Metabolism Research CenterIsfahan University of Medical Sciences, Isfahan, Iran
| | - Mehri Khoshhali
- Department of PediatricsChild Growth and Development Research CenterResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
| | - Motahar Heidari-Beni
- Department of NutritionChild Growth and Development Research CenterResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Hashemi Dehkordi
- Department of Pediatric EndocrinologyChild Growth and Development Research CentreResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
| | - Mahin Hashemipour
- Department of Pediatric EndocrinologyChild Growth and Development Research CentreResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
- Metabolic Liver Diseases Research CenterImam Hossein Children's HospitalIsfahan University of Medical Sciences, Isfahan, Iran
| | - Neda Mostofizadeh
- Department of Pediatric EndocrinologyEndocrine and Metabolism Research CenterIsfahan University of Medical Sciences, Isfahan, Iran
| | - Seyede Shahrbanoo Daniali
- Department of PediatricsChild Growth and Development Research CenterResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Department of PediatricsChild Growth and Development Research CenterResearch Institute for Primordial Prevention of Non-Communicable DiseaseIsfahan University of Medical Sciences, Isfahan, Iran
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Aryal D, Joshi S, Thapa NK, Chaudhary P, Basaula S, Joshi U, Bhandari D, Rogers HM, Bhattarai S, Sharma KR, Regmi BP, Parajuli N. Dietary phenolic compounds as promising therapeutic agents for diabetes and its complications: A comprehensive review. Food Sci Nutr 2024; 12:3025-3045. [PMID: 38726403 PMCID: PMC11077226 DOI: 10.1002/fsn3.3983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/06/2024] [Accepted: 01/10/2024] [Indexed: 05/12/2024] Open
Abstract
In the middle of an ever-changing landscape of diabetes care, precision medicine, and lifestyle therapies are becoming increasingly important. Dietary polyphenols are like hidden allies found in our everyday meals. These biomolecules, found commonly in fruits, vegetables, and various plant-based sources, hold revolutionary potential within their molecular structure in the way we approach diabetes and its intimidating consequences. There are currently numerous types of diabetes medications, but they are not appropriate for all patients due to limitations in dosages, side effects, drug resistance, a lack of efficacy, and ethnicity. Currently, there has been increased interest in practicing herbal remedies to manage diabetes and its related complications. This article aims to summarize the potential of dietary polyphenols as a foundation in the treatment of diabetes and its associated consequences. We found that most polyphenols inhibit enzymes linked to diabetes. This review outlines the potential benefits of selected molecules, including kaempferol, catechins, rosmarinic acid, apigenin, chlorogenic acid, and caffeic acid, in managing diabetes mellitus as these compounds have exhibited promising results in in vitro, in vivo, in silico, and some preclinical trials study. This encompassing exploration reveals the multifaceted impact of polyphenols not only in mitigating diabetes but also in addressing associated conditions like inflammation, obesity, and even cancer. Their mechanisms involve antioxidant functions, immune modulation, and proinflammatory enzyme regulation. Furthermore, these molecules exhibit anti-tumor activities, influence cellular pathways, and activate AMPK pathways, offering a less toxic, cost-effective, and sustainable approach to addressing diabetes and its complications.
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Affiliation(s)
- Dipa Aryal
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Soniya Joshi
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Nabin Kumar Thapa
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Pratiksha Chaudhary
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Sirjana Basaula
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Usha Joshi
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Damodar Bhandari
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Hannah M. Rogers
- Department of ChemistryFlorida Agricultural and Mechanical UniversityTallahasseeFloridaUSA
| | | | - Khaga Raj Sharma
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
| | - Bishnu P. Regmi
- Department of ChemistryFlorida Agricultural and Mechanical UniversityTallahasseeFloridaUSA
| | - Niranjan Parajuli
- Biological Chemistry Lab, Central Department of ChemistryTribhuvan UniversityKathmanduNepal
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Mehranfar S, Jalilpiran Y, Ejtahed HS, Seif E, Shahrestanaki E, Mahdavi-Gorabi A, Esmaeili-Abdar M, Larijani B, Qorbani M. Association of dietary phytochemical index with cardiometabolic risk factors. INT J VITAM NUTR RES 2023; 93:559-576. [PMID: 35997240 DOI: 10.1024/0300-9831/a000763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Objective(s): Cardio-metabolic risk factors are becoming a global health concern. To address this problem, one of the proposed ways is to focus on phytochemical-rich foods consumption. Therefore, we aimed to summarize the results of observational studies (cohorts, case-control, and cross-sectional) that investigated the association between dietary phytochemical index (PI) as a new index for evaluating phytochemical-rich food intake and various risk factors of cardio-metabolic disorders. Methods: We conducted a comprehensive systematic review through PubMed, Scopus, and Web of Science databases. The literature search was performed up to August 2021 with no publication year restriction on observational studies investigating the association between PI and cardiometabolic risk factors on adults and children. A random-effect meta-analysis was used. Results: Overall, 16 articles (cross-sectional, case-control, cohort) were eligible for this systematic review and 8 studies with 99771 participants were included in the meta-analysis. Random effect meta-analysis showed that adherence to higher dietary PI decrease the odds of abdominal obesity (OR: 0.73, 95% CI: 0.58, 0.88, I2: 84.90), generalized obesity (OR: 0.84, 95% CI: 0.69, 0.98, I2: 68.10), hypertriglyceridemia (OR: 0.81, 95% CI: 0.73, 0.89, I2: 0.00), hypertension (OR: 0.86, 95% CI: 0.73, 0.99, I2: 7.02), and MetS (OR: 0.79, 95% CI: 0.69, 0.88, I2: 84.90). However, results considering the associations between dietary PI with glycemic indices, and low high-density lipoprotein cholesterol (HDL-C) were not significant (p<0.05). Conclusion: Evidence showed adverse associations between dietary PI and some cardio-metabolic risk factors such as obesity, hypertriglyceridemia, hypertension and metabolic syndrome.
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Affiliation(s)
- Sanaz Mehranfar
- Department of Community Nutrition, School of Nutritional Science and Dietetics, Tehran University of Medical Sciences, Iran
| | - Yahya Jalilpiran
- Student Research Committee, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Iran
- Students' Scientific Research Center, Tehran University of Medical Sciences, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Iran
| | - Ehsan Seif
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Ehsan Shahrestanaki
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Esmaeili-Abdar
- Social Determinants of Health Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Iran
| | - Mostafa Qorbani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Iran
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Gamba M, Roa-Diaz ZM, Raguindin PF, Glisic M, Bano A, Muka T, Franco OH, Marques-Vidal P. Association between dietary phytochemical index, cardiometabolic risk factors and metabolic syndrome in Switzerland. The CoLaus study. Nutr Metab Cardiovasc Dis 2023; 33:2220-2232. [PMID: 37598028 DOI: 10.1016/j.numecd.2023.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 06/16/2023] [Accepted: 07/13/2023] [Indexed: 08/21/2023]
Abstract
BACKGROUND AND AIMS Plant-based diets are associated with reduced cardiometabolic risk factors (CRFs) and lower risk of metabolic syndrome (MetS), probably via phytochemicals acting synergistically. However, dietary phytochemical content estimation is challenging; therefore, the dietary phytochemical index (DPI) was proposed as a practical way to assess total dietary phytochemical content from phytochemical-rich foods (PRFs). We evaluated the association between DPI with CRFs and MetS and its components. METHODS AND RESULTS Cross-sectional analysis of 2009-2012 data of Colaus cohort study (Lausanne, Switzerland), including 3879 participants (mean age 57.6 ± 10.4 years, 53.5% women). Dietary intake was assessed via a validated food frequency questionnaire. DPI was calculated as the total energy intake percentage obtained from PRFs consumption and assessed as quartiles. Associations were determined using multivariable linear and logistic regression for CRFs and MetS, respectively. Median DPI value was 25.5 (interquartile range: 17.7-34.6). After multivariable-adjusted analyses, significant inverse associations were observed between the last two highest DPI quartiles and waist circumference (WC), body mass index (BMI), insulin, leptin, and hs-CRP. No significant associations were observed for MetS or its components except for central obesity, as subjects in the highest DPI quartile had lower odds (OR: 0.78; 95% CI: 0.62, 0.97) than those in lowest quartile. CONCLUSION A diet high in PRFs assessed via DPI is associated with lower WC, BMI, insulin, leptin, hs-CRP values, and lower odds of central obesity, indicating a potential protective effect of phytochemical intake on these CRFs and highlighting the importance of high PRFs intake in promoting cardiometabolic health.
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Affiliation(s)
- Magda Gamba
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Graduate School for Health Sciences, University of Bern, Bern, Switzerland.
| | - Zayne M Roa-Diaz
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Graduate School for Health Sciences, University of Bern, Bern, Switzerland
| | - Peter Francis Raguindin
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Swiss Paraplegic Research, Nottwil, Switzerland; Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Marija Glisic
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Swiss Paraplegic Research, Nottwil, Switzerland
| | - Arjola Bano
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Taulant Muka
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Oscar H Franco
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland; Department of Global Public Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
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Han YJ, Baek JH, Jung SK, Yang JS, Shin NR, Park MY. Association between the Dietary Phytochemical Index and Lower Prevalence of Obesity in Korean Preschoolers. Nutrients 2023; 15:2439. [PMID: 37299402 PMCID: PMC10255342 DOI: 10.3390/nu15112439] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Little is known regarding Korean preschooler dietary phytochemical index (DPIs). We used the 24 h recall data of 1196 participants aged 3-5 years from the Korea National Health and Nutrition Examination Survey to study the association between dietary food intake and obesity prevalence. The amount of dietary intake by food group was compared according to sex and DPI quartile. Multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using logistic regression models. The average total DPI and energy from phytochemical food groups were not significantly different according to sex, although boys had a higher total daily food intake. Different inclinations between DPI quartiles and amount of intake were observed in the food groups; specifically, beans showed a higher intake difference between Q1 and Q4 for boys than in the other food groups. The highest DPI quartile had a significantly lower obesity prevalence than the lowest DPI quartile in all models for boys only when obesity prevalence by weight percentile was analyzed (Model 3, OR: 0.287, 95% CI: 0.095-0.868, p for trend < 0.05). Our results suggest a high DPI could help prevent obesity in preschoolers.
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Affiliation(s)
- Ye-Ji Han
- Department of Food and Nutrition, Sungshin Women’s University, Seoul 01133, Republic of Korea;
| | - Jung-Hyun Baek
- Department of Pediatrics, Woori Children’s Hospital, Seoul 08291, Republic of Korea; (J.-H.B.); (S.-K.J.)
| | - Seong-Kwan Jung
- Department of Pediatrics, Woori Children’s Hospital, Seoul 08291, Republic of Korea; (J.-H.B.); (S.-K.J.)
| | - Joshua SungWoo Yang
- Healthcare Development Head, R&D Center, NGeneBio Inc., Seoul 08390, Republic of Korea; (J.S.Y.); (N.-R.S.)
| | - Na-Rae Shin
- Healthcare Development Head, R&D Center, NGeneBio Inc., Seoul 08390, Republic of Korea; (J.S.Y.); (N.-R.S.)
| | - Mi-Young Park
- Institute of Health and Environment, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
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Hamedi-Shahraki S, Jowshan MR, Zolghadrpour MA, Amirkhizi F, Asghari S. Dietary phytochemical index is favorably associated with oxidative stress status and cardiovascular risk factors in adults with obesity. Sci Rep 2023; 13:7035. [PMID: 37120685 PMCID: PMC10148862 DOI: 10.1038/s41598-023-34064-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/24/2023] [Indexed: 05/01/2023] Open
Abstract
Phytochemicals are bioactive compounds found in plant-based foods. Consumption of phytochemical-rich foods has been associated with cardiovascular and metabolic diseases prevention in various populations. To quantify the phytochemical content of the diet, dietary phytochemical index (DPI) was established which is defined as the proportion of daily energy intake derived from foods rich in phytochemicals. The purpose of this study was to evaluate the association between the DPI and oxidative stress markers and cardiovascular risk factors in obese adults. In this cross-sectional study, a total of 140 adults aged 20-60 years and body mass index (BMI) of ≥ 30 kg/m2 were included. A validated food frequency questionnaire (FFQ) was used to collect information on dietary intakes. The DPI was calculated based on the following formula: DPI = [daily energy obtained from foods rich in phytochemicals (kcal)/total daily energy intake (kcal) × 100]. There was an inverse association between DPI and serum concentrations of Malondialdehyde (MDA) (P = 0.004), triglyceride (TG) (P-trend = 0.003), high-sensitive C-reactive protein (hs-CRP) (P = 0.017), and erythrocyte superoxide dismutase (SOD) activity (P = 0.024). Total antioxidant capacity (TAC) was positively associated with DPI score (P = 0.045). No significant relationship was found between the DPI score and fasting blood sugar (FBS), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), total oxidant status (TOS), glutathione peroxidase (GPx), catalase (CAT), and anthropometric parameters as well as systolic and diastolic blood pressure. The current study found that there was a significant inverse association between DPI and oxidative stress, inflammation, and hypertriglyceridemia as cardiovascular disease (CVD) risk factors in obese population. However, further research is needed to confirm these findings.
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Affiliation(s)
- Soudabeh Hamedi-Shahraki
- Department of Epidemiology and Biostatistics, Faculty of Public Health, Zabol University of Medical Sciences, Zabol, Iran
| | - Mohammad-Reza Jowshan
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Hojjatdoust St., Naderi St.,, No#44, Keshavarz Blvd, 141556117, Tehran, Iran
| | | | - Farshad Amirkhizi
- Department of Nutrition, Faculty of Public Health, Zabol University of Medical Sciences, Zabol, Iran
| | - Somayyeh Asghari
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Hojjatdoust St., Naderi St.,, No#44, Keshavarz Blvd, 141556117, Tehran, Iran.
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9
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Yoo H, Park K. Association between Phytochemical Index and Osteoporosis in Women: A Prospective Cohort Study in Korea. Nutrients 2023; 15:nu15071605. [PMID: 37049447 PMCID: PMC10097207 DOI: 10.3390/nu15071605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Osteoporosis is a prevalent issue among postmenopausal women, who have a higher incidence of the condition than men. This study aimed to examine the relationship between phytochemical-rich food intake and osteoporosis incidence in premenopausal and postmenopausal women. The data analyzed included 4600 women aged 40–69 who were free of osteoporosis at baseline, with dietary intake evaluated through a semi-quantitative food frequency questionnaire and osteoporosis prevalence determined using interviewer-administered questionnaires and bone mineral density tests. The phytochemical index (PI) was calculated to reflect the intake levels of phytochemical-rich foods. Postmenopausal women in the highest PI quartile had a 16% lower risk of osteoporosis (95% confidence interval (CI): 0.71 to 0.99, p for trend = 0.02) than those in the lowest quartile, while no significant association was observed among premenopausal women (hazard ratio: 0.98, 95% CI: 0.78 to 1.24, p for trend = 0.8). These findings suggest that consuming phytochemical-rich foods may have a protective effect against osteoporosis in postmenopausal women, offering valuable scientific insights. However, additional research is needed to validate these findings using biochemical data. Overall, this study highlights the potential of dietary interventions to reduce the risk of osteoporosis in postmenopausal women.
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Park K. The Role of Dietary Phytochemicals: Evidence from Epidemiological Studies. Nutrients 2023; 15:nu15061371. [PMID: 36986101 PMCID: PMC10054640 DOI: 10.3390/nu15061371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
Phytochemicals are biologically active substances derived from plants that play various roles in the human body [...]
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Affiliation(s)
- Kyong Park
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Republic of Korea
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11
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Acikgoz Pinar A, Yildiz E, Altundag K. Dietary Phytochemical Index and the Risk of Breast Cancer: A Case-Control Study. Nutr Cancer 2023; 75:482-487. [PMID: 36104945 DOI: 10.1080/01635581.2022.2122518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
High intakes of phytochemical-rich foods might have beneficial effects on reducing breast cancer risk. In this study, we assessed the association between the dietary phytochemical index (PI) and breast cancer risk in a sample of premenopausal Turkish women. This case-control study was conducted on 70 newly diagnosed breast cancer cases and matched 70 healthy controls. Dietary intake was assessed using a validated food frequency questionnaire and dietary phytochemical indexes were calculated with two different methods. The mean PI score of participants was 19.9 ± 9.52 and 23.0 ± 8.95 in cases and controls, respectively (p = 0.046). After adjusting for energy intake, the risk of breast cancer significantly increased by 29.5% in the third quartile as compared to the fourth quartile of dietary PI (OR = 0.295, 95%CI = 0.106-0.822). Higher dietary PI was negatively associated with breast cancer risk; therefore, dietary PI may be suggested as an important contributor to dietary intake for breast cancer.
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Affiliation(s)
| | - Emine Yildiz
- Department of Nutrition and Dietetics, Eastern Mediterranean University, Famagusta, North Cyprus
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Bahrampour N, Mirzababaei A, Hosseininasab D, Abaj F, Clark CCT, Mirzaei K. High intake of dietary phytochemical index may be related to reducing risk of diabetic nephropathy: a case-control study. BMC Nutr 2023; 9:14. [PMID: 36647176 PMCID: PMC9841724 DOI: 10.1186/s40795-023-00676-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE Diabetic nephropathy (DN) is involved in 40% of patients with type 2 diabetes, Phytochemical index (PI) foods are known as antioxidant and anti-inflammatory agents. Higher intake of phytochemicals can improve glucose tolerance, hypertension and complications of DN. This study sought to discern the relationship between dietary PI and DN. METHODS This was a case-control study which was conducted between 210 diabetic women. General characteristics, blood pressure, biochemical serum levels, and anthropometric measurements were evaluated. Physical activity and dietary intakes were assessed via short form of physical activity questionnaire and 147 items-validated food frequency questionnaires, respectively. Then, PI was calculated through method of McCarty and divided to 2 groups of lower and higher of median. Independent samples T tests were used to identify differences in quantitative variables. To investigate the relationship between dietary PI and risk of DN, logistic regression was used. The odds ratio (OR) of DN, and its 95% confidence interval (CI), in each groups of PI were shown. RESULTS The percentage of daily intake of energy from fruits and vegetables were higher than the other sources of phytochemical rich foods. Higher consumption of vitamin A was seen in higher group of PI among the control group, after adjusting for energy intake. In the higher adherence of median of dietary PI group, intake of fruits, vegetables, legumes, grains, and olives of controls were higher than cases. In addition, soy consumption was statistically different between lower and higher adherence of median of dietary PI among cases. There was an inverse relationship between dietary PI and risk of DN (OR = 0.44; 95% CI: 0.25-0.77; P = 0.04). After adjusting for potential confounders, the association remained significant, albeit with lower odds of having DN (OR = 0.15; 95% CI: 0.06-0.36; P < 0.001). CONCLUSION Finally, the present study found evidence indicating an inverse relationship between consumption of foods rich in phytochemicals and risk of DN in this sample.
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Affiliation(s)
- Niki Bahrampour
- grid.411463.50000 0001 0706 2472Department of Nutrition, Science and Research Branch, Islamic Azad University (SRBIAU), Tehran, Iran
| | - Atieh Mirzababaei
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box 14155-6117, Tehran, Iran
| | - Dorsa Hosseininasab
- grid.411463.50000 0001 0706 2472Department of Nutrition, Science and Research Branch, Islamic Azad University (SRBIAU), Tehran, Iran
| | - Faezeh Abaj
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box 14155-6117, Tehran, Iran
| | - Cain C. T. Clark
- grid.8096.70000000106754565Centre for Intelligent Healthcare, Coventry University, Coventry, CV1 5FB UK
| | - Khadijeh Mirzaei
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box 14155-6117, Tehran, Iran
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Craddock JC, Neale EP, Peoples GE, Probst YC. Examining dietary behaviours, diet quality, motives and supplementation use in physically active individuals following vegetarian-based eating patterns. NUTR BULL 2022; 47:473-487. [PMID: 36352440 PMCID: PMC10098725 DOI: 10.1111/nbu.12592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2022]
Abstract
The adoption of vegetarian-based dietary patterns among athletes has been gaining popularity. However, limited research examines the dietary behaviours within this group. Therefore, the aim of this study was to examine self-reported dietary behaviours in a cohort of physically active individuals following vegetarian-based dietary patterns, recruited via social media. A 52-item online survey was created with questions related to demographics, physical activity, eating patterns and supplementation use. An external link to the Australian Automated Self-Administered 24-h (ASA24-AU) recall was included to examine nutrient intakes. Dietary quality was assessed using the Alternate Healthy Eating Index-2010 (AHEI-2010) and the Dietary Phytochemical Index (DPI) tools. A total of 781 (84.8%) respondents completed the survey in 2018. Principal motives for adhering to a vegetarian-based dietary pattern included animal rights (86.5%), environmental concerns (75.4%), health reasons (69.6%) and improving physical performance (24.1%). Vitamin B12 was the most commonly reported supplement (58.1%) followed by protein powder (36.3%) and vitamin D (35.9%). A total of 133 respondents completed the ASA24-AU dietary recall with generally adequate nutrient intakes and a high-quality diet as assessed by the AHEI-2010 and DPI. A significant minority of physically active individuals following vegetarian-based diets do so with the aspiration of improving their exercise performance. Dietary quality was considered high in this group for recreational physical activity, although intakes of vitamin B12 and LC n-3 PUFA were low.
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Affiliation(s)
- Joel C Craddock
- School of Medical, Indigenous and Health Sciences, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia.,Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
| | - Elizabeth P Neale
- School of Medical, Indigenous and Health Sciences, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia
| | - Gregory E Peoples
- Graduate School of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia
| | - Yasmine C Probst
- School of Medical, Indigenous and Health Sciences, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia.,Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
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14
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Salehi-Sahlabadi A, Teymoori F, Mokhtari E, Taghiyar M, Hekmatdoost A, Mirmiran P. Dietary phytochemical index and the risk of non-alcoholic fatty liver disease: A case-control study among Iranian adults. Complement Ther Med 2022; 71:102881. [PMID: 36031025 DOI: 10.1016/j.ctim.2022.102881] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 08/18/2022] [Accepted: 08/24/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUNDS Dietary phytochemical index (DPI) is an inexpensive method for estimating the amounts of phytochemicals in foods. No study has investigated the association between DPI and non-alcoholic fatty liver disease (NAFLD). Our study aimed to compare DPI in patients with NAFLD and the control group. METHODS This is a case-control study of 250 subjects with NAFLD and 450 healthy subjects attending the Metabolic Liver Disease Research Center as a referral center affiliated to Isfahan University of Medical Sciences. DPI was calculated based on data collected from a 168-item validated food frequency questionnaire. Sociodemographic data, physical activity, and anthropometric measures such as body weight, height, and waist circumference were determined. RESULTS In the final adjusted model, the odds ratio (OR) of NAFLD across the DPI tertiles decreased significantly (OR = 0.55, 95 %CI = 0.31-0.95) (P-trend = 0.03). The highest vs. lowest tertiles of vegetable and olives PI were significantly associated with a lower risk of NAFLD (OR and 95 % CI = 0.26 (0.14-0.47); OR and 95 % CI = 0.51 (0.29-0.90), p for trend < 0.001, respectively), however, there was no significant relation between other PI components and NAFLD. CONCLUSION This case-control study suggested that a higher PI score is associated with a reduced chance of NAFLD after adjusting for confounding variables. In addition, the highest tertile of vegetable and olives PI was significantly associated with a lower risk of NAFLD.
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Affiliation(s)
- Ammar Salehi-Sahlabadi
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Farshad Teymoori
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran; Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Ebrahim Mokhtari
- Student Research Committee, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Maryam Taghiyar
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Science, Isfahan, Islamic Republic of Iran
| | - Azita Hekmatdoost
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology, Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran.
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Pourreza S, Mirzababaei A, Naeini F, Naghshi S, Mirzaei K. Association of dietary phytochemical index with metabolically unhealthy overweight/obesity phenotype among Iranian women: A cross-sectional study. Front Nutr 2022; 9:959341. [DOI: 10.3389/fnut.2022.959341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/03/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundPhytochemicals have been recently studied as adjuvants for the treatment of obesity. No study has investigated the association of phytochemical-rich foods with metabolically unhealthy overweight/obesity phenotype (MUOW/O). This study aimed to determine the association of dietary phytochemical index (DPI) with MUOW/O based on Karelis criteria among Iranian female adults.MethodsIn this cross-sectional study, a total of 228 overweight and obese women aged 18–48 years were included. Anthropometric measurements were evaluated for all participants. A validated 147-item Food Frequency Questionnaire (FFQ) was used for dietary assessment. DPI was calculated as [dietary energy derived from phytochemical-rich foods (kcal)/total daily energy intake (kcal)] × 100. Participants’ body composition and biochemical parameters of Karelis criteria [triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), insulin, and high-sensitivity C-reactive protein (hs-CRP)] were determined.ResultsThe mean age of the study participants was 36.69 ± 9.20, and the mean DPI score was 26.23 ± 9.48 among participants with MUOW/O phenotype. After controlling for potential confounders, women in the highest tertile of DPI had lower odds for MUOW/O phenotype [odds ratio (OR): 0.23, 95% confidence interval (CI): 0.07–0.68, P = 0.008] compared to the lowest tertile. Among the components of Karelis criteria, homeostatic model assessment for insulin resistance (HOMA-IR) was significantly associated with MUOW/O phenotype in the fully adjusted model (OR: 0.29, 95% CI: 0.10–0.79, P = 0.01).ConclusionWe found a significant association between DPI and MUOW/O phenotype in Iranian women. Prospective studies are needed to confirm these findings.
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Jo U, Park K. Phytochemical index and hypertension in Korean adults using data from the Korea National Health and Nutrition Examination Survey in 2008-2019. Eur J Clin Nutr 2022; 76:1594-1599. [PMID: 35701525 DOI: 10.1038/s41430-022-01155-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/OBJECTIVES Although previous in vivo and in vitro studies have reported the beneficial effects of phytochemical-rich food on cardiovascular health, limited information is available regarding its' health effect on the community-dwelling population. This is especially true in Korea. Here, we examined the cross-sectional association between phytochemical levels and hypertension in Korean adults. SUBJECTS/METHODS We analyzed data from 38,198 Koreans aged ≥30 years who participated in the Korea National Health and Nutrition Examination Survey (2008-2019) and met the study's inclusion criteria. The Korean version of the Phytochemical Index (PI) was computed based on 24 h recall data. Hypertension was defined based on the American College of Cardiology/American Heart Association definition in 2017. Multivariate logistic regression analysis was used to examine the association between PI and hypertension. RESULTS In the multivariable adjusted model, participants in the highest PI quintile had a significantly low prevalence of hypertension (Odd ratio, 0.86; 95% confidence interval, 0.79-0.95). A dose-response analysis confirmed the inverse linearity between PI and hypertension (p for nonlinearity = 0.2634). CONCLUSIONS Consumption of phytochemical-rich foods may lower the prevalence of hypertension. A large-scale, prospective cohort study is required to validate these findings.
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Affiliation(s)
- Unhui Jo
- Department of Food and Nutrition, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gueongbuk, 38541, Republic of Korea
| | - Kyong Park
- Department of Food and Nutrition, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gueongbuk, 38541, Republic of Korea.
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Hu MM, Chen JH, Zhang QQ, Song ZY, Shaukat H, Qin H. Sesamol counteracts on metabolic disorders of middle-aged alimentary obese mice through regulating skeletal muscle glucose and lipid metabolism. Food Nutr Res 2022; 66:8231. [PMID: 35382382 PMCID: PMC8941404 DOI: 10.29219/fnr.v66.8231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/08/2021] [Accepted: 02/09/2022] [Indexed: 12/30/2022] Open
Abstract
Background Globally, obesity is a significant public problem, especially when aging. Sesamol, a phenolic lignan present in sesame seeds, might have a positive effect on high-fat diet (HFD)-induced obesity associated with aging. Objective The purpose of current research study was to explore salutary effects and mechanisms of sesamol in treating alimentary obesity and associated metabolic syndrome in middle-aged mice. Methods C57BL/6J mice aged 4–6 weeks and 6–8 months were assigned to the young normal diet group, middle-aged normal diet group, middle-aged HFD group, and middle-aged HFD + sesamol group. At the end of experiment, glucose tolerance test and insulin tolerance test were performed; the levels of lipids and oxidative stress-related factors in the serum and skeletal muscle were detected using chemistry reagent kits; lipid accumulation in skeletal muscle was observed by oil red O staining; the expressions of muscular glucose and lipid metabolism associated proteins were measured by Western blotting. Results Sesamol decreased the body weight and alleviated obesity-associated metabolism syndrome in middle-aged mice, such as glucose intolerance, insulin resistance, dyslipidemia, and oxidative stress. Moreover, muscular metabolic disorders were attenuated after treatment with sesamol. It increased the expression of glucose transporter type-4 and down-regulated the protein levels of pyruvate dehydrogenase kinase isozyme 4, implying the increase of glucose uptake and oxidation. Meanwhile, sesamol decreased the expression of sterol regulatory element binding protein 1c and up-regulated the phosphorylation of hormone-sensitive lipase and the level of carnitine palmityl transferase 1α, which led to the declined lipogenesis and the increased lipolysis and lipid oxidation. In addition, the SIRT1/AMPK signaling pathway was triggered by sesamol, from which it is understood how sesamol enhances glucose and lipid metabolism. Conclusions Sesamol counteracts on metabolic disorders of middle-aged alimentary obese mice through regulating skeletal muscle glucose and lipid metabolism, which might be associated with the stimulation of the SIRT1/AMPK pathway.
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Affiliation(s)
- Min-Min Hu
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
| | - Ji-Hua Chen
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
| | - Quan-Quan Zhang
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
| | - Zi-Yu Song
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
| | - Horia Shaukat
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
| | - Hong Qin
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha, China
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Wei C, Liu L, Liu R, Dai W, Cui W, Li D. Association between the Phytochemical Index and Overweight/Obesity: A Meta-Analysis. Nutrients 2022; 14:nu14071429. [PMID: 35406041 PMCID: PMC9002681 DOI: 10.3390/nu14071429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
Some studies suggest that a higher phytochemical index (PI) is associated with a lower risk of overweight/obesity. This meta-analysis is performed to summarize published studies on the relationship of PI and the risk of overweight/obesity. We searched on PubMed, Cochrane Library and Web of Science from the inception dates to February 2022. The random-effect model was used based on heterogeneity. Meta-regression was used to explore potential sources of between-study heterogeneity. Publication bias was evaluated using Begg’s and Egger’s tests. The dose–response relationship was assessed using a restricted cubic spline model. Nine studies were included in the meta-analysis, with a total of 100,753 participants. The meta-analysis showed that the phytochemical index was associated with a decreased risk of overweight/obesity. The pooled OR (95% CI) was 0.81 (0.74–0.90). The findings from dose–response analysis showed a nonlinear association between the phytochemical index and the risk of overweight/obesity. The results of the meta-regression showed that gender and area were significant covariates influencing the heterogeneity between studies. There was no publication bias in the meta-analysis of this study. In conclusion, although this meta-analysis indicates that a high phytochemical index is associated with a reduced risk of overweight/obesity, all the studies included in this meta-analysis were cross-sectional studies with high heterogeneity. As such, more data from randomized controlled trials are required to confirm the efficacy of PI in evaluating the risk of overweight/obesity.
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Affiliation(s)
- Chaojie Wei
- Department of Immunology, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun 130021, China; (C.W.); (L.L.); (R.L.)
| | - Liping Liu
- Department of Immunology, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun 130021, China; (C.W.); (L.L.); (R.L.)
| | - Renli Liu
- Department of Immunology, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun 130021, China; (C.W.); (L.L.); (R.L.)
| | - Wenwen Dai
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, 1163 Xinmin Avenue, Changchun 130021, China;
| | - Weiwei Cui
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, 1163 Xinmin Avenue, Changchun 130021, China;
- Correspondence: (W.C.); (D.L.); Tel.: +86-431-85619455 (W.C.); +86-431-85619476 (D.L.)
| | - Dong Li
- Department of Immunology, College of Basic Medical Sciences, Jilin University, 126 Xinmin Avenue, Changchun 130021, China; (C.W.); (L.L.); (R.L.)
- Correspondence: (W.C.); (D.L.); Tel.: +86-431-85619455 (W.C.); +86-431-85619476 (D.L.)
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Association between Phytochemical Index and Inflammation in Korean Adults. Antioxidants (Basel) 2022; 11:antiox11020348. [PMID: 35204229 PMCID: PMC8868203 DOI: 10.3390/antiox11020348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 01/08/2023] Open
Abstract
While the relationship between phytochemicals and inflammation has been confirmed by in vivo or in vitro studies, large-scale epidemiological studies comprehensively analyzing phytochemical-rich food groups remain scarce. Therefore, we evaluated the association between the phytochemical index (PI) and the inflammation levels in Korean adults. The data were derived from the 2015–2018 Korea National Health and Nutrition Examination Survey, and a total of 18,699 participants were analyzed. High-sensitivity C-reactive protein (hs-CRP) levels >3.0 mg/L and white blood cell (WBC) counts >10 × 103/μL were defined as “elevated.” The PI was calculated based on eight food groups using a 24-h dietary recall. The odds ratio (OR) and confidence interval (CI) for elevated hs-CRP levels and WBC counts, according to the PI quintile, were calculated using the multivariable logistic regression analysis. Participants in the higher PI group had lower means of hs-CRP levels and WBC counts than those in the lower PI group (all p for trend <0.001). In fully adjusted logistic regression models, elevated hs-CRP levels and WBC counts in the highest PI group were lower by 40% (OR: 0.61, 95% CI: 0.49–0.76) and 34% (OR: 0.66, CI: 0.47–0.93), respectively. Conclusions: A high consumption of phytochemical-rich foods is associated with lower inflammation. This suggests that adopting phytochemical-rich dietary patterns may be an effective approach for reducing inflammation.
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Tel Adıgüzel K, Yurdakul FG, Kürklü NS, Yaşar E, Bodur H. Relationship between diet, oxidative stress, and inflammation in ankylosing spondylitis. Arch Rheumatol 2021; 37:1-10. [PMID: 35949875 PMCID: PMC9326390 DOI: 10.46497/archrheumatol.2022.9015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/06/2021] [Indexed: 11/03/2022] Open
Abstract
Objectives: This study aims to investigate the relationship between disease activity, dietary phytochemical index (DPI), and serum total oxidant status (TOS) and total antioxidant status (TAS) in patients with ankylosing spondylitis (AS).
Patients and methods: Between August 2020 and January 2021, a total of 37 patients (23 males, 14 females; mean age: 39.3±9.4 years; range, 21 to 61 years) with AS and 36 age-, sex-, and body mass index-matched healthy individuals (24 males, 12 females; mean age: 37.9±8.9 years; range, 20 to 60 years) were included. Serum TAS (μmoLTroloxEq/L) and TOS (μmoL H2O2Eq/L) measurements were performed and the oxidative stress index (OSI) was calculated. Dietary evaluation was made from a one-day dietary record and DPI was calculated.
Results: Serum TAS level in AS patients was significantly lower than the healthy group (p=0.003). Serum TOS level was similar in both groups. The OSI of patients was significantly higher than the controls (p=0.035). The mean DPI, polyunsaturated fatty acid, n-3 fatty acid, and vitamin C intake of patients were significantly lower than controls (p=0.042, p=0.033, and p=0.022, respectively). A moderate positive correlation was found between the TAS level and DPI of the control group (r=0.352, p=0.035). According to medications, no significant difference was seen between the groups in terms of patients’ characteristics, DPI, and laboratory tests and there was no correlation between DPI, TAS, TOS, and OSI.
Conclusion: Lower DPI and lower n-3 fatty acid and vitamin C intake in patient group demonstrated that patients with AS should pay more attention to their diet to increase serum antioxidant status.
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Affiliation(s)
- Kübra Tel Adıgüzel
- Department of Nutrition and Dietetics, Gülhane Faculty of Health Sciences, University of Health Sciences Turkey, Ankara, Turkey
| | - Fatma Gül Yurdakul
- Department of Physical Medicine and Rehabilitation, Ankara City Hospital, Physical Therapy and Rehabilitation Hospital, Ankara, Turkey
| | - Nilgün Seremet Kürklü
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Akdeniz University, Antalya, Turkey
| | - Evren Yaşar
- Department of Physical Medicine and Rehabilitation, Gülhane School of Medicine, University of Health Sciences Turkey, Ankara,Turkey
| | - Hatice Bodur
- Department of Physical Medicine and Rehabilitation, Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
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Amiot MJ, Latgé C, Plumey L, Raynal S. Intake Estimation of Phytochemicals in a French Well-Balanced Diet. Nutrients 2021; 13:nu13103628. [PMID: 34684628 PMCID: PMC8539512 DOI: 10.3390/nu13103628] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/26/2022] Open
Abstract
Phytochemicals contribute to the health benefits of plant-rich diets, notably through their antioxidant and anti-inflammatory effects. However, recommended daily amounts of the main dietary phytochemicals remain undetermined. We aimed to estimate the amounts of phytochemicals in a well-balanced diet. A modelled diet was created, containing dietary reference intakes for adults in France. Two one-week menus (summer and winter) were devised to reflect typical intakes of plant-based foods. Existing databases were used to estimate daily phytochemical content for seven phytochemical families: phenolic acids, flavonoids (except anthocyanins), anthocyanins, tannins, organosulfur compounds, carotenoids, and caffeine. The summer and winter menus provided 1607 and 1441 mg/day, respectively, of total polyphenols (phenolic acids, flavonoids, anthocyanins, and tannins), the difference being driven by reduced anthocyanin intake in winter. Phenolic acids, flavonoids (including anthocyanins), and tannins accounted for approximately 50%, 25%, and 25% of total polyphenols, respectively. Dietary carotenoid and organosulfur compound content was estimated to be approximately 17 and 70 mg/day, respectively, in both seasons. Finally, both menus provided approximately 110 mg/day of caffeine, exclusively from tea and coffee. Our work supports ongoing efforts to define phytochemical insufficiency states that may occur in individuals with unbalanced diets and related disease risk factors.
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Affiliation(s)
- Marie-Josèphe Amiot
- INRAE, MoISA, University of Montpellier, CIHEAM-IAMM, CIRAD, Institut Agro-Montpellier SupAgro, IRD, Campus La Gaillarde, 2 Place Pierre Viala, 34000 Montpellier, France
- Correspondence: ; Tel.: +33-(0)4-99-61-22-16
| | - Christian Latgé
- Pierre Fabre Laboratories, Langlade-3 Avenue Hubert Curien-BP 13 562, CEDEX 1, 31035 Toulouse, France;
| | - Laurence Plumey
- NUTRITION CO&CO, 11 Avenue des Vignes, 92210 St Cloud, France;
| | - Sylvie Raynal
- Naturactive, Pierre Fabre Laboratories, 29 Avenue du Sidobre, 81106 Castres, France;
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Vasmehjani AA, Darabi Z, Nadjarzadeh A, Mirzaei M, Hosseinzadeh M. The relation between dietary phytochemical index and metabolic syndrome and its components in a large sample of Iranian adults: a population-based study. BMC Public Health 2021; 21:1587. [PMID: 34429094 PMCID: PMC8383421 DOI: 10.1186/s12889-021-11590-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 08/03/2021] [Indexed: 01/14/2023] Open
Abstract
Background Despite the protective effects of foods being rich in phytochemicals against chronic diseases, this issue is still poorly understood. The aim of this study was to investigate the association between Dietary Phytochemical Index (DPI) and metabolic syndrome (MetS) and its components. Methods This cross-sectional study focused on adults aged between 20 and 70years. The dietary intake was assessed using a validated and reliable food frequency questionnaire. DPI was calculated based on dietary energy, derived from phytochemical-rich food sources (kcal) per total daily energy intake (kcal). The odds ratio of MetS and its components were assessed across DPI quartiles by logistic regression models. Results After adjustment for all potential confounders, the risk of MetS (OR: 0.63, 95% CI = 0.41–0.96) and elevated blood pressure (OR: 0.62, 95% CI = 0.40–0.96) in the second category of DPI decreased significantly as compared to that in the first category. Subjects in the second and fourth quartiles of DPI with adjusting for age, sex and total energy intake revealed 30 and 25% lower risk of abdominal obesity, respectively. After full adjustment for confounders, the analysis stratified by sex showed women in the highest quartile of DPI had 59% lower risk of MetS (OR: 0.41, 95% CI = 0.22–0.76) as compared to those in the lowest quartile of DPI. Conclusions Greater adherence to phytochemical-rich diet could reduce odds of MetS and some components, especially in women. Further studies with intervention approaches are recommended.
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Affiliation(s)
- Azam Ahmadi Vasmehjani
- Nutrition and Food Security Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Nutrition, School of Public Health, Shahid Sadughi University of Medical Sciences, Yazd, Iran
| | - Zahra Darabi
- Nutrition and Food Security Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Nutrition, School of Public Health, Shahid Sadughi University of Medical Sciences, Yazd, Iran
| | - Azadeh Nadjarzadeh
- Nutrition and Food Security Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Nutrition, School of Public Health, Shahid Sadughi University of Medical Sciences, Yazd, Iran
| | - Masoud Mirzaei
- Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahdieh Hosseinzadeh
- Nutrition and Food Security Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. .,Department of Nutrition, School of Public Health, Shahid Sadughi University of Medical Sciences, Yazd, Iran.
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23
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Hira T, Trakooncharoenvit A, Taguchi H, Hara H. Improvement of Glucose Tolerance by Food Factors Having Glucagon-Like Peptide-1 Releasing Activity. Int J Mol Sci 2021; 22:6623. [PMID: 34205659 PMCID: PMC8235588 DOI: 10.3390/ijms22126623] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 12/14/2022] Open
Abstract
Glucagon-like peptide-1 (GLP-1) is a gastrointestinal hormone released from enteroendocrine L cells in response to meal ingestion. GLP-1 receptor agonists and GLP-1 enhancers have been clinically employed to treat diabetes owing to their glucose-dependent insulin-releasing activity. The release of GLP-1 is primarily stimulated by macronutrients such as glucose and fatty acids, which are nutritionally indispensable; however, excessive intake of sugar and fat is responsible for the development of obesity and diabetes. Therefore, GLP-1 releasing food factors, such as dietary peptides and non-nutrients, are deemed desirable for improving glucose tolerance. Human and animal studies have revealed that dietary proteins/peptides have a potent effect on stimulating GLP-1 secretion. Studies in enteroendocrine cell models have shown that dietary peptides, amino acids, and phytochemicals, such as quercetin, can directly stimulate GLP-1 secretion. In our animal experiments, these food factors improved glucose metabolism and increased GLP-1 secretion. Furthermore, some dietary peptides not only stimulated GLP-1 secretion but also reduced plasma peptidase activity, which is responsible for GLP-1 inactivation. Herein, we review the relationship between GLP-1 and food factors, especially dietary peptides and flavonoids. Accordingly, utilization of food factors with GLP-1-releasing/enhancing activity is a promising strategy for preventing and treating obesity and diabetes.
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Affiliation(s)
- Tohru Hira
- Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan;
- School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan;
| | | | - Hayate Taguchi
- School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan;
| | - Hiroshi Hara
- Department of Food Science and Human Nutrition, Fuji Women’s University, Ishikari-shi 061-320, Japan;
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24
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Dehghani Firouzabadi F, Jayedi A, Asgari E, Farazi M, Noruzi Z, Djafarian K, Shab-Bidar S. The Association of Dietary Phytochemical Index with Metabolic Syndrome in Adults. Clin Nutr Res 2021; 10:161-171. [PMID: 33987142 PMCID: PMC8093085 DOI: 10.7762/cnr.2021.10.2.161] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 01/12/2023] Open
Abstract
In this study, we assessed the association between the dietary phytochemical index (DPI) and metabolic syndrome (MetS) among adults in a cross-sectional study. We enrolled 850 adult men and women aged 18–65 years who had been referred to health centers in Tehran, Iran. The DPI was calculated based on 8 components including fruits, vegetables, legumes, whole grains, soy products, nuts, seeds, olive, and olive oil. The odds ratio (OR) and 95% confidence interval (CI) of the MetS across quartiles of the DPI were calculated using the logistic regression analysis, adjusting for age, energy intake, marital status, education status, occupation, smoking status, physical activity, and body mass index. The mean age of participants was 44.7 ± 10.7, of whom 69% were women. The prevalence of MetS was 30.5%. The mean score of DPI in women and men was 36.2 ± 26.8 and 33.7 ± 24.7, respectively. There was no significant association between DPI and odds of MetS in men (ORfourth vs. first quartile,1.57; 95% CI, 0.64–3.84) and women (ORfourth vs. first quartile, 0.86; 95% CI, 0.50–1.49) in the fully adjusted model. There was an inverse association between DPI and increased risk of central obesity in women (ORfourth vs. first quartile, 0.54; 95% CI, 0.29–1.00; p trend = 0.03). There was no significant association between DPI and other components of the MetS in men and women. Finally, we observed no significant association between the DPI and the odds of MetS. However, the finding suggests that having a phytochemical-rich diet can be inversely associated with abdominal obesity.
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Affiliation(s)
- Fatemeh Dehghani Firouzabadi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Ahmad Jayedi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Elaheh Asgari
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Mena Farazi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Zahra Noruzi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Kurosh Djafarian
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
| | - Sakineh Shab-Bidar
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran 14167-53955, Iran
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25
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Ham D, Joung H. Understanding the Associations between Dietary Antioxidants and Obesity. J Obes Metab Syndr 2020; 29:163-165. [PMID: 32868488 PMCID: PMC7539340 DOI: 10.7570/jomes20070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/06/2020] [Accepted: 07/28/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- Dongwoo Ham
- Institute of Health and Environment, Seoul National University, Seoul, Korea
| | - Hyojee Joung
- Institute of Health and Environment, Seoul National University, Seoul, Korea.,Department of Public Health, Graduate School of Public Health, Seoul National University, Seoul, Korea
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26
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Association between the Phytochemical Index and Lower Prevalence of Obesity/Abdominal Obesity in Korean Adults. Nutrients 2020; 12:nu12082312. [PMID: 32752111 PMCID: PMC7468740 DOI: 10.3390/nu12082312] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 11/17/2022] Open
Abstract
The relatively high levels of vegetable consumption have highlighted the need to examine the association between phytochemical intake and disease prevention. We examined the association between the phytochemical index (PI) and obesity/abdominal obesity among Korean adults. We analyzed the data of 57,940 adults aged ≥ 19 years obtained from the Korea National Health and Nutrition Examination Survey. We calculated PI using the 24 h recall data, and multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression models. Dose–response patterns were analyzed using restricted cubic spline regression. After multivariable adjustment, a higher PI was found to be associated with a lower prevalence of obesity and abdominal obesity; this association was notable in women (obesity, OR: 0.86, CI: 0.78–0.94, p for trend = 0.01; abdominal obesity, OR: 0.81, CI: 0.73–0.90, p for trend < 0.001). Spline regression showed linearity of the associations between PI and obesity/abdominal obesity in women. Our findings suggested that maintaining a phytochemical-rich diet may help to prevent obesity and abdominal obesity, especially in women, as an increased PI corresponded to lower prevalence of obesity. This study, using evidence-based data, highlighted the importance of consuming plant-derived foods to prevent obesity.
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