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Shi S, Dong Y, Wang S, Du X, Feng N, Xu L, Zhong VW. Associations of Dietary Cholesterol Consumption With Incident Diabetes and Cardiovascular Disease: The Role of Genetic Variability in Cholesterol Absorption and Disease Predisposition. Diabetes Care 2024; 47:1092-1098. [PMID: 38593324 DOI: 10.2337/dc23-2336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/29/2024] [Indexed: 04/11/2024]
Abstract
OBJECTIVE Whether genetic susceptibility to disease and dietary cholesterol (DC) absorption contribute to inconsistent associations of DC consumption with diabetes and cardiovascular disease (CVD) remains unclear. RESEARCH DESIGN AND METHODS DC consumption was assessed by repeated 24-h dietary recalls in the UK Biobank. A polygenetic risk score (PRS) for DC absorption was constructed using genetic variants in the Niemann-Pick C1-Like 1 and ATP Binding Cassettes G5 and G8 genes. PRSs for diabetes, coronary artery disease, and stroke were also created. The associations of DC consumption with incident diabetes (n = 96,826) and CVD (n = 94,536) in the overall sample and by PRS subgroups were evaluated using adjusted Cox models. RESULTS Each additional 300 mg/day of DC consumption was associated with incident diabetes (hazard ratio [HR], 1.17 [95% CI, 1.07-1.27]) and CVD (HR, 1.09 [95% CI, 1.03-1.17]), but further adjusting for BMI nullified these associations (HR for diabetes, 0.99 [95% CI, 0.90-1.09]; HR for CVD, 1.04 [95% CI, 0.98-1.12]). Genetic susceptibility to the diseases did not modify these associations (P for interaction ≥0.06). The DC-CVD association appeared to be stronger in people with greater genetic susceptibility to cholesterol absorption assessed by the non-high-density lipoprotein cholesterol-related PRS (P for interaction = 0.04), but the stratum-level association estimates were not statistically significant. CONCLUSIONS DC consumption was not associated with incident diabetes and CVD, after adjusting for BMI, in the overall sample and in subgroups stratified by genetic predisposition to cholesterol absorption and the diseases. Nevertheless, whether genetic predisposition to cholesterol absorption modifies the DC-CVD association requires further investigation.
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Affiliation(s)
- Shuxiao Shi
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Dong
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sujing Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xihao Du
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Nannan Feng
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lan Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Victor W Zhong
- Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Zhang L, Gong J, Xi L, Yang B, Hao Y, Zhang H, Feng Z, Li Q. Positive effects of rutin on egg quality, lipid peroxidation and metabolism in post-peak laying hens. Front Vet Sci 2024; 11:1426377. [PMID: 38872794 PMCID: PMC11169854 DOI: 10.3389/fvets.2024.1426377] [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: 05/01/2024] [Accepted: 05/23/2024] [Indexed: 06/15/2024] Open
Abstract
Excessive fat deposition due to impaired fat metabolism in chickens is a major problem in the poultry industry. Nutritional interventions are effective solutions, but current options are limited. A safe phytochemical, rutin, has shown positive effects in animals, but its effect on lipid metabolism in poultry remains unknown. Hence, this study is to investigate the effects of rutin on egg quality, serum biochemistry, fat deposition, lipid peroxidation and hepatic lipid metabolism in post-peak laying hens. A total of 360 Taihang laying hens (49-week-old) were randomly divided into five groups and fed a basal diet (control group, 0%) and a basal diet supplemented with 300 (0.03%), 600 (0.06%), 900 (0.09%), and 1,200 (0.12%) mg rutin/kg feed, respectively. The results showed that eggshell strength was significantly (p < 0.05) higher in the dietary rutin groups, whereas yolk percentage (p < 0.05), total cholesterol (TC) (p < 0.01) and yolk fat ratio (p < 0.01) decreased linearly (p < 0.05) in the dietary rutin groups. Importantly, dietary rutin reduced serum triglyceride (TG) and TC levels, decreased abdominal lipid deposition and liver index (p < 0.05), and which concomitantly decreased hepatic lipid (TG, TC, and free fatty acid) accumulation (p < 0.05). An increase (p < 0.05) in total antioxidant capacity and superoxide dismutase activity and a decrease (p < 0.05) in malondialdehyde levels were also found. At the same time, the activities of hepatic lipase, acetyl-CoA carboxylase and malic enzyme in the liver were decreased (p < 0.05). Dietary rutin also increased (p < 0.05) the expression of fatty acid oxidation-related genes (carnitine palmitoyl transferase 1, peroxisome proliferator-activated receptor α, farnesoid X receptor). Additionally, it decreased fatty acid synthesis genes (sterol regulatory element binding protein-1c, acetyl-CoA carboxylase α, stearoyl-CoA desaturase 1) (p < 0.05). In conclusion, the addition of rutin (0.06-0.12%) to the diet improved the fat metabolism and increased liver antioxidant capacity in post-peak laying hens, and these positive changes improved egg quality to some extent.
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Affiliation(s)
- Leizheng Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Jiangang Gong
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Lin Xi
- Department of Animal Science, North Carolina State University, Raleigh, NC, United States
| | - Bowen Yang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Yanshuang Hao
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Haihua Zhang
- College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, China
| | - Zhihua Feng
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Qian Li
- Hebei Institute of Animal Husbandry and Veterinary Medicine, Baoding, China
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Li Y, Pei H, Zhou C, Lou Y. Dietary cholesterol consumption and incidence of type 2 diabetes mellitus: A dose-response meta-analysis of prospective cohort studies. Nutr Metab Cardiovasc Dis 2023; 33:2-10. [PMID: 36411220 DOI: 10.1016/j.numecd.2022.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND AIM The purpose of this meta-analysis was to evaluate the dose-response relationship between dietary cholesterol (DC) consumption and the incidence of type 2 diabetes mellitus (T2DM). METHODS AND RESULTS Prospective studies with the endpoint of T2DM were included. The Random-effect model weighted by inverse variance was used. Meta-regression and subgroup analyses were conducted to explore the potential sources of heterogeneity by specified study characteristics. Restricted cubic splines regression models were used to estimate the dose-response relationship. 11 prospective studies comprising of 355 230 subjects were included. Compared to lowest DC consumption, highest DC consumption was associated with an increased risk of T2DM (RR 1.15, 95% CI 1.03 to 1.28, P = 0.012; chi-squared = 31.41, I-squared 58.6%, P heterogeneity = 0.003). Subgroup analyses have shown that this positive association was more evident in western countries than in eastern countries (RR 1.19, 95% CI 1.06 to 1.36 VS 1.34, 95% CI 0.84 to 1.29; P subgroup difference = 0.02). For 100 mg/d increment in DC intake, the pooled RR was 1.05, (95% CI 1.04 to 1.07, Plinearity = 0.000, Pnonlinearity = 0.02), 1.06 (95% CI 1.04 to 1.07, Plinearity=0.000), and 1.01 (95% CI 0.98 to 1.05, Plinearity = 0.525) for the incidence of T2DM, in western and eastern countries, respectively. CONCLUSIONS Our study suggests that there is a positive dose-response association between DC consumption and the incidence of T2DM, especially in western countries. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020216318.
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Affiliation(s)
- Yuehua Li
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Hanjun Pei
- Department of Cardiology, The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China
| | - Chenghui Zhou
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Ying Lou
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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Mesas AE, Garrido-Miguel M, Fernández-Rodríguez R, Fernández-Franco S, Lugones-Sánchez C, García-Ortiz L, Martínez-Vizcaíno V. The association of egg consumption with blood pressure levels and glycated hemoglobin in Spanish adults according to body mass index. Sci Rep 2022; 12:17465. [PMID: 36261679 PMCID: PMC9582218 DOI: 10.1038/s41598-022-21772-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/30/2022] [Indexed: 01/12/2023] Open
Abstract
The objective of this study was to evaluate the association of egg consumption with blood pressure (BP) and glycated hemoglobin (HbA1c). In addition, it was assessed whether this association changes according to body weight status. This cross-sectional study is based on multicenter data from Spanish adult participants in the EVIDENT II trial. Egg consumption was assessed with a Food Frequency Questionnaire, and data on BP and HbA1c were collected using standardized procedures. Linear regression and ANCOVA models adjusted for the main confounders were performed. The analyses were stratified by body weight status. A total of 668 participants were analyzed (mean age 52.4 ± 11.8 years, 62.3% women). Compared with lower consumption, higher egg consumption was associated with lower systolic (ß = - 6.15 ± 1.74; p-for-trend = 0.017), diastolic (ß = - 4.41 ± 1.03; p-for-trend = 0.002), and mean arterial pressure (ß = - 4.99 ± 1.17; p-for-trend = 0.003) and with lower HbA1c (ß = - 0.19 ± 0.06; p-for-trend = 0.019) levels. These associations lost statistical significance in the adjusted analyses. The results did not vary by body weight status. In conclusion, consumption of up to 1 egg per day is not associated with BP or HbA1c, even in overweight or obese individuals. Our findings suggested that this frequency of egg consumption is safe as part of a healthy diet and lifestyle for cardiometabolic risk.
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Affiliation(s)
- Arthur Eumann Mesas
- grid.8048.40000 0001 2194 2329Health and Social Research Center, Universidad de Castilla-La Mancha, 16071 Cuenca, Spain ,grid.411400.00000 0001 2193 3537Universidade Estadual de Londrina, Londrina, Paraná 86057-970 Brazil
| | - Miriam Garrido-Miguel
- grid.8048.40000 0001 2194 2329Health and Social Research Center, Universidad de Castilla-La Mancha, 16071 Cuenca, Spain ,grid.8048.40000 0001 2194 2329Faculty of Nursing, Universidad de Castilla-La Mancha, C/ Campus Universitario , s/n (Edificio Benjamín Palencia), 02006 Albacete, Spain
| | - Rubén Fernández-Rodríguez
- grid.8048.40000 0001 2194 2329Health and Social Research Center, Universidad de Castilla-La Mancha, 16071 Cuenca, Spain
| | | | - Cristina Lugones-Sánchez
- grid.452531.4Unidad de Investigación en Atención Primaria de Salamanca (APISAL), Gerencia de Atención Primaria de Salamanca, Gerencia Regional de Salud de Castilla y León (SACyL), Instituto de Investigación Biomédica de Salamanca (IBSAL), 37005 Salamanca, Spain
| | - Luis García-Ortiz
- grid.452531.4Unidad de Investigación en Atención Primaria de Salamanca (APISAL), Gerencia de Atención Primaria de Salamanca, Gerencia Regional de Salud de Castilla y León (SACyL), Instituto de Investigación Biomédica de Salamanca (IBSAL), 37005 Salamanca, Spain ,grid.11762.330000 0001 2180 1817Departamento de Ciencias Biomédicas y del Diagnóstico, Universidad de Salamanca, 37007 Salamanca, Spain ,RedIAPP: Red Española de Investigación Para Actividades Preventivas y Promoción de la Salud en Atención Primaria, Barcelona, Spain
| | - Vicente Martínez-Vizcaíno
- grid.8048.40000 0001 2194 2329Health and Social Research Center, Universidad de Castilla-La Mancha, 16071 Cuenca, Spain ,RedIAPP: Red Española de Investigación Para Actividades Preventivas y Promoción de la Salud en Atención Primaria, Barcelona, Spain ,grid.441837.d0000 0001 0765 9762Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, 1101 Talca, Chile
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Relationship between dietary niacin intake and diabetes mellitus in the National Health and Nutrition Examination Survey (NHANES) 2003-2018. Eat Weight Disord 2022; 27:2425-2434. [PMID: 35230671 DOI: 10.1007/s40519-021-01347-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/13/2021] [Indexed: 10/19/2022] Open
Abstract
PURPOSES Previous studies show inconsistent associations between niacin supplementation and diabetes mellitus (DM) in high-risk population, but little is known about the relationship between dietary intake of niacin and DM in the generation population. Our study aimed to explore the associations of dietary niacin intake with the risk of DM in the United States (US) adult population. METHODS These data were derived from the National Health and Nutrition Examination Survey (NHANES) 2003-2018 of 35,606 individuals aged 20 years or older. Niacin intake and food sources were measured by two 24-h dietary recall interviews. The diagnosis of DM was established according to the American Diabetes Association (ADA) criteria. Binary logistic regression and restricted cubic spline models were applied to evaluate the association of dietary niacin intake and DM. RESULTS Among the 35,606 individuals, the prevalence of DM was 11.47%. The full-adjusted odds ratio(aOR) of DM was 1.27(95%CI 1.06-1.52) for quartile (Q) 4 v. Q1 of dietary niacin intake. In the dose-response analysis, the shape of the association of niacin intake with the risk of DM was approximately J-shaped (non-linear, p < 0.05). Energy-adjusted niacin of 26.08 mg/day was the optimal cut-off value for predicting DM. CONCLUSIONS High dietary niacin intake was positively associated with DM among US adults. LEVEL OF EVIDENCE Level V: Opinions of authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.
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Zhang B, Wang Z, Huang C, Wang D, Chang D, Shi X, Chen Y, Chen H. Positive effects of Mulberry leaf extract on egg quality, lipid metabolism, serum biochemistry, and antioxidant indices of laying hens. Front Vet Sci 2022; 9:1005643. [PMID: 36187805 PMCID: PMC9523877 DOI: 10.3389/fvets.2022.1005643] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
Plant extracts are becoming a hot topic of research by animal husbandry practitioners following the implementation of a global policy to restrict antibiotic use in animal production. Mulberry leaf extract has received considerable attention as a new plant extract. Mulberry leaf polysaccharides and flavonoids are its main constituents, and these substances possess immunoregulatory, hypoglycemic, antioxidant, and anticoagulant properties. It is however less common to use them in poultry production. Therefore, we investigated the effects of adding MLE to the diet of laying hens on egg quality, lipid metabolism, serum biochemistry, and antioxidant indices in this study. A total of 288 Lohmann Silber layers, aged 38 weeks, were randomly assigned to four groups (six replicates of 12 hens each). Hens were fed a basal diet supplemented with 0 (control diet), 0.4, 0.8, or 1.2% MLE for 56 d. Results showed that the addition of 0.4–1.2% MLE to the diet improved aspartate transaminase (AST) activity in the serum of laying hens, reduced low-density lipoprotein (LDL-C) content in the serum, and significantly decreased yolk triglyceride (TG) and total cholesterol (TC) contents (P < 0.05). No adverse effects were observed on production performance (P > 0.10). MLE (0.4 and 1.2%) significantly reduced the TG and TC levels in the liver (P < 0.05). MLE (0.8 and 1.2%) significantly increased glutathione peroxidase (GSH-Px) activity in the serum, decreased alanine transaminase (ALT) activity, TG and TC content in the serum, and improved egg yolk color (P < 0.05). MLE (1.2%) significantly increased high-density lipoprotein (HDL-C) content and superoxide dismutase (SOD) activity in the serum and enhanced eggshell strength (P < 0.05). The liver-related lipid metabolism gene assay revealed that the relative mRNA expression of PPARα and SIRT1 in the liver was significantly upregulated and that of FASN and PPARγ was significantly decreased after the addition of MLE. In contrast, the relative mRNA expression of SREBP-1c in the liver dramatically decreased after the addition of 0.8 and 1.2% MLE (P < 0.05). The addition of MLE to the diet improved egg quality and the economic value of hens by increasing antioxidant capacity and lipid metabolism. The most appropriate amount of MLE to be added to the diet of laying hens was 0.8%. Our study provides a theoretical reference for the application of MLE in egg production and to promote the healthy and sustainable development of the livestock and poultry industry under the background of antibiotic prohibition.
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Affiliation(s)
- Bo Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
- Agricultural and Animal Husbandry Technology Extension Station in Tong Town, Shaanxi Province, Yulin, China
| | - Zeben Wang
- College of Management Science and Engineering, Hebei University of Economics and Business, Shijiazhuang, China
| | - Chenxuan Huang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Dehe Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Dongmei Chang
- Zhengding County Mulberry Industry Application Research Institute, Shijiazhuang, China
| | - Xiaowei Shi
- Zhengding County Mulberry Industry Application Research Institute, Shijiazhuang, China
| | - Yifan Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
- *Correspondence: Yifan Chen
| | - Hui Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
- Hui Chen
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Greenberg JA, Jiang X, Tinker LF, Snetselaar LG, Saquib N, Shadyab AH. Eggs, dietary cholesterol, choline, betaine, and diabetes risk in the Women's Health Initiative: a prospective analysis. Am J Clin Nutr 2021; 114:368-377. [PMID: 33829251 PMCID: PMC8246612 DOI: 10.1093/ajcn/nqab036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/29/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Epidemiological studies have been inconsistent regarding the relations between diabetes risk and the consumption of eggs and nutrients in eggs, such as choline, betaine, and cholesterol. There have been few studies among elderly women. OBJECTIVES The objective of this study was to examine associations between consumption of eggs, cholesterol, choline, and betaine and the risk of diabetes among elderly US women. METHODS Multivariable Cox regression was used with data from the prospective Women's Health Initiative. Population attributable risks were calculated. Consumption of eggs alone (not mixed in foods) and nutrients were assessed with an FFQ. Diabetes incidence was defined as the first incidence of self-reported diabetes treated with oral diabetes medication or insulin injections. RESULTS There were 46,263 women at follow-up baseline. During 13.3 y and 592,984 person-years of follow-up, there were 5480 incident diabetes cases. Higher egg, cholesterol, and choline consumption were each significantly associated with increases in diabetes risk. The associations for eggs and choline were not significant after adjustment for cholesterol consumption. The association for eggs was attenuated after adjustment for non-egg cholesterol consumption, with 1 significant HR in the top consumption quintile (≥3 eggs/wk) of 1.15 (95% CI: 1.05, 1.27; P for linear trend = 0.0001). The population attributable risks for obesity, overweight, consumption of ≥3 eggs/wk, inadequate exercise, and poor diet were 25.0 (95% CI: 22.3, 27.6), 12.8 (95% CI: 11.1, 14.5), 4.2 (95% CI: 2.3, 6.1), 3.5 (95% CI: 1.2, 5.8), and 3.1 (95% CI: 0.5, 5.7), respectively. CONCLUSIONS As egg consumption increased to ≥3 eggs/wk, there was a steady increase in diabetes risk that may have been due to the cholesterol in the eggs. The population attributable risk for ≥3 eggs/wk was far lower than that for being obese or overweight.
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Affiliation(s)
- James A Greenberg
- Department of Health and Nutrition Sciences, Brooklyn College of the City University of New York, Brooklyn, NY, USA
| | - Xinyin Jiang
- Department of Health and Nutrition Sciences, Brooklyn College of the City University of New York, Brooklyn, NY, USA
| | - Lesley F Tinker
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Linda G Snetselaar
- Department of Epidemiology, School of Public Health, University of Iowa, Iowa City, IA, USA
| | - Nazmus Saquib
- Research Unit, College of Medicine, Sulaiman Al-Rajhi Colleges, Al Bukairiyah, Saudi Arabia
| | - Aladdin H Shadyab
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, La Jolla, CA, USA
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Drouin-Chartier JP, Schwab AL, Chen S, Li Y, Sacks FM, Rosner B, Manson JE, Willett WC, Stampfer MJ, Hu FB, Bhupathiraju SN. Egg consumption and risk of type 2 diabetes: findings from 3 large US cohort studies of men and women and a systematic review and meta-analysis of prospective cohort studies. Am J Clin Nutr 2020; 112:619-630. [PMID: 32453379 PMCID: PMC7458776 DOI: 10.1093/ajcn/nqaa115] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Whether egg consumption is associated with the risk of type 2 diabetes (T2D) remains unsettled. OBJECTIVES We evaluated the association between egg consumption and T2D risk in 3 large US prospective cohorts, and performed a systematic review and meta-analysis of prospective cohort studies. METHODS We followed 82,750 women from the Nurses' Health Study (NHS; 1980-2012), 89,636 women from the NHS II (1991-2017), and 41,412 men from the Health Professionals Follow-up Study (HPFS; 1986-2016) who were free of T2D, cardiovascular disease, and cancer at baseline. Egg consumption was assessed every 2-4 y using a validated FFQ. We used Cox proportional hazard models to estimate HRs and 95% CIs. RESULTS During a total of 5,529,959 person-years of follow-up, we documented 20,514 incident cases of T2D in the NHS, NHS II, and HPFS. In the pooled multivariable model adjusted for updated BMI, lifestyle, and dietary confounders, a 1-egg/d increase was associated with a 14% (95% CI: 7%, 20%) higher T2D risk. In random-effects meta-analysis of 16 prospective cohort studies (589,559 participants; 41,248 incident T2D cases), for each 1 egg/d, the pooled RR of T2D was 1.07 (95% CI: 0.99, 1.15; I2 = 69.8%). There were, however, significant differences by geographic region (P for interaction = 0.01). Each 1 egg/d was associated with higher T2D risk among US studies (RR: 1.18; 95% CI: 1.10, 1.27; I2 = 51.3%), but not among European (RR: 0.99; 95% CI: 0.85, 1.15; I2 = 73.5%) or Asian (RR: 0.82; 95% CI: 0.62, 1.09; I2 = 59.1%) studies. CONCLUSIONS Results from the updated meta-analysis show no overall association between moderate egg consumption and risk of T2D. Whether the heterogeneity of the associations among US, European, and Asian cohorts reflects differences in egg consumption habits warrants further investigation.This systematic review was registered at www.crd.york.ac.uk/prospero as CRD42019127860.
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Affiliation(s)
- Jean-Philippe Drouin-Chartier
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Centre for Nutrition, Health and Society (NUTRISS), Laval University, Québec, Quebec, Canada
- Institute on Nutrition and Functional Foods (INAF), Laval University, Québec, Quebec, Canada
- Faculty of Pharmacy, Laval University, Québec, Quebec, Canada
| | - Amanda L Schwab
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Siyu Chen
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Yanping Li
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Frank M Sacks
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bernard Rosner
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - JoAnn E Manson
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Walter C Willett
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Meir J Stampfer
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Frank B Hu
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Shilpa N Bhupathiraju
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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MacDonald CJ, Madika AL, Bonnet F, Fagherazzi G, Lajous M, Boutron-Ruault MC. Cholesterol and Egg Intakes, and Risk of Hypertension in a Large Prospective Cohort of French Women. Nutrients 2020; 12:nu12051350. [PMID: 32397298 PMCID: PMC7285051 DOI: 10.3390/nu12051350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 11/29/2022] Open
Abstract
Purpose: The relationship between egg and cholesterol intakes, and cardiovascular disease is controversial. Meta-analyses indicate that egg consumption is associated with increased cardiovascular disease and mortality, but reduced incidence of hypertension, a major risk factor for cardiovascular disease. This study aims to investigate the associations between consumption of egg and cholesterol, and hypertension risk in a cohort of French women. Methods: We used data from the E3N cohort study, a French prospective population-based study initiated in 1990. From the women in the study, we included those who completed a detailed diet history questionnaire, and who did not have prevalent hypertension or cardiovascular disease at baseline, resulting in 46,424 women. Hypertension cases were self-reported. Egg and cholesterol intake was estimated from dietary history questionnaires. Cox proportional hazard models with time-updated exposures were used to calculate hazard ratios. Spline regression was used to determine any dose–respondent relationship. Results: During 885,321 person years, 13,161 cases of incident hypertension were identified. Higher cholesterol consumption was associated with an increased risk of hypertension: HRQ1–Q5 = 1.22 [1.14:1.30], with associations similar regarding egg consumption up to seven eggs per week: HR4–7 eggs = 1.14 [1.06:1.18]. Evidence for a non-linear relationship between hypertension and cholesterol intake was observed. Conclusions: Egg and cholesterol intakes were associated with a higher risk of hypertension in French women. These results merit further investigation in other populations.
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Affiliation(s)
- Conor-James MacDonald
- INSERM (Institut National de la Santé et de la Recherche Médicale) U1018, Center for Research in Epidemiology and Population Health (CESP), Institut Gustave Roussy, 94805 Villejuif, France; (C.-J.M.); (A.-L.M.); (F.B.); (G.F.)
- Université Paris-Saclay, Université Paris-Sud, 94805 Villejuif, France
| | - Anne-Laure Madika
- INSERM (Institut National de la Santé et de la Recherche Médicale) U1018, Center for Research in Epidemiology and Population Health (CESP), Institut Gustave Roussy, 94805 Villejuif, France; (C.-J.M.); (A.-L.M.); (F.B.); (G.F.)
- Université Paris-Saclay, Université Paris-Sud, 94805 Villejuif, France
- Université de Lille, CHU Lille, EA 2694-Santé publique: épidémiologie et qualité des soins, F-59000 Lille, France
| | - Fabrice Bonnet
- INSERM (Institut National de la Santé et de la Recherche Médicale) U1018, Center for Research in Epidemiology and Population Health (CESP), Institut Gustave Roussy, 94805 Villejuif, France; (C.-J.M.); (A.-L.M.); (F.B.); (G.F.)
- Université Paris-Saclay, Université Paris-Sud, 94805 Villejuif, France
- Faculty of Medicine, Université Rennes1, F-35043 Rennes, France
- Department of endocrinology diabetes and nutrition, CHU Rennes, F-35033 Rennes, France
| | - Guy Fagherazzi
- INSERM (Institut National de la Santé et de la Recherche Médicale) U1018, Center for Research in Epidemiology and Population Health (CESP), Institut Gustave Roussy, 94805 Villejuif, France; (C.-J.M.); (A.-L.M.); (F.B.); (G.F.)
- Université Paris-Saclay, Université Paris-Sud, 94805 Villejuif, France
- Department of Population Health, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg
| | - Martin Lajous
- Center for Research on Population Health, INSP (Instituto Nacional de Salud Pública), Cuernavaca 62100, Mexico;
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Marie-Christine Boutron-Ruault
- INSERM (Institut National de la Santé et de la Recherche Médicale) U1018, Center for Research in Epidemiology and Population Health (CESP), Institut Gustave Roussy, 94805 Villejuif, France; (C.-J.M.); (A.-L.M.); (F.B.); (G.F.)
- Université Paris-Saclay, Université Paris-Sud, 94805 Villejuif, France
- Correspondence: ; Tel.: +33-1-42116466
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Ni LP, Du LY, Huang YQ, Zhou JY. Egg consumption and risk of type 2 diabetes mellitus in middle and elderly Chinese population: An observational study. Medicine (Baltimore) 2020; 99:e19752. [PMID: 32311974 PMCID: PMC7220326 DOI: 10.1097/md.0000000000019752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Data on the association between egg consumption and the risk of type 2 diabetes mellitus (T2DM) in the Chinese population are scarce. In the present study, we aimed to examine the association between egg consumption and the risk of T2DM in a middle and elderly Chinese population. A total of 3298 subjects (1645 men and 1653 women) from the Nutrition and Health Survey (2015-2017) in Hangzhou city were selected for the final analysis. Egg consumption was assessed using a validated food frequency questionnaire. All biochemical data and anthropometric measurements were collected following standardized procedures. Multivariable logistic regression analyses were used to assess the association between egg consumption and the risk of T2DM and the results were presented as odds ratios and 95% confidence interval (CI). Restricted cubic spline combined with logistic regression was used to explore the dose-response relationship between egg consumption and T2DM. Among 3298 subjects, 693 (21.0%) people had T2DM. Compared with participants who did not consume egg per week, the multivariable-adjusted odds ratios were 0.97 (95%CI : 0.78-1.21), 1.08 (95%CI : 0.91-1.06), 1.20 (95%CI : 0.94-1.55), 1.27 (95%CI : 0.99-1.68) in men (P > .05); 1.06 (95%CI : 0.81-1.37), 0.97 (95%CI : 0.78-1.21), 1.26 (95%CI : 0.99-1.59), 1.19 (0.92-1.54) in women (P > .05); 0.89 (95%CI : 0.79-1.04), 0.98 (95%CI : 0.91-1.06), 1.06 (95%CI : 0.87-1.30), 1.09 (95%CI : 0.88-1.34) in both men and women for egg consumption 0∼7, 7, 7∼14, and ≥14 eggs/week, respectively (P > .05). The dose-response curve showed that, with the increase of egg consumption, the risk of T2DM first increased and then decreased (P = .027).We found that the association between egg consumption and T2DM was nonlinear, and higher egg consumption was not associated with an elevated risk for T2DM in middle-aged and elderly Chinese. However, future prospective studies are needed to confirm these findings.
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Pasdar Y, Moradi S, Moludi J, Darbandi M, Niazi P, Nachvak SM, Abdollahzad H. Risk of metabolic syndrome in non-alcoholic fatty liver disease patients. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2019. [DOI: 10.3233/mnm-190290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yahya Pasdar
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shima Moradi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Jalal Moludi
- Nutrition Research Center, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
- Students’ Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mitra Darbandi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Parisa Niazi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyyed Mostafa Nachvak
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hadi Abdollahzad
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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12
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Fan M, Li Y, Wang C, Mao Z, Zhou W, Zhang L, Yang X, Cui S, Li L. Dietary Protein Consumption and the Risk of Type 2 Diabetes: ADose-Response Meta-Analysis of Prospective Studies. Nutrients 2019; 11:nu11112783. [PMID: 31731672 PMCID: PMC6893550 DOI: 10.3390/nu11112783] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/11/2022] Open
Abstract
The relationship between dietary protein consumption and the risk of type 2 diabetes (T2D) has been inconsistent. The aim of this meta-analysis was to explore the relations between dietary protein consumption and the risk of T2D. We conducted systematic retrieval of prospective studies in PubMed, Embase, and Web of Science. Summary relative risks were compiled with a fixed effects model or a random effects model, and a restricted cubic spline regression model and generalized least squares analysis were used to evaluate the diet–T2D incidence relationship. T2D risk increased with increasing consumption of total protein and animal protein, red meat, processed meat, milk, and eggs, respectively, while plant protein and yogurt had an inverse relationship. A non-linear association with the risk for T2D was found for the consumption of plant protein, processed meat, milk, yogurt, and soy. This meta-analysis suggests that substitution of plant protein and yogurt for animal protein, especially red meat and processed meat, can reduce the risk for T2D.
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Affiliation(s)
- Mengying Fan
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Yuqian Li
- Department of Clinical Pharmacology, School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450000, China;
| | - Chongjian Wang
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Zhenxing Mao
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Wen Zhou
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Lulu Zhang
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Xiu Yang
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Songyang Cui
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
| | - Linlin Li
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450000, China; (M.F.); (C.W.); (Z.M.); (W.Z.); (L.Z.); (X.Y.); (S.C.)
- Correspondence: ; Tel.: +86-0371-67781247; Fax: +86-0371-67781868
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13
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Wu Y, Sun G, Zhou X, Zhong C, Chen R, Xiong T, Li Q, Yi N, Xiong G, Hao L, Yang N, Yang X. Pregnancy dietary cholesterol intake, major dietary cholesterol sources, and the risk of gestational diabetes mellitus: A prospective cohort study. Clin Nutr 2019; 39:1525-1534. [PMID: 31296343 DOI: 10.1016/j.clnu.2019.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 05/06/2019] [Accepted: 06/18/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND & AIMS The Scientific Report of 2015 Dietary Guidelines Advisory Committee recommended the elimination of dietary cholesterol limits. However, cholesterol intake increases during pregnancy and studies regarding the association between dietary cholesterol and gestational diabetes mellitus (GDM) are limited. We evaluate the association of total dietary cholesterol and different sources of cholesterol intake during pregnancy, with GDM risk and blood glucose levels in a Chinese prospective cohort study. METHODS A total of 2124 pregnant women from the Tongji Maternal and Child Health Cohort was included. A validated semi-quantitative food frequency questionnaire was used to assess dietary cholesterol intake prior to GDM diagnosis. GDM was diagnosed by the 75-g 2-h oral glucose tolerance test. Cubic-restricted spline function and logistic regression analyses were used to evaluate the association between dietary cholesterol intake during pregnancy and GDM. Generalized linear models were conducted to examine the associations of cholesterol intake with fasting blood glucose (FBG), 1-h post-load blood glucose (PBG) and 2-h PBG. RESULTS The average dietary cholesterol intake was 379.1 mg/d, and cholesterol from eggs explained 64.2% of the variability. Total dietary cholesterol intake and cholesterol from eggs rather than other foods, were linearly associated with GDM risk, with adjusted OR for GDM of 2.10 (95%CI: 1.24, 3.58) for total cholesterol intake and 1.83 (95%CI: 1.08, 3.07) for cholesterol from eggs comparing the highest versus lowest quintile. A 100-mg/d increase in total cholesterol and cholesterol from eggs intake were associated with an increased GDM risk by 18% and 16%, respectively. Moreover, higher maternal dietary total cholesterol could increase FBG and 1-h PBG, while cholesterol from eggs increased FBG only. CONCLUSION Higher dietary cholesterol from eggs intake during pregnancy was associated with greater risk of GDM.
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Affiliation(s)
- Yuanjue Wu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guoqiang Sun
- Hubei Maternal and Child Health Hospital, Wuhan, Hubei, China
| | - Xuezhen Zhou
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chunrong Zhong
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Renjuan Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ting Xiong
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qian Li
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Nianhua Yi
- Hubei Maternal and Child Health Hospital, Wuhan, Hubei, China
| | | | - Liping Hao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Nianhong Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Xuefeng Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Mazidi M, Katsiki N, Mikhailidis DP, Pencina MJ, Banach M. Egg Consumption and Risk of Total and Cause-Specific Mortality: An Individual-Based Cohort Study and Pooling Prospective Studies on Behalf of the Lipid and Blood Pressure Meta-analysis Collaboration (LBPMC) Group. J Am Coll Nutr 2019; 38:552-563. [PMID: 31173548 DOI: 10.1080/07315724.2018.1534620] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Mohsen Mazidi
- Key State Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang, Beijing, China
| | - Niki Katsiki
- Institute of Genetics and Developmental Biology, International College, University of Chinese Academy of Science (IC-UCAS), West Beichen Road, Chaoyang, China
| | - Dimitri P. Mikhailidis
- Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, UK
| | - Michael J. Pencina
- Department of Biostatistics and Bioinformatics, Duke Clinical Research Institute, Durham, North Carolina
| | - Maciej Banach
- Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Poland
- Polish Mother’s Memorial Hospital Research Institute, Lodz, Poland
- Cardiovascular Research Centre, University of Zielona Gora, Zielona Gora, Poland
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15
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Wang X, Son M, Meram C, Wu J. Mechanism and Potential of Egg Consumption and Egg Bioactive Components on Type-2 Diabetes. Nutrients 2019; 11:nu11020357. [PMID: 30744071 PMCID: PMC6413102 DOI: 10.3390/nu11020357] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/01/2019] [Accepted: 02/01/2019] [Indexed: 12/18/2022] Open
Abstract
Type-2 diabetes (T2D) is one of the major global health challenges and a substantial economic burden. Egg and egg-derived components have been indicated to possess antioxidant, anti-inflammatory, anti-hypertensive, immunomodulatory, and anti-cancer activities. However, the scientific evidence about the benefits of egg on T2D is debatable. The relationship between egg consumption and the risk of T2D from observational epidemiological studies is not consistent. Interventional clinical studies, however, provide promising evidence that egg consumption ameliorates the risk of T2D. Current research progress also indicates that some egg components and egg-derived peptides might be beneficial in the context of T2D, in terms of insulin secretion and sensitivity, oxidative stress, and inflammation, suggesting possible application on T2D management. The current review summarizes recent clinical investigations related to the influence of egg consumption on T2D risk and in vivo and in vitro studies on the effect and mechanism of egg components and egg-derived peptides on T2D.
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Affiliation(s)
- Xiaofeng Wang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Myoungjin Son
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Chalamaiah Meram
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2R3, Canada.
- Cardiovascular Research Centre, University of Alberta, Edmonton, AB T6G 2R3, Canada.
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Sabaté J, Burkholder-Cooley NM, Segovia-Siapco G, Oda K, Wells B, Orlich MJ, Fraser GE. Unscrambling the relations of egg and meat consumption with type 2 diabetes risk. Am J Clin Nutr 2018; 108:1121-1128. [PMID: 30329007 PMCID: PMC6250985 DOI: 10.1093/ajcn/nqy213] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 08/20/2018] [Indexed: 01/04/2023] Open
Abstract
Background Meat intake is associated with increased risk of type 2 diabetes (T2D). It is not clear if egg intake is associated with T2D risk because purported associations may be due to concurrent consumption of eggs with meat. Objective Our aim was to differentiate any associations between meat and egg consumption and the risk of T2D. Design In this longitudinal study, 55,851 participants of the Adventist Health Study 2 who were free of diabetes provided demographic, anthropometric, and dietary data at baseline. Meat and egg intakes were assessed with a validated quantitative food-frequency questionnaire. Responses to 2 follow-up questionnaires determined incident T2D cases. Multivariate-adjusted logistic regression was used to determine relations between meat and egg intake and incident T2D. Results T2D cases identified during a mean 5.3 y of follow-up totaled 2772. Meat intake of >0 to <25 g/d, ≥25 to <70 g/d, and ≥70 g/d significantly increased the risk of T2D compared with no meat intake (OR: 1.29; 95% CI: 1.16, 1.44; OR: 1.42; 95% CI: 1.25, 1.61; and OR: 1.65; 95% CI: 1.39, 1.96, respectively; P-trend < 0.0001). Egg intake compared with no egg intake was not associated with T2D risk. A significant meat-egg interaction (P = 0.019) showed that within every category of egg intake, there was an incremental rise in T2D risk as meat intake increased. However, within categories of meat intake, increasing egg intake did not increase the risk of T2D except among nonmeat-eaters consuming ≥5 eggs/wk (OR: 1.52; 95% CI: 1.09, 2.12). Conclusions Meat consumption, but not egg consumption, is independently associated with T2D risk. Egg intake seems not to increase T2D risk further with meat intake. Our findings suggest that the purported egg-T2D risk relation in US populations may be biased due to failure to investigate egg-meat interactions. Further investigations are needed to ascertain T2D risk among nonmeat-eaters with high egg intakes.
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Affiliation(s)
- Joan Sabaté
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA,Address correspondence to JS (e-mail: )
| | - Nasira M Burkholder-Cooley
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA,Department of Nutrition and Food Science, Chapman University, Orange, CA
| | | | - Keiji Oda
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA
| | - Briana Wells
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA
| | - Michael J Orlich
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA,Adventist Health Studies, School of Public Health, Loma Linda, CA,School of Medicine, Loma Linda University, Loma Linda, CA
| | - Gary E Fraser
- Center for Nutrition, Lifestyle and Disease Prevention, Loma Linda, CA,Adventist Health Studies, School of Public Health, Loma Linda, CA,School of Medicine, Loma Linda University, Loma Linda, CA
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17
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The Association of Dietary Cholesterol and Fatty Acids with Dyslipidemia in Chinese Metropolitan Men and Women. Nutrients 2018; 10:nu10080961. [PMID: 30044444 PMCID: PMC6115945 DOI: 10.3390/nu10080961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 07/08/2018] [Accepted: 07/23/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The associations between dietary cholesterol and fatty acids and serum lipids are controversial. This study is to examine the association of dietary cholesterol and fatty acids with serum lipids and dyslipidemia in Chinese metropolitan male and female adults. METHODS 3850 participants in the Shanghai Diet and Health Survey were investigated during the period 2012⁻2013. Information was obtained on dietary intake, anthropometric and blood laboratory measurements. Dyslipidemia was determined by US National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III). RESULTS Dietary cholesterol was in line with serum TC, LDL-C and the LDL-C to HDL-C ratio in general and the partial correlation coefficients were 0.64 (95% CI: 0.13⁻1.15, p = 0.015), 0.73 (95% CI: 0.21⁻1.24, p = 0.006) and 0.01 (95% CI: 0.00⁻0.02, p = 0.018), respectively. The partial correlation coefficients were greater in women. Dietary fatty acids were not associated with serum lipids. The highest quintile of dietary cholesterol intake (≥538.0 mg/day) was associated with an approximate 1.6-fold risk for high TC and high HDL-C compared with the lowest quintile (<193.1 mg/day) generally. CONCLUSIONS Dietary cholesterol was associated with serum cholesterol in Chinese metropolitan adults and a higher risk of dyslipidemia was observed at a high level of dietary cholesterol intake. Whether there should be an upper limit on dietary cholesterol in the Chinese population warrants further study.
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Milajerdi A, Tehrani H, Haghighatdoost F, Larijani B, Surkan PJ, Azadbakht L. Associations between higher egg consumption during pregnancy with lowered risks of high blood pressure and gestational diabetes mellitus. INT J VITAM NUTR RES 2018; 88:166-175. [DOI: 10.1024/0300-9831/a000505] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Abstract. Introduction: The prevalence of gestational diabetes mellitus (GDM) is increasing worldwide. High cholesterol intake may increase the risk of hyperglycemia, yet little research has evaluated the relation between cholesterol or egg as a main source of dietary cholesterol and GDM. We aimed to study this association among pregnant Iranian women. Methods and Participants: Four hundred sixty-two pregnant women participated in this case-control study. Participants’ dietary intake, weight, height, and blood pressure were obtained and BMI was calculated. Fasting plasma glucose and liver enzymes were also measured. Logistic regression was used to obtain odds ratios and 95% confidence intervals for GDM across tertiles of cholesterol and egg consumption. Results: Among study participants, 115 consumed less than one, 194 consumed one and the remaining participants consumed more than one egg per week (mean cholesterol intake 121.31±61.69 mg/d). Participants within the highest tertile of egg consumption had 41% lower risk of GDM (OR: 0.59; 95% CI: 0.35-0.99) compared with those in the lowest tertile (P=0.01). Higher egg consumption was associated with lower risk of having high blood pressure (P=0.01). The difference in odds of GDM and high blood pressure between the highest and the lowest tertile of cholesterol consumption was not significant, even after controlling for age, energy intake, number of children and socio-economic status. Conclusion: Higher dietary intake of egg during pregnancy was associated with lower odds of GDM. We found no significant association between cholesterol intake and odds of GDM. Further research are needed to confirm these results and determine causality.
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Affiliation(s)
- Alireza Milajerdi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hatav Tehrani
- Department of Obstetrics and Gynecology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fahimeh Haghighatdoost
- Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pamela J. Surkan
- Department of international health, John Hopkins School of Public Health, Baltimore, USA
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Department of Obstetrics and Gynecology, Isfahan University of Medical Sciences, Isfahan, Iran
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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19
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Baghdasarian S, Lin HP, Pickering RT, Mott MM, Singer MR, Bradlee ML, Moore LL. Dietary Cholesterol Intake Is Not Associated with Risk of Type 2 Diabetes in the Framingham Offspring Study. Nutrients 2018; 10:E665. [PMID: 29794966 PMCID: PMC6024792 DOI: 10.3390/nu10060665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/15/2018] [Accepted: 05/18/2018] [Indexed: 02/01/2023] Open
Abstract
Identification of diet and lifestyle risk factors for prevention of type 2 diabetes mellitus (T2DM) is of great importance. The specific role of dietary cholesterol (DC) in T2DM risk is unclear. This study uses data from 2192 Framingham Offspring Study subjects to estimate the effects of DC alone and in combination with markers of a healthy diet and other lifestyle factors on fasting glucose and risk of T2DM or impaired fasting glucose (IFG) over 20 years of follow-up. Dietary data were derived from two sets of three-day food records. Statistical methods included mixed linear regression and Cox proportional hazard's modeling to adjust for confounding. There were no statistically significant differences in glucose levels over 20 years of follow-up across DC intake categories (.
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Affiliation(s)
- Siyouneh Baghdasarian
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Hsuan-Ping Lin
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Richard T Pickering
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Melanie M Mott
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Martha R Singer
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - M Loring Bradlee
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Lynn L Moore
- Department of Medicine Section of Preventative Medicine and Epidemiology, Boston University School of Medicine, Boston, MA 02118, USA.
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20
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Štiglic G, Kocbek P, Cilar L, Fijačko N, Stožer A, Zaletel J, Sheikh A, Povalej Bržan P. Development of a screening tool using electronic health records for undiagnosed Type 2 diabetes mellitus and impaired fasting glucose detection in the Slovenian population. Diabet Med 2018; 35:640-649. [PMID: 29460977 DOI: 10.1111/dme.13605] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/15/2018] [Indexed: 12/14/2022]
Abstract
AIM To develop and validate a simplified screening test for undiagnosed Type 2 diabetes mellitus and impaired fasting glucose for the Slovenian population (SloRisk) to be used in the general population. METHODS Data on 11 391 people were collected from the electronic health records of comprehensive medical examinations in five Slovenian healthcare centres. Fasting plasma glucose as well as information related to the Finnish Diabetes Risk Score questionnaire, FINDRISC, were collected for 2073 people to build predictive models. Bootstrapping-based evaluation was used to estimate the area under the receiver-operating characteristic curve performance metric of two proposed logistic regression models as well as the Finnish Diabetes Risk Score model both at recommended and at alternative cut-off values. RESULTS The final model contained five questions for undiagnosed Type 2 diabetes prediction and achieved an area under the receiver-operating characteristic curve of 0.851 (95% CI 0.850-0.853). The impaired fasting glucose prediction model included six questions and achieved an area under the receiver-operating characteristic curve of 0.840 (95% CI 0.839-0.840). There were four questions that were included in both models (age, sex, waist circumference and blood sugar history), with physical activity selected only for undiagnosed Type 2 diabetes and questions on family history and hypertension drug use selected only for the impaired fasting glucose prediction model. CONCLUSIONS This study proposes two simplified models based on FINDRISC questions for screening of undiagnosed Type 2 diabetes and impaired fasting glucose in the Slovenian population. A significant improvement in performance was achieved compared with the original FINDRISC questionnaire. Both models include waist circumference instead of BMI.
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Affiliation(s)
- G Štiglic
- Faculty of Health Sciences, University of Maribor, Maribor, Slovenia
- Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia
| | - P Kocbek
- Faculty of Health Sciences, University of Maribor, Maribor, Slovenia
| | - L Cilar
- Faculty of Health Sciences, University of Maribor, Maribor, Slovenia
| | - N Fijačko
- Faculty of Health Sciences, University of Maribor, Maribor, Slovenia
| | - A Stožer
- Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - J Zaletel
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia
| | - A Sheikh
- Centre for Medical Informatics, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
- Division of General Internal Medicine and Primary Care, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - P Povalej Bržan
- Faculty of Health Sciences, University of Maribor, Maribor, Slovenia
- Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia
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21
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Park SJ, Jung JH, Choi SW, Lee HJ. Association between Egg Consumption and Metabolic Disease. Korean J Food Sci Anim Resour 2018; 38:209-223. [PMID: 29805272 PMCID: PMC5960820 DOI: 10.5851/kosfa.2018.38.2.209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 02/22/2018] [Accepted: 02/28/2018] [Indexed: 11/06/2022] Open
Abstract
The effect of high egg intake on metabolic syndrome (MetS), a major risk factor
for cardiovascular disease (CVD), has not been clearly elucidated. This study
was conducted to review the literature related to egg consumption and the risk
of metabolic disease as well as to examine the association between high egg
intake and MetS in Korean adults. A literature review was conducted using
published papers in PubMed and EMBASE through December 2017. We have reviewed 26
articles, which were associated with egg consumption and metabolic diseases, and
found that the results were controversial. Therefore, we analyzed data from
23,993 Korean adults aged 19 yrs and older. MetS was defined based on criteria
from the Adult Treatment Panel III. Egg consumption of 4-6 times/wk and 1
time/day were significantly associated with reduced prevalence of MetS (Odds
ratio (OR)=0.82; 95% Confidence interval (CI)=0.71-0.95 for 4-6 times/wk,
OR=0.83; 95% CI=0.69-0.99 for 1 time/day) compared to those who consumed eggs
less than once monthly. However, consuming two or more eggs per day was not
associated with MetS. As for the components of MetS, an egg intake of once daily
decreased the prevalence of abdominal obesity and an intake of 2-7 eggs weekly
was shown to prevent a reduction in the high-density lipoprotein cholesterol
levels. This study suggests that while consuming eggs 4-7 times weekly is
associated with a lower prevalence of MetS, consuming two or more eggs daily is
not associated with a reduced risk for MetS.
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Affiliation(s)
- Seon-Joo Park
- Department of Food and Nutrition, College of BioNano Technology, Gachon University, Seongnam 13120, Korea
| | - Ji-Hye Jung
- Institute for Clinical Nutrition, Inje University, Seoul 04551, Korea
| | - Sang-Woon Choi
- Chaum Life Center, CHA University School of Medicine, Seoul 06062, Korea.,Friedman School of Nutrition Science and Policy, Tufts University, Medford 02155, USA
| | - Hae-Jeung Lee
- Department of Food and Nutrition, College of BioNano Technology, Gachon University, Seongnam 13120, Korea
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22
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Feng ZH, Gong JG, Zhao GX, Lin X, Liu YC, Ma KW. Effects of dietary supplementation of resveratrol on performance, egg quality, yolk cholesterol and antioxidant enzyme activity of laying hens. Br Poult Sci 2017; 58:544-549. [DOI: 10.1080/00071668.2017.1349295] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Z. H. Feng
- Institute of Animal Science and Technology, Hebei Agricultural University, Baoding, P.R. China
| | - J. G. Gong
- Institute of Food Science and Technology, Hebei Agricultural University, Baoding, P.R. China
| | - G. X. Zhao
- Institute of Animal Science and Technology, Hebei Agricultural University, Baoding, P.R. China
| | - X. Lin
- Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - Y. C. Liu
- Department of Animal Science, College of Vocational and Technical, Baoding, P.R. China
| | - K. W. Ma
- Department of Animal Science, College of Vocational and Technical, Baoding, P.R. China
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23
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Farhangi MA, Najafi M, Jafarabadi MA, Jahangiry L. Mediterranean dietary quality index and dietary phytochemical index among patients candidate for coronary artery bypass grafting (CABG) surgery. BMC Cardiovasc Disord 2017; 17:114. [PMID: 28482801 PMCID: PMC5422981 DOI: 10.1186/s12872-017-0544-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 04/28/2017] [Indexed: 12/12/2022] Open
Abstract
Background The aim of the present research was to evaluate the relationship between Mediterranean dietary quality index (Med-DQI) and dietary phytochemical index (DPI) with metabolic risk factors of cardiovascular disease in candidates for coronary artery bypass graft (CABG) surgery. Methods This was a cross-sectional study on 454 patients aged 35–80 years as candidates of CABG and hospitalized in Tehran Heart Center. Anthropometric and demographic characteristics were obtained from all participants and a 138-item semi-quantitative food frequency questionnaire (FFQ) was used to evaluate Med-DQI and DPI. Biochemical parameters including HbA1C, serum lipids, albumin, creatinine and C-reactive protein (CRP) were assessed by commercial laboratory methods. Results Patients with higher scores of “saturated fatty acids” had lower serum albumin concentrations (P < 0.05). High scores of “cholesterol” subgroup was also accompanied with higher serum Hb A1C percent (P = 0.04). Significantly higher concentrations of serum creatinine were also observed in categorizes with lower “fish” scores. Patients with lower phytochemical intakes had significantly higher Med-DQI scores. Conclusion According to our findings, high dietary intakes of saturated fatty acids and cholesterol were associated with low serum albumin and Hb A1C concentration. Further studies are needed to better clarify these associations and possible underlying mechanisms.
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Affiliation(s)
- Mahdieh Abbasalizad Farhangi
- Drug Applied Research Center, Nutrition Research Center, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Najafi
- Department of Research, Tehran Heart Center, Tehran University of Medical Sciences, North Karegar Street, Tehran, 1411713138, Iran.
| | | | - Leila Jahangiry
- Tabriz Health Services Managment Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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24
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Comerford KB, Pasin G. Emerging Evidence for the Importance of Dietary Protein Source on Glucoregulatory Markers and Type 2 Diabetes: Different Effects of Dairy, Meat, Fish, Egg, and Plant Protein Foods. Nutrients 2016; 8:nu8080446. [PMID: 27455320 PMCID: PMC4997361 DOI: 10.3390/nu8080446] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 02/07/2023] Open
Abstract
Observational studies provide evidence that a higher intake of protein from plant-based foods and certain animal-based foods is associated with a lower risk for type 2 diabetes. However, there are few distinguishable differences between the glucoregulatory qualities of the proteins in plant-based foods, and it is likely their numerous non-protein components (e.g., fibers and phytochemicals) that drive the relationship with type 2 diabetes risk reduction. Conversely, the glucoregulatory qualities of the proteins in animal-based foods are extremely divergent, with a higher intake of certain animal-based protein foods showing negative effects, and others showing neutral or positive effects on type 2 diabetes risk. Among the various types of animal-based protein foods, a higher intake of dairy products (such as milk, yogurt, cheese and whey protein) consistently shows a beneficial relationship with glucose regulation and/or type 2 diabetes risk reduction. Intervention studies provide evidence that dairy proteins have more potent effects on insulin and incretin secretion compared to other commonly consumed animal proteins. In addition to their protein components, such as insulinogenic amino acids and bioactive peptides, dairy products also contain a food matrix rich in calcium, magnesium, potassium, trans-palmitoleic fatty acids, and low-glycemic index sugars-all of which have been shown to have beneficial effects on aspects of glucose control, insulin secretion, insulin sensitivity and/or type 2 diabetes risk. Furthermore, fermentation and fortification of dairy products with probiotics and vitamin D may improve a dairy product's glucoregulatory effects.
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Affiliation(s)
- Kevin B Comerford
- California Dairy Research Foundation (CDRF), 501 G Street, Ste. 203, Davis, CA 95616, USA.
| | - Gonca Pasin
- California Dairy Research Foundation (CDRF), 501 G Street, Ste. 203, Davis, CA 95616, USA.
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25
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Wallin A, Forouhi NG, Wolk A, Larsson SC. Egg consumption and risk of type 2 diabetes: a prospective study and dose-response meta-analysis. Diabetologia 2016; 59:1204-13. [PMID: 26993632 PMCID: PMC4861752 DOI: 10.1007/s00125-016-3923-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/17/2016] [Indexed: 02/05/2023]
Abstract
AIMS/HYPOTHESIS In this study, we aimed to investigate the association between egg consumption and type 2 diabetes risk in the Cohort of Swedish Men and to conduct a meta-analysis to summarise available prospective evidence on this association. METHODS We followed 39,610 men (aged 45-79 years) from 1998 up to 2012 for incident type 2 diabetes. Egg consumption was assessed at baseline using a food frequency questionnaire. HRs (95% CIs) were estimated using Cox proportional hazards regression models. We searched PubMed (up to 14 December 2015) and reference lists of retrieved articles to identify eligible studies for meta-analysis. RESULTS During the 15 years of follow up, 4,173 men were diagnosed with type 2 diabetes. Compared with men who consumed eggs <1 time/week, the multivariable-adjusted HRs were 0.98 (95% CI 0.92, 1.05), 1.11 (95% CI 0.99, 1.24) and 1.11 (95% CI 0.95, 1.29) for egg consumption 1-2, 3-4 and ≥5 times/week, respectively (p trend = 0.06). In a random-effects dose-response meta-analysis, heterogeneity in the overall estimate was partly explained by differences across regions. The overall HRs for type 2 diabetes for each 3 times/week increment in consumption were 1.18 (95% CI 1.13, 1.24) in five US studies (I (2) = 0%) and 0.97 (95% CI 0.90, 1.05) in seven non-US studies. CONCLUSIONS/INTERPRETATION Our findings in Swedish men do not support an association between egg consumption and risk of type 2 diabetes. In a meta-analysis, frequent egg consumption was associated with a higher risk of type 2 diabetes in US studies only. Egg consumption habits and associated overall dietary patterns may differ between populations and could potentially explain the discrepancies between reported results. Given the inconsistent results, this relationship warrants further study.
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Affiliation(s)
- Alice Wallin
- Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden.
| | - Nita G Forouhi
- Medical Research Council Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK
| | - Alicja Wolk
- Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
| | - Susanna C Larsson
- Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
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26
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Egg consumption and risk of incident type 2 diabetes: a dose–response meta-analysis of prospective cohort studies. Br J Nutr 2016; 115:2212-8. [DOI: 10.1017/s000711451600146x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractExperimental data suggest that egg intake could have a beneficial impact on several risk factors for type 2 diabetes. In contrast, some recent epidemiological studies have concluded that egg consumption may increase diabetes risk. We performed a dose–response meta-analysis of prospective cohorts on the relation of egg consumption with incident type 2 diabetes. We searched for cohort studies that assessed egg consumption and diabetes risk up to June 2015. We identified 416 articles and extracted data independently and in duplicate from ten eligible studies. We used random-effects generalised least squares models for pooled dose–response estimation based on thirteen estimates. Our study included 251 213 individuals and 12 156 incident type 2 diabetes cases. Egg intake was associated with incident type 2 diabetes (risk ratio (RR)/egg per d 1·13; 95 % CI 1·04, 1·22). We identified study location as a major source of heterogeneity. For studies conducted in the USA, we observed a stronger association (RR 1·47; 95 % CI 1·32, 1·64), whereas results were null for studies conducted elsewhere. Studies considered to be of high quality yielded null findings (RR 0·94; 95 % CI 0·74, 1·19). The association of egg intake with increased risk of incident type 2 diabetes may be restricted to US cohort studies. There are limited data to support a biological mechanism that could underlie this association; thus, the possibility that these results may be due to residual confounding by dietary behaviours restricted to certain populations cannot be excluded.
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27
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Djoussé L, Khawaja OA, Gaziano JM. Egg consumption and risk of type 2 diabetes: a meta-analysis of prospective studies. Am J Clin Nutr 2016; 103:474-80. [PMID: 26739035 DOI: 10.3945/ajcn.115.119933] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/28/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Observational data on the association between egg consumption and risk of type 2 diabetes mellitus (DM) have been inconsistent. Because eggs are a good source of protein and micronutrients and are inexpensive, it is important to clarify their role in the risk of developing DM. OBJECTIVE We conducted a meta-analysis of published prospective cohort studies to evaluate the relation of egg consumption with the risk of DM. DESIGN We searched PubMed, Ovid, Cochrane, and Google Scholar (up to October 2015) to retrieve published studies. We used RRs from extreme categories of egg consumption for the main analysis but also evaluated dose response by using cubic splines and generalized least squares regression. RESULTS We identified 12 cohorts for a total of 219,979 subjects and 8911 cases of DM. When comparing the highest with the lowest category of egg intake, pooled multivariate RRs of DM were 1.09 (95% CI: 0.99, 1.20) using the fixed-effect model and 1.06 (95% CI: 0.86, 1.30) using the random-effect model. There was evidence for heterogeneity (I(2) = 73.6%, P < 0.001). When stratified by geographic area, there was a 39% higher risk of DM (95% CI: 21%, 60%) comparing highest with lowest egg consumption in US studies (I(2) = 45.4%, P = 0.089) and no elevated risk of DM with egg intake in non-US studies (RR = 0.89; 95% CI: 0.79, 1.02 using the fixed-effect model, P < 0.001 comparing US with non-US studies). In a dose-response assessment using cubic splines, elevated risk of DM was observed in US studies among people consuming ≥3 eggs/wk but not in non-US studies. CONCLUSIONS Our meta-analysis shows no relation between infrequent egg consumption and DM risk but suggests a modest elevated risk of DM with ≥3 eggs/wk that is restricted to US studies.
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Affiliation(s)
- Luc Djoussé
- Division of Aging, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, and
| | - Owais A Khawaja
- Department of Cardiology, Mercy St. Vincent Medical Center, Toledo, OH
| | - J Michael Gaziano
- Division of Aging, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, and
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