1
|
Dong XX, Chen DL, Miao YF, Li DL, Kai JY, Hu DN, Zhang XF, Carla L, Andrzej G, Pan CW. The impact of 25-hydroxyvitamin D and calcium on risk of age-related macular degeneration: a Mendelian randomization study. Am J Clin Nutr 2024:S0002-9165(24)00590-2. [PMID: 38964658 DOI: 10.1016/j.ajcnut.2024.06.018] [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: 03/09/2024] [Revised: 06/20/2024] [Accepted: 06/28/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND The relationships between 25-hydroxyvitamin D [25(OH)D] and calcium and age-related macular degeneration (AMD) are unclear. OBJECTIVES This study aimed to investigate the causal role of 25(OH)D concentrations, calcium concentrations, and dietary supplements use of vitamin D and calcium on risk of AMD and its subtypes. METHODS Independent genetic variants associated with 25(OH)D and calcium concentrations were used as instrumental variables in published genome-wide association studies (GWASs) of European ancestry. The bidirectional 2-sample Mendelian randomization (MR) analyses were performed using summary-level data from the UK Biobank and FinnGen datasets. Sensitivity analyses were conducted to ensure the robustness of the MR results. The meta-analyses were conducted using both fixed-effect and random-effect models to provide comprehensive and reliable estimates. RESULTS A standard deviation increase in calcium concentrations was linked to a 14%, 17%, and 13% reduction in the likelihood of developing AMD (95% confidence interval [CI]: 0.77, 0.97), wet AMD (95% CI: 0.73, 0.95), and dry AMD (95% CI: 0.75, 1.00), respectively. No significant causal relationships were detected between genetically predicted 25(OH)D concentrations and AMD and its subtypes (all P > 0.05). The combined analyses showed that higher calcium concentrations were associated with a reduced risk of overall AMD, with an odds ratio of 0.89 (95% CI: 0.81, 0.98). CONCLUSIONS This study provides evidence supporting the causal relationship between calcium concentrations and risk of AMD and its subtypes, which may have important implications for the prevention, monitoring, and treatment of AMD.
Collapse
Affiliation(s)
- Xing-Xuan Dong
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Dong-Ling Chen
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yi-Fan Miao
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Dan-Lin Li
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Jia-Yan Kai
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Dan-Ning Hu
- New York Eye and Ear Infirmary of Mount Sinai, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
| | - Xiao-Feng Zhang
- Department of Ophthalmology, The Fourth Affiliated Hospital of Soochow University, Suzhou, China
| | - Lanca Carla
- Escola Superior de Tecnologia da Saúde de Lisboa (ESTeSL), Instituto Politécnico de Lisboa, Lisboa, Portugal; Comprehensive Health Research Center (CHRC), Escola Nacional de Saúde Pública, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Grzybowski Andrzej
- Institute for Research in Ophthalmology, Foundation for Ophthalmology Development, Poznan, Poland
| | - Chen-Wei Pan
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China.
| |
Collapse
|
2
|
Tatoli R, Lampignano L, Donghia R, Niro A, Castellana F, Bortone I, Zupo R, Tirelli S, Lozupone M, Panza F, Alessio G, Boscia F, Sborgia G, Sardone R. Retinal Microvasculature and Neural Changes and Dietary Patterns in an Older Population in Southern Italy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5108. [PMID: 36982016 PMCID: PMC10049576 DOI: 10.3390/ijerph20065108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Like other parts of the body, the retina and its neurovascular system are also affected by age-related changes. The rising age of populations worldwide makes it important to study the pathologies related to age and their potential risk factors, such as diet and eating habits. The aim of this study was to investigate the predictive power of food groups versus retinal features among noninstitutionalized older adults from Southern Italy using a machine learning approach. METHODS We recruited 530 subjects, with a mean age of 74 years, who were drawn from the large population of the Salus in Apulia Study. In the present cross-sectional study, eating habits were assessed with a validated food frequency questionnaire. For the visual assessment, a complete ophthalmic examination and optical coherence tomography-angiography analyses were performed. RESULTS The analyses identified 13 out of the 28 food groups as predictors of all our retinal variables: grains, legumes, olives-vegetable oil, fruiting vegetables, other vegetables, fruits, sweets, fish, dairy, low-fat dairy, red meat, white meat, and processed meat. CONCLUSIONS Eating habits and food consumption may be important risk factors for age-related retinal changes. A diet that provides the optimal intake of specific nutrients with antioxidant and anti-inflammatory powers, including carotenoids and omega-3 fatty acids, could have beneficial effects.
Collapse
Affiliation(s)
- Rossella Tatoli
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Luisa Lampignano
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Rossella Donghia
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Alfredo Niro
- Eye Clinic, Hospital “SS. Annunziata”, ASL Taranto, 74100 Taranto, Italy
| | - Fabio Castellana
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Ilaria Bortone
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Roberta Zupo
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Sarah Tirelli
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| | - Madia Lozupone
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Francesco Panza
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Giovanni Alessio
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Francesco Boscia
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Giancarlo Sborgia
- Department of Translational Biomedicine and Neuroscience “DiBraiN”, University of Bari Aldo Moro, 70121 Bari, Italy
| | | | - Rodolfo Sardone
- National Institute of Gastroenterology—IRCCS “Saverio de Bellis”, Research Hospital, 70013 Bari, Italy
| |
Collapse
|
3
|
Cirone C, Cirone KD, Malvankar-Mehta MS. Linkage between a plant-based diet and age-related eye diseases: a systematic review and meta-analysis. Nutr Rev 2023; 81:428-440. [PMID: 36102832 DOI: 10.1093/nutrit/nuac067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
CONTEXT An increased risk of age-related eye disease has been observed in individuals lacking a balanced diet. Following a plant-based diet may result in nutritional insufficiencies and negatively affect health if an effort is not made to ensure the consumption of fortified foods or specific supplements. OBJECTIVE The purpose of this article is to characterize the relationship between plant-based diets and age-related ocular outcomes among adults. DATA SOURCES A comprehensive literature review was performed using the MEDLINE, Embase, Cochrane, and PubMed databases up until December 19, 2021. STUDY SELECTION Studies that focused on observed visual changes due to a reduced intake of animal products and that included a minimum of 50 eyes were eligible for inclusion. DATA EXTRACTION Two levels of screening, quality assessment, and data extraction were conducted by 2 reviewers independently. The 21 studies identified from 814 unique studies progressed to data extraction and 15 were included in the quantitative analysis using STATA 15.0 fixed-effect and random-effect models computed on the basis of heterogeneity. RESULTS The 15 (n = 51 695 participants) assessed the impact of fish consumption, 8 studies (n = 28 753 participants) analyzed the effect of red meat intake, and 3 studies (n = 7723 participants) assessed the impact of omission of skim milk, poultry, and non-meat animal products and the presence of disease incidence as indicated by age-related macular degeneration or cataract development. Meta-analysis indicated regular consumption of fish (odds ratio [OR], 0.70; 95%CI, 0.62-0.79) and skim milk, poultry, and non-meat animal products (OR, 0.70; 95%CI, 0.61-0.79) reduced the risk of age-related eye disease development among adults. Consumption of red meat (OR, 1.41; 95%CI, 1.07-1.86) may increase the risk of age-related eye disease development. CONCLUSION A pescatarian diet is associated with the most favorable visual outcomes among adults, whereas consumption of red meat negatively affects ocular health. Results suggest a need for more initiatives promoting a healthy and balanced diet. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021269925.
Collapse
Affiliation(s)
- Cristina Cirone
- is with the School of Nutrition, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Katrina D Cirone
- is with the Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Monali S Malvankar-Mehta
- is with the Department of Ophthalmology, and the Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| |
Collapse
|
4
|
The Relationship between Dietary Calcium and Age-Related Macular Degeneration. Nutrients 2023; 15:nu15030671. [PMID: 36771377 PMCID: PMC9920890 DOI: 10.3390/nu15030671] [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: 12/08/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Mineral element supplements are widely used in the older adult population. However, little is known of their impact on the progression of age-related macular degeneration (ARMD). The aim of this study was to examine the association between dietary micronutrients and ARMD in older adults. METHODS We enrolled 5227 participants from the National Health and Nutrition Examination Survey (NHANES 2005-2008) in this cross-sectional study. ARMD was evaluated using an ophthalmic digital imaging system and digital camera. Mineral element consumption was collected using a 24-hour dietary recall. The association between mineral element use and the presence of ARMD was determined by multivariable logistic regression. RESULTS After adjusting for relevant variables, dietary calcium was negatively associated with ARMD (OR: 680, 95%CI: 0.482-0.960). In contrast to dietary form, serum concentration of calcium was not associated with ARMD. Moreover, increased dietary calcium was associated with reduced ARMD (OR: 0.684, 95%CI: 0.468-1.000). CONCLUSION A lower consumption of dietary calcium was significantly associated with a higher risk of ARMD. Further longitudinal studies are necessary to explore these findings.
Collapse
|
5
|
Tang D, Macniven R, Bender N, Jones C, Gopinath B. Development, implementation and evaluation of the online Movement, Interaction and Nutrition for Greater Lifestyles in the Elderly (MINGLE) program: The protocol for a pilot trial. PLoS One 2022; 17:e0267581. [PMID: 35551541 PMCID: PMC9097998 DOI: 10.1371/journal.pone.0267581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 03/16/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction People with age-related macular degeneration (AMD) are more likely to experience loneliness, have poorer diets and be less physically active than people without AMD. The online Movement, Interaction and Nutrition for Greater Lifestyles in the Elderly (MINGLE) program is a holistic evidence-based intervention aiming to support people with AMD by incorporating physical activity, social interaction and nutrition education components all delivered via a COVID-19-safe Zoom platform. This study will involve two phases: 1) a formative qualitative study with AMD patients to identify the barriers and facilitators to participating in the proposed MINGLE program; and 2) a 10-week pilot study to evaluate the feasibility, acceptability and preliminary efficacy of MINGLE. Methods and analysis Phase 1 involves AMD patients who will be recruited from an eye clinic in Western Sydney, Australia to participate in audio-recorded semi-structured interviews. Verbatim interview transcripts will be coded using the Capability, Opportunity, Motivation and Behaviour (COM-B) model and themes established. These themes will be used as a guide to specifically tailor the proposed MINGLE program to people with AMD. Phase 2 involves 52 AMD patients who will then be recruited from the same clinic to participate in the MINGLE program. Pre-post questionnaires will be administered to intervention participants to collect information on the following variables: demographics, socioeconomic status, vision function, loneliness, quality of life (including depression), falls risk, physical activity (level), and dietary intake. The acceptability and feasibility of the MINGLE program will also be evaluated using descriptive statistics. Trial registration number ACTRN12621000939897p.
Collapse
Affiliation(s)
- Diana Tang
- Macquarie University Hearing, Macquarie University, North Ryde, New South Wales, Australia
- * E-mail:
| | - Rona Macniven
- Macquarie University Hearing, Macquarie University, North Ryde, New South Wales, Australia
- School of Population Health, Faculty of Medicine and Health, UNSW Sydney, Kensington, New South Wales, Australia
| | | | - Charlotte Jones
- Southern Medical Program, University of British Columbia, Okanagan Campus, Kelowna, Canada
| | - Bamini Gopinath
- Macquarie University Hearing, Macquarie University, North Ryde, New South Wales, Australia
| |
Collapse
|
6
|
Kobayashi MA, Lee TK, St George SM, Lebron C, Dorcius D, Prado G, Messiah SE. Intergenerational cardiovascular disease risks among Hispanics living in the United States. Pediatr Obes 2022; 17:e12870. [PMID: 34751514 DOI: 10.1111/ijpo.12870] [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: 04/13/2021] [Revised: 09/02/2021] [Accepted: 09/20/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Few studies have assessed intergenerational associations of obesity and cardiovascular disease risks from parents to their children among Hispanic Americans. OBJECTIVES To assess intergenerational cardiovascular associations among Hispanic families. METHODS Using baseline data from an obesity-focused efficacy trial targeting Hispanic adolescents (n = 280) and their parents, we conducted a series of logistic regression analyses to investigate the effects of parental BMI and blood pressure on adolescents' BMI and blood pressure, respectively. RESULTS After adjusting for significant socio-demographic variables and adolescents' lifestyle behaviours, adolescents were more than twice as likely to be in the severely obese versus overweight range when their parents had obesity (vs. non-obese; OR = 2.55, 95% CI = 1.20, 5.39) and more than twice as likely to be in the severely obese versus obese weight range (OR = 2.44, 95% CI = 1.22, 4.87) when their parents had obesity. When compared to those with normal blood pressure, adolescents who had parents with elevated blood pressure/hypertension were more than twice as likely to have elevated blood pressure (OR = 2.05, 95% CI = 1.04, 4.00) or be classified as hypertensive stage 1/2 (OR = 2.81, 95% CI = 1.31, 6.01). CONCLUSIONS Both severe obesity and elevated blood pressure are highly associated among Hispanic parent-child dyads. Findings underscore the potential benefits of intervening with the family system.
Collapse
Affiliation(s)
- Marissa A Kobayashi
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA.,Department of Psychology, University of Miami, Coral Gables, Florida, USA
| | - Tae K Lee
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Sara M St George
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Cynthia Lebron
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA.,School of Nursing and Health Studies, University of Miami, Coral Gables, Florida, USA
| | - David Dorcius
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA.,Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
| | - Guillermo Prado
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA.,School of Nursing and Health Studies, University of Miami, Coral Gables, Florida, USA
| | - Sarah E Messiah
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, Florida, USA.,Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas Health Science Center, School of Public Health, Dallas, Texas, USA.,Center for Pediatric Population Health, UTHealth School of Public Health and Children's Health System of Texas, Dallas, Texas, USA
| |
Collapse
|
7
|
Li J, Zhao D, Deng Q, Hao Y, Wang M, Sun J, Liu J, Ren G, Li H, Qi Y, Liu J. Reduced serum calcium is associated with a higher risk of retinopathy in non-diabetic individuals: The Chinese Multi-provincial Cohort Study. Front Endocrinol (Lausanne) 2022; 13:973078. [PMID: 36531449 PMCID: PMC9747923 DOI: 10.3389/fendo.2022.973078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 11/16/2022] [Indexed: 12/02/2022] Open
Abstract
AIMS As a common micro-vascular disease, retinopathy can also present in non-diabetic individuals and increase the risk of clinical cardiovascular disease. Understanding the relationship between serum calcium and retinopathy would contribute to etiological study and disease prevention. METHODS A total of 1836 participants (aged 55-84 years and diabetes-free) from the Chinese Multi-Provincial Cohort Study-Beijing Project in 2012 were included for analyzing the relation between serum calcium level and retinopathy prevalence. Of these, 1407 non-diabetic participants with data on serum calcium in both the 2007 and 2012 surveys were included for analyzing the association of five-year changes in serum calcium with retinopathy risk. The retinopathy was determined from retinal images by ophthalmologists and a computer-aided system using convolutional neural network (CNN). The association between serum calcium and retinopathy risk was assessed by multivariate logistic regression. RESULTS Among the 1836 participants (male, 42.5%), 330 (18.0%) had retinopathy determined by CNN. After multivariate adjustment, the odds ratio (OR) comparing the lowest quartiles (serum calcium < 2.38 mmol/L) to the highest quartiles (serum calcium ≥ 2.50 mmol/L) for the prevalence of retinopathy determined by CNN was 1.58 (95% confidence interval [CI]: 1.10 - 2.27). The findings were consistent with the result discerned by ophthalmologists, and either by CNN or ophthalmologists. These relationships are preserved even in those without metabolic risk factors, including hypertension, high hemoglobin A1c, high fasting blood glucose, or high low-density lipoprotein cholesterol. Over 5 years, participants with the sustainably low levels of serum calcium (OR: 1.58; 95%CI: 1.05 - 2.39) and those who experienced a decrease in serum calcium (OR: 1.56; 95%CI: 1.04 - 2.35) had an increased risk of retinopathy than those with the sustainably high level of serum calcium. CONCLUSIONS Reduced serum calcium was independently associated with an increased risk of retinopathy in non-diabetic individuals. Moreover, reduction of serum calcium could further increase the risk of retinopathy even in the absence of hypertension, high glucose, or high cholesterol. This study suggested that maintaining a high level of serum calcium may be recommended for reducing the growing burden of retinopathy. Further large prospective studies will allow more detailed information.
Collapse
Affiliation(s)
- Jiangtao Li
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Dong Zhao
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Qiuju Deng
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Yongchen Hao
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Miao Wang
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Jiayi Sun
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Jun Liu
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
| | - Guandi Ren
- School of Information and Electronics, Beijing Institute of Technology, Beijing, China
| | - Huiqi Li
- School of Information and Electronics, Beijing Institute of Technology, Beijing, China
| | - Yue Qi
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
- *Correspondence: Yue Qi, ; ; Jing Liu,
| | - Jing Liu
- Center for Clinical and Epidemiologic Research, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
- Beijing Municipal Key laboratory of Clinical Epidemiology, Beijing, China
- *Correspondence: Yue Qi, ; ; Jing Liu,
| |
Collapse
|
8
|
Peripheral Monocyte Count and Age-Related Macular Degeneration. The Tongren Health Care Study. Am J Ophthalmol 2021; 227:143-153. [PMID: 33737032 DOI: 10.1016/j.ajo.2021.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/18/2021] [Accepted: 03/08/2021] [Indexed: 01/08/2023]
Abstract
PURPOSE To assess potential associations between the prevalence of age-related macular degeneration (AMD) and systemic parameters in a Chinese population. DESIGN Cross-sectional study. METHODS The Tongren Health Care Study included individuals attending regular health care check-up examinations in the Beijing Tongren Hospital from 2017 to 2019. Detailed medical examinations and ophthalmic examinations were applied, including fundus photography. AMD was evaluated according to the Beckman Initiative guidelines. RESULTS The study included 7,719 participants (mean age: 60.5 ± 8.1 years; range: 50-97 years). The prevalence of any, early, intermediate, and late AMD was 1,607 of 7,719 (20.8%; 95% confidence interval [CI]: 20.1%, 21.9%), 832 of 7,719 (10.8%; 95% CI: 10.1%, 11.5%), 733 of 7,719 (9.5%; 95% CI: 8.9%, 10.2%), and 42 of 7,719 (0.50%; 95% CI: 0.40%, 0.70%), respectively. In multivariate analysis, the prevalence of any AMD increased with higher blood monocyte count (odds ratio [OR]:3.49; 95% CI: 2.26, 5.38; P < .001), after adjusting for older age (OR: 1.06; 95% CI: 1.05, 1.07; P < .001), higher serum concentration of calcium (OR: 2.52; 95% CI: 1.32, 4.84; P = .005), high-density lipoproteins (OR: 1.39; 95% CI: 1.19, 1.61; P < .001), and lower lipoprotein a (OR: 0.99; 95% CI: 0.98, 0.99; P = .02). Similar findings were obtained for the prevalence of intermediate and late AMD combined. The association between higher monocyte count and higher AMD prevalence showed the highest odds ratio for the age group of 50-59 years (any AMD: OR: 4.35, P < .001; intermediate and late AMD: OR: 6.14, P < .001). Individuals with a monocyte count of ≥0.5 × 109/L as compared to participants with a monocyte of 0.1-0.4 × 109/L had a 1.45-fold increased risk for any AMD (OR: 1.45; 95% CI: 1.27, 1.64; P < .001) and 1.58 fold increase risk for intermediate/late AMD (OR: 1.58; 95% CI: 1.33, 1.87; P < .001). CONCLUSION A higher prevalence of early AMD, intermediate AMD, late AMD, and any AMD was associated with a higher peripheral monocyte count. In agreement with previous studies, the observation suggests monocytes playing a role in the pathogenesis of AMD.
Collapse
|
9
|
Lecerf JM. [Nutritional advices for postmenopausal woman. Postmenopausal women management: CNGOF and GEMVi clinical practice guidelines]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2021; 49:349-357. [PMID: 33753299 DOI: 10.1016/j.gofs.2021.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Menopause is a key period for health due to physiological changes, particularly of body composition (with decrease of lean mass and increase of fat mass) and of body fat distribution, leading to a higher risk for bone and muscular health and cardiometabolic health. Nutritional advices, associated to physical activity advices, may partially prevent these effects. The energy balance will be moderately negative if there is a weight gain, while the protein intake will be preserved and a regular physical activity will be increased. A Mediterranean style diet will be beneficial on cardiovascular health. Dairy products will be preserved, but restrictive and dietary exclusion will be avoided.
Collapse
Affiliation(s)
- J-M Lecerf
- Service de nutrition et activité physique, institut Pasteur de Lille, 1, rue du Professeur-Calmette, 59019 Lille cedex, France; Service de médecine interne, CHRU Lille, Lille, France.
| |
Collapse
|
10
|
Ma HH, Liutkevičienė R. Age-Related Macular Degeneration: What Do We Know So Far? Acta Med Litu 2021; 28:36-47. [PMID: 34393627 PMCID: PMC8311835 DOI: 10.15388/amed.2021.28.1.7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/28/2021] [Accepted: 01/28/2021] [Indexed: 01/17/2023] Open
Abstract
Ageing is a natural process that everyone experiences and nobody is an exception. With ageing, our body experiences physiological changes. In this article, the focus is made on the physiological changes of our eyes related to ageing and age-related macular degeneration (AMD), which is the most common cause of incurable visual impairment in developed countries. With ageing populations increasing in many countries, more and more patients will have AMD in a foreseeable future. In Eastern Europe, blindness due to AMD, currently, is approximately 20% and there has been an increasing trend depicted in the future. Generally, AMD can be divided into early stages and two forms in an advanced (late) stage. Advanced AMD form includes neovascular AMD (wet) and geographic atrophy (late dry), both of these are associated with substantial, progressive visual impairment. The pathogenesis of AMD is complex and, by far, not completely understood. Multiple factors have been studied, for example: environmental factor, genetic factor (complement factor H), lifestyle. It has been proved that they are linked to higher the risk of developing of AMD, however, the actual pathogenesis is not yet formulated. AMD progression can also be a culprit to certain biochemical events and molecular changes linked to inflammation and pathological angiogenesis. In nowadays, we do have diagnostic methods for both early and late forms of AMD as well as ways to prevent progression of early AMD and wet AMD. However, until now, there is still no treatment for dry AMD. This article is a brief review of AMD and may hopefully lead to some future directions in early diagnostic methods and treating dry AMD.
Collapse
Affiliation(s)
- Ho Hin Ma
- Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Rasa Liutkevičienė
- Neuroscience Institute, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| |
Collapse
|
11
|
El-Eshmawy MM, Shahin M. Thyroid and Eye: Where They Meet in Clinical Practice. Endocr Metab Immune Disord Drug Targets 2020; 20:39-49. [PMID: 31237221 DOI: 10.2174/1871530319666190618120107] [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: 02/05/2019] [Revised: 04/25/2019] [Accepted: 05/03/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Thyroid Hormones (TH) are essential for normal growth, development and continued optimal function of most of the body organs including the eye. TH signaling plays a central role in the regulation of retinal development and maturation. Deficiency in TH during fetal and early postnatal development impairs growth of the eye and proliferation of all retinal cell types. The present article reviews the most important topics of the different derangements in thyroid function and structure and its relation with eye diseases. METHODS A literature search strategy was conducted for all English-language literature. RESULTS From a clinical practice viewpoint, it should be mentioned that both hypothyroidism and hyperthyroidism are accompanied by ocular diseases i.e. thyroid-associated ophthalmopathy, diabetic retinopathy and age-related macular degeneration. Although the orbit and globe are not common sites for metastatic thyroid cancers, orbital metastasis may be the primary clinical manifestation of thyroid carcinoma. Finally, some medications as amiodarone may be accompanied by both thyroid dysfunction and adverse ocular events. CONCLUSION Thyroid disorders and eye diseases are interrelated through several mechanisms thus, awareness of this relation has a great impact on early diagnosis and treatment.
Collapse
Affiliation(s)
- Mervat M El-Eshmawy
- Internal Medicine Department, Mansoura Specialized Medical Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Maha Shahin
- Ophthalmology Department, Mansoura Ophthalmic Center, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| |
Collapse
|
12
|
Gocuk SA, Lee J, Keller PR, Ayton LN, Guymer RH, McKendrick AM, Downie LE. Clinical audit as an educative tool for optometrists: an intervention study in age‐related macular degeneration. Ophthalmic Physiol Opt 2020; 41:53-72. [DOI: 10.1111/opo.12754] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/13/2020] [Accepted: 09/21/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Sena A Gocuk
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
| | - Ji‐hyun Lee
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
| | - Peter R Keller
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
| | - Lauren N Ayton
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
- Department of Surgery (Ophthalmology) The University of Melbourne Parkville Australia
- Centre for Eye Research Australia Royal Victorian Eye and Ear Hospital Melbourne Australia
| | - Robyn H Guymer
- Department of Surgery (Ophthalmology) The University of Melbourne Parkville Australia
- Centre for Eye Research Australia Royal Victorian Eye and Ear Hospital Melbourne Australia
| | - Allison M McKendrick
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
| | - Laura E Downie
- Department of Optometry and Vision Sciences The University of Melbourne Parkville Australia
| |
Collapse
|
13
|
Xu Y, Lu B, Zhou Y, Ren S, Pang G, Deng A. Is dietary fat associated with the risk of age-related macular degeneration? Protocol for a systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e19081. [PMID: 32332595 PMCID: PMC7220680 DOI: 10.1097/md.0000000000019081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 11/26/2022] Open
Abstract
Previous studies evaluating the association of dietary fat and risk of age-related macular degeneration (AMD) yield discrepant results. The objective of this systematic review (SR) and meta-analysis is to establish whether an association exists between dietary fat and AMD. This protocol was developed in line with the quality requirements of the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) statement. PubMed and EMBASE will be searched for randomized controlled trials (RCTs), non-randomized trials (NRTs), cross-sectional studies, cohort studies, and case-control studies that evaluate the total incidence of AMD. The data extraction content and quantitative analysis will be carried out systematically. Newcastle-Ottawa Scale (NOS), the Cochrane risk of bias tool, and quality assessment tools will be used for quality assessment. This SR will synthesize evidence to determine if there is an association between dietary fat and AMD. The evidence would provide rationale for future research and serve as a basis for the development of future guidelines. Results are expected to be publicly available in mid 2020.PROSPERO registration number: CRD42019137086.
Collapse
Affiliation(s)
- Yunsheng Xu
- Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province
| | - Bo Lu
- Shaanxi Traditional Chinese Medicine Hospital, Xi’an, Shaanxi Province
| | - Yana Zhou
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei Province
| | - Shuxia Ren
- School of Computer Science and Technology, Tianjin Polytechnic University, Tianjin
| | - Guoming Pang
- Kaifeng Hospital of Traditional Chinese Medicine, Kaifeng, Henan Province
| | - Aijun Deng
- Department of Ophthalmology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| |
Collapse
|
14
|
Tisdale AK, Agrón E, Sunshine SB, Clemons TE, Ferris FL, Chew EY. Association of Dietary and Supplementary Calcium Intake With Age-Related Macular Degeneration: Age-Related Eye Disease Study Report 39. JAMA Ophthalmol 2020; 137:543-550. [PMID: 30896764 DOI: 10.1001/jamaophthalmol.2019.0292] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Importance Previous studies of the role of dietary and supplementary calcium in age-related macular degeneration (AMD) have produced mixed results, suggesting that supplementation and decreased dietary intake are both harmful. Objective To evaluate the association of baseline dietary and supplementary calcium intake with progression of AMD. Design, Setting, and Participants This study involved secondary analyses of participants enrolled in the Age-Related Eye Disease Study (AREDS). The AREDS study (1992-2001) enrolled patients from academic and community-based retinal practices in the United States. Men and women with varying severity of AMD were included. Data analysis for this article occurred from September 2015 to December 2018. Exposures Baseline self-reported dietary or supplementary calcium intake. Main Outcomes and Measures Development of late AMD, geographic atrophy (central or noncentral), or neovascular AMD detected on centrally graded baseline and annual fundus photographs. Results A total of 4751 participants were included (mean [SD] age, 69.4 [5.1] years); 4543 (95.6%) were white, and 2655 (55.9%) were female. Compared with those who were in the lowest quintile, the participants in the highest quintile of dietary calcium intake had a lower risk of developing late AMD (hazard ratio [HR], 0.73 [95% CI, 0.59-0.90]), central geographic atrophy (HR, 0.64 [95% CI, 0.48-0.86]), and any geographic atrophy (HR, 0.80 [95% CI, 0.64-1.00]). The participants in the highest tertile of supplementary calcium intake had a lower risk of developing neovascular AMD (HR, 0.70 [95% CI, 0.50-0.97]) compared with those who did not take calcium supplements. When stratified by sex, women in the highest quintile of dietary calcium intake had a lower risk of developing late AMD (HR, 0.73 [95% CI, 0.56-0.97]) compared with those in the lowest quintile. Women in the highest tertile of calcium supplementation had a lower risk of progression to neovascular AMD (HR, 0.67 [95% CI, 0.48-0.94]) compared with those who did not take calcium supplements. Similar findings were found in men for dietary calcium. Too few men took calcium supplements to allow for analyses. Conclusions and Relevance In this secondary analysis, higher levels of dietary and supplementary calcium intake were associated with lower incidence of progression to late AMD in AREDS participants. The results may be owing to uncontrolled confounding or chance and should be considered hypothesis development requiring additional study.
Collapse
Affiliation(s)
- Alanna K Tisdale
- Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Elvira Agrón
- Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Sarah B Sunshine
- Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | | | - Frederick L Ferris
- Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Emily Y Chew
- Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | | |
Collapse
|
15
|
Jalbert I, Rahardjo D, Yashadhana A, Liew G, Gopinath B. A qualitative exploration of Australian eyecare professional perspectives on Age-Related Macular Degeneration (AMD) care. PLoS One 2020; 15:e0228858. [PMID: 32045445 PMCID: PMC7012424 DOI: 10.1371/journal.pone.0228858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/25/2020] [Indexed: 01/22/2023] Open
Abstract
Despite the existence of evidence-based recommendations to decrease risk and progression of Age-Related Macular Degeneration (AMD) for some time, self-reported practices suggest that eyecare professionals' advice and people with AMD's adherence to these recommendations can be very poor. This study uses qualitative methods to explore Australian eyecare professionals' perspective on barriers to effective AMD care. Seven focus groups involving 65 optometrists were conducted by an experienced facilitator. A nominal group technique was used to identify, prioritize and semi-quantify barriers and enablers to AMD care. Participants individually ranked their perceived top five barriers and enablers with the most important granted a score of 5 and the least important a score of 1. For each barrier or enabler, the number of votes it received and its total score were recorded. Barriers and enablers selected by at least one participant in their top 5 were then qualitatively analysed, grouped using thematic analysis and total score calculated for each consolidated barrier or enabler. In-depth individual interviews were conducted with 10 ophthalmologists and 2 optometrists. Contributions were audio-recorded, transcribed verbatim and analysed with NVivo software. One hundred and sixty-nine barriers and 51 enablers to AMD care were identified in the focus groups. Of these, 102 barriers and 42 enablers were selected as one of their top 5 by at least one participant and further consolidated into 16 barriers and 10 enablers after thematic analysis. Factors impacting AMD care identified through analysis of the transcripts were coded to three categories of influence: patient-centered, practitioner-centered, and structural factors. Eyecare professionals considered poor care pathways, people with AMD's poor disease understanding / denial, and cost of care / lack of funding, as the most significant barriers to AMD care; they considered shared care model, access, and communication as the most significant enablers to good AMD care. These findings suggest that Australian eyecare professionals perceive that there is a need for improved patient support systems and appropriately funded, clearer care pathway to benefit people with AMD.
Collapse
Affiliation(s)
- Isabelle Jalbert
- School of Optometry and Vision Science, UNSW Sydney, Sydney, Australia
| | - Dian Rahardjo
- School of Optometry and Vision Science, UNSW Sydney, Sydney, Australia
| | - Aryati Yashadhana
- School of Optometry and Vision Science, UNSW Sydney, Sydney, Australia
| | - Gerald Liew
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
| | - Bamini Gopinath
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
| |
Collapse
|
16
|
Tang D, Mitchell P, Liew G, Burlutsky G, Flood V, Gopinath B. Evaluation of a Novel Tool for Screening Inadequate Food Intake in Age-Related Macular Degeneration Patients. Nutrients 2019; 11:E3031. [PMID: 31842257 PMCID: PMC6949902 DOI: 10.3390/nu11123031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/02/2019] [Accepted: 12/10/2019] [Indexed: 11/16/2022] Open
Abstract
Diet assessment tools provide valuable nutrition information in research and clinical settings. With growing evidence supporting dietary modification to delay development and progression of age-related macular degeneration (AMD), an AMD-specific diet assessment tool could encourage eye-care practitioners to refer patients in need of further dietary behavioural support to a dietitian and/or support network. Therefore, the aim of this study was to evaluate clinical use of a novel, short dietary questionnaire (SDQ-AMD) to screen for inadequate food intake in AMD patients by comparing it against a validated food frequency questionnaire (FFQ). Recruitment sources included Sydney-based private eye clinics and research databases (N = 155; 57% female; 78 ± 8 years). Scoring criteria based on the Australian Dietary Guidelines and dietary recommendations for AMD in literature were developed and applied to dietary data from the FFQ and SDQ-AMD. Bland-Altman plot of difference suggests agreement between the FFQ and SDQ-AMD as most mean difference scores were within the 95% CI (6.91, -9.94), and no significant bias between the scores as the mean score increased ((regression equation: y = 0.11x - 2.60) (95% CI: -0.058, 0.275, p-value = 0.20)). Scores were also significantly correlated (0.57, p ≤ 0.0001). The SDQ-AMD shows potential as a diet screening tool for clinical use, however, additional studies are warranted to validate the SDQ-AMD.
Collapse
Affiliation(s)
- Diana Tang
- Centre for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2006, Australia; (D.T.); (P.M.); (G.L.); (G.B.)
| | - Paul Mitchell
- Centre for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2006, Australia; (D.T.); (P.M.); (G.L.); (G.B.)
| | - Gerald Liew
- Centre for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2006, Australia; (D.T.); (P.M.); (G.L.); (G.B.)
| | - George Burlutsky
- Centre for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2006, Australia; (D.T.); (P.M.); (G.L.); (G.B.)
| | - Victoria Flood
- Faculty of Health Sciences, University of Sydney, Sydney 2006, NSW 2151, Australia;
- Westmead Hospital, Western Sydney Local Health District, Westmead 2151, NSW 2151, Australia
| | - Bamini Gopinath
- Centre for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2006, Australia; (D.T.); (P.M.); (G.L.); (G.B.)
| |
Collapse
|
17
|
Chintalapudi SR, Wang X, Wang X, Shi Y, Kocak M, Palamoor M, Davis RN, Hollingsworth TJ, Jablonski MM. NA3 glycan: a potential therapy for retinal pigment epithelial deficiency. FEBS J 2019; 286:4876-4888. [PMID: 31322324 DOI: 10.1111/febs.15006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 05/07/2019] [Accepted: 07/16/2019] [Indexed: 12/01/2022]
Abstract
Atrophic age-related macular degeneration (AMD) is the most common type of AMD, yet there is no United States Food and Drug Administration (FDA)-approved therapy. This disease is characterized by retinal pigment epithelial (RPE) insufficiency, primarily in the macula, which affects the structure and physiology of photoreceptors and ultimately, visual function. In this study, we evaluated the protective effects of a naturally derived small molecule glycan therapeutic-asialo-, tri-antennary complex-type N-glycan (NA3)-in two distinct preclinical models of atrophic AMD. In RPE-deprived Xenopus laevis tadpole eyes, NA3 supported normal retinal ultrastructure. In RCS rats, NA3 supported fully functioning visual integrity. Furthermore, structural analyses revealed that NA3 prevented photoreceptor outer segment degeneration, pyknosis of the outer nuclear layer, and reactive gliosis of Müller cells (MCs). It also promoted maturation of adherens junctions between MC and photoreceptors. Our results demonstrate the neuroprotective effects of a naturally derived small molecular glycan therapeutic-NA3-in two unique preclinical models with RPE insufficiency. These data suggest that NA3 glycan therapy may provide a new therapeutic avenue in the prevention and/or treatment of retinal diseases such as atrophic AMD.
Collapse
Affiliation(s)
- Sumana R Chintalapudi
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - XiangDi Wang
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - XiaoFei Wang
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Yunfeng Shi
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mehmet Kocak
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mallika Palamoor
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Raven N Davis
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - T J Hollingsworth
- Neuroscience Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Monica M Jablonski
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
| |
Collapse
|
18
|
Brelén ME, Ng DS, Cheung CY. The Question of Prescribing Calcium Supplements to Patients at High Risk of Age-Related Macular Degeneration. JAMA Ophthalmol 2019; 137:550-551. [DOI: 10.1001/jamaophthalmol.2019.0291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Mårten E. Brelén
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Danny S. Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Carol Y. Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| |
Collapse
|
19
|
Consumption of eggs and the 15-year incidence of age-related macular degeneration. Clin Nutr 2019; 39:580-584. [PMID: 30914217 DOI: 10.1016/j.clnu.2019.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS A naturally rich source of lutein and zeaxanthin are eggs. There is scarce epidemiological data on the temporal association between total egg consumption and age-related macular degeneration (AMD) incidence. We aimed to establish the prospective and independent association between consumption of eggs with the incidence of AMD over a 15-year follow-up. METHODS In this population-based cohort study of 3,654 participants aged 49 + years examined at baseline, 2034 participants had complete information on baseline egg consumption and AMD signs over 15 years. AMD was determined from retinal photographs. Egg consumption was assessed using a semi-quantitative food-frequency questionnaire. Total egg intake was calculated through summing up intakes in all forms e.g. boiled, poached, fried, scrambled and/or omelette. We summarized total egg consumption into the following categories: ≤1 egg/week; 2-4 eggs/week; 5-6 eggs/week; and ≥1 egg/day. RESULTS At baseline, participants who consumed 2-4 eggs/week compared to those who consumed ≤1 egg/week (reference group) had reduced risk of incident late-stage AMD after 15 years: multivariable-adjusted odds ratio, OR, 0.51 (95% confidence intervals, CI, 0.28-0.92). Participants who consumed 2-4 eggs/week versus ≤1 egg/week at baseline had 62% reduced risk of developing neovascular AMD. Among those whose AMD onset was at or before the 10-year follow-up, consumption of 2-4 and 5-6 eggs/week was associated with 54% and 65% reduced risk of incident late AMD, respectively. When analyzed as a dichotomized variable, participants who consumed >1 egg/week versus ≤1 egg/week at baseline, had 46% reduced risk of developing late-stage AMD 15 years later: multivariable-adjusted OR 0.54 (95% CI 0.3-0.90). Non-significant associations were observed between egg consumption and incident early AMD. CONCLUSIONS Our findings suggest that moderate consumption of eggs significantly reduces the risk of developing incident late-stage AMD over 15 years.
Collapse
|
20
|
Tan ACS, Pilgrim MG, Fearn S, Bertazzo S, Tsolaki E, Morrell AP, Li M, Messinger JD, Dolz-Marco R, Lei J, Nittala MG, Sadda SR, Lengyel I, Freund KB, Curcio CA. Calcified nodules in retinal drusen are associated with disease progression in age-related macular degeneration. Sci Transl Med 2018; 10:eaat4544. [PMID: 30404862 PMCID: PMC10721335 DOI: 10.1126/scitranslmed.aat4544] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/10/2018] [Accepted: 10/17/2018] [Indexed: 12/17/2023]
Abstract
Drusen are lipid-, mineral-, and protein-containing extracellular deposits that accumulate between the basal lamina of the retinal pigment epithelium (RPE) and Bruch's membrane (BrM) of the human eye. They are a defining feature of age-related macular degeneration (AMD), a common sight-threatening disease of older adults. The appearance of heterogeneous internal reflectivity within drusen (HIRD) on optical coherence tomography (OCT) images has been suggested to indicate an increased risk of progression to advanced AMD. Here, in a cohort of patients with AMD and drusen, we show that HIRD indicated an increased risk of developing advanced AMD within 1 year. Using multimodal imaging in an independent cohort, we demonstrate that progression to AMD was associated with increasing degeneration of the RPE overlying HIRD. Morphological analysis of clinically imaged cadaveric human eye samples revealed that HIRD was formed by multilobular nodules. Nanoanalytical methods showed that nodules were composed of hydroxyapatite and that they differed from spherules and BrM plaques, other refractile features also found in the retinas of patients with AMD. These findings suggest that hydroxyapatite nodules may be indicators of progression to advanced AMD and that using multimodal clinical imaging to determine the composition of macular calcifications may help to direct therapeutic strategies and outcome measures in AMD.
Collapse
Affiliation(s)
- Anna C S Tan
- Vitreous Retina Macula Consultants of New York, New York, NY 10022, USA
- LuEsther T. Mertz Retinal Research Center, Manhattan, Eye, Ear and Throat Hospital, New York, NY 10075, USA
- Singapore National Eye Center/Singapore Eye Research Institute Singapore, Singapore 168751, Singapore
- Duke-NUS Singapore, Singapore 168751, Singapore
| | - Matthew G Pilgrim
- UCL Institute of Ophthalmology, 11-43 Bath Street, London EC1V 9EL, UK
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London WC1X 8LD, UK
| | - Sarah Fearn
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Sergio Bertazzo
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
| | - Elena Tsolaki
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
| | - Alexander P Morrell
- Material Physics, Aston University, Aston Express Way, Birmingham B4 7ET, UK
| | - Miaoling Li
- Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 32594-0019, USA
| | - Jeffrey D Messinger
- Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 32594-0019, USA
| | - Rosa Dolz-Marco
- Vitreous Retina Macula Consultants of New York, New York, NY 10022, USA
- LuEsther T. Mertz Retinal Research Center, Manhattan, Eye, Ear and Throat Hospital, New York, NY 10075, USA
| | - Jianqin Lei
- Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, CA 90033, USA
| | - Muneeswar G Nittala
- Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, CA 90033, USA
| | - Srinivas R Sadda
- Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, CA 90033, USA
- Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Imre Lengyel
- UCL Institute of Ophthalmology, 11-43 Bath Street, London EC1V 9EL, UK.
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast BT9 7BL, UK
| | - K Bailey Freund
- Vitreous Retina Macula Consultants of New York, New York, NY 10022, USA
- LuEsther T. Mertz Retinal Research Center, Manhattan, Eye, Ear and Throat Hospital, New York, NY 10075, USA
- Department of Ophthalmology, New York University Langone School of Medicine, New York, NY 10016, USA
| | - Christine A Curcio
- Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 32594-0019, USA
| |
Collapse
|
21
|
Gopinath B, Liew G, Kifley A, Flood VM, Joachim N, Lewis JR, Hodgson JM, Mitchell P. Dietary flavonoids and the prevalence and 15-y incidence of age-related macular degeneration. Am J Clin Nutr 2018; 108:381-387. [PMID: 29982448 DOI: 10.1093/ajcn/nqy114] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 05/01/2018] [Indexed: 11/14/2022] Open
Abstract
Background The majority of research performed to date has examined the effects of commonly known antioxidants such as vitamins C, E, and A and carotenoids on age-related macular degeneration (AMD) risk and progression. To date, there is limited research on promising phytochemicals with antioxidant and anti-inflammatory properties, including flavonoids. Objective In this exploratory study, we aimed to assess the independent associations between dietary intake of total flavonoids and common flavonoid classes with the prevalence and 15-y incidence of AMD. Design In this population-based cohort study, 2856 adults aged ≥49 y at baseline and 2037 followed up 15 y later were included in prevalence and incidence analyses, respectively. Dietary intake was assessed by using a semiquantitative food-frequency questionnaire (FFQ). Estimates of the flavonoid content of foods in the FFQ were assessed by using the USDA Flavonoid, Isoflavone, and Proanthocyanidin databases. AMD was assessed from retinal photographs. Results In cross-sectional analysis, each 1-SD increase in total overall flavonoid intake was associated with a reduced likelihood of any AMD (multivariable-adjusted OR: 0.76; 95% CI: 0.58, 0.99). Each 1-SD increase in dietary intake of total flavonols and total flavanones was associated with reduced odds of the prevalence of any AMD [multivariable-adjusted OR (95% CI): 0.75 (0.58, 0.97) and 0.77 (0.60, 0.99), respectively]. A marginally significant trend (P = 0.05) was observed between increasing the intake of total flavanone and hesperidin (from the first to the fourth quartile) and reduced likelihood of incident late AMD, after multivariable adjustment. Participants who reported ≥1 serving of oranges/d compared with those who never consumed oranges at baseline had a reduced risk of late AMD 15 y later (multivariable-adjusted OR: 0.39; 95% CI: 0.18, 0.85). Conclusions Our findings suggest an independent and protective association between dietary intake of flavonoids and the likelihood of having AMD. Additional prospective cohort studies are needed to validate these findings.
Collapse
Affiliation(s)
- Bamini Gopinath
- Center for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research
| | - Gerald Liew
- Center for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research
| | - Annette Kifley
- Center for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research
| | - Victoria M Flood
- Faculty of Health Sciences
- Westmead Hospital, Western Sydney Local Health District, Westmead, Australia
| | - Nichole Joachim
- Center for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research
| | - Joshua R Lewis
- Center for Kidney Research, Westmead, School of Public Health, University of Sydney, Sydney, Australia
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
- School of Medicine, University of Western Australia, Perth, Australia
| | - Jonathan M Hodgson
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
- School of Medicine, University of Western Australia, Perth, Australia
| | - Paul Mitchell
- Center for Vision Research, Department of Ophthalmology and Westmead Institute for Medical Research
| |
Collapse
|
22
|
Chapman NA, Jacobs RJ, Braakhuis AJ. Role of diet and food intake in age-related macular degeneration: a systematic review. Clin Exp Ophthalmol 2018; 47:106-127. [PMID: 29927057 DOI: 10.1111/ceo.13343] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/13/2018] [Indexed: 01/05/2023]
Abstract
A systematic literature review was conducted to evaluate the role of diet and food intake in age-related macular degeneration (AMD). Eighteen high-quality studies were identified. Adherence to a Mediterranean diet had decreased risk of AMD progression. An Oriental diet pattern had decreased association with AMD prevalence, whereas a Western diet pattern had increased association with AMD prevalence. High consumption of vegetables rich in carotenoids and fatty fish containing omega-3 fatty acids was beneficial for those at risk of AMD. Vegetable oils and animal fats containing omega-6 fatty acids, and red/processed meat should be consumed minimally to reduce the risk of AMD progression. High glycaemic index diets and alcohol consumption of greater than two drinks a day had increased association with AMD. As the quality of diet and food intake had a vital role in AMD, the provision of appropriate nutritional advice to those at risk of AMD is recommended.
Collapse
Affiliation(s)
- Naoko A Chapman
- School of Optometry and Vision Science, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Robert J Jacobs
- School of Optometry and Vision Science, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Andrea J Braakhuis
- Department of Nutrition, School of Medical Science, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| |
Collapse
|
23
|
Food groups and risk of age-related macular degeneration: a systematic review with meta-analysis. Eur J Nutr 2018; 58:2123-2143. [DOI: 10.1007/s00394-018-1771-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/28/2018] [Indexed: 01/10/2023]
|
24
|
Kim EK, Kim H, Vijayakumar A, Kwon O, Chang N. Associations between fruit and vegetable, and antioxidant nutrient intake and age-related macular degeneration by smoking status in elderly Korean men. Nutr J 2017; 16:77. [PMID: 29202844 PMCID: PMC5715512 DOI: 10.1186/s12937-017-0301-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/27/2017] [Indexed: 01/12/2023] Open
Abstract
Background Age-related macular degeneration (AMD) is one of the major causes of irreversible blindness. The objective of this study was to determine whether there is any relationship between dietary intake of fruits and vegetables (F&V) and antioxidant nutrients including carotenoids and AMD according to smoking status in elderly men. Methods We performed a cross-sectional analysis using nationally representative samples of elderly aged ≥ 65 years (n = 1414) from the Korea National Health and Nutrition Examination Survey (KNHANES, 2010–2012). Results The current smokers consumed less food in total, and, in particular, less cereals/potatoes/sugar products, fruits and vegetables than the nonsmokers and former smokers (p < 0.05). Intake of energy, thiamin, vitamin C, vitamin A, and β-carotene were significantly lower in the current smokers than in the nonsmokers and the former smokers. For current smokers, the ORs of the highest tertile compared with the lowest tertile were 0.36 (95% CI: 0.14–0.96, p for trend = 0.0576) for F&V, 0.32 (95% CI: 0.12–0.85, p for trend = 0.0561) for vitamin C, 0.23 (95% CI: 0.08–0.67, p for trend = 0.0038) for α-carotene, 0.13 (95% CI: 0.04–0.46, p for trend = 0.0003) for β-carotene after adjusting for confounding factors. In contrast, there was no association between antioxidant nutrient intake and AMD among the nonsmokers and former smokers. Conclusions These results suggest that increased consumption of fruits and vegetables containing antioxidant components such as vitamin C, α-carotene, and β-carotene may have a protective effect on AMD. These effects may be more evident among current smokers.
Collapse
Affiliation(s)
- Eun-Kyung Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Hyesook Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Aswathy Vijayakumar
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Oran Kwon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Namsoo Chang
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea.
| |
Collapse
|
25
|
Merle BMJ, Silver RE, Rosner B, Seddon JM. Associations Between Vitamin D Intake and Progression to Incident Advanced Age-Related Macular Degeneration. Invest Ophthalmol Vis Sci 2017; 58:4569-4578. [PMID: 28892825 PMCID: PMC5595226 DOI: 10.1167/iovs.17-21673] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Purpose There is growing evidence of the importance of nutrition in age-related macular degeneration (AMD), but no prospective studies have explored the impact of vitamin D. We evaluated the association between vitamin D intake and progression to advanced AMD. Methods Among 2146 participants (3965 eyes), 541 (777 eyes) progressed from early or intermediate AMD to advanced disease (mean follow-up: 9.4 years) based on ocular imaging. Nutrients were log transformed and calorie adjusted. Survival analysis was used to assess associations between incident advanced disease and vitamin D intake. Neovascular disease (NV) and geographic atrophy (GA) were evaluated separately. Combined effects of dietary vitamin D and calcium were assessed based on high or low consumption of each nutrient. Results There was a lower risk of progression to advanced AMD in the highest versus lowest quintile of dietary vitamin D intake after adjustment for demographic, behavioral, ocular, and nutritional factors (hazard ratio [HR]: 0.60; 95% confidence interval [CI]: 0.43–0.83; P trend = 0.0007). Similar results were observed for NV (HR: 0.59; 95% CI: 0.39–0.89; P trend = 0.005) but not GA (HR: 0.83; 95% CI: 0.53–1.30; P trend = 0.35). A protective effect was observed for advanced AMD among participants with high vitamin D and low calcium compared to the group with low levels for each nutrient (HR: 0.67; 95% CI: 0.50–0.88; P = 0.005). When supplement use was considered, the effect was in the protective direction but was not significant. Conclusions A diet rich in vitamin D may prevent or delay progression to advanced AMD, especially NV. Additional exploration is needed to elucidate the potential protective role of vitamin D and its contribution to reducing visual loss.
Collapse
Affiliation(s)
- Bénédicte M J Merle
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Lifelong Exposures, Health and Aging, Bordeaux, France
| | - Rachel E Silver
- Ophthalmic Epidemiology and Genetics Service, New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States
| | - Bernard Rosner
- Channing Division of Network Medicine, Harvard Medical School, Harvard University, Boston, Massachusetts, United States
| | - Johanna M Seddon
- Ophthalmic Epidemiology and Genetics Service, New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States.,Department of Ophthalmology, Tufts University School of Medicine, Boston, Massachusetts, United States.,Sackler School of Graduate Biomedical Sciences, and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, United States
| |
Collapse
|
26
|
Gopinath B, Harris DC, Flood VM, Burlutsky G, Mitchell P. Associations between dairy food consumption and chronic kidney disease in older adults. Sci Rep 2016; 6:39532. [PMID: 27996057 PMCID: PMC5171808 DOI: 10.1038/srep39532] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/23/2016] [Indexed: 12/27/2022] Open
Abstract
We aimed to assess the association between dairy product consumption and calcium intake with the prevalence and 10-year incidence of chronic kidney disease (CKD). 1185 participants aged ≥50 years at baseline were examined between 1992–4 and 2002–4. Dietary data were collected using a food frequency questionnaire, and servings of dairy food consumption were calculated. Baseline biochemistry including serum creatinine was measured. CKD was defined as Modification of Diet in Renal Disease Study estimated glomerular filtration rate <60 mL·min−1.1.73 m−2. Cross-sectional analysis showed that older adults in the highest quintile compared to the lowest quintile (reference group) of low/reduced fat dairy food consumption had reduced odds of CKD, multivariable-adjusted odds ratio, OR, 0.64 (95% confidence intervals, CI, 0.43–0.96). Increasing total intake of dietary calcium was associated with reduced odds of CKD (P-trend = 0.02); comparing highest versus lowest quintile: OR 0.62 (95% CI 0.42–0.92). Participants in the second versus first quintile of low/reduced fat dairy food consumption at baseline had 49% reduced risk of CKD 10 years later, OR 0.51 (95% CI 0.29–0.89). Higher consumption of low/reduced fat dairy foods was independently associated with lower risk of CKD. Additional population-based studies are warranted to confirm these findings.
Collapse
Affiliation(s)
- Bamini Gopinath
- Centre for Vision Research, The Westmead Institute for Medical Research, University of Sydney, NSW, Australia
| | - David C Harris
- Centre for Transplantation and Renal Research, The Westmead Institute for Medical Research, University of Sydney, NSW, Australia
| | - Victoria M Flood
- Faculty of Health Sciences, University of Sydney and St Vincent's Hospital, Australia
| | - George Burlutsky
- Centre for Vision Research, The Westmead Institute for Medical Research, University of Sydney, NSW, Australia
| | - Paul Mitchell
- Centre for Vision Research, The Westmead Institute for Medical Research, University of Sydney, NSW, Australia
| |
Collapse
|
27
|
Pearman ME, Tanaka H. Dairy: A lower percent investment in the volatile hypertensive environment. World J Hypertens 2015; 5:104-106. [DOI: 10.5494/wjh.v5.i3.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/01/2015] [Accepted: 07/08/2015] [Indexed: 02/06/2023] Open
Abstract
In cross-sectional and intervention studies, low-fat dairy has proven to be effective in lowering blood pressure in a hypertensive population. Contributing mechanisms include the angiotensin-converting enzyme-inhibiting effects of peptides and possible interplay between calcium and vitamin D. Easily added to the diet, low-fat dairy is an attractive addition to nutritional, lifestyle, and pharmacological interventions to treat hypertension.
Collapse
|