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Wei L, Li M, Zhang Y, Zhang Q. The role of Ca 2+ in the improvement of phosphate adsorption in natural waters: Establishing an environmentally friendly La/Ca bimetallic organic framework. ENVIRONMENTAL RESEARCH 2023; 219:115126. [PMID: 36549486 DOI: 10.1016/j.envres.2022.115126] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/12/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Modified metal-organic framework (MOF) materials are promising adsorbents for phosphate removal in aquatic environment. Herein, a high-efficiency and eco-friendly La/Ca composite (La/Ca-BTC) was designed by calcining La/Ca MOFs for phosphate adsorption. Batch adsorption experiments showed that La/Ca-BTC-3/1 (La: Ca molar ratio of 3: 1) had an excellent phosphate sorption capacity of 101.01 mg P/g, and could also maintain relatively high adsorption in the range of pH 4-8. Anion coexistence experiments showed that, except for carbonate ions, common anions have little effect on adsorption. X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR) analysis indicated that oxygen vacancies formed in the La/Ca-BTC, probably by metal doping. The density functional theory (DFT) calculation showed that oxygen vacancies could affect the orbital hybridization energy during phosphate adsorption by changing the state density, reducing the bond energy barrier for phosphate adsorption, thereby enhancing the adsorption effect of La/Ca-BTC. Phosphate adsorbents generally incur severe environmental risk by their gradual release of metal ions due to changes in water quality, especially where there is high natural organic matter (NOM). The DFT calculation further demonstrated that Ca2+ in the La/Ca-BTC was more inclined to combine with humic acid (HA) than La3+. Therefore, due to the introduction of Ca2+, La/Ca-BTC exhibited lower La-release in the presence of HA than La-BTC, which could be reduced by about 52.04%. Furthermore, La/Ca-BTC had the potential to simultaneously remove NOM which has important implication for aquatic remediation. These results are of great significance for the development of environmentally friendly phosphate adsorbents.
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Affiliation(s)
- Linghui Wei
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Meng Li
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China; Shenzhen Research Institute of Wuhan University of Technology, Shenzhen, 518000, China
| | - Yibo Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Qian Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China; Shenzhen Research Institute of Wuhan University of Technology, Shenzhen, 518000, China.
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Dang LT, Luong TC, Nguyen DH, Hoang TA, Nguyen HT, Nguyen HC, Duong TH, Tran TT, Pham LV, Ngo TV, Nguyen HT, Trieu NT, Do TV, Trinh MV, Ha TH, Phan DT, Do BN, Yang SH, Wang TJ, Duong TV. The Associations of Suspected COVID-19 Symptoms with Anxiety and Depression as Modified by Hemodialysis Dietary Knowledge: A Multi-Dialysis Center Study. Nutrients 2022; 14:nu14122364. [PMID: 35745093 PMCID: PMC9230868 DOI: 10.3390/nu14122364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/22/2022] [Accepted: 06/02/2022] [Indexed: 02/06/2023] Open
Abstract
During the COVID-19 pandemic, it is essential to evaluate hemodialysis patients’ dietary knowledge, especially among those with COVID-19 related symptoms, in order to identify appropriate strategies in managing their mental health. The study’s purposes were to test the psychometric properties of the hemodialysis dietary knowledge (HDK) scale, and to investigate the modifying impact of HDK on the associations of suspected COVID-19 symptoms (S-COVID-19-S) with anxiety and depression among hemodialysis patients. A cross-sectional study was conducted from July 2020 to March 2021 at eight hospitals across Vietnam. Data of 875 hemodialysis patients were analyzed, including socio-demographic, anxiety (the generalized anxiety disorder scale, GAD-7), depression (the patient health questionnaire, PHQ-9), S-COVID-19-S, HDK, health literacy, and digital healthy diet literacy. Confirmatory factor analysis (CFA) and logistic regression models were used to analyze the data. The HDK scale demonstrates the satisfactory construct validity with good model fit (Goodness of Fit Index, GFI = 0.96; Adjusted Goodness of Fit Index, AGFI = 0.90; Standardized Root Mean Square Residual, SRMR = 0.05; Root Mean Square Error of Approximation, RMSEA = 0.09; Normed Fit Index, NFI = 0.96; Comparative Fit Index, CFI = 0.96, and Parsimony goodness of Fit Index, PGFI = 0.43), criterion validity (as correlated with HL (r = 0.22, p < 0.01) and DDL (r = 0.19, p < 0.01), and reliability (Cronbach alpha = 0.70)). In the multivariate analysis, S-COVID-19-S was associated with a higher likelihood of anxiety (odds ratio, OR, 20.76; 95% confidence interval, 95%CI, 8.85, 48.70; p < 0.001) and depression (OR, 12.95; 95%CI, 6.67, 25.14, p < 0.001). A higher HDK score was associated with a lower likelihood of anxiety (OR, 0.70; 95%CI, 0.64, 0.77; p < 0.001) and depression (OR, 0.72; 95%CI, 0.66, 0.79; p < 0.001). In the interaction analysis, the negative impacts of S-COVID-19-S on anxiety and depression were mitigated by higher HDK scores (p < 0.001). In conclusion, HDK is a valid and reliable tool to measure dietary knowledge in hemodialysis patients. Higher HDK scores potentially protect patients with S-COVID-19-S from anxiety and depression during the pandemic.
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Affiliation(s)
- Loan T. Dang
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 112-19, Taiwan;
- Faculty of Nursing and Midwifery, Hanoi Medical University, Hanoi 115-20, Vietnam
| | - Thuc C. Luong
- Director Office, Military Hospital 103, Hanoi 121-08, Vietnam;
- Department of Cardiology, Cardiovascular Center, Military Hospital 103, Hanoi 121-08, Vietnam
| | - Dung H. Nguyen
- Hemodialysis Department, Nephro-Urology-Dialysis Center, Bach Mai Hospital, Hanoi 115-19, Vietnam; (D.H.N.); (T.A.H.)
| | - Trung A. Hoang
- Hemodialysis Department, Nephro-Urology-Dialysis Center, Bach Mai Hospital, Hanoi 115-19, Vietnam; (D.H.N.); (T.A.H.)
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110-31, Taiwan;
| | - Hoai T. Nguyen
- Division of Military Scientific Information, Vietnam Military Medical University, Hanoi 121-08, Vietnam;
| | - Hoang C. Nguyen
- Director Office, Thai Nguyen National Hospital, Thai Nguyen 241-24, Vietnam; (H.C.N.); (T.H.D.)
- President Office, Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen 241-17, Vietnam
| | - Thai H. Duong
- Director Office, Thai Nguyen National Hospital, Thai Nguyen 241-24, Vietnam; (H.C.N.); (T.H.D.)
- Department of Internal Medicine, Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen 241-17, Vietnam
| | - Tu T. Tran
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110-31, Taiwan;
- Department of Internal Medicine, Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen 241-17, Vietnam
| | - Linh V. Pham
- Department of Pulmonary & Cardiovascular Diseases, Hai Phong University of Medicine and Pharmacy Hospital, Hai Phong 042-12, Vietnam;
| | - Tuan V. Ngo
- Department of Hemodialysis, Hai Phong University of Medicine and Pharmacy Hospital, Hai Phong 042-12, Vietnam;
| | - Hoi T. Nguyen
- Director Office, Hai Phong International Hospital, Hai Phong 047-08, Vietnam;
| | - Nga T. Trieu
- Hemodialysis Division, Hai Phong International Hospital, Hai Phong 047-08, Vietnam;
| | - Thinh V. Do
- Director Office, Bai Chay Hospital, Ha Long 011-21, Vietnam;
| | - Manh V. Trinh
- Director Office, Quang Ninh General Hospital, Ha Long 011-08, Vietnam;
| | - Tung H. Ha
- Director Office, General Hospital of Agricultural, Hanoi 125-16, Vietnam;
| | - Dung T. Phan
- Faculty of Nursing, Hanoi University of Business and Technology, Hanoi 116-22, Vietnam;
- Nursing Office, Thien An Obstetrics and Gynecology Hospital, Hanoi 112-06, Vietnam
| | - Binh N. Do
- Department of Infectious Diseases, Vietnam Military Medical University, Hanoi 121-08, Vietnam;
- Division of Military Science, Military Hospital 103, Hanoi 121-08, Vietnam
| | - Shwu-Huey Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110-31, Taiwan;
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 110-31, Taiwan
- Research Center of Geriatric Nutrition, Taipei Medical University, Taipei 110-31, Taiwan
| | - Tsae-Jyy Wang
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 112-19, Taiwan;
- Correspondence: (T.-J.W.); (T.V.D.); Tel.: +886-2-2822-7101 (ext. 3118) (T.-J.W.); +886-2-2736-1661 (ext. 6545) (T.V.D.)
| | - Tuyen Van Duong
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110-31, Taiwan;
- Correspondence: (T.-J.W.); (T.V.D.); Tel.: +886-2-2822-7101 (ext. 3118) (T.-J.W.); +886-2-2736-1661 (ext. 6545) (T.V.D.)
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Jimenez EY, Kelley K, Schofield M, Brommage D, Steiber A, Abram JK, Kramer H. Medical Nutrition Therapy Access in CKD: A Cross-sectional Survey of Patients and Providers. Kidney Med 2021; 3:31-41.e1. [PMID: 33604538 PMCID: PMC7873758 DOI: 10.1016/j.xkme.2020.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
RATIONALE & OBJECTIVE Nutrition management can slow the progression of chronic kidney disease (CKD) and help manage complications of CKD, but few individuals with CKD receive medical nutrition therapy before initiating dialysis. This study aimed to identify knowledge, attitudes, experiences, and practices regarding medical nutrition therapy and barriers and facilitators to medical nutrition therapy access for individuals with CKD stages G1-G5 from the perspective of patients and providers. STUDY DESIGN Cross-sectional study composed of anonymous surveys. SETTING & POPULATION Adults with CKD stages G1-G5 and medical providers and registered dietitian nutritionists who regularly see patients with CKD stages G1-G5 were recruited by email using National Kidney Foundation and Academy of Nutrition and Dietetics databases and through the National Kidney Foundation 2019 Spring Clinical Meetings mobile app. ANALYTICAL APPROACH Descriptive analyses and Fisher exact tests were conducted with Stata SE 16. RESULTS Respondents included 348 patients, 66 registered dietitian nutritionists, and 30 medical providers. In general, patients and providers had positive perceptions of medical nutrition therapy and its potential to slow CKD progression and manage complications, and most patients reported interest in a medical nutrition therapy referral. However, there were feasibility concerns related to cost to the patient, lack of insurance coverage, and lack of renal registered dietitian nutritionists. There was low awareness of Medicare no-cost share coverage for medical nutrition therapy across patients and providers. About half the practices did not bill for medical nutrition therapy and those that did reported issues with being paid and low reimbursement rates. LIMITATIONS Results may not be generalizable due to the small number of respondents and the potential for self-selection, nonresponse, and social desirability bias. CONCLUSIONS Many patients with CKD stages G1-G5 are interested in medical nutrition therapy and confident that it can help with disease management, but there are feasibility concerns related to cost to the patient, insurance coverage, and reimbursement. There are significant opportunities to design and test interventions to facilitate medical nutrition therapy access for patients with CKD stages G1-G5.
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Affiliation(s)
- Elizabeth Yakes Jimenez
- Nutrition Research Network, Research, International, and Scientific Affairs, Academy of Nutrition and Dietetics, Chicago, IL
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, NM
- Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM
- College of Population Health, University of New Mexico Health Sciences Center, Albuquerque, NM
| | - Kathryn Kelley
- Nutrition Research Network, Research, International, and Scientific Affairs, Academy of Nutrition and Dietetics, Chicago, IL
| | - Marsha Schofield
- Governance and Nutrition Services Coverage, Academy of Nutrition and Dietetics, Chicago, IL
| | | | - Alison Steiber
- Nutrition Research Network, Research, International, and Scientific Affairs, Academy of Nutrition and Dietetics, Chicago, IL
| | - Jenica K. Abram
- Nutrition Research Network, Research, International, and Scientific Affairs, Academy of Nutrition and Dietetics, Chicago, IL
| | - Holly Kramer
- Division of Nephrology and Hypertension, Department of Public Health Sciences and Medicine, Loyola University Medical Center, Maywood, IL
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Lim JH, Chinna K, Khosla P, Karupaiah T, Daud ZAM. Understanding How Nutrition Literacy Links to Dietary Adherence in Patients Undergoing Maintenance Hemodialysis: A Theoretical Exploration Using Partial Least Squares Structural Equation Modeling. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17207479. [PMID: 33066603 PMCID: PMC7602379 DOI: 10.3390/ijerph17207479] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 11/16/2022]
Abstract
Dietary non-adherence is pervasive in the hemodialysis (HD) population. Health literacy is a plausible predictor of dietary adherence in HD patients, but its putative mechanism is scarcely studied. Thus, this study aimed to establish the causal model linking nutrition literacy to dietary adherence in the HD population. This was a multi-centre, cross-sectional study, involving 218 randomly selected multi-ethnic HD patients from nine dialysis centres in Klang Valley, Malaysia. Dietary adherence and self-management skills were assessed using validated End-Stage Renal Disease Adherence Questionnaire and Perceived Kidney/Dialysis Self-Management Scale, respectively. Validated self-developed scales were used to gauge nutrition literacy, dietary knowledge and Health Belief Model constructs. Relationships between variables were examined by multiple linear regressions and partial least squares structural equation modeling. Limited nutrition literacy was evident in 46.3% of the HD patients, associated with older age, lower education level, and shorter dialysis vintage. Dietary adherence rate was at 34.9%. Nutrition literacy (β = 0.390, p < 0.001) was an independent predictor of dietary adherence, mediated by self-efficacy (SIE = 0.186, BC 95% CI 0.110-0.280) and self-management skills (SIE = 0.192, BC 95% CI 0.103-0.304). Thus, nutrition literacy-enhancing strategies targeting self-efficacy and self-management skills should be considered to enhance dietary adherence in the HD population.
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Affiliation(s)
- Jun-Hao Lim
- Department of Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Malaysia;
| | - Karuthan Chinna
- School of Medicine, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya 47500, Malaysia;
| | - Pramod Khosla
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202-0340, USA;
| | - Tilakavati Karupaiah
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya 47500, Malaysia;
| | - Zulfitri Azuan Mat Daud
- Department of Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Malaysia;
- Research Center of Excellent (RCoE) Nutrition and Non-communicable Diseases, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence: ; Tel.: +60-397-692-431
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Ng ESY, Wong PY, Kamaruddin ATH, Lim CTS, Chan YM. Poor Sleep Quality, Depression and Social Support Are Determinants of Serum Phosphate Level among Hemodialysis Patients in Malaysia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5144. [PMID: 32708766 PMCID: PMC7400380 DOI: 10.3390/ijerph17145144] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 12/30/2022]
Abstract
Despite optimal control of serum phosphate level being imperative to avoid undesirable health outcomes, hyperphosphataemia is a highly prevalent mineral abnormality among the dialysis population. This study aimed to determine factors associated with hyperphosphatemia among hemodialysis patients in Malaysia. Multiple linear regression analysis was used to ascertain the possible factors that influence serum phosphate levels. A total of 217 hemodialysis patients were recruited. Hyperphosphatemia was prevalent. Only approximately 25% of the patients were aware that optimal control of hyperphosphatemia requires the combined effort of phosphate binder medication therapy, dietary restriction, and dialysis prescription. The presence of diabetes mellitus may affect serum phosphate levels, complicating dietary phosphorus management. Patients who were less depressive portrayed higher serum phosphate levels, implying intentional non-compliance. Better compliance on phosphate binder, longer sleep duration, and higher social support was associated with a lower level of serum phosphate. Despite sleep disturbance being one of the most prevalent and intense symptom burdens identified by hemodialysis patients, relatively few studies have addressed this issue. It is time to formulate sleep therapeutic interventions besides the encouragement of strong social support, hoping which many clinical outcomes including hyperphosphatemia can be better controlled among hemodialysis patients.
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Affiliation(s)
- Eileen Suk Ying Ng
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (E.S.Y.N.); (P.Y.W.); (A.T.H.K.)
| | - Poh Yoong Wong
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (E.S.Y.N.); (P.Y.W.); (A.T.H.K.)
| | - Ahmad Teguh Hakiki Kamaruddin
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (E.S.Y.N.); (P.Y.W.); (A.T.H.K.)
| | - Christopher Thiam Seong Lim
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
| | - Yoke Mun Chan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (E.S.Y.N.); (P.Y.W.); (A.T.H.K.)
- Research Center of Excellence, Nutrition and Non Communicable Diseases, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang 43400, Malaysia
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