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Channarong P, Phongamwong C. Prevalence and risk factors of vitamin D deficiency among patients with chronic myofascial pain syndrome: a cross-sectional study. BMC Nutr 2023; 9:129. [PMID: 37964354 PMCID: PMC10647172 DOI: 10.1186/s40795-023-00792-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 11/10/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Myofascial pain syndrome (MPS) is a common muscle condition characterized by painful trigger points. Vitamin D deficiency has been recognized as a precipitating factor of MPS. The present study aimed to determine the prevalence and risk factors of vitamin D deficiency in patients with chronic MPS. METHODS A cross-sectional study was conducted, using a structured face-to-face interview to collect demographic information, clinical characteristics, pain duration and location, as well as the bodily pain subscale of SF36 and EQ-5D-5 L. The Elecsys vitamin D total II assay was used to measure serum total 25-hydroxyvitamin D level. RESULTS Of 120 participants, vitamin D insufficiency (20 to 29.9 ng/ml) and deficiency (< 20 ng/ml) were 47.5% (95% CI: 38.3-56.8%) and 34.2% (95% CI: 25.8-43.4%), respectively. The adjusted odds ratios for vitamin D deficiency of participants aged < 45 years and who reported having ≤ 15 min sunlight exposure per day were 3.5 (95% CI: 1.54 to 7.98) and 2.38 (95% CI: 1.05 to 5.26), respectively. The bodily pain score (r = - 0.02, P = 0.86) and EQ-5D-5 L utility (r = 0.04, P = 0.66) did not significantly correlate with vitamin D levels. CONCLUSION Approximately one third of patients with chronic MPS had vitamin D deficiency. Age < 45 years and sunlight exposure ≤ 15 min/day were identified as potential risk factors for vitamin D deficiency in MPS patients.
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Affiliation(s)
- Pimpitcha Channarong
- Department of Rehabilitation Medicine, Phramongkutklao Hospital, Phramongkutklao College of Medicine, Bangkok, Thailand
| | - Chanwit Phongamwong
- Department of Rehabilitation Medicine, Phramongkutklao Hospital, Phramongkutklao College of Medicine, Bangkok, Thailand.
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Pilkey NG, Novosel O, Roy A, Wilson TE, Sharma J, Khan S, Kapuria S, Adams MA, Holden RM. Does Native Vitamin D Supplementation Have Pleiotropic Effects in Patients with End-Stage Kidney Disease? A Systematic Review of Randomized Trials. Nutrients 2023; 15:3072. [PMID: 37447398 DOI: 10.3390/nu15133072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/29/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Vitamin D has been shown to have multiple pleiotropic effects beyond bone and mineral metabolism, with purported roles in cardiovascular disease, cancer, and host immunity. Vitamin D deficiency is common in patients with end-stage kidney disease (ESKD); however, current clinical practice has favored the use of the active hormone. Whether vitamin D deficiency should be corrected in patients with ESKD remains unclear, as few randomized trials have been conducted. In this systematic review, we summarize the current evidence examining whether vitamin D supplementation improves outcomes, beyond mineral metabolism, in patients with ESKD. Data from randomized controlled trials of adults with ESKD were obtained by searching Ovid MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, and the Web of Science Core Collection from inception to February 2023. Twenty-three trials composed of 2489 participants were identified for inclusion. Data were synthesized by two independent reviewers and summarized in tables organized by outcome. Outcomes included measures of mortality, cardiovascular disease, inflammation, muscle strength/function, nutrition, patient well-being, and outcomes specific to ESKD including erythropoietin usage, pruritus, and dialysis access maturation. The Cochrane risk of Bias Tool (RoB 2, 2019) was used to assess study quality. Overall, our findings indicate a minimal and varied benefit of native vitamin D supplementation. From the largest studies included, we determine that vitamin D has no demonstrated effect on patient-reported measures of well-being or utilization of erythropoietin, nor does it change levels of the inflammation biomarker C-reactive protein. Included trials were heterogeneous with regards to outcomes, and the majority studied small participant populations with a relatively short follow-up. We conclude that vitamin D supplementation corrects vitamin D deficiency and is safe and well-tolerated in humans with ESKD. However, it is not clear from clinical trials conducted to date that a causal pathway exists between 25(OH)D and pleiotropic effects that is responsive to vitamin D treatment.
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Affiliation(s)
- Nathan G Pilkey
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Olivia Novosel
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Angélique Roy
- Bracken Health Sciences Library, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Tristin E Wilson
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Jaya Sharma
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Sono Khan
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Sanjana Kapuria
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Michael A Adams
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Rachel M Holden
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
- Department of Medicine, Queen's University, Kingston, ON K7L 3N6, Canada
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Hypovitaminosis D and its relationship with nutritional status and quality of life in patients undergoing haemodialysis. NUTR HOSP 2023; 40:144-150. [PMID: 36602123 DOI: 10.20960/nh.04150] [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: 12/24/2022] Open
Abstract
Introduction Objective: to assess the prevalence of hypovitaminosis D in patients undergoing haemodialysis (HD) and to determine its relationship with nutritional status and quality of life (QoL). Material and methods: 120 patients were included in the study. The Malnutrition-Inflammation Score (MIS) was used to detect nutritional risk. QoL was evaluated by Kidney Disease Quality of Life version 1.2 (KDQOL-SF). Patients were stratified into three groups according to their vitamin D status: sufficiency (≥ 30 ng/dl), insufficiency (29-10 ng/dl) and deficiency (< 10 ng/dl). Results: hypovitaminosis D was detected in 71 % of the patients studied. Multiple linear regression analysis showed that vitamin-D deficiency was the most significant predictor of low KDQOL-SF scores. It explained 21 % of the variance in the Kidney Disease Component Summary, 27 % of that in the Physical Component Summary, and 22 % of that in the Mental Component Summary. Multiple logistic regression analysis showed that only vitamin-D deficiency was significantly associated with malnutrition (OR, 14.6, p < 0.001). Conclusion: HD patients frequently present with hypovitaminosis D. There is a significant correlation between vitamin-D deficiency, poorer nutritional status, and worse QoL in dialysed patients.
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Ishtawi S, Jomaa D, Nizar A, Abdalla M, Hamdan Z, Nazzal Z. Vitamin D level, pain severity and quality of life among hemodialysis patients: a cross-sectional study. Sci Rep 2023; 13:1182. [PMID: 36681707 PMCID: PMC9867695 DOI: 10.1038/s41598-022-25793-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 12/05/2022] [Indexed: 01/22/2023] Open
Abstract
This cross-sectional study aims to find the prevalence of chronic pain and its correlation with the quality of life and vitamin D levels among hemodialysis patients in Palestine. We used the brief pain inventory, the medical outcomes study 36-item short-form health survey, and Serum 25-hydroxyvitamin D to assess chronic pain, quality of life, and vitamin D levels, respectively. The study included 200 patients, 38.1% (95% confidence interval 31.3-45.4%) of whom had chronic pain, and 77.7% (95% confidence interval 71.0-83.4%) had deficient Vitamin D levels. Quality of life scores were generally low, with the lowest in role emotional and physical functioning. Sex, comorbidities, and vitamin D level significantly correlate with pain severity. Employment, number of comorbidities, pain severity, and albumin level are significantly associated with the Physical component of quality of life. On the other hand, employment and pain severity are significantly related to the mental component of quality of life. In conclusion, low vitamin D levels, chronic pain, and low quality of life scores are common among hemodialysis patients. In addition, vitamin D is negatively correlated with pain severity. Therefore, healthcare workers should assess and manage hemodialysis patients' chronic pain to improve their quality of life and reduce suffering.
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Affiliation(s)
- Shaima Ishtawi
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Dana Jomaa
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Aisha Nizar
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Mazen Abdalla
- Department of Orthopedics, An-Najah National University Hospital, Nablus, Palestine
| | - Zakaria Hamdan
- Internal Medicine Department, An-Najah National University Hospital, Box 7,707, Nablus, Palestine.
| | - Zaher Nazzal
- Department of Medicine, Faculty of Medicine, An-Najah National University, Box 7,707, Nablus, Palestine.
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Al-Daghri NM, Alfawaz HA, Khan N, Saadawy GM, Sabico S. Vitamin D Knowledge and Awareness Is Associated with Physical Activity among Adults: A Cross-Sectional Survey. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1601. [PMID: 36674356 PMCID: PMC9867161 DOI: 10.3390/ijerph20021601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 06/17/2023]
Abstract
The relation between knowledge and awareness of vitamin D (VD) and physical activity in adults has not been well studied. The present cross-sectional study aims to demonstrate this relation among adults living in Saudi Arabia. A total of 774 adults participated and were stratified based on self-reports of whether they were physically active (PA group, N = 562) or not (non-PA, N = 212). The prevalence of VD awareness and its health effects were significantly higher in the PA group compared with their counterparts (97 vs. 93.4%; p = 0.02 and 92.3 vs. 81.6%; p < 0.001, respectively). Sunlight was the preferred overall source of VD among the PA group (91.1%) followed by food, supplements, and fortified foods. Sardine, salmon, oily fish (63.7%) and eggs (54.6%) were reported as good dietary sources. Other positive attitudes, represented by taking supplement or multivitamins (51.2%), high sun exposure (33.1%), and daily duration of exposure to sunlight (15−30 min; 53.4%) were higher in the PA than the non-PA group (p values < 0.05). The body parts exposed to the sun among the PA group were arms (67.1%), hands (64.1%), face and hands (62.5%), legs (58.5%), and face (53.2%), while sunscreen cream (47.2%) was their preferred sun-protection method. High levels of knowledge and positive attitudes were reported by the PA group compared with the non-PA group in regard to walking outdoors for sun exposure (80.6 vs. 62.7%; p < 0.001). Information about good dietary sources, the role of VD in human health, associated diseases, positive attitudes to sun exposure, and the use of supplements or multivitamins were among the determinants of VD knowledge and awareness. In conclusion, VD knowledge and awareness are positively associated with self-reported physical activity in adults. Further objective classifications of PA may strengthen the results of the present investigation.
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Affiliation(s)
| | - Hanan A. Alfawaz
- Biochemistry Department, King Saud University, Riyadh 11451, Saudi Arabia
- Department of Food Science & Nutrition, College of Food & Agriculture Science, King Saud University, Riyadh 11495, Saudi Arabia
| | - Nasiruddin Khan
- Department of Food Science and Human Nutrition, College of Applied and Health Sciences, A’Sharqiyah University, Ibra 400, Oman
| | - Gamal M. Saadawy
- Biochemistry Department, King Saud University, Riyadh 11451, Saudi Arabia
| | - Shaun Sabico
- Biochemistry Department, King Saud University, Riyadh 11451, Saudi Arabia
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de Souza ACCB, de Oliveira MCNI, de Lemos GN, da Silva ER, de Souza ÍJA, da Silva WM, de Alcântara AL, Said NM, de Moraes LV, Neto JFA, Dos Passos SR, Monteiro ÁAA, de Queiroz NNM, de Melo FTC, Felício KM, de Souza D'Albuquerque Silva L, Gomes DL, Mourão NAL, Piani PPF, Lobato IJC, Felício JS. Health-related quality of life in T1DM patients after high-dose cholecalciferol supplementation: data from a pilot clinical trial. Diabetol Metab Syndr 2022; 14:46. [PMID: 35346321 PMCID: PMC8959789 DOI: 10.1186/s13098-022-00817-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Type 1 Diabetes Mellitus (T1DM) impacts health-related quality of life (HRQoL). Cross-sectional studies suggest that low levels of vitamin D (VD) may impair HRQoL, however, the effect of VD supplementation on quality of life in T1DM patients has not yet been clarified. Our study evaluated the effects of high-dose VD supplementation on HRQoL in T1DM. METHODS We performed a prospective study with 64 patients receiving cholecalciferol (4000 IU/day for patients with 25-OH-vitamin D [25(OH)D] between 30 and 60 ng/mL, and 10,000 IU/day for those with 25(OH)D below 30 ng/mL) for 12 weeks, as part of a research protocol. HRQoL was assessed with EuroQol instruments (EQ-5D and EQ-VAS). RESULTS There was an improvement in global EQ-5D index, and analysing specifically the EQ-5D domains, we observed an improvement in mobility (1.3 ± 0.6 versus 1.1 ± 0.3, p < 0.01). Evaluating possible outcome influencing variables, we detected a reduction in albuminuria at the end of the trial, without changes in BMI, lipids, blood pressure, glycemic control and insulin doses. We found correlations between final albuminuria and the dimensions: mobility (r = 0.6; p < 0.01), personal care (r = 0.7; p < 0.01), pain and discomfort (r = 0.6; p < 0.01) and habitual activities (r = 0.6; p < 0.01), suggesting an association between albuminuria reduction and the impact of VD supplementation on HRQoL. CONCLUSION Our data showed that high doses of cholecalciferol supplementation can improve HRQoL in patients with T1DM, and the reduction of albuminuria seems to be an important factor in this context. TRIAL REGISTRATION (ISRCTN32601947), 03/06/2017 retrospectively registered.
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Affiliation(s)
- Ana Carolina Contente Braga de Souza
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Maria Clara Neres Iunes de Oliveira
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Gabriela Nascimento de Lemos
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Emanuele Rocha da Silva
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Ícaro José Araújo de Souza
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Wanderson Maia da Silva
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Angélica Leite de Alcântara
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Nivin Mazen Said
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Lorena Vilhena de Moraes
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - João Felício Abrahão Neto
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Simone Rodrigues Dos Passos
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Ádria Aline Alves Monteiro
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Natércia Neves Marques de Queiroz
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Franciane Trindade Cunha de Melo
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Karem Miléo Felício
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Lilian de Souza D'Albuquerque Silva
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Daniela Lopes Gomes
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Neyla Arroyo Lara Mourão
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Pedro Paulo Freire Piani
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - Isabel Jane Campos Lobato
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil
| | - João Soares Felício
- Endocrinology Division, University Hospital João de Barros Barreto, Federal University of Pará, Mundurucus Street, 4487, Guamá, Belém, Pará, 66073-000, Brazil.
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Yuksel E, Aydin E. The relationship between serum vitamin D levels and health-related quality of life in peritoneal dialysis patients. Int Urol Nephrol 2021; 54:927-936. [PMID: 34292490 DOI: 10.1007/s11255-021-02951-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION We aimed to investigate the relationship between Vitamin D level and quality of life in patients undergoing peritoneal dialysis as renal replacement therapy. METHODS 50 peritoneal dialysis patients aged between 18 and 73 years were included in this study. KDQOL-36 questionnaire was applied to rate the quality of life of the patients. This questionnaire consisted of 36 questions divided into five subscales. The patients were divided into two groups according to serum vitamin D levels. Patients with a serum 25(OH) D level < 20 ng/mL were identified as vitamin D deficiency group and those with a serum 25(OH)D level ≥ 20 ng/mL were identified as normal vitamin D group. RESULTS The patients had a mean age of 41.16 ± 16.05 years, 56% of them were females. The mean 25(OH) D levels of patients with 25 (OH) D levels < 20 ng/mL and those with ≥ 20 ng/mL were 10.50 ± 4.62 ng/mL and 25.55 ± 4.11 ng/mL, respectively. We found that all subscales of KDQOL-36 were lower with statistically significance in the group with Vitamin D (Vit-D) deficiency. Hemoglobin level was detected as independent risk factor for Symptom and problem list subscales and SF-12 physical component summary subscale (PCS) (P = 0.029, P = 0.047). Vit-D deficiency was detected as independent risk factors for kidney disease burden subscale and PCS (P = 0.035, P = 0.019). Hypertension was detected as independent risk factor for kidney disease burden subscale (P = 0.015). CONCLUSION Our study is the first to investigate the relationship between serum Vit-D level and quality of life by KDQOL-36 scale in peritoneal dialysis patients. We revealed that patients with low Vit-D levels had worse quality of life in all subscales.
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Affiliation(s)
- Enver Yuksel
- Department of Nephrology, Gazi Yasargil Training and Research Hospital, Diyarbakır, Turkey.
| | - Emre Aydin
- School of Medicine, Department of Nephrology, University of Dicle, Diyarbakır, Turkey
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Aghamohammadzadeh N, Dolatkhah N, Hashemian M, Shakouri SK, Hasanpour S. The relationship between serum 25-hydroxy vitamin D and blood pressure and quality of life in overweight and obese patients with type 2 diabetes mellitus compared with healthy subjects. CASPIAN JOURNAL OF INTERNAL MEDICINE 2020; 11:267-277. [PMID: 32874433 PMCID: PMC7442463 DOI: 10.22088/cjim.11.3.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background: Vitamin D is one of the known lipoprotein hormones with metabolic properties. We aimed to determine the serum 25-hydroxy vitamin D concentration in overweight/obese subjects with diabetes mellitus type Ⅱ (DM Ⅱ) in association with systolic and diastolic blood pressure and quality of life compared with healthy participants. Methods: The current case-control study was carried out among 80 overweight/obese subjects with DM Ⅱ, and 77 healthy subjects matched by sex, age and body mass index (BMI). Serum 25-hydroxyvitamin D concentration was measured by ELISA method. In order to examine the quality of life, the Persian version of SF36 questionnaire was used. Results: There was significant difference between diabetic and healthy subjects considering serum 25-hydroxyvitamin D concentration (p=0.012). Serum 25-hydroxyvitamin D concentration was inversely correlated with diastolic blood pressure (p=0.02) and positively associated with physical function (p<0.001), social function (p<0.001) and general health (p<0.001) components of quality of life in diabetic subjects and physical health sub-scale (p=0.004) in all participants. Conclusion: Serum 25-hydroxyvitamin D concentration was significantly lower in diabetic subjects in comparison with healthy controls. There was a significant reverse relationship between serum concentrations of 25-hydroxyvitamin D with diastolic blood pressure and on the other hand, a significant positive relationship with physical function, social function and general health components and physical health subscale of quality of life in participants with DM Ⅱ.
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Affiliation(s)
| | - Neda Dolatkhah
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Hashemian
- Department of Biology, School of Arts and Sciences, Utica College, Utica, United States
| | - Seyed Kazem Shakouri
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Hasanpour
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Van Pilsum Rasmussen SE, Eno A, Bowring MG, Lifshitz R, Garonzik-Wang JM, Al Ammary F, Brennan DC, Massie AB, Segev DL, Henderson ML. Kidney Dyads: Caregiver Burden and Relationship Strain Among Partners of Dialysis and Transplant Patients. Transplant Direct 2020; 6:e566. [PMID: 32766421 PMCID: PMC7339348 DOI: 10.1097/txd.0000000000000998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 02/18/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Caring for dialysis patients is difficult, and this burden often falls on a spouse or cohabiting partner (henceforth referred to as caregiver-partners). At the same time, these caregiver-partners often come forward as potential living kidney donors for their loved ones who are on dialysis (henceforth referred to as patient-partners). Caregiver-partners may experience tangible benefits to their well-being when their patient-partner undergoes transplantation, yet this is seldom formally considered when evaluating caregiver-partners as potential donors. METHODS To quantify these potential benefits, we surveyed caregiver-partners of dialysis patients and kidney transplant (KT) recipients (N = 99) at KT evaluation or post-KT. Using validated tools, we assessed relationship satisfaction and caregiver burden before or after their patient-partner's dialysis initiation and before or after their patient-partner's KT. RESULTS Caregiver-partners reported increases in specific measures of caregiver burden (P = 0.03) and stress (P = 0.01) and decreases in social life (P = 0.02) and sexual relations (P < 0.01) after their patient-partner initiated dialysis. However, after their patient-partner underwent KT, caregiver-partners reported improvements in specific measures of caregiver burden (P = 0.03), personal time (P < 0.01), social life (P = 0.01), stress (P = 0.02), sexual relations (P < 0.01), and overall quality of life (P = 0.03). These improvements were of sufficient impact that caregiver-partners reported similar levels of caregiver burden after their patient-partner's KT as before their patient-partner initiated dialysis (P = 0.3). CONCLUSIONS These benefits in caregiver burden and relationship quality support special consideration for spouses and partners in risk-assessment of potential kidney donors, particularly those with risk profiles slightly exceeding center thresholds.
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Affiliation(s)
| | - Ann Eno
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mary G. Bowring
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | | | - Fawaz Al Ammary
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Daniel C. Brennan
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Allan B. Massie
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD
| | - Dorry L. Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Acute and Chronic Care, Johns Hopkins University School of Nursing, Baltimore, MD
| | - Macey L. Henderson
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Acute and Chronic Care, Johns Hopkins University School of Nursing, Baltimore, MD
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Hsu HJ, Wu IW, Hsu KH, Sun CY, Chen CY, Lee CC. Vitamin D deficiency, cardiothoracic ratio, and long-term mortality in hemodialysis patients. Sci Rep 2020; 10:7533. [PMID: 32371900 PMCID: PMC7200666 DOI: 10.1038/s41598-020-64359-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 02/13/2020] [Indexed: 12/19/2022] Open
Abstract
Hemodialysis patients are a special group of patients with higher mortality rates. Hemodialysis patients with vitamin D deficiency {plasma levels of 25-hydroxyvitamin D [25(OH)D] below 20 ng/mL} are associated with even higher mortality rates. The prognostic importance of vitamin D deficiency in hemodialysis patients with different cardiothoracic ratios (CTRs) is still unclear. This prospective study was performed in a single hemodialysis center, and 186 patients were included. This study analyzed the prognostic importance of vitamin D deficiency in hemodialysis patients with different CTRs. Vitamin D deficiency patients had a significantly higher prevalence of stroke and diabetic mellitus than those without vitamin D deficiency. In addition, the CTR was higher in patients with vitamin D deficiency than in those without vitamin D deficiency. After multivariate logistic regression, we found that CTR was the solitary factor that was independently significantly associated with vitamin D deficiency [odds ratio: 1.07, 95% confidence internal (CI): 1.01–1.13, p = 0.02]. Additionally, vitamin D deficiency was associated with all-cause mortality in patients with higher CTR after adjustment in hierarchical regression models. In conclusion, we reported that vitamin D deficiency was independently significantly associated with a higher CTR. We additionally revealed that vitamin D deficiency was an independent predicator for all-cause mortality in higher CTR hemodialysis patients.
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Affiliation(s)
- Heng-Jung Hsu
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.,The Graduate Institute of Clinical Medical Sciences, Chang Gung University Medical College, Taoyuan School of Medicine, Taoyuan, Taiwan.,Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - I-Wen Wu
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.,Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Kuang-Hung Hsu
- Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.,Laboratory for Epidemiology, Department of Health Care Management, Chang Gung University, Taoyuan, Taiwan.,Department of Emergency Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Urology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chiao-Yin Sun
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.,Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chun-Yu Chen
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Chin-Chan Lee
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan. .,College of Medicine, Chang Gung University, Tao-Yuan, Taiwan. .,Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.
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11
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Ren C, Liu W, Li J, Cao Y, Xu J, Lu P. Physical activity and risk of diabetic retinopathy: a systematic review and meta-analysis. Acta Diabetol 2019; 56:823-837. [PMID: 30900027 DOI: 10.1007/s00592-019-01319-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 03/05/2019] [Indexed: 01/28/2023]
Abstract
AIMS Diabetic retinopathy (DR) is an important microvascular complication of diabetes mellitus (DM) and a leading cause of visual impairment and blindness among people of working age. Physical activity (PA) or exercise is critical and beneficial for DM patients, whereas studies evaluating the relationship between PA and DR have yielded inconsistent and inconclusive results. The American Diabetes Association's "Standards of Medical Care in Diabetes" has also pointed out the indeterminate roles of PA in DR prevention. The purpose of this systematic review and meta-analysis was to explore the association between PA and DR risk. METHODS Medline (accessed by PubMed), EmBase, and Cochrane Library were systematically searched for studies up to June 2018, and the reference lists of the published articles were searched manually. The association between PA and DR risk was assessed using random-effect meta-analysis. RESULTS Twenty-two studies were included in this meta-analysis. PA was found to have a protective association with DR [risk ratio (RR) = 0.94, 95% confidence interval (95% CI) 0.90-0.98, p = 0.005] in diabetic patients, and the impact was more pronounced on vision-threatening DR (RR = 0.89, 95% CI 0.80-0.98, p = 0.02). Sedentary behavior could increase the risk of DR (RR = 1.18, 95% CI 1.01-1.37, p = 0.04). Moderate-intensity PA was likely to have a slight protective effect (RR = 0.76, 95% CI 0.58-1.00, p = 0.05). CONCLUSION PA is associated with lower DR risk, and more studies should focus on the causality between them.
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Affiliation(s)
- Chi Ren
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China
| | - Weiming Liu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China
| | - Jianqing Li
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China
| | - Yihong Cao
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China
| | - Jiayi Xu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China
| | - Peirong Lu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, People's Republic of China.
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12
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Clarkson MJ, Bennett PN, Fraser SF, Warmington SA. Exercise interventions for improving objective physical function in patients with end-stage kidney disease on dialysis: a systematic review and meta-analysis. Am J Physiol Renal Physiol 2019; 316:F856-F872. [DOI: 10.1152/ajprenal.00317.2018] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Patients with end-stage kidney disease on dialysis have increased mortality and reduced physical activity, contributing to impaired physical function. Although exercise programs have demonstrated a positive effect on physiological outcomes such as cardiovascular function and strength, there is a reduced focus on physical function. The aim of this review was to determine whether exercise programs improve objective measures of physical function indicative of activities of daily living for patients with end-stage kidney disease on dialysis. A systematic search of Medline, Embase, the Cochrane Central Register of Controlled Trials, and Cumulative Index to Nursing and Allied Health Literature identified 27 randomized control trials. Only randomized control trials using an exercise intervention or significant muscular activation in the intervention, a usual care, nonexercising control group, and at least one objective measure of physical function were included. Participants were ≥18 yr of age, with end-stage kidney disease, undergoing hemo- or peritoneal dialysis. Systematic review of the literature and quality assessment of the included studies used the Cochrane Collaboration’s tool for assessing risk bias. A meta-analysis was completed for the 6-min walk test. Data from 27 studies with 1,156 participants showed that exercise, regardless of modality, generally increased 6-min walk test distance, sit-to-stand time or repetitions, and grip strength as well as step and stair climb times or repetitions, dynamic mobility, and short physical performance battery scores. From the evidence available, exercise, regardless of modality, improved objective measures of physical function for end-stage kidney disease patients undergoing dialysis. It is acknowledged that further well-designed randomized control trials are required.
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Affiliation(s)
- Matthew J. Clarkson
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Paul N. Bennett
- Medical and Clinical Affairs, Satellite Healthcare, Adelaide, South Australia, Australia
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
| | - Steve F. Fraser
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Stuart A. Warmington
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
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13
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Wickstrom JF, Sayles HR, Graeff-Armas LA, Yentes JM. The Likelihood of Self-reporting Balance Problems in Those With Advanced Chronic Kidney Disease, Slow Gait Speed, or Low Vitamin D. J Ren Nutr 2018; 29:490-497. [PMID: 30581062 DOI: 10.1053/j.jrn.2018.10.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 09/24/2018] [Accepted: 10/14/2018] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE The purpose of this study was to determine the prevalence of vitamin D (25(OH)D) and balance deficits in persons with chronic kidney disease (CKD) and the likelihood of self-reporting balance and falling problems, measured gait speed in persons with kidney disease, and low levels of vitamin D and albumin. DESIGN Analysis of the National Health and Nutrition Examination Survey 1999-2004 data set. SUBJECTS The study included 8,554 subjects aged >40 years who were categorized into CKD stages based on the glomerular filtration rate (normal kidney function and stages 1 and 2 served as the control group, and stages 3 and 4/5 served as the CKD groups). MAIN OUTCOME MEASURES Measured 25(OH)D levels, timed 20-feet walk, Romberg standing balance task, and self-reported balance and falling issues. RESULTS The prevalence of balance deficits was found to be high in this CKD sample, with fail rates increasing with kidney disease severity. Similarly, when examining the relationship between CKD stage and the measurement of balance, fail rates (impaired balance) increased and gait speed decreased with kidney disease severity. In addition, the likelihood of self-reporting a balance and falling problem in the past year was higher in persons who had advanced CKD, were of older age, were of female sex, were with former or current smoking status, had lower 25(OH)D levels, and had lower albumin levels. Similarly, the likelihood of having a 20-feet walk time of more than 8 seconds was associated with those who were older, had higher body mass index, and had lower levels of 25(OH)D and albumin. CONCLUSION The unique finding of this study is that increased reporting of balance and falling issues (both perceived and measured) and slower gait were found in persons with increased CKD severity and lower 25(OH)D status.
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Affiliation(s)
- Jordan F Wickstrom
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, Nebraska
| | - Harlan R Sayles
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska
| | - Laura A Graeff-Armas
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska; Internal Medicine Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, Nebraska
| | - Jennifer M Yentes
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, Nebraska.
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14
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Vitamin D deficiency is associated with poorer satisfaction with diabetes-related treatment and quality of life in patients with type 2 diabetes: a cross-sectional study. Health Qual Life Outcomes 2018. [PMID: 29530048 PMCID: PMC5848532 DOI: 10.1186/s12955-018-0873-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In this cross-sectional study, we assessed the possible association of vitamin D deficiency with self-reported treatment satisfaction and health-related quality of life in patients with type 2 diabetes. METHODS We performed a sub-analysis of a previous study and included a total of 292 type 2 diabetic patients. We evaluated treatment satisfaction and health-related quality of life through specific tools: the Diabetes Treatment Satisfaction Questionnaire and the Audit of Diabetes-Dependent Quality of Life. Vitamin D deficiency was defined as 25 (OH) D serum levels < 15 ng/mL. RESULTS Multivariable linear regression models were used to estimate the relationship of vitamin D deficiency with both outcomes once adjusted for self-reported patient characteristics. Vitamin D deficiency was significantly associated with the final score of the Diabetes Treatment Satisfaction Questionnaire and the single "diabetes-specific quality of life" dimension of the Audit of Diabetes-Dependent Quality of Life (p = 0.0198 and p = 0.0070, respectively). However, lower concentrations of 25-OH vitamin D were not associated with the overall quality of life score or the perceived frequency of hyperglycaemia and hypoglycaemia. CONCLUSIONS Our study shows the association between vitamin D deficiency and both the self-reported diabetes treatment satisfaction and the diabetes-specific quality of life in patients with type 2 diabetes.
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15
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Helde-Frankling M, Höijer J, Bergqvist J, Björkhem-Bergman L. Vitamin D supplementation to palliative cancer patients shows positive effects on pain and infections-Results from a matched case-control study. PLoS One 2017; 12:e0184208. [PMID: 28859173 PMCID: PMC5578640 DOI: 10.1371/journal.pone.0184208] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 08/21/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND We previously showed an association between low vitamin D levels and high opioid doses to alleviate pain in palliative cancer patients. The aim of this case-controlled study was to investigate if vitamin D supplementation could improve pain management, quality of life (QoL) and decrease infections in palliative cancer patients. METHODS Thirty-nine palliative cancer patients with levels of 25-hydroxyvitamin D < 75 nmol/L were supplemented with vitamin D 4000 IE/day, and were compared to 39 untreated, matched "control"-patients from a previous study at the same ward. Opioid doses, antibiotic consumption and QoL-scores measured with the Edmonton Symptom Assessment Scale (ESAS) were monitored. The primary endpoint was the change from baseline after 1 and 3 months compared between the groups using linear regression with adjustment for a potential cofounding factor. RESULTS After 1 month the vitamin D treated group had a significantly decreased fentanyl dose compared to the untreated group with a difference of 46 μg/h; 95% CI 24-78, which increased further at 3 months to 91 μg/h; 95% CI 56-140 μg/h. The ESAS QoL-score improved in the Vitamin D group the first month; -1.4; 95% CI -2.6 - (-0.21). The vitamin D-treated group had significantly lower consumption of antibiotics after 3 months compared to the untreated group, the difference was -26%; 95%CI -0.41%-(-0.12%). Vitamin D was well tolerated by all patients and no adverse events were reported. CONCLUSION Vitamin D supplementation to palliative cancer patients is safe and improvement in pain management is noted as early as 1 month after treatment. Decreased infections are noted 3 months after vitamin D treatment. The results from this pilot-study have been used for the power-calculation of a future randomized, placebo-controlled, double-blind study called "Palliative-D" that will start in Nov 2017 and will include 254 palliative cancer patients.
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Affiliation(s)
- Maria Helde-Frankling
- ASIH Stockholm Södra, Långbro Park, Palliative Home Care and Hospice Ward, Älvsjö, Sweden
- Department of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institutet and Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Jonas Höijer
- Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jenny Bergqvist
- Department of Surgery, Breast Centre, Capio St Gorans Hospital, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Linda Björkhem-Bergman
- ASIH Stockholm Södra, Långbro Park, Palliative Home Care and Hospice Ward, Älvsjö, Sweden
- Department of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institutet and Karolinska University Hospital, Huddinge, Stockholm, Sweden
- * E-mail:
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16
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Maternal vitamin D, DNA methylation at imprint regulatory regions and offspring weight at birth, 1 year and 3 years. Int J Obes (Lond) 2017; 42:587-593. [PMID: 28676681 PMCID: PMC5756131 DOI: 10.1038/ijo.2017.160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/17/2017] [Accepted: 06/21/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND/OBJECTIVE Vitamin D deficiency during pregnancy is associated with poor birth outcomes in some studies, but few have examined weight beyond birth. In addition, little is known about how vitamin D influences DNA methylation of regulatory regions known to be involved in growth, as possible mediators to weight status in offspring. SUBJECTS/METHODS We conducted linear regressions to assess maternal plasma 25-hydroxyvitamin D (25(OH)D) by quartile and birth weight for gestational age z-score, 1-year weight-for-length z-score and 3-year body mass index (BMI) z-score among 476 mother/infant dyads from a prospective cohort. We assessed maternal 25(OH)D and infant DNA methylation at nine differentially methylated regions (DMRs) of genomically imprinted genes with known functions in fetal growth, including H19, IGF2, MEG3, MEG3-IG, MEST, NNAT, PEG3, PLAGL1 and SGCE/PEG10. RESULTS Mean (standard deviation, s.d.) maternal 25(OH)D was 41.1 (14.2) nmol l-m at a mean (s.d.) of 13.2 (5.5) weeks gestation. After adjustment for potential confounders, the first (Q1) and second (Q2) quartiles of 25(OH)D, compared to the fourth (Q4), were associated with lower birth weight for gestational age z-scores (-0.43 units; CI: -0.79, -0.07; P=0.02 for Q1 and -0.56 units; CI: -0.89, -0.23; P=0.001 for Q2). Q1 compared to Q4 was associated with higher 1-year weight-for-length z-scores (0.78 units; 0.08, 1.54; P=0.04) and higher 3-year BMI z-scores (0.83 units; 0.11, 0.93; P=0.02). We did not observe associations between maternal 25(OH)D and methylation for any of the nine DMRs after correcting for multiple testing. CONCLUSIONS Reduced maternal 25(OH)D was associated with lower birth weight for gestational age z-scores but higher 1-year weight-for-length and 3-year BMI z-scores in offspring. However, 25(OH)D does not appear to be operating through the regulatory sequences of the genomically imprinted genes we examined.
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Bennett PN, Capdarest-Arest N, Parker K. The physical deterioration of dialysis patients-Ignored, ill-reported, and ill-treated. Semin Dial 2017; 30:409-412. [DOI: 10.1111/sdi.12610] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Paul N. Bennett
- Medical Clinical Affairs; Satellite Healthcare Inc.; San Jose CA USA
- Faculty of Health; Deakin University; Melbourne Victoria Australia
| | | | - Kristen Parker
- Sheldon Chumir, South Calgary and Drumheller Dialysis Units; Alberta Canada
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18
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Oh TR, Kim CS, Bae EH, Ma SK, Han SH, Sung SA, Lee K, Oh KH, Ahn C, Kim SW. Association between vitamin D deficiency and health-related quality of life in patients with chronic kidney disease from the KNOW-CKD study. PLoS One 2017; 12:e0174282. [PMID: 28448520 PMCID: PMC5407618 DOI: 10.1371/journal.pone.0174282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/06/2017] [Indexed: 12/25/2022] Open
Abstract
Vitamin D deficiency is a growing health problem in both the general population and in patients with chronic kidney disease (CKD). However, the relationship between serum 25-hydroxyvitamin D levels and health-related quality of life in CKD is not well established. This study examined the association between vitamin D deficiency and quality of life in pre-dialysis CKD patients. Serum 25-hydroxyvitamin D levels and the Korean version of the Kidney Disease Quality of Life short form were obtained for 1844 pre-dialysis CKD patients in the prospective KoreaN cohort Study for Outcomes in patients With Chronic Kidney Disease (KNOW-CKD). The baseline estimated glomerular filtration rate was 50.26 ± 0.71 mL/min/1.73 m2. We identified 1294 (70.2%) patients with vitamin D deficiency, defined as a 25-hydroxyvitamin D level < 20 ng/ml. The scores of the kidney disease component summary, physical component summary, and mental component summary in the vitamin D deficiency group were significantly lower compared to the scores of those without vitamin D deficiency. The serum 25-hydroxyvitamin D level was independently associated with the kidney disease component summary and mental component summary scores (β = 0.147, p = 0.003 and β = 0.151, p = 0.047). In conclusion, there was a significant association between serum 25-hydroxyvitamin D levels and kidney disease component summary and mental component summary scores in pre-dialysis CKD patients.
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Affiliation(s)
- Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Hyeok Han
- Depatment of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Su-Ah Sung
- Department of Internal Medicine, Eulji University, Seoul, Korea
| | - Kyubeck Lee
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, Korea
| | - Kook Hwan Oh
- Department of Internal Medicine, Seoul National University, Seoul, Korea
| | - Curie Ahn
- Department of Internal Medicine, Seoul National University, Seoul, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Shi Y, Zheng D, Zhang L, Yu Z, Yan H, Ni Z, Qian J, Fang W. Six-minute walk test predicts all-cause mortality and technique failure in ambulatory peritoneal dialysis patients. Nephrology (Carlton) 2017; 22:118-124. [PMID: 26773829 DOI: 10.1111/nep.12726] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/08/2016] [Accepted: 01/10/2016] [Indexed: 11/29/2022]
Abstract
AIM This study investigated the associated factors of 6-min walk test (6MWT) and its predictive value of outcome in patients undergoing peritoneal dialysis (PD). METHODS This is a single centre prospective observational cohort study. Stable ambulatory PD patients in our centre between 1 May 2010 and 30 April 2011 were enrolled in this study. All included subjects performed 6MWT, and 6-min walk distances (6MWDs) were recorded. Patients were divided into two groups according to 6MWD and prospectively followed up until death, cessation of PD or to the end of the study (30 September 2012). RESULTS A total of 145 patients were enrolled, including 63 (43%) males. Multiple stepwise regression showed that age (β = -0.295, P = 0.001), diastolic blood pressure (DBP) (β = 0.292, P = 0.001), left ventricular ejection fraction (LVEF) (β = 0.198, P = 0.019) were independently associated with lower 6MWD. By the end of the study, six (8%) patients died in long 6MWD group while 15 (20%) died in the short 6MWD group, a significantly lower patient survival was observed in short 6MWD group (Log-rank = 4.983, P = 0.026). Patients with short 6MWD also showed inferior technique survival (Log-rank = 4.838, P = 0.028). There was no significant difference in peritonitis-free survival between the two groups (Log-rank = 0.801, P = 0.371). However, more patients in short 6MWD group had been transferred to hemodialysis due to peritonitis (25% vs 4.2%, P = 0.013). CONCLUSION Age, diastolic blood pressure, LVEF are independent associated factors of 6MWD in patients undergoing PD. Having the advantages of easy applicability and safety, 6MWT may be proposed as an important predictor of outcome in ambulatory PD patients.
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Affiliation(s)
- Yuanyuan Shi
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Dongxia Zheng
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Lin Zhang
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Zanzhe Yu
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Hao Yan
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Zhaohui Ni
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Jiaqi Qian
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
| | - Wei Fang
- Renal Division, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai Center for Peritoneal Dialysis, Shanghai, China
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20
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Valderrama-Hinds LM, Al Snih S, Rodriguez MA, Wong R. Association of arthritis and vitamin D insufficiency with physical disability in Mexican older adults: findings from the Mexican Health and Aging Study. Rheumatol Int 2016; 37:607-616. [PMID: 27904949 DOI: 10.1007/s00296-016-3622-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/23/2016] [Indexed: 12/19/2022]
Abstract
Arthritis and vitamin D insufficiency are prevalent in older adults and are risk factors for disability. The objective of this study was to examine the effect of co-occurring arthritis and vitamin D deficiency on upper-lower extremity functional limitations and disability in older adults. We examined 1533 participants aged ≥50 years from a subsample of the Mexican Health and Aging Study. Measures included sociodemographics, body mass index, comorbid conditions, falls, physical activity, physical function tests, functional limitations, activities of daily living (ADL), and vitamin D. Participants were categorized into four groups according to arthritis and vitamin D status: no vitamin D insufficiency and no arthritis (58.80%), vitamin D insufficiency only (27.49%), arthritis only (8.47%), and arthritis and vitamin D insufficiency (5.24%). Fourteen percent reported arthritis, and 31.2% had vitamin D insufficiency. The arthritis and vitamin D insufficiency group was associated with upper-lower extremity functional limitations [odds ratio (OR) 1.82, 95% confidence interval (CI) 1.06-3.15, and OR 1.90, 95% CI 1.00-3.62, respectively] and ADL disability (OR 3.00, 95% CI 1.63-5.51) when compared with the no vitamin D insufficiency and no arthritis group (reference group). The arthritis only group was three times more likely to report upper-lower extremity functional limitations and ADL disability. The vitamin D insufficiency only group was not significantly associated with functional limitations nor ADL disability. Arthritis and vitamin D insufficiency increased the risk of ADL disability in this population. However, the effect of arthritis and vitamin D insufficiency on upper-lower extremity functional limitations was not higher than the effect of arthritis only, but higher than the effect on vitamin D insufficiency alone.
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Affiliation(s)
- Luis M Valderrama-Hinds
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, 77555-0177, USA. .,Division of Rheumatology, Department of Internal Medicine, Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela. .,Centro Nacional de Enfermedades Reumáticas, Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela.
| | - Soham Al Snih
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, 77555-0177, USA. .,Division of Rehabilitation Sciences, School of Health Professions, University of Texas Medical Branch, 301 University Blvd., Galveston, TX, 77555-0177, USA. .,Division of Geriatrics, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA.
| | - Martin A Rodriguez
- Division of Rheumatology, Department of Internal Medicine, Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela.,Centro Nacional de Enfermedades Reumáticas, Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela
| | - Rebeca Wong
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, 77555-0177, USA.,Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX, USA
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Westra S, Krul-Poel YHM, van Wijland HJ, Ter Wee MM, Stam F, Lips P, Pouwer F, Simsek S. Effect of vitamin D supplementation on health status in non-vitamin D deficient people with type 2 diabetes mellitus. Endocr Connect 2016; 5:61-69. [PMID: 27803154 PMCID: PMC5118972 DOI: 10.1530/ec-16-0070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 11/01/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Increased levels of depressive symptoms, fatigue or pain (all dimensions of reduced health-related quality of life (HRQOL)) are common in people with type 2 diabetes mellitus (DM). Earlier studies have reported associations between low vitamin D status and fatigue and depressive symptoms. The aim of the present study was to examine the effects of vitamin D supplementation on dimensions of HRQOL in people with type 2 DM. DESIGN Randomised, double-blind, placebo-controlled trial. METHODS The effect of monthly cholecalciferol 50,000 IU vs placebo on HRQOL was assessed in 275 adults with type 2 DM derived from general practices. HRQOL at baseline and after six months using the Short Form 36 Health Survey (SF-36) was collected. Linear regression analyses were used to compare the change in HRQOL over time between the vitamin D and placebo group. RESULTS 187/275 (68%) completed baseline and follow-up SF-36 and were included in the analysis. Median serum 25-hydroxyvitamin D almost doubled in the intervention group compared to that in the placebo group (58.5-106.0 nmol/L vs 60.0-61.5 nmol/L, respectively). A small significant difference (adjusted B: -8.90; 95% CI: -17.16 to -0.65) between both groups was seen concerning the SF-36 domain role limitations due to physical problems in disadvantage of the vitamin D group. CONCLUSIONS Six months of vitamin D supplementation did not improve HRQOL in non-vitamin D-deficient people with type 2 DM managed on oral antidiabetic therapy.
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Affiliation(s)
- S Westra
- Department of Internal MedicineMedical Centre Alkmaar, Alkmaar, the Netherlands
| | - Y H M Krul-Poel
- Department of Internal MedicineMedical Centre Alkmaar, Alkmaar, the Netherlands
| | - H J van Wijland
- Department of General PracticeDIAZON, Alkmaar, the Netherlands
| | - M M Ter Wee
- Department of Epidemiology and BiostatisticsVU Medical Centre, Amsterdam, the Netherlands
| | - F Stam
- Department of Internal MedicineMedical Centre Alkmaar, Alkmaar, the Netherlands
| | - P Lips
- Department of Internal MedicineEndocrine Section, VU Medical Centre, Amsterdam, the Netherlands
| | - F Pouwer
- Department of Medical and Clinical PsychologyTilburg University, Tilburg, the Netherlands
| | - S Simsek
- Department of Internal MedicineMedical Centre Alkmaar, Alkmaar, the Netherlands
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Yu KC, D'Avanzo PA, Nesheiwat L, Greene RE, Urbina A, Halkitis PN, Kapadia F. Associations Between Neurocognitive Impairment and Biomarkers of Poor Physiologic Reserve in a Clinic-Based Sample of Older Adults Living with HIV. J Assoc Nurses AIDS Care 2016; 28:55-66. [PMID: 27639980 DOI: 10.1016/j.jana.2016.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 08/18/2016] [Indexed: 11/28/2022]
Abstract
Data from a cross-sectional study of a clinic-based sample of older people living with HIV (PLWH; n = 100) were used to examine associations between biomarkers of physical health and neurocognitive impairment (NCI). In this sample, anemia, chronic kidney disease (CKD) stages 4-5, and hypocalcemia were associated with impairment in executive functioning or processing speed. Furthermore, participants with anemia were more likely to have CD4+ T cell counts <200 cells/mm3 (χ2 [1] = 19.57, p < .001); hypocalcemia (χ2 [1] = 17.55, p < .001); and CKD 4-5 (χ2 [2] = 10.12, p = .006). Black and Hispanic participants were more likely to be anemic compared to other races and ethnicities (χ2 [3] = 12.76, p = .005). Common medical conditions (e.g., anemia, hypocalcemia, CKD) should be investigated as potential contributors to NCI in older PLWH. Additionally, laboratory testing in racial/ethnic minority PLWH may help inform NCI screening.
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Wee HL, Seng BJJ, Lee JJ, Chong KJ, Tyagi P, Vathsala A, How P. Association of anemia and mineral and bone disorder with health-related quality of life in Asian pre-dialysis patients. Health Qual Life Outcomes 2016; 14:94. [PMID: 27342630 PMCID: PMC4919845 DOI: 10.1186/s12955-016-0477-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 04/30/2016] [Indexed: 01/28/2023] Open
Abstract
Background Patients with chronic kidney disease (CKD) have poor health-related quality of life (HRQoL). The association of CKD-related complications such as anemia and mineral and bone disorders (MBD) with HRQoL in pre-dialysis patients is not well-studied. As such, this study aimed to determine the association of anemia and MBD with HRQoL in pre-dialysis patients. Methods This was a cross-sectional study involving 311 adult pre-dialysis patients with stage 3–5 CKD from an acute-care hospital in Singapore. Patients’ HRQoL were assessed using Kidney Disease Quality of Life Short Form (KDQOL-SF™) and EuroQol 5 Dimensions–3 levels (EQ5D-3L). HRQoL between patients with and without anemia or MBD were compared by separate hierarchical multiple linear regression analyses using various HRQoL scales as dependent variables, adjusted for sociodemographic, clinical and psychosocial variables. Results After adjusting for MBD, anemia was associated with lower HRQoL scores on work status (WS), physical functioning (PF) and role physical [β (SE): −10.9 (4.18), p = 0.010; −3.0 (1.28), p = 0.018; and −4.2 (1.40), p = 0.003, respectively]. However, significance was lost after adjustments for sociodemographic variables. Patients with MBD had poorer HRQoL with respect to burden of kidney disease, WS, PF and general health [(β (SE): −7.9 (3.88), p = 0.042; −9.5 (3.99), p = 0.018; −3.0 (1.22) p = 0.014; −3.6 (1.48), p = 0.015, respectively]. Although these remained significant after adjusting for sociodemographic variables, significance was lost after adjusting for clinical variables, particularly pill burden. This is of clinical importance due to the high pill burden of CKD patients, especially from medications for the management of multiple comorbidities such as cardiovascular and mineral and bone diseases. Conclusions Neither anemia nor MBD was associated with HRQoL in our pre-dialysis patients. Instead, higher total daily pill burden was associated with worse HRQoL. Medication reconciliation should therefore be routinely performed by clinicians and pharmacists to reduce total daily pill burden where possible.
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Affiliation(s)
- Hwee-Lin Wee
- Department of Pharmacy, Faculty of Science, National University of Singapore, Block S4A, 18 Science Drive 4, Singapore, 117543, Singapore.,Department of Rheumatology and Immunology, Singapore General Hospital, Singapore, Singapore
| | - Benjamin Jun Jie Seng
- Department of Pharmacy, Faculty of Science, National University of Singapore, Block S4A, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Jia Jia Lee
- Department of Pharmacy, Faculty of Science, National University of Singapore, Block S4A, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Kok Joon Chong
- Department of Pharmacy, Faculty of Science, National University of Singapore, Block S4A, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Pallavi Tyagi
- Department of Medicine (Division of Nephrology), National University Hospital, Singapore, Singapore
| | - Anantharaman Vathsala
- Department of Medicine (Division of Nephrology), National University Hospital, Singapore, Singapore
| | - Priscilla How
- Department of Pharmacy, Faculty of Science, National University of Singapore, Block S4A, 18 Science Drive 4, Singapore, 117543, Singapore. .,Department of Medicine (Division of Nephrology), National University Hospital, Singapore, Singapore.
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Tepper S, Dabush Y, Shahar DR, Endevelt R, Geva D, Ish-Shalom S. Vitamin D Status and Quality of Life in Healthy Male High-Tech Employees. Nutrients 2016; 8:E366. [PMID: 27314386 PMCID: PMC4924207 DOI: 10.3390/nu8060366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/18/2016] [Accepted: 05/30/2016] [Indexed: 11/16/2022] Open
Abstract
While low vitamin D status has been shown to be associated with decreased quality of life in unhealthy populations and women, only limited data are available regarding healthy adult men. Our aim was to evaluate the associations between health-related quality of life (QoL) and vitamin D status in adult men. High-tech employees aged 25-65 year were recruited from an occupational periodic examination clinic at Rambam Health Campus. QoL was assessed using the Centers for Disease Control and Prevention (CDC) Health-related quality of life questionnaire (HRQOL-4). Serum 25-hydroxyvitamin D (25(OH)D) and Body Mass Index (BMI) were measured; further information was collected about physical activity, education, sun exposure, sick-days, and musculoskeletal pain severity (visual analog scale). Three hundred and fifty-eight men were enrolled in the study; mean serum 25(OH)D level was 22.1 ± 7.9 ng/mL (range 4.6-54.5 ng/mL). In a multivariate logistic regression model, 25(OH)D was a significant independent determinant of self-rated health; Odds Ratio (OR) for self-rated health was 0.91 (95% confidence interval (CI) 0.85-0.97, p = 0.004), adjusted for age, BMI, pain severity, physical activity, and sun exposure. Every 1 ng/mL increase of 25(OH)D was associated with 9% reduction in the odds of reporting self-rated health as fair or poor. Poisson regression model demonstrated an association between physically unhealthy days and 25(OH)D levels (rate ratio 0.95, p < 0.001). In conclusion, serum levels of 25(OH)D were associated with self-rated health and with physically unhealthy days of HRQOL in healthy high-tech male workers. Future intervention studies are required to test the impact of vitamin D supplementation on QoL.
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Affiliation(s)
- Sigal Tepper
- The S. Daniel Abraham International Center for Health and Disease, Department of Public Health, Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva 8410501, Israel.
| | - Yael Dabush
- Department of Clinical Nutrition, Rambam Health Care Campus, Haifa 31093, Israel.
| | - Danit R Shahar
- The S. Daniel Abraham International Center for Health and Disease, Department of Public Health, Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva 8410501, Israel.
| | - Ronit Endevelt
- School of Public Health, Haifa University, Mt. Carmel, Haifa 31905, Israel.
| | - Diklah Geva
- The S. Daniel Abraham International Center for Health and Disease, Department of Public Health, Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva 8410501, Israel.
| | - Sofia Ish-Shalom
- Department of Endocrinology & Diabetes, Elisha Medical Center, Haifa 3463626, Israel.
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Vitamin D deficiency and depression among women from an urban community in a tropical country. Public Health Nutr 2016; 20:1844-1850. [DOI: 10.1017/s1368980016000811] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AbstractObjectiveTo determine the association of vitamin D status with depression and health-related quality of life among women.DesignThis was a cross-sectional study conducted among women in Kuala Lumpur, Malaysia. Sociodemographic characteristics, physical activity status, perceived depression and health-related quality of life were assessed via a self-administered questionnaire. Fasting blood samples were taken for the analysis of 25-hydroxyvitamin D, parathyroid hormone, fasting blood glucose and full lipid profile. Complex samples multiple logistic regression analysis was performed.SettingPublic secondary schools in Kuala Lumpur, Malaysia.SubjectsSeven hundred and seventy female teachers were included.ResultsThe mean age of participants was 41·15 (95 % CI 40·51, 41·78) years and the majority were ethnic Malays. Over 70 % of them had vitamin D deficiency (<20 ng/ml or <50 nmol/l) and two-thirds were at risk for depression. In the multivariate analysis, ethnic Malays (adjusted OR (aOR)=14·72; 95 % CI 2·12, 102·21) and Indians (aOR=14·02; 95 % CI 2·27, 86·59), those at risk for depression (aOR=1·88, 95 % CI 1·27, 2·79) and those with higher parathyroid hormone level (aOR=1·13; 95 % CI 1·01, 1·26) were associated with vitamin D deficiency, while vitamin D deficiency was negatively associated with mental health-related quality of life (Mental Component Summary) scores (aOR=0·98; 95 % CI 0·97, 0·99).ConclusionsVitamin D deficiency is significantly associated with depression and mental health-related quality of life among women in Kuala Lumpur, Malaysia.
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26
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Krul-Poel YHM, Westra S, van Wijland HJJ, Stam F, Lips P, Pouwer F, Simsek S. Vitamin D status and health-related quality of life in patients with Type 2 diabetes. Diabet Med 2016; 33:300-6. [PMID: 26059284 DOI: 10.1111/dme.12834] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2014] [Indexed: 12/12/2022]
Abstract
AIMS To test whether vitamin D status was associated with health-related quality of life in people with Type 2 diabetes mellitus. METHODS Demographic and clinical characteristics, including health-related quality of life scores, were obtained from 241 adult patients with Type 2 diabetes managed with oral hypoglycaemic agents. Health-related quality of life was assessed using the Short-Form 36 Health Survey. Multiple logistic regression analysis was used to investigate the association between vitamin D status and health-related quality of life, with adjustment for confounders. RESULTS The mean age of the patients included in the study was 67 ± 8 years. Their mean HbA1c concentration was 52 ± 8 mmol/mol (6.9 ± 0.7%) and their mean serum 25-hydroxyvitamin D concentration was 59 ± 23 nmol/l. Vitamin D deficiency (serum 25-hydroxyvitamin D < 50 nmol/l) was present in 38% of patients. No significant associations were found between vitamin D status and health-related quality of life. CONCLUSIONS Vitamin D status was not associated with health-related quality of life in patients with Type 2 diabetes. This could be explained by the relatively high serum 25-hydroxyvitamin D concentration, good glycaemic control and relatively good health-related quality of life of all patients. A prospective study among patients with vitamin D deficiency and poor glycaemic control would be interesting for future research.
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Affiliation(s)
- Y H M Krul-Poel
- Department of Internal Medicine, Medical Centre Alkmaar, Alkmaar, The Netherlands
| | - S Westra
- Department of Internal Medicine, Medical Centre Alkmaar, Alkmaar, The Netherlands
| | | | - F Stam
- Department of Internal Medicine, Medical Centre Alkmaar, Alkmaar, The Netherlands
| | - P Lips
- Department of Internal Medicine/Endocrinology, VU University Medical Centre, Amsterdam, The Netherlands
| | - F Pouwer
- Department of Medical and Clinical Psychology, Tilburg University, Tilburg, The Netherlands
| | - S Simsek
- Department of Internal Medicine, Medical Centre Alkmaar, Alkmaar, The Netherlands
- Department of Internal Medicine/Endocrinology, VU University Medical Centre, Amsterdam, The Netherlands
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Vitamin D deficiency--prognostic marker or mortality risk factor in end stage renal disease patients with diabetes mellitus treated with hemodialysis--a prospective multicenter study. PLoS One 2015; 10:e0126586. [PMID: 25965403 PMCID: PMC4428845 DOI: 10.1371/journal.pone.0126586] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 04/06/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND End stage renal disease (ESRD) patients on renal replacement therapy (RRT) with diabetes mellitus (DM) have a higher mortality rate and an increase prevalence of vitamin D deficiency compared to those without DM. It is still debated if vitamin D deficiency is a risk factor or a prognostic marker for mortality in these patients. This study investigated the prevalence of vitamin D deficiency and its impact on all-cause mortality in HD patients with DM. METHODS Our prospective non-interventional cohort study included 600 patients on hemodialysis therapy (HD) (median aged 56, interquartile range (19) years, 332 (55.3%) males) recruited from 7 HD centers, from all main geographical regions of Romania. The prevalence of DM was 15.3%. They were then followed regarding: dialysis duration, dialysis efficiency, renal anemia, CKD-MBD, inflammatory status and comorbidities: coronary artery disease (CAD), peripheral vascular disease (PVD) and stroke. The deficiency of 25-OH vitamin D was defined as a value lower than 12 ng/mL. RESULTS Patients were followed for 3 years. The overall 3 year mortality was 25.5% (153 individuals), being higher in patients with DM as compared to those without DM (33.7% vs. 24.0%; P = 0.049). The time-related prognosis was also influenced by the presence of DM, at the survival analysis resulting in a HR of 1.52 [1.03 to 2.26] 95% CI, P = 0.037, for death in dialyzed patients with DM. In DM patients, 25-OH vitamin D deficiency was significantly higher (37.0% compared to 24.0%, P = 0.009). Furthermore, in patients with DM we observed a shorter dialysis duration (2 vs. 3 years, P<0.001) and a lower intact parathyroid hormone (iPTH) (258.0 pg/ml vs. 441.9 pg/ml, P = 0.002). Regarding the presence of comorbidities at the inclusion in the study, the presence of diabetes in dialyzed patients was associated with increased prevalence of CAD (87.0% vs. 58.1%, P<0.001), PVD (67.4% vs. 17.3%, P<0.001) and history of stroke (29.3% vs. 14.0%, P<0.001). In patients with DM the presence of 25-OH vitamin D deficiency increased the probability of death (50.0% vs. 24.1%; P = 0.011). In multiple Cox proportional hazards analysis, vitamin D deficiency remained an independent predictor for mortality in dialysis patients with DM (HR = 1.71, 95% CI 1.21 to 2.43, P = 0.003). In the same time, multiple Cox proportional hazards analysis showed that age (HR = 1.02 per one year increase, P = 0.004), CAD (HR = 1.55, P = 0.046) and PVD (HR = 1.50, P = 0.029) were independent predictors for mortality in dialysis patients with DM. CONCLUSIONS ESRD patients with DM treated with HD have a higher overall mortality than non-DM patients. Vitamin D deficiency is significantly more prevalent in HD patients with DM. Low 25-OH vitamin D levels were associated with increased all-cause mortality in these patients. According to our data, in HD patients with DM, screening for vitamin D deficiency (and its correction) should be mandatory for an optimal risk reduction strategy.
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Kim HJ, Lee JY, Kim TJ, Lee JW. Association between serum vitamin D status and health-related quality of life (HRQOL) in an older Korean population with radiographic knee osteoarthritis: data from the Korean national health and nutrition examination survey (2010-2011). Health Qual Life Outcomes 2015; 13:48. [PMID: 25927585 PMCID: PMC4424888 DOI: 10.1186/s12955-015-0245-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 04/11/2015] [Indexed: 11/10/2022] Open
Abstract
Background Vitamin D is important in bone health and its relationship with osteoarthritis has recently been reported. Both vitamin D deficiency and knee osteoarthritis are age dependent and are known to affect quality of life (QOL) in older populations. In this study, we aimed to determine the association between vitamin D status and health-related quality of life (HRQOL) in an older Korean population with knee osteoarthritis. Methods A total of 2,165 participants aged ≥50 years with radiographic knee osteoarthritis defined as Kellgren-Lawrence (KL) grade ≥2 were selected from data from the 5th Korean National Health and Nutrition Examination Survey (KNHANES V), a representative cross-sectional nationwide survey conducted in 2010–2011. They stratified into two levels by vitamin D status (deficiency <10 ng/dL and normal ≥10 ng/dL). HRQOL was measured using the EuroQOL visual analogue scale (EQ-VAS) and the five dimensions and summary index of the EuroQOL-5 dimension (EQ-5D). Results The vitamin D deficiency group was more likely to report problems with mobility, self-care, and usual activities. Vitamin D deficiency was significantly associated with poor HRQOL indicated by the lowest quartile of EQ-VAS (unadjusted odds ratio [OR] =1.832, p = 0.006) and the lowest quartile of the EQ-5D index (unadjusted OR = 1.992, p = 0.003). Theses associations of vitamin D status with EQ-VAS and EQ-5D index were maintained after adjustment for age and sex (Model 1: OR = 1.677, p = 0.022 and OR = 1.701, p = 0.021, respectively). The significant associations of vitamin D status with EQ-VAS were maintained after adjustment for other possible covariates (Model 3: OR = 1.562, p = 0.044). Also, a trend of associations between vitamin D status and EQ-5D index were shown after adjustment for other covariates (Model3: OR = 1.681, p = 0.056). Conclusion This is the first study to reveal that vitamin D status is independently associated with HRQOL in an older Korean population with knee osteoarthritis. Our results suggest that the maintenance of sufficient vitamin D status may be important to prevent QOL decline in older populations with knee osteoarthritis. Electronic supplementary material The online version of this article (doi:10.1186/s12955-015-0245-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hye-Jung Kim
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
| | - Jee-Yon Lee
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
| | - Tae-Jong Kim
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
| | - Ji-Won Lee
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
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Runia TF, Neuteboom RF, de Groot CJM, de Rijke YB, Hintzen RQ. The influence of vitamin D on postpartum relapse and quality of life in pregnant multiple sclerosis patients. Eur J Neurol 2014; 22:479-84. [PMID: 25430875 DOI: 10.1111/ene.12594] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 09/10/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE In relapsing-remitting MS patients, lower serum vitamin D concentrations are associated with higher relapse risk. In a number of conditions, low vitamin D has been associated with fatigue. Pregnant women are at particular risk for vitamin D insufficiency. Our objective was to investigate whether vitamin D status is associated with postpartum relapse and quality of life during pregnancy. METHODS Forty-three pregnant relapsing-remitting MS patients and 21 pregnant controls were seen at regular times before, during and after pregnancy. At every clinical assessment visit, samples for 25-hydroxyvitamin D (25(OH)D) measurements and quality of life questionnaires were taken. RESULTS Lower 25(OH)D concentrations were not associated with postpartum relapse risk. Pregnancy 25(OH)D levels of patients and controls were not significantly different. In controls, but not patients, higher 25(OH)D concentrations were correlated with better general health, social functioning and mental health, but not with vitality. CONCLUSION Low vitamin D levels are not associated with postpartum relapse. In pregnant MS patients, vitamin D levels are similar to levels in healthy women and are not associated with quality of life. Therefore, with regard to quality of life and postpartum relapse, no arguments were found for advising pregnant MS patients to take more vitamin D supplements than healthy women.
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Affiliation(s)
- T F Runia
- Department of Neurology, MS Center ErasMS, Erasmus MC, Rotterdam, The Netherlands
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Mieczkowski M, Żebrowski P, Wojtaszek E, Stompór T, Przedlacki J, Bartoszewicz Z, Sierdziński J, Wańkowicz Z, Niemczyk S, Matuszkiewicz-Rowińska J. Long-term cholecalciferol administration in hemodialysis patients: a single-center randomized pilot study. Med Sci Monit 2014; 20:2228-34. [PMID: 25382402 PMCID: PMC4238795 DOI: 10.12659/msm.892315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 09/25/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Data on the potent pleiotropic extraskeletal effects of vitamin D have renewed interest in its use in selected populations, including patients with chronic kidney disease, but the available data are still insufficient to make recommendations. This study assessed the long-term effect of small cholecalciferol doses on serum vitamin D, parathormone (PTH), and bone mineral density (BMD) in hemodialysis patients. MATERIAL/METHODS Nineteen patients with serum 25(OH)D <20 ng/mL were randomized into cholecalciferol (2000 IU 3×/week) and no-treatment groups, then observed for 1 year. Patients with hypercalcemia, hyperphosphatemia, and receiving vitamin D/calcimimetics were excluded. Serum 25(OH)D, 1,25(OH)2D, PTH, and alkaline phosphatase activity were examined every 2 months and BMD was measured before and after the study. RESULTS We observed normalization of serum 25(OH)D with an increase in medians from 11.3 to 44.9 ng/mL (P=0.02) in the cholecalciferol group and no change in the controls (P<0.001). Simultaneously, median serum 1,25(OH)2D increased from 18.2 to 43.1 pmol/L (P=0.02) in the cholecalciferol group and from 10.6 to 21.2 pmol/L (P=0.02) in controls (P=0.013). The treatment was associated with a small increase in serum calcium, but serum phosphate, PTH, alkaline phosphatase, and BMD remained unchanged in both groups. CONCLUSIONS Oral cholecalciferol at a dose of 2000 IU/3×/week is an effective and safe way to treat vitamin D deficiency in hemodialysis patients, leading to a significant increase in serum 1,25(OH)2D. However, it was insufficient to suppress the activity of parathyroid glands or to significantly change BMD.
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Affiliation(s)
- Mariusz Mieczkowski
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Paweł Żebrowski
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Ewa Wojtaszek
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Tomasz Stompór
- Department of Nephrology, Hypertension and Internal Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jerzy Przedlacki
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Zbigniew Bartoszewicz
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | | | - Zofia Wańkowicz
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw, Poland
| | - Stanisław Niemczyk
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw, Poland
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Ramly M, Ming MF, Chinna K, Suboh S, Pendek R. Effect of vitamin D supplementation on cardiometabolic risks and health-related quality of life among urban premenopausal women in a tropical country--a randomized controlled trial. PLoS One 2014; 9:e110476. [PMID: 25350669 PMCID: PMC4211685 DOI: 10.1371/journal.pone.0110476] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 09/14/2014] [Indexed: 12/21/2022] Open
Abstract
Background Many observational studies linked vitamin D to cardiometabolic risks besides its pivotal role in musculoskeletal diseases, but evidence from trials is lacking and inconsistent. Aim To determine whether Vitamin D supplementation in urban premenopausal women with vitamin D deficiency can improve cardiometabolic risks and health-related quality of life (HRQOL). Design A double-blind randomized controlled trial was conducted in Kuala Lumpur, Malaysia. A total of 192 vitamin D deficient (<50 nmol/l) premenopausal women were randomized to receive either vitamin D 50,000 IU or placebo once a week for 2 months and then monthly for 10 months. Primary outcomes were serum 25(OH)D, serum lipid profiles, blood pressure and HOMA-IR measured at baseline, 6 months and 12 months. HRQOL was assessed with SF-36 at baseline and 12 months. Results Ninety three and ninety-nine women were randomised into intervention and placebo groups respectively. After 12 months, there were significant differences in the serum 25(OH)D concentration (mean difference: 49.54; 95% CI: 43.94 to 55.14) nmol/l) and PTH levels (mean difference: −1.02; 95% CI: −1.67 to −0.38 pmol/l) in the intervention group compared to placebo group. There was significant difference between treatment group in both serum 25(OH)D and PTH. There was no effect of supplementation on HOMA-IR, serum lipid profiles and blood pressure (all p>0.05) between two groups. There was a small but significant improvement in HRQOL in the components of vitality (mean difference: 5.041; 95% CI: 0.709 to 9.374) and mental component score (mean difference: 2.951; 95% CI: 0.573 to 5.329) in the intervention group compared to placebo group. Conclusion Large and less frequent dosage vitamin D supplementation was safe and effective in the achievement of vitamin D sufficiency. However, there was no improvement in measured cardiometabolic risk factors in premenopausal women. Conversely vitamin D supplementation improves some components of HRQOL. Trial Registration Australian New Zealand Clinical Trial Registry ACTRN12612000452897
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Affiliation(s)
- Mazliza Ramly
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail:
| | - Moy Foong Ming
- Julius Centre University of Malaya, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Karuthan Chinna
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Suhaili Suboh
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Rokiah Pendek
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Rafiq R, Swart KMA, van Schoor NM, Deeg DJ, Lips P, de Jongh RT. Associations of serum 25-hydroxyvitamin D concentrations with quality of life and self-rated health in an older population. J Clin Endocrinol Metab 2014; 99:3136-43. [PMID: 24885628 DOI: 10.1210/jc.2013-4431] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Vitamin D deficiency has been associated with impaired physical functioning, depression, and several chronic diseases and might thereby affect quality of life and self-rated health. OBJECTIVE The aim of this study was to assess relationships of serum 25-hydroxyvitamin D [25(OH)D] with quality of life and self-rated health and to examine whether physical performance, depressive symptoms, and number of chronic diseases mediate these relationships. DESIGN We analyzed data from the Longitudinal Aging Study Amsterdam, an ongoing population-based cohort study of older Dutch individuals. MAIN OUTCOME MEASURES Serum 25(OH)D was classified into the following categories: less than 25, 25-50, and 50 nmol/L or greater. We assessed quality of life (QOL) using the Short Form-12 Health Survey (SF-12; n = 862) and self-rated health (SRH) with a single question, dichotomized into good vs poor SRH (n = 1248). RESULTS Individuals with serum 25(OH)D less than 25 nmol/L scored lower on the physical component score of the SF-12 and had a lower odds on good SRH score compared with individuals with serum 25(OH)D greater than 50 nmol/L (β (95% confidence interval) -3.9 (-6.5 to -1.3) for SF-12, and odds ratio [95% confidence interval) 0.50 (0.33-0.76) for SRH]. Physical performance, depressive symptoms, and the number of chronic diseases were associated with vitamin D status, QOL, and SRH. Adding all these potential mediators to regression models attenuated associations of 25(OH)D less than 25 nmol/L with QOL with 78% and SRH with 32%. CONCLUSION Lower 25(OH)D status is related to lower scores on QOL and SRH. A large part of the association with QOL can statistically be explained by physical performance, depressive symptoms, and the number of chronic diseases.
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Affiliation(s)
- R Rafiq
- Department of Internal Medicine and Endocrinology (R.R., P.L., R.T.d.J.), VU University Medical Center, and Department of Epidemiology and Biostatistics (K.M.A.S., N.M.v.S., D.J.D., P.L.), EMGO Institute for Health and Care Research, VU University Medical Center, VU University Medical Center, 1081 BT Amsterdam, The Netherlands
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Ahern T, Khattak A, O'Malley E, Dunlevy C, Kilbane M, Woods C, McKenna MJ, O'Shea D. Association between vitamin D status and physical function in the severely obese. J Clin Endocrinol Metab 2014; 99:E1327-31. [PMID: 24735426 DOI: 10.1210/jc.2014-1704] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Mortality is 85% higher in severely obese subjects (body mass index [BMI] > 40 kg/m(2)) than in subjects with a healthy BMI; poor physical function may be contributory. Hypovitaminosis D is common in obese subjects and is associated with physical dysfunction in the elderly. OBJECTIVE We determined the relationship between vitamin D status and physical function in severely obese subjects. DESIGN, SETTING, AND PATIENTS We conducted a clinic-based, cross-sectional study of severely obese subjects. Participants were stratified into three groups according to the Institute of Medicine (IOM) vitamin D status categorization. MAIN OUTCOME MEASURES We compared levels of self-reported activity and times taken to walk 500 m and to ascend and descend a 17-cm step 50 times. RESULTS We recruited 252 subjects (age, 43.7 ± 11.2 y; BMI, 50.7 ± 9.7 kg/m(2)); 25-hydroxyvitamin D (25OHD) concentrations were less than 30 nmol/L in 109 participants. Participants with a 25OHD > 50 nmol/L, compared to those with a 25OHD < 30 nmol/L, had the highest activity levels (3.1 ± 3.4 h/wk versus 1.5 ± 2.5 h/wk; P = .015) and the shortest 500-m walk times (6.2 ± 1.1 min versus 7.4 ± 1.5 min; P = .003). Serum 25OHD concentrations had a weakly positive association with activity level (r = 0.19; P = .008) and a moderately negative association with 500-m walk time (r = -0.343; P < .001). CONCLUSIONS Vitamin D status had a significant relationship with physical activity and physical function in this cohort of severely obese subjects. Low activity levels are likely to perpetuate the problem of hypovitaminosis D due to less time spent outdoors. Studies exploring the effects of vitamin D supplementation in this population are warranted.
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Affiliation(s)
- T Ahern
- Weight Management Service (T.A., A.K., E.O., C.D., C.W., D.O.), St Columcille's Hospital, Loughlinstown, County Dublin, Ireland; Obesity Research Group, Education and Research Centre (T.A., A.K., C.W., D.O.), Department of Endocrinology (T.A., A.K., C.W., M.J.M., D.O.), and Metabolism Laboratory (M.K., M.J.M.), St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
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Hanna K, Fassett RG, Gill E, Healy H, Kimlin M, Ross L, Ash S. Serum 25-hydroxy vitamin D concentrations are more deficient/insufficient in peritoneal dialysis than haemodialysis patients in a sunny climate. J Hum Nutr Diet 2014; 28:209-18. [PMID: 24720834 DOI: 10.1111/jhn.12234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Research has identified associations between serum 25(OH)D and a range of clinical outcomes in chronic kidney disease and wider populations. The present study aimed to investigate vitamin D deficiency/insufficiency in dialysis patients and the relationship with vitamin D intake and sun exposure. METHODS A cross-sectional study was used. Participants included 30 peritoneal dialysis (PD) (43.3% male; 56.87 ± 16.16 years) and 26 haemodialysis (HD) (80.8% male; 63.58 ± 15.09 years) patients attending a department of renal medicine. Explanatory variables were usual vitamin D intake from diet/supplements (IU day(-1) ) and sun exposure (min day(-1) ). Vitamin D intake, sun exposure and ethnic background were assessed by questionnaire. Weight, malnutrition status and routine biochemistry were also assessed. Data were collected during usual department visits. The main outcome measure was serum 25(OH)D (nm). RESULTS Prevalence of inadequate/insufficient vitamin D intake differed between dialysis modality, with 31% and 43% found to be insufficient (<50 nm) and 4% and 33% found to be deficient (<25 nm) in HD and PD patients, respectively (P < 0.001). In HD patients, there was a correlation between diet and supplemental vitamin D intake and 25(OH)D (ρ = 0.84, P < 0.001) and average sun exposure and 25(OH)D (ρ = 0.50, P < 0.02). There were no associations in PD patients. The results remained significant for vitamin D intake after multiple regression, adjusting for age, gender and sun exposure. CONCLUSIONS The results highlight a strong association between vitamin D intake and 25(OH)D in HD but not PD patients, with implications for replacement recommendations. The findings indicate that, even in a sunny climate, many dialysis patients are vitamin D deficient, highlighting the need for exploration of determinants and consequences.
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Affiliation(s)
- K Hanna
- Queensland University of Technology, Brisbane, QLD, Australia
| | - R G Fassett
- Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia.,The University of Queensland, Brisbane, QLD, Australia
| | - E Gill
- Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - H Healy
- Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - M Kimlin
- Queensland University of Technology, Brisbane, QLD, Australia
| | - L Ross
- Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - S Ash
- Queensland University of Technology, Brisbane, QLD, Australia
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Molsted S, Eiken P, Andersen JL, Eidemak I, Harrison AP. Interleukin-6 and vitamin D status during high-intensity resistance training in patients with chronic kidney disease. BIOMED RESEARCH INTERNATIONAL 2014; 2014:176190. [PMID: 24800209 PMCID: PMC3996980 DOI: 10.1155/2014/176190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/04/2014] [Accepted: 03/05/2014] [Indexed: 12/20/2022]
Abstract
Background. The aim of this study was to investigate IL-6 and 25-hydroxyvitamin D (25-OH D) associations with muscle size and muscle function in dialysis patients. Methods. Patients were included in a 16-week control period followed by 16 weeks of high-intensity resistance training thrice weekly. IL-6 and 25-OH D were analysed after an over-night fast. Muscle fibre size was analysed in biopsies from m. vastus lateralis. Muscle power was tested using a Leg Extensor Power Rig. Results. Patients (n = 36) with IL-6 ≥ 6.49 pg/ml (median) were older and had decreased muscle power and a reduced protein intake (P < 0.05) compared with patients with IL-6 < 6.49 pg/ml. IL-6 was not associated with muscle fibre size. Vitamin D deficiency (25-OH D < 50 nmol/l) was present in 51% of the patients and not associated with muscle power. IL-6 remained unchanged during the training period, whilst muscle power increased by 20-23% (P < 0.001). Conclusion. Elevated IL-6 values were associated with decreased muscle power but not with decreased muscle fibre size. Half of the patients were suffering from vitamin D deficiency, which was not associated with muscle power. IL-6 was unchanged by high-intensity resistance training in dialysis patients in this study.
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Affiliation(s)
- Stig Molsted
- Department of Cardiology, Nephrology & Endocrinology, Nordsjællands University Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark
| | - Pia Eiken
- Department of Cardiology, Nephrology & Endocrinology, Nordsjællands University Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark
- Faculty of Health and Medical Sciences, Copenhagen University, Blegdamsvej 3, 2200 Copenhagen N, Denmark
| | - Jesper L. Andersen
- Institute of Sports Medicine Copenhagen, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, 2400 Copenhagen NV, Denmark
| | - Inge Eidemak
- Department of Nephrology P, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - Adrian P. Harrison
- Department of Basic Animal and Veterinary Sciences, Faculty of Health and Medical Sciences, Copenhagen University, Grønnegårdsvej 15, 1870 Frederiksberg C, Denmark
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Oral postdialysis cholecalciferol supplementation in patients on maintenance hemodialysis: a dose-response approach. Int J Nephrol 2014; 2014:597429. [PMID: 24579049 PMCID: PMC3918706 DOI: 10.1155/2014/597429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 11/02/2013] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to evaluate the dose of postdialysis cholecalciferol needed to maintain the 25-hydroxyvitamin D [25(OH)D] levels in the optimal range of 75–150 nmol/L. Twenty-six patients who had low baseline 25(OH)D levels (mean 27.5 ± 14.9 nmol/L) were studied. The 25(OH)D levels were measured every 2 months for one year. During the first two months, all the patients received 2000 IU of cholecalciferol after each hemodialysis (=6000 IU/wk). Thereafter, the dose was individualized and adapted every 2 months by administering 1 to 6 cholecalciferol tablets (2000 IU each) per week (total weekly dose = 2000–12000 IU/wk). During cholecalciferol supplementation, the 25(OH)D concentrations rapidly increased from baseline to 140.1 ± 28.3 nmol/L at month 6 and 95.6 ± 20.9 nmol/L at month 12. At month twelve, 86% of the patients had 25(OH)D levels within the target range with a mean dose of 5917 ± 4106 IU/wk of cholecalciferol; however, the amount needed to maintain these levels varied widely from 0 (n = 2) to 12000 IU/wk (n = 5). In conclusion, postdialysis cholecalciferol prescription is quite effective in correcting vitamin D deficiency/insufficiency, but the amount of cholecalciferol needed to maintain the 25(OH)D levels within the optimal range over the long-term varies widely among patients and must be individualized.
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Browne OT, Allgar V, Bhandari S. Analysis of factors predicting mortality of new patients commencing renal replacement therapy 10 years of follow-up. BMC Nephrol 2014; 15:20. [PMID: 24444187 PMCID: PMC3902419 DOI: 10.1186/1471-2369-15-20] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 01/16/2014] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The natural history of patients commencing dialysis in East Yorkshire is not well characterised and there is little convincing evidence which has studied the impact of potential factors prior to commencement of renal replacement therapy (RRT) at predicting mortality during dialysis. The aim of this study was to examine the previously published 5-year data on end stage renal disease and co-morbid risk factors for mortality at 10 years. METHODS An observational cohort study of subjects commencing dialysis in 2001/02 in East Yorkshire with a mean follow up from dialysis initiation of 8.8 years. Predictors of mortality were determined by univariate, multivariate analysis and survival via Kaplan-Meier analysis. Assessment of the utility of the Tangri risk calculator was carried out in addition to slope change in eGFR prior to dialysis commencement. RESULTS Baseline characteristics and the preferred mode of dialysis remained concordant with the original trial. The mortality rate at the end of the study period was 60% (56/94) with 30% (29) of patients having been transplanted. Highlighted in the 5 year data a significant proportion of mortality was made up of vascular disease and sepsis (71%) but this proportion had decreased (57%) by 10 years. Cardiac disease was the commonest cause of death but notably in 18% of patients, death was related to dialysis or withdrawal of treatment. Vascular disease and diabetes remained independent risk factors and predicative of mortality. Calcium-phosphate product which was associated in the early years with mortality was not in later years. Use of the risk calculator was predictive of commencement of RRT but not mortality but slope change in eGFR was predictive of mortality. CONCLUSIONS Although diabetes and vascular disease remained predictive of mortality, interestingly calcium-phosphate levels are no longer significant and may be a more specific predictor of early cardiac mortality. Slope eGFR changes prior to RRT are a predictor of mortality. We speculate that aggressive management of cardiac risk factors in addition to early transplantation may be key to influencing the impact of survival in this cohort in addition to possible measures to delay renal progression.
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Affiliation(s)
| | - Victoria Allgar
- Department of Statistics, Hull York Medical School and University of Hull Hull, UK
| | - Sunil Bhandari
- Hull York Medical School, Hull, East Yorkshire, UK
- Department of Renal Medicine, Hull and East Yorkshire Hospitals NHS Trust, Kingston upon Hull HU32JZ, UK
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Lopes MR, Ribeiro PAB, Ledur P, Souza GC, Clausell N, Schaan BD. Vitamin D insufficiency is associated with lower physical function in patients with heart failure and diabetes. J Diabetes Res 2014; 2014:320930. [PMID: 25243195 PMCID: PMC4158566 DOI: 10.1155/2014/320930] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 08/11/2014] [Indexed: 12/27/2022] Open
Abstract
Vitamin D deficiency is frequent among patients with heart failure (HF) and diabetes, disorders associated with exercise intolerance and muscle weakness. This study aims to search for associations between vitamin D sufficiency and physical function indexes in patients with HF and diabetes. A cross-sectional study of 146 HF patients, 39.7% with diabetes, at a Brazilian tertiary outpatient clinic was performed. Patients underwent clinical evaluation, 6-minute walk test (6 MWT), handgrip strength, physical activity level (IPAQ), and biochemical evaluations including serum 25-hydroxyvitamin D. Classification was done according to vitamin D status (≥ 30 ng/dL, sufficient) and presence/absence of diabetes in vitamin sufficient, no diabetes (DS-C, n = 25), vitamin sufficient, diabetes (DS-DM, n = 18), vitamin deficient, no diabetes (DD-C, n = 63), and vitamin deficient, diabetes (DD-DM, n = 40). Patients age was 55.4 ± 8 yrs; 70.5% had vitamin D deficiency. Clinical characteristics were similar among groups. Total time expended in physical activity was similar among groups (P = 0.26). DS-C covered higher distances in the 6 MWT (392 ± 60 m) versus DD-DM (309 ± 116 m); P = 0.024. Handgrip strength was similar among groups but tended to lower levels in DD-DM (P = 0.074) even after being adjusted to physical activity (P = 0.069). Vitamin D deficiency can influence physical function in HF diabetic patients.
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Affiliation(s)
- M. R. Lopes
- Endocrinology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paula A. B. Ribeiro
- Cardiology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Priscila Ledur
- Endocrinology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gabriela C. Souza
- Department of Internal Medicine, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Cardiology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Nadine Clausell
- Cardiology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Internal Medicine, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Cardiology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Beatriz D. Schaan
- Endocrinology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Cardiology Post-Graduate Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Internal Medicine, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Rua Ramiro Barcelos 2350, Prédio 12, 4° Andar, 90035-003 Porto Alegre, RS, Brazil
- *Beatriz D. Schaan:
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Anand S, Chertow GM, Johansen KL, Grimes B, Dalrymple LS, Kaysen GA, Kurella Tamura M. Vitamin D deficiency and mortality in patients receiving dialysis: the Comprehensive Dialysis Study. J Ren Nutr 2013; 23:422-7. [PMID: 23876600 PMCID: PMC4077719 DOI: 10.1053/j.jrn.2013.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/07/2013] [Accepted: 05/11/2013] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Although several studies have shown poorer survival among individuals with 25-hydroxy (OH) vitamin D deficiency, data on patients receiving dialysis are limited. Using data from the Comprehensive Dialysis Study (CDS), we tested the hypothesis that patients new to dialysis with low serum concentrations of 25-OH vitamin D would experience higher mortality and hospitalizations. DESIGN The CDS is a prospective cohort study.We recruited participants from 56 dialysis units located throughout the United States. SUBJECTS AND INTERVENTION We obtained data on demographics, comorbidites, and laboratory values from the CDS Patient Questionnaire as well as the Medical Evidence Form (CMS form 2728). Participants provided baseline serum samples for 25-OH vitamin D measurements. MAIN OUTCOME MEASURE We ascertained time to death and first hospitalization as well as number of first-year hospitalizations via the U.S. Renal Data System standard analysis files. We used Cox proportional hazards to determine the association between 25-OH vitamin D tertiles and survival and hospitalization. For number of hospitalizations in the first year, we used negative binomial regression. RESULTS The analytic cohort was composed of 256 patients with Patient Questionnaire data and 25-OH vitamin D concentrations. The mean age of participants was 62 (±14.0) years, and mean follow-up was 3.8 years. Patients with 25-OH vitamin D concentrations in the lowest tertile (<10.6 ng/mL) at the start of dialysis experienced higher mortality (adjusted hazard ratio 1.75, 95% confidence interval [CI] 1.03-2.97) as well as hospitalization (adjusted hazard ratio 1.76, 95% CI 1.24-2.49). Patients in the lower 2 tertiles (<15.5 ng/mL) experienced a higher rate of hospitalizations in the first year (incidence rate ratio 1.70 [95% CI 1.06-2.72] for middle tertile, 1.66 [95% CI 1.10-2.51] for lowest tertile). CONCLUSION We found a sizeable increase in mortality and hospitalization for patients on dialysis with severe 25-OH vitamin D deficiency.
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Affiliation(s)
- Shuchi Anand
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, California.
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Bennett PN, Daly RM, Fraser SF, Haines T, Barnard R, Ockerby C, Kent B. The impact of an exercise physiologist coordinated resistance exercise program on the physical function of people receiving hemodialysis: a stepped wedge randomised control study. BMC Nephrol 2013; 14:204. [PMID: 24070232 PMCID: PMC3850647 DOI: 10.1186/1471-2369-14-204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 09/24/2013] [Indexed: 12/02/2022] Open
Abstract
Background Exercise during hemodialysis treatments improves physical function, markers of cardiovascular disease and quality of life. However, exercise programs are not a part of standard therapy in the vast majority of hemodialysis clinics internationally. Hemodialysis unit-based accredited exercise physiologists may contribute to an increased intradialytic exercise uptake and improved physical function. Methods and design This is a stepped wedge cluster randomised controlled trial design. A total of 180 participants will be recruited from 15 community satellite hemodialysis clinics in a large metropolitan Australian city. Each clinic will represent a cluster unit. The stepped wedge design will consist of three groups each containing five randomly allocated cluster units, allocated to either 12, 24 or 36 weeks of the intervention. The intervention will consist of an accredited exercise physiologist-coordinated program consisting of six lower body resistance exercises using resistance elastic bands and tubing. The resistance exercises will include leg abduction, plantar flexion, dorsi flexion, straight-leg/bent-knee raise, knee extension and knee flexion. The resistance training will incorporate the principle of progressive overload and completed in a seated position during the first hour of hemodialysis treatment. The primary outcome measure is objective physical function measured by the 30-second sit to stand test. Secondary outcome measures include the 8-foot timed-up-and-go test, the four square step test, quality of life, cost-utility analysis, uptake and involvement in community activity, self-reported falls, fall’s confidence, medication use, blood pressure and morbidity (hospital admissions). Discussion The results of this study are expected to determine the efficacy of an accredited exercise physiologist supervised resistance training on the physical function of people receiving hemodialysis and the cost-utility of exercise physiologists in hemodialysis centres. This may contribute to intradialytic exercise as standard therapy using an exercise physiologist workforce model. Trial registration Current Controlled Trials ACTRN12612001223820.
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Affiliation(s)
- Paul N Bennett
- Centre for Nursing Research - Deakin University and Monash Health Partnership, Clayton, Victoria 3168, Australia.
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Ecemis GC, Atmaca A. Quality of life is impaired not only in vitamin D deficient but also in vitamin D-insufficient pre-menopausal women. J Endocrinol Invest 2013; 36:622-7. [PMID: 23511484 DOI: 10.3275/8898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Vitamin D deficiency may be more common in pre-menopausal women than previously thought and it may impair quality of life (QoL). AIM The aim of this study is to evaluate QoL in pre-menopausal women with vitamin D deficiency and insufficiency. SUBJECTS AND METHODS This is a cross-sectional study in which subjects were enrolled between September 1st and November 30th, 2011. Healthy premenopausal women with weakness, fatigue and non-specific pain were assigned into three groups according to their 25- hydroxyvitamin D (25-OHD) levels: ≤20 ng/ml (vitamin D deficient, no.=30), 21-29 ng/ml (vitamin D insufficient, no.=30) and ≥30 ng/ml (vitamin D sufficient, no.=20). Short form-36 (SF- 36) scores, age, calcium (Ca), phosphorus (P), and PTH levels were compared among the groups and correlations of SF-36 scores with age, serum 25-OHD, Ca, P, and PTH were done. RESULTS There were significant differences among the groups with regard to PTH (p=0.008), physical component score (p=0.02), mental component score (p=0.035), physical functioning score (p=0.0001), and vitality score (p=0.05). Apart from PTH and physical functioning score, the results were significant when vitamin D-insufficient and -sufficient women were compared. Serum 25-OHD, but not PTH was correlated with some of the scales of SF-36. CONCLUSIONS Some components of QoL are impaired not only in vitamin D deficient but also in insufficient pre-menopausal women, and impairment is related to 25-OHD rather than PTH levels.
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Affiliation(s)
- G C Ecemis
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ondokuz Mayis University School of Medicine, Kurupelit Samsun 55139, Turkey
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Enia G, Torino C, Panuccio V, Tripepi R, Postorino M, Aliotta R, Bellantoni M, Tripepi G, Mallamaci F, Zoccali C. Asymptomatic pulmonary congestion and physical functioning in hemodialysis patients. Clin J Am Soc Nephrol 2013; 8:1343-8. [PMID: 23580785 DOI: 10.2215/cjn.11111012] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND OBJECTIVES Poor physical performance is common in patients with kidney failure on dialysis (CKD-5D). Whether lung congestion, a predictable consequence of cardiomyopathy and fluid overload, may contribute to the low physical performance of CKD-5D patients has not been investigated in hemodialysis patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This study investigated the relationship between the physical functioning scale of the Kidney Disease Quality of Life Short Form and a validated ultrasonographic measure of lung water in a multicenter survey of 270 hemodialysis patients studied between 2009 and 2010. RESULTS Moderate to severe lung congestion by lung ultrasonography was observed in 156 (58%) patients; among these, 60 (38%) were asymptomatic (New York Heart Association [NYHA] class I). On univariate analysis, physical functioning was inversely associated with lung water in the whole group (r=-0.22; P<0.001) and in the subgroup of asymptomatic patients (r=-0.40; P=0.002). Age (r=-0.45; P<0.001) and past cardiovascular events (r=-0.22; P=0.002) were also inversely associated with physical functioning, whereas albumin (r=0.23; P<0.001) was directly associated with the same parameter. NYHA class correlated strongly with physical functioning (r=-0.52; P<0.001). In a multiple regression analysis, both NYHA class and lung water maintained an independent association with physical functioning, whereas albumin and background cardiovascular events failed to independently relate with the same outcome. CONCLUSIONS Symptomatic and asymptomatic lung congestion is associated with poor physical functioning in hemodialysis patients. This association is independent of NYHA, suggesting that this measurement and NYHA may have complementary value to explain the variability in physical performance in hemodialysis patients.
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Affiliation(s)
- Giuseppe Enia
- Nephrology, Dialysis, Hypertension, and Renal Transplantation Unit, Azienda Ospedaliera, Reggio Calabria, Italy.
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Hewitt NA, O'Connor AA, O'Shaughnessy DV, Elder GJ. Effects of cholecalciferol on functional, biochemical, vascular, and quality of life outcomes in hemodialysis patients. Clin J Am Soc Nephrol 2013; 8:1143-9. [PMID: 23493381 DOI: 10.2215/cjn.02840312] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Observational studies suggest that calciferol supplementation may improve laboratory and patient-level outcomes of hemodialysis patients with reduced 25-hydroxyvitamin D [25(OH)D] levels. This randomized controlled trial examined effects of cholecalciferol supplementation in patients on hemodialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Sixty patients with 25(OH)D levels ≤24 ng/ml (≤60 nmol/L) were randomized to receive 50,000 IU oral cholecalciferol or placebo, once weekly for 8 weeks and then monthly for 4 months. At baseline (autumn 2011) and 6 months, testing evaluated muscle strength, functional capacity, laboratory parameters, pulse wave velocity (PWV), and health-related quality of life (HRQOL) using the Kidney Disease Quality of Life-36 survey. RESULTS Patients were well matched by treatment allocation. Median age was 62 years (range, 20-86), 52% were women, 55% had a history of diabetes, and mean serum 25(OH)D was 17±5 ng/ml (43±13 nmol/L). Patients were assessed over 6 months by repeated-measures ANOVA. Patients allocated to cholecalciferol had significantly higher values of 25(OH)D (P<0.001), 1,25-dihydroxyvitamin D (P=0.04), and tartrate-resistant acid phosphatase-5b) (P=0.04) and a greater reduction in phosphorus values (P=0.03) than placebo-treated patients Values of serum calcium, intact parathyroid hormone, and episodes of hypercalcemia and hyperphosphatemia did not differ significantly between the groups. No significant differences were detected in muscle strength, functional capacity, PWV, or HRQOL. CONCLUSIONS In this randomized controlled trial, patients supplemented with cholecalciferol had higher 25(OH)D, 1,25-dihydroxyvitamin D, and tartrate-resistant acid phosphatase-5b levels, without increased calcium or phosphorus values. However, no effects were detected in muscle strength, functional capacity, PWV, or HRQOL.
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Affiliation(s)
- Nathan A Hewitt
- Postgraduate Medical School, University of Notre Dame, Sydney, Australia
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Shaffi K, Tighiouart H, Scott T, Lou K, Drew D, Weiner D, Sarnak M. Low 25-hydroxyvitamin D levels and cognitive impairment in hemodialysis patients. Clin J Am Soc Nephrol 2013; 8:979-86. [PMID: 23449769 DOI: 10.2215/cjn.10651012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVES 25-hydroxyvitamin D (25[OH]D) deficiency and cognitive impairment are both prevalent in hemodialysis patients in the United States. This study tested the hypothesis that 25(OH)D deficiency may be associated with cognitive impairment because of its vasculoprotective, neuroprotective, and immune-modulatory properties. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This cross-sectional analysis involved 255 patients enrolled in the Dialysis and Cognition Study between 2004 and 2012. In linear regression models, 25(OH)D was the exposure variable; it was used first as a continuous variable and then stratified as deficient (<12 ng/ml), insufficient (12 to <20 ng/ml), and sufficient (≥20 ng/ml). Principal component analysis was used to obtain the memory and the executive function domains from the individual neurocognitive tests. Scores on individual tests as well as on the memory and executive function domains were the outcome variables. Multivariable models were adjusted for age, sex, race, education, and other potential confounding variables. RESULTS Mean serum 25(OH)D ± SD was 17.2±7.4 ng/ml, with 14%, 55%, and 31% of patients in the deficient, insufficient, and sufficient groups, respectively. Patients in the deficient group were more likely to be women, African American, and diabetic and to have longer dialysis vintage. Higher 25(OH)D levels were independently associated with better performance on several tests of executive function (mean difference on component executive score, 0.16 [95% confidence interval, 0.04-0.28; P=0.01] for each SD higher 25[OH]D). No association was seen with tests assessing memory. CONCLUSIONS 25(OH)D deficiency in hemodialysis patients is associated with worse cognitive function, particularly in domains that assess executive function.
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Affiliation(s)
- Kamran Shaffi
- Division of Nephrology, Department of Medicine, Tufts Medical Center, Boston, Massachusetts 02111, USA
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Singer RF. Vitamin D in dialysis: defining deficiency and rationale for supplementation. Semin Dial 2012; 26:40-6. [PMID: 23017052 DOI: 10.1111/sdi.12010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Vitamin D status is determined by the serum concentration of one of its metabolites, 25-hydroxy-D. Defining vitamin D deficiency based on its classical roles in gut calcium absorption and bone mineralization is problematic in dialysis patients and, until recently, was ignored in the nephrology literature. The newly recognized nonclassical functions of vitamin D include effects on the immune system, cardiovascular disease, and cancer. The nonclassical effects are likely to be equally relevant in the dialysis population, but suffer from a lack of strong evidence on which to base therapeutic targets. Past medical opinion in the nondialysis population warned that higher dose vitamin D supplementation may be toxic and was unnecessary. This is because older supplementation recommendations were based on early twentieth century studies using cod-liver oil to treat rickets. The clinical resolution of rickets requires a relatively low dose of vitamin D. Current vitamin D guidelines generally target higher 25-hydroxy-D levels of 30 ng/ml, based on optimizing markers of bone health. This results in very high estimates of 50-100% for the prevalence of vitamin D deficiency in dialysis patients. This review examines the relevance of data on the classical and nonclassical effects of vitamin D in dialysis patients. An evidence-based dosing regimen for use in dialysis patients is suggested to safely and reliably achieve vitamin D sufficiency.
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Affiliation(s)
- Richard Francis Singer
- Department of Renal Medicine, The Canberra Hospital, Australian National University Medical School, Woden, ACT, Australia.
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Enia G, Tripepi R, Panuccio V, Torino C, Garozzo M, Battaglia GG, Zoccali C. Pulmonary congestion and physical functioning in peritoneal dialysis patients. Perit Dial Int 2012; 32:531-6. [PMID: 22942271 DOI: 10.3747/pdi.2010.00250] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
PURPOSE Decline in physical function is commonly observed in patients with kidney failure on dialysis. Whether lung congestion, a predictable consequence of cardiomyopathy and fluid overload, may contribute to the low physical functioning of these patients has not been investigated. METHODS In 51 peritoneal dialysis (PD) patients, we investigated the cross-sectional association between the physical functioning scale of the Kidney Disease Quality of Life Short Form (KDQOL-SF: Rand Corporation, Santa Monica, CA, USA) and an ultrasonographic measure of lung water recently validated in dialysis patients. The relationship between physical functioning and lung water was also analyzed taking into account the severity of dyspnea measured using the New York Heart Association (NYHA) classification currently used to grade the severity of heart failure. RESULTS Evidence of moderate-to-severe lung congestion was evident in 20 patients, and this alteration was asymptomatic (that is, NHYHA class I) in 11 patients (55%). On univariate analysis, physical functioning was inversely associated with lung water (r = -0.48, p < 0.001), age (r = -0.44, p = 0.001), previous cardiovascular events (r = -0.46, p = 0.001), and fibrinogen (r = -0.34, p = 0.02). Physical functioning was directly associated with blood pressure, the strongest association being with diastolic blood pressure (r = 0.38, p = 0.006). The NYHA class correlated inversely with physical functioning (r = -0.51, p < 0.001). In multiple regression analysis, only lung water and fibrinogen remained independent correlates of physical functioning. The NYHA class failed to maintain its independent association. CONCLUSIONS This cross-sectional study supports the hypothesis that symptomatic and asymptomatic lung congestion is a relevant factor in the poor physical functioning of patients on PD.
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Affiliation(s)
- Giuseppe Enia
- Nephrology, Dialysis, Hypertension and Renal Transplantation Unit, Azienda Ospedaliera, Reggio Calabria, Italy.
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Abstract
BACKGROUND/OBJECTIVE Vitamin D deficiency is highly prevalent in Saudi Arabia. The study objective was to compare vitamin D deficiency in Saudi married couples. SUBJECTS/METHODS This cross-sectional study was carried out in the Royal Guard primary health care center in Riyadh, Saudi Arabia on a consecutive sample of 50 Saudi married couples attending the center without complaints related to vitamin D deficiency. Data were collected through an interview questionnaire addressing the risk factors and dietary habits. Quantitative determination of total 25-hydroxy vitamin D in blood was done by Electro-Chemical Luminescence assay. Fieldwork was carried out from December 2010 to January 2011. RESULTS Men had higher sun exposure (P = 0.001), more use of light clothes at home (P = 0.002) and more intake of milk (P = 0.023) and soft drinks (P = 0.001). Vitamin D was higher in men with mean difference about 9 nmol/l (P < 0.001). The prevalence of vitamin D deficiency (<25 nmol/l) was 70% in women, compared with 40% in men (P = 0.001). Multivariate analysis identified male gender, physical activity and the intake of milk as statistically significant positive independent predictors of vitamin D level, adjusted for factors as age, sun exposure, clothing, skin color, BMI, soft drinks and animal protein intake. CONCLUSION Vitamin D deficiency is very high among Saudi married couples, especially wives. Female gender is an independent predictor of lower vitamin D level, in addition to sedentary lifestyle and low milk consumption. There is a need to revise the levels set for the diagnosis of vitamin D deficiency or insufficiency in the study region.
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Motsinger S, Lazovich D, MacLehose RF, Torkelson CJ, Robien K. Vitamin D intake and mental health-related quality of life in older women: the Iowa Women's Health Study. Maturitas 2011; 71:267-73. [PMID: 22209201 DOI: 10.1016/j.maturitas.2011.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 12/02/2011] [Accepted: 12/03/2011] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Vitamin D deficiency and mood disorders are both prevalent among the elderly. We evaluated the association between vitamin D intake and mental health-related quality of life (QOL) among elderly women participating in a large population-based study. STUDY DESIGN This study was a cross-sectional analysis of the Iowa Women's Health Study, a prospective study of cancer risk factors among post-menopausal women in Iowa that began in 1986. Additional survey data was collected from the cohort members in 1987, 1989, 1992, 1997, and 2004. Data for this analysis came from the 2004 questionnaire. MAIN OUTCOME MEASURE Mental health-related QOL was assessed using five scales from the Medical Outcomes Study 36-item Short-form Health Survey. QOL scores were analyzed as continuous variables using linear regression, controlling for age, energy intake, BMI, education, smoking, living arrangement, antidepressant usage, comorbidity history, and physical activity. RESULTS Low vitamin D intake (<400 IU/day) was associated with poorer QOL scores compared to women with higher intake (≥400 IU/day). Differences in QOL scores by vitamin D intake group were attenuated with multivariable adjustment, but a significant overall association between vitamin D and QOL scores persisted. Further adjustment for physical activity attenuated all differences as well as the overall association between vitamin D and QOL scores. CONCLUSIONS Women who consumed <400 IU/day of vitamin D had significantly lower mental health-related QOL compared to those who consumed ≥400 IU/day. Meeting dietary vitamin D recommendations is a potential method for improving QOL among the elderly.
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Affiliation(s)
- Sarah Motsinger
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, 1300 S. Second St., Suite 300, Minneapolis, MN 55454, USA.
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