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Vitamin D Status and Parkinson's Disease. Brain Sci 2022; 12:brainsci12060790. [PMID: 35741675 PMCID: PMC9221008 DOI: 10.3390/brainsci12060790] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 02/04/2023] Open
Abstract
Parkinson’s disease (PD) is a complex and progressive neurodegenerative disease, characterized by resting tremor, rigidity, slowness of movement, and postural instability. Furthermore, PD is associated with a wide spectrum of non-motor symptoms that add to overall disability. In recent years, some investigations, from basic science to clinical applications, have focused on the role of vitamin D in PD, often with controversial findings. Vitamin D has widespread effects on several biological processes in the central nervous system, including neurotransmission in dopaminergic neural circuits. Various studies have recorded lower levels of vitamin D in PD patients than in healthy controls. Low vitamin D status has also been correlated with the risk for PD and motor severity, whereas less is known about the effects vitamin D has on cognitive function and other non-motor symptoms. This review aims to better characterize the correlation between vitamin D and PD, clarify the role of vitamin D in PD prevention and treatment, and discuss avenues for future research in this field.
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Redenšek S, Kristanc T, Blagus T, Trošt M, Dolžan V. Genetic Variability of the Vitamin D Receptor Affects Susceptibility to Parkinson’s Disease and Dopaminergic Treatment Adverse Events. Front Aging Neurosci 2022; 14:853277. [PMID: 35517045 PMCID: PMC9063754 DOI: 10.3389/fnagi.2022.853277] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
Vitamin D is a lipid-soluble molecule and an important transcriptional regulator in many tissues and organs, including the brain. Its role has been demonstrated also in Parkinson’s disease (PD) pathogenesis. Vitamin D receptor (VDR) is responsible for the initiation of vitamin D signaling cascade. The aim of this study was to assess the associations of VDR genetic variability with PD risk and different PD-related phenotypes. We genotyped 231 well characterized PD patients and 161 healthy blood donors for six VDR single nucleotide polymorphisms, namely rs739837, rs4516035, rs11568820, rs731236, rs2228570, and rs1544410. We observed that VDR rs2228570 is associated with PD risk (p < 0.001). Additionally, we observed associations of specific VDR genotypes with adverse events of dopaminergic treatment. VDR rs1544410 (GG vs. GA + AA: p = 0.005; GG vs. GA: p = 0.009) was associated with the occurrence of visual hallucinations and VDR rs739837 (TT vs. GG: p = 0.036), rs731236 (TT vs. TC + CC: p = 0.011; TT vs. TC: p = 0.028; TT vs. CC: p = 0.035), and rs1544410 (GG vs. GA: p = 0.014) with the occurrence of orthostatic hypotension. We believe that the reported study may support personalized approach to PD treatment, especially in terms of monitoring vitamin D level and vitamin D supplementation in patients with high risk VDR genotypes.
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Affiliation(s)
- Sara Redenšek
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tilen Kristanc
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tanja Blagus
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Maja Trošt
- Department of Neurology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Vita Dolžan
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- *Correspondence: Vita Dolžan,
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Vitamin D and Parkinson's Disease. Nutrients 2022; 14:nu14061220. [PMID: 35334877 PMCID: PMC8953648 DOI: 10.3390/nu14061220] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 02/04/2023] Open
Abstract
Vitamin D is a fat-soluble secosteroid, traditionally considered a key regulator of bone metabolism, calcium and phosphorous homeostasis. Its action is made possible through the binding to the vitamin D receptor (VDR), after which it directly and indirectly modulates the expression of thousands of genes. Vitamin D is important for brain development, mature brain activity and associated with many neurological diseases, including Parkinson’s disease (PD). High frequency of vitamin D deficiency in patients with Parkinson’s disease compared to control population was noted nearly twenty years ago. This finding is of interest given vitamin D’s neuroprotective effect, exerted by the action of neurotrophic factors, regulation of nerve growth or through protection against cytotoxicity. Vitamin D deficiency seems to be related to disease severity and disease progression, evaluated by Unified Parkinson’s Disease Rating Scale (UPDRS) and Hoehn and Yahr (H&Y) scale, but not with age of PD onset and duration of disease. Additionally, fall risk has been associated with lower vitamin D levels in PD. However, while the association between vitamin D and motor-symptoms seems to be possible, results of studies investigating the association with non-motor symptoms are conflicting. In addition, very little evidence exists regarding the possibility to use vitamin D supplementation to reduce clinical manifestations and disability in patients with PD. However, considering the positive balance between potential benefits against its limited risks, vitamin D supplementation for PD patients will probably be considered in the near future, if further confirmed in clinical studies.
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Lv L, Tan X, Peng X, Bai R, Xiao Q, Zou T, Tan J, Zhang H, Wang C. The relationships of vitamin D, vitamin D receptor gene polymorphisms, and vitamin D supplementation with Parkinson's disease. Transl Neurodegener 2020; 9:34. [PMID: 32867847 PMCID: PMC7460797 DOI: 10.1186/s40035-020-00213-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/06/2020] [Indexed: 12/13/2022] Open
Abstract
In recent years, many studies have investigated the correlations between Parkinson's disease (PD) and vitamin D status, but the conclusion remains elusive. The present review focuses on the associations between PD and serum vitamin D levels by reviewing studies on the associations of PD with serum vitamin D levels and vitamin D receptor (VDR) gene polymorphisms from PubMed, Web of Science, Cochrane Library, and Embase databases. We found that PD patients have lower vitamin D levels than healthy controls and that the vitamin D concentrations are negatively correlated with PD risk and severity. Furthermore, higher vitamin D concentrations are linked to better cognitive function and mood in PD patients. Findings on the relationship between VDR gene polymorphisms and the risk of PD are inconsistent, but the FokI (C/T) polymorphism is significantly linked with PD. The occurrence of FokI (C/T) gene polymorphism may influence the risk, severity, and cognitive ability of PD patients, while also possibly influencing the effect of Vitamin D3 supplementation in PD patients. In view of the neuroprotective effects of vitamin D and the close association between vitamin D and dopaminergic neurotransmission, interventional prospective studies on vitamin D supplementation in PD patients should be conducted in the future.
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Affiliation(s)
- Lingling Lv
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xuling Tan
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xinke Peng
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Rongrong Bai
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Qile Xiao
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Ting Zou
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Jieqiong Tan
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, 410078, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, 410078, China
| | - Hainan Zhang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Chunyu Wang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China.
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, 410011, China.
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Nocturnal blood pressure changes in Parkinson's disease: correlation with autonomic dysfunction and vitamin D levels. Acta Neurol Belg 2020; 120:915-920. [PMID: 30847668 DOI: 10.1007/s13760-019-01113-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/27/2019] [Indexed: 12/31/2022]
Abstract
Nocturnal blood pressure (BP) changes are an indicator of autonomic dysfunction. We aim to investigate the correlation between nocturnal blood pressure (BP) variability, vitamin D levels and Parkinson's disease severity (PD) in this study. Thirty-five patients with PD participated in the study. Disease severity was evaluated by United Parkinson's Disease Rating Scale (UPDRS) and Hoehn and Yahr Scale (HYS). Equivalent levodopa dose was calculated and 25-hydroxyvitamin D levels were measured. The Non-Motor Symptom Questionnaire (NMSQ) was applied to all patients. Ambulatory BP monitoring for 24 h was established. Patients were divided into three groups according to nocturnal BP results: dippers (normal finding-a decline in mean nighttime BP of more than 10%); non-dippers (pathological-a decline in mean nighttime BP of less than 10%); reverse dippers (pathological-an increase in mean nighttime BP) .The mean score of the NMSQ was higher in the group with HYS > 2 (p = 0.050). Four patients were dipper, 17 patients were non-dipper and 16 patients were reverse dipper. There was no significant difference between the three groups in terms of age, gender, disease duration, age of the disease onset, disease stage, disease duration, dopamine agonist usage, levodopa equivalent dose, vitamin D level and NMSQ scores. NMSQ scores are high in advanced PD. Ambulatory BP monitoring is useful in detecting autonomic dysfunction. The number of patients with non-dipping and reverse dipping is high in PD, independent from PD severity, drug dose, vitamin D and the other NMS symptoms.
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Fullard ME, Duda JE. A Review of the Relationship Between Vitamin D and Parkinson Disease Symptoms. Front Neurol 2020; 11:454. [PMID: 32536905 PMCID: PMC7267215 DOI: 10.3389/fneur.2020.00454] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/28/2020] [Indexed: 12/20/2022] Open
Abstract
Vitamin D is a fat-soluble secosteroid that exerts its effects by binding to the vitamin D receptor (VDR), through which it directly and indirectly modulates the expression of hundreds to thousands of genes. While originally known for its role in regulating calcium homeostasis and metabolism, vitamin D is now associated with many other health conditions, including Parkinson's disease (PD). A high prevalence of vitamin D deficiency has been noted in PD for at least the past two decades. These findings, along with the discovery that the VDR and 1α-hydroxylase, the enzyme that converts vitamin D to its active form, are highly expressed in the substantia nigra, led to the hypothesis that inadequate levels of circulating vitamin D may lead to dysfunction or cell death within the substantia nigra. Studies investigating the relationship between vitamin D status and PD, however, have been inconsistent. Two prospective studies examined the association between mid-life vitamin D levels and risk of PD and produced conflicting results-one demonstrated an increased risk for PD with lower mid-life vitamin D levels, and the other showed no association between vitamin D and PD risk. One of the most consistent findings in the literature is the inverse association between serum vitamin D level and motor symptom severity in cross-sectional studies. While these data suggest that vitamin D may modify the disease, another likely explanation is confounding due to limited mobility. Fall risk has been associated with vitamin D in PD, but more study is needed to determine if supplementation decreases falls, which has been demonstrated in the general population. The association between vitamin D and non-motor symptoms is less clear. There is some evidence that vitamin D is associated with verbal fluency and verbal memory in PD. Studies in PD have also shown associations between vitamin D status and mood, orthostatic hypotension and olfactory impairment in PD. While more research is needed, given the numerous potential benefits and limited risks, vitamin D level assessment in PD patients and supplementation for those with deficiency and insufficiency seems justified.
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Affiliation(s)
| | - John E. Duda
- Parkinson's Disease Research, Education and Clinical Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, United States
- Department of Neurology, University of Pennsylvania School of Medicine, Philadelphia, PA, United States
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Impact of vitamin D on mobilization, pulmonary function tests, grip strength and functionality in patients with spinal cord injury: A cross-sectional study. JOURNAL OF SURGERY AND MEDICINE 2020. [DOI: 10.28982/josam.689130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhang H, Zhang J, Mao C, Li K, Wang F, Chen J, Liu C. Relationship between 25-Hydroxyvitamin D, bone density, and Parkinson's disease symptoms. Acta Neurol Scand 2019; 140:274-280. [PMID: 31389003 DOI: 10.1111/ane.13141] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/03/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Vitamin D deficiency is widespread in patients with Parkinson's disease (PD). Our aim was to determine whether serum vitamin D levels correlated with bone mineral density (BMD) and non-motor symptoms in patients with PD. MATERIALS & METHODS A consecutive series of 182 patients with PD and 185 healthy controls were included. Serum 25-hydroxyvitamin D (25[OH]D) levels were measured by immunoassay, while BMD of the lumbar spine and femoral neck was measured by dual-energy X-ray absorptiometry. Associations between serum vitamin D levels and clinical data were evaluated using partial correlation analysis. RESULTS Patients with PD had significantly lower serum 25(OH)D levels relative to healthy controls (49.75 ± 14.11 vs 43.40 ± 16.51, P < 0.001). Furthermore, PD patients with lower vitamin D levels had a significantly higher frequency of falls (P = 0.033) and insomnia (P = 0.015). They also had significantly higher scores for the Pittsburgh Sleep Quality Index (PSQI; P = 0.014), depression (P = 0.020), and anxiety (P = 0.009). Finally, patients with PD also had a significantly lower mean BMD of the lumbar spine (P = 0.011) and femoral neck (P < 0.001). After adjusting for age, sex, and body mass index, vitamin D levels significantly correlated with falls, insomnia, and scores for the PSQI, depression, and anxiety. CONCLUSIONS In patients with PD, vitamin D levels significantly correlated with falls and some non-motor symptoms. However, no associations were found between BMD and the serum 25(OH)D levels in patients with PD. Thus, vitamin D supplementation is a potential therapeutic for non-motor PD symptoms.
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Affiliation(s)
- Hui‐Jun Zhang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
| | - Jin‐Ru Zhang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
| | - Cheng‐Jie Mao
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
| | - Kai Li
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
| | - Fen Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience Soochow University Suzhou China
| | - Jing Chen
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
| | - Chun‐Feng Liu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University Suzhou China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience Soochow University Suzhou China
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Laird EJ, McNicholas T, O'Halloran AM, Healy M, Molloy AM, Carey D, O'Connor D, McCarroll K, Kenny RA. Vitamin D Status Is Not Associated With Orthostatic Hypotension in Older Adults. Hypertension 2019; 74:639-644. [PMID: 31327261 DOI: 10.1161/hypertensionaha.119.13064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
There has been much interest in investigating vitamin D status with orthostatic hypotension. However, studies have been small, inconsistent, and with a lack of standardization. The aim of this study was to investigate the association with vitamin D status in a large, nationally representative older adult population using a traceable standard of measurement and an accurate assessment of beat-to-beat blood pressure (BP). This study used participants aged >50 years from The Irish Longitudinal Study on Ageing. Impaired stabilization of BP on standing was defined as a sustained drop of ≥20 mm Hg systolic BP or ≥10 mm Hg diastolic BP up to 40 seconds post stand (impaired stabilization of BP on standing). We also analyzed participants who sustained a drop of ≥20 mm Hg systolic BP or ≥10 mm Hg diastolic BP throughout the 110 seconds stand (OH110). Vitamin D was categorized into sufficient (≥50 nmol/L), insufficient (30-50 nmol/L), and deficient (<30 nmol/L) status. After exclusion criteria 4209 participants were included. Those with deficiency were more likely to be smokers, take antihypertensive medications and had higher levels of cardiovascular disorders compared with those with sufficient status. In a univariate logistic regression those with deficient (odds ratio, 1.18; 95% CI, 0.86-1.61; P=0.303) or insufficient (odds ratio, 1.13; 95% CI, 0.91; P=0.272) status were no more likely to have evidence of impaired stabilization of BP on standing on active stand compared with sufficiency. Similar findings were found for OH110: deficient (odds ratio, 0.85; 95% CI, 0.52-1.40; P=0.528) or insufficient (odds ratio, 0.86; 95% CI, 0.61-1.21; P=0.384) versus sufficiency. In conclusion, vitamin D is not significantly associated with orthostatic hypotension in older adults.
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Affiliation(s)
- Eamon J Laird
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.)
| | - Triona McNicholas
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.)
| | - Aisling M O'Halloran
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.)
| | - Martin Healy
- Department of Biochemistry, St James's Hospital, Dublin, Ireland (M.H.)
| | - Anne M Molloy
- School of Medicine, Trinity College Dublin, Ireland (A.M.M.)
| | - Daniel Carey
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.)
| | - Deirdre O'Connor
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.)
| | - Kevin McCarroll
- Mercer's Institute for Successful Ageing, St James's Hospital, Dublin, Ireland (K.M., R.A.K.)
| | - Rose Anne Kenny
- From the Department of Medical Gerontology, The Irish Longitudinal Study on Ageing (TILDA), Lincoln Gate, Trinity College, Dublin, Ireland (E.J.L., T.M., A.M.O., D.C., C.O., R.A.K.).,Mercer's Institute for Successful Ageing, St James's Hospital, Dublin, Ireland (K.M., R.A.K.)
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Kim JE, Oh E, Park J, Youn J, Kim JS, Jang W. Serum 25-hydroxyvitamin D3 level may be associated with olfactory dysfunction in de novo Parkinson's disease. J Clin Neurosci 2018; 57:131-135. [PMID: 30135017 DOI: 10.1016/j.jocn.2018.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 07/02/2018] [Accepted: 08/08/2018] [Indexed: 12/13/2022]
Abstract
The purpose of our study was to investigate the association between olfactory function in Parkinson's disease (PD) and serum vitamin D status. Thirty-nine patients with de novo PD were enrolled in this study. Olfactory function was assessed by an odor identification test, as a part of the KVSS (Korean version of sniffin' sticks) II test. All patients were also assessed with the NMSS (Non-Motor Symptoms Scale for PD) to check the subjective change in ability to smell. Vitamin D status was determined by measuring the level of serum 25-hydroxyvitamin D3 (25-OHD3). Multiple linear regression tests and correlation analysis were applied to verify the association between serum 25-OHD3 level and patients' subjective and objective olfactory dysfunction. The serum 25-OHD3 level was independently associated with odor identification score in patients with PD (β = 0.38, p < 0.01). Another statistically significant variable was clinical subtype of PD (Intermediate subtype: β = -0.33, p < 0.05; Akinetic rigid type: β = -0.55, p < 0.01). The serum 25-OHD3 level was also negatively correlated with the score for item number 28 in NMSS (Spearman's rho = -0.32, p < 0.05). Our results showed that vitamin D status might be an independent factor for olfactory dysfunction in PD. Although the underlying mechanism has not been clearly identified, we postulate that vitamin D plays a role in the pathogenesis of olfactory dysfunction in PD. Further investigation to elucidate the precise relationship of vitamin D to PD is essential.
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Affiliation(s)
- Ji Eun Kim
- Department of Neurology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea
| | - Eungseok Oh
- Department of Neurology, Chungnam National University, College of Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Jinse Park
- Department of Neurology, Inje University, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Jinyoung Youn
- Department of Neurology, Samsung Medical Center, College of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Ji Sun Kim
- Department of Neurology, Samsung Medical Center, College of Medicine, Sungkyunkwan University, Seoul, Republic of Korea.
| | - Wooyoung Jang
- Department of Neurology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea.
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Cardiovascular Autonomic Dysfunction: Link Between Multiple Sclerosis Osteoporosis and Neurodegeneration. Neuromolecular Med 2018; 20:37-53. [DOI: 10.1007/s12017-018-8481-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/06/2018] [Indexed: 12/19/2022]
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Cass WA, Peters LE. Reduced ability of calcitriol to promote augmented dopamine release in the lesioned striatum of aged rats. Neurochem Int 2017; 108:222-229. [PMID: 28390950 DOI: 10.1016/j.neuint.2017.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/13/2017] [Accepted: 04/03/2017] [Indexed: 11/18/2022]
Abstract
Parkinson's disease (PD) is a progressive and debilitating neurodegenerative disorder that affects over one million people in the United States. Previous studies, carried out in young adult rats, have shown that calcitriol, the active metabolite of vitamin D, can be neuroprotective in 6-hydroxydopamine (6-OHDA) models of PD. However, as PD usually affects older individuals, the ability of calcitriol to promote dopaminergic recovery was examined in lesioned young adult (4 month old), middle-aged (14 month old) and aged (22 month old) rats. Animals were given a single injection of 12 μg 6-OHDA into the right striatum. Four weeks later they were administered vehicle or calcitriol (1.0 μg/kg, s.c.) once a day for eight consecutive days. In vivo microdialysis experiments were carried out three weeks after the calcitriol or vehicle treatments to measure potassium and amphetamine evoked overflow of DA from both the left and right striata. In control animals treated with 6-OHDA and vehicle there were significant reductions in evoked overflow of DA on the lesioned side of the brain compared to the contralateral side. The calcitriol treatments significantly increased evoked overflow of DA from the lesioned striatum in both the young adult and middle-aged rats. However, the calcitriol treatments did not significantly augment DA overflow in the aged rats. Postmortem tissue levels of striatal DA were also increased in the young and middle-aged animals, but not in the aged animals. In the substantia nigra, the calcitriol treatments led to increased levels of DA in all three age groups. Thus, the effects of calcitriol were similar in the young adult and middle-aged animals, but in the aged animals the effects of calcitriol were diminished. These results suggest that calcitriol may help promote recovery of dopaminergic functioning in injured nigrostriatal neurons; however, the effectiveness of calcitriol may be reduced in aging.
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Affiliation(s)
- Wayne A Cass
- Department of Anatomy and Neurobiology, University of Kentucky College of Medicine, Lexington, KY, USA.
| | - Laura E Peters
- Department of Anatomy and Neurobiology, University of Kentucky College of Medicine, Lexington, KY, USA
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Association of metabolic syndrome with falls in patients with Parkinson's disease. Clin Nutr 2017; 36:559-563. [DOI: 10.1016/j.clnu.2016.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 01/11/2016] [Accepted: 02/01/2016] [Indexed: 11/22/2022]
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Kang SY, Park S, Oh E, Park J, Youn J, Kim JS, Kim JU, Jang W. Vitamin D receptor polymorphisms and Parkinson’s disease in a Korean population: Revisited. Neurosci Lett 2016; 628:230-5. [DOI: 10.1016/j.neulet.2016.06.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/03/2016] [Accepted: 06/20/2016] [Indexed: 12/30/2022]
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Veronese N, Trevisan C, Bolzetta F, De Rui M, Zambon S, Musacchio E, Sartori L, Stubbs B, Perissinotto E, Crepaldi G, Manzato E, Sergi G. Hypovitaminosis D predicts the onset of orthostatic hypotension in older adults. ACTA ACUST UNITED AC 2016; 10:724-32. [PMID: 27492009 DOI: 10.1016/j.jash.2016.06.038] [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: 05/08/2016] [Revised: 06/05/2016] [Accepted: 06/21/2016] [Indexed: 01/21/2023]
Abstract
A number of small cross sectional studies have demonstrated that hypovitaminosis D (represented by low 25 hydroxyvitamin D (25OHD) levels) is associated with orthostatic hypotension (OH). We investigated if hypovitaminosis D is associated with the onset of OH in older adults over a follow-up of 4.4 years. 25OHD was categorized using sex-specific quartiles; OH was defined as a drop of ≤20 mm Hg in systolic or ≤10 mm Hg in diastolic blood pressure <3 minutes of standing. Among 1308 elderly without OH at baseline, using an adjusted logistic regression analysis and taking those with higher baseline serum 25OHD as reference, there was a significant increase in the onset of OH in those with lower serum 25OHD levels. The association was significant only in women when we stratified by sex. In conclusion, hypovitaminosis D predicts the onset of OH in older adults, particularly in women.
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Affiliation(s)
- Nicola Veronese
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy.
| | - Caterina Trevisan
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy
| | - Francesco Bolzetta
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy
| | - Marina De Rui
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy
| | - Sabina Zambon
- National Research Council, Neuroscience Institute, Padova, Italy; Department of Medicine DIMED, Clinica Medica I, University of Padova, Padova, Italy
| | - Estella Musacchio
- Department of Medicine DIMED, Clinica Medica I, University of Padova, Padova, Italy
| | - Leonardo Sartori
- Department of Medicine DIMED, Clinica Medica I, University of Padova, Padova, Italy
| | - Brendon Stubbs
- Physiotherapy Department, South London and Maudsley NHS Foundation Trust, London, United Kingdom; Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Egle Perissinotto
- Department of Cardiac, Thoracic and Vascular Sciences-Biostatistics, Epidemiology and Public Health Unit, University of Padova, Padova, Italy
| | - Gaetano Crepaldi
- National Research Council, Neuroscience Institute, Padova, Italy
| | - Enzo Manzato
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy; National Research Council, Neuroscience Institute, Padova, Italy
| | - Giuseppe Sergi
- Department of Medicine (DIMED), Geriatrics Division, University of Padova, Padova, Italy
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17
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Ometto F, Stubbs B, Annweiler C, Duval GT, Jang W, Kim HT, McCarroll K, Cunningham C, Soysal P, Isik AT, Luchini C, Solmi M, Sergi G, Manzato E, Veronese N. Hypovitaminosis D and orthostatic hypotension: a systematic review and meta-analysis. J Hypertens 2016; 34:1036-43. [PMID: 27027426 DOI: 10.1097/hjh.0000000000000907] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Orthostatic hypotension is a common condition among older adults and is associated with a range of deleterious outcomes. Recently, interest has developed in hypovitaminosis D (defined as low 25 hydroxiyvitamin D levels) as a potential risk factor for orthostatic hypotension. We conducted a systematic review and meta-analysis examining the association of orthostatic hypotension between study participants with and without hypovitaminosis D, including the adjustment of potential confounders (age, sex, BMI, renal function, comorbidities, seasonality, use of antihypertensive medications, and supplementation with cholecalciferol). METHODS A systematic literature search of major electronic databases from inception until 09/2015 was made for articles providing data on orthostatic hypotension and hypovitaminosis D. A random effects meta-analysis of cross-sectional studies investigating orthostatic hypotension prevalence comparing participants with vs. those without hypovitaminosis D was undertaken, calculating the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Of 317 initial hits, five cross-sectional studies were meta-analysed including 3646 participants (1270 with hypovitaminosis D and 2376 without). The participants with hypovitaminosis D had a higher prevalence of orthostatic hypotension (OR = 1.88; 95% CI: 1.25-2.84; I = 68%) that was not affected by adjusting for a median of five potential confounders (OR = 2.03; 95% CI: 1.13-3.68; I = 73%). People with orthostatic hypotension had significantly reduced serum vitamin D concentrations (standardized mean difference = -0.42; 95% CI: -0.72 to -0.12). One longitudinal study confirmed the association between hypovitaminosis D and orthostatic hypotension. CONCLUSION Our meta-analysis highlights that hypovitaminosis D is associated with orthostatic hypotension, independent of potential confounders. Further longitudinal studies and clinical trials are required to confirm these findings.
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Affiliation(s)
- Francesca Ometto
- aRheumatology Unit, Department of Medicine University of Padova, Padova, Italy bPhysiotherapy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill cHealth Service and Population Research Department, Institute of Psychiatry, King's College London, De Crespigny Park, London dDepartment of Neuroscience and Memory Clinic, Division of Geriatric Medicine, Angers University Hospital; UPRES EA 4638, University of Angers, Angers, France eRobarts Research Institute, University of Western Ontario, London, Ontario, Canada fDepartment of Neurology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung gDepartment of Neurology, Hanyang University College of Medicine, Seoul, Republic of Korea hDepartment of Gerontology, St James's Hospital, Dublin, Ireland Mercers Institute for Research on Ageing, Dublin, Ireland iDepartment of Geriatric Medicine, School of Medicine, Dokuz Eylul University, Izmir, Turkey jDepartment of Pathology and Diagnostics, Verona University and Hospital Trust, Verona kDepartment of Pathology, Santa Chiara Hospital, Trento lDepartment of Neurosciences, Local Health Unit 17, Mental Health Department, Monselice mDepartment of Medicine, Geriatrics Section, University of Padova nInstitute of Clinical Research and Education in Medicine (IREM), Padova, Italy *Francesca Ometto and Brendon Stubbs equally contributed to the writing of this article
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18
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Kwon KY, Jo KD, Lee MK, Oh M, Kim EN, Park J, Kim JS, Youn J, Oh E, Kim HT, Oh MY, Jang W. Low Serum Vitamin D Levels May Contribute to Gastric Dysmotility in de novo Parkinson's Disease. NEURODEGENER DIS 2016; 16:199-205. [PMID: 26735311 DOI: 10.1159/000441917] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 10/22/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Gastrointestinal dysfunction is a common non motor symptom in Parkinson's disease (PD). However, the potential association between vitamin D and gastroparesis in PD has not been previously investigated. The aim of this study was to compare vitamin D levels between drug-naive de novo PD patients with normal gastric emptying and those with delayed gastric emptying. METHODS Fifty-one patients with drug-naive de novo PD and 20 age-matched healthy controls were enrolled in this study. Gastric emptying time (GET) was assessed by scintigraphy, and gastric emptying half-time (T1/2) was determined. The PD patients were divided into a delayed-GET group and a normal-GET group. RESULTS The serum 25-hydroxyvitamin D3 levels were decreased in the delayed-GET group compared with the normal-GET and control groups (11.59 ± 4.90 vs. 19.43 ± 6.91 and 32.69 ± 4.93, respectively, p < 0.01). In the multivariate model, the serum 25-hydroxyvitamin D3 level was independently associated with delayed gastric emptying in PD patients. CONCLUSIONS Vitamin D status may be an independent factor for gastric dysmotility in PD. Although the underlying mechanism remains to be characterized, vitamin D status may play a role in the pathogenesis of delayed gastric emptying in drug-naive PD.
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Affiliation(s)
- Ki Young Kwon
- Department of Neurology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea
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