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The Effect of a High-Dose Vitamin B Multivitamin Supplement on the Relationship between Brain Metabolism and Blood Biomarkers of Oxidative Stress: A Randomized Control Trial. Nutrients 2018; 10:nu10121860. [PMID: 30513795 PMCID: PMC6316433 DOI: 10.3390/nu10121860] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 10/31/2018] [Accepted: 11/12/2018] [Indexed: 12/31/2022] Open
Abstract
A diet rich in B-group vitamins is essential for optimal body and brain function, and insufficient amounts of such vitamins have been associated with higher levels of neural inflammation and oxidative stress, as marked by increased blood plasma homocysteine. Neural biomarkers of oxidative stress quantified through proton magnetic spectroscopy (1H-MRS) are not well understood, and the relationship between such neural and blood biomarkers is seldom studied. The current study addresses this gap by investigating the direct effect of 6-month high-dose B-group vitamin supplementation on neural and blood biomarkers of metabolism. Using a randomized, double-blind, placebo-controlled design, 32 healthy adults (20 female, 12 male) aged 30–65 years underwent blood tests (vitamin B6, vitamin B12, folate, and homocysteine levels) and 1H-MRS of the posterior cingulate cortex (PCC) and dorsolateral prefrontal cortex (DLPFC) before and after supplementation. Results confirmed the supplement was effective in increasing vitamin B6 and vitamin B12 levels and reducing homocysteine, whereas there was no change in folate levels. There were significant relationships between vitamin B6 and N-acetylaspartate (NAA), choline, and creatine, as well as between vitamin B12 and creatine (ps < 0.05), whereas NAA in the PCC increased, albeit not significantly (p > 0.05). Together these data provide preliminary evidence for the efficacy of high-dose B-group supplementation in reducing oxidative stress and inflammation through increasing oxidative metabolism. It may also promote myelination, cellular metabolism, and energy storage.
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Solfrizzi V, Agosti P, Lozupone M, Custodero C, Schilardi A, Valiani V, Santamato A, Sardone R, Dibello V, Di Lena L, Stallone R, Ranieri M, Bellomo A, Greco A, Daniele A, Seripa D, Sabbà C, Logroscino G, Panza F. Nutritional interventions and cognitive-related outcomes in patients with late-life cognitive disorders: A systematic review. Neurosci Biobehav Rev 2018; 95:480-498. [PMID: 30395922 DOI: 10.1016/j.neubiorev.2018.10.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 12/30/2022]
Abstract
There have been a large number of observational studies on the impact of nutrition on neuroprotection, however, there was a lack of evidence from randomized clinical trials (RCTs). In the present systematic review, from the 32 included RCTs published in the last four years (2014-2017) in patients aged 60 years and older with different late-life cognitive disorders, nutritional intervention through medical food/nutraceutical supplementation and multidomain approach improved magnetic resonance imaging findings and other cognitive-related biomarkers, but without clear effect on cognition in mild Alzheimer's disease (AD) and mild cognitive impairment (MCI). Antioxidant-rich foods (nuts, grapes, cherries) and fatty acid supplementation, mainly n-3 polyunsaturated fatty acids (PUFA), improved specific cognitive domains and cognitive-related outcomes in MCI, mild-to-moderate dementia, and AD. Antioxidant vitamin and trace element supplementations improved only cognitive-related outcomes and biomarkers, high-dose B vitamin supplementation in AD and MCI patients improved cognitive outcomes in the subjects with a high baseline plasma n-3 PUFA, while folic acid supplementation had positive impact on specific cognitive domains in those with high homocysteine.
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Affiliation(s)
- Vincenzo Solfrizzi
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy.
| | - Pasquale Agosti
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy
| | - Madia Lozupone
- Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Carlo Custodero
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy
| | - Andrea Schilardi
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy
| | - Vincenzo Valiani
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy
| | - Andrea Santamato
- Physical Medicine and Rehabilitation Section, "OORR Hospital", University of Foggia, Foggia, Italy
| | - Rodolfo Sardone
- National Institute of Gastroenterology "Saverio de Bellis", Research Hospital, Castellana Grotte, Bari, Italy; Interdisciplinary Department of Medicine (DIM), Section of Dentistry, University of Bari AldoMoro, Bari, Italy
| | - Vittorio Dibello
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Luca Di Lena
- National Institute of Gastroenterology "Saverio de Bellis", Research Hospital, Castellana Grotte, Bari, Italy; Interdisciplinary Department of Medicine (DIM), Section of Dentistry, University of Bari AldoMoro, Bari, Italy
| | - Roberta Stallone
- National Institute of Gastroenterology "Saverio de Bellis", Research Hospital, Castellana Grotte, Bari, Italy; Interdisciplinary Department of Medicine (DIM), Section of Dentistry, University of Bari AldoMoro, Bari, Italy
| | - Maurizio Ranieri
- Physical Medicine and Rehabilitation Section, "OORR Hospital", University of Foggia, Foggia, Italy
| | - Antonello Bellomo
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Antonio Greco
- Geriatric Unit, Fondazione IRCCS "Casa Sollievo della Sofferenza", San Giovanni Rotondo, Foggia, Italy
| | - Antonio Daniele
- Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Davide Seripa
- Geriatric Unit, Fondazione IRCCS "Casa Sollievo della Sofferenza", San Giovanni Rotondo, Foggia, Italy
| | - Carlo Sabbà
- Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari 'Aldo Moro', Bari, Italy
| | - Giancarlo Logroscino
- Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy; Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
| | - Francesco Panza
- Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy; Geriatric Unit, Fondazione IRCCS "Casa Sollievo della Sofferenza", San Giovanni Rotondo, Foggia, Italy; Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy.
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Chen H, Li H, Li Y, Jing J, Raza HK, Zhang Z, Dong L, Ye X, Hua F, Cui G. Clinical and imaging characteristics of subacute combined degeneration complicated with white matter lesions in the brain: a report of five cases. Somatosens Mot Res 2018; 35:119-123. [PMID: 30107753 DOI: 10.1080/08990220.2018.1484353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
PURPOSE To report five cases of subacute combined degeneration (SCD) with brain involvement and explore its clinical and imaging characteristics. METHODS A retrospective study was performed on the clinical data and brain MRI of five patients with subacute combined degeneration with brain involvement (out of 107 cases with SCD in total). White matter lesions (WML) assessment was performed qualitatively using Fazekas scale score. RESULTS The main symptoms in four patients were weakness in both lower extremities and unstable walking (limb weakness in three patients, dizziness in three patients, and blurred vision in one patient). One patient had memory loss and cognitive dysfunction. The MMSE scale indicated mild dementia in one patient. On head MRI (Magnetic Resonance Imaging), multifocal and symmetrical high signals of T2WI and FLAIR were observed in the frontal lobe and periventricular white matter in four patients, while another patient showed preferential atrophy in frontal regions. Fazekas scale scores ranged from 1-6. CONCLUSION Adult subacute combined degeneration seldom involves the brain. Multifocal and symmetrical high signal white matter lesions can be found on FLAIR and T2WI, as well as frontal atrophy on head MRI.
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Affiliation(s)
- Hao Chen
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Hengyu Li
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Yuncheng Li
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Jia Jing
- b Department of Biology , Georgia State University , Atlanta , GA , USA
| | - Hafiz Khuram Raza
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China.,c School of International Education , Xuzhou Medical University , Xuzhou , PR China
| | - Zuohui Zhang
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Liguo Dong
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Xinchun Ye
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Fang Hua
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
| | - Guiyun Cui
- a Department of Neurology , the Affiliated Hospital of Xuzhou Medical University , Xuzhou , PR China
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Astrup A, Bügel S. Overfed but undernourished: recognizing nutritional inadequacies/deficiencies in patients with overweight or obesity. Int J Obes (Lond) 2018; 43:219-232. [PMID: 29980762 DOI: 10.1038/s41366-018-0143-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 04/17/2018] [Accepted: 05/20/2018] [Indexed: 02/06/2023]
Abstract
Overweight and obesity are highly prevalent throughout the world and can adversely affect the nutritional status of individuals. Studies have shown that many people with obesity have inadequate intake of iron, calcium, magnesium, zinc, copper, folate and vitamins A and B12, likely as a result of poor diet quality. Nutritional inadequacies or deficiencies may also occur due to altered pharmacokinetics in the individual with obesity and due to interactions in those with overweight or obesity with various pharmaceuticals. However, it has been demonstrated that the adult population in the United States as a whole is deficient in certain micronutrients as a result of the availability and overconsumption of high-calorie, low-nutrient processed foods. Poor nutrition may contribute to the development of certain chronic conditions, such as type 2 diabetes, which is already more prevalent in those with obesity. Clinicians need to be aware of these gaps, particularly in those individuals with obesity who are undergoing bariatric surgery or taking pharmaceutical products long term to facilitate weight loss. Patients with overweight or obesity likely struggle to achieve a balanced diet and may benefit from consultation with a dietitian. Along with providing recommendations for healthy eating and exercise, supplementation with specific micronutrients or multivitamins should be considered for individuals at the highest risk for or with established deficiencies. Further research is needed to understand the factors underlying nutritional inadequacies in individuals with overweight or obesity, as well as the outcomes of treatment strategies employed to address them.
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Affiliation(s)
- Arne Astrup
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.
| | - Susanne Bügel
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
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Ramírez-Vélez R, Correa-Bautista JE, Triana-Reina HR, González-Jiménez E, Schmidt-RioValle J, González-Ruíz K. Use of dietary supplements by pregnant women in Colombia. BMC Pregnancy Childbirth 2018; 18:117. [PMID: 29716539 PMCID: PMC5930786 DOI: 10.1186/s12884-018-1758-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 04/22/2018] [Indexed: 12/17/2022] Open
Abstract
Background During pregnancy, the need for certain nutrients increases. This study assessed the prevalence and socio-demographic factors associated with dietary supplement use in a representative sample of pregnant women in Colombia. Method Data for this study were obtained from a cross-sectional, nationally representative survey (ENSIN, 2010). A total of 1856 pregnant women, 13–49 years of age, were recruited. The use of prenatal dietary supplements (Vitamins A, C or E) was treated as a binary outcome (used at some time or never sued during pregnancy when prescribed by a doctor) in multinomial analyses. Sociodemographic data and associated factors were assessed by computer-assisted personal interview technology. Results Of the sample, 1123 women (68.6%) reported taking prenatal dietary supplements at some stage during their pregnancy. Most users had a high socioeconomic level (79.5%), were in their third trimester of pregnancy (79.5%), were 30–49 years of age (74.0%), and lived in the central region of Colombia (73.8%). The multivariate logistic regression showed that third trimester of pregnancy (OR 6.2;95% CI 4.0 to 9.3), high educational level (OR 2.3; 95% CI 1.5 to 3.4), high socioeconomic level -SISBEN IV or more- (OR 2.0; 95% CI 1.4 to 2.8), residence in the Atlantic region (north) (OR 2.6; 95% CI 1.7 to 3.6), Eastern region (OR 2.0; 95% CI 1.3 to 3.1), central region (OR 2.6; 95% CI 1.7 to 3.9), Pacific region (west) (OR 1.5; 95% CI 1.0 to 2.3), and belonging to the mestizo (others) ethnic group (OR 1.2; 95% CI 1.0 to 2.6), were all associated with a higher probability of dietary supplement intake. Conclusion The prevalence of prenatal dietary supplements in pregnant women in Colombia was found to be substantial. The variables significantly associated with their use were educational level, socioeconomic level, trimester of pregnancy, geographic level and ethnic group. These results indicate the necessity of implementing new health policies that guarantee uniform access to nutritional supplements for all population sectors, especially in countries, such as Colombia, who are currently undergoing a process of nutritional transition.
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Affiliation(s)
- Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física «CEMA». Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá D.C, Colombia.
| | - Jorge Enrique Correa-Bautista
- Centro de Estudios para la Medición de la Actividad Física «CEMA». Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá D.C, Colombia
| | | | - Emilio González-Jiménez
- Departamento de Enfermería. Facultad de Ciencias de la Salud, Universidad de Granada, Avda. De la Ilustración, s/n, 18016, Granada, Spain.,Departamento de Enfermería. Facultad de Ciencias de la Salud, Universidad de Granada, Grupo CTS-436, Centro de Investigación Mente Cerebro y Comportamiento (CIMCYC), Granada, Spain
| | - Jacqueline Schmidt-RioValle
- Departamento de Enfermería. Facultad de Ciencias de la Salud, Universidad de Granada, Avda. De la Ilustración, s/n, 18016, Granada, Spain.,Departamento de Enfermería. Facultad de Ciencias de la Salud, Universidad de Granada, Grupo CTS-436, Centro de Investigación Mente Cerebro y Comportamiento (CIMCYC), Granada, Spain
| | - Katherine González-Ruíz
- Vicerrectoría de Investigaciones, Grupo de Ejercicio Físico y Deportes, Facultad de Salud, Universidad Manuela Beltrán, Bogotá, D.C, Colombia
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Hendrawati YD, Andrajati R, Supardi S, Ariyani A. THE RISK OF COBALAMIN DEFICIENCY SYMPTOMS RELATED TO LONG-TERM METFORMIN USE IN T2DM PATIENTS. ACTA ENDOCRINOLOGICA-BUCHAREST 2018; 14:49-54. [PMID: 31149236 DOI: 10.4183/aeb.2018.49] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Background Metformin is the first-line oral antidiabetic agent used in the treatment of diabetes mellitus. One of the adverse reactions of the long term use of metformin is cobalamin malabsorption. Clinical and laboratory findings are important in the diagnosis of cobalamin deficiency. Objective This study aimed to evaluate the risk of cobalamin deficiency symptoms related to long-term use of metformin in type 2 diabetes mellitus patients at Pasar Rebo General Hospital in Jakarta. Setting This quantitative, observational study with retrospective cohort design was conducted in outpatient department Pasar Rebo General Hospital November 2015 until January 2016. Methods 200 subjects were recruited and divided into two groups, patients who had been taking metformin for 1-3 years and patients who had been taking metformin for more than 3 years. Each patient was assessed for the presence of cobalamin deficiency symptoms. Main outcome measure Cobalamin deficiency symptoms evaluated were symptoms of neuropathy (measured by DN4 questionnaire) and hematologic abnormalities associated to cobalamin deficiency, i.e. macrocytic erythrocyte, hypersegmented neutrophils, and giant bands. Results There are significant differences in the proportions of neuropathy symptoms (RR 2.36, 95%, p=0.000) and hematologic abnormalities (RR 1.5, 95%, p=0.007) between the two groups. Conclusions Long-term use of metformin (≥3 years) may increase the risk of cobalamin deficiency symptoms in type 2 diabetes mellitus patients.
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Affiliation(s)
- Y D Hendrawati
- Universitas Indonesia, Faculty of Pharmacy, Depok, Jakarta, Indonesia.,PT Dexa Medica, Titan Center, Tangerang Selatan, Jakarta, Indonesia
| | - R Andrajati
- Universitas Indonesia, Faculty of Pharmacy, Depok, Jakarta, Indonesia
| | | | - A Ariyani
- Pasar Rebo General Hospital, Clinical Pathology, Jakarta, Indonesia
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Gupta K, Jain A, Rohatgi A. An observational study of vitamin b12 levels and peripheral neuropathy profile in patients of diabetes mellitus on metformin therapy. Diabetes Metab Syndr 2018; 12:51-58. [PMID: 28882470 DOI: 10.1016/j.dsx.2017.08.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 08/20/2017] [Indexed: 02/08/2023]
Abstract
METHODS A descriptive, observational study was completed in a tertiary care hospital between November 2014 and March 2016. Fifty consecutive patients of Type 2-Diabetes Mellitus who had been on metformin therapy for at least three months were included in our study. Several Parameters were compared with vitamin B12 levels and severity of peripheral neuropathy (using Toronto Clinical Scoring System (TCSS) and Nerve Conduction Velocity). These included the duration of diabetes, duration of metformin usage, dietary history, and HbA1c levels. Definite B12 deficiency was defined as B12<150pg/ml and possible B12 deficiency as <220pg/ml. RESULTS In our study, we found a negative correlation between duration of metformin use and Vitamin B12 levels(r=-0.40). The mean Vitamin B12 levels seen in our study was 212.3pg/mL. There is a positive correlation between the duration of metformin therapy and peripheral neuropathy (r=0.40). The mean TCSS score was 6.8. The percentage of patients with mild neuropathy was 28%, with moderate neuropathy was 20% and severe neuropathy in 12% of the patients. The average duration of metformin use in patients without peripheral neuropathy was 5.5yrs whereas the average length of metformin use in patients with peripheral neuropathy was 10.4 yrs. CONCLUSION Patients on long-term metformin therapy are at a high risk for Vitamin B12 deficiency and peripheral neuropathy. Interval Screening for peripheral neuropathy is recommended for patients on metformin even if Vitamin B12 levels appear to be normal.
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Affiliation(s)
- Kamesh Gupta
- Department of Medicine, Lady Hardinge Medical College, Shaheed Bhagat Singh Road, Diz Area, Connaught Place, New Delhi, 110001, India.
| | - Anand Jain
- Department of Medicine, Lady Hardinge Medical College, Shaheed Bhagat Singh Road, Diz Area, Connaught Place, New Delhi, 110001, India.
| | - Anurag Rohatgi
- Department of Medicine, Lady Hardinge Medical College, Shaheed Bhagat Singh Road, Diz Area, Connaught Place, New Delhi, 110001, India.
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Mihelčić M, Šimić G, Babić Leko M, Lavrač N, Džeroski S, Šmuc T. Using redescription mining to relate clinical and biological characteristics of cognitively impaired and Alzheimer's disease patients. PLoS One 2017; 12:e0187364. [PMID: 29088293 PMCID: PMC5663625 DOI: 10.1371/journal.pone.0187364] [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: 09/09/2016] [Accepted: 10/18/2017] [Indexed: 11/18/2022] Open
Abstract
Based on a set of subjects and a collection of attributes obtained from the Alzheimer's Disease Neuroimaging Initiative database, we used redescription mining to find interpretable rules revealing associations between those determinants that provide insights about the Alzheimer's disease (AD). We extended the CLUS-RM redescription mining algorithm to a constraint-based redescription mining (CBRM) setting, which enables several modes of targeted exploration of specific, user-constrained associations. Redescription mining enabled finding specific constructs of clinical and biological attributes that describe many groups of subjects of different size, homogeneity and levels of cognitive impairment. We confirmed some previously known findings. However, in some instances, as with the attributes: testosterone, ciliary neurotrophic factor, brain natriuretic peptide, Fas ligand, the imaging attribute Spatial Pattern of Abnormalities for Recognition of Early AD, as well as the levels of leptin and angiopoietin-2 in plasma, we corroborated previously debatable findings or provided additional information about these variables and their association with AD pathogenesis. Moreover, applying redescription mining on ADNI data resulted with the discovery of one largely unknown attribute: the Pregnancy-Associated Protein-A (PAPP-A), which we found highly associated with cognitive impairment in AD. Statistically significant correlations (p ≤ 0.01) were found between PAPP-A and clinical tests: Alzheimer's Disease Assessment Scale, Clinical Dementia Rating Sum of Boxes, Mini Mental State Examination, etc. The high importance of this finding lies in the fact that PAPP-A is a metalloproteinase, known to cleave insulin-like growth factor binding proteins. Since it also shares similar substrates with A Disintegrin and the Metalloproteinase family of enzymes that act as α-secretase to physiologically cleave amyloid precursor protein (APP) in the non-amyloidogenic pathway, it could be directly involved in the metabolism of APP very early during the disease course. Therefore, further studies should investigate the role of PAPP-A in the development of AD more thoroughly.
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Affiliation(s)
- Matej Mihelčić
- Division of Electronics, Ruđer Bošković Institute, Zagreb, Croatia
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Goran Šimić
- Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | - Mirjana Babić Leko
- Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | - Nada Lavrač
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
- Department of Knowledge Technologies, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Sašo Džeroski
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
- Department of Knowledge Technologies, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Tomislav Šmuc
- Division of Electronics, Ruđer Bošković Institute, Zagreb, Croatia
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Husmann DA. Lessons learned from the management of adults who have undergone augmentation for spina bifida and bladder exstrophy: Incidence and management of the non-lethal complications of bladder augmentation. Int J Urol 2017; 25:94-101. [DOI: 10.1111/iju.13417] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 06/11/2017] [Indexed: 12/19/2022]
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Lukaszuk JM, Walker DA, Shokrani M, Umoren J, Norman EJ. Assessment of vitamin B 12 tissue stores in elderly proton pump inhibitor users. COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1389639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Judith M. Lukaszuk
- College of Health & Human Sciences, Northern Illinois University, DeKalb, IL 60115, USA
| | - David A. Walker
- College of Education, Northern Illinois University, DeKalb, IL 60115, USA
| | - Masih Shokrani
- College of Health & Human Sciences, Northern Illinois University, DeKalb, IL 60115, USA
| | - Josephine Umoren
- College of Health & Human Sciences, Northern Illinois University, DeKalb, IL 60115, USA
| | - Eric J. Norman
- Norman Clinical Laboratory, Inc., Cincinnati, OH 45231, USA
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Kadihasanoglu M, Kilciler M, Kilciler G, Yucetas U, Erkan E, Karabay E, Toktas MG, Kendirci M. Relation between blood vitamin B12 levels with premature ejaculation: case-control study. Andrologia 2016; 49. [PMID: 27681841 DOI: 10.1111/and.12657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2016] [Indexed: 11/28/2022] Open
Abstract
The aim of this study was to investigate whether vitamin B12 levels are associated with premature ejaculation (PE). A total of 109 subjects (56 PE and 53 controls) were included in this study. PE was defined as self-reported intravaginal ejaculatory latency time (IELT) based on the Diagnostic and Statistical Manual of Mental Disorders IV criteria and those who had had an IELT of <2 min was considered as PE. All participants were evaluated using premature ejaculation diagnostic tool (PEDT), International Index of Erectile Function (IIEF) and Beck Depression Inventory (BDI). The vitamin 12 levels were measured in all subjects. The mean age between the PE and controls was comparable (p = .084). Mean IIEF and BDI scores between the two groups did not statistically differ. The mean IELT values in the PE group were significantly lower than in the control group (p < .0001). PE patients reported significantly lower vitamin B12 levels compared with the controls (213.14 vs. 265.89 ng ml-1 ; p < .001). The ROC analysis showed a significant correlation between the diagnosis of PE and lower vitamin B12 levels. This study has demonstrated that lower vitamin B12 levels are associated with the presence of PE. This work also shows a strong correlation between vitamin B12 levels and the PEDT scores as well as the IELT values.
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Affiliation(s)
- M Kadihasanoglu
- Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - M Kilciler
- Department of Urology, Bahcesehir University, Faculty of Medicine, Medical Park Bursa Hospital, Bursa, Turkey
| | - G Kilciler
- Gulhane Askeri Tıp Akademisi, Gastroenteroloji Bilim Dalı, Ankara, Turkey
| | - U Yucetas
- Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - E Erkan
- Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - E Karabay
- Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - M G Toktas
- Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - M Kendirci
- Department of Urology, Istinye University, Faculty of Medicine, Liv Hospital Ulus, Istanbul, Turkey
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Rathod RS, Khaire AA, Kale AA, Joshi SR. Effect of vitamin B12 and omega-3 fatty acid supplementation on brain neurotrophins and cognition in rats: A multigeneration study. Biochimie 2016; 128-129:201-8. [PMID: 27569259 DOI: 10.1016/j.biochi.2016.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/21/2016] [Indexed: 12/24/2022]
Abstract
Vitamin B12 and omega-3 fatty acids are important nutrients required for neuronal functioning. We have demonstrated the beneficial effects of vitamin B12 and omega-3 fatty acid supplementation on brain neurotrophins and cognition in the first and second generation offspring. However, there is a need to examine if the effects are sustained in the third generation offspring. This study reports the effects of vitamin B12 and omega-3 fatty acid supplementation across three consecutive generations on brain neurotrophins like brain derived neurotrophic factor (BDNF); nerve growth factor (NGF) and cognitive performance in the third generation male offspring. Three successive generations of Wistar rats were assigned the following groups throughout pregnancy, lactation and adulthood: i) Control, ii) vitamin B12 deficient (BD), iii) vitamin B12 deficient + omega-3 fatty acid (BDO), iv) vitamin B12 supplemented (BS) and v) vitamin B12 supplemented + omega-3 fatty acid (BSO). The BD group demonstrated lower (p < 0.01) NGF in the cortex but not BDNF levels although the cognition was impaired (p < 0.01). In contrast, in the BDO group, higher NGF levels were observed in the hippocampus and animals demonstrated improved (p < 0.01) cognitive performance. Vitamin B12 supplementation showed comparable BDNF levels in the hippocampus while their levels were lower in the cortex as compared to the control (p < 0.05). These animals showed more reference and working memory errors (p < 0.01) as compared to the control group. A combined supplementation of vitamin B12 and omega-3 fatty acid showed higher (p < 0.01) levels of DHA and NGF in the hippocampus, higher BDNF in both hippocampus and cortex and improved cognitive performance. Our findings have implications for fortification of foods with vitamin B12 and omega-3 fatty acids in improving brain development.
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Affiliation(s)
- Richa S Rathod
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune 411043, India
| | - Amrita A Khaire
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune 411043, India
| | - Anvita A Kale
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune 411043, India
| | - Sadhana R Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune 411043, India.
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Chen L, Li B, Chen B, Shao Y, Luo Q, Shi X, Chen Y. Thymoquinone Alleviates the Experimental Diabetic Peripheral Neuropathy by Modulation of Inflammation. Sci Rep 2016; 6:31656. [PMID: 27545310 PMCID: PMC4992870 DOI: 10.1038/srep31656] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 07/22/2016] [Indexed: 12/22/2022] Open
Abstract
Thymoquinone has been reported to exhibit antioxidant and anti-inflammatory effects. Inflammation plays an important role in pathogenesis of diabetic peripheral neuropathy. This study investigated the effects of TQ on proliferation and apoptosis of Schwann cells exposed to high glucose conditions and electrophysiological and morphological changes of the sciatic nerve in a DPN rat model as well as relevant inflammatory mechanism. Cell proliferation and apoptosis of Schwann cells were measured using the Cell Counting Kit-8 and flow cytometry. DPN model was established in streptozotocin-induced diabetic rats. Nerve conduction velocity was measured before and after treatment. Morphologic changes were observed by H&E staining and transmission electron microscopy. COX-2, IL-1β, IL-6, and Caspase-3 expression was investigated by western blotting and Bio-Plex ProTM Assays. Finally, TQ alleviated the inhibition of Schwann cell proliferation and protected against Schwann cell apoptosis. It improved nerve conduction velocity, and alleviated the DPN-induced morphological changes and demyelination of the sciatic nerve. COX-2, IL-1β, IL-6 and Caspase-3 expression in sciatic nerve or isolated cultured Schwann cells, were also decreased by TQ. These results indicate TQ has a protective effect on peripheral nerves in a DPN rat model. The mechanism may be mediated partly by the modulation of the inflammatory reaction.
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Affiliation(s)
- Long Chen
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai 201508, P. R. China.,Department of Neurology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Bing Li
- Center Laboratory, Jinshan Hospital, Fudan University, Shanghai 201508, P. R.China
| | - Biqin Chen
- Department of Pediatric, Jinshan Hospital, Fudan University, Shanghai 201508, P. R.China
| | - Yiye Shao
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai 201508, P. R. China.,Department of Neurology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Qiong Luo
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai 201508, P. R. China.,Department of Neurology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Xiaohong Shi
- Department of Endocrinology, Jinshan Hospital, Fudan University, Shanghai 201508, P. R.China
| | - Yinghui Chen
- Department of Neurology, Jinshan Hospital, Fudan University, Shanghai 201508, P. R. China.,Department of Neurology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
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64
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Hsu WC, Chu YC, Fung HC, Wai YY, Wang JJ, Lee JD, Chen YC. Digit symbol substitution test score and hyperhomocysteinemia in older adults. Medicine (Baltimore) 2016; 95:e4535. [PMID: 27583864 PMCID: PMC5008548 DOI: 10.1097/md.0000000000004535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Mounting evidence shows that hyperhomocysteinemia is a risk factor for cognitive decline. This study enrolled subjects with normal serum levels of B12 and folate and performed thorough neuropsychological assessments to illuminate the independent role of homocysteine on cognitive functions.Participants between ages 50 and 85 were enrolled with Modified Hachinski ischemic score of <4, adequate visual and auditory acuity to allow neuropsychological testing, and good general health. Subjects with cognitive impairment resulting from secondary causes were excluded. Each of the participants completed evaluations of general intellectual function, including the Mini-Mental State Examination, Cognitive Abilities Screening Instrument, Clinical Dementia Rating, and a battery of neuropsychological assessments.This study enrolled 225 subjects (90 subjects younger than 65 years and 135 subjects aged 65 years or older). The sex proportion was similar between the 2 age groups. Years of education were significantly fewer in the elderly (7.49 ± 5.40 years) than in the young (9.76 ± 4.39 years, P = 0.001). There was no significant difference in body mass index or levels of vitamin B12 and folate between the 2 age groups. Homocysteine levels were significantly higher in the elderly group compared to the younger group (10.8 ± 2.7 vs. 9.5 ± 2.5 μmol/L, respectively, P = 0.0006). After adjusting for age, sex, and education, only the Digit Symbol Substitution (DSS) score was significantly lower in subjects with hyperhomocysteinemia (homocysteine >12 μmol/L) than those with homocysteine ≤12 μmol/L in the elderly group (DSS score: 7.1 ± 2.7 and 9.0 ± 3.0, respectively, beta = -1.6, 95% confidence interval [CI] = -2.8∼-0.5, P = 0.001) and borderline significance was noted in the combined age group (beta = -1.1, 95% CI = -2.1∼-0.1, P = 0.04). We did not find an association between hyperhomocysteinemia and other neuropsychological assessments.This is the first study to demonstrate a significant association between hyperhomocysteinemia (>12 μmol/L) and low DSS score, suggesting that DSS score may be an independent marker of cognitive impairment in response to hyperhomocysteinemia, especially in the elderly. Further replication studies with larger cohorts are needed to confirm our results.
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Affiliation(s)
- Wen-Chuin Hsu
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University
- Dementia Center
| | - Yi-Chuan Chu
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University
- Dementia Center
| | - Hon-Chung Fung
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University
- Dementia Center
| | - Yau-Yau Wai
- Department of Radiology and Intervention, Chang Gung Memorial Hospital Linkou Medical Center
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan
| | - Jiun-Jie Wang
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan
- Medical Imaging Research Center, Institute for Radiological Research, Chang Gung University, Chang Gung Memorial Hospital, Linkou
- Department of Diagnostic Radiology Chang Gung Memorial Hospital Keelung
- Healthy Ageing Research Center, Chang Gung University, Taoyuan
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou
| | - Jiann-Der Lee
- Department of Electrical Engineering, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Chun Chen
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University
- Dementia Center
- Correspondence: Yi-Chun Chen, Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 333, Taiwan (e-mail: )
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Bhatti AB, Usman M, Ali F, Satti SA. Vitamin Supplementation as an Adjuvant Treatment for Alzheimer's Disease. J Clin Diagn Res 2016; 10:OE07-11. [PMID: 27656493 DOI: 10.7860/jcdr/2016/20273.8261] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 05/19/2016] [Indexed: 01/15/2023]
Abstract
Alzheimer's Disease (AD) is a slowly progressing neurodegenerative disorder representing a major health concern worldwide. This disorder is characterised by progressive dementia and cognitive decline. The pathological hallmarks of AD include the presence of Aβ plaques and tau neurofibrils. Research has shown that oxidative stress represents a major risk factor associated with AD pathology. Accumulation of Aβ plaques and relative lack of antioxidant defence mechanisms, including cellular antioxidant enzymes and dietary antioxidants like vitamins, assist in the exacerbation of oxidative stress. Reactive Oxygen Species (ROS) produced as the result of oxidative stress, that increase structural and functional abnormalities in brain neurons, which then manifests as dementia and decline in cognition. Data from numerous epidemiological studies suggests that nutrition is one of the most important yet modifiable risk factors for AD. Since oxidative stress contributes a great deal in the development and progression of AD, anything that could attenuate oxidative stress would help in decreasing the prevalence and incidence of AD. There is increasing evidence that supports the use of different antioxidant as an adjuvant treatment for AD. Vitamins are one such antioxidant that can be used as an adjuvant in AD treatment. This paper will focus on the evidence, based on current literature, linking the use of vitamin supplementations as an adjuvant treatment for AD.
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Affiliation(s)
- Adnan Bashir Bhatti
- Research Fellow, Department of Medicine, Capital Development Authority (CDA) Hospital , Islamabad, Pakistan
| | - Muhammad Usman
- Research Fellow, Department of Medicine, Jinnah Hospital Lahore (JHL)/Allama Iqbal Medical College (AIMC) , Lahore, Pakistan
| | - Farhan Ali
- Associate Professor, Department of Medicine, Capital Development Authority (CDA) Hospital , Islamabad, Pakistan
| | - Siddique Akbar Satti
- Professor Head, Department of Medicine, Capital Development Authority (CDA) Hospital , Islamabad, Pakistan
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66
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Hannibal L, Lysne V, Bjørke-Monsen AL, Behringer S, Grünert SC, Spiekerkoetter U, Jacobsen DW, Blom HJ. Biomarkers and Algorithms for the Diagnosis of Vitamin B12 Deficiency. Front Mol Biosci 2016; 3:27. [PMID: 27446930 PMCID: PMC4921487 DOI: 10.3389/fmolb.2016.00027] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 06/07/2016] [Indexed: 12/12/2022] Open
Abstract
Vitamin B12 (cobalamin, Cbl, B12) is an indispensable water-soluble micronutrient that serves as a coenzyme for cytosolic methionine synthase (MS) and mitochondrial methylmalonyl-CoA mutase (MCM). Deficiency of Cbl, whether nutritional or due to inborn errors of Cbl metabolism, inactivate MS and MCM leading to the accumulation of homocysteine (Hcy) and methylmalonic acid (MMA), respectively. In conjunction with total B12 and its bioactive protein-bound form, holo-transcobalamin (holo-TC), Hcy, and MMA are the preferred serum biomarkers utilized to determine B12 status. Clinically, vitamin B12 deficiency leads to neurological deterioration and megaloblastic anemia, and, if left untreated, to death. Subclinical vitamin B12 deficiency (usually defined as a total serum B12 of <200 pmol/L) presents asymptomatically or with rather subtle generic symptoms that oftentimes are mistakenly ascribed to unrelated disorders. Numerous studies have now established that serum vitamin B12 has limited diagnostic value as a stand-alone marker. Low serum levels of vitamin B12 not always represent deficiency, and likewise, severe functional deficiency of the micronutrient has been documented in the presence of normal and even high levels of serum vitamin B12. This review discusses the usefulness and limitations of current biomarkers of B12 status in newborn screening, infant and adult diagnostics, the algorithms utilized to diagnose B12 deficiency and unusual findings of vitamin B12 status in various human disorders.
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Affiliation(s)
- Luciana Hannibal
- Laboratory of Clinical Biochemistry and Metabolism, Department for Pediatrics, Medical Center, University of Freiburg Freiburg, Germany
| | - Vegard Lysne
- Department of Clinical Sciences, University of Bergen Bergen, Norway
| | | | - Sidney Behringer
- Laboratory of Clinical Biochemistry and Metabolism, Department for Pediatrics, Medical Center, University of Freiburg Freiburg, Germany
| | - Sarah C Grünert
- Laboratory of Clinical Biochemistry and Metabolism, Department for Pediatrics, Medical Center, University of Freiburg Freiburg, Germany
| | - Ute Spiekerkoetter
- Laboratory of Clinical Biochemistry and Metabolism, Department for Pediatrics, Medical Center, University of Freiburg Freiburg, Germany
| | - Donald W Jacobsen
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic Cleveland, OH, USA
| | - Henk J Blom
- Laboratory of Clinical Biochemistry and Metabolism, Department for Pediatrics, Medical Center, University of Freiburg Freiburg, Germany
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Fernández-Rodríguez C, González-Reimers E, Quintero-Platt G, de la Vega-Prieto MJ, Pérez-Hernández O, Martín-González C, Espelosín-Ortega E, Romero-Acevedo L, Santolaria-Fernández F. Homocysteine, Liver Function Derangement and Brain Atrophy in Alcoholics. Alcohol Alcohol 2016; 51:691-697. [PMID: 27261471 DOI: 10.1093/alcalc/agw031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 05/03/2016] [Indexed: 12/26/2022] Open
Abstract
AIMS Hyperhomocysteinemia may be involved in the development of brain atrophy in alcoholics. Its pathogenesis is multifactorial. In the present study, we analyse the relationship between homocysteine levels and brain atrophy, and the relative weight of co-existing factors such as liver function impairment, the amount of ethanol consumed, serum vitamin B12, B6, and folic acid levels on homocysteine levels and brain alterations in alcoholic patients. METHODS We included 59 patients admitted to this hospital for major withdrawal symptoms and 24 controls. The mini-mental state examination test and a brain computed tomography (CT) scan were performed and several indices were calculated. Serum levels of homocysteine, folic acid, vitamin B6 and vitamin B12 were determined. Liver function was assessed by Child-Pugh score. The daily consumption of ethanol in grams per day and years of addiction were recorded. RESULTS A total of 83.6% and 80% of the patients showed cerebellar or frontal atrophy, respectively. Patients showed altered values of brain indices, higher levels of homocysteine and vitamin B12, but lower levels of folic acid, compared with controls. Homocysteine, B12 and liver function variables showed significant correlations with brain CT indices. Multivariate analyses disclosed that Pugh's score, albumin and bilirubin were independently related to cerebellar atrophy, frontal atrophy, cella index or ventricular index. Serum vitamin B12 was the only factor independently related to Evans index. It was also related to cella index, but after bilirubin. Homocysteine levels were independently related to ventricular index, but after bilirubin. CONCLUSION Vitamin B12 and homocysteine levels are higher among alcoholics. Liver function derangement, vitamin B12 and homocysteine are all independently related to brain atrophy, although not to cognitive alterations. SHORT SUMMARY Hyperhomocysteinemia has been described in alcoholics and may be related to brain atrophy, a reversible condition with an obscure pathogenesis. We studied 59 patients and found that liver function derangement, vitamin B12 and homocysteine levels are all independently related to brain atrophy assessed by computed tomography, although we found no association between these parameters and cognitive alterations.
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Affiliation(s)
- Camino Fernández-Rodríguez
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Emilio González-Reimers
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Geraldine Quintero-Platt
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - María José de la Vega-Prieto
- Laboratorio Central, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Onán Pérez-Hernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Candelaria Martín-González
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Elisa Espelosín-Ortega
- Laboratorio Central, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Lucía Romero-Acevedo
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
| | - Francisco Santolaria-Fernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife 38320, Canary Islands, Spain
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Vitamin B12 concentrations in pregnant Colombian women: analysis of nationwide data 2010. BMC Pregnancy Childbirth 2016; 16:26. [PMID: 26832149 PMCID: PMC4736095 DOI: 10.1186/s12884-016-0820-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 03/18/2015] [Indexed: 12/19/2022] Open
Abstract
Background Vitamin B12 deficiency is associated with many adverse health outcomes and is highly prevalent worldwide. The present study assesses the prevalence and socio-demographic factors associated with vitamin B12 deficiency in a representative sample of pregnant women in Colombia. Method We used data from the cross-sectional, nationally representative survey (ENSIN, 2010). A total of 1.781, (13–49 years old) pregnant women were enrolled. Serum Vitamin B12 a concentration was determined by chemiluminescence and sociodemographic date was assessed by computer-assisted personal interview technology. Multivariate analyses using unordered multinomial logistic regression models were conducted in the main analysis. Results Vitamin B12 concentrations ranged from 45 to 1000 pg/mL (mean 299.2 pg/mL, 95 % CI 290.6 to 303.7 pg/mL). A total of 18.6 % of pregnant women had vitamin B12 concentrations below 200 pg/mL and 41.3 % had concentrations between 200 and 300 pg/mL. Being of indigenous ethnicity, living in the east and living in a rural area showed the lowest mean values (273.2 pg/mL, 270.8 pg/mL and 290.1 pg/mL, respectively). The multivariate logistic regression shows that pregnant women belonging to the indigenous ethnic group OR 2.2, (95 % CI 1.1 to 4.3), living in the pacific region (west) OR 4.4, (95 % CI 2.8 to 6.9), or national territories (south) OR 2.3, (95 % CI 1.4 to 3.7) were associated with a higher probability of serum vitamin B12 deficiency. Conclusion The prevalence of vitamin B12 deficiency in Colombian pregnant women is substantial. Factors associated with depletion among pregnant women should be considered for future interventions in countries experiencing nutritional transition.
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Rathod R, Kale A, Joshi S. Novel insights into the effect of vitamin B₁₂ and omega-3 fatty acids on brain function. J Biomed Sci 2016; 23:17. [PMID: 26809263 PMCID: PMC4727338 DOI: 10.1186/s12929-016-0241-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 01/20/2016] [Indexed: 01/16/2023] Open
Abstract
The prevalence of psychiatric disorders which are characterized by cognitive decline is increasing at an alarming rate and account for a significant proportion of the global disease burden. Evidences from human and animal studies indicate that neurocognitive development is influenced by various environmental factors including nutrition. It has been established that nutrition affects the brain throughout life. However, the mechanisms through which nutrition modulates mental health are still not well understood. It has been suggested that the deficiencies of both vitamin B12 and omega-3 fatty acids can have adverse effects on cognition and synaptic plasticity. Studies indicate a need for supplementation of vitamin B12 and omega-3 fatty acids to reduce the risk of cognitive decline, although the results of intervention trials using these nutrients in isolation are inconclusive. In the present article, we provide an overview of vitamin B12 and omega-3 fatty acids, the possible mechanisms and the evidences through which vitamin B12 and omega-3 fatty acids modulate mental health and cognition. Understanding the role of vitamin B12 and omega-3 fatty acids on brain functioning may provide important clues to prevent early cognitive deficits and later neurobehavioral disorders.
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Affiliation(s)
- Richa Rathod
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune, 411043, India
| | - Anvita Kale
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune, 411043, India
| | - Sadhana Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune Satara Road, Pune, 411043, India.
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70
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Pfisterer KJ, Sharratt MT, Heckman GG, Keller HH. Vitamin B12 status in older adults living in Ontario long-term care homes: prevalence and incidence of deficiency with supplementation as a protective factor. Appl Physiol Nutr Metab 2016; 41:219-22. [PMID: 26781161 DOI: 10.1139/apnm-2015-0565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Vitamin B12 (B12) deficiency, although treatable, impacts up to 43% of community-living older adults; long-term care (LTC) residents may be at greater risk. Recommendations for screening require further evidence on prevalence and incidence in LTC. Small, ungeneralizable samples provide a limited perspective on these issues. The purposes of this study were to report prevalence of B12 deficiency at admission to LTC, incidence 1 year post-admission, and identify subgroups with differential risk. This multi-site (8), retrospective prevalence study used random proportionate sampling of resident charts (n = 412). Data at admission extracted included demographics, B12 status, B12 supplementation, medications, diagnoses, functional independence, cognitive performance, and nutrition. Prevalence at admission of B12 deficiency (<156 pmol/L) was 13.8%; 47.6% had normal B12 (>300 pmol/L). One year post-admission incidence was 4%. Better B12 status was significantly associated with supplementation use prior to LTC admission. Other characteristics were not associated with status. This work provides a better estimate of B12 deficiency prevalence than previously available for LTC, upon which to base protocols and policy. Prospective studies are needed to establish treatment efficacy and effect on health related outcomes.
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Affiliation(s)
- Kaylen J Pfisterer
- a University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.,b Schlegel-University of Waterloo Research Institute for Aging, 250 Laurelwood Drive, Waterloo, ON N2J 0E2, Canada
| | - Mike T Sharratt
- a University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.,b Schlegel-University of Waterloo Research Institute for Aging, 250 Laurelwood Drive, Waterloo, ON N2J 0E2, Canada
| | - George G Heckman
- a University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.,b Schlegel-University of Waterloo Research Institute for Aging, 250 Laurelwood Drive, Waterloo, ON N2J 0E2, Canada
| | - Heather H Keller
- a University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.,b Schlegel-University of Waterloo Research Institute for Aging, 250 Laurelwood Drive, Waterloo, ON N2J 0E2, Canada
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Yoganathan S, Thomas MM, Mathai S, Ghosh U. Neuroregression as an initial manifestation in a toddler with acquired pernicious anaemia. BMJ Case Rep 2015; 2015:bcr-2015-213540. [PMID: 26678841 DOI: 10.1136/bcr-2015-213540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The aetiology spectrum for neuroregression in infants and toddlers is diverse. Vitamin B12 deficiency-mediated neuroregression is less commonly considered as a differential. Prevalence of pernicious anaemia in the general population is 0.1% and is extremely rare in children. We describe a 35-month-old toddler with neuroregression, seizures, coarse tremors, bleating cry and neuropathy. His clinical symptomatology mimicked grey matter degenerative illness and infantile tremor syndrome, a nutritional deficiency-mediated movement disorder. His vitamin B12 level was low and serum homocysteine level was elevated. Haematological manifestations were not overt and anti-intrinsic factor antibody was positive. With parenteral vitamin B12 therapy, there was a dramatic response with clinical and laboratory translation. This report emphasises the need for a high index of suspicion and screening for markers of vitamin B12 deficiency in all children with unexplained acute or subacute neuroregression, seizures and movement disorders as it is potentially reversible.
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Affiliation(s)
- Sangeetha Yoganathan
- Department of Neurological Sciences, Christian Medical College, Vellore, Tamilnadu, India
| | - Maya Mary Thomas
- Department of Neurological Sciences, Christian Medical College, Vellore, Tamilnadu, India
| | - Sarah Mathai
- Department of Pediatrics, Christian Medical College, Vellore, Tamilnadu, India
| | - Urmi Ghosh
- Department of Pediatrics, Christian Medical College, Vellore, Tamilnadu, India
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Ramírez-Vélez R, Correa-Bautista JE, Martínez-Torres J, Meneses-Echávez JF, Lobelo F. Vitamin B12 concentration and its association with sociodemographic factors in Colombian children: Findings from the 2010 National Nutrition Survey. Nutrition 2015; 32:255-9. [PMID: 26576959 DOI: 10.1016/j.nut.2015.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 07/28/2015] [Accepted: 08/22/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Rapid changes in dietary patterns, economic development, and urbanization in low- to middle-income countries are fueling complex malnutrition states that need better characterization using population-level data. The aim of this study was to describe the key findings related to vitamin B12 status to identify the prevalence and associated sociodemographic factors in a representative sample of children in Colombia, based on the 2010 National Nutrition Survey. METHODS We analyzed cross-sectional data from 6910 Colombian children between the ages of 5 and 12. Serum vitamin B12 concentrations were determined by chemiluminescence. Sociodemographic data was assessed by computer-assisted personal interview technology. RESULTS Of the children assessed, 2.8% had vitamin B12 deficiency, defined as levels <200 pg/mL, and 18.1% had marginal vitamin B12 deficiency, defined as levels between 200 and 300 pg/mL. A multivariate logistic regression analysis revealed increased risks for vitamin B12 deficiency among children ages ≥9 y and for those living in the eastern, western, and southern regions of the country. No significant associations were found for ethnic groups, socioeconomic status, or urbanity levels. Being 11 y of age (odds ratio [OR], 2.16; 95% confidence interval [CI], 1.56-3.00; P = 0.0001), living in the west (Pacific) region of the country (OR, 3.92; 95% CI, 3.14-4.90; P = 0.0001), and being male (OR, 1.41; 95% CI, 1.20-1.65; P = 0.0001) were the factors most strongly associated with an increased risk for vitamin B12 deficiency. CONCLUSIONS Compared with data from other Latin American countries, Colombian children have a lower prevalence of vitamin B12 deficiency; however the prevalence of marginal deficiency is substantial. Continued surveillance and implementation of interventions to improve dietary patterns among the high-risk groups identified should be considered.
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Affiliation(s)
- Robinson Ramírez-Vélez
- Programa de Fisioterapia, Facultad de Salud, Universidad Manuela Beltrán, Bogotá, DC, Colombia.
| | - Jorge Enrique Correa-Bautista
- Centro de Estudios para la Medición de la Actividad Física CEMA, Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, DC, Colombia
| | - Javier Martínez-Torres
- Grupo GICAEDS. Programa de Cultura Física, Deporte y Recreación, Universidad Santo Tomás, Bogotá, DC, Colombia
| | | | - Felipe Lobelo
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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Guest J, Bilgin A, Hokin B, Mori TA, Croft KD, Grant R. Novel relationships between B12, folate and markers of inflammation, oxidative stress and NAD(H) levels, systemically and in the CNS of a healthy human cohort. Nutr Neurosci 2015; 18:355-64. [PMID: 26263423 DOI: 10.1179/1476830515y.0000000041] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To evaluate the relationship between folate, cobalamin (Cbl), and homocysteine (Hcy), and markers of inflammation and oxidative stress within the periphery and central nervous system (CNS) of a healthy human cohort. METHODS Thirty-five matched cerebrospinal fluid (CSF) and plasma samples were collected from consenting participants who required a spinal tap for the administration of anaesthetic. Plasma concentrations of Hcy and both plasma and CSF levels of folate, Cbl, nicotinamide adenine dinucleotide (NAD(H)) and markers of inflammation (interleukin-6, IL-6), and oxidative stress (F2-isoprostanes, 8-hydroxy-2'-deoxyguanosine (8-OHdG), and total antioxidant capacity (TAC)) were quantified. RESULTS In the peripheral circulation, positive associations were observed between plasma folate and Cbl, and plasma TAC (P ≤ 0.01; P ≤ 0.01) and plasma NAD(H) (P ≤ 0.05; P ≤ 0.05) levels, respectively. Plasma folate was inversely associated with plasma Hcy concentrations (P ≤ 0.05); however, no statistically significant relationships were observed between plasma Hcy and plasma markers of inflammation, oxidative stress, or [NAD(H)]. Within the CNS plasma Hcy correlated positively with CSF IL-6 (P ≤ 0.01) and negatively with CSF NAD(H) (P ≤ 0.05) concentrations. An inverse association was observed between CSF folate and CSF levels of IL-6 (P ≤ 0.05). Unexpectedly, a positive association between CSF Cbl and CSF 8-OHdG levels was also found (P ≤ 0.01). DISCUSSION These results indicate that folate and Cbl concentrations may influence the levels of oxidative damage, inflammation, and NAD(H), both systemically and within the CNS.
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Rathod RS, Khaire AA, Kale AA, Joshi SR. Beneficial effects of omega-3 fatty acids and vitamin B12 supplementation on brain docosahexaenoic acid, brain derived neurotrophic factor, and cognitive performance in the second-generation Wistar rats. Biofactors 2015; 41:261-72. [PMID: 26249019 DOI: 10.1002/biof.1222] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 06/17/2015] [Indexed: 12/31/2022]
Abstract
In vegetarian population, vitamin B12 deficiency coexists with suboptimal levels of omega-3 fatty acids. Studies indicate a need for supplementation/fortification of vitamin B12 and omega-3 fatty acids to reduce the risk of brain disorders. We have described the effects of vitamin B12 and omega-3 fatty acid supplementation on brain development in F1 generation animals. The current study investigates the effects of vitamin B12 and omega-3 fatty acids supplementation on brain function and cognition. Pregnant Wistar rats were assigned the following groups: control, vitamin B12 deficient (BD), vitamin B12 deficient + omega-3 fatty acid (BDO), vitamin B12 supplemented (BS), vitamin B12 supplemented + omega-3 fatty acid (BSO). The same diets were continued for two generations. BDO group showed higher (P < 0.05) levels of BDNF (brain derived neurotrophic factor) and DHA (docosahexaenoic acid) in the cortex and hippocampus as compared with the BD group. The cognitive performance was also normalized in this group. BS showed comparable levels of DHA, BDNF (protein and mRNA), and CREB mRNA (cAMP response element-binding protein) to that of control group while Tropomyosin receptor kinase mRNA levels were higher. The combined vitamin B12 and omega-3 fatty acid supplementation further enhanced the levels of DHA (P < 0.05) and BDNF (P < 0.05) in the hippocampus and CREB mRNA (P < 0.01) in the cortex as compared with BS group. The cognitive performance of these animals was higher (P < 0.05) as compared with BS group. Our data indicates the beneficial effects of vitamin B12 and omega-3 fatty acid supplementation across two generations on brain development and function.
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Affiliation(s)
- Richa S Rathod
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune, India
| | - Amrita A Khaire
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune, India
| | - Anvita A Kale
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune, India
| | - Sadhana R Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth Deemed University, Pune, India
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Roy B, Trivedi R, Garg RK, Gupta PK, Tyagi R, Gupta RK. Assessment of functional and structural damage in brain parenchyma in patients with vitamin B12 deficiency: A longitudinal perfusion and diffusion tensor imaging study. Magn Reson Imaging 2015; 33:537-43. [PMID: 25708265 DOI: 10.1016/j.mri.2015.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 02/15/2015] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Vitamin B12 deficiency may cause neural tissue damage. Even in advanced stages, conventional imaging of brain usually appears normal in vitamin B12 deficient patients. The aim of this study was to assess the structural and functional changes in brain of patients with vitamin B12 deficiency before and after six weeks of vitamin B12 supplementation using diffusion tensor imaging and pseudo-continuous arterial spin labelling (PCASL). METHODS MR imaging including DTI and PCASL and neuropsychological tests (NPT) were performed in 16 patients with vitamin B12 deficiency and 16 controls before and after 6weeks of therapy. Cerebral blood flow (CBF) derived from PCASL and DTI indices was calculated in brain of patients with vitamin B12 deficiency and controls. RESULTS Patient with vitamin B12 deficiency showed altered neuropsychological scores and altered CBF as well as fractional anisotropy (FA) values in various brain regions as compared with controls. Both CBF values and neuropsychological scores showed complete reversibility at 6weeks post therapy. Though FA values showed significant recovery, it failed to show complete recovery. CONCLUSION Our results suggest that micro-structural recovery lags behind functional recovery in patients with vitamin B12 deficiency following therapy and CBF change may be used as an early predictor of complete recovery in patients with B12 deficiency.
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Affiliation(s)
- Bhaswati Roy
- Department of Radiology and Imaging, Fortis Memorial Research Institute, Gurgaon, Haryana, India
| | - Richa Trivedi
- Institute of Nuclear Medicine and Allied Science, Delhi, India
| | - Ravindra K Garg
- Department of Neurology, King George Medical University, Lucknow, India
| | - Pradeep K Gupta
- Department of Neurology, King George Medical University, Lucknow, India
| | - Ritu Tyagi
- Department of Radiology and Imaging, Fortis Memorial Research Institute, Gurgaon, Haryana, India
| | - Rakesh K Gupta
- Department of Radiology and Imaging, Fortis Memorial Research Institute, Gurgaon, Haryana, India.
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Li XH, Hou XY, Chen R. The roles of vitamin B12 and vitamin D in children with intractable epilepsy. Int J Clin Exp Med 2015; 8:764-769. [PMID: 25785055 PMCID: PMC4358510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 01/07/2015] [Indexed: 06/04/2023]
Abstract
Epilepsy is a chronic neurological disorder. Antiepileptic drugs (AEDs) can cause vitamin B12 or D deficiency in children with intractable epilepsy. In this study, we measured salivary superoxide dismutase (SOD) and metalloproteinsases (MMP) levels in the patients with vitamin B12 and vitamin D treatment. Cytokines and chemokines were measured using ELISA. The mean salivary value of SOD activity in the control group was 1.75 ± 0.21 U/ml. In the treatment group, the value was 1.33 ± 0.18 U/ml. The salivary MMP 2, MMP 3, and MMP 9 levels of the patients with vitamin D and vitamin B12 treatment were lower than that in the patients without vitamin D and vitamin B12 treatment. Interleukin 1β (IL-1β), IL-6, IL-8, macrophage inflammatory protein 1β (MIP-1β), monocyte chemoattractant protein-1 (MCP-1) and IFN-inducible protein 10 (IP-10) were significantly decreased in the cortex of our patients with vitamin D and vitamin B12 treatment. In this study, a clear association between vitamin D and vitamin B12 treatment and epilepsy was identified. We now plan to investigate the genetic factors that underlie vitamin D and vitamin B12 treatment in patients treated with AEDs.
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Affiliation(s)
- Xiao-Hong Li
- Department of Neurology, The First Hospital of China Medical UniversityNanjing North Street 155, Heping District, Shenyang City 110001, Liaoning Province, China
| | - Xiao-Yan Hou
- Department of Paediatrics, The First Hospital of Qiqihaer CityPark Road 30, Qiqihaer City 161000, Heilongjiang Province, China
| | - Rong Chen
- Department of Neurology, The First Hospital of China Medical UniversityNanjing North Street 155, Heping District, Shenyang City 110001, Liaoning Province, China
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Stough C, Simpson T, Lomas J, McPhee G, Billings C, Myers S, Oliver C, Downey LA. Reducing occupational stress with a B-vitamin focussed intervention: a randomized clinical trial: study protocol. Nutr J 2014; 13:122. [PMID: 25533338 PMCID: PMC4290459 DOI: 10.1186/1475-2891-13-122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 12/12/2014] [Indexed: 12/02/2022] Open
Abstract
Background Workplace stress in Australia and other western countries has been steadily increasing over the past decade. It can be observed not only in terms of increased compensation claims but also costs due to absenteeism, loss of productivity at work and reduced psychological and physiological health and well-being. Given the cost and pervasive effects of stress in the modern workforce, time efficient and cost-effective interventions capable of reducing occupational stress (or strain) and burnout are urgently required for the improved well-being of stressed employees. One intervention gaining scientific traction is supplementation with nutritional interventions, particularly the B group vitamins. Methods This study was developed to examine the effects of B group vitamins on workplace stress and mood variables with a sample of full-time employed older adults who subjectively report feeling stressed. The study is a randomized, double-blind, placebo-controlled, parallel-groups clinical trial where 200 (N = 100/group) participants will be randomized to receive Blackmores® Executive B Stress Formula or placebo daily for a period of 6 months. Participants will be tested at baseline and 6 months post-randomization on workplace stress, cognitive, personality and mood measures, cardiovascular (brachial and aortic systolic and diastolic blood pressures as well as arterial stiffness), biochemical (assays to measure inflammation and safety) as well as genetic assessments (to assess stress processing) and neuroimaging measures (to investigate in vivo mechanisms of action of B vitamins). In addition to this pre- and post- supplementation testing, participants will also complete a battery of self-report questionnaires online to assess their stress and mood once a month for the duration of the study. The primary aim of the study is to investigate the effects of B vitamin supplementation on work related stress. The secondary aims are to explore the mechanisms underpinning any changes in mood or workplace stress due to the B vitamin intervention by examining relationships between cognitive, biological, neuroimaging and cardiovascular variables over 6 months. A subset of 40 participants (N = 20/group) will undergo neuroimaging at baseline and at 6 months using functional magnetic resonance imaging (fMRI) and magnetic resonance spectroscopy (MRS) in order to further explore in vivo mechanisms of action of B vitamins. Trial registration Australia and New Zealand Clinical Trials Register (ANZCTR):ACTRN12613000294752
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Affiliation(s)
- Con Stough
- Centre for Human Psychopharmacology, Swinburne University, PO Box 218, HawthornVictoria, Melbourne, Australia.
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Hooper M, Hudson P, Porter F, McCaddon A. Patient journeys: diagnosis and treatment of pernicious anaemia. ACTA ACUST UNITED AC 2014; 23:376-81. [DOI: 10.12968/bjon.2014.23.7.376] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Fiona Porter
- Member/Trustee, The Pernicious Anaemia Society, Bridgend
| | - Andrew McCaddon
- Senior Honorary Research Fellow, Cardiff University, School of Medicine, Wrexham Technology Park, Wrexham
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