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Al Zoubi MS, Al-Oun MA, Abusahyoun FY, Abualarja MI, Al Smadi A, Al-Trad B, Awadin SA, Al-Batayneh K, Elaarag M, Al-Zoubi RM. Exploring the Impact of Cigarette Smoke Extracts on Vitamin B 12: Insights into the Transformation of Methylcobalamin and Hydroxycobalamin to Cyanocobalamin through In Vitro Evaluation. Biochem Res Int 2024; 2024:8827402. [PMID: 38665151 PMCID: PMC11045288 DOI: 10.1155/2024/8827402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/10/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
Vitamin B12 (cobalamin) is a water-soluble molecule required for the proper functioning of metabolism, blood and DNA synthesis, and neurological development. Vitamin B12 exists in several forms: methylcobalamin (MeCbl), adenosylcobalamin (AdoCbl), hydroxycobalamin (OHCbl), and cyanocobalamin (CNCbl). This study aimed to evaluate the effect of cigarette smoke on the chemical structure of methylcobalamin and hydroxycobalamin forms of vitamin B12. MeCbl and OHCbl were markedly affected by exposure to cigarette smoke. The resemblance of the Rt between MeCbl and OHCbl and CNCbl indicates that exposure to cigarette smoke extracts chemically alters MeCbl and OHCbl to CNCbl, warranting in vivo research investigations.
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Affiliation(s)
- Mazhar Salim Al Zoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Mus'aab A. Al-Oun
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Fatima Yacoub Abusahyoun
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Manal Issam Abualarja
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 211-63, Jordan
| | - Asmaa Al Smadi
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Bahaa Al-Trad
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Sura A. Awadin
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Khalid Al-Batayneh
- Department of Biological Sciences, Faculty of Sciences, Yarmouk University, Irbid 211-63, Jordan
| | - Mai Elaarag
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Raed M. Al-Zoubi
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar
- Department of Chemistry, Jordan University of Science and Technology, Irbid 22110, Jordan
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha 2713, Qatar
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2
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Munteanu C, Schwartz B. B Vitamins, Glucoronolactone and the Immune System: Bioavailability, Doses and Efficiency. Nutrients 2023; 16:24. [PMID: 38201854 PMCID: PMC10780850 DOI: 10.3390/nu16010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
The present review deals with two main ingredients of energy/power drinks: B vitamins and glucuronolactone and their possible effect on the immune system. There is a strong relationship between the recommended daily dose of selected B vitamins and a functional immune system. Regarding specific B vitamins: (1) Riboflavin is necessary for the optimization of reactive oxygen species (ROS) in the fight against bacterial infections caused by Staphylococcus aureus and Listeria monocytogenes. (2) Niacin administered within normal doses to obese rats can change the phenotype of skeletal fibers, and thereby affect muscle metabolism. This metabolic phenotype induced by niacin treatment is also confirmed by stimulation of the expression of genes involved in the metabolism of free fatty acids (FFAs) and oxidative phosphorylation at this level. (3) Vitamin B5 effects depend primarily on the dose, thus large doses can cause diarrhea or functional disorders of the digestive tract whereas normal levels are effective in wound healing, liver detoxification, and joint health support. (4) High vitamin B6 concentrations (>2000 mg per day) have been shown to exert a significant negative impact on the dorsal root ganglia. Whereas, at doses of approximately 70 ng/mL, sensory symptoms were reported in 80% of cases. (5) Chronic increases in vitamin B12 have been associated with the increased incidence of solid cancers. Additionally, glucuronolactone, whose effects are not well known, represents a controversial compound. (6) Supplementing with D-glucarates, such as glucuronolactone, may help the body's natural defense system function better to inhibit different tumor promoters and carcinogens and their consequences. Cumulatively, the present review aims to evaluate the relationship between the selected B vitamins group, glucuronolactone, and the immune system and their associations to bioavailability, doses, and efficiency.
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Affiliation(s)
- Camelia Munteanu
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Betty Schwartz
- The Institute of Biochemistry, Food Science and Nutrition, The School of Nutritional Sciences, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
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3
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O'Connor D, Molloy AM, Laird E, Kenny RA, O'Halloran AM. Sustaining an ageing population: the role of micronutrients in frailty and cognitive impairment. Proc Nutr Soc 2023; 82:315-328. [PMID: 36938798 DOI: 10.1017/s0029665123002707] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Age-related frailty and cognitive decline are complex multidimensional conditions that significantly impact the ability of older adults to sustain functional capacity and independence. While underlying causes remain poorly understood, nutrition continually emerges as one associated risk element. Many studies have addressed the importance of adequate nutrition in delaying the onset of these conditions, but the specific role of micronutrients is not well established. The consideration of pre-frailty as an outcome variable is also limited in the current literature. In this review, we focus on the potential value of maintaining micronutrient sufficiency to sustaining the health of the ageing population. Using data from the Irish longitudinal study on ageing, we consider several vitamins known to have a high prevalence of low status in older adults and their impact on pre-frailty, frailty and cognitive impairment. They include vitamin B12 and folate, both of which are associated with multiple biological mechanisms involved in long-term health, in particular in cognitive function; vitamin D, which has been associated with increased risk of musculoskeletal disorders, depression and other chronic diseases; and the carotenoids, lutein and zeaxanthin, that may help mitigate the risk of frailty and cognitive decline via their antioxidant and anti-inflammatory properties. We show that low concentrations of folate and carotenoids are implicated in poorer cognitive health and that the co-occurrence of multiple nutrient deficiencies confers greatest risk for frailty and pre-frailty in the Irish longitudinal study on ageing cohort. These health associations contribute to evidence needed to optimise micronutrient status for health in the older adult population.
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Affiliation(s)
- Deirdre O'Connor
- TILDA, Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin 2, Ireland
| | - Anne M Molloy
- School of Medicine, Trinity College Dublin, Dublin 2, Ireland
| | - Eamon Laird
- TILDA, Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin 2, Ireland
- Department of Physical Education and Sport, University of Limerick, Limerick, Ireland
| | - Rose Anne Kenny
- TILDA, Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin 2, Ireland
- Mercer's Institute for Successful Ageing, St James's Hospital, Dublin, Ireland
| | - Aisling M O'Halloran
- TILDA, Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin 2, Ireland
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Andriambelo B, Stiffel M, Roke K, Plourde M. New perspectives on randomized controlled trials with omega-3 fatty acid supplements and cognition: A scoping review. Ageing Res Rev 2023; 85:101835. [PMID: 36603691 DOI: 10.1016/j.arr.2022.101835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 01/03/2023]
Abstract
Long chain polyunsaturated omega-3 fatty acids (n-3 FA), such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are known to be important components in a healthy diet and contribute to healthy functioning of the heart and the brain, among other organs. Although there are epidemiological studies on the strong relationship between fish or n-3 FA consumption and lower risk of cognitive decline, results from randomized controlled trials (RCTs) are less consistent. Here, we performed a scoping review on RCTs with n-3 FA supplementation where cognition was evaluated. Seventy-eight RCTs published before April 2022 were included in this review. Among these RCTs, 43.6% reported a positive cognitive outcome after the consumption of n-3 FA compared to the placebo. However, there was a large diversity of populations studied (age ranges and health status), wide range of doses of EPA + DHA supplemented (79 mg/day - 5200 mg/day) and a multitude of tests evaluating cognition, mainly diagnostic tests, that were used to assess cognitive scores and overall cognitive status. RCTs were thereafter categorized into non-cognitively impaired middle-aged adults (n = 24), non-cognitively impaired older adults (n = 24), adults with subjective memory complaints (n = 14), adults with mild cognitive impairments (MCI, n = 9) and people with diagnosed dementia or other cognitive changes (n = 7). Among these categories, 66.7% of RCTs conducted with MCI adults reported a positive cognitive outcome when supplemented with n-3 FA vs. the placebo. Therefore, this scoping review provides rationale and questions to a) strengthen the design of future RCTs with n-3 FA for cognitive outcomes, and b) generate more informative data to support clinicians in their practice in assessing cognition before and after a nutritional intervention.
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Affiliation(s)
- B Andriambelo
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada, Centre de Recherche sur le Vieillissement, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada; Institut de la nutrition et des aliments fonctionnels, Université Laval, QC, Canada
| | - M Stiffel
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada, Centre de Recherche sur le Vieillissement, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada; Institut de la nutrition et des aliments fonctionnels, Université Laval, QC, Canada
| | - K Roke
- GOED- Global Organization for EPA and DHA Omega-3, Salt Lake City, UT, United States
| | - M Plourde
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada, Centre de Recherche sur le Vieillissement, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada; Institut de la nutrition et des aliments fonctionnels, Université Laval, QC, Canada.
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Mustafa Khalid N, Haron H, Shahar S, Fenech M. Current Evidence on the Association of Micronutrient Malnutrition with Mild Cognitive Impairment, Frailty, and Cognitive Frailty among Older Adults: A Scoping Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15722. [PMID: 36497797 PMCID: PMC9736259 DOI: 10.3390/ijerph192315722] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/10/2022] [Accepted: 11/13/2022] [Indexed: 06/17/2023]
Abstract
Micronutrient malnutrition is thought to play an important role in the cause of cognitive impairment and physical frailty. The purpose of this scoping review was to map current evidence on the association between micronutrient deficiency in blood and mild cognitive impairment, frailty, and cognitive frailty among older adults. The scoping review was conducted based on the 2005 methodological framework by Arksey and O'Malley. The search strategy for potential literature on micronutrient concentration in blood and cognitive frailty was retrieved based on the keywords using electronic databases (PubMed, Cochrane Library, Google Scholar, Ovid, and Science Direct) from January 2010 to December 2021. Gray literature was also included in the searches. A total of 4310 articles were retrieved and 43 articles were incorporated in the review. Findings revealed a trend of significant association between low levels of B vitamins (folate and vitamin B12), vitamin D, vitamin A, vitamin E, omega 3 fatty acid, and albumin, and high homocysteine levels in blood with an increased risk of mild cognitive impairment among older adults. The results also indicated that low vitamin D levels, albumin, and antioxidants (lutein and zeaxanthin) in blood were significantly associated with frailty among older adults, while β-cryptoxanthin and zeaxanthin in blood were inversely associated with the risk of cognitive frailty. Vitamin D and antioxidants seemed to be targeted nutrients for the prevention of cognitive frailty. In conclusion, a wide range of micronutrient deficiency was associated with either mild cognitive impairment or frailty; however, little evidence exists on the dual impairment, i.e., cognitive frailty. This scoping review can serve as preliminary evidence for the association between micronutrient deficiency in blood and mild cognitive impairment, frailty, and cognitive frailty among older adults and prove the relevancy of the topic for future systematic reviews.
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Affiliation(s)
- Norhayati Mustafa Khalid
- Center for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Hasnah Haron
- Center for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Suzana Shahar
- Center for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Michael Fenech
- Center for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
- Genome Health Foundation, North Brighton, SA 5048, Australia
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Non-Linear Association between Folate/Vitamin B12 Status and Cognitive Function in Older Adults. Nutrients 2022; 14:nu14122443. [PMID: 35745173 PMCID: PMC9227588 DOI: 10.3390/nu14122443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/31/2022] [Accepted: 06/09/2022] [Indexed: 12/10/2022] Open
Abstract
Although folate and vitamin B12 status have long been implicated in cognitive function, there is no consensus on the threshold of folate and vitamin B12 for assessing their impacts on cognition. The goal of this study was to detail the association between folate and vitamin B12 with cognitive performance. We analyzed cross-sectional data of older adults (≥60 y; n = 2204) from the NHANES (National Health and Nutrition Examination Surveys) cohort from 2011–2014. The restricted cubic spline model was used for describing the associations between serum total folate, RBC folate, 5-methyltetrahydrofolate, and vitamin B12 and the Consortium to Establish a Registry for Alzheimer’s Disease Word Learning (CERAD-WL) and Delayed Recall (CERAD-DR) tests, the Animal Fluency (AF) test, and the Digit Symbol Substitution Test (DSST), respectively. Older adults with a different folate and vitamin B12 status were clustered by artificial intelligence unsupervised learning. The statistically significant non-linear relationships between the markers of folate or vitamin B12 status and cognitive function were found after adjustments for potential confounders. Inverse U-shaped associations between folate/vitamin B12 status and cognitive function were observed, and the estimated breakpoint was described. No statistically significant interaction between vitamin B12 and folate status on cognitive function was observed in the current models. In addition, based on the biochemical examination of these four markers, older adults could be assigned into three clusters representing relatively low, medium, and high folate/vitamin B12 status with significantly different scores on the CERAD-DR and DSST. Low or high folate and vitamin B12 status affected selective domains of cognition, and was associated with suboptimal cognitive test outcomes.
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7
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Abstract
Of the water-soluble vitamins, vitamin B12 (B12) has the lowest daily requirement. It also has several unique properties including a complex pathway for its absorption and assimilation requiring intact gastric and terminal small intestinal function, an enterohepatic pathway, and several dedicated binding proteins and chaperons. The many causes of B12 deficiency include malabsorption and defects in cellular delivery and uptake, as well as limited dietary intake. B12 is required as a cofactor for only two reactions in humans, the cytosolic methionine synthase reaction and the mitochondrial methymalonyl CoA mutase reaction. Disruption of either of these reactions gives rise to B12 deficiency. Although more common with advancing age, because of the higher prevalence of malabsorptive disorders in the elderly, B12 deficiency is widely distributed across all age groups particularly where food insecurity occurs. The consequences and severity of B12 deficiency are variable depending on the degree of deficiency and its duration. Major organ systems affected include the blood, bone marrow and nervous system. Megaloblastic anemia results from a defect in thymidine and therefore DNA synthesis in rapidly dividing cells. Nervous system involvement is varied, some of which results from defective myelin synthesis and repair. Cognitive impairment and psychosis may also occur. Diagnosis of B12 deficiency rests on clinical suspicion followed by laboratory testing, which consists of a panel of tests, that together provide clinically reliable predictive indices. B12 metabolism and deficiency is closely intertwined with folate, another B-vitamin. This chapter explores the various aspects of a unique and fascinating micronutrient.
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Affiliation(s)
- Ralph Green
- Department of Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA, United States.
| | - Joshua W Miller
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, United States
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Abstract
Telomeres are non-coding nucleoprotein structures consisting of a highly conserved tandem repeat DNA sequence that caps the ends of chromosomes in eukaryotes. Telomeres confer chromosomal stability, protect the genome from nucleolytic degradation, avoid aberrant recombination and improper repair, and prevent random fusion of chromosomes. The end-replication problem results in telomere shortening with every cell division, eventually leading to cellular senescence and aging. Telomere length (TL) is thereby an ideal candidate for "biological aging." Telomeres possess guanine-rich repeats, which are highly susceptible to oxidative stress. Epidemiological studies have indicated the association of telomere attrition with mortality and various age-related diseases. Micronutrients comprising vitamins and minerals act as potential modulators of stress and can influence TL. Research has indicated that vitamin B12 (B12) regulates oxidative stress and maintains genomic stability, thereby influencing telomere integrity and cellular aging. The deficiency of B12 leads to elevated levels of homocysteine, which reduces the methylation potential and increases oxidative stress, thereby compromising the TL. Telomere shortening and mitochondrial dysfunction are independently linked to aging. However, they are connected through telomerase reverse transcriptase activity, which regulates mitochondrial biogenesis. Further, experimental evidence indicated the positive association of B12 with relative TL and mitochondrial DNA copy number, an indirect index of mitochondrial biogenesis. The present chapter provides some insights into the role of B12 in influencing TL. Exploring their association might open new avenues to understand the pathophysiology of aging and age-related diseases.
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Kozyraki R, Verroust P, Cases O. Cubilin, the intrinsic factor-vitamin B12 receptor. VITAMINS AND HORMONES 2022; 119:65-119. [PMID: 35337634 DOI: 10.1016/bs.vh.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cubilin (CUBN), the intrinsic factor-vitamin B12 receptor is a large endocytic protein involved in various physiological functions: vitamin B12 uptake in the gut; reabsorption of albumin and maturation of vitamin D in the kidney; nutrient delivery during embryonic development. Cubilin is an atypical receptor, peripherally associated to the plasma membrane. The transmembrane proteins amnionless (AMN) and Lrp2/Megalin are the currently known molecular partners contributing to plasma membrane transport and internalization of Cubilin. The role of Cubilin/Amn complex in the handling of vitamin B12 in health and disease has extensively been studied and so is the role of the Cubilin-Lrp2 tandem in renal pathophysiology. Accumulating evidence strongly supports a role of Cubilin in some developmental defects including impaired closure of the neural tube. Are these defects primarily caused by the dysfunction of a specific Cubilin ligand or are they secondary to impaired vitamin B12 or protein uptake? We will present the established Cubilin functions, discuss the developmental data and provide an overview of the emerging implications of Cubilin in the field of cardiovascular disease and cancer pathogenesis.
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Affiliation(s)
- Renata Kozyraki
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris, Paris, France.
| | - Pierre Verroust
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris, Paris, France
| | - Olivier Cases
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris, Paris, France
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Affiliation(s)
- Bernhard Kräutler
- Institute of Organic Chemistry and Centre of Molecular Biosciences, University of Innsbruck, Innsbruck, Austria.
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Wang C, Zhang Y, Shu J, Gu C, Yu Y, Liu W. Association Between Methylmalonic Acid and Cognition: A Systematic Review and Meta-Analysis. Front Pediatr 2022; 10:901956. [PMID: 35844735 PMCID: PMC9276928 DOI: 10.3389/fped.2022.901956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/09/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Methylmalonic acid (MMA) is an intermediate metabolite of human body. The content of MMA in the blood of healthy people is very low, and its concentration will increase in some diseases and elderly people. Recent studies have shown that MMA has a variety of biological functions. The correlation between MMA and cognition, one of the important functions of the nervous system, is still uncertain. OBJECTIVE Meta-analyses were performed to assess whether elevated MMA was associated with the risk of cognitive decline. MATERIALS AND METHODS Cross-sectional studies, randomized controlled studies, and case-control studies on the relationship between MMA and cognition were obtained by searching PubMed, Web of Science, EMBASE, ProQuest, WANFANG MED ONLINE, China National Knowledge Infrastructure (CNKI) and Chongqing VIP until May 2022. Two researchers independently selected studies according to inclusion and exclusion criteria, evaluated study quality and extracted data. Meta-analyses were performed using Review Manager 5.4 software. The sensitivity analysis of meta-analysis was performed by One by one exclusion method. RESULTS A total of 11 studies were included, including six cross-sectional studies, two randomized controlled studies, and three case-control studies, with a sample of 16,533 subjects. Meta-analysis showed that there was no significant difference in cognitive level between high-level MMA subjects and low-level MMA subjects in the general population [SMD = -2.19, 95% CI (-4.76 ∼ 0.38), Z = 1.67, P = 0.09]. In the population supplemented with VitB12, the increase of MMA level caused by VitB12 supplementation was not related to the change of cognition [SMD = 0.32, 95% CI (-0.19 ∼ 0.84) z = 1.22, P = 0.22]. There was also no significant difference in MMA levels between patients with dementia and the control group [WMD = 20.89, 95% CI (-5.13 ∼ 46.92), z = 1.57, P = 0.12]. CONCLUSION In the general population, whether VitB12 is supplemented or not, there is no correlation between the increase of MMA level and the decrease of cognitive level. In dementia diseases, the level of MMA did not change significantly. High levels of MMA may not be a risk factor for cognitive impairment. The exact relationship between MMA and cognition needs further research. SYSTEMATIC REVIEW REGISTRATION [https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021266310], identifier [CRD42021266310].
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Affiliation(s)
- Chao Wang
- Tianjin Pediatric Research Institute, Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, China
| | - Ying Zhang
- Tianjin Pediatric Research Institute, Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, China
| | - Jianbo Shu
- Tianjin Pediatric Research Institute, Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, China
| | - Chunyu Gu
- Tianjin Pediatric Research Institute, Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, China
| | - Yuping Yu
- Tianjin Pediatric Research Institute, Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, China
| | - Wei Liu
- Tianjin Children's Hospital, Children's Hospital of Tianjin University, Tianjin, China
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Montegut C, Correard F, Nouguerède E, Rey D, Chevalier T, Meurer M, Deville JL, Baciuchka M, Pradel V, Greillier L, Villani P, Couderc AL. Prognostic Value of the B12/CRP Index in Older Systemically Treatable Cancer Patients. Cancers (Basel) 2021; 14:cancers14010169. [PMID: 35008333 PMCID: PMC8750046 DOI: 10.3390/cancers14010169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Decisions on cancer treatment for older patients take into account not only comorbidities but also physical and cognitive resources. Comprehensive geriatric assessment (CGA) in older patients assesses geriatric frailties but does not include standardized biological tests. The B12/CRP index (BCI) was first intended as a prognosis tool to predict 90-day mortality after advanced cancer diagnosis. This study shows the prognostic link between BCI value and overall cancer survival time in older people, and the association between BCI value and geriatric frailty before cancer treatment in this population. Abstract Background: While comprehensive geriatric assessment (CGA) in older patients treated for cancer assesses several related domains, it does not include standardized biological tests. The present study aimed to: (1) assess the prognosis value of the B12/CRP index (BCI) in a population of systemically treatable older patients with cancer and (2) analyze the association between BCI value and pre-existing geriatric frailty. Method: We conducted a retrospective observational study between January 2016 and June 2020 at Marseille University Hospital. All consecutive cancer patients aged 70 years and over before initiating systemic therapy were included. Results: Of the 863 patients included, 60.5% were men and 42.5% had metastatic stage cancer. Mean age was 81 years. The low-BCI group (≤10,000) had a significantly longer survival time than the mid-BCI (10,000 < BCI ≤ 40,000) and high-BCI (BCI > 40,000) groups (HR = 0.327, CI95% [0.26–0.42], p-value = 0.0001). Mid- and high-BCI (BCI > 40,000) values were associated with impaired functional status and malnutrition. Conclusion: A BCI > 10,000 would appear to be a good biological prognostic factor for poor survival times and pre-existing geriatric impairment in older cancer patients before they initiate systemic treatment.
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Affiliation(s)
- Coline Montegut
- Internal Medicine, Geriatrics and Therapeutic Unit, Assistance Publique des Hôpitaux de Marseille (AP-HM), 13009 Marseille, France; (C.M.); (E.N.); (D.R.); (P.V.)
- Coordination Unit for Geriatric Oncology (UCOG), PACA West, 13009 Marseille, France
| | - Florian Correard
- Pharmacy Department, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13005 Marseille, France;
| | - Emilie Nouguerède
- Internal Medicine, Geriatrics and Therapeutic Unit, Assistance Publique des Hôpitaux de Marseille (AP-HM), 13009 Marseille, France; (C.M.); (E.N.); (D.R.); (P.V.)
- Coordination Unit for Geriatric Oncology (UCOG), PACA West, 13009 Marseille, France
| | - Dominique Rey
- Internal Medicine, Geriatrics and Therapeutic Unit, Assistance Publique des Hôpitaux de Marseille (AP-HM), 13009 Marseille, France; (C.M.); (E.N.); (D.R.); (P.V.)
- Coordination Unit for Geriatric Oncology (UCOG), PACA West, 13009 Marseille, France
| | - Thomas Chevalier
- Oncology Unit, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13005 Marseille, France; (T.C.); (M.M.); (J.-L.D.)
| | - Marie Meurer
- Oncology Unit, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13005 Marseille, France; (T.C.); (M.M.); (J.-L.D.)
| | - Jean-Laurent Deville
- Oncology Unit, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13005 Marseille, France; (T.C.); (M.M.); (J.-L.D.)
| | - Marjorie Baciuchka
- Multidisciplinary Oncology and Therapeutic Innovations Department, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13015 Marseille, France; (M.B.); (L.G.)
| | - Vincent Pradel
- Public Health Department, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13005 Marseille, France;
| | - Laurent Greillier
- Multidisciplinary Oncology and Therapeutic Innovations Department, Assistance Publique-Hôpitaux de Marseille (AP-HM), 13015 Marseille, France; (M.B.); (L.G.)
- Marseille Cancer Research Center (CRCM), National Institute of Health and Medical Research (INSERM), National Center for Scientific Research (CNRS), Aix-Marseille University, 13009 Marseille, France
| | - Patrick Villani
- Internal Medicine, Geriatrics and Therapeutic Unit, Assistance Publique des Hôpitaux de Marseille (AP-HM), 13009 Marseille, France; (C.M.); (E.N.); (D.R.); (P.V.)
- Coordination Unit for Geriatric Oncology (UCOG), PACA West, 13009 Marseille, France
- Anthropology Bio-Cultural, Law and Ethics (ADES), French Blood Agency (EFS), National Center for Scientific Research (CNRS), Aix-Marseille University, 13009 Marseille, France
| | - Anne-Laure Couderc
- Internal Medicine, Geriatrics and Therapeutic Unit, Assistance Publique des Hôpitaux de Marseille (AP-HM), 13009 Marseille, France; (C.M.); (E.N.); (D.R.); (P.V.)
- Coordination Unit for Geriatric Oncology (UCOG), PACA West, 13009 Marseille, France
- Anthropology Bio-Cultural, Law and Ethics (ADES), French Blood Agency (EFS), National Center for Scientific Research (CNRS), Aix-Marseille University, 13009 Marseille, France
- Correspondence: ; Tel.: +33-491744530; Fax: +33-491744833
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Sundarakumar JS, Shahul Hameed SK, Ravindranath V. Burden of Vitamin D, Vitamin B12 and Folic Acid Deficiencies in an Aging, Rural Indian Community. Front Public Health 2021; 9:707036. [PMID: 34540786 PMCID: PMC8446357 DOI: 10.3389/fpubh.2021.707036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/29/2021] [Indexed: 12/04/2022] Open
Abstract
Introduction: The important role of micronutrient deficiencies in aging-related disorders including dementia is becoming increasingly evident. However, information on their burden in India is scarce, especially, among aging and rural communities. Methods: Prevalence of vitamin D, B12 and folic acid deficiency was measured in an ongoing, aging cohort, from rural India–Srinivaspura Aging Neurosenescence and COGnition (SANSCOG) study cohort. Serum level estimation of vitamin D, B12 and folic acid, using chemiluminescence immunoassay, was performed on 1648 subjects (872 males, 776 females). Results: Mean vitamin D, B12 and folic acid levels were 23.4 ± 10.6 ng/ml, 277.4 ± 194.4 pg/ml and 6 ± 3.5 ng/ml), respectively. Prevalence of low vitamin D (<30 ng/ml), vitamin D deficiency (<20 ng/ml), B12 deficiency (<200 pg/ml) and folic acid deficiency (<3 ng/ml) were 75.7, 39.1, 42.3, and 11.1%, respectively. Significantly more women had vitamin D deficiency, whereas more men had folic acid deficiency. Women belonging to the oldest age group (≥75 years) had the maximum burden of low vitamin D (94.3%) and folic acid deficiency (21.8%). Discussion: Older, rural-dwelling Indians have high burden of vitamin D and B12 deficiencies, which is concerning given the potentially negative consequences on cognition, immunity and frailty in the aging population. Urgent public health strategies are needed to address this issue and prevent or mitigate adverse consequences.
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Vitamin B 12-folic acid supplementation regulates neuronal immediate early gene expression and improves hippocampal dendritic arborization and memory in old male mice. Neurochem Int 2021; 150:105181. [PMID: 34509560 DOI: 10.1016/j.neuint.2021.105181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 01/19/2023]
Abstract
As the relationship among diet, brain aging and memory is complex, it provides ample opportunity for research in multiple directions including behaviour, epigenetics and neuroplasticity. Nutritional deficiencies together with genetic and environmental factors are the major cause of many age-associated pathologies including memory loss. A compromised vitamin B12-folate status in older people is highly prevalent worldwide. Researchers have established a close association between the adequate level of B12-folate and the maintenance of cognitive brain functions. One of the main reasons for age-associated memory loss is downregulation of neuronal immediate early genes (nIEGs). Therefore, we hypothesize here that vitamin B12-folic acid supplementation in old mice can improve memory by altering the expression status of nIEGs. To check this, 72-week-old male Swiss albino mice were orally administered with 2 μg of vitamin B12 and 22 μg of folic acid/mouse/day for eight weeks. Such supplementation improved recognition memory in old and altered the expression of nIEGs. The expression of nIEGs was further found to be regulated by changes in DNA methylation at their promoter regions and CREB phosphorylation (pCREB). In addition, Golgi-Cox staining showed significant improvement in dendritic length, number of branching points and spine density of hippocampal CA1 pyramidal neurons by B12-folic acid supplementation. Taken together, these findings suggest that vitamin B12-folic acid supplementation regulates nIEGs expression and improves dendritic arborization of hippocampal neurons and memory in old male mice.
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15
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Shavlovskaya OA, Bokova IA, Shavlovskiy NI, Yukhnovskaya YD. [Cobalamin in the complex treatment and prevention of cognitive impairment]. Zh Nevrol Psikhiatr Im S S Korsakova 2021; 121:132-137. [PMID: 33834731 DOI: 10.17116/jnevro2021121031132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cognitive impairment (CI) develops not only in structural damage to the central nervous system, but also in encephalopathies of dysmetabolic and deficiency etiology. Recently, special attention is focused on the appearance of CI due to the deficiency of cobalamin (vitamin B12) and folic acid (FA), the change in the level of homocysteine (HC). To detect vitamin B12 deficiency is possible by examining key biomarkers in serum based on a decrease in the levels of vitamin B12 and holotranscobalamin, and levels of methylmalonic acid (MMA) and HC. The article presents an analysis of studies conducted in Norway, Korea, India, and other countries to assess the risks of CI in the presence of reduced levels of vitamin B12 in the elderly, which demonstrated a decrease in brain volume in the elderly (according to MRI data) in combination with altered test parameters that assess cognitive functions. In many studies, female patients with reduced levels of vitamin B12 predominated among the studied patients. Also, some studies have demonstrated the effectiveness of complex CI therapy with the inclusion of vitamin B12 (both for oral and intravenous administration). Oral vitamin B12 therapy at a dose of 1000 μg has been shown to be adequate for the treatment of vitamin B12 deficiency. Also, the administration of vitamin B12 for prophylactic purposes is recommended for patients with subnormal or borderline concentrations of vitamin B12 in the blood serum.
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Affiliation(s)
- O A Shavlovskaya
- International University of Restorative Medicine, Moscow, Russia
| | - I A Bokova
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - N I Shavlovskiy
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Yu D Yukhnovskaya
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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16
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Zupo R, Griseta C, Battista P, Donghia R, Guerra V, Castellana F, Lampignano L, Bortone I, Lozupone M, Giannelli G, De Pergola G, Boeing H, Sardone R, Panza F. Role of plant-based diet in late-life cognitive decline: results from the Salus in Apulia Study. Nutr Neurosci 2021; 25:1300-1309. [PMID: 33448914 DOI: 10.1080/1028415x.2020.1853416] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Consistency among population-based studies investigating the relationship between diet and cognition in older inhabitants in the Mediterranean area is poor. The present study investigated whether diet changes over 12 years were associated with cognitive function in older people in Southern-Italy. METHODS From the 'Salus in Apulia Study', that includes the MICOL and GreatAGE Studies, 584 participants were selected, firstly enrolled in MICOL3 (M3) and later in the GreatAGE Study (MICOL4, M4). Foods and micronutrients intake were recorded in both studies, and global cognitive function in M4, assessed with the Mini Mental State Examination. RESULTS Plant-based foods, particularly coffee and vegetables, as well as vitamin A sources, were inversely associated to age-related cognitive impairment. Alcohol consumption showed a detrimental role on cognition, while red meat appeared to be beneficial in the present study, although its role is traditionally considered harmful for cognitive function. DISCUSSION Our study confirmed that a traditional Mediterranean dietary pattern based on agricultural products and low alcohol consumption may help to prevent/delay age-related cognitive impairment.
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Affiliation(s)
- Roberta Zupo
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Chiara Griseta
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | | | - Rossella Donghia
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy.,Unit of Epidemiology and Biostatistics, National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Vito Guerra
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy.,Unit of Epidemiology and Biostatistics, National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Fabio Castellana
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Luisa Lampignano
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Ilaria Bortone
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Madia Lozupone
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy.,Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Gianluigi Giannelli
- Scientific Direction, National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Giovanni De Pergola
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy.,Department of Biomedical Science and Human Oncology, University of Bari, School of Medicine, Policlinico, Bari, Italy
| | - Heiner Boeing
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy.,Department of Epidemiology (closed), German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - Rodolfo Sardone
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
| | - Francesco Panza
- Healthy Aging Phenotypes Research Unit - 'Salus in Apulia Study' - National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Bari, Italy
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17
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Travica N, Ried K, Hudson I, Pipingas A, Scholey A, Sali A. The effects of surgery on plasma vitamin C concentrations and cognitive function: a protocol for a prospective, observational study. Nutr Health 2020; 27:283-292. [PMID: 33356889 DOI: 10.1177/0260106020982343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Post-operative cognitive function has recently become an area of focus for researchers. The most commonly reported perioperative neurocognitive disorders include delirium and longer-lasting post-operative cognitive dysfunctions. The contributing pathophysiology to these complications remains unclear. A number of studies have systematically revealed a significant post-operative plasma vitamin C depletion. Recent insights have also exhibited a link between plasma vitamin C and numerous biological roles in brain function, with deficiencies potentially compromising cognitive function. AIM The present prospective, observational study will investigate whether there is a possible link between post-operative plasma vitamin C depletion and cognitive dysfunction. METHODS The cohort will consist of surgical patients, between the ages of 65 and 85 years, undergoing hip replacement surgery or a control group not exposed to surgical trauma. Participants will have their plasma vitamin C concentrations tested alongside a battery of computer-based cognitive assessments and paper and pen based cognitive tests. Further assessments will include dietary nutritional intake, serum vitamin B12 concentrations, cardiovascular biomarkers, wound healing, sleep quality, pain, mood and inflammatory cytokines. Participants will be tested at baseline (1-2 weeks prior to surgery) and subsequent testing sessions will be performed within 1 week, 4-6 weeks, 3 months and 6 months following surgery. CONCLUSIONS Findings from this observational study will provide insight into whether there is a concomitant depletion in post-operative plasma vitamin C concentrations and cognition function. Extrapolated results may prompt future, extensive randomized controlled trials to assess whether vitamin C supplementation can alleviate or even prevent post-operative cognitive complications.
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Affiliation(s)
- Nikolaj Travica
- Centre for Human Psychopharmacology, 3783Swinburne University of Technology, Australia.,296252The National Institute of Integrative Medicine, Australia
| | - Karin Ried
- 296252The National Institute of Integrative Medicine, Australia.,University of Adelaide, Australia.,Torrens University, Australia
| | - Irene Hudson
- Centre for Human Psychopharmacology, 3783Swinburne University of Technology, Australia.,Department of Mathematical Sciences, 5376Royal Melbourne Institute of Technology (RMIT), Australia.,School of Mathematical and Physical Science, University of Newcastle, Australia
| | - Andrew Pipingas
- Centre for Human Psychopharmacology, 3783Swinburne University of Technology, Australia
| | - Andrew Scholey
- Centre for Human Psychopharmacology, 3783Swinburne University of Technology, Australia
| | - Avni Sali
- 296252The National Institute of Integrative Medicine, Australia
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Abstract
The recently delineated structure- and reactivity-based concept of antivitamins B12 has begun to bear fruit by the generation, and study, of a range of such B12 -dummies, either vitamin B12 -derived, or transition metal analogues that also represent potential antivitamins B12 or specific B12 -antimetabolites. As reviewed here, this has opened up new research avenues in organometallic B12 -chemistry and bioinorganic coordination chemistry. Exploratory studies with antivitamins B12 have, furthermore, revealed some of their potential, as pharmacologically interesting compounds, for inducing B12 -deficiency in a range of organisms, from hospital resistant bacteria to laboratory mice. The derived capacity of antivitamins B12 to induce functional B12 -deficiency in mammalian cells and organs also suggest their valuable potential as growth inhibitors of cancerous human and animal cells.
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Affiliation(s)
- Bernhard Kräutler
- Institute of Organic Chemistry and Center for Molecular Biosciences (CMBI)University of Innsbruck6020InnsbruckAustria
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Boumenna T, Scott TM, Lee JS, Palacios N, Tucker KL. Folate, vitamin B-12, and cognitive function in the Boston Puerto Rican Health Study. Am J Clin Nutr 2020; 113:179-186. [PMID: 33184638 PMCID: PMC7779227 DOI: 10.1093/ajcn/nqaa293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 09/23/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND There is evidence that low plasma vitamin B-12 and folate individually, as well as an imbalance of high folic acid and low vitamin B-12 status, may be associated with lower cognitive function. OBJECTIVES We examined dietary and plasma folate and vitamin B-12 status, and their interaction, in relation to cognitive function in a cohort of older Puerto Rican adults. METHODS The design is cross-sectional, with 1408 participants from the Boston Puerto Rican Health Study (mean ± SD age: 57.1 ± 7.9 y). Cognitive function was assessed with a comprehensive test battery and a global composite score was derived. Plasma folate, vitamin B-12, and methylmalonic acid (MMA) were assessed in fasting blood samples. RESULTS After adjusting for covariates, high plasma folate and high plasma vitamin B-12 were each positively associated with global cognitive score (β: 0.063; 95% CI: -0.0008, 0.127; P = 0.053 and β: 0.062; 95% CI: 0.009, 0.12; P = 0.023, respectively, for logged values, and β: 0.002; 95% CI: 0.00005, 0.004; P-trend = 0.044 and β: 0.00018; 95% CI: 0.00001, 0.0003; P-trend = 0.036, respectively, across tertiles). Nine percent of participants had vitamin B-12 deficiency (plasma vitamin B-12 < 148 pmol/L or MMA > 271 nmol/L), but none were folate deficient (plasma folate < 4.53 nmol/L). Deficient compared with higher vitamin B-12 was significantly associated with lower cognitive score (β: -0.119; 95% CI: -0.208, -0.029; P = 0.009). We could not examine the interaction for vitamin B-12 deficiency and high plasma folate, because there were too few individuals (<1% of the cohort) in this category to draw conclusions. CONCLUSIONS Low plasma vitamin B-12 and low plasma folate were each associated with worse cognitive function in this population. Vitamin B-12 deficiency was prevalent and clearly associated with poorer cognitive function. More attention should be given to identification and treatment of vitamin B-12 deficiency in this population. Additional, larger studies are needed to examine the effect of vitamin B-12 deficiency in the presence of high exposure to folic acid.
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Affiliation(s)
- Tahani Boumenna
- Department of Public Health, University of Massachusetts Lowell, Lowell, MA, USA
| | - Tammy M Scott
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA,Department of Psychiatry, School of Medicine, Tufts University, Boston, MA, USA
| | - Jong-Soo Lee
- Department of Mathematical Sciences, University of Massachusetts Lowell, Lowell, MA, USA
| | - Natalia Palacios
- Department of Public Health, University of Massachusetts Lowell, Lowell, MA, USA,Department of Nutrition, Harvard School of Public Health, Boston, MA, USA,Geriatric Research Education Clinical Center, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA, USA
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20
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Visaria A, Lo D, Maniar P. Important considerations when assessing the effect of essential fatty acids on cognitive performance. Nutr J 2020; 19:100. [PMID: 32917237 PMCID: PMC7488523 DOI: 10.1186/s12937-020-00619-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 09/02/2020] [Indexed: 11/21/2022] Open
Abstract
Over the past decade, there have been many studies determining the effect of dietary ω-3 and ω-6 fatty acids intake on cognitive performance; however, they have largely been inconsistent in their conclusions. In this letter, we provide context to the article by Dong et al., titled “Association of dietary ω-3 and ω-6 fatty acids intake with cognitive performance in older adults: National Health and nutrition examination Survey (NHANES) 2011–2014” and provide methodological considerations with regards to covariate measurement and inclusion that can be generalized to future cross-sectional studies. In particular, delineating 1) the type and source of fatty acid, in context of an individual’s overall dietary patterns, 2) sociobehavioral risk factors and physical & mental comorbidities, 3) and daily cognitive activity are important to adequately control for covariates.
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Affiliation(s)
- Aayush Visaria
- Department of Medicine, Rutgers New Jersey Medical School, 185 South Orange Ave, Newark, NJ, 07103, USA. .,North American Disease Intervention, Rutgers University, New Brunswick, NJ, USA.
| | - David Lo
- North American Disease Intervention, Rutgers University, New Brunswick, NJ, USA
| | - Pranay Maniar
- North American Disease Intervention, Rutgers University, New Brunswick, NJ, USA.,New Jersey Institute of Technology, Newark, NJ, USA
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21
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Plasma concentrations of vitamin B 12 and folate and global cognitive function in an older population: cross-sectional findings from The Irish Longitudinal Study on Ageing (TILDA). Br J Nutr 2020; 124:602-610. [PMID: 32329423 DOI: 10.1017/s0007114520001427] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The uncertainty surrounding high intakes of folic acid and associations with cognitive decline in older adults with low vitamin B12 status has been an obstacle to mandatory folic acid fortification for many years. We estimated the prevalence of combinations of low/normal/high vitamin B12 and folate status and compared associations with global cognitive function using two approaches, of individuals in a population-based study of those aged ≥50 years in the Republic of Ireland. Cross-sectional data from 3781 men and women from Wave 1 of The Irish Longitudinal Study on Ageing were analysed. Global cognitive function was assessed by the Mini Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA). Prevalence estimates for combinations of vitamin B12 (plasma vitamin B12 < or ≥258 pmol/l) and folate (plasma folate ≤ or >45·3 nmol/l) concentrations were generated. Negative binomial regression models were used to investigate the associations of vitamin B12 and folate status with global cognitive function. Of the participants, 1·5 % (n 51) had low vitamin B12 (<258 pmol/l) and high folate (>45·3 nmol/l) status. Global cognitive performance was not significantly reduced in these individuals when compared with those with normal status for both B-vitamins (n 2433). Those with normal vitamin B12/high folate status (7·6 %) had better cognitive performance (MMSE: incidence rate ratio (IRR) 0·82, 95 % CI 0·68, 0·99; P = 0·043, MoCA: IRR 0·89, 95 % CI 0·80, 0·99; P = 0·025). We demonstrated that high folate status was not associated with lower cognitive scores in older adults with low vitamin B12 status. These findings provide important safety information that could guide fortification policy recommendations in Europe.
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Travica N, Ried K, Hudson I, Sali A, Scholey A, Pipingas A. Gender Differences in Plasma Vitamin C Concentrations and Cognitive Function: A Pilot Cross-Sectional Study in Healthy Adults. Curr Dev Nutr 2020; 4:nzaa038. [PMID: 32337476 PMCID: PMC7170048 DOI: 10.1093/cdn/nzaa038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/03/2020] [Accepted: 03/09/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND A number of investigations have highlighted the importance of vitamin C in maintaining brain health. Biologically, vitamin C has exhibited roles in neuromodulation, neurodevelopment, vascular support, and neuroprotection. Vitamin C's contribution to cognitive function in both cognitively intact and impaired cohorts has previously been assessed, with little focus on gender variability. OBJECTIVE The present study explored the interaction between gender and plasma vitamin C on cognitive performance, and the effect of different amounts of plasma vitamin C (adequate/inadequate) on various cognitive tasks by gender. METHODS This retrospective analysis was conducted in healthy adults (n = 80, female = 52, male = 28, 24-96 y) with a range of blood plasma vitamin C concentrations. Cognitive assessments included the Swinburne University Computerized Cognitive Assessment Battery (SUCCAB) and 2 pen-and-paper tests, the Symbol Digits Modalities Test (SDMT) and the Hopkins Verbal Learning Test-Revised (HVLT-R). Food-frequency questionnaires were used to elucidate dietary consumption. RESULTS After adjusting for a number of potential covariates such as age, number of prescribed medications and dose of vitamin C supplementation, results indicated a significant interaction (P < 0.001) between plasma vitamin C and gender on cognitive function, on both the computerized and pen-and-paper assessments. A novel finding was that the performance of males with inadequate plasma vitamin C was poorer on tasks involving components of memory (short/delayed), inhibition, and visual perception, whereas females presenting with inadequate vitamin C were more compromised on tasks involving psychomotor performance/motor speed. Additionally, females with adequate vitamin C concentrations exhibited higher performance than males on tasks involving recall, recognition, attention, and focus. CONCLUSIONS Further larger-scale investigations are required to establish a cause-and-effect relation and to elucidate whether differences in cognitive function between genders may be attributed to plasma vitamin C status.This trial was registered at https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=369440&isReview=true as ACTRN12615001140549.
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Affiliation(s)
- Nikolaj Travica
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
- The National Institute of Integrative Medicine, Melbourne, Australia
| | - Karin Ried
- The National Institute of Integrative Medicine, Melbourne, Australia
- Discipline of General Practice, University of Adelaide, South Australia, Australia
- Torrens University, Melbourne, Australia
| | - Irene Hudson
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
- School of Science, College of Science, Engineering, and Health, Mathematical Sciences, Royal Melbourne Institute of Technology, Melbourne, Australia
- School of Mathematical and Physical Science, University of Newcastle, Newcastle, Australia
| | - Avni Sali
- The National Institute of Integrative Medicine, Melbourne, Australia
| | - Andrew Scholey
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
| | - Andrew Pipingas
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
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Zhang Y, Liang M, Sun C, Song EJ, Cheng C, Shi T, Min M, Sun Y. Proton pump inhibitors use and dementia risk: a meta-analysis of cohort studies. Eur J Clin Pharmacol 2019; 76:139-147. [PMID: 31748819 DOI: 10.1007/s00228-019-02753-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/01/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE The aim of this study was to explore the relationship between proton pump inhibitors use and the risk of dementia. METHODS A comprehensive literature search was conducted in English and Chinese databases from origination to December 2018. The pooled hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated with a random-effects model. Subgroup analyses and sensitivity analyses were also conducted. Cochran's Q test and the I2 statistic were used to evaluate the heterogeneity. Publication bias was assessed by Begg's test and Egger's test. RESULTS Six studies were included, which contained a total of 166,146 participants. The overall result demonstrated a significant increase in dementia risk with proton pump inhibitors use (HR = 1.29, 95% CI = 1.12-1.49). In subgroup analyses, a significant association was detected between proton pump inhibitors use and the risk of dementia in Europe (HR = 1.46, 95% CI = 1.23-1.73) and among participants aged ≥ 65 years (HR = 1.39, 95% CI = 1.17-1.65). For the factor follow-up time ≥ 5 years, the pooled HR was 1.28 (95% CI = 1.12-1.46), demonstrating a 1.28-fold increase in the risk of dementia among proton pump inhibitors users. In the case of regional impact, participants from Europe showed an overall pooled HR estimate of 1.46 (95% CI = 1.23-1.73). There was no evidence of publication bias. CONCLUSIONS The overall result of this meta-analysis supports the hypothesis that proton pump inhibitors increase the risk of dementia. Furthermore, high-quality cohort studies are needed to confirm these findings.
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Affiliation(s)
- Yun Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Mingming Liang
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Chenyu Sun
- AMITA Health Saint Joseph Hospital Chicago, 2900 N. Lake Shore Drive, Chicago, 60657, Illinois, USA
| | - Evelyn J Song
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Ce Cheng
- Cape Fear Valley Medical Center, 1638 Owen Dr, Fayetteville, 28304, North Carolina, USA
| | - Tingting Shi
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Min Min
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yehuan Sun
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China.
- Center for Evidence-Based Practice, Anhui Medical University, Hefei, 230032, Anhui, China.
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Obeid R, Heil SG, Verhoeven MMA, van den Heuvel EGHM, de Groot LCPGM, Eussen SJPM. Vitamin B12 Intake From Animal Foods, Biomarkers, and Health Aspects. Front Nutr 2019; 6:93. [PMID: 31316992 PMCID: PMC6611390 DOI: 10.3389/fnut.2019.00093] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/30/2019] [Indexed: 12/16/2022] Open
Abstract
The EAT-Lancet commission recently suggested that transformation to healthy diets by 2050 will require a reduction of at least 50% in consumption of foods such as red meat and sugar, and a doubling in the global consumption of fruits, vegetables, nuts, and legumes. A diet rich in plant-based foods and with fewer animal source foods confers both improved health and environmental benefits. Notably, the risk of vitamin B12 deficiency increases when consuming a diet low in animal products. Humans are dependent on animal foods such as dairy products, meat, fish and eggs. Vitamin B12 deficiency is common worldwide, especially in populations with low consumption of animal foods because of low socioeconomic status, ethical reasons, or because of their lifestyle (i.e., vegans). According to the European Food Safety Authoroty, the recommended adequate intake of vitamin B12 is 4.0 μg/d for adults, and vitamin B12 requirements are higher during pregnancy and lactation. Infants and children from deficient mothers and elderly people are at risk for vitamin B12 deficiency. Diagnosis of vitamin B12 deficiency is hampered by low specificity of available biomarkers, and there is no consensus yet regarding the optimal definition of low vitamin B12 status. In general, a combination of at least two biomarkers is recommended. Therefore, this review presents an overview of vitamin B12 biochemistry and its biomarkers. We further summarize current recommendations of vitamin B12 intake, and evidence on the associations of vitamin B12 intake from different nutrient-dense animal foods with vitamin B12 status markers. Finally, potential consequences of low vitamin B12 status on different health outcomes for pregnant women, infants and elderly are presented.
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Affiliation(s)
- Rima Obeid
- Department of Clinical Chemistry and Laboratory Medicine, Saarland University Hospital, Homburg, Germany
| | - Sandra G Heil
- Department of Clinical Chemistry, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Maxime M A Verhoeven
- Department of Rheumatology and Clinical Immunology, UMC Utrecht, Utrecht, Netherlands
| | | | | | - Simone J P M Eussen
- Department of Epidemiology, CARIM School for Cardiovascular Diseases Maastricht University, Maastricht, Netherlands
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Huang J, Nguyen M, Liu Y, Robert A, Meunier B. The TDMQ Regulators of Copper Homeostasis Do Not Disturb the Activities of Cu,Zn-SOD, Tyrosinase, or the CoIII
Cofactor Vitamin B12. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ju Huang
- School of Chemical Engineering and Light Industry; Higher Education Mega Center; Guangdong University of Technology (GDUT); 100 Waihuan Xi road 510006 Guangzhou Panyu District P. R. China
- Higher Education Mega Center; Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
| | - Michel Nguyen
- Higher Education Mega Center; Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
- Higher Education Mega Center; Université de Toulouse; 31077 France
| | - Yan Liu
- School of Chemical Engineering and Light Industry; Higher Education Mega Center; Guangdong University of Technology (GDUT); 100 Waihuan Xi road 510006 Guangzhou Panyu District P. R. China
| | - Anne Robert
- Higher Education Mega Center; Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
- Higher Education Mega Center; Université de Toulouse; 31077 France
| | - Bernard Meunier
- School of Chemical Engineering and Light Industry; Higher Education Mega Center; Guangdong University of Technology (GDUT); 100 Waihuan Xi road 510006 Guangzhou Panyu District P. R. China
- Higher Education Mega Center; Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
- Higher Education Mega Center; Université de Toulouse; 31077 France
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Kaur D, Rasane P, Singh J, Kaur S, Kumar V, Mahato DK, Dey A, Dhawan K, Kumar S. Nutritional Interventions for Elderly and Considerations for the Development of Geriatric Foods. Curr Aging Sci 2019; 12:15-27. [PMID: 31109282 PMCID: PMC6971894 DOI: 10.2174/1874609812666190521110548] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/22/2022]
Abstract
The process of aging is characterized by numerous changes in the body which has an overall negative effect on the health and lifestyle of elderly. Nutrition deserves special attention as an individual reaches old age. It plays a vital role in affecting the quality of life, including physical, mental and social health. The physiological decline in food intake is very common among older age and this result in nutritional deficiencies. These increased nutritional deficiencies are the major risk factors for certain chronic diseases and deteriorated age related health. Thus, the adoption of nutritional intervention can be a measure to tackle the current situation of nutritional deficiencies and promote a healthy lifestyle.
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Affiliation(s)
| | - Prasad Rasane
- Address correspondence to this author at the Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara 144411, India; Tel: +919889532584; E-mail:
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Allen LH, Miller JW, de Groot L, Rosenberg IH, Smith AD, Refsum H, Raiten DJ. Biomarkers of Nutrition for Development (BOND): Vitamin B-12 Review. J Nutr 2018; 148:1995S-2027S. [PMID: 30500928 PMCID: PMC6297555 DOI: 10.1093/jn/nxy201] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/06/2017] [Accepted: 08/02/2018] [Indexed: 12/31/2022] Open
Abstract
This report on vitamin B-12 (B12) is part of the Biomarkers of Nutrition for Development (BOND) Project, which provides state-of-the art information and advice on the selection, use, and interpretation of biomarkers of nutrient exposure, status, and function. As with the other 5 reports in this series, which focused on iodine, folate, zinc, iron, and vitamin A, this B12 report was developed with the assistance of an expert panel (BOND B12 EP) and other experts who provided information during a consultation. The experts reviewed the existing literature in depth in order to consolidate existing relevant information on the biology of B12, including known and possible effects of insufficiency, and available and potential biomarkers of status. Unlike the situation for the other 5 nutrients reviewed during the BOND project, there has been relatively little previous attention paid to B12 status and its biomarkers, so this report is a landmark in terms of the consolidation and interpretation of the available information on B12 nutrition. Historically, most focus has been on diagnosis and treatment of clinical symptoms of B12 deficiency, which result primarily from pernicious anemia or strict vegetarianism. More recently, we have become aware of the high prevalence of B12 insufficiency in populations consuming low amounts of animal-source foods, which can be detected with ≥1 serum biomarker but presents the new challenge of identifying functional consequences that may require public health interventions.
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Affiliation(s)
- Lindsay H Allen
- USDA, Agricultural Research Service Western Human Nutrition Research Center, University of California, Davis, CA
| | - Joshua W Miller
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ
| | - Lisette de Groot
- Division of Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Irwin H Rosenberg
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
| | - A David Smith
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Helga Refsum
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Daniel J Raiten
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), NIH, Bethesda, MD
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Pölönen S, Tiihonen M, Nykänen I, Taipale H, Tolppanen AM, Hartikainen S. Incidence of prescription vitamin B12 use in relation to diagnosis of Alzheimer’s disease among community-dwelling persons. J Public Health (Oxf) 2018. [DOI: 10.1007/s10389-018-0996-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Kozyraki R, Cases O. Cubilin, the Intrinsic Factor-Vitamin B12 Receptor in Development and Disease. Curr Med Chem 2018; 27:3123-3150. [PMID: 30295181 DOI: 10.2174/0929867325666181008143945] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 08/11/2018] [Accepted: 08/21/2018] [Indexed: 12/29/2022]
Abstract
Gp280/Intrinsic factor-vitamin B12 receptor/Cubilin (CUBN) is a large endocytic receptor serving multiple functions in vitamin B12 homeostasis, renal reabsorption of protein or toxic substances including albumin, vitamin D-binding protein or cadmium. Cubilin is a peripheral membrane protein consisting of 8 Epidermal Growth Factor (EGF)-like repeats and 27 CUB (defined as Complement C1r/C1s, Uegf, BMP1) domains. This structurally unique protein interacts with at least two molecular partners, Amnionless (AMN) and Lrp2/Megalin. AMN is involved in appropriate plasma membrane transport of Cubilin whereas Lrp2 is essential for efficient internalization of Cubilin and its ligands. Observations gleaned from animal models with Cubn deficiency or human diseases demonstrate the importance of this protein. In this review addressed to basic research and medical scientists, we summarize currently available data on Cubilin and its implication in renal and intestinal biology. We also discuss the role of Cubilin as a modulator of Fgf8 signaling during embryonic development and propose that the Cubilin-Fgf8 interaction may be relevant in human pathology, including in cancer progression, heart or neural tube defects. We finally provide experimental elements suggesting that some aspects of Cubilin physiology might be relevant in drug design.
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Affiliation(s)
- Renata Kozyraki
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Paris-Diderot University, Paris, France
| | - Olivier Cases
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Paris-Diderot University, Paris, France
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Jeelani R, Maitra D, Chatzicharalampous C, Najeemuddin S, Morris RT, Abu-Soud HM. Melatonin prevents hypochlorous acid-mediated cyanocobalamin destruction and cyanogen chloride generation. J Pineal Res 2018; 64:10.1111/jpi.12463. [PMID: 29247550 PMCID: PMC5843513 DOI: 10.1111/jpi.12463] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/05/2017] [Indexed: 12/15/2022]
Abstract
Hypochlorous acid (HOCl) is a potent cytotoxic oxidant generated by the enzyme myeloperoxidase (MPO) in the presence of hydrogen peroxide (H2 O2 ) and chloride (Cl- ). Elevated levels of HOCl play an important role in various pathological conditions through oxidative modification of several biomolecules. Recently, we have highlighted the ability of HOCl to mediate the destruction of the metal-ion derivatives of tetrapyrrole macrocyclic rings such as hemoproteins and vitamin B12 (VB12 ) derivatives. Destruction of cyanocobalamin, a common pharmacological form of VB12 mediated by HOCl, results in the generation of toxic molecular products such as chlorinated derivatives, corrin ring cleavage products, the toxic blood agents cyanide (CN- ) and cyanogen chloride (CNCl), and redox-active free cobalt. Here, we show that melatonin prevents HOCl-mediated cyanocobalamin destruction, using a combination of UV-Vis spectrophotometry, high-performance liquid chromatography analysis, and colorimetric CNCl assay. Identification of several melatonin oxidation products suggests that the protective role of melatonin against HOCl-mediated cyanocobalamin destruction and subsequent CNCl generation is at the expense of melatonin oxidation. Collectively, this work highlights that, in addition to acting as an antioxidant and as a MPO inhibitor, melatonin can also prevent VB12 deficiency in inflammatory conditions such as cardiovascular and neurodegenerative diseases, among many others.
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Affiliation(s)
- Roohi Jeelani
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, C. S. Mott Center for Human Growth and Development, 275 E. Hancock, Detroit, MI, 48201 USA
| | - Dhiman Maitra
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, C. S. Mott Center for Human Growth and Development, 275 E. Hancock, Detroit, MI, 48201 USA
| | - Charalampos Chatzicharalampous
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, C. S. Mott Center for Human Growth and Development, 275 E. Hancock, Detroit, MI, 48201 USA
| | - Syed Najeemuddin
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, C. S. Mott Center for Human Growth and Development, 275 E. Hancock, Detroit, MI, 48201 USA
| | - Robert T. Morris
- Division of Gynecologic Oncology, Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI, 48201 USA
| | - Husam M. Abu-Soud
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, C. S. Mott Center for Human Growth and Development, 275 E. Hancock, Detroit, MI, 48201 USA
- Department of Microbiology, Immunology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, 48201 USA
- Address correspondence to: Husam Abu-Soud, Department of Obstetrics and Gynecology, C. S. Mott Center for Growth and Development, Wayne State University, 275 E. Hancock Detroit, MI 48201. Tel: 313/577-6178; Fax: 313/577-8554;
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31
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Mohapatra RN, Pradhan SR, Kumari P. Uncommon manifestations of Vitamin B 12 deficiency. Indian J Psychiatry 2018; 60:255-257. [PMID: 30166687 PMCID: PMC6102966 DOI: 10.4103/psychiatry.indianjpsychiatry_164_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Rabindra N Mohapatra
- Department of Neurosurgery, Ispat General Hospital, Rourkela, Odisha, India. E-mail:
| | - Sudhi R Pradhan
- Department of Radiology, Ispat General Hospital, Rourkela, Odisha, India
| | - Pushpa Kumari
- Department of Ophthalmology, Ispat General Hospital, Rourkela, Odisha, India
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Abstract
The biosynthesis of B12, involving up to 30 different enzyme-mediated steps, only occurs in bacteria. Thus, most eukaryotes require an external source of B12, and yet the vitamin appears to have only two functions in eukaryotes: as a cofactor for the enzymes methionine synthase and methylmalonylCoA mutase. These two functions are crucial for normal health in humans, and in particular, the formation of methionine is essential for providing methyl groups for over 100 methylation processes. Interference with the methionine synthase reaction not only depletes the body of methyl groups but also leads to the accumulation of homocysteine, a risk factor for many diseases. The syndrome pernicious anemia, characterized by lack of intrinsic factor, leads to a severe, sometimes fatal form of B12 deficiency. However, there is no sharp cutoff for B12 deficiency; rather, there is a continuous inverse relationship between serum B12 and a variety of undesirable outcomes, including neural tube defects, stroke, and dementia. The brain is particularly vulnerable; in children, inadequate B12 stunts brain and intellectual development. Suboptimal B12 status (serum B12<300pmol/L) is very common, occurring in 30%-60% of the population, in particular in pregnant women and in less-developed countries. Thus, many tens of millions of people in the world may suffer harm from having a poor B12 status. Public health steps are urgently needed to correct this inadequacy.
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Affiliation(s)
- A David Smith
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom.
| | - Martin J Warren
- School of Biosciences, University of Kent, Canterbury, Kent, United Kingdom
| | - Helga Refsum
- Department of Nutrition, University of Oslo, Oslo, Norway
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Green R, Allen LH, Bjørke-Monsen AL, Brito A, Guéant JL, Miller JW, Molloy AM, Nexo E, Stabler S, Toh BH, Ueland PM, Yajnik C. Vitamin B 12 deficiency. Nat Rev Dis Primers 2017; 3:17040. [PMID: 28660890 DOI: 10.1038/nrdp.2017.40] [Citation(s) in RCA: 457] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Vitamin B12 (B12; also known as cobalamin) is a B vitamin that has an important role in cellular metabolism, especially in DNA synthesis, methylation and mitochondrial metabolism. Clinical B12 deficiency with classic haematological and neurological manifestations is relatively uncommon. However, subclinical deficiency affects between 2.5% and 26% of the general population depending on the definition used, although the clinical relevance is unclear. B12 deficiency can affect individuals at all ages, but most particularly elderly individuals. Infants, children, adolescents and women of reproductive age are also at high risk of deficiency in populations where dietary intake of B12-containing animal-derived foods is restricted. Deficiency is caused by either inadequate intake, inadequate bioavailability or malabsorption. Disruption of B12 transport in the blood, or impaired cellular uptake or metabolism causes an intracellular deficiency. Diagnostic biomarkers for B12 status include decreased levels of circulating total B12 and transcobalamin-bound B12, and abnormally increased levels of homocysteine and methylmalonic acid. However, the exact cut-offs to classify clinical and subclinical deficiency remain debated. Management depends on B12 supplementation, either via high-dose oral routes or via parenteral administration. This Primer describes the current knowledge surrounding B12 deficiency, and highlights improvements in diagnostic methods as well as shifting concepts about the prevalence, causes and manifestations of B12 deficiency.
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Affiliation(s)
- Ralph Green
- Department of Pathology and Laboratory Medicine, University of California Davis, 4400 V Street, PATH Building, Davis, California 95817, USA
| | - Lindsay H Allen
- USDA, ARS Western Human Nutrition Research Center, University of California Davis, Davis, California, USA
| | | | - Alex Brito
- USDA, ARS Western Human Nutrition Research Center, University of California Davis, Davis, California, USA
| | - Jean-Louis Guéant
- Inserm UMRS 954 N-GERE (Nutrition Génétique et Exposition aux Risques Environnementaux), University of Lorraine and INSERM, Nancy, France
| | - Joshua W Miller
- School of Environmental and Biological Sciences, Rutgers University, New Brunswick, New Jersey, USA
| | - Anne M Molloy
- School of Medicine and School of Biochemistry and Immunology, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Ebba Nexo
- Department of Clinical Medicine, Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Sally Stabler
- Department of Medicine, University of Colorado Denver, Denver, Colorado, USA
| | - Ban-Hock Toh
- Centre for Inflammatory Diseases, Monash Institute of Medical Research, Clayton, Victoria, Australia
| | - Per Magne Ueland
- Laboratory of Clinical Biochemistry, Haukeland University Hospital, Bergen, Norway.,Section for Pharmacology, Department of Clinical Science, University of Bergen, Bergen, Norway
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van der Zwaluw NL, Brouwer-Brolsma EM, van de Rest O, van Wijngaarden JP, In 't Veld PH, Kourie DI, Swart KMA, Enneman AW, van Dijk SC, van der Velde N, Kessels RPC, Smeets PAM, Kok FJ, Dhonukshe-Rutten RAM, de Groot LCPGM. Folate and Vitamin B 12-Related Biomarkers in Relation to Brain Volumes. Nutrients 2016; 9:nu9010008. [PMID: 28029114 PMCID: PMC5295052 DOI: 10.3390/nu9010008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/26/2016] [Accepted: 12/14/2016] [Indexed: 12/19/2022] Open
Abstract
AIM We investigated cross-sectional associations between circulating homocysteine, folate, biomarkers of vitamin B12 status and brain volumes. We furthermore compared brain volumes of participants who received daily folic acid and vitamin B12 supplementation with participants who did not. METHODS Participants of the B-PROOF study (n = 2919) were assigned to 400 µg folic acid and 500 µg vitamin B12, or a placebo. After two years of intervention, T₁-weighted magnetic resonance imaging (MRI) scans were made in a random subsample (n = 218) to obtain grey and white matter volume, and total brain volume (TBV). Plasma homocysteine, serum folate, vitamin B12, holotranscobalamin, and methylmalonic acid concentrations were measured. RESULTS Multiple linear regression analyses showed inverse associations between plasma homocysteine with TBV (β = -0.91, 95% CI -1.85-0.03; p = 0.06) and between serum folate and TBV (β = -0.20, 95% CI -0.38, -0.02; p = 0.03). No significant associations were observed for serum vitamin B12 and holotranscobalamin. Fully adjusted ANCOVA models showed that the group that received B-vitamins had a lower TBV (adjusted mean 1064, 95% CI 1058-1069 mL) than the non-supplemented group (1072, 95% CI 1067-1078 mL, p = 0.03). CONCLUSIONS Results were contradictory, with higher Hcy levels associated with lower TBV, but also with higher folate levels associated with lower TBV. In addition, the lack of a baseline measurement withholds us from giving recommendations on whether folic acid and vitamin B12 supplementation will be beneficial above and beyond normal dietary intake for brain health.
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Affiliation(s)
- Nikita L van der Zwaluw
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | - Elske M Brouwer-Brolsma
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | - Ondine van de Rest
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | | | - Paulette H In 't Veld
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | - Daniella I Kourie
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | - Karin M A Swart
- Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands.
| | - Anke W Enneman
- Division of Internal Medicine, Erasmus University Medical Centre, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
| | - Suzanne C van Dijk
- Division of Internal Medicine, Erasmus University Medical Centre, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
| | - Nathalie van der Velde
- Division of Internal Medicine, Erasmus University Medical Centre, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
- Department of Internal Medicine, Section Geriatric Medicine, Academic Medical Centre, Postbus 22660, 1100 DD Amsterdam, The Netherlands.
| | - Roy P C Kessels
- Department of Medical Psychology, Radboud University Medical Centre, Postbus 9101, 6500 HB Nijmegen, The Netherlands.
- Radboud Alzheimer Centre, Radboud University Medical Centre, Postbus 9101, 6500 HB Nijmegen, The Netherlands.
- Donders Institute for Brain, Cognition and Behavior, Radboud University, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
| | - Paul A M Smeets
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
- Image Sciences Institute, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands.
| | - Frans J Kok
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
| | | | - Lisette C P G M de Groot
- Division of Human Nutrition, Wageningen University, Box 8129, 6700 EV Wageningen, The Netherlands.
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Sawaengsri H, Bergethon PR, Qiu WQ, Scott TM, Jacques PF, Selhub J, Paul L. Transcobalamin 776C→G polymorphism is associated with peripheral neuropathy in elderly individuals with high folate intake. Am J Clin Nutr 2016; 104:1665-1670. [PMID: 27733392 PMCID: PMC5118734 DOI: 10.3945/ajcn.116.139030] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 09/08/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The 776C→G polymorphism of the vitamin B-12 transport protein transcobalamin gene (TCN2) (rs1801198; Pro259Arg) is associated with a lower holotranscobalamin concentration in plasma. This effect may reduce the availability of vitamin B-12 to tissues even when vitamin B-12 intake is adequate. Clinical outcomes associated with vitamin B-12 insufficiency could potentially be worsened by high folate intake. OBJECTIVE We determined the association of the TCN2 776C→G polymorphism and folate intake with peripheral neuropathy in elders with normal plasma concentrations of vitamin B-12. DESIGN Participants in this cross-sectional study (n = 171) were from a cohort of community-based, home-bound elderly individuals aged ≥60 y who underwent an evaluation by physicians including an assessment for peripheral neuropathy. Participants were administered food-frequency and general health status questionnaires, anthropometric measurements were taken, and a fasting blood sample from each subject was collected. RESULTS Odds of neuropathy were 3-fold higher for GG genotypes than for CC genotypes (OR: 3.33; 95% CI: 1.15, 9.64). When folate intake was >2 times the Recommended Dietary Allowance (800 μg), GG genotypes had 6.9-fold higher odds of neuropathy than CC genotypes (OR: 6.9; 95% CI: 1.31, 36.36). There was no difference between the genotypes in the odds of peripheral neuropathy when folate intake was ≤800 μg (OR: 1.5; 95% CI: 0.18, 12.33). CONCLUSION The TCN2 776C→G polymorphism is associated with increased odds of peripheral neuropathy in the elderly, even with a normal vitamin B-12 status, especially if their folate intake is >2 times the Recommended Dietary Allowance.
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Affiliation(s)
- Hathairat Sawaengsri
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
| | - Peter R Bergethon
- Neuroscience and Pain Research Unit, Pfizer Inc., Cambridge, MA; and
| | - Wei Qiao Qiu
- Boston University School of Medicine, Boston, MA
| | - Tammy M Scott
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
| | - Paul F Jacques
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
| | - Jacob Selhub
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
| | - Ligi Paul
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA;
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Köbe T, Witte AV, Schnelle A, Grittner U, Tesky VA, Pantel J, Schuchardt JP, Hahn A, Bohlken J, Rujescu D, Flöel A. Vitamin B-12 concentration, memory performance, and hippocampal structure in patients with mild cognitive impairment. Am J Clin Nutr 2016; 103:1045-54. [PMID: 26912492 DOI: 10.3945/ajcn.115.116970] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 01/11/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Low-normal concentrations of vitamin B-12 (VitB12) may be associated with worse cognition. However, previous evidence has been mixed, and the underlying mechanisms remain unclear. OBJECTIVE We determined whether serum VitB12 concentrations within the normal range were linked to memory functions and related neuronal structures in patients with mild cognitive impairment (MCI). DESIGN In a cross-sectional design, we assessed 100 amnestic MCI patients (52 women; age range: 50-80 y) with low- and high-normal VitB12 concentration (median split: 304 pmol/L) for memory functions with the use of the Auditory Verbal Learning Test. MRI was performed at 3 tesla (n= 86) for the estimation of the volume and microstructure of the hippocampus and its subfields as indicated by the mean diffusivity on diffusion-weighted images. With the use of a mediation analysis, we examined whether the relation between VitB12 and memory performance was partially explained by volume or microstructure. RESULTS MCI patients with low-normal VitB12 showed a significantly poorer learning ability (P= 0.014) and recognition performance (P= 0.008) than did patients with high-normal VitB12. Also, the microstructure integrity of the hippocampus was lower in patients with low-normal VitB12, mainly in the cornu ammonis 4 and dentate gyrus region (P= 0.029), which partially mediated the effect of VitB12 on memory performance (32-48%). Adjustments for age, sex, education, apolipoprotein E e4 status, and total homocysteine, folate, and creatinine did not attenuate the effects. CONCLUSIONS Low VitB12 concentrations within the normal range are associated with poorer memory performance, which is an effect that is partially mediated by the reduced microstructural integrity of the hippocampus. Future interventional trials are needed to assess whether supplementation of VitB12 may improve cognition in MCI patients even in the absence of clinically manifested VitB12 deficiency. This trial was registered at clinicaltrials.gov as NCT01219244.
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Affiliation(s)
- Theresa Köbe
- Department of Neurology, NeuroCure Cluster of Excellence
| | - A Veronica Witte
- Department of Neurology, NeuroCure Cluster of Excellence, Department of Neurology, Max Planck Institute of Human Cognitive and Brain Sciences, Leipzig, Germany; Sonderforschungsbereich 1052 Obesity Mechanism Subproject A1, University of Leipzig, Leipzig, Germany
| | | | | | - Valentina A Tesky
- Institute of General Practice, Goethe-University, Frankfurt am Main, Germany
| | - Johannes Pantel
- Institute of General Practice, Goethe-University, Frankfurt am Main, Germany
| | - Jan Philipp Schuchardt
- Department of Nutrition Physiology and Human Nutrition, Gottfried Wilhelm Leibniz University; Hannover, Germany
| | - Andreas Hahn
- Department of Nutrition Physiology and Human Nutrition, Gottfried Wilhelm Leibniz University; Hannover, Germany
| | - Jens Bohlken
- Practice Bohlken for Neurology and Psychiatry, Berlin, Germany; and
| | - Dan Rujescu
- Department of Psychiatry, Psychotherapy and Psychosomatic, University Medicine, Halle/Saale, Germany
| | - Agnes Flöel
- Department of Neurology, NeuroCure Cluster of Excellence, Center for Stroke Research Berlin, Charité - University Medicine Berlin, Berlin, Germany;
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Smith AD. Hippocampus as a mediator of the role of vitamin B-12 in memory. Am J Clin Nutr 2016; 103:959-60. [PMID: 26984484 DOI: 10.3945/ajcn.116.132266] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A David Smith
- Oxford Project to Investigate Memory and Ageing (OPTIMA), Department of Pharmacology, Oxford, United Kingdom
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Metabolic vitamin B12 deficiency: a missed opportunity to prevent dementia and stroke. Nutr Res 2016; 36:109-16. [DOI: 10.1016/j.nutres.2015.10.003] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/16/2015] [Accepted: 10/19/2015] [Indexed: 12/17/2022]
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Affiliation(s)
- Serdar Tasdemir
- Department of Neurology, Beytepe Military Hospital, Ankara, Turkey
| | - Umit Hidir Ulas
- Department of Neurology, Gulhane Military Medical Academy, Ankara, Turkey
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Akter S, Hassan MR, Shahriar M, Akter N, Abbas MG, Bhuiyan MA. Cognitive impact after short-term exposure to different proton pump inhibitors: assessment using CANTAB software. ALZHEIMERS RESEARCH & THERAPY 2015; 7:79. [PMID: 26714488 PMCID: PMC4696341 DOI: 10.1186/s13195-015-0164-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 11/16/2015] [Indexed: 12/29/2022]
Abstract
Introduction Studies have shown that proton pump inhibitors (PPIs) increase the brain burden of amyloid-beta (Aβ) and also create vitamin B12 deficiency. However, these two phenomena have deleterious effect on cognition and Alzheimer’s disease (AD). Since the use of PPIs has increased tremendously for the last few years, it is of great public health importance to investigate the cognitive impact of PPIs. Hence, the purpose of this study was to investigate the degree of neuropsychological association of each PPI with different cognitive functions. Methods Sixty volunteers of either gender were recruited and divided randomly into six groups: five test groups for five classes of PPIs and one control group. All the groups participated in the five computerized neuropsychological tests (nine subtests) of the Cambridge Neuropsychological Test Automated Battery twice: at the beginning of the study and 7 days thereafter. Results We found statistically and clinically significant impairment in visual memory, attention, executive function, and working and planning function. One-way analysis of variance findings showed that all PPIs had a similar negative impact on cognition. However, paired-samples t tests indicated that omeprazole showed significant (p < 0.05) results in seven subtests; lansoprazole and pantoprazole showed significant results in five subtests; and rabeprazole showed significant results in four subtests. Among five classes of PPIs, esomeprazole showed comparatively less impact on cognitive function with significant results in three subtests. Conclusions The present study reveals for the first time that different PPIs have varying degrees of influence on different cognitive domains and have associations with AD. These findings should be considered when balancing the risks and benefits of prescribing these medications. A study done for a longer period of time with a larger sample size might yield better results.
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Affiliation(s)
- Sanjida Akter
- Department of Pharmacy, School of Medicine, University of Asia Pacific, House no. 73, Road no. 5A, Dhanmondi, Dhaka, 1209, Bangladesh.
| | - Md Rajib Hassan
- Department of Pharmacy, School of Medicine, University of Asia Pacific, House no. 73, Road no. 5A, Dhanmondi, Dhaka, 1209, Bangladesh.
| | - Mohammad Shahriar
- Department of Pharmacy, School of Medicine, University of Asia Pacific, House no. 73, Road no. 5A, Dhanmondi, Dhaka, 1209, Bangladesh.
| | - Nahia Akter
- Department of Pharmacy, School of Medicine, University of Asia Pacific, House no. 73, Road no. 5A, Dhanmondi, Dhaka, 1209, Bangladesh.
| | - Md Golam Abbas
- Department of Molecular Neuroscience and Integrative Physiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan.
| | - Mohiuddin Ahmed Bhuiyan
- Department of Pharmacy, School of Medicine, University of Asia Pacific, House no. 73, Road no. 5A, Dhanmondi, Dhaka, 1209, Bangladesh.
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Hsu YH, Huang CF, Lo CP, Wang TL, Tu MC. Vitamin B12 deficiency: Characterization of psychometrics and MRI morphometrics. Nutr Neurosci 2015; 19:47-54. [DOI: 10.1179/1476830515y.0000000045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Abstract
B12 -antimetabolites are compounds that counteract the physiological effects of vitamin B12 and related natural cobalamins. Presented here is a structure- and reactivity-based concept of the specific 'antivitamins B12 ': it refers to analogues of vitamin B12 that display high structural similarity to the vitamin and are 'locked chemically' to prevent their metabolic conversion into the crucial organometallic B12 -cofactors. Application of antivitamins B12 to healthy laboratory animals is, thus, expected to induce symptoms of B12 -deficiency. Antivitamins B12 may, hence, be helpful in elucidating still largely puzzling pathophysiological phenomena associated with B12 -deficiency, and also in recognizing physiological roles of B12 that probably still remain to be discovered.
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Affiliation(s)
- Bernhard Kräutler
- Institute of Organic Chemistry & Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80/82, 6020 Innsbruck (Austria).
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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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Ogawa S. Nutritional management of older adults with cognitive decline and dementia. Geriatr Gerontol Int 2014; 14 Suppl 2:17-22. [PMID: 24650061 DOI: 10.1111/ggi.12252] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2013] [Indexed: 11/28/2022]
Abstract
Age-related cognitive decline is a main predictor of disability among elderly people, and with the continued expansion of the aging population and the increase in life expectancy, the prevalence of mild cognitive impairment and dementia represented by Alzheimer's disease (AD), which is a multifactorial neurodegenerative disorder of older adults, have increased. Recent epidemiological and observational studies suggest a relationship exists between lifestyle factors, including nutrition and diet, and cognitive function in aging adults. It is also suggested that malnutrition and nutrient deficiencies are associated with cognitive decline in patients with dementia. There are a variety of nutritional factors, including nutritional status and dietary patterns, that might be associated with cognitive function, and specific micronutrients and dietary components have been suggested to have an association with cognitive function as well. Based on these findings and evidence, evaluation of nutritional state, as well as nutritional intervention, might be able to play a role in the management and prevention of dementia.
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Affiliation(s)
- Sumito Ogawa
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Rietsema WJ. Unexpected recovery of moderate cognitive impairment on treatment with oral methylcobalamin. J Am Geriatr Soc 2014; 62:1611-2. [PMID: 25116994 DOI: 10.1111/jgs.12966] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Valentini L, Pinto A, Bourdel-Marchasson I, Ostan R, Brigidi P, Turroni S, Hrelia S, Hrelia P, Bereswill S, Fischer A, Leoncini E, Malaguti M, Blanc-Bisson C, Durrieu J, Spazzafumo L, Buccolini F, Pryen F, Donini LM, Franceschi C, Lochs H. Impact of personalized diet and probiotic supplementation on inflammation, nutritional parameters and intestinal microbiota - The "RISTOMED project": Randomized controlled trial in healthy older people. Clin Nutr 2014; 34:593-602. [PMID: 25453395 DOI: 10.1016/j.clnu.2014.09.023] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 07/23/2014] [Accepted: 09/29/2014] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To assess the impact of a personalized diet, with or without addition of VSL#3 preparation, on biomarkers of inflammation, nutrition, oxidative stress and intestinal microbiota in 62 healthy persons aged 65-85 years. DESIGN Open label, randomized, multicenter study. PRIMARY ENDPOINT High-sensitivity C-reactive protein. SETTING Community. INTERVENTIONS Eight week web-based dietary advice (RISTOMED platform) alone or with supplementation of VSL#3 (2 capsules per day). The RISTOMED diet was optimized to reduce inflammation and oxidative stress. MEASUREMENTS Blood and stool samples were collected on days 1 and 56. RESULTS Diet alone reduced ESR (p = 0.02), plasma levels of cholesterol (p < 0.01) and glucose (p = 0.03). Addition of VSL#3 reduced ESR (p = 0.05) and improved folate (p = 0.007), vitamin B12 (p = 0.001) and homocysteine (p < 0.001) plasma levels. Neither intervention demonstrated any further effects on inflammation. Subgroup analysis showed 40 participants without signs of low-grade inflammation (hsCRP<3 mg/l, subgroup 1) and 21 participants with low-grade inflammation at baseline (hsCRP≥3 mg/l, subgroup 2). In subgroup 2 addition of VSL#3 increased bifidobacteria (p = 0.005) in more participants and improved both folate (p = 0.015) and vitamin B12 (p = 0.035) levels compared with subgroup 1. The increases were positively correlated to the change in the bifidobacteria concentration for folate (p = 0.023) and vitamin B12 (p = 0.001). As expected change in homocysteine correlated negatively to change in folate (r = -0.629, p = 0.002) and vitamin B12 (r = -0.482, p = 0.026). CONCLUSIONS Addition of VSL#3 increased bifidobacteria and supported adequate folate and vitamin B12 concentrations in subjects with low-grade inflammation. Decrease in homocysteine with VSL#3 was clinically relevant. suggesting protective potentials for aging-associated conditions, e.g. cardiovascular or neurological diseases. ClinicalTrials.gov: NCT01069445-NCT01179789.
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Affiliation(s)
- Luzia Valentini
- Dept Gastroenterology and Hepatology, Charité-Universitätsmedizin Berlin, CCM, Charitéplatz 1, 10117 Berlin, Germany.
| | - Alessandro Pinto
- Experimental Medicine Department, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Isabelle Bourdel-Marchasson
- CHU Bordeaux, Clinical Gerontology, France; CNRS, RMSB, UMR 5536, France; University Bordeaux, RMSB, UMR 5536, Bordeaux, France
| | - Rita Ostan
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via S. Giacomo 12, 40126 Bologna, Italy
| | - Patrizia Brigidi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Turroni
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvana Hrelia
- Dept Life Quality Studies, Alma Mater Studiorum University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Patrizia Hrelia
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Stefan Bereswill
- Dept Microbiology and Hygiene, Charité-Universitätsmedizin Berlin, CBF, Hindenburgdamm 27, 12203 Berlin, Germany
| | - André Fischer
- Dept Microbiology and Hygiene, Charité-Universitätsmedizin Berlin, CBF, Hindenburgdamm 27, 12203 Berlin, Germany
| | - Emanuela Leoncini
- Dept Life Quality Studies, Alma Mater Studiorum University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Marco Malaguti
- Dept Life Quality Studies, Alma Mater Studiorum University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | | | | | - Liana Spazzafumo
- Biostatistical Center INRCA, Via S. Margherita 5, 60100 Ancona, Italy
| | - Fabio Buccolini
- R&D, VoxNet CEO, Via Giovanni Paisiello 32, 00198 Rome, Italy
| | - Florence Pryen
- Actial Farmaceutica Lda, Praca Severiano Ferraz 258, 09000 082 Funchal, Portugal
| | - Lorenzo Maria Donini
- Experimental Medicine Department, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via S. Giacomo 12, 40126 Bologna, Italy
| | - Herbert Lochs
- Experimental Medicine Department, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; Medical University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
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Abstract
INTRODUCTION Given the high prevalence of dementia and its devastating consequences, identifying risk factors for dementia is a public health priority. The present study aims to assess whether gastritis increases the odds of dementia. METHODOLOGY The data for this study, consisting of 2926 community-dwelling older adults, were obtained from the National survey entitled "Mental Health and Quality of Life of Older Malaysians." Dementia was diagnosed using the Geriatric Mental State-Automated Geriatric Examination for Computer-Assisted Taxonomy. RESULTS Prevalence of dementia was considerably higher among older adults with gastritis (29.5%) compared to those without gastritis (13.2%). After adjusting for age, gender, marital status, educational attainment, hypertension, stroke, and diabetes, gastritis was significantly associated with more than twice odds of dementia (adjusted odds ratio = 2.42, P < .001, 95% confidence interval = 1.68-3.49). CONCLUSIONS The findings from this population-based observational study showing evidence that gastritis may increase the risk of dementia provide avenue for further inquiries into dementia.
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Affiliation(s)
| | - Tengku Aizan Hamid
- Institute of Gerontology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia Department of Human Development and Family Studies, Faculty of Human Ecology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Rahimah Ibrahim
- Institute of Gerontology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia Department of Human Development and Family Studies, Faculty of Human Ecology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Devalia V, Hamilton MS, Molloy AM. Guidelines for the diagnosis and treatment of cobalamin and folate disorders. Br J Haematol 2014; 166:496-513. [PMID: 24942828 DOI: 10.1111/bjh.12959] [Citation(s) in RCA: 232] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The clinical picture is the most important factor in assessing the significance of test results assessing cobalamin status because there is no 'gold standard' test to define deficiency. Serum cobalamin currently remains the first-line test, with additional second-line plasma methylmalonic acid to help clarify uncertainties of underlying biochemical/functional deficiencies. Serum holotranscobalamin has the potential as a first-line test, but an indeterminate 'grey area' may still exist. Plasma homocysteine may be helpful as a second-line test, but is less specific than methylmalonic acid. The availability of these second-line tests is currently limited. Definitive cut-off points to define clinical and subclinical deficiency states are not possible, given the variety of methodologies used and technical issues, and local reference ranges should be established. In the presence of discordance between the test result and strong clinical features of deficiency, treatment should not be delayed to avoid neurological impairment. Treatment of cobalamin deficiency is recommended in line with the British National Formulary. Oral therapy may be suitable and acceptable provided appropriate doses are taken and compliance is not an issue. Serum folate offers equivalent diagnostic capability to red cell folate and is the first-line test of choice to assess folate status.
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Gupta PK, Gupta RK, Garg RK, Rai Y, Roy B, Pandey CM, Malhotra HS, Narayana PA. DTI correlates of cognition in conventional MRI of normal-appearing brain in patients with clinical features of subacute combined degeneration and biochemically proven vitamin B(12) deficiency. AJNR Am J Neuroradiol 2013; 35:872-7. [PMID: 24263693 DOI: 10.3174/ajnr.a3785] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Vitamin B12 deficiency may cause neural injury that results in cognitive deficits. The main purpose of our study was to evaluate morphometric and microstructural changes in the brain and relate them to cognition in subacute combined degeneration of the spinal cord and patients with biochemically deficient vitamin B12. MATERIALS AND METHODS Fifty-one patients were recruited and underwent nerve-conduction velocity tests and routine hematologic examinations. Serum vitamin B12 and homocystine levels were also measured. All patients and 46 age- and sex-matched controls underwent cervical spine and brain MR imaging along with cognition tests. MR imaging included conventional scans and DTI. Voxel-based morphometry was performed for determining the WM and GM volumes, based on T1-weighted images. DTI measures that included fractional anisotropy, ADC, radial diffusivity, and axial diffusivity were determined by using tract-based statistics. RESULTS None of the patients showed any abnormality on conventional MR imaging. No significant changes in GM and WM volumes were observed in patients compared with controls. Significant reductions in the fractional anisotropy and an increase in ADC and radial diffusivity values were observed in multiple brain regions in patients compared with controls. These changes were confirmed on the region-of-interest analysis. Neuropsychological scores were significantly different in patients compared with controls and showed significant correlation with fractional anisotropy and radial diffusivity in a few brain regions. CONCLUSIONS Microstructural changes are seen in WM regions on DTI in patients with vitamin B12 deficiency and correlate with cognition scores. DTI can be used for objective assessment of microstructural changes in the brain in vitamin B12 deficiency.
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Affiliation(s)
- P K Gupta
- From the Department of Neurology (P.K.G., R.K.Garg, H.S.M.), King George's Medical University, Lucknow, Uttar Pradesh, India
| | - R K Gupta
- Department of Radiology and Imaging (R.K.Gupta, B.R.), Fortis Memorial Research Institute, Gurgaon, Haryana, India
| | - R K Garg
- From the Department of Neurology (P.K.G., R.K.Garg, H.S.M.), King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Y Rai
- Department of Radiodiagnosis (Y.R.)
| | - B Roy
- Department of Radiology and Imaging (R.K.Gupta, B.R.), Fortis Memorial Research Institute, Gurgaon, Haryana, India
| | - C M Pandey
- Biostatistics (C.M.P.), Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - H S Malhotra
- From the Department of Neurology (P.K.G., R.K.Garg, H.S.M.), King George's Medical University, Lucknow, Uttar Pradesh, India
| | - P A Narayana
- Department of Diagnostic and Interventional Imaging (P.A.N.), University of Texas Medical School at Houston, Houston, Texas
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Interactions between plasma concentrations of folate and markers of vitamin B(12) status with cognitive performance in elderly people not exposed to folic acid fortification: the Hordaland Health Study. Br J Nutr 2013; 111:1085-95. [PMID: 24229560 DOI: 10.1017/s000711451300336x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A combination of high folate with low vitamin B12 plasma status has been associated with cognitive impairment in a population exposed to mandatory folic acid fortification. The objective of the present study was to examine the interactions between plasma concentrations of folate and vitamin B12 markers in relation to cognitive performance in Norwegian elderly who were unexposed to mandatory or voluntary folic acid fortification. Cognitive performance was assessed by six cognitive tests in 2203 individuals aged 72-74 years. A combined score was calculated using principal component analysis. The associations of folate concentrations, vitamin B12 markers (total vitamin B12, holotranscobalamin (holoTC) and methylmalonic acid (MMA)) and their interactions in relation to cognitive performance were evaluated by quantile regression and least-squares regression, adjusted for sex, education, apo-ɛ4 genotype, history of CVD/hypertension and creatinine. Cross-sectional analyses revealed an interaction (P= 0·009) between plasma concentrations of folate and vitamin B12 in relation to cognitive performance. Plasma vitamin B12 concentrations in the lowest quartile ( < 274 pmol/l) combined with plasma folate concentrations in the highest quartile (>18·5 nmol/l) were associated with a reduced risk of cognitive impairment compared with plasma concentrations in the middle quartiles of both vitamins (OR 0·22, 95 % CI 0·05, 0·92). The interaction between folate and holoTC or MMA in relation to cognitive performance was not significant. In conclusion, this large study population unexposed to mandatory folic acid fortification showed that plasma folate, but not plasma vitamin B12, was associated with cognitive performance. Among the elderly participants with vitamin B12 concentrations in the lower range, the association between plasma folate and cognitive performance was strongest.
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