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Zhao S, Widman L, Hagström H, Shang Y. Disentangling the contributions of alcohol use disorder and alcohol-related liver disease towards dementia: A population-based cohort study. Addiction 2024; 119:706-716. [PMID: 38044804 DOI: 10.1111/add.16395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 10/17/2023] [Indexed: 12/05/2023]
Abstract
AIMS The aim of the study was to disentangle the contributions of alcohol and alcohol-related liver disease (ALD) towards dementia by independently measuring the association between alcohol use disorder (AUD) alone and ALD with dementia. DESIGN This was a nation-wide cohort study. SETTING The study was conducted in Sweden from 1987 to 2020. PARTICIPANTS DELIVER (DEcoding the epidemiology of LIVER disease in Sweden) cohort, containing administrative codes on patients with chronic liver disease from the National Patient Register and other registers between 1987 and 2020. MEASUREMENTS International Classification of Disease 9th (ICD-9) and 10th (ICD-10) version codes were used to define the presence of AUD, ALD and dementia. The associations of AUD alone and ALD with incident dementia were estimated using Cox regression models adjusting for potential confounders. Cumulative incidences were also calculated accounting for competing risks of death. FINDINGS A total of 128 884 individuals with AUD alone, 17 754 with ALD and 2 479 049 controls were identified. During a median follow-up of 8.9 years, 13 395 (10.4%), 2187 (12.3%) and 138 925 (5.6%) dementia cases were identified in these groups, respectively. Dementia rates were increased in AUD alone [adjusted hazard ratio (aHR) = 4.6, 95% confidence interval (CI) = 4.5-4.6] and in ALD (aHR = 8.6, 95% CI = 8.3-9.0) compared with controls. AUD alone was also associated with increased rates of vascular dementia (aHR = 2.3, 95% CI = 2.2-2.5) and Alzheimer's disease (aHR = 1.4, 95% CI = 1.3-1.4), while ALD was only associated with vascular dementia (aHR = 2.7, 95% CI = 2.3-3.2). The median age at dementia diagnosis was 67 years [interquartile range (IQR) = 56-76] in AUD alone and 63 years (IQR = 56-71) in ALD compared with 85 years (IQR = 79-89) in controls. CONCLUSION In Sweden, patients with alcohol use disorder (AUD) appear to have increased rates of dementia and diagnosis at a younger age, compared with patients without AUD. Concurrent alcohol-related liver disease appears to increase the diagnosis rate and lower the median age further.
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Affiliation(s)
- Sixian Zhao
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Linnea Widman
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Hannes Hagström
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Unit of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Ying Shang
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
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Fridgeirsson EA, Sontag D, Rijnbeek P. Attention-based neural networks for clinical prediction modelling on electronic health records. BMC Med Res Methodol 2023; 23:285. [PMID: 38062352 PMCID: PMC10701944 DOI: 10.1186/s12874-023-02112-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Deep learning models have had a lot of success in various fields. However, on structured data they have struggled. Here we apply four state-of-the-art supervised deep learning models using the attention mechanism and compare against logistic regression and XGBoost using discrimination, calibration and clinical utility. METHODS We develop the models using a general practitioners database. We implement a recurrent neural network, a transformer with and without reverse distillation and a graph neural network. We measure discrimination using the area under the receiver operating characteristic curve (AUC) and the area under the precision recall curve (AUPRC). We assess smooth calibration using restricted cubic splines and clinical utility with decision curve analysis. RESULTS Our results show that deep learning approaches can improve discrimination up to 2.5% points AUC and 7.4% points AUPRC. However, on average the baselines are competitive. Most models are similarly calibrated as the baselines except for the graph neural network. The transformer using reverse distillation shows the best performance in clinical utility on two out of three prediction problems over most of the prediction thresholds. CONCLUSION In this study, we evaluated various approaches in supervised learning using neural networks and attention. Here we do a rigorous comparison, not only looking at discrimination but also calibration and clinical utility. There is value in using deep learning models on electronic health record data since it can improve discrimination and clinical utility while providing good calibration. However, good baseline methods are still competitive.
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Affiliation(s)
- Egill A Fridgeirsson
- Department of Medical Informatics, Erasmus University Medical Center, Doctor Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands.
| | - David Sontag
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Peter Rijnbeek
- Department of Medical Informatics, Erasmus University Medical Center, Doctor Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands
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Wang G, Li DY, Vance DE, Li W. Alcohol Use Disorder as a Risk Factor for Cognitive Impairment. J Alzheimers Dis 2023:JAD230181. [PMID: 37355899 DOI: 10.3233/jad-230181] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
BACKGROUND Alcohol use disorder (AUD) is a worldwide problem. The AUD can take the form of hazardous drinking, binge drinking, or alcohol dependence. The effects of alcohol on cognition can be diverse and complex. OBJECTIVE Our study aimed to assess AUD as a risk factor for cognitive impairment. METHODS A literature search was conducted using major electronic databases of PubMed, EMBASE, and Web of Science. Abstracts were screened independently to include data from original research reports. The following keywords were used: alcohol abuse, cognitive impairment, Alzheimer's disease, and dementia. In total, 767 abstracts were retrieved. After removing the duplicates, 76 articles met the criteria for full-text review, of which 41 were included in this report. RESULTS People with AUD are seen from different geographical areas and cultures. AUD is associated with an increased risk of cognitive impairments, Alzheimer's disease, and dementia, especially vascular dementia. In addition, AUD interacts with comorbidities increasing the risk of cognitive impairment. CONCLUSION AUD is associated with an increased risk of cognitive impairments, which may have more than one underlying mechanism.
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Affiliation(s)
- Ge Wang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daniel Y Li
- The College, University of California at Los Angeles, Los Angeles, CA, USA
| | - David E Vance
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Wei Li
- School of Health Professions, University of Alabama at Birmingham, Birmingham, AL, USA
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4
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Therapeutic potential of vitamin B 1 derivative benfotiamine from diabetes to COVID-19. Future Med Chem 2022; 14:809-826. [PMID: 35535731 DOI: 10.4155/fmc-2022-0040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Benfotiamine (S-benzoylthiamine-O-monophosphate), a unique, lipid-soluble derivative of thiamine, is the most potent allithiamine found in roasted garlic, as well as in other herbs of the genus Allium. In addition to potent antioxidative properties, benfotiamine has also been shown to be a strong anti-inflammatory agent with therapeutic significance to several pathological complications. Specifically, over the past decade or so, benfotiamine has been shown to prevent not only various secondary diabetic complications but also several inflammatory complications such as uveitis and endotoxemia. Recent studies also demonstrate that this compound could be used to prevent the symptoms associated with various infectious diseases such as HIV and COVID-19. In this review article, the authors discuss the significance of benfotiamine in the prevention of various pathological complications.
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Hu C, Wu T, Ma S, Huang W, Xu Q, Kashani KB, Hu B, Li J. Association of Thiamine Use with Outcomes in Patients with Sepsis and Alcohol Use Disorder: An Analysis of the MIMIC-III Database. Infect Dis Ther 2022; 11:771-786. [PMID: 35169996 PMCID: PMC8960538 DOI: 10.1007/s40121-022-00603-1] [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] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/31/2022] [Indexed: 11/30/2022] Open
Abstract
Introduction The association between thiamine use and clinical outcomes among patients with sepsis and alcohol use disorder (AUD) is unclear. Methods In this retrospective cohort study of patients from Medical Information Mart for Intensive Care III (MIMIC-III, version 1.4), we evaluated the association of thiamine use with clinical outcomes in patients with AUD and sepsis. The primary outcome was 28-day survival, and secondary outcomes included ICU, in-hospital, and 90-day mortality, ICU and hospital length of stay, duration of vasopressor use, need and duration of continuous renal replacement therapy (CRRT), and dynamic changes for variables up to day 7 after ICU admission. Results A total of 944 patients with sepsis and AUD were included in this cohort [median age, 53.1 years; women, 26.0% (245 of 944)]. Among all patients, 24.6% (233 of 944) received thiamine with a dose of 200 mg (IQR 100–345 mg). The 28-day mortality was 11.2% (26 of 233) in the thiamine use group compared with 18.6% (132 of 711) in the no thiamine use group (P = 0.009). After adjustment for a series of confounders, the mixed-effects Cox proportional hazards models showed that administration of thiamine was associated with a lower risk of 28-day mortality compared with no administration of thiamine. Conclusions In critically ill patients with alcohol use disorder admitted for sepsis, treatment with thiamine may be associated with a decreased risk of death. However, the present results should be interpreted with caution due to the limitations of retrospective design. Additional larger, multicenter randomized controlled trials are needed to confirm our findings. Supplementary Information The online version contains supplementary material available at 10.1007/s40121-022-00603-1.
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Affiliation(s)
- Chang Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China.,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China
| | - Tong Wu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China.,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China
| | - Siqing Ma
- Department of Critical Care Medicine, Qinghai Provincial People's Hospital, Xining, Qinghai, China
| | - Weipeng Huang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China.,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China
| | - Qiancheng Xu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China.,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Bo Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China. .,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China.
| | - Jianguo Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, 430071, Hubei, China. .,Clinical Research Center of Hubei Critical Care Medicine, Wuhan, 430071, Hubei, China.
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Abstract
PURPOSE OF REVIEW Alcohol is gaining increased recognition as an important risk factor for dementia. This review summarises recent evidence on the relationship between alcohol use and dementia, focusing on studies published from January 2019 to August 2020. RECENT FINDINGS Epidemiological data continues to yield results consistent with protective effects of low-to-moderate alcohol consumption for dementia and cognitive function. However, recent literature highlights the methodological limitations of existing observational studies. The effects of chronic, heavy alcohol use are clearer, with excessive consumption causing alcohol-related brain damage. Several pathways to this damage have been suggested, including the neurotoxic effects of thiamine deficiency, ethanol and acetaldehyde. SUMMARY Future research would benefit from greater implementation of analytical and design-based approaches to robustly model the alcohol use-dementia relationship in the general population, and should make use of large, consortia-level data. Early intervention to prevent dementia is critical: thiamine substitution has shown potential but requires more research, and psychosocial interventions to treat harmful alcohol use have proven effective. Finally, diagnostic criteria for alcohol-related dementia require formal validation to ensure usefulness in clinical practice.
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Caballeria E, Oliveras C, Nuño L, Balcells-Oliveró M, Gual A, López-Pelayo H. A systematic review of treatments for alcohol-related cognitive impairment: lessons from the past and gaps for future interventions. Psychol Med 2020; 50:2113-2127. [PMID: 32840195 DOI: 10.1017/s0033291720002925] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Alcohol-related cognitive impairment (ARCI) is highly prevalent among patients with alcohol dependence. Although it negatively influences treatment outcome, this condition is underdiagnosed and undertreated. The aim of this systematic review is to investigate the existing evidence regarding both cognitive and pharmacological interventions for ARCI. We systematically reviewed PubMed, Scopus and Science direct databases up to May 2019 and followed the PRISMA guidelines. The quality of the studies was assessed using the Jadad Scale. Twenty-six studies were eligible for inclusion (14 referring to neuropsychological interventions and 12 to pharmacological treatments). Among neuropsychological interventions, computerised treatments, errorless learning and component method showed positive effects on working memory, memory measures and general cognitive function. On the other hand, thiamine, memantine and methylphenidate improved working memory, long-term memory and general cognitive function. Nevertheless, these studies have several limitations, such as small sample size, lack of replication of the results or low specificity of the interventions. Therefore, no gold-standard intervention can yet be recommended for clinical practice, and further research based on promising strategies (e.g. digital interventions, thiamine) is required.
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Affiliation(s)
- Elsa Caballeria
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
| | - Clara Oliveras
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
| | - Laura Nuño
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
| | - Mercedes Balcells-Oliveró
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
| | - Antoni Gual
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
| | - Hugo López-Pelayo
- Grup Recerca Addiccions Clínic (GRAC-GRE). Department of Psychiatry, Clinical Institute of Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, RETICS (Red de Trastornos adictivos), University of Barcelona, Villarroel, 170, 08036Barcelona, Spain
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Yoshida M, Izawa J, Wakatake H, Saito H, Kawabata C, Matsushima S, Suzuki A, Nagatomi A, Yoshida T, Masui Y, Fujitani S. Mortality associated with new risk classification of developing refeeding syndrome in critically ill patients: A cohort study. Clin Nutr 2020; 40:1207-1213. [PMID: 32828568 DOI: 10.1016/j.clnu.2020.07.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/11/2020] [Accepted: 07/28/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Although refeeding syndrome (RFS) has been recognized as a potentially fatal metabolic complication, the definition of RFS has remained unclear. Recently, European researchers suggested an evidence-based and consensus-supported algorithm that consisted of a new RFS risk classification and treatment strategies for medical inpatients. The classification was based on the National Institute for Health and Clinical Excellence (NICE) criteria for patients at risk of developing RFS. In this study, we aimed to investigate the frequency of each applied new risk group and the association between the new classification and mortality in critically ill patients. METHODS This cohort study was conducted at a Japanese metropolitan tertiary-care university hospital from December 2016 to December 2018. We included critically ill adult patients who were admitted to the intensive care unit (ICU) via the emergency department and who stayed in the ICU for 24 h or longer. We applied the new risk classification based on the NICE RFS risk factors on ICU admission. The main exposure was risk classification of RFS: no risk, low risk, high risk, or very high risk. The primary outcome was in-hospital mortality censored at day 30 after ICU admission. We performed a multivariable analysis using Cox proportional hazard regression. RESULTS We analyzed 542 patients who met the eligibility criteria. The prevalence of the four RFS risk classification groups was 25.8% for no risk, 25.7% for low risk, 46.5% for high risk, and 2.0% for very high risk. The 30-day mortality was 5.0%, 7.2%, 16.3%, and 27.3%, respectively (log-rank trend test: p < 0.001). In the multivariable Cox regression, adjusted hazard ratios with no risk group as a reference were 1.28 (95% CI 0.48-3.38) for low risk, 2.81 (95% CI 1.24-6.35) for high risk, and 3.17 (95% CI 0.78-12.91) for very high risk. CONCLUSIONS Approximately half the critically ill patients were categorized as high or very high risk based on the new risk classification. Furthermore, as the risk categories progressed, the 30-day in-hospital mortality increased. Early recognition of patients at risk of developing RFS may improve patient outcomes through timely and optimal nutritional treatment.
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Affiliation(s)
- Minoru Yoshida
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Junichi Izawa
- Department of Medicine, Okinawa Prefectural Yaeyama Hospital, 584-1 Maezato, Ishigaki, Okinawa, 907-0002, Japan
| | - Haruaki Wakatake
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Hiroki Saito
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Chizu Kawabata
- Department of Nursing, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Shinya Matsushima
- Department of Rehabilitation, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Aya Suzuki
- Department of Nutrition, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Akiyoshi Nagatomi
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Toru Yoshida
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Yoshihiro Masui
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, 1197-1 Yasashicho, Asahi-ku, Yokohama, Kanagawa, 241-0811, Japan
| | - Shigeki Fujitani
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan.
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Rao R, Topiwala A. Alcohol use disorders and the brain. Addiction 2020; 115:1580-1589. [PMID: 32112474 DOI: 10.1111/add.15023] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/11/2020] [Accepted: 02/25/2020] [Indexed: 12/15/2022]
Abstract
A diagnosis of alcohol use disorder is associated with a higher risk of dementia, but a dose-response relationship between alcohol intake consumption and cognitive impairment remains unclear. Alcohol is associated with a range of effects on the central nervous system at different doses and acts on a number of receptors. Acute disorders include Wernicke's encephalopathy (WE), traumatic brain injury, blackouts, seizures, stroke and hepatic encephalopathy. The most common manifestations of chronic alcohol consumption are Korsakoff's syndrome (KS) and alcohol-related dementia (ARD). There is limited evidence for benefit from memantine in the treatment of ARD, but stronger evidence for the use of high-dose parenteral thiamine in the progression of neuropsychiatric symptoms for WE. Accumulating evidence exists for pharmacological treatment in the prevention of hepatic encephalopathy. Rehabilitation of people with ARD may take several years, and requires an approach that addresses physical and psychosocial factors.
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Affiliation(s)
- Rahul Rao
- Institute of Psychiatry, Psychology and Neuroscience, Department of Old Age Psychiatry, London, UK.,South London and Maudsley NHS Foundation Trust, Psychological Medicine and Older Adults Directorate, London, UK
| | - Anya Topiwala
- University of Oxford, Big Data Institute, Nuffield Department of Population Health
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Tardy AL, Pouteau E, Marquez D, Yilmaz C, Scholey A. Vitamins and Minerals for Energy, Fatigue and Cognition: A Narrative Review of the Biochemical and Clinical Evidence. Nutrients 2020; 12:E228. [PMID: 31963141 PMCID: PMC7019700 DOI: 10.3390/nu12010228] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 12/17/2022] Open
Abstract
Vitamins and minerals are essential to humans as they play essential roles in a variety of basic metabolic pathways that support fundamental cellular functions. In particular, their involvement in energy-yielding metabolism, DNA synthesis, oxygen transport, and neuronal functions makes them critical for brain and muscular function. These, in turn, translate into effects on cognitive and psychological processes, including mental and physical fatigue. This review is focused on B vitamins (B1, B2, B3, B5, B6, B8, B9 and B12), vitamin C, iron, magnesium and zinc, which have recognized roles in these outcomes. It summarizes the biochemical bases and actions of these micronutrients at both the molecular and cellular levels and connects them with cognitive and psychological symptoms, as well as manifestations of fatigue that may occur when status or supplies of these micronutrients are not adequate.
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Affiliation(s)
- Anne-Laure Tardy
- Sanofi Consumer Healthcare, Global Medical Nutritionals, 94250 Gentilly, France;
| | - Etienne Pouteau
- Sanofi Consumer Healthcare, Global Medical Nutritionals, 94250 Gentilly, France;
| | | | - Cansu Yilmaz
- Sanofi Consumer Healthcare, 34394 Beşiktaş Istanbul, Turkey;
| | - Andrew Scholey
- Centre for Human Psychopharmacology, Swinburne University, Victoria, VIC 3122, Australia;
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Moretti R, Peinkhofer C. B Vitamins and Fatty Acids: What Do They Share with Small Vessel Disease-Related Dementia? Int J Mol Sci 2019; 20:E5797. [PMID: 31752183 PMCID: PMC6888477 DOI: 10.3390/ijms20225797] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/21/2019] [Accepted: 11/12/2019] [Indexed: 12/12/2022] Open
Abstract
Many studies have been written on vitamin supplementation, fatty acid, and dementia, but results are still under debate, and no definite conclusion has yet been drawn. Nevertheless, a significant amount of lab evidence confirms that vitamins of the B group are tightly related to gene control for endothelium protection, act as antioxidants, play a co-enzymatic role in the most critical biochemical reactions inside the brain, and cooperate with many other elements, such as choline, for the synthesis of polyunsaturated phosphatidylcholine, through S-adenosyl-methionine (SAM) methyl donation. B-vitamins have anti-inflammatory properties and act in protective roles against neurodegenerative mechanisms, for example, through modulation of the glutamate currents and a reduction of the calcium currents. In addition, they also have extraordinary antioxidant properties. However, laboratory data are far from clinical practice. Many studies have tried to apply these results in everyday clinical activity, but results have been discouraging and far from a possible resolution of the associated mysteries, like those represented by Alzheimer's disease (AD) or small vessel disease dementia. Above all, two significant problems emerge from the research: No consensus exists on general diagnostic criteria-MCI or AD? Which diagnostic criteria should be applied for small vessel disease-related dementia? In addition, no general schema exists for determining a possible correct time of implementation to have effective results. Here we present an up-to-date review of the literature on such topics, shedding some light on the possible interaction of vitamins and phosphatidylcholine, and their role in brain metabolism and catabolism. Further studies should take into account all of these questions, with well-designed and world-homogeneous trials.
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Affiliation(s)
- Rita Moretti
- Neurology Clinic, Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy;
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