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Thiamine deficiency

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https://www.readbyqxmd.com/read/29747720/wernicke-encephalopathy-without-delirium-that-appeared-as-agitation-in-a-patient-with-lung-cancer
#1
Hideki Onishi, Mayumi Ishida, Takao Takahashi, Yoshitada Taji, Kenji Ikebuchi, Daisuke Furuya, Nozomu Uchida, Tatsuo Akechi
OBJECTIVE: Wernicke encephalopathy (WE) is a neuropsychiatric disorder caused by thiamine deficiency, and is sometimes overlooked because of the diversity of clinical symptoms. METHOD: From a series of WE patients with cancer, we report a lung cancer patient who developed WE, the main symptom of which was agitation.ResultA 50-year-old woman with lung cancer was referred to our psycho-oncology clinic because of agitation lasting for three days. No laboratory findings or drugs explaining her agitation were identified...
May 11, 2018: Palliative & Supportive Care
https://www.readbyqxmd.com/read/29715193/severe-lactic-acidosis-in-an-extremely-low-birth-weight-infant-due-to-thiamine-deficiency
#2
Hulya Ozdemir, Hulya Bilgen, Zeynep Alp Unkar, Ertugrul Kiykim, Asli Memisoglu, Eren Ozek
BACKGROUND: In this case report, we present a preterm newborn with persistent lactic acidosis who received total parenteral nutrition (TPN) that lacked thiamine. CASE PRESENTATION: A 28-week-old, 750 g female infant was born with an Apgar score of 8 at the 5th minute. Umbilical cord blood gas levels, including lactate level, were normal, and she was admitted to our neonatal intensive care unit (NICU). Achieving full enteral feeding was not possible due to gastric residues and abdominal distention, making the patient dependent on TPN during the first 2 weeks of life...
May 1, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29694308/severe-neurological-complication-following-adjustable-gastric-banding
#3
G Martines, N Musa, F Aquilino, P Capuano
AIM: In the last years with the increase of bariatric surgery, first of all as a result of new indications, a rise in the incidence of nutrient-related complications has been observed. Currently little is known about the impact of post-bariatric malnutrition and neurological complications. Wernicke's encephalopathy is a severe neurological syndrome which occurs as a result of thiamine deficiency. Wernicke-Korsakoff syndrome must be considered a serious neurological complication of bariatric surgery with significant morbidity and mortality, with rapidly progressing neurological symptoms, and must be treated immediately...
March 2018: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29686552/myocardial-ischemia-in-an-adolescent-secondary-to-nutritional-thiamine-deficiency
#4
Cassandra Lefevre, Lea H Mallett, Lori Wick
Thiamine (vitamin B1) is an essential vitamin found in most food products in developed nations. Deficiencies in this crucial vitamin lead to diseases related to nutritional needs, metabolic demands, enzymatic function, and neurological inflammation. We present an 18-year-old patient with a history of nasopharyngeal carcinoma and total parenteral nutrition (TPN) dependence who experienced neurological manifestations and heart failure, likely due to underlying thiamine deficiency, dehydration, and vasodilation...
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29684467/vitamin-c-for-the-treatment-of-sepsis-the-scientific-rationale
#5
REVIEW
Paul E Marik
Most vertebrates can synthesize vitamin C with synthesis increasing during stress. Humans, however, have lost the ability to synthesize vitamin C. Vitamin C is an important anti-oxidant and an enzyme cofactor for many important biological reactions. Sepsis results in the overwhelming production of reactive oxygen species with widespread endothelial, cellular and mitochondrial injury leading to progressive organ failure. Sepsis is associated with an acute deficiency of vitamin C. In experimental sepsis models, intravenous vitamin C reduces organ injury and improves survival...
April 20, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29659562/organic-cation-transporter-1-oct1-modulates-multiple-cardiometabolic-traits-through-effects-on-hepatic-thiamine-content
#6
Xiaomin Liang, Sook Wah Yee, Huan-Chieh Chien, Eugene C Chen, Qi Luo, Ling Zou, Meiling Piao, Arias Mifune, Ligong Chen, Meredith E Calvert, Sarah King, Frode Norheim, Janna Abad, Ronald M Krauss, Kathleen M Giacomini
A constellation of metabolic disorders, including obesity, dysregulated lipids, and elevations in blood glucose levels, has been associated with cardiovascular disease and diabetes. Analysis of data from recently published genome-wide association studies (GWAS) demonstrated that reduced-function polymorphisms in the organic cation transporter, OCT1 (SLC22A1), are significantly associated with higher total cholesterol, low-density lipoprotein (LDL) cholesterol, and triglyceride (TG) levels and an increased risk for type 2 diabetes mellitus, yet the mechanism linking OCT1 to these metabolic traits remains puzzling...
April 2018: PLoS Biology
https://www.readbyqxmd.com/read/29596284/a-case-of-wernicke-encephalopathy-developing-after-ileal-bypass-surgery
#7
Tülay Kamaşak, Sibel Kul, Mustafa Tuşat, Nezir Ozgun, Ali Cansu
Wernicke encephalopathy is an acute neurological problem resulting from thiamine deficiency and manifesting with mental confusion, oculomotor dysfunction, and ataxia. It is associated with alcohol dependence in adults. Preparatory factors include hyperemesis gravidarum, prolonged diarrhea, prolonged parental nutrition without vitamin support, absorption disorders, anorexia, cancer, and chemotherapy. Failure to consider the clinical findings and preparatory factors of this disease, which is rare in children, can delay diagnosis...
March 28, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29593640/vestibular-dysfunction-in-wernicke-s-encephalopathy-predominant-impairment-of-the-horizontal-semicircular-canals
#8
Seung-Han Lee, Sang-Hoon Kim, Ji-Min Kim, Alexander Andrea Tarnutzer
Background: Wernicke's encephalopathy (WE), a metabolic disorder due to thiamine deficiency, manifests with various neurological symptoms and signs. It has been known as a cause of vestibular dysfunction. Preliminary reports have proposed predominant involvement of the horizontal semicircular canals (HSCs). Objective: To better characterize the pattern of vestibular impairment in patients with WE using quantitative video head-impulse testing and to review the literature regarding this topic...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29545765/clinical-characteristics-and-etiology-of-bilateral-vestibular-loss-in-a-cohort-from-central-illinois
#9
Jorge C Kattah
Background: Previous series of bilateral vestibular loss (BVL) identified numerous etiologies, but surprisingly, a cause in a significant number of cases remains unknown. In an effort to understand possible etiology and management strategies, a global effort is currently in progress. Here, I contribute my 10-year experience with both acute and chronic BVL during the 2007-2017 decade. Methods: This is a retrospective review of the charts and EMR of patients diagnosed with BVL in the last 10 years...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29500675/a-randomized-trial-of-a-novel-chewable-multivitamin-and-mineral-supplement-following-roux-en-y-gastric-bypass
#10
Jamie Perin, Gregory Prokopowicz, Margaret Furtado, Konstantinos Papas, Kimberley E Steele
BACKGROUND: Vitamin and mineral deficiencies are common following Roux-en-Y gastric bypass (RYGB) and can lead to significant morbidity, but little research on the efficacy of vitamin supplementation regimens exists. We compared the efficacy and tolerability of an investigational versus a standard multivitamin regimen in patients undergoing RYGB. METHODS: Fifty-six patients, aged 18 to 65, were randomized to an investigational versus a standard multivitamin. Plasma levels of vitamins A, B-12, D, E-α, E-β/γ, thiamine, folate, iron, iron-binding capacity, iron saturation, prealbumin, and parathyroid hormone (PTH) were measured at 3 and 6 months postoperatively...
March 2, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29494674/post-mortem-findings-and-their-relation-to-aa-amyloidosis-in-free-ranging-herring-gulls-larus-argentatus
#11
Désirée S Jansson, Caroline Bröjer, Aleksija Neimanis, Torsten Mörner, Charles L Murphy, Faruk Otman, Per Westermark
Since the late 1990s, high mortality and declining populations have been reported among sea birds including Herring gulls (Larus argentatus) from the Baltic Sea area in Northern Europe. Repeated BoNT type C/D botulism outbreaks have occurred, but it remains unclear whether this is the sole and primary cause of mortality. Thiamine deficiency has also been suggested as a causal or contributing factor. With this study, we aimed to investigate gross and microscopic pathology in Herring gulls from affected breeding sites in Sweden in search of contributing diseases...
2018: PloS One
https://www.readbyqxmd.com/read/29490669/thiamine-diphosphate-reduction-strongly-correlates-with-brain-glucose-hypometabolism-in-alzheimer-s-disease-whereas-amyloid-deposition-does-not
#12
Shaoming Sang, Xiaoli Pan, Zhichun Chen, Fan Zeng, Shumei Pan, Huimin Liu, Lirong Jin, Guoqiang Fei, Changpeng Wang, Shuhua Ren, Fangyang Jiao, Weiqi Bao, Weiyan Zhou, Yihui Guan, Yiqiu Zhang, Hongcheng Shi, Yanjiang Wang, Xiang Yu, Yun Wang, Chunjiu Zhong
BACKGROUND: The underlying mechanism of brain glucose hypometabolism, an invariant neurodegenerative feature that tightly correlates with cognitive impairment and disease progression of Alzheimer's disease (AD), remains elusive. METHODS: Positron emission tomography with 2-[18 F]fluoro-2-deoxy-D-glucose (FDG-PET) was used to evaluate brain glucose metabolism, presented as the rate of 2-[18 F]fluoro-2-deoxy-D-glucose standardized uptake value ratio (FDG SUVR) in patients with AD or control subjects and in mice with or without thiamine deficiency induced by a thiamine-deprived diet...
March 1, 2018: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/29489643/wet-beriberi-with-multiple-organ-failure-remarkably-reversed-by-thiamine-administration-a-case-report-and-literature-review
#13
REVIEW
Yuanli Lei, Ming-Hua Zheng, Weijian Huang, Jie Zhang, Yingru Lu
RATIONALE: Circulatory failure, especially with low systemic vascular resistance (SVR), as observed in septic shock, thyrotoxicosis, and anemia, is a particular pattern that should suggest thiamine (vitamin B1) deficiency. The clinical picture of wet beriberi secondary to thiamine deficiency only demonstrates non-specific clinical manifestations. For a diagnosis of wet beriberi, medical history is very important. Interestingly, imprisonment was also found to be related to thiamine deficiency...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29482863/clinical-characteristics-and-outcomes-associated-with-high-dose-intravenous-thiamine-administration-in-patients-with-encephalopathy
#14
Zev M Nakamura, Jason R Tatreau, Donald L Rosenstein, Eliza M Park
BACKGROUND: Wernicke encephalopathy is a common neuropsychiatric syndrome due to thiamine deficiency. There is no consensus regarding thiamine dosing when Wernicke encephalopathy is suspected. A longstanding dosing strategy for Wernicke encephalopathy is 100mg daily, yet updated clinical guidelines suggest using high-dose intravenous (HDIV) thiamine. OBJECTIVE: To describe thiamine prescribing practices at a large, public academic hospital and investigate clinical characteristics and outcomes associated with HDIV thiamine in patients with encephalopathy who received IV thiamine...
January 11, 2018: Psychosomatics
https://www.readbyqxmd.com/read/29478423/early-detection-and-successful-treatment-of-wernicke-s-encephalopathy-in-outpatients-without-the-complete-classic-triad-of-symptoms-who-attended-a-psycho-oncology-clinic
#15
Hideki Onishi, Mayumi Ishida, Iori Tanahashi, Takao Takahashi, Kenji Ikebuchi, Yoshitada Taji, Hisashi Kato, Tatsuo Akechi
OBJECTIVE: Wernicke's encephalopathy (WE) is a neuropsychiatric disorder caused by a thiamine deficiency. Although WE has been recognized in cancer patients, it can be overlooked because many patients do not exhibit symptoms that are typical of WE, such as delirium, ataxia, or ocular palsy. Furthermore, outpatients with WE who intermittently present at psycho-oncology clinics have not been described as far as we can ascertain. METHOD: This report describes two patients who did not exhibit the complete classic triad of symptoms among a series with cancer and WE, and who attended a psycho-oncology outpatient clinic...
February 26, 2018: Palliative & Supportive Care
https://www.readbyqxmd.com/read/29477220/thiamin
#16
REVIEW
Derrick Lonsdale
Starting with a brief history of beriberi and the discovery that thiamin deficiency is its cause, the symptoms and signs are reviewed. None are pathognomonic. The disease has a low mortality and a long morbidity. The appearance of the patient can be deceptive, often being mistaken for psychosomatic disease in the early stages. The chemistry of thiamin and the laboratory methodology for depicting its deficiency are outlined. The diseases associated with thiamin deficiency, apart from malnutrition, include a number of genetically determined conditions where mutations, either in the cofactor relationship or a transporter, provide the etiology...
2018: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/29469010/effect-of-blood-thiamine-concentrations-on-mortality-influence-of-nutritional-status
#17
Heitor Pons Leite, Lúcio Flávio Peixoto de Lima, José Augusto de A C Taddei, Ângela Tavares Paes
OBJECTIVE: To test the hypothesis that low blood thiamine concentrations in malnourished critically ill children are associated with higher risk of 30-d mortality. METHODS: Prospective cohort study in 202 consecutively admitted children who had whole blood thiamine concentrations assessed on admission and on days 5 and 10 of intensive care unit (ICU) stay. The primary outcome variable was 30-d mortality. Mean blood thiamine concentrations within the first 10 d of ICU stay, age, sex, malnutrition, C-reactive protein concentration, Pediatric Index of Mortality 2 score, and severe sepsis/septic shock were the main potential exposure variables for outcome...
April 2018: Nutrition
https://www.readbyqxmd.com/read/29448987/the-refeeding-syndrome-importance-of-phosphorus
#18
REVIEW
Marta Araujo Castro, Clotilde Vázquez Martínez
Refeeding syndrome (RS) is a complex disease that occurs when nutritional support is initiated after a period of starvation. The hallmark feature is the hypophosphataemia, however other biochemical abnormalities like hypokalaemia, hypomagnesaemia, thiamine deficiency and disorder of sodium and fluid balance are common. The incidence of RS is unknown as no universally accepted definition exists, but it is frequently underdiagnosed. RS is a potentially fatal, but preventable, disorder. The identification of patients at risk is crucial to improve their management...
February 12, 2018: Medicina Clínica
https://www.readbyqxmd.com/read/29445841/folding-and-assembly-defects-of-pyruvate-dehydrogenase-deficiency-related-variants-in-the-e1%C3%AE-subunit-of-the-pyruvate-dehydrogenase-complex
#19
Srdja Drakulic, Jay Rai, Steen Vang Petersen, Monika M Golas, Bjoern Sander
The pyruvate dehydrogenase complex (PDC) bridges glycolysis and the citric acid cycle. In human, PDC deficiency leads to severe neurodevelopmental delay and progressive neurodegeneration. The majority of cases are caused by variants in the gene encoding the PDC subunit E1α. The molecular effects of the variants, however, remain poorly understood. Using yeast as a eukaryotic model system, we have studied the substitutions A189V, M230V, and R322C in yeast E1α (corresponding to the pathogenic variants A169V, M210V, and R302C in human E1α) and evaluated how substitutions of single amino acid residues within different functional E1α regions affect PDC structure and activity...
February 14, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29427613/microglial-activation-and-vascular-responses-that-are-associated-with-early-thalamic-neurodegeneration-resulting-from-thiamine-deficiency
#20
John F Bowyer, Karen M Tranter, Sumit Sarkar, Joseph P Hanig
Thiamine/vitamin B1 deficiency can lead to behavioral changes and neurotoxicity in humans. This may due in part to vascular damage, neuroinflammation and neuronal degeneration in the diencephalon, which is seen in animal models of pyrithiamine-enhanced thiamine deficiency. However, the time course of the progression of these changes in the animal models has been poorly characterized. Therefore, in this study, the progression of: 1) activated microglial association with vasculature; 2) neurodegeneration; and 3) any vascular leakage in the forebrain during the progress of thiamine deficiency were determined...
March 2018: Neurotoxicology
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