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Nelson-Piercy C, Dean C, Shehmar M, Gadsby R, O'Hara M, Hodson K, Nana M. The Management of Nausea and Vomiting in Pregnancy and Hyperemesis Gravidarum (Green-top Guideline No. 69). BJOG 2024; 131:e1-e30. [PMID: 38311315 DOI: 10.1111/1471-0528.17739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
An objective and validated index of nausea and vomiting such as the Pregnancy-Unique Quantification of Emesis (PUQE) and HyperEmesis Level Prediction (HELP) tools can be used to classify the severity of NVP and HG. [Grade C] Ketonuria is not an indicator of dehydration and should not be used to assess severity. [Grade A] There are safety and efficacy data for first line antiemetics such as anti (H1) histamines, phenothiazines and doxylamine/pyridoxine (Xonvea®) and they should be prescribed initially when required for NVP and HG (Appendix III). [Grade A] There is evidence that ondansetron is safe and effective. Its use as a second line antiemetic should not be discouraged if first line antiemetics are ineffective. Women can be reassured regarding a very small increase in the absolute risk of orofacial clefting with ondansetron use in the first trimester, which should be balanced with the risks of poorly managed HG. [Grade B] Metoclopramide is safe and effective and can be used alone or in combination with other antiemetics. [Grade B] Because of the risk of extrapyramidal effects metoclopramide should be used as second-line therapy. Intravenous doses should be administered by slow bolus injection over at least 3 minutes to help minimise these. [Grade C] Women should be asked about previous adverse reactions to antiemetic therapies. If adverse reactions occur, there should be prompt cessation of the medications. [GPP] Normal saline (0.9% NaCl) with additional potassium chloride in each bag, with administration guided by daily monitoring of electrolytes, is the most appropriate intravenous hydration. [Grade C] Combinations of different drugs should be used in women who do not respond to a single antiemetic. Suggested antiemetics for UK use are given in Appendix III. [GPP] Thiamine supplementation (either oral 100 mg tds or intravenous as part of vitamin B complex (Pabrinex®)) should be given to all women admitted with vomiting, or severely reduced dietary intake, especially before administration of dextrose or parenteral nutrition. [Grade D] All therapeutic measures should have been tried before considering termination of pregnancy. [Grade C].
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Mizuguchi Y, Mouri H, Jo T, Hashimoto Y, Matsui H, Fushimi K, Yasunaga H, Taniguchi T. Clinical Features and Outcomes of Shoshin Beriberi. Int Heart J 2024; 65:271-278. [PMID: 38479848 DOI: 10.1536/ihj.23-459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Shoshin beriberi is a fulminant form of wet beriberi, but there are no large-scale studies detailing the clinical features of this disease. We investigated the clinical features and outcomes of Shoshin beriberi using data from a nationwide database in Japan.Using the Diagnosis Procedure Combination database, we identified patients with Shoshin beriberi between July 2010 and March 2021. We retrospectively investigated the characteristics, comorbidities, treatment, and in-hospital mortality of patients with Shoshin beriberi. The chi-square test or Fisher's exact test was used for categorical variables, and the Mann-Whitney U-test was used for continuous variables.We identified 62 patients with Shoshin beriberi. The median (interquartile range) age was 63 (48-69) years. Furthermore, 54 patients were male (87%). The most common comorbidity was alcohol-related disorder (34%). The median (interquartile range) length of hospital and intensive care unit stays were 17 (range, 10-35) and 5 (range, 1-9) days, respectively. The proportion of patients who received venoarterial extracorporeal membrane oxygenation, intra-aortic balloon pump, continuous renal replacement therapy, and mechanical ventilation was 11, 5, 29, and 63%, respectively. Among the patients with Shoshin beriberi, 53% received 2 or more catecholamines or inotropes. The in-hospital mortality was 23%. Impaired consciousness at admission was significantly related to in-hospital death (P < 0.001).The present study is the first and largest to describe the clinical features of patients with Shoshin beriberi using a nationwide database. Impaired consciousness at admission was significantly associated with in-hospital death.
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Affiliation(s)
- Yoshiki Mizuguchi
- Department of Anesthesiology and Intensive Care Medicine, Kanazawa University
| | - Hideyuki Mouri
- Department of Anesthesiology and Intensive Care Medicine, Kanazawa University
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo
- Department of Respiratory Medicine, The University of Tokyo Hospital
| | - Yohei Hashimoto
- Save Sight Institute, The University of Sydney, South Block, Sydney Eye Hospital
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine and Dental Science
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Takumi Taniguchi
- Department of Anesthesiology and Intensive Care Medicine, Kanazawa University
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Jackson C, Furnes M, Rød‐Eriksen L, Yap KN, Davey M, Fossøy F, Flagstad Ø, Eide NE, Mjøen T, Ulvund K. Subclinical thiamine deficiency results in failed reproduction in Arctic foxes. Vet Med Sci 2024; 10:e1358. [PMID: 38356320 PMCID: PMC10867461 DOI: 10.1002/vms3.1358] [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: 07/13/2023] [Revised: 11/20/2023] [Accepted: 01/07/2024] [Indexed: 02/16/2024] Open
Abstract
Thiamine deficiency can result in life-threatening physiological and neurological complications. While a thiamine-deficient diet may result in the onset of such symptoms, the presence of thiaminase - an enzyme that breaks down thiamine - is very often the cause. In such instances, thiaminase counteracts the bioavailability and uptake of thiamine, even when food-thiamine levels are adequate. Here, we report on a case of failed reproduction in seven Arctic fox (Vulpes lagopus) breeding pairs kept at a captive breeding facility, including the presentation of severe thiamine deficiency symptoms in two male foxes. Symptoms included ataxia, obtundation, truncal sway, star-gazing and visual impairment. Blood tests were inconclusive, yet symptoms resolved following treatment with a series of thiamine hydrochloride injections, thereby verifying the diagnosis. A fish-dominated feed, which for the first time had been frozen for a prolonged period, was identified as the likely source of thiaminase and subsequent deterioration in the animals' health. Symptoms in the two males arose during the annual mating period. All seven breeding pairs at the captive breeding station failed to reproduce - a phenomenon never recorded during the captive breeding facility's preceding 17-year operation. Relating our findings to peer-reviewed literature, the second part of this case report assesses how thiamine deficiency (due to thiaminase activity) likely resulted in subclinical effects that impaired the production of reproduction hormones, and thereby led to a complete breeding failure. While previous work has highlighted the potentially lethal effects of thiamine deficiency in farmed foxes, this is, to our knowledge the first study showing how subclinical effects in both males and females may inhibit reproduction in foxes in general, but specifically Arctic foxes. The findings from our case report are not only relevant for captive breeding facilities, but for the welfare and management of captive carnivorous animals in general.
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Affiliation(s)
- Craig Jackson
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Marianne Furnes
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Lars Rød‐Eriksen
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Kang Nian Yap
- Department of BiologyNorwegian University of Science and TechnologyTrondheimNorway
| | - Marie Davey
- Department of Terrestrial BiodiversityNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Frode Fossøy
- Department of Aquatic BiodiversityNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Øystein Flagstad
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Nina E. Eide
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Toralf Mjøen
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
| | - Kristine Ulvund
- Department of Terrestrial EcologyNorwegian Institute for Nature Research (NINA)TrondheimNorway
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Utrilla Fornals A, Costas-Batlle C, Medlin S, Menjón-Lajusticia E, Cisneros-González J, Saura-Carmona P, Montoro-Huguet MA. Metabolic and Nutritional Issues after Lower Digestive Tract Surgery: The Important Role of the Dietitian in a Multidisciplinary Setting. Nutrients 2024; 16:246. [PMID: 38257141 PMCID: PMC10820062 DOI: 10.3390/nu16020246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/31/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Many patients undergo small bowel and colon surgery for reasons related to malignancy, inflammatory bowel disease (IBD), mesenteric ischemia, and other benign conditions, including post-operative adhesions, hernias, trauma, volvulus, or diverticula. Some patients arrive in the operating theatre severely malnourished due to an underlying disease, while others develop complications (e.g., anastomotic leaks, abscesses, or strictures) that induce a systemic inflammatory response that can increase their energy and protein requirements. Finally, anatomical and functional changes resulting from surgery can affect either nutritional status due to malabsorption or nutritional support (NS) pathways. The dietitian providing NS to these patients needs to understand the pathophysiology underlying these sequelae and collaborate with other professionals, including surgeons, internists, nurses, and pharmacists. The aim of this review is to provide an overview of the nutritional and metabolic consequences of different types of lower gastrointestinal surgery and the role of the dietitian in providing comprehensive patient care. This article reviews the effects of small bowel resection on macronutrient and micronutrient absorption, the effects of colectomies (e.g., ileocolectomy, low anterior resection, abdominoperineal resection, and proctocolectomy) that require special dietary considerations, nutritional considerations specific to ostomized patients, and clinical practice guidelines for caregivers of patients who have undergone a surgery for local and systemic complications of IBD. Finally, we highlight the valuable contribution of the dietitian in the challenging management of short bowel syndrome and intestinal failure.
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Affiliation(s)
| | - Cristian Costas-Batlle
- Department of Nutrition and Dietetics, Bradford Teaching Hospitals NHS Foundation Trust, Bradford BD9 6RJ, UK;
| | | | - Elisa Menjón-Lajusticia
- Gastroenterology, Hepatology and Nutrition Unit, University Hospital San Jorge, 22004 Huesca, Spain;
| | - Julia Cisneros-González
- Faculty of Health and Sport Sciences, University of Zaragoza, 22002 Huesca, Spain; (J.C.-G.); (P.S.-C.)
| | - Patricia Saura-Carmona
- Faculty of Health and Sport Sciences, University of Zaragoza, 22002 Huesca, Spain; (J.C.-G.); (P.S.-C.)
| | - Miguel A. Montoro-Huguet
- Gastroenterology, Hepatology and Nutrition Unit, University Hospital San Jorge, 22004 Huesca, Spain;
- Faculty of Health and Sport Sciences, University of Zaragoza, 22002 Huesca, Spain; (J.C.-G.); (P.S.-C.)
- Department of Medicine, Faculty of Health and Sport Sciences, University of Zaragoza, 22002 Huesca, Spain
- Aragon Health Research Institute (IIS Aragon), University of Zaragoza, 22002 Huesca, Spain
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Nisar S, Kareem O, Muzaffer U, Tanvir M, Ganaie MA, Ahmed RN. Descriptive spectrum of thiamine deficiency in pregnancy: A potentially preventable condition. Int J Gynaecol Obstet 2024; 164:157-165. [PMID: 37458305 DOI: 10.1002/ijgo.14989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 12/18/2023]
Abstract
OBJECTIVE Pregnancy, a nutritionally demanding situation in terms of macro- and micronutrient supply owing to heightened maternal, placental, and fetal needs, significantly affects thiamine reserves. Thiamine deficiency during pregnancy and the postpartum period, presenting with varied manifestations and outcomes, is a relatively common condition in our population. The study aimed to understand the various manifestations and outcomes of acute thiamine deficiency in pregnant and postpartum women, emphasizing the significance of early recognition and thiamine therapy to prevent serious complications during pregnancy and after childbirth. METHODS This prospective study conducted in a tertiary care center in North India enrolled consecutive pregnant and postpartum women presenting with clinical features consistent with thiamine deficiency disorders, such as thiamine deficiency-related neuropathy, high-output heart failure, heart failure with reduced ejection fraction, Wernicke's encephalopathy, gastric beriberi, and thiamine-responsive acute pulmonary hypertension. In addition to capturing medical history including drug intake, dietary consumption, and comorbidities, women underwent brief relevant clinical examinations and laboratory assessments, including whole-blood thiamine levels. Response to intravenous thiamine supplementation was also monitored. RESULTS Data of 31 women (12 pregnant, 19 postpartum) with a diagnosis of acute thiamine deficiency and a mean age of 28.88 ± 2.69 years were analyzed. The mean thiamine level was 1.28 ± 0.44 μg/dL with mean blood lactate of 3.46 ± 3.33. The most common presentation was gastric beriberi (n = 10), followed by paraparesis (n = 6), high-output heart failure (n = 6), acute pulmonary hypertension, heart failure with reduced ejection fraction (n = 3 each), and an acute confusional state (n = 2). All patients responded to thiamine challenge. CONCLUSION In the context of borderline thiamine status, particularly in our population with endemic thiamine deficiency and heightened demand for thiamine during pregnancy and the peripartum period, the deficiency can have varied and serious manifestations of dry and wet beriberi. Early recognition of the clinical features and thiamine therapy can be life-saving. There is a need for validated clinical criteria owing to the non-availability of thiamine testing in resource-limited settings.
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Affiliation(s)
- Sobia Nisar
- Department of Medicine, Government Medical College, Srinagar, India
| | - Ozaifa Kareem
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India
| | - Umar Muzaffer
- Department of Medicine, Government Medical College, Srinagar, India
| | - Masood Tanvir
- Department of Medicine, Government Medical College, Srinagar, India
| | - Mohd Ashraf Ganaie
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, India
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Pedroza-García KA, Careaga-Cárdenas G, Díaz-Galindo C, Quintanar JL, Hernández-Jasso I, Ramírez-Orozco RE. Bioactive role of vitamins as a key modulator of oxidative stress, cellular damage and comorbidities associated with spinal cord injury (SCI). Nutr Neurosci 2023; 26:1120-1137. [PMID: 36537581 DOI: 10.1080/1028415x.2022.2133842] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction: Spinal cord injury (SCI) cause significant disability and impact the quality of life of those affected by it. The nutritional status and diet are fundamental to diminish the progression of complications; vitamins modulate the inflammatory response and oxidative stress, promote blood-spinal cord barrier preservation and the prompt recovery of homeostasis. A deep knowledge of the benefits achieved from vitamins in patients with SCI are summarized. Information of dosage, time, and effects of vitamins in these patients are also displayed. Vitamins have been extensively investigated; however, more clinical trials are needed to clarify the scope of vitamin supplementation.Objective: The objective of this review was to offer relevant therapeutic information based on vitamins supplementation for SCI patients.Methods: Basic and clinical studies that have implemented the use of vitamins in SCI were considered. They were selected from the year 2000-2022 from three databases: PubMed, Science Direct and Google Scholar.Results: Consistent benefits in clinical trials were shown in those who were supplemented with vitamin D (prevents osteoporosis and improves physical performance variables), B3 (improves lipid profile) and B12 (neurological prophylaxis of chronic SCI damage) mainly. On the other hand, improvement related to neuroprotection, damage modulation (vitamin A) and its prophylaxis were associated to B complex vitamins supplementation; the studies who reported positive results are displayed in this review.Discussion: Physicians should become familiar with relevant information that can support conventional treatment in patients with SCI, such as the use of vitamins, a viable option that can improve outcomes in patients with this condition.
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Affiliation(s)
- Karina A Pedroza-García
- Departamento de Nutrición, Centro de Ciencias de la Salud, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Gabriela Careaga-Cárdenas
- Biomedical Research, Centro de Ciencias de la Salud, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Carmen Díaz-Galindo
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - J Luis Quintanar
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Irma Hernández-Jasso
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Ricardo E Ramírez-Orozco
- Departamento de Nutrición, Centro de Ciencias de la Salud, Universidad Autónoma de Aguascalientes, Aguascalientes, México
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Liao S, Han J, Jiang C, Zhou B, Jiang Z, Tang J, Ding W, Che Z, Lin H. HS-SPME-GC × GC/MS combined with multivariate statistics analysis to investigate the flavor formation mechanism of tank-fermented broad bean paste. Food Chem X 2022; 17:100556. [PMID: 36845488 PMCID: PMC9943836 DOI: 10.1016/j.fochx.2022.100556] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/15/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022] Open
Abstract
With the advancement of industrialization, tank fermentation technology is promising for Pixian broad bean paste. This study identified and analyzed the general physicochemical factors and volatile metabolites of fermented broad beans in a thermostatic fermenter. Headspace solid-phase microextraction (HS-SPME)-two-dimensional gas chromatography-mass spectrometry (GC × GC-MS) was applied to detect the volatile compounds in fermented broad beans, while metabolomics was used to explore their physicochemical characteristics and analyze the possible metabolic mechanism. A total of 184 different metabolites were detected, including 36 alcohols, 29 aldehydes, 26 esters, 21 ketones, 14 acids, 14 aromatic compounds, ten heterocycles, nine phenols, nine organonitrogen compounds, seven hydrocarbons, two ethers, and seven other types, which were annotated to various branch metabolic pathways of carbohydrate and amino acid metabolism. This study provides references for subsequent functional microorganism mining to improve the quality of the tank-fermented broad beans and upgrade the Pixian broad bean paste industry.
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Affiliation(s)
- Shiqi Liao
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Jinlin Han
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Chunyan Jiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Binbin Zhou
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Zhenju Jiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Jie Tang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Wenwu Ding
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China,Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Zhenming Che
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China,Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Hongbin Lin
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China,Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China,Corresponding author at: Xihua University, Chengdu 610039, China.
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Tao X, Shao Y, Xu D, Huang Y, Yu X, Zhong T, Wang L, Chung SK, Chen D, Yu L, Xiao Y. Dietary Patterns and Nutrient Intake in University Students of Macao: A Cross-Sectional Study. Nutrients 2022; 14:nu14173642. [PMID: 36079899 PMCID: PMC9460302 DOI: 10.3390/nu14173642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Nutritional status affects the health of the public and is one of the key factors influencing social-economic development. To date, little research on the nutritional status of the Macao university student population has been conducted. OBJECTIVES To identify and evaluate the dietary pattern and the nutritional intake among Macao university students. METHODS The Macao students were selected by the stratified cluster random sampling method. A semi-quantitative food frequency questionnaire was used to investigate food consumption. Data were analyzed through a t-test and factor analysis by using SPSS Version 24.0. RESULTS A total of 1230 questionnaires were distributed. From the respondents, 1067 (86.7%) were valid. In general, we identified three major dietary patterns in this population: (1) fruit and vegetable dietary pattern, characterized by abundant consumption of fruits and vegetables; (2) grain and high fat dietary pattern, characterized as high intakes of grains and animal foods; (3) high sugar dietary pattern, characterized by a large quantity of daily sugary drinks. The average daily intake of vitamin A, thiamine, calcium, and iodine were significantly lower than the Chinese Recommended Nutrient Intake (RNI) in the subjects. Conclusions: The dietary pattern of Macao students is similar to that of other Asians. Surprisingly, the daily intake of vitamin A, thiamine, calcium, and iodine by Macao university students is significantly lower than the Chinese RNI.
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Affiliation(s)
- Xiaoyu Tao
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Ying Shao
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Donghan Xu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Yunzhi Huang
- School of Education, Zhongshan Polytechnic, Zhongshan 528404, China
| | - Xi Yu
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Tian Zhong
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Ling Wang
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Sookja Kim Chung
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
- Dr. Neher’s Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Dong Chen
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Lili Yu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
- Correspondence: (L.Y.); (Y.X.)
| | - Ying Xiao
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
- Correspondence: (L.Y.); (Y.X.)
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Shelomi M. Thiamine (vitamin B1) as an insect repellent: a scoping review. BULLETIN OF ENTOMOLOGICAL RESEARCH 2022; 112:431-440. [PMID: 35199632 DOI: 10.1017/s0007485321001176] [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
While the desire for systemic repellents is high, ineffective repellents put one at risk of insect-vectored pathogens. Vitamin B1, or thiamine, has been touted as a systemic insect repellent since 1943, and denounced as an ineffective placebo for just as long. This paper presents a scoping review of 104 relevant case reports, research studies, and review articles to trace the evolution of this idea and identify an evidence-based, scientific consensus. Reports of thiamine's systemic repellency are primarily anecdotal and based on uncontrolled trials and/or used bite symptoms as a proxy for reduced biting. Controlled experiments on insect landing and feeding found no evidence of repellency. Of the 49 relevant review papers, 16 insect bite prevention guidelines, and 4 government documents, none after the 1990s claimed thiamine is a repellent. The findings of this review are that thiamine cannot repel arthropods in any dosage or route of administration. Due to limited available evidence, the possibility that thiamine reduces the subjective symptoms of insect bites cannot currently be ruled out. Unfortunately, many medical professionals and travelers today still believe thiamine may be effective despite the evidence stating otherwise. Continued promotion of debunked repellents on the commercial market poses a serious risk in countries with the endemic, mosquito-vectored disease.
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Affiliation(s)
- Matan Shelomi
- Department of Entomology, National Taiwan University, Taipei, Taiwan
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Micronutrient Deficiencies Presenting with Optic Disc Swelling Associated with or without Intracranial Hypertension: A Systematic Review. Nutrients 2022; 14:nu14153068. [PMID: 35893919 PMCID: PMC9331791 DOI: 10.3390/nu14153068] [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: 07/05/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
Idiopathic intracranial hypertension (IIH) is a neurological disorder characterised by optic disc swelling secondary to raised intracranial pressure (ICP) of unknown cause. Obesity is the most established and prevalent risk factor in developed countries. As obesogenic diets are high in calories and nutrient-poor, there may be associated nutritional deficiencies that contribute to the clinical presentation of IIH. Yet none, aside from iron deficiency, are currently included in the inclusion or exclusion criteria for the diagnosis of IIH. Our primary aim was to determine which micronutrient deficiencies, aside from iron deficiency, could present with optic disc swelling associated with or without intracranial hypertension that could potentially meet current IIH diagnostic criteria. To this end, we conducted a systematic search of articles published between 1 January 1980 and 18 December 2020 reporting cases of optic disc swelling associated with micronutrient deficiencies. In total, 65 cases met the eligibility criteria from initial searches: all were case reports and case series with a high risk of bias. Our findings suggest that patients with IIH or unexplained optic disc swelling ought to be screened, investigated, and treated for associated micronutrient deficiencies in vitamin A, B1 and B12; and weight loss interventions in IIH patients ought to promote better nutrition in addition to overall calorie restriction.
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The role of pancreas to improve hyperglycemia in STZ-induced diabetic rats by thiamine disulfide. Nutr Diabetes 2022; 12:32. [PMID: 35725834 PMCID: PMC9209469 DOI: 10.1038/s41387-022-00211-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/04/2022] [Accepted: 06/06/2022] [Indexed: 12/04/2022] Open
Abstract
Background The present study investigated the effect of thiamine disulfide (TD) on the pancreas in terms of hyperglycemia improvement and insulin sensitivity increase in diabetic male rats. We also aimed to study the function of Pdx1 (pancreatic and duodenal homeobox 1) and Glut2 (glucose transporter 2) genes in pancreatic tissue. Methods Type 1 diabetes was induced through injection of 60 mg/kg streptozotocin (STZ). The diabetic rats were divided into four groups, namely diabetic control (DC), diabetic treated with thiamine disulfide (D-TD), diabetic treated with insulin (D-insulin), and diabetic treated with TD and insulin (D-insulin+TD). The non-diabetic (NDC) and diabetic groups received a normal diet (14 weeks). Blood glucose level and body weight were measured weekly; insulin tolerance test (ITT) and glucagon tolerance test (GTT) were performed in the last month of the study. The level of serum insulin and glucagon were measured monthly and a hyperglycemic clamp (Insulin Infusion rate (IIR)) was done for all the groups. Pancreas tissue was isolated so that Pdx1and Glut2 genes expression could be measured. Results We observed that TD therapy decreased blood glucose level, ITT, and serum glucagon levels in comparison with those of the DC group; it also increased serum insulin levels, IIR, and expression of Pdx1 and Glut2 genes in comparison with those of the DC group. Conclusion Administration of TD could improve hyperglycemia in type 1 diabetic animals through improved pancreas function. Therefore, not only does TD have a significant effect on controlling and reducing hyperglycemia in diabetes, but it also has the potential to decrease the dose of insulin administration.
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Biological Properties of Vitamins of the B-Complex, Part 1: Vitamins B1, B2, B3, and B5. Nutrients 2022; 14:nu14030484. [PMID: 35276844 PMCID: PMC8839250 DOI: 10.3390/nu14030484] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
This review summarizes the current knowledge on essential vitamins B1, B2, B3, and B5. These B-complex vitamins must be taken from diet, with the exception of vitamin B3, that can also be synthetized from amino acid tryptophan. All of these vitamins are water soluble, which determines their main properties, namely: they are partly lost when food is washed or boiled since they migrate to the water; the requirement of membrane transporters for their permeation into the cells; and their safety since any excess is rapidly eliminated via the kidney. The therapeutic use of B-complex vitamins is mostly limited to hypovitaminoses or similar conditions, but, as they are generally very safe, they have also been examined in other pathological conditions. Nicotinic acid, a form of vitamin B3, is the only exception because it is a known hypolipidemic agent in gram doses. The article also sums up: (i) the current methods for detection of the vitamins of the B-complex in biological fluids; (ii) the food and other sources of these vitamins including the effect of common processing and storage methods on their content; and (iii) their physiological function.
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Brown K, Everwine M, Nieves J. A Case of Wernicke Encephalopathy Secondary to Anorexia Nervosa Complicated by Refeeding Syndrome and Takotsubo Cardiomyopathy. AMERICAN JOURNAL OF CASE REPORTS 2021; 22:e929891. [PMID: 33720925 PMCID: PMC7980084 DOI: 10.12659/ajcr.929891] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Patient: Female, 20-year-old Final Diagnosis: Anorexia nervosa • refeeding syndrome • takotsubo cardiomyopathy • Wernicke encephalopathy Symptoms: Altered mental status • lethargy • weight loss Medication: — Clinical Procedure: — Specialty: Critical Care Medicine
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Affiliation(s)
- Keith Brown
- Department of Internal Medicine, Rowan University School of Osteopathic Medicine at Jefferson Health New Jersey, Stratford, NJ, USA
| | - Matthew Everwine
- Department of Internal Medicine, Rowan University School of Osteopathic Medicine at Jefferson Health New Jersey, Stratford, NJ, USA
| | - Jose Nieves
- Department of Critical Care, Jefferson Health New Jersey, Washington Township, NJ, USA
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Pumpkin, Cauliflower and Broccoli as New Carriers of Thiamine Compounds for Food Fortification. Foods 2021; 10:foods10030578. [PMID: 33801931 PMCID: PMC7999783 DOI: 10.3390/foods10030578] [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: 01/22/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 12/24/2022] Open
Abstract
The aim of the study is to explore the possibility of vegetables being used as carriers of thiamine. The influence of carrier type (thiamine hydrochloride—TCh and thiamine pyrophosphate—TP) for the thiamine stability were investigated. Two varieties of pumpkin, Muscat and Hokkaido, as well as Cauliflower and Broccoli, were used as a matrix for the thiamine applied. The impregnated and freeze-dried vegetables were stored (230 days) with changing access to light (access to and restriction of light) and temperature (21 °C and 40 °C). The analyzed carriers were also used in the production of gnocchi dumplings. The content of thiamine was analyzed using the thiochromium method. In the study, consumer tests (n = 199) and sensory profiling were used to assess the impact of thiamine carriers on the sensory quality of gnocchi dumplings. It was found that the introduction of dried vegetables at the level of 30% allows for high sensory desirability of analyzed products, as well as suggesting the possibility of their frequent consumption. Such a product could potentially become an alternative to pork meat as a good source of thiamine. However, it should be noted that the thiamine losses may occur during the storage of dried vegetables and their culinary preparation.
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