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Zhu Y, Li R, Yan S, Chen X, Cen S, Xie S. Habitat- and lifestyle-dependent structural and functional characteristics of viruses in mangrove wetlands of different functional zonings. ENVIRONMENTAL RESEARCH 2024; 252:119070. [PMID: 38710431 DOI: 10.1016/j.envres.2024.119070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/24/2024] [Accepted: 04/30/2024] [Indexed: 05/08/2024]
Abstract
Mangrove wetlands, as one of the natural ecosystems with the most ecological services, have garnered widespread attention about their microbial driven biogeochemical cycling. Urbanization have led to different spatial patterns of environmental conditions and microbial communities in mangroves. However, viruses, as the pivotal drivers of biogeochemical cycling in mangroves, remain inadequately explored in terms of how their ecological potential and complex interactions with host respond to functional zonings. To address this knowledge gap, we conducted a comprehensive investigation on the structural and functional properties of temperate and lytic viruses in mangrove wetlands from different functional zonings by jointly using high-throughput sequencing, prokaryotic and viral metagenomics. Multiple environmental factors were found to significantly influence the taxonomic and functional composition, as well as lysogen-lysis decision-making of mangrove viruses. Furthermore, enriched auxiliary metabolic genes (AMGs) involved in methane, nitrogen and sulfur metabolism, and heavy metal resistance were unveiled in mangrove viruses, whose community composition was closely related to lifestyle and host. The virus-host pairs with different lifestyles were also discovered to react to environmental changes in different ways, which provided an empirical evidence for how virus and bacteria dynamics were specific to viral lifestyles in nature. This study expands our comprehension of the intricate interactions among virus, prokaryotic host and the environment in mangrove wetlands from multiple perspectives, including viral lifestyles, virus-host interactions, and habitat dependence. Importantly, it provides a new ecological perspective on how mangrove viruses are adapted to the stress posed by urbanization.
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Affiliation(s)
- Ying Zhu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Ruili Li
- School of Environment and Energy, Peking University, Shenzhen, 518055, China; Guangdong Mangrove Engineering Technology Research Center, Peking University, Shenzhen, 518055, China.
| | - Shuang Yan
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Xiuli Chen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Shipeng Cen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Shuguang Xie
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.
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Dang Y, Zhang T, Pidathala S, Wang G, Wang Y, Chen N, Song C, Lee CH, Zhang Z. Substrate and drug recognition mechanisms of SLC19A3. Cell Res 2024; 34:458-461. [PMID: 38503960 PMCID: PMC11143317 DOI: 10.1038/s41422-024-00951-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/05/2024] [Indexed: 03/21/2024] Open
Affiliation(s)
- Yu Dang
- State Key Laboratory of Membrane Biology, Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Tianyi Zhang
- School of Life Sciences, Peking University, Beijing, China
| | - Shabareesh Pidathala
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Guopeng Wang
- Cryo-EM Platform, School of Life Sciences, Peking University, Beijing, China
| | - Yijie Wang
- School of Life Sciences, Peking University, Beijing, China
| | - Nanhao Chen
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Chen Song
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
- Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Chia-Hsueh Lee
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Zhe Zhang
- State Key Laboratory of Membrane Biology, Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
- School of Life Sciences, Peking University, Beijing, China.
- Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
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3
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Li Y, Sun T, Chen J, Liu X, Fu R, Xue F, Liu W, Ju M, Dai X, Li H, Wang W, Chi Y, Li T, Shao S, Yang R, Chen Y, Zhang L. Metabolomics profile and machine learning prediction of treatment responses in immune thrombocytopenia: A prospective cohort study. Br J Haematol 2024; 204:2405-2417. [PMID: 38438130 DOI: 10.1111/bjh.19391] [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: 11/06/2023] [Revised: 02/06/2024] [Accepted: 02/25/2024] [Indexed: 03/06/2024]
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disease characterized by antibody-mediated platelet destruction and impaired platelet production. The mechanisms underlying ITP and biomarkers predicting the response of drug treatments are elusive. We performed a metabolomic profiling of bone marrow biopsy samples collected from ITP patients admission in a prospective study of the National Longitudinal Cohort of Hematological Diseases. Machine learning algorithms were conducted to discover novel biomarkers to predict ITP patient treatment responses. From the bone marrow biopsies of 91 ITP patients, we quantified a total of 4494 metabolites, including 1456 metabolites in the positive mode and 3038 metabolites in the negative mode. Metabolic patterns varied significantly between groups of newly diagnosed and chronic ITP, with a total of 876 differential metabolites involved in 181 unique metabolic pathways. Enrichment factors and p-values revealed the top metabolically enriched pathways to be sphingolipid metabolism, the sphingolipid signalling pathway, ubiquinone and other terpenoid-quinone biosynthesis, thiamine metabolism, tryptophan metabolism and cofactors biosynthesis, the phospholipase D signalling pathway and the phosphatidylinositol signalling system. Based on patient responses to five treatment options, we screened several metabolites using the Boruta algorithm and ranked their importance using the random forest algorithm. Lipids and their metabolism, including long-chain fatty acids, oxidized lipids, glycerophospholipids, phosphatidylcholine and phosphatidylethanolamine biosynthesis, helped differentiate drug treatment responses. In conclusion, this study revealed metabolic alterations associated with ITP in bone marrow supernatants and a potential biomarker predicting the response to ITP.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Ting Sun
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Jia Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Xiaofan Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Rongfeng Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Feng Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Wei Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Mankai Ju
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Xinyue Dai
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Huiyuan Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Wentian Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Ying Chi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Ting Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Shuai Shao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Renchi Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Yunfei Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Lei Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Gene Therapy for Blood Diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Du W, Lu L, Liu Y, Yan Y, La R, Wu Q, Xu J, Zhou X. The association between dietary vitamin B1 intake and constipation: a population-based study. BMC Gastroenterol 2024; 24:171. [PMID: 38760704 PMCID: PMC11100033 DOI: 10.1186/s12876-024-03255-2] [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] [Received: 10/27/2023] [Accepted: 05/03/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Numerous researches have indicated a correlation between the intake of dietary micronutrients and the occurrence of constipation. Nevertheless, the correlation between constipation and vitamin B1 remains uninvestigated. The main aim of this research was to examine the association between chronic constipation and the consumption of vitamin B1 in the diet among adult participants of the National Health and Nutrition Examination Survey (NHANES). METHODS This study used data from the NHANES, a survey on health and nutrition conducted between 2005 and 2010. The respondents' dietary information was gathered by utilizing the 24-hour dietary records. Various statistical analyses, such as multiple logistic regression, subgroup analysis, and curve-fitting analysis, were employed to investigate the correlation between dietary intake of vitamin B1 and chronic constipation. RESULTS In the trial, there were 10,371 participants, out of which 1,123 individuals (10.8%) were identified as having chronic constipation. Fully adjusted multiple logistic regression analyses showed that increasing dietary intake of vitamin B1 (OR = 0.87, 95% CI: 0.77-0.99) was significantly associated with a reduced risk of constipation. Following adjustment for multiple variables in Model 3, the odds ratio (OR) and 95% confidence interval (CI) for the third tertile, in comparison to the first tertile (reference group), was 0.80 (0.65, 0.99). In addition, subgroup analyses and interaction tests showed a significant inverse association between vitamin B1 intake and the prevalence of constipation, especially among men, non-hypertensive, and non-diabetic individuals (all P-values less than 0.05). CONCLUSION This research uncovered an inverse correlation between the consumption of vitamin B1 in the diet and the occurrence of chronic constipation. One potential explanation for this phenomenon is that the consumption of vitamin B1 in one's diet is linked to the softening of stools and an augmented occurrence of colonic peristalsis. Additional extensive prospective research is required to thoroughly examine the significance of thiamine in long-term constipation.
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Affiliation(s)
- Wenyi Du
- The Affiliated Stomatological Hospital of Soochow University, Suzhou Stomatological Hospital, Suzhou, Jiangsu, China
- Department of General Surgery, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi Medical Center, Wuxi, Jiangsu, China
| | - Lingchen Lu
- Department of Pediatric Surgery, Maternal and Child Health Care Hospital of Kunshan, Suzhou, Jiangsu, China
| | - Yuxuan Liu
- The Affiliated Stomatological Hospital of Soochow University, Suzhou Stomatological Hospital, Suzhou, Jiangsu, China
| | - Yuxin Yan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Institute of Orthopedics at Soochow University, Suzhou, Jiangsu, China
| | - Rui La
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Institute of Orthopedics at Soochow University, Suzhou, Jiangsu, China
| | - Qian Wu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Institute of Orthopedics at Soochow University, Suzhou, Jiangsu, China.
- Research Institute of Clinical Medicine, Jeonbuk National University Medical School, Jeonju, Korea.
| | - Jie Xu
- The Affiliated Stomatological Hospital of Soochow University, Suzhou Stomatological Hospital, Suzhou, Jiangsu, China.
| | - Xiaojun Zhou
- The Affiliated Stomatological Hospital of Soochow University, Suzhou Stomatological Hospital, Suzhou, Jiangsu, China.
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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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Todisco V, Fridolfsson E, Axén C, Dahlgren E, Ejsmond MJ, Hauber MM, Hindar K, Tibblin P, Zöttl M, Söderberg L, Hylander S. Thiamin dynamics during the adult life cycle of Atlantic salmon (Salmo salar). JOURNAL OF FISH BIOLOGY 2024; 104:807-824. [PMID: 37823583 DOI: 10.1111/jfb.15584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 09/05/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
Thiamin is an essential water-soluble B vitamin known for its wide range of metabolic functions and antioxidant properties. Over the past decades, reproductive failures induced by thiamin deficiency have been observed in several salmonid species worldwide, but it is unclear why this micronutrient deficiency arises. Few studies have compared thiamin concentrations in systems of salmonid populations with or without documented thiamin deficiency. Moreover, it is not well known whether and how thiamin concentration changes during the marine feeding phase and the spawning migration. Therefore, samples of Atlantic salmon (Salmo salar) were collected when actively feeding in the open Baltic Sea, after the sea migration to natal rivers, after river migration, and during the spawning period. To compare populations of Baltic salmon with systems without documented thiamin deficiency, a population of landlocked salmon located in Lake Vänern (Sweden) was sampled as well as salmon from Norwegian rivers draining into the North Atlantic Ocean. Results showed the highest mean thiamin concentrations in Lake Vänern salmon, followed by North Atlantic, and the lowest in Baltic populations. Therefore, salmon in the Baltic Sea seem to be consistently more constrained by thiamin than those in other systems. Condition factor and body length had little to no effect on thiamin concentrations in all systems, suggesting that there is no relation between the body condition of salmon and thiamin deficiency. In our large spatiotemporal comparison of salmon populations, thiamin concentrations declined toward spawning in all studied systems, suggesting that the reduction in thiamin concentration arises as a natural consequence of starvation rather than to be related to thiamin deficiency in the system. These results suggest that factors affecting accumulation during the marine feeding phase are key for understanding the thiamin deficiency in salmonids.
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Affiliation(s)
- Vittoria Todisco
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
| | - Emil Fridolfsson
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
| | - Charlotte Axén
- Section for Fish, National Veterinary Institute (SVA), Uppsala, Sweden
| | - Elin Dahlgren
- Institution of Aquatic Resources, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Maciej J Ejsmond
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
- Institute of Environmental Science, Jagiellonian University, Cracow, Poland
| | - Marc M Hauber
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
| | - Kjetil Hindar
- Norwegian Institute for Nature Research (NINA), Trondheim, Norway
| | - Petter Tibblin
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
| | - Markus Zöttl
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
| | - Linda Söderberg
- Institution of Aquatic Resources, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Samuel Hylander
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
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Chung YH, Chen TC, Yang WJ, Chen SZ, Chang JM, Hsieh WY, Hsieh MH. Ectopic expression of a bacterial thiamin monophosphate kinase enhances vitamin B1 biosynthesis in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1330-1343. [PMID: 37996996 DOI: 10.1111/tpj.16563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023]
Abstract
Plants and bacteria have distinct pathways to synthesize the bioactive vitamin B1 thiamin diphosphate (TDP). In plants, thiamin monophosphate (TMP) synthesized in the TDP biosynthetic pathway is first converted to thiamin by a phosphatase, which is then pyrophosphorylated to TDP. In contrast, bacteria use a TMP kinase encoded by ThiL to phosphorylate TMP to TDP directly. The Arabidopsis THIAMIN REQUIRING2 (TH2)-encoded phosphatase is involved in TDP biosynthesis. The chlorotic th2 mutants have high TMP and low thiamin and TDP. Ectopic expression of Escherichia coli ThiL and ThiL-GFP rescued the th2-3 mutant, suggesting that the bacterial TMP kinase could directly convert TMP into TDP in Arabidopsis. These results provide direct evidence that the chlorotic phenotype of th2-3 is caused by TDP rather than thiamin deficiency. Transgenic Arabidopsis harboring engineered ThiL-GFP targeting to the cytosol, chloroplast, mitochondrion, or nucleus accumulated higher TDP than the wild type (WT). Ectopic expression of E. coli ThiL driven by the UBIQUITIN (UBI) promoter or an endosperm-specific GLUTELIN1 (GT1) promoter also enhanced TDP biosynthesis in rice. The pUBI:ThiL transgenic rice accumulated more TDP and total vitamin B1 in the leaves, and the pGT1:ThiL transgenic lines had higher TDP and total vitamin B1 in the seeds than the WT. Total vitamin B1 only increased by approximately 25-30% in the polished and unpolished seeds of the pGT1:ThiL transgenic rice compared to the WT. Nevertheless, these results suggest that genetic engineering of a bacterial vitamin B1 biosynthetic gene downstream of TMP can enhance vitamin B1 production in rice.
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Affiliation(s)
- Yi-Hsin Chung
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Ting-Chieh Chen
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Wen-Ju Yang
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Soon-Ziet Chen
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Jia-Ming Chang
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Wei-Yu Hsieh
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Ming-Hsiun Hsieh
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan
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8
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Ma Y, Wang X, Gou X, Wu X. Identification and characterization of an endogenous biomarker of the renal vectorial transport (OCT2-MATE1). Biopharm Drug Dispos 2024; 45:43-57. [PMID: 38305087 DOI: 10.1002/bdd.2382] [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: 08/31/2023] [Revised: 11/29/2023] [Accepted: 01/08/2024] [Indexed: 02/03/2024]
Abstract
The renal tubular organic cation transporter 2 (OCT2) and multidrug and toxin extrusion protein 1 (MATE1) mediate the vectorial elimination of many drugs and toxins from the kidney, and endogenous biomarkers for vectorial transport (OCT2-MATE1) would allow more accurate drug dosing and help to characterize drug-drug interactions and toxicity. Human serum uptake in OCT2-overexpressing cells and metabolomics analysis were carried out. Potential biomarkers were verified in vitro and in vivo. The specificity of biomarkers was validated in renal transporter overexpressing cells and the sensitivity was investigated by Km . The results showed that the uptake of thiamine, histamine, and 5-hydroxytryptamine was significantly increased in OCT2-overexpressing cells. In vitro assays confirmed that thiamine, histamine, and 5-hydroxytryptamine were substrates of both OCT2 and MATE1. In vivo measurements indicated that the serum thiamine level was increased significantly in the presence of the rOCT2 inhibitor cimetidine, and the level in renal tissue was increased significantly by the rMATE1 inhibitor pyrimethamine. There were no significant changes in the uptake or efflux of thiamine in cell lines overexpressed OAT1, OAT2, OAT3, MRP4, organic anion transporting polypeptide 4C1, P-gp, peptide transporter 2, urate transporter 1, and OAT4. The Km for thiamine with OCT2 and MATE1 were 71.2 and 10.8 μM, respectively. In addition, the cumulative excretion of thiamine at 2 and 4 h was strongly correlated with metformin excretion (R2 > 0.6). Thus, thiamine is preferentially secreted by the OCT2 and MATE1 in renal tubules and can provide a reference value for evaluating the function of the renal tubular OCT2-MATE1.
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Affiliation(s)
- Yanrong Ma
- The First Clinical Medical School, Lanzhou University, Lanzhou, China
| | - Xinyi Wang
- The First Clinical Medical School, Lanzhou University, Lanzhou, China
| | - Xueyan Gou
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Xinan Wu
- The First Clinical Medical School, Lanzhou University, Lanzhou, China
- School of Pharmacy, Lanzhou University, Lanzhou, China
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9
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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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10
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Ali MA, Abu Damir H, Adem MA, Ali OM, Amir N, Shah AAM, Al Muhairi SSM, Al Abdouli KOS, Khawaja JR, Fagieri TA, Adam A, Elkhouly AA, Al Marri ZJ, Jamali M, Murphy D, Adem A. Effects of long-term dehydration on stress markers, blood parameters, and tissue morphology in the dromedary camel ( Camelus dromedarius). Front Vet Sci 2023; 10:1236425. [PMID: 38116506 PMCID: PMC10728728 DOI: 10.3389/fvets.2023.1236425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/16/2023] [Indexed: 12/21/2023] Open
Abstract
Introduction Dromedary camels robustly withstand dehydration, and the rough desert environment but the adaptation mechanisms are not well understood. One of these mechanisms is that the dromedary camel increases its body temperature to reduce the process of evaporative cooling during the hot weather. Stress in general, has deleterious effects in the body. In this study, we sought to determine the effects of dehydration and rehydration on stress parameters in the dromedary camels and how it pacifies these effects. Methods Nineteen male camels were randomly divided into control, dehydrated and rehydrated groups, and fed alfalfa hay ad-libitum. The dehydrated and rehydrated groups were water-restricted for 20 days after which the rehydrated camels were provided with water for 72 h. The control and dehydrated camels were slaughtered at day 20 from the start of experiment whereas the rehydrated group was killed 72 h later. Many biochemical, hematological histopathological parameters and gene analysis were performed in relevant tissues collected including blood, plasma, and tissues. Results and discussion It was observed that severely dehydrated camels lost body weight, passed very hard feces, few drops of concentrated urine, and were slightly stressed as reflected behaviorally by loss of appetite. Physiologically, the stress of dehydration elicited modulation of plasma stress hormones for water preservation and energy supply. Our results showed significant increase in cortisol, norepinephrine and dopamine, and significant decrease in epinephrine and serotonin. The significant increase in malondialdehyde was accompanied with significant increase in antioxidants (glutathione, retinol, thiamin, tocopherol) to provide tissue protection from oxidative stress. The physiological blood changes observed during dehydration serve different purposes and were quickly restored to normality by rehydration. The dehydrated/rehydrated camels showed reduced hump size and serous atrophy of perirenal and epicardial fat. The latter changes were accompanied by significantly increased expression of genes encoding proteins for energy production (ANGPTL4, ACSBG1) from fat and significantly decreased expression of genes (THRSP; FADS 1&2) encoding proteins enhancing energy expenditure. This process is vital for camel survival in the desert. Dehydration induced no major effects in the vital organs. Only minor degenerative changes were observed in hepatic and renal cells, physiological cardiomyocyte hypertrophy in heart and follicular hyperplasia in splenic but lipidosis was not depicted in liver hepatocytes. Ketone bodies were not smelled in urine, sweat and breathing of dehydrated animals supporting the previous finding that the ß hydroxybutyrate dehydrogenase, a key enzyme in ketone body formation, is low in the camel liver and rumen. Rehydration restored most of blood and tissues to normal or near normal. In conclusion, camels are adapted to combat dehydration stress and anorexia by increasing anti-stressors and modulating genes involved in fat metabolism.
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Affiliation(s)
- Mahmoud A Ali
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Hassan Abu Damir
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Muna A Adem
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Osman M Ali
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Naheed Amir
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Asma A M Shah
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Salama S M Al Muhairi
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Khaled O S Al Abdouli
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Javed R Khawaja
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Tareq A Fagieri
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Abdelnasir Adam
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Aboubakr A Elkhouly
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Zhaya J Al Marri
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Mohamed Jamali
- Department of Biochemistry, Khawarizmi College, Al-Ain, United Arab Emirates
| | - David Murphy
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Abdu Adem
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
- Department of Pharmacology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
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11
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Xu J, Zhang Y, Fang XH, Liu Y, Huang YB, Ke ZL, Wang Y, Zhang YF, Zhang Y, Zhou JH, Su HT, Chen N, Liu YL. The oral bacterial microbiota facilitates the stratification for ulcerative colitis patients with oral ulcers. Ann Clin Microbiol Antimicrob 2023; 22:99. [PMID: 37946238 PMCID: PMC10633958 DOI: 10.1186/s12941-023-00646-3] [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] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Clinically, a large part of inflammatory bowel disease (IBD) patients is complicated by oral lesions. Although previous studies proved oral microbial dysbiosis in IBD patients, the bacterial community in the gastrointestinal (GI) tract of those IBD patients combined with oral ulcers has not been profiled yet. METHODS In this study, we enrolled four groups of subjects, including healthy controls (CON), oral ulcer patients (OU), and ulcerative colitis patients with (UC_OU) and without (UC) oral ulcers. Bio-samples from three GI niches containing salivary, buccal, and fecal samples, were collected for 16S rRNA V3-V4 region sequencing. Bacterial abundance and related bio-functions were compared, and data showed that the fecal microbiota was more potent than salivary and buccal microbes in shaping the host immune system. ~ 22 UC and 10 UC_OU 5-aminosalicylate (5-ASA) routine treated patients were followed-up for six months; according to their treatment response (a decrease in the endoscopic Mayo score), they were further sub-grouped as responding and non-responding patients. RESULTS We found those UC patients complicated with oral ulcers presented weaker treatment response, and three oral bacterial genera, i.e., Fusobacterium, Oribacterium, and Campylobacter, might be connected with treatment responding. Additionally, the salivary microbiome could be an indicator of treatment responding in 5-ASA routine treatment rather than buccal or fecal ones. CONCLUSIONS The fecal microbiota had a strong effect on the host's immune indices, while the oral bacterial microbiota could help stratification for ulcerative colitis patients with oral ulcers. Additionally, the oral microbiota had the potential role in reflecting the treatment response of UC patients. Three oral bacteria genera (Fusobacterium, Oribacterium, and Campylobacter) might be involved in UC patients with oral ulcers lacking treatment responses, and monitoring oral microbiota may be meaningful in assessing the therapeutic response in UC patients.
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Affiliation(s)
- Jun Xu
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yu Zhang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Xiao-Hui Fang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yun Liu
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yi-Bo Huang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Zi-Liang Ke
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yang Wang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yi-Fan Zhang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yang Zhang
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Jian-Hua Zhou
- Institute of Clinical Molecular Biology and Central Laboratory, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Hui-Ting Su
- Institute of Clinical Molecular Biology and Central Laboratory, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Ning Chen
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yu-Lan Liu
- Department of Gastroenterology, Peking University People's Hospital, No.11, Xizhimen South Street, Xicheng District, Beijing, 100044, China.
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China.
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Bozic I, Lavrnja I. Thiamine and benfotiamine: Focus on their therapeutic potential. Heliyon 2023; 9:e21839. [PMID: 38034619 PMCID: PMC10682628 DOI: 10.1016/j.heliyon.2023.e21839] [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: 05/30/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Thiamine, also known as vitamin B1, is an essential nutrient that plays a crucial role in energy metabolism and overall health. It is a water-soluble vitamin that plays an important role in the conversion of carbohydrates into energy in the body. Thiamine is essential for the proper functioning of the nervous system, heart and muscles. Thiamine deficiency is a life-threatening disease that leads to various disorders and lesions in the nerves and brain, at least in vertebrates. Several thiamine precursors with higher bioavailability have been developed to compensate for thiamine deficiency, including benfotiamine. Benfotiamine is more bioavailable and has higher tissue penetration than thiamine. Studies have shown its antioxidant and anti-inflammatory potential in activated immune and glial cells. It also improves complications observed in type 2 diabetes and has beneficial effects in mouse models of neurodegenerative disease. Benfotiamine represents an off-the-shelf agent used to support nerve health, promote healthy aging and support glucose metabolism. Accordingly, the present review aimed to provide an overview of the neuroprotective effects of thiamine/benfotiamine in the context of inflammation and oxidative stress.
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Affiliation(s)
- Iva Bozic
- Institute for Biological Research "Sinisa Stankovic"- National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Irena Lavrnja
- Institute for Biological Research "Sinisa Stankovic"- National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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13
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Aboragah AA, Sherlock DN, Wichasit N, Mauck J, Loor JJ. Intermediate metabolites and molecular correlates of one‑carbon and nutrient metabolism differ in tissues from Holstein fetuses. Res Vet Sci 2023; 164:104988. [PMID: 37678126 DOI: 10.1016/j.rvsc.2023.104988] [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: 04/27/2023] [Revised: 08/11/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023]
Abstract
Methionine and folate cycles along with transsulfuration comprise the one‑carbon metabolism (OCM) pathway. Amino acids and other nutrients feed into OCM, which is central to cellular function. mRNA abundance, proteins (Western blotting), and metabolites (GC-MC) associated with OCM were used to characterize these mechanisms in fetal tissues. Liver, whole intestine, and semitendinosus muscle were harvested from fetuses in 6 multiparous Holstein cows (37 kg milk/d, 100 d gestation). Data were analyzed using PROC MIXED (SAS 9.4). Protein abundance of BHMT was greatest (P < 0.01) in liver suggesting active remethylation of homocysteine to methionine. This idea was supported by the greater (P < 0.05) mRNA of CBS, BHMT, MTR, SHMT1, and MAT1A (encoding OCM enzymes) in liver. The antioxidant protein GPX3 had greatest (P < 0.05) abundance in liver, whereas the glutathione-transferase GSTM1 was 5-fold greater (P < 0.05) in intestine than liver and muscle. Greatest concentrations of glycine, serine, and taurine along with lower cysteine underscored the relevance of OCM in fetal liver. Phosphoethanolamine concentration was greatest (4-fold, P < 0.05) in intestine and along with the greatest (P < 0.05) mRNA of SLC44A1 (choline transporter), CHKA, and CEPT1 underscored the importance of the CDP-choline pathway. Greatest (P < 0.05) mRNA of PPARA, CPT1A, and HMGCS2 along with lower PCK1 in liver highlighted a potential reliance on fatty acid oxidation. In contrast, greater (P < 0.05) concentration of myo-inositol in muscle and intestine suggested both tissues rely on glucose as main source of energy. Future research should address how environmental inputs such as maternal nutrition alter these pathways in fetal tissues and their phenotypic outcomes.
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Affiliation(s)
- Ahmad A Aboragah
- Department of Animal Sciences, University of Illinois, Urbana 61801, USA; Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Nithat Wichasit
- Department of Animal Sciences, University of Illinois, Urbana 61801, USA; Department of Agricultural Science, Naresuan University, Phitsanulok 65000, Thailand
| | - John Mauck
- Department of Animal Sciences, University of Illinois, Urbana 61801, USA
| | - Juan J Loor
- Department of Animal Sciences, University of Illinois, Urbana 61801, USA; Division of Nutritional Sciences, University of Illinois, Urbana 61801, USA.
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14
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Lu J, Yao T, Yu G, Ye L. Adaptive response of triploid Fujian oyster (Crassostrea angulata) to nanoplastic stress: Insights from physiological, metabolomic, and microbial community analyses. CHEMOSPHERE 2023; 341:140027. [PMID: 37659513 DOI: 10.1016/j.chemosphere.2023.140027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/26/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Triploid Fujian oyster (Crassostrea angulata) is crucial to aquaculture and coastal ecosystems because of its accelerated growth and heightened resilience against environmental stressors. In light of the increasing prevalence of nanoplastic pollution in the ocean, understanding its potential impact on this organism, particularly its adaptive responses, is of paramount importance. Despite this, the effects of nanoplastic pollution on the physiology of C. angulata remain largely unexplored. In this study, we explored the responses of triploid Fujian oysters to nanoplastic stress during a 14-day exposure period, employing an integrative methodology that included physiological, metabolomic, and 16S rRNA sequencing analyses. Our results demonstrate that the oysters exhibit a strong adaptive response to nanoplastic exposure, characterized by alterations in enzyme activity, metabolic pathways, and microbial community composition, indicative of an adaptive recovery state as opposed to a disordered state. Oysters subjected to elevated nanoplastic levels exhibited adaptive responses primarily by boosting the activity of the antioxidant enzyme catalase and elevating the levels of antioxidants such as adenosine, 3-(4-hydroxyphenyl)pyruvate, D-sorbitol, d-mannose, and unsaturated fatty acids, as well as the functional amino acids l-proline and l-lysine. Nanoplastic treatment also resulted in increased activity of succinate dehydrogenase, a key component of energy metabolism, and increased contents of intermediate metabolites or products of energy metabolism, such as adenosine monophosphate, adenosine, guanosine, creatine, and thiamine. Nanoplastic treatment led to an increase in the abundance of certain advantageous genera of gut bacteria, specifically Phaeobacter and Nautella. The observed adaptive response of triploid Fujian oysters to nanoplastic stress provides valuable insights into the mechanisms underpinning resilience in marine bivalves.
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Affiliation(s)
- Jie Lu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China.
| | - Tuo Yao
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
| | - Gang Yu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
| | - Lingtong Ye
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China.
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15
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Mrowicka M, Mrowicki J, Dragan G, Majsterek I. The importance of thiamine (vitamin B1) in humans. Biosci Rep 2023; 43:BSR20230374. [PMID: 37389565 PMCID: PMC10568373 DOI: 10.1042/bsr20230374] [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: 03/02/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 07/01/2023] Open
Abstract
Thiamine (thiamin, B1) is a vitamin necessary for proper cell function. It exists in a free form as a thiamine, or as a mono-, di- or triphosphate. Thiamine plays a special role in the body as a coenzyme necessary for the metabolism of carbohydrates, fats and proteins. In addition, it participates in the cellular respiration and oxidation of fatty acids: in malnourished people, high doses of glucose result in acute thiamine deficiency. It also participates in energy production in the mitochondria and protein synthesis. In addition, it is also needed to ensure the proper functioning of the central and peripheral nervous system, where it is involved in neurotransmitter synthesis. Its deficiency leads to mitochondrial dysfunction, lactate and pyruvate accumulation, and consequently to focal thalamic degeneration, manifested as Wernicke's encephalopathy or Wernicke-Korsakoff syndrome. It can also lead to severe or even fatal neurologic and cardiovascular complications, including heart failure, neuropathy leading to ataxia and paralysis, confusion, or delirium. The most common risk factor for thiamine deficiency is alcohol abuse. This paper presents current knowledge of the biological functions of thiamine, its antioxidant properties, and the effects of its deficiency in the body.
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Affiliation(s)
- Małgorzata Mrowicka
- Małgorzata Mrowicka, Jerzy Mrowicki, Grzegorz Dragan, Ireneusz Majsterek, Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Mazowiecka 5, 92-215 Lodz, Poland
| | - Jerzy Mrowicki
- Małgorzata Mrowicka, Jerzy Mrowicki, Grzegorz Dragan, Ireneusz Majsterek, Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Mazowiecka 5, 92-215 Lodz, Poland
| | - Grzegorz Dragan
- Małgorzata Mrowicka, Jerzy Mrowicki, Grzegorz Dragan, Ireneusz Majsterek, Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Mazowiecka 5, 92-215 Lodz, Poland
| | - Ireneusz Majsterek
- Małgorzata Mrowicka, Jerzy Mrowicki, Grzegorz Dragan, Ireneusz Majsterek, Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Mazowiecka 5, 92-215 Lodz, Poland
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16
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Knebusch N, Mansour M, Vazquez S, Coss-Bu JA. Macronutrient and Micronutrient Intake in Children with Lung Disease. Nutrients 2023; 15:4142. [PMID: 37836425 PMCID: PMC10574027 DOI: 10.3390/nu15194142] [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: 08/23/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
This review article aims to summarize the literature findings regarding the role of micronutrients in children with lung disease. The nutritional and respiratory statuses of critically ill children are interrelated, and malnutrition is commonly associated with respiratory failure. The most recent nutrition support guidelines for critically ill children have recommended an adequate macronutrient intake in the first week of admission due to its association with good outcomes. In children with lung disease, it is important not to exceed the proportion of carbohydrates in the diet to avoid increased carbon dioxide production and increased work of breathing, which potentially could delay the weaning of the ventilator. Indirect calorimetry can guide the process of estimating adequate caloric intake and adjusting the proportion of carbohydrates in the diet based on the results of the respiratory quotient. Micronutrients, including vitamins, trace elements, and others, have been shown to play a role in the structure and function of the immune system, antioxidant properties, and the production of antimicrobial proteins supporting the defense mechanisms against infections. Sufficient levels of micronutrients and adequate supplementation have been associated with better outcomes in children with lung diseases, including pneumonia, cystic fibrosis, asthma, bronchiolitis, and acute respiratory failure.
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Affiliation(s)
- Nicole Knebusch
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; (N.K.); (M.M.); (S.V.)
- Texas Children’s Hospital, Houston, TX 77030, USA
| | - Marwa Mansour
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; (N.K.); (M.M.); (S.V.)
- Texas Children’s Hospital, Houston, TX 77030, USA
| | - Stephanie Vazquez
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; (N.K.); (M.M.); (S.V.)
- Texas Children’s Hospital, Houston, TX 77030, USA
| | - Jorge A. Coss-Bu
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; (N.K.); (M.M.); (S.V.)
- Texas Children’s Hospital, Houston, TX 77030, USA
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17
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Khan MU, Mubeen M, Chohan HK, Jawed S, Jamal A, Qamar JA, Chohan MK, Siddiqui AA, Anwar A, Hashmi AA. Correlation of Fasting Blood Sugar and Glycated Hemoglobin (HbA1c) With Thiamine Levels in Diabetic Patients. Cureus 2023; 15:e46178. [PMID: 37905298 PMCID: PMC10613325 DOI: 10.7759/cureus.46178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2023] [Indexed: 11/02/2023] Open
Abstract
Introduction It has been discovered that low levels of thiamine reserves in the body are related to diabetes mellitus (DM) because thiamine directly influences carbohydrate metabolism. Therefore, the purpose of this study was to assess several metabolic variables and blood thiamine levels in patients with type 1 and type 2 DM and compare them with those in a control group of healthy individuals. Methods This case-control study was conducted at multiple diabetic outpatient centers in Karachi. A total of 90 participants, who were divided into three groups, each containing 30 individuals, were chosen using a convenient non-probability sampling technique. Group A served as the control group and consisted of healthy, non-diabetic individuals. Groups B and C contained subjects with type 1 and type 2 DM, respectively. Descriptive analysis was reported as mean standard deviation, whereas gender and comorbidities were expressed as frequencies and percentages. The chi-square test and Pearson's correlation coefficient were used to determine the associations of the variables with type 1 DM, type 2 DM, and controls. Results The study results revealed statistically significant differences between controls, type 1 and type 2 DM, in the means of blood glucose levels and all lipid profiles, such as glycated hemoglobin (HbA1c), fasting blood sugar (FBS), random blood sugar (RBS), serum thiamine, triglycerides (p < 0.001), high-density lipoprotein (HDL) (p = 0.014), and total cholesterol (p = 0.013). Furthermore, it was shown that among the control group, type 1 and type 2 DM, HbA1c, and FBS were insignificantly correlated with thiamine levels, whereas the HbA1c and FBS of the combined diabetic groups were significantly correlated with the thiamine level (r = 0.465, p < 0.001) and (r = 0.360, p = 0.005), respectively, where 'r' is the Pearson correlation coefficient. Additionally, HbA1c and FBS in the combined three groups were significantly correlated with the thiamine level (r = -0.626, p < 0.001) and (r = -0.561, p < 0.001), respectively. Conclusion This study concluded that patients with type 1 and type 2 DM had significantly higher levels of FBS, RBS, HbA1c, triglycerides, and total cholesterol than controls. Furthermore, both type 1 and type 2 DM patients' serum thiamine and HDL levels were observed to be considerably lower than those of controls. Additionally, among both types of DM and controls, there was a strong correlation between FBS and HbA1c. Therefore, we recommend that serum thiamine levels be routinely monitored in diabetic patients, and thiamine supplementation should be considered to avoid complications, especially vascular complications of DM.
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Affiliation(s)
| | - Muhammad Mubeen
- Internal Medicine, Dow University of Health Sciences, Karachi, PAK
| | | | - Sidra Jawed
- Internal Medicine, Jinnah Medical and Dental College, Karachi, PAK
| | - Aisha Jamal
- Internal Medicine, Army Medical College, Rawalpindi, PAK
| | | | | | | | - Adnan Anwar
- Physiology, Hamdard College of Medicine and Dentistry, Karachi, PAK
- Internal Medicine, Essa General Hospital, Karachi, PAK
| | - Atif A Hashmi
- Pathology, Liaquat National Hospital and Medical College, Karachi, PAK
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18
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Wen H, Niu X, Zhao R, Wang Q, Sun N, Ma L, Li Y, Zhang W. Association of vitamin B1 with cardiovascular diseases, all-cause and cardiovascular mortality in US adults. Front Nutr 2023; 10:1175961. [PMID: 37720374 PMCID: PMC10502219 DOI: 10.3389/fnut.2023.1175961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/14/2023] [Indexed: 09/19/2023] Open
Abstract
Background The correlation between dietary vitamin B1 intake and cardiovascular diseases, as well as the all-cause and cardiovascular-associated mortality, is not well known. A large-scale data pool was used to examine the aforementioned correlations of Vitamin B1. Methods This paper analyzed the dietary data from the survey conducted by National Health and Nutrition Examination (NHANES; 1999-2018). The correlation of vitamin B1 intake in each quartile with cardiovascular diseases such as hypertension, coronary heart disease, myocardial infarction and heart failure was analyzed using multivariate logistic regression models. The hazard ratios for dietary vitamin B1 intake in each quartile, along with all-cause and cardiovascular-associated mortality, were performed using multivariate cox regression analysis, setting the lowest quartile (Q1) as a reference. The restricted cubic spline (RCS) method was used to study the nonlinear relationship. Subgroup stratification and sensitivity analyses were used to further investigate the association between them. Results The study enrolled 27,958 subjects (with a mean follow-up time of 9.11 years). After multivariate adjustment, dietary vitamin B1 intake was significantly associated with hypertension, heart failure and cardiovascular mortality, with the most significant association in quartile 4 (Q4) of vitamin B1 intake. The results of the restricted cubic spline showed that vitamin B1 intake was nonlinearly associated with hypertension, whereas it was linearly associated with heart failure and cardiovascular mortality. Meanwhile, a dose-response correlation was observed, indicating that increased vitamin B1 intake leads to reduced risk of both cardiovascular prevalence and mortality. The stratified analysis showed that the correlation between age ≥ 50 years, overweight, smoking history, drinking history and dyslipidemia were more significant in male patients. The associations remained similar in the sensitivity analyses. Conclusion The large NHANES-based studies indicate a gradual trend toward decreasing the risk of hypertension and heart failure prevalence and cardiovascular mortality with increasing dietary vitamin B1 intake. This association is especially significant in elderly-aged men, overweight individuals, smokers, drinkers, and dyslipidemia patients.
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Affiliation(s)
- He Wen
- The First Affiliated Hospital, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Xiaona Niu
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Ran Zhao
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Qiuhe Wang
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Nan Sun
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Le Ma
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi’an Jiaotong University), Ministry of Education of China, Xi’an, China
| | - Yan Li
- Department of Cardiology, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Wei Zhang
- The First Affiliated Hospital, Xi’an Jiaotong University Health Science Center, Xi’an, China
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Peng C, Jiang Y, Ou X, Liao L, Yang C, Zhou Q, Wei Y, Chang L, Fan X. Novel XIAP mutation with early-onset Crohn's disease complicated with acute heart failure: a case report. BMC Cardiovasc Disord 2023; 23:368. [PMID: 37479963 PMCID: PMC10362603 DOI: 10.1186/s12872-023-03386-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/10/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND The X-linked inhibitor of apoptosis (XIAP) protein is encoded by the XIAP gene and is critical for multiple cell responses and plays a role in preventing cell death. XIAP mutations are associated with several diseases, primarily including hemophagocytic lymphohistiocytosis and inflammatory bowel disease (IBD). We report the clinical features and results associated with hemizygous mutation of the XIAP gene in a young male with Crohn's disease complicated with acute heart failure.This 16-year-old patient ultimately died of heart failure. CASE PRESENTATION A young male of 16 years of age was initially diagnosed with Crohn's disease based on evidences from endoscopic and histological findings. Although supportive care, anti-infective drugs and biologics were administered consecutively for 11 months, his clinical manifestations and laboratory indices (patient's condition) did not improved. Additionally, the patient exhibited a poor nutritional status and sustained weight loss. Subsequently, acute heart failure led to the exacerbation of the patient's condition. He was diagnosed with wet beriberi according to thiamine deficiency, but the standard medical therapy for heart failure and thiamine supplementation did not reverse the adverse outcomes. Comprehensive genetic analysis of peripheral blood-derived DNA revealed a novel hemizygous mutation of the XIAP gene (c.1259_1262 delACAG), which was inherited from his mother. CONCLUSION A novel XIAP mutation (c.1259_1262 delACAG) was identified in this study. It may be one of the potential pathogenic factors in Crohn's disease and plays an important role in the progression of heart failure. Additionally, thiamine deficiency triggers a vicious cycle.
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Affiliation(s)
- Chendong Peng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Yuang Jiang
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Xianhong Ou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Lei Liao
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Chengying Yang
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Qiao Zhou
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China
| | - Yan Wei
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Lijia Chang
- Prenatal Diagnosis Center, Shijiazhuang Obstetrics and Gynecology Hospital, Key Laboratory of Maternal and Fetal Medicine of Hebei Province, 16 Tangu-North Street, Shijiazhuang, 050000, Hebei, China.
| | - Xinrong Fan
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, 646000, Sichuan, China.
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, 646000, Sichuan, China.
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Arianti R, Ágnes Vinnai B, Győry F, Guba A, Csősz É, Kristóf E, Fésüs L. Availability of abundant thiamine determines efficiency of thermogenic activation in human neck area derived adipocytes. J Nutr Biochem 2023:109385. [PMID: 37230255 DOI: 10.1016/j.jnutbio.2023.109385] [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: 06/29/2022] [Revised: 11/23/2022] [Accepted: 05/20/2023] [Indexed: 05/27/2023]
Abstract
Brown/beige adipocytes express uncoupling protein-1 (UCP1) that enables them to dissipate energy as heat. Systematic activation of this process can alleviate obesity. Human brown adipose tissues are interspersed in distinct anatomical regions including deep neck. We found that UCP1 enriched adipocytes differentiated from precursors of this depot highly expressed ThTr2 transporter of thiamine and consumed thiamine during thermogenic activation of these adipocytes by cAMP which mimics adrenergic stimulation. Inhibition of ThTr2 led to lower thiamine consumption with decreased proton leak respiration reflecting reduced uncoupling. In the absence of thiamine, cAMP-induced uncoupling was diminished but restored by thiamine addition reaching the highest levels at thiamine concentrations larger than present in human blood plasma. Thiamine is converted to thiamine pyrophosphate (TPP) in cells; the addition of TPP to permeabilized adipocytes increased uncoupling fueled by TPP-dependent pyruvate dehydrogenase. ThTr2 inhibition also hampered cAMP-dependent induction of UCP1, PGC1a, and other browning marker genes, and thermogenic induction of these genes was potentiated by thiamine in a concentration dependent manner. Our study reveals the importance of amply supplied thiamine during thermogenic activation in human adipocytes which provides TPP for TPP-dependent enzymes not fully saturated with this cofactor and by potentiating the induction of thermogenic genes.
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Affiliation(s)
- Rini Arianti
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary; Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, H-4032, Debrecen, Hungary
| | - Boglárka Ágnes Vinnai
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary; Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, H-4032, Debrecen, Hungary
| | - Ferenc Győry
- Department of Surgery, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - Andrea Guba
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary; Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, H-4032, Debrecen, Hungary
| | - Éva Csősz
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - Endre Kristóf
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary.
| | - László Fésüs
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary.
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21
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Raghuvanshi DS, Chakole S, Kumar M. Relationship Between Vitamins and Diabetes. Cureus 2023; 15:e36815. [PMID: 37123774 PMCID: PMC10146464 DOI: 10.7759/cureus.36815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 03/28/2023] [Indexed: 03/30/2023] Open
Abstract
This review article aims to examine the relationship between specific vitamins and type 2 diabetes. Individuals with diabetes have been observed to have lower levels of specific antioxidant vitamins such as A, C, and E, possibly due to the need to manage oxidative stress caused by glucose metabolic abnormalities. Retinol-binding protein, which has adipocytokine activities, has a modulatory effect. Levels of thiamine, pyridoxine, and biotin are also lower in individuals with diabetes. While the reasons for this are unclear, some improvement in metabolic control has been observed with supplementation. Although metformin is the preferred treatment for type 2 diabetes, it has been found to limit the absorption of certain nutrients, including vitamin B9 and vitamin B12, necessitating regular supplementation of these nutrients for people with diabetes. Diabetes and its consequences, including cardiovascular disease, are more likely in those with low vitamin D levels. Although some research suggests that vitamin K intake may improve glucose metabolism, further evidence is required. Research on the effectiveness of multivitamins has produced inconsistent results, and there are no clear guidelines for vitamin supplementation in individuals with type 2 diabetes mellitus. However, people who use metformin for extended periods may benefit from additional folic acid and vitamin B12 supplements.
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Fridolfsson E, Majaneva S, Hylander S. Limited effects of macro-nutrient ratios on thiamin content and transfer in phytoplankton and copepods. JOURNAL OF PLANKTON RESEARCH 2023; 45:360-371. [PMID: 37012974 PMCID: PMC10066808 DOI: 10.1093/plankt/fbad004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 01/08/2023] [Indexed: 06/19/2023]
Abstract
Vitamin B1 (thiamin) is primarily produced by bacteria, phytoplankton and fungi in aquatic food webs and transferred to higher trophic levels by ingestion. However, much remains unknown regarding the dynamics this water-soluble, essential micronutrient; e.g. how it relates to macronutrients (carbon, nitrogen and phosphorous). Nutrient limitation has been found to be related to periods of thiamin deficiency as well as in models. Hence, thiamin transfer to copepods from three phytoplankton species from different taxa was investigated, along with the effect of various nutrient regimes on thiamin content. Nutrient levels did not affect thiamin content of phytoplankton nor the transfer to copepods. Instead, phytoplankton displayed species-specific thiamin and macronutrient contents and whilst a higher thiamin content in the prey lead to higher levels in copepods, the transfer was lower for Skeletonema compared to Dunaliella and Rhodomonas. In all, thiamin transfer to copepods is not only dependent on thiamin content of the prey, but also the edibility and/or digestibility is of importance. Thiamin is essential for all organisms, and this study offers insights into the limited effect of macronutrients on the dynamics and transfer of thiamin in the aquatic food webs.
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Affiliation(s)
| | | | - Samuel Hylander
- Department of Biology and Environmental Sciences, Centre for Ecology and Evolution in Microbial model Systems – EEMiS, Linnaeus University, Kalmar SE-39182, Sweden
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23
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Abdelaziz TA, Atfy M, Elalawi SM, Baz EG. Thiamine status during treatment of diabetic ketoacidosis in children - tertiary care centre experience. J Pediatr Endocrinol Metab 2023; 36:179-184. [PMID: 36440592 DOI: 10.1515/jpem-2022-0387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/11/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES There is a lack of information regarding thiamine status in children with diabetic ketoacidosis (DKA). This study was designed to assess the thiamine status upon admission and 24 h after treatment initiation of DKA, whether newly diagnosed children or with established T1DM diagnosis, who presented with DKA. METHODS We enrolled 90 children (mean age, 9.8 ± 2.6 years; 58 females and 32 males) with type 1 diabetes mellitus (T1DM), whether newly diagnosed or with an established T1DM diagnosis (from 1 to 5.2 years ago), who presented with DKA. We observed the initial Glasgow Coma Scale (GCS) and recovery time. The whole blood thiamine diphosphate levels were measured upon admission (baseline point) and 24 h after initiation of the DKA treatment (second-time point). RESULTS The mean blood thiamine levels at the second-time point (90.11 ± 15.76 nmol/L) significantly decreased compared with their levels at baseline (108.8 ± 17.6 nmol/L) (p<0.001). We compared thiamine levels with the initial GCS, patient's age, and recovery time. Thiamine levels at the second-time point were positively correlated with baseline thiamine levels (r=0.86, p=0.0001) and the initial GCS (r=0.68, p=0.001) but were negatively correlated with patient's age (r=-0.61, p=0.001) and recovery time (r=-0.724, p=0.001). Based on multiple regression analysis, thiamine levels at the second-time point were directly related to the initial GCS and inversely related to the patient's age. CONCLUSIONS The current study indicates that blood thiamine diphosphate levels significantly decreased after 24 h of DKA treatment initiation compared to pre-treatment levels. After 24 h of treatment initiation, blood thiamine levels are directly related to the initial GCS and inversely related to the patient's age.
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Affiliation(s)
- Tarek A Abdelaziz
- Pediatric Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mervat Atfy
- Pediatric Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Saffaa M Elalawi
- Clinical Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman Gamal Baz
- Pediatric Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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In Vivo Evaluation of Thiamine Hydrochloride with Gastro-Retentive Drug Delivery in Healthy Human Volunteers Using Gamma Scintigraphy. Pharmaceutics 2023; 15:pharmaceutics15020691. [PMID: 36840013 PMCID: PMC9960539 DOI: 10.3390/pharmaceutics15020691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
A floating tablet system containing thiamine hydrochloride, a model drug with a narrow absorption window, was evaluated. The tablet was found to have a floating lag time of less than 30 s with a sustained drug release over 12 h during in vitro dissolution studies. The gastro-retentive property of the tablet in relation to the bioavailability of thiamine was determined in healthy human volunteers using gamma scintigraphy under fasted and fed conditions. The gastro-retentive time of the floating tablet could be prolonged up to 10 h under the fed state, compared to about 1.8 h in the fasted state. The prolonged gastric retention under the fed state resulted in a 2.8-fold increase in oral bioavailability of thiamine compared to that of the fasted state. There was also a 1.4-fold increase in thiamine absorption compared to that of a conventional immediate release tablet in the fed state. In the fasted state, the extent of thiamine absorption from the floating tablet was only about 70% of that absorbed from the immediate release tablet. Thus, to achieve a better performance, such floating tablet systems should be administered under a fed condition, to prolong the gastric retention time.
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25
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Seeing Neurodegeneration in a New Light Using Genetically Encoded Fluorescent Biosensors and iPSCs. Int J Mol Sci 2023; 24:ijms24021766. [PMID: 36675282 PMCID: PMC9861453 DOI: 10.3390/ijms24021766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Neurodegenerative diseases present a progressive loss of neuronal structure and function, leading to cell death and irrecoverable brain atrophy. Most have disease-modifying therapies, in part because the mechanisms of neurodegeneration are yet to be defined, preventing the development of targeted therapies. To overcome this, there is a need for tools that enable a quantitative assessment of how cellular mechanisms and diverse environmental conditions contribute to disease. One such tool is genetically encodable fluorescent biosensors (GEFBs), engineered constructs encoding proteins with novel functions capable of sensing spatiotemporal changes in specific pathways, enzyme functions, or metabolite levels. GEFB technology therefore presents a plethora of unique sensing capabilities that, when coupled with induced pluripotent stem cells (iPSCs), present a powerful tool for exploring disease mechanisms and identifying novel therapeutics. In this review, we discuss different GEFBs relevant to neurodegenerative disease and how they can be used with iPSCs to illuminate unresolved questions about causes and risks for neurodegenerative disease.
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Kareem O, Nisar S, Tanvir M, Muzaffer U, Bader GN. Thiamine deficiency in pregnancy and lactation: implications and present perspectives. Front Nutr 2023; 10:1080611. [PMID: 37153911 PMCID: PMC10158844 DOI: 10.3389/fnut.2023.1080611] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 04/03/2023] [Indexed: 05/10/2023] Open
Abstract
During pregnancy, many physiologic changes occur in order to accommodate fetal growth. These changes require an increase in many of the nutritional needs to prevent long-term consequences for both mother and the offspring. One of the main vitamins that are needed throughout the pregnancy is thiamine (vitamin B1) which is a water-soluble vitamin that plays an important role in many metabolic and physiologic processes in the human body. Thiamine deficiency during pregnancy can cause can have many cardiac, neurologic, and psychological effects on the mother. It can also dispose the fetus to gastrointestinal, pulmonological, cardiac, and neurologic conditions. This paper reviews the recently published literature about thiamine and its physiologic roles, thiamine deficiency in pregnancy, its prevalence, its impact on infants and subsequent consequences in them. This review also highlights the knowledge gaps within these topics.
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Affiliation(s)
- Ozaifa Kareem
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India
- *Correspondence: Ozaifa Kareem, ,
| | - Sobia Nisar
- Department of Medicine, Government Medical College, Srinagar, India
| | - Masood Tanvir
- Department of Medicine, Government Medical College, Srinagar, India
| | - Umar Muzaffer
- Department of Medicine, Government Medical College, Srinagar, India
| | - G. N. Bader
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India
- G. N. Bader,
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Baldin C, Kühbacher A, Merschak P, Wagener J, Gsaller F. Modular Inducible Multigene Expression System for Filamentous Fungi. Microbiol Spectr 2022; 10:e0367022. [PMID: 36350143 PMCID: PMC9769661 DOI: 10.1128/spectrum.03670-22] [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: 09/11/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022] Open
Abstract
Inducible promoters are indispensable elements when considering the possibility to modulate gene expression on demand. Desirable traits of conditional expression systems include their capacity for tight downregulation, high overexpression, and in some instances for fine-tuning, to achieve a desired product's stoichiometry. Although the number of inducible systems is slowly increasing, suitable promoters comprising these features are rare. To date, the concomitant use of multiple regulatable promoter platforms for controlled multigene expression has been poorly explored. This work provides pioneer work in the human pathogenic fungus Aspergillus fumigatus, wherein we investigated different inducible systems, elucidated three candidate promoters, and proved for the first time that up to three systems can be used simultaneously without interfering with each other. Proof of concept was obtained by conditionally expressing three antifungal drug targets within the ergosterol biosynthetic pathway under the control of the xylose-inducible PxylP system, the tetracycline-dependent Tet-On system, and the thiamine-repressible PthiA system. IMPORTANCE In recent years, inducible promoters have gained increasing interest for industrial or laboratory use and have become key instruments for protein expression, synthetic biology, and metabolic engineering. Constitutive, high-expressing promoters can be used to achieve high expression yields; however, the continuous overexpression of specific proteins can lead to an unpredictable metabolic burden. To prevent undesirable effects on the expression host's metabolism, the utilization of tunable systems that allow expression of a gene product on demand is indispensable. Here, we elucidated several excellent tunable promoter systems and verified that each can be independently induced in a single strain to ultimately develop a unique conditional multigene expression system. This highly efficient, modular toolbox has the potential to significantly advance applications in fundamental as well as applied research in which regulatable expression of several genes is a key requirement.
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Affiliation(s)
- Clara Baldin
- Institute of Molecular Biology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Alexander Kühbacher
- Institute of Molecular Biology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Petra Merschak
- Institute of Molecular Biology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Johannes Wagener
- Department of Clinical Microbiology, School of Medicine, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Fabio Gsaller
- Institute of Molecular Biology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
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Sliwa K, Viljoen CA, Hasan B, Ntusi NAB. Nutritional Heart Disease and Cardiomyopathies: JACC Focus Seminar 4/4. J Am Coll Cardiol 2022; 81:S0735-1097(22)07308-9. [PMID: 36599756 DOI: 10.1016/j.jacc.2022.08.812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 01/03/2023]
Abstract
This JACC Focus Seminar provides an overview of and highlights recently published research on cardiomyopathies and nutritional heart disease that have a higher prevalence in tropical regions. The development of tropical cardiomyopathies and nutritional cardiovascular disease (CVD) is complicated by high rates of poverty, fragmented health care systems, and suboptimal access to health care because of socioeconomic inequalities, leading to the fact that children, adolescents, and young adults are disproportionally affected. Such tropical cardiomyopathies and nutritional CVD that have not been prevalent in high-income countries in the past decades are now reemerging. When treating migrants or refugees, it is important for attending physicians to consider the burden of endemic diseases in the countries of origin and the likelihood that such patients might be affected. In this review, the authors propose an approach for adequate diagnostic work-up leading to appropriate care for those with suspected or confirmed tropical cardiomyopathies and nutritional CVD.
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Affiliation(s)
- Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Charle Andre Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Babar Hasan
- Division of Cardio-Thoracic Sciences, Sindh Institute of Urology and Transplant, Karachi, Pakistan
| | - Ntobeko A B Ntusi
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; South African Medical Research Council Extramural Unit on Intersection of Noncommunicable Diseases and Infectious Diseases, Cape Town, South Africa
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Gibson GE, Feldman HH, Zhang S, Flowers SA, Luchsinger JA. Pharmacological thiamine levels as a therapeutic approach in Alzheimer's disease. Front Med (Lausanne) 2022; 9:1033272. [PMID: 36275801 PMCID: PMC9585656 DOI: 10.3389/fmed.2022.1033272] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
of the study.
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Affiliation(s)
- Gary E. Gibson
- Weill Cornell Medicine, Brain and Mind Research Institute, Burke Neurological Institute, White Plains, NY, United States
| | - Howard H. Feldman
- Alzheimer's Disease Cooperative Study and Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Sheng Zhang
- Proteomics and Metabolomics Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, United States
| | - Sarah A. Flowers
- Department of Neuroscience, Georgetown University, Washington, DC, United States
| | - José A. Luchsinger
- Departments of Medicine and Epidemiology, Columbia University Irving Medical Center, New York, NY, United States
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30
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Howe GW, Grenade NL. Sulfite-Catalyzed Nucleophilic Substitution Reactions with Thiamin and Analogous Pyrimidine Donors Proceed via an S NAE Mechanism. J Org Chem 2022; 87:13224-13235. [PMID: 36150085 DOI: 10.1021/acs.joc.2c01685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
When treated with SO32-, thiamin undergoes a substitution reaction to release a thiazole leaving group and the corresponding sulfonate. Although this reaction could proceed via a simple SN2-like mechanism, a multistep addition-elimination (SNAE) mechanism involving the addition of SO32- to C6' of the 4-aminopyrimidine of thiamin has also been proposed. Although this reaction has potential utility in the synthesis of substituted pyrimidines and provides a direct analogue to reactions catalyzed by thiaminases, a detailed mechanistic picture of the SO32--catalyzed cleavage of thiamin has remained elusive. Here, DFT calculations have been used to probe the relative energetics and the factors that shape the potential energy surfaces that define the possible mechanisms of substitution. These calculations provide clear support for the SNAE mechanism over an SN2-like process and illustrate that the unique ability of SO32- to activate thiamin toward nucleophilic displacement is due to the combined nucleophilicity and relatively poor leaving group ability of SO32-. Both of these factors favor the forward partitioning of the sulfite adduct toward the cleavage products whereas adducts formed with other nucleophiles overwhelmingly revert to reactants. Calculations performed with a range of substrates with various electrophilicities and nucleofugalities consistently suggest that the SNAE pathway is significantly lower in energy than the direct substitution, illustrating that this SO32--catalyzed multistep process is likely to be broadly applicable both in solution and in catalysis by thiaminases.
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Affiliation(s)
- Graeme W Howe
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Neil L Grenade
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
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31
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Lane SL, Dowgos NM, Brainard BM. Evaluation of blood thiamine concentration in hospitalized dogs with and without critical illness. J Vet Emerg Crit Care (San Antonio) 2022; 32:723-732. [PMID: 36082426 DOI: 10.1111/vec.13245] [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: 04/08/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate blood thiamine concentration in healthy and critically ill hospitalized dogs over 72 hours of hospitalization and to identify any association of thiamine concentration with patient morbidity and mortality. DESIGN Prospective, observational, clinical study. SETTING University veterinary teaching hospital. ANIMALS Thirty-one hospitalized healthy dogs and 37 dogs with critical illness. Dogs with critical illness had nonseptic (n = 24) or septic (n = 13) etiologies. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Whole blood EDTA samples were collected within 24 hours of admission and 72 hours later. Samples were stored at -80°C and batch analyzed. Total thiamine (tB1) and thiamine diphosphate (TDP) concentrations were measured using high-performance liquid chromatography, and free thiamine concentration was determined using liquid chromatography with tandem mass spectrometry. Collected patient data included CBC, biochemistry profile, plasma lactate concentration, shock index, Acute Patient Physiologic and Laboratory Evaluation Score (APPLEfast ) score, comorbid conditions, and patient outcome. Approximately 92% of tB1 present in whole blood is measured as TDP. TDP concentration was strongly correlated with tB1 (R = 0.97, P < 0.0001). Thiamine concentration, represented by TDP, was not different at admission or at 72 hours in all dogs. TDP concentration was lower in septic dogs requiring surgery at admission (P = 0.044) and 72 hours later (P = 0.008), compared to dogs not requiring surgery. TDP concentration was not different between dogs with and without stable chronic diseases at any time point. Older dogs had lower TDP concentration. Positive correlations were seen between TDP and body weight, APPLEfast score, and WBC count. Critically ill dogs with lower admission plasma lactate concentration were more likely to have an increase in thiamine over time (P = 0.0142). CONCLUSIONS Differences in thiamine concentration were not identified in hospitalized healthy or critically ill dogs. Further investigation into the clinical relevance of thiamine deficiency is indicated in septic dogs undergoing surgery.
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Affiliation(s)
- Selena L Lane
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Nicole M Dowgos
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Benjamin M Brainard
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
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U-Shaped Relation of Dietary Thiamine Intake and New-Onset Hypertension. Nutrients 2022; 14:nu14163251. [PMID: 36014758 PMCID: PMC9415122 DOI: 10.3390/nu14163251] [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: 06/24/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/30/2022] Open
Abstract
Background: To examine the relation of dietary thiamine intake with risk of new-onset hypertension in the general adults. Methods: A total of 12,177 participants without hypertension at baseline from China Health and Nutrition Survey (CHNS) were included. The study outcome was new-onset hypertension, which was defined as a systolic blood pressure ≥140 mm Hg or a diastolic blood pressure ≥90 mm Hg or under antihypertensive treatment or diagnosed by physician during the follow-up. Results: A total of 4269 participants occurred new-onset hypertension over a median follow-up of 6.1 years. Overall, there was a U-shaped relation (p for nonlinearity <0.001) of dietary thiamine intake with new-onset hypertension, with an inflection point at 0.93 mg/day. Accordingly, in the threshold effect analysis, there was an inverse association between dietary thiamine intake (per SD increment: HR, 0.62; 95% CI: 0.53, 0.72) and new-onset hypertension in participants with dietary thiamine intake <0.93 mg/day, and a positive association between dietary thiamine intake (per SD increment: HR, 1.38; 95% CI: 1.32, 1.44) and new-onset hypertension in those with dietary thiamine intake ≥0.93 mg/day. Conclusion: The association between dietary thiamine intake and the risk of new-onset hypertension followed a U-shaped relation in the general Chinese population, with an inflection point at 0.93 mg/day of dietary thiamine intake.
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33
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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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Critical commentary on "The potential of a site-specific delivery of thiamine hydrochloride as a novel insect repellent exerting long-term protection on human skin: In-vitro, ex-vivo study and clinical assessment". J Pharm Sci 2022; 111:2141-2142. [PMID: 35843654 DOI: 10.1016/j.xphs.2022.03.012] [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: 01/20/2022] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 11/23/2022]
Abstract
This letter comments on a recent article by Halawani et al. (10.1016/j.xphs.2021.07.017), which claimed a complex hydrogel formulation of thiamine nanospheres is a topical insect repellent. The authors did not thoroughly review the extensive prior literature on the subject that found no evidence of repellency for thiamine, and the experiment described lacked negative controls. Its results are not conclusive.
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35
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Associations between early thiamine administration and clinical outcomes in critically ill patients with acute kidney injury. Br J Nutr 2022; 128:183-191. [PMID: 34392848 DOI: 10.1017/s0007114521003111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The effects of early thiamine use on clinical outcomes in critically ill patients with acute kidney injury (AKI) are unclear. The purpose of this study was to investigate the associations between early thiamine administration and clinical outcomes in critically ill patients with AKI. The data of critically ill patients with AKI within 48 h after ICU admission were extracted from the Medical Information Mart for Intensive Care III (MIMIC III) database. PSM was used to match patients early receiving thiamine treatment to those not early receiving thiamine treatment. The association between early thiamine use and in-hospital mortality due to AKI was determined using a logistic regression model. A total of 15 066 AKI patients were eligible for study inclusion. After propensity score matching (PSM), 734 pairs of patients who did and did not receive thiamine treatment in the early stage were established. Early thiamine use was associated with lower in-hospital mortality (OR 0·65; 95 % CI 0·49, 0·87; P < 0·001) and 90-d mortality (OR 0·58; 95 % CI 0·45, 0·74; P < 0·001), and it was also associated with the recovery of renal function (OR 1·26; 95 % CI 1·17, 1·36; P < 0·001). In the subgroup analysis, early thiamine administration was associated with lower in-hospital mortality in patients with stages 1 to 2 AKI. Early thiamine use was associated with improved short-term survival in critically ill patients with AKI. It was possible beneficial role in patients with stages 1 to 2 AKI according to the Kidney Disease: Improving Global Outcomes criteria.
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36
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Heilfort L, Kutschan S, Dörfler J, Freuding M, Büntzel J, Münstedt K, Hübner J. A Systematic Review of the Benefit of B-Vitamins as a Complementary Treatment in Cancer Patients. Nutr Cancer 2022; 75:33-47. [PMID: 35819060 DOI: 10.1080/01635581.2022.2098348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
B-vitamins act as enzymatic co-factors in immune functions, therefore they are considered to reduce chemotherapy-induced side effects in cancer patients. We conducted a systematic search, screening five electronic databases (Embase, Cochrane, PsychInfo, CINAHL and Medline) to find studies on the effectiveness and potential harm of B-vitamin therapy on cancer patients. Out of the 7465 search results, 11 RCTs about vitamin B6, B12 and B-vitamins in combination were included in this systematic review. A total of 1546 patients with diverse types of cancer were evaluated. Overall, most studies were of acceptable quality and reported consistent results. Studies examining the effectiveness of vitamin B6 reported that there is no significant impact on decreasing the incidence and severity of chemotherapy-induced side effects (e.g., hand-foot syndrome), the necessity of chemotherapy dose-modifications or improving patients' quality of life, tumor response/progression, and overall survival. Two studies reported that vitamin B12 could be effective in the alleviation of symptoms resulting from chemotherapy; it might decrease motor, sensory and pain symptoms of peripheral neuropathy. However, a combination of B vitamins may not reduce the incidence of chemotherapy-induced peripheral neuropathy. All in all, the evidence on B-vitamins in cancer patients is low and supplementation cannot be recommended.
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Affiliation(s)
- L Heilfort
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Jena, Germany
| | - S Kutschan
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Jena, Germany
| | - J Dörfler
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Jena, Germany
| | - M Freuding
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Jena, Germany
| | - J Büntzel
- Klinik für HNO-Erkrankungen, Südharz-Klinikum Nordhausen, Nordhausen, Germany
| | - K Münstedt
- Klinik für Gynäkologie und Geburtshilfe, Ortenau Klinikum Offenburg-Gengenbach, Offenburg, Germany
| | - J Hübner
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Jena, Germany
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37
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Lai RY, Mondal A, Fedoseyenko D, Begley TP. Mechanistic Studies on the Single-Turnover Yeast Thiamin Pyrimidine Synthase: Characterization of the Inactive Enzyme. J Am Chem Soc 2022; 144:10711-10717. [PMID: 35675507 DOI: 10.1021/jacs.2c03322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The eukaryotic thiamin pyrimidine synthase, THI5p, has been identified as a suicidal/single-turnover enzyme that catalyzes the conversion of its active site histidine and lysine-bound pyridoxal phosphate (PLP) to the thiamin pyrimidine (HMP-P). Here we identify the histidine and PLP fragments using bottom-up proteomics and LC-MS analysis. We also identify the active form of the iron cofactor and quantitate the oxygen requirement of the THI5p reaction. This information is integrated into a mechanistic proposal for this remarkable reaction.
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Affiliation(s)
- Rung-Yi Lai
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Anushree Mondal
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Dmytro Fedoseyenko
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Tadhg P Begley
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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38
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B Vitamins and Their Roles in Gut Health. Microorganisms 2022; 10:microorganisms10061168. [PMID: 35744686 PMCID: PMC9227236 DOI: 10.3390/microorganisms10061168] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023] Open
Abstract
B vitamins act as coenzymes in a myriad of cellular reactions. These include energy production, methyl donor generation, neurotransmitter synthesis, and immune functions. Due to the ubiquitous roles of these vitamins, their deficiencies significantly affect the host’s metabolism. Recently, novel roles of B vitamins in the homeostasis of gut microbial ecology and intestinal health continue to be unravelled. This review focuses on the functional roles and biosynthesis of B vitamins and how these vitamins influence the growth and proliferation of the gut microbiota. We have identified the gut bacteria that can produce vitamins, and their biosynthetic mechanisms are presented. The effects of B vitamin deficiencies on intestinal morphology, inflammation, and its effects on intestinal disorders are also discussed.
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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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40
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High Lipid Content of Prey Fish and n−3 PUFA Peroxidation Impair the Thiamine Status of Feeding-Migrating Atlantic Salmon (Salmo salar) and Is Reflected in Hepatic Biochemical Indices. Biomolecules 2022; 12:biom12040526. [PMID: 35454115 PMCID: PMC9031544 DOI: 10.3390/biom12040526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
Signs of impaired thiamine (vitamin B1) status in feeding-migrating Atlantic salmon (Salmo salar) were studied in three Baltic Sea areas, which differ in the proportion and nutritional composition of prey fish sprat (Sprattus sprattus) and herring (Clupea harengus). The concentration of n−3 polyunsaturated fatty acids (n−3 PUFAs) increased in salmon with dietary lipids and n−3 PUFAs, and the hepatic peroxidation product malondialdehyde (MDA) concentration increased exponentially with increasing n−3 PUFA and docosahexaenoic acid (DHA, 22:6n−3) concentration, whereas hepatic total thiamine concentration, a sensitive indicator of thiamine status, decreased with the increase in both body lipid and n−3 PUFA or DHA concentration. The hepatic glucose 6-phosphate dehydrogenase activity was suppressed by high dietary lipids. In salmon muscle and in prey fish, the proportion of thiamine pyrophosphate increased, and that of free thiamine decreased, with increasing body lipid content or PUFAs, or merely DHA. The thiamine status of salmon was impaired mainly due to the peroxidation of n−3 PUFAs, whereas lipids as a source of metabolic energy had less effect. Organochlorines or general oxidative stress did not affect the thiamine status. The amount of lipids, and, specifically, their long-chain n−3 PUFAs, are thus responsible for generating thiamine deficiency, and not a prey fish species per se.
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41
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Zhang J, Yin Y, Zhang J, Zhang J, Su W, Ma H, Jia F, Zhao G, Wang H. Suppression of Energy Metabolism in Cancer Cells with Nutrient-Sensing Nanodrugs. NANO LETTERS 2022; 22:2514-2520. [PMID: 35285648 DOI: 10.1021/acs.nanolett.2c00356] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Uncontrolled growth of tumor cells is highly dependent on the energy metabolism. Fasting-mimicking diet (FMD) is a low-calorie, low-protein, low-sugar diet representing a promising strategy for cancer treatment. However, triglyceride stored in adipose tissue is hydrolyzed into free fatty acids and glycerol for energy supply during FMD treatment. Herein, we design a nutrient-sensing nanodrug, VFETX, which is self-assembled with vitamin B1 (VB1), ferrous ions, and etomoxir (ETX). FMD treatment upregulate the expression of VB1 transporters on tumor cells, thereby increasing cellular uptake and tumor accumulation of VFETX. Importantly, treatments of VFETX and FMD synergistically inhibit the energy metabolism in tumor cells and subsequently markedly enhance cytotoxicity of ETX. As a result, VFETX nanodrugs efficiently inhibit the growth of two tumor models in vivo without obvious side effects. This study demonstrates the potential of FMD-assisted nutrient-sensing nanodrugs for cancer therapy.
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Affiliation(s)
- Jiayi Zhang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yue Yin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Jie Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Jingran Zhang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China
| | - Wen Su
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Haixia Ma
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Fuhao Jia
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Guangjiu Zhao
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China
| | - Hai Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Palmieri F, Monné M, Fiermonte G, Palmieri L. Mitochondrial transport and metabolism of the vitamin B-derived cofactors thiamine pyrophosphate, coenzyme A, FAD and NAD + , and related diseases: A review. IUBMB Life 2022; 74:592-617. [PMID: 35304818 PMCID: PMC9311062 DOI: 10.1002/iub.2612] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 01/19/2023]
Abstract
Multiple mitochondrial matrix enzymes playing key roles in metabolism require cofactors for their action. Due to the high impermeability of the mitochondrial inner membrane, these cofactors need to be synthesized within the mitochondria or be imported, themselves or one of their precursors, into the organelles. Transporters belonging to the protein family of mitochondrial carriers have been identified to transport the coenzymes: thiamine pyrophosphate, coenzyme A, FAD and NAD+ , which are all structurally similar to nucleotides and derived from different B-vitamins. These mitochondrial cofactors bind more or less tightly to their enzymes and, after having been involved in a specific reaction step, are regenerated, spontaneously or by other enzymes, to return to their active form, ready for the next catalysis round. Disease-causing mutations in the mitochondrial cofactor carrier genes compromise not only the transport reaction but also the activity of all mitochondrial enzymes using that particular cofactor and the metabolic pathways in which the cofactor-dependent enzymes are involved. The mitochondrial transport, metabolism and diseases of the cofactors thiamine pyrophosphate, coenzyme A, FAD and NAD+ are the focus of this review.
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Affiliation(s)
- Ferdinando Palmieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
| | - Magnus Monné
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,Department of Sciences, University of Basilicata, Potenza, Italy
| | - Giuseppe Fiermonte
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
| | - Luigi Palmieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
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Pereira MJ, Andersson‐Assarsson JC, Jacobson P, Kamble P, Taube M, Sjöholm K, Carlsson LMS, Svensson P. Human adipose tissue gene expression of solute carrier family 19 member 3 ( SLC19A3); relation to obesity and weight-loss. Obes Sci Pract 2022; 8:21-31. [PMID: 35127120 PMCID: PMC8804923 DOI: 10.1002/osp4.541] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/09/2021] [Accepted: 06/15/2021] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE Adipose tissue is a specialized endocrine organ that is involved in modulating whole-body energy homeostasis and expresses a specific subset of genes, which may play a role in adipose tissue metabolism. The aim of this study was to search for novel adipose tissue-specific genes using a tissue panel of RNAseq expression profiles. METHODS RNAseq expression profiles from 53 human tissues were downloaded from the GTex database. SLC19A3 expression was analyzed by microarray or real-time PCR in two sets of paired subcutaneous and omental adipose tissue samples, in two studies with adipose tissue from persons with high or low body mass index (BMI), in adipose tissue from patients who underwent weight loss with a very-low caloric diet and during preadipocyte-adipocyte differentiation. RESULTS The RNAseq-based tissue distribution expression screen identified SLC19A3 (encoding the thiamine transporter 2) as adipose tissue-specific. SLC19A3 expression was higher in subcutaneous compared with omental adipose tissue in both sample sets (p = 0.043 and p < 0.001). Preadipocyte differentiation towards adipocytes resulted in increased SLC19A3 gene expression (p = 0.018 or less at all-time points). Subcutaneous adipose tissue expression of SLC19A3 was lower in persons with high BMI in both cohorts (p = 0.008, and p < 0.001) and increased during a weight-loss intervention (p = 0.006). CONCLUSION The specific adipose tissue expression pattern of SLC19A3, together with its regulation in obesity and during weight loss, indicate that it plays a key role in adipocyte metabolism.
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Affiliation(s)
- Maria J. Pereira
- Department of Medical SciencesClinical Diabetes and MetabolismUppsala UniversityUppsalaSweden
| | - Johanna C. Andersson‐Assarsson
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Peter Jacobson
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Prasad Kamble
- Department of Medical SciencesClinical Diabetes and MetabolismUppsala UniversityUppsalaSweden
| | - Magdalena Taube
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Kajsa Sjöholm
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Lena M. S. Carlsson
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Per‐Arne Svensson
- Department of Molecular and Clinical MedicineInstitute of Medicine at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Institute of Health and Care Sciences at the Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
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Costa NA, Pereira AG, Sugizaki CSA, Vieira NM, Garcia LR, de Paiva SAR, Zornoff LAM, Azevedo PS, Polegato BF, Minicucci MF. Insights Into Thiamine Supplementation in Patients With Septic Shock. Front Med (Lausanne) 2022; 8:805199. [PMID: 35155482 PMCID: PMC8832096 DOI: 10.3389/fmed.2021.805199] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/31/2021] [Indexed: 11/13/2022] Open
Abstract
Septic shock is associated with unacceptably high mortality rates, mainly in developing countries. New adjunctive therapies have been explored to reduce global mortality related to sepsis. Considering that metabolic changes, mitochondrial dysfunction and increased oxidative stress are specific disorders within the path of septic shock, several micronutrients that could act in cellular homeostasis have been studied in recent decades. Thiamine, also known as vitamin B1, plays critical roles in several biological processes, including the metabolism of glucose, synthesis of nucleic acids and reduction of oxidative stress. Thiamine deficiency could affect up to 70% of critically ill patients, and thiamine supplementation appears to increase lactate clearance and decrease the vasopressor dose. However, there is no evident improvement in the survival of septic patients. Other micronutrients such as vitamin C and D, selenium and zinc have been tested in the same context but have not been shown to improve the outcomes of these patients. Some problems related to the neutrality of these clinical trials are the study design, doses, route, timing, length of intervention and the choice of endpoints. Recently, the concept that multi-micronutrient administration may be better than single-micronutrient administration has gained strength. In general, clinical trials consider the administration of a single micronutrient as a drug. However, the antioxidant defense is a complex system of endogenous agents in which micronutrients act as cofactors, and the physiological interactions between micronutrients are little discussed. In this context, the association of thiamine, vitamin C and corticoids was tested as an adjunctive therapy in septic shock resulting in a significant decrease in mortality. However, after these initial results, no other study conducted with this combination could reproduce those benefits. In addition, the use of low-dose corticosteroids is recommended in patients with septic shock who do not respond to vasopressors, which can affect the action of thiamine. Therefore, given the excellent safety profile, good biologic rationale and promising clinical studies, this review aims to discuss the mechanisms behind and the evidence for single or combined thiamine supplementation improving the prognosis of patients with septic shock.
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Affiliation(s)
- Nara Aline Costa
- Faculty of Nutrition, Universidade Federal de Goiás (UFG), Goiânia, Brazil
| | - Amanda Gomes Pereira
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Nayane Maria Vieira
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Leonardo Rufino Garcia
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | | | | | - Paula Schmidt Azevedo
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Bertha Furlan Polegato
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Marcos Ferreira Minicucci
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
- *Correspondence: Marcos Ferreira Minicucci
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Ito S, Nakashima H, Ando K, Machino M, Seki T, Ishizuka S, Takegami Y, Wakai K, Hasegawa Y, Imagama S. Nutritional Influences on Locomotive Syndrome. J Clin Med 2022; 11:jcm11030610. [PMID: 35160062 PMCID: PMC8836534 DOI: 10.3390/jcm11030610] [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: 12/12/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
Healthy dietary habits are important to prevent locomotive syndrome (LS). We investigated the relationship between LS and nutritional intake using community health checkup data. We included 368 participants who underwent LS staging, blood sampling, and nutritional intake assessments. Participants (163 adults < 65: 205 older adults ≥ 65) were divided into normal (N; LS stage 0) and LS (L; LS stage 1–2) groups, and blood sample data and nutritional intake were compared between groups. Among adults (N group, 71; L group, 92), low-density lipoprotein cholesterol (LDL-C) was significantly lower, and Vitamin B1 intake was significantly higher in the L than in the N group; LDL-C, p = 0.033; Vitamin B1, 0.029. Among older adults (N group, 85; L group, 120), hemoglobin (Hb), albumin, and calcium levels were significantly lower, and sodium, monounsaturated fatty acids (MUFA), and n-6 polyunsaturated fatty acids (n-6 PUFA) were significantly higher in the L than the N group; Hb, p = 0.036; albumin, 0.030; calcium, 0.025; sodium; 0.029; MUFA; 0.047, n-6 PUFA; 0.0233). Logistic regression analysis indicated that sodium was the risk factor for the L group (exp (B) 1.001, 95% CI: 1–1.001, p = 0.032). In conclusion, salt intake was associated with LS.
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Affiliation(s)
- Sadayuki Ito
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Hiroaki Nakashima
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
- Correspondence: ; Tel.: +81-52-741-2111
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Masaaki Machino
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Taisuke Seki
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Shinya Ishizuka
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Yasuhiko Takegami
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan;
| | - Yukiharu Hasegawa
- Department of Rehabilitation, Kansai University of Welfare Science, Osaka 582-0026, Japan;
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan; (S.I.); (K.A.); (M.M.); (T.S.); (S.I.); (Y.T.); (S.I.)
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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: 41] [Impact Index Per Article: 20.5] [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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Pajk SP, Qi Z, Sujansky SJ, Bandar JS. A Base-Catalyzed Approach for the anti-Markovnikov Hydration of Styrene Derivatives. Chem Sci 2022; 13:11427-11432. [PMID: 36320585 PMCID: PMC9533481 DOI: 10.1039/d2sc02827a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/24/2022] [Indexed: 11/21/2022] Open
Abstract
The base-catalyzed addition of 1-cyclopropylethanol to styrene derivatives with an acidic reaction workup enables anti-Markovnikov hydration. The use of either catalytic organic superbase or crown ether-ligated inorganic base permits hydration of a wide variety of styrene derivatives, including electron-deficient, ortho-substituted and heteroaryl variants. This protocol complements alternative routes to terminal alcohols that rely on stoichiometric reduction and oxidation processes. The utility of this method is demonstrated through multigram scale reactions and its use in a two-step hydration/cyclization process of ortho-halogenated styrenes to prepare 2,3-dihydrobenzofuran derivatives. The base-catalyzed addition of 1-cyclopropylethanol to vinyl (hetero)arenes sequenced with an acidic reaction workup enables anti-Markovnikov hydration in a complementary fashion to traditional hydroboration/oxidation protocols.![]()
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Affiliation(s)
- Spencer P Pajk
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
| | - Zisong Qi
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
| | - Stephen J Sujansky
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
| | - Jeffrey S Bandar
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
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Ali S, Nedvědová Š, Badshah G, Afridi MS, Abdullah, Dutra LM, Ali U, Faria SG, Soares FL, Rahman RU, Cançado FA, Aoyanagi MM, Freire LG, Santos AD, Barison A, Oliveira CA. NMR spectroscopy spotlighting immunogenicity induced by COVID-19 vaccination to mitigate future health concerns. CURRENT RESEARCH IN IMMUNOLOGY 2022; 3:199-214. [PMID: 36032416 PMCID: PMC9393187 DOI: 10.1016/j.crimmu.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
In this review, the disease and immunogenicity affected by COVID-19 vaccination at the metabolic level are described considering the use of nuclear magnetic resonance (NMR) spectroscopy for the analysis of different biological samples. Consistently, we explain how different biomarkers can be examined in the saliva, blood plasma/serum, bronchoalveolar-lavage fluid (BALF), semen, feces, urine, cerebrospinal fluid (CSF) and breast milk. For example, the proposed approach for the given samples can allow one to detect molecular biomarkers that can be relevant to disease and/or vaccine interference in a system metabolome. The analysis of the given biomaterials by NMR often produces complex chemical data which can be elucidated by multivariate statistical tools, such as PCA and PLS-DA/OPLS-DA methods. Moreover, this approach may aid to improve strategies that can be helpful in disease control and treatment management in the future. NMR analysis of various bio-samples can explore disease course and vaccine interaction. Immunogenicity and reactogenicity caused by COVID-19 vaccination can be studied by NMR. Vaccine interaction alters metabolic pathway(s) at a certain stage, and this mechanism can be probed at the metabolic level.
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Hinnouho GM, Hampel D, Shahab-Ferdows S, Barffour MA, McAnena L, Arnold CD, Ryan Wessells K, Kounnavong S, Allen LH, McNulty H, Hess SY. Daily supplementation of a multiple micronutrient powder improves folate but not thiamine, riboflavin, or vitamin B 12 status among young Laotian children: a randomized controlled trial. Eur J Nutr 2022; 61:3423-3435. [PMID: 35534778 PMCID: PMC9464137 DOI: 10.1007/s00394-022-02890-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/07/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE To assess the effects of intervention with a daily multiple micronutrient powder (MNP) on thiamine, riboflavin, folate, and B12 status among young Laotian children. METHODS Children (n = 1704) aged 6-23 mo, participating in a double-blind placebo-controlled randomized trial were individually randomized to receive daily either MNP (containing 0.5 mg of thiamine, 0.5 mg riboflavin, 150 μg folic acid, and 0.9 μg vitamin B12 along with 11 other micronutrients) or placebo and followed for ~ 36 weeks. In a randomly selected sub-sample of 260 children, erythrocyte thiamine diphosphate (eThDP), plasma folate and B12 concentrations, and erythrocyte glutathione reductase activation coefficient (EGRac; riboflavin biomarker) were assessed at baseline and endline. RESULTS There was no treatment effect on endline eThDP concentrations (110.6 ± 8.9 nmol/L in MNP vs. 109.4 ± 8.9 nmol/L in placebo group; p = 0.924), EGRac (1.46 ± 0.3 vs. 1.49 ± 0.3; p = 0.184) and B12 concentrations (523.3 ± 24.6 pmol/L vs. 515.9 ± 24.8 pmol/L; p = 0.678). Likewise, the prevalence of thiamine, riboflavin, and B12 deficiencies did not differ significantly between the two groups. However, endline folate concentration was significantly higher in the MNP compared to the placebo group (28.2 ± 0.8 nmol/L vs 19.9 ± 0.8 nmol/L, respectively; p < 0.001), and correspondingly, the prevalence of folate deficiency was significantly lower in the MNP group (1.6% vs 17.4%; p = 0.015). CONCLUSIONS Compared to a placebo, daily MNP for 9 months increased only folate but not thiamine, riboflavin, or B12 status in young Laotian children. TRIAL REGISTRATION The trial was registered at www. CLINICALTRIALS gov (NCT02428647) on April 29 2015.
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Affiliation(s)
- Guy-Marino Hinnouho
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA, USA. .,Helen Keller International, Washington, DC, USA.
| | - Daniela Hampel
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA ,USDA, ARS Western Human Nutrition Research Center, Davis, CA USA
| | | | - Maxwell A. Barffour
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA ,University of Missouri School of Medicine, Columbia, MO USA ,Public Health Program, College of Health and Human Services, Missouri State University, Springfield, MO USA
| | - Liadhan McAnena
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland UK
| | - Charles D. Arnold
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA
| | - K. Ryan Wessells
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA
| | - Sengchanh Kounnavong
- Lao Tropical and Public Health Institute, Vientiane, Lao People’s Democratic Republic
| | - Lindsay H. Allen
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA ,USDA, ARS Western Human Nutrition Research Center, Davis, CA USA
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland UK
| | - Sonja Y. Hess
- Department of Nutrition, Institute for Global Nutrition, University of California, Davis, CA USA
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Nguyen YTK, Ha HTT, Nguyen TH, Nguyen LN. The role of SLC transporters for brain health and disease. Cell Mol Life Sci 2021; 79:20. [PMID: 34971415 PMCID: PMC11071821 DOI: 10.1007/s00018-021-04074-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 09/05/2021] [Accepted: 10/21/2021] [Indexed: 12/19/2022]
Abstract
The brain exchanges nutrients and small molecules with blood via the blood-brain barrier (BBB). Approximately 20% energy intake for the body is consumed by the brain. Glucose is known for its critical roles for energy production and provides substrates for biogenesis in neurons. The brain takes up glucose via glucose transporters GLUT1 and 3, which are expressed in several neural cell types. The brain is also equipped with various transport systems for acquiring amino acids, lactate, ketone bodies, lipids, and cofactors for neuronal functions. Unraveling the mechanisms by which the brain takes up and metabolizes these nutrients will be key in understanding the nutritional requirements in the brain. This could also offer opportunities for therapeutic interventions in several neurological disorders. For instance, emerging evidence suggests a critical role of lactate as an alternative energy source for neurons. Neuronal cells express monocarboxylic transporters to acquire lactate. As such, treatment of GLUT1-deficient patients with ketogenic diets to provide the brain with alternative sources of energy has been shown to improve the health of the patients. Many transporters are present in the brain, but only a small number has been characterized. In this review, we will discuss about the roles of solute carrier (SLC) transporters at the blood brain barrier (BBB) and neural cells, in transport of nutrients and metabolites in the brain.
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Affiliation(s)
- Yen T K Nguyen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| | - Hoa T T Ha
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| | - Tra H Nguyen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| | - Long N Nguyen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore.
- SLING/Immunology Program, Life Sciences Institute, National University of Singapore, Singapore, 117456, Singapore.
- Immunology Translational and Cardiovascular Disease Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117545, Singapore.
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