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Chen F, Fang H, Zhao J, Jiang P, Dong H, Zhao Y, Wang H, Zhang T, Zhang D. Multivariate modular metabolic engineering and medium optimization for vitamin B 12 production by Escherichia coli. Synth Syst Biotechnol 2024; 9:453-461. [PMID: 38634001 PMCID: PMC11021867 DOI: 10.1016/j.synbio.2024.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/24/2024] [Accepted: 03/29/2024] [Indexed: 04/19/2024] Open
Abstract
Vitamin B12 is a complex compound synthesized by microorganisms. The industrial production of vitamin B12 relies on specific microbial fermentation processes. E. coli has been utilized as a host for the de novo biosynthesis of vitamin B12, incorporating approximately 30 heterologous genes. However, a metabolic imbalance in the intricate pathway significantly limits vitamin B12 production. In this study, we employed multivariate modular metabolic engineering to enhance vitamin B12 production in E. coli by manipulating two modules comprising a total of 10 genes within the vitamin B12 biosynthetic pathway. These two modules were integrated into the chromosome of a chassis cell, regulated by T7, J23119, and J23106 promoters to achieve combinatorial pathway optimization. The highest vitamin B12 titer was attained by engineering the two modules controlled by J23119 and T7 promoters. The inclusion of yeast powder to the fermentation medium increased the vitamin B12 titer to 1.52 mg/L. This enhancement was attributed to the effect of yeast powder on elevating the oxygen transfer rate and augmenting the strain's isopropyl-β-d-1-thiogalactopyranoside (IPTG) tolerance. Ultimately, vitamin B12 titer of 2.89 mg/L was achieved through scaled-up fermentation in a 5-liter fermenter. The strategies reported herein will expedite the development of industry-scale vitamin B12 production utilizing E. coli.
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Affiliation(s)
- Feitao Chen
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Huan Fang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- University of Chinese Academy of Science, Beijing, 100049, China
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
| | - Jianghua Zhao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- University of Chinese Academy of Science, Beijing, 100049, China
| | - Pingtao Jiang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Huina Dong
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- University of Chinese Academy of Science, Beijing, 100049, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
| | - Ying Zhao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Huiying Wang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Tongcun Zhang
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Dawei Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- University of Chinese Academy of Science, Beijing, 100049, China
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
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Jafarisavari Z, Ai J, Abbas Mirzaei S, Soleimannejad M, Asadpour S. Development of new nanofibrous nerve conduits by PCL-Chitosan-Hyaluronic acid containing Piracetam- Vitamin B12 for sciatic nerve: A rat model. Int J Pharm 2024; 655:123978. [PMID: 38458406 DOI: 10.1016/j.ijpharm.2024.123978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Peripheral nerve injury is a critical condition that can disrupt nerve functions. Despite the progress in engineering artificial nerve guidance conduits (NGCs), nerve regeneration remains challenging. Here, we developed new nanofibrous NGCs using polycaprolactone (PCL) and chitosan (CH) containing piracetam (PIR)/vitamin B12(VITB12) with an electrospinning method. The lumen of NGCs was coated by hyaluronic acid (HA) to promote regeneration in sciatic nerve injury. The NGCs were characterized via Scanning Electron Microscopy (SEM), Fourier transform infrared (FTIR), tensile, swelling, contact angle, degradation, and drug release tests. Neuronal precursor cell line (PCL12 cell) and rat mesenchymal stem cells derived from bone marrow (MSCs) were seeded on the nanofibrous conduits. After that, the biocompatibility of the NGCs was evaluated by the 2,5-diphenyl-2H-tetrazolium bromide (MTT) assay, 4',6-diamidino-2-phenylindole (DAPI) staining, and SEM images. The SEM demonstrated that PCL/CH/PIR/VITB12 NGCs had nonaligned, interconnected, smooth fibers. The mechanical properties of these NGCs were similar to rat sciatic nerve. These conduits had an appropriate swelling and degradation rate. The In Vitro studies exhibited favorable biocompatibility of the PCL/CH/PIR/VITB12 NGCs towards PC12 cells and MSCs. The in vitro studies exhibited favorable biocompatibility of the PCL/CH/PIR/VIT B12 NGCs towards MSCs and PC12 cells. To analyze functional efficacy, NGCs were implanted into a 10 mm Wistar rat sciatic nerve gap and bridged the proximal and distal stump of the defect. After three months, the results of sciatic functional index (55.3 ± 1.8), hot plate latency test (5.6 ± 0.5 s), gastrocnemius muscle wet weight-loss (38.57 ± 1.6 %) and histopathological examination using hematoxylin-eosin (H&E) /toluidine blue/ Anti-Neurofilament (NF200) staining demonstrated that the produced conduit recovered motor and sensory functions and had comparable nerve regeneration compared to the autograft that can be as the gold standard to bridge the nerve gaps.
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Affiliation(s)
- Zahra Jafarisavari
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Jafar Ai
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Abbas Mirzaei
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mostafa Soleimannejad
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Shiva Asadpour
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran; Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Rekik A, Santoro C, Poplawska-Domaszewicz K, Qamar MA, Batzu L, Landolfo S, Rota S, Falup-Pecurariu C, Murasan I, Chaudhuri KR. Parkinson's disease and vitamins: a focus on vitamin B12. J Neural Transm (Vienna) 2024:10.1007/s00702-024-02769-z. [PMID: 38602571 DOI: 10.1007/s00702-024-02769-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
Parkinson's disease (PD) has been linked to a vast array of vitamins among which vitamin B12 (Vit B12) is the most relevant and often investigated specially in the context of intrajejunal levodopa infusion therapy. Vit B12 deficiency, itself, has been reported to cause acute parkinsonism. Nevertheless, concrete mechanisms through which B12 deficiency interacts with PD in terms of pathophysiology, clinical manifestation and progression remains unclear. Recent studies have suggested that Vit B12 deficiency along with the induced hyperhomocysteinemia are correlated with specific PD phenotypes characterized with early postural instability and falls and more rapid motor progression, cognitive impairment, visual hallucinations and autonomic dysfunction. Specific clinical features such as polyneuropathy have also been linked to Vit B12 deficiency specifically in context of intrajejunal levodopa therapy. In this review, we explore the link between Vit B12 and PD in terms of physiopathology regarding dysfunctional neural pathways, neuropathological processes as well as reviewing the major clinical traits of Vit B12 deficiency in PD and Levodopa-mediated neuropathy. Finally, we provide an overview of the therapeutic effect of Vit B12 supplementation in PD and posit a practical guideline for Vit B12 testing and supplementation.
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Affiliation(s)
- Arwa Rekik
- Department of Neurology of Sahloul Hospital, Sousse, Tunisia.
- Faculty of Medicine of Sousse, Sousse, Tunisia.
| | - Carlo Santoro
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70100, Bari, Italy
| | - Karolina Poplawska-Domaszewicz
- Department of Neurology, Poznan University of Medical Sciences, 60-355, Poznan, Poland
- Parkinson's Foundation Center of Excellence, King's College Hospital, Denmark Hill, London, UK
| | - Mubasher Ahmad Qamar
- Parkinson's Foundation Center of Excellence, King's College Hospital, Denmark Hill, London, UK
- Division of Neuroscience, Department of Basic & Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 9RT, UK
| | - Lucia Batzu
- Parkinson's Foundation Center of Excellence, King's College Hospital, Denmark Hill, London, UK
- Division of Neuroscience, Department of Basic & Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 9RT, UK
| | - Salvatore Landolfo
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70100, Bari, Italy
| | - Silvia Rota
- Parkinson's Foundation Center of Excellence, King's College Hospital, Denmark Hill, London, UK
- Division of Neuroscience, Department of Basic & Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 9RT, UK
| | - Cristian Falup-Pecurariu
- Faculty of Medicine, Transilvania University of Brasov, 500036, Brasov, Romania
- Department of Neurology, County Clinic Hospital, Brasov, Romania
| | - Iulia Murasan
- Faculty of Medicine, Transilvania University of Brasov, 500036, Brasov, Romania
| | - Kallol Ray Chaudhuri
- Parkinson's Foundation Center of Excellence, King's College Hospital, Denmark Hill, London, UK
- Division of Neuroscience, Department of Basic & Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 9RT, UK
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Dułak NA, Rytlewska M, Jaskólska M, Chmielewski M. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review. Rheumatol Int 2024; 44:737-741. [PMID: 38294542 DOI: 10.1007/s00296-024-05539-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024]
Abstract
Vitamin B12 (cobalamin) deficiency is common in patients with rheumatic diseases. Pernicious anemia is a well-known cause, but recent reports suggest that autoimmune-derived deficiency may not be limited to this cause alone. Symptoms of low vitamin B12 concentration are often deceptive, mimicking and overlapping with symptoms of other conditions. Neuropsychiatric manifestations, anemia, and fatigue are frequently attributed to a rheumatic disease without further evaluation. In this study, we present three cases of patients with neuropathic pain, depression, fatigue, and muscle weakness, initially attributed to a rheumatic disease, which almost completely resolved after implementing vitamin B12 supplementation. Furthermore, we provide an overview of current scientific reports regarding the potential use of cobalamin in rheumatology. Treatment of pain and neuropathy, often very challenging in long-lasting rheumatic diseases, can be more effective after a course of vitamin B12, even when no apparent deficiency is detected in laboratory tests. Considering recent research demonstrating vitamin B12's nerve-protecting properties, we recommend that physicians should assess vitamin B12 levels early in the diagnostic process of rheumatic diseases. In specific cases, physicians should consider cobalamin supplementation regardless of vitamin B12 serum concentration.
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Affiliation(s)
- Natalia Aleksandra Dułak
- Department of Rheumatology, Clinical Immunology, Geriatrics and Internal Medicine, Medical University of Gdansk, Gdansk, Poland.
| | - Magdalena Rytlewska
- Department of Rheumatology, Clinical Immunology, Geriatrics and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Marta Jaskólska
- Department of Rheumatology, Clinical Immunology, Geriatrics and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Michał Chmielewski
- Department of Rheumatology, Clinical Immunology, Geriatrics and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
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Rogez J, Urbanski G, Vinatier E, Lavigne C, Emmanuel L, Dupin I, Ravaiau C, Lacombe V. Iron deficiency in pernicious anemia: Specific features of iron deficient patients and preliminary data on response to iron supplementation. Clin Nutr 2024; 43:1025-1032. [PMID: 38527394 DOI: 10.1016/j.clnu.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/09/2024] [Accepted: 03/16/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND & AIMS While vitamin B12 (B12) deficiency is considered as the hallmark of pernicious anemia (PA), iron deficiency (ID) is also prevalent. Indeed, this auto immune gastritis is responsible for parietal cell atrophy and increase in gastric pH, leading to impaired iron absorption. We compared PA patients' features according to their iron status at PA diagnosis, and we assessed the iron status recovery after oral or intravenous iron supplementation. METHODS We prospectively included patients presenting with a newly diagnosed PA in a tertiary referral hospital between November 2018 and October 2020. Iron status was assessed at PA diagnosis then regularly during a standardized follow-up. In case of ID, the decision of treatment with oral and/or intravenous iron supplementation was left to the clinician convenience. RESULTS We included 28 patients with newly diagnosed PA. ID was observed in 21/28 (75.0%) patients: from the PA diagnosis in 13 patients, or during the follow-up in 8 patients. Iron deficient PA patients had higher plasma B12 (p = 0.04) and lower homocysteine levels (p = 0.04). Also, ID was independently associated with the 'APCA (anti-parietal cell antibodies) alone' immunological status (absence of anti-intrinsic factor antibodies) after adjustment for age, gender and B12 level (aOR 12.1 [1.1-141.8], p = 0.04). High level of APCA was associated with lower ferritin level. After 3 months of supplementation, 3/11 PA patients normalized the iron status with oral iron supplementation, versus 7/8 with intravenous iron supplementation (p = 0.02). CONCLUSION The high frequency of iron deficiency in PA highlights the interest of regular assessment of iron status in this condition. ID was associated with a profile including APCA alone and less pronounced B12 deficiency. Intravenous iron supplementation seemed to be more efficient than an oral supplementation in these preliminary data.
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Affiliation(s)
- Juliette Rogez
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France
| | - Geoffrey Urbanski
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France; Department of Immunology and Allergology, Geneva University Hospital, Geneve, Switzerland; Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, CA, USA
| | - Emeline Vinatier
- Laboratory of Immunology, Angers University Hospital, Angers, France
| | - Christian Lavigne
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France
| | - Léa Emmanuel
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France
| | - Iris Dupin
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France
| | - Camille Ravaiau
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France
| | - Valentin Lacombe
- Department of Internal Medicine and Clinical Immunology, Angers University Hospital, Angers, France; Univ Angers, MitoLab, Unité MITOVASC, UMR CNRS 6015, INSERM U1083, SFR ICAT, Angers, France.
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Patel AV, Morgan SL, Green R, Danila MI, Merriman TR, Wanzeck K, Ahmed H, Gaffo AL. Vitamin B12 status and hyperhomocysteinemia in patients with Rheumatoid arthritis treated with methotrexate and folic acid. Am J Med Sci 2024:S0002-9629(24)01147-9. [PMID: 38561045 DOI: 10.1016/j.amjms.2024.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 03/04/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is an inflammatory arthritis in which the immune system targets synovial joints. Methotrexate serves as the mainstay of treatment for RA due to its efficacy. However, patients treated with methotrexate are uniquely at risk for vitamin B12 deficiency and hyperhomocysteinemia due to coincident disease risk factors and the fact that methotrexate use is associated with malabsorption. The objective of this study was to assess for vitamin B12 deficiency among patients with RA treated with methotrexate and folic acid. METHODS This cross-sectional study included 50 patients with RA treated with methotrexate and folic acid and 49 patients with RA treated with other therapies. Patients were matched by age, sex, race, renal function, and disease activity. We compared plasma vitamin B12, methylmalonic acid, and homocysteine levels between these two groups utilizing quantitative and categorical analyses. RESULTS Thirty-seven (74 %) RA patients on methotrexate and folic acid had elevated plasma homocysteine levels compared with only 27 (55 %) RA patients receiving other therapies (P < 0.05). The proportion of patients with low vitamin B12 and high methylmalonic acid levels did not differ between the two groups. CONCLUSIONS Our data show high plasma homocysteine levels among RA patients treated with methotrexate and folic acid. While plasma vitamin B12 levels were similar between the two groups, high plasma homocysteine is also a sensitive marker of vitamin B12 deficiency. Additional studies should evaluate for the presence of clinical features of vitamin B12 deficiency and hyperhomocysteinemia among RA patients treated with methotrexate and folic acid.
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Affiliation(s)
- Aakash V Patel
- Tinsley Harrison Internal Medicine Residency Program, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Sarah L Morgan
- Division of Rheumatology and Clinical Immunology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ralph Green
- Department of Pathology and Laboratory Medicine, University of California Davis, Davis, CA, United States of America
| | - Maria I Danila
- Division of Rheumatology and Clinical Immunology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Tony R Merriman
- Division of Rheumatology and Clinical Immunology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Keith Wanzeck
- Division of Rheumatology and Clinical Immunology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Hamdy Ahmed
- Division of Rheumatology, University of South Alabama, Mobile, AL, United States of America
| | - Angelo L Gaffo
- Division of Rheumatology and Clinical Immunology, University of Alabama at Birmingham and Birmingham VA Medical Center, Birmingham, AL, United States of America.
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Zhu QR, Dieuwertje EK, Bekele HT, Manusama K, Zhang JX, Xie W, Zong WQ, Zuo H, Zhang J, Kampman E, Dai Y. Association of Serum Folate and Vitamin B 12 Concentrations with Obesity in Chinese Children and Adolescents. Biomed Environ Sci 2024; 37:242-253. [PMID: 38582989 DOI: 10.3967/bes2024.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/08/2023] [Indexed: 04/08/2024]
Abstract
Objective This study aimed to evaluate the associations of serum folate and/or vitamin B 12 concentrations with obesity among Chinese children and adolescents. Methods A cross-sectional study was conducted including 3,079 Chinese children and adolescents, aged 6 to 17 years, from Jiangsu, China. Anthropometric indices, such as, children's body mass index (BMI), BMI z-scores, waist circumference, and waist-to-height ratio were utilized. Multivariable linear regression and generalized additive models were used to investigate the associations of serum folate and vitamin B 12 levels with anthropometric indices and odds of obesity. Results We observed that serum vitamin B 12 concentrations were inversely associated with all anthropometric indices and the odds of general obesity [odds ratio ( OR) = 0.68; 95% confidence interval ( CI) = 0.59, 0.78] and abdominal obesity ( OR = 0.68; 95% CI = 0.60, 0.77). When compared to participants with both serum vitamin levels in the two middle quartiles, those with both serum folate and vitamin B 12 levels in the highest quartile were less prone to general ( OR = 0.31, 95% CI = 0.19, 0.50) or abdominal obesity ( OR = 0.46, 95% CI = 0.31, 0.67). Conversely, participants with vitamin B 12 levels in the lowest quartile alongside folate levels in the highest quartile had higher odds of abdominal obesity ( OR = 2.06, 95% CI = 1.09, 3.91). Conclusion Higher serum vitamin B 12 concentrations, but not serum folate concentrations, were associated with lower odds of childhood obesity. Children and adolescents with high levels of vitamin B 12 and folate were less likely to be obese.
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Affiliation(s)
- Qian Rang Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, Jiangsu, China;Division of Human Nutrition and Health, Wageningen University & Research, Wageningen 176700 AA, The Netherlands
| | - E Kok Dieuwertje
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen 176700 AA, The Netherlands
| | - Hailu Tesfaye Bekele
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen 176700 AA, The Netherlands
| | - Koen Manusama
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen 176700 AA, The Netherlands
| | - Jing Xian Zhang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, Jiangsu, China
| | - Wei Xie
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, Jiangsu, China
| | - Wen Qi Zong
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, Jiangsu, China
| | - Hui Zuo
- School of Public Health, Medical College of Soochow University, Suzhou 215123, Jiangsu, China
| | - Jian Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Ellen Kampman
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen 176700 AA, The Netherlands
| | - Yue Dai
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, Jiangsu, China
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Li H, Dang Y, Yan Y. Serum interleukin-17 A and homocysteine levels in children with autism. BMC Neurosci 2024; 25:17. [PMID: 38475688 DOI: 10.1186/s12868-024-00860-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Autism Spectrum Disorder (ASD) is a neurodevelopmental condition that typically emerges early in childhood. This study aimed to explore the potential link between serum levels of vitamin B12 and homocysteine (Hcy) and the severity of ASD symptoms in children. METHODS In this study, 50 children diagnosed with ASD comprised the observation group, while 50 healthy children constituted the control group. Serum levels of IL-17 A, Hcy, folate, and vitamin B12 were compared between the study group and control group, as well as among children with different degrees of ASD severity. The correlation between the Childhood Autism Rating Scale (CARS) score and serum levels of IL-17 A, Hcy, folate, and vitamin B12 was examined. Additionally, the relationship between serum IL-17 A and Hcy levels and their association with the severity ASD were explored. RESULTS Compared to the control group, the observation group demonstrated elevated serum Hcy and IL-17 A levels alongside decreased folate and vitamin B12 levels. Individuals with severe ASD exhibited higher Hcy and IL-17 A levels but lower folate and vitamin B12 levels compared to those with mild to moderate ASD. The CARS score showed negative correlations with serum folate and vitamin B12 levels and positive correlations with serum IL-17 A and Hcy levels in ASD patients. Additionally, serum Hcy and IL-17 A levels were correlated with ASD severity. CONCLUSION Children diagnosed with ASD presented with reduced serum vitamin B12 levels and increased levels of Hcy, potentially contributing to the onset and severity of ASD.
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Affiliation(s)
- Hui Li
- Department of Child Health Care, Northwest Women's and Children's Hospital, 710061, Xi'an, China.
| | - Yunhao Dang
- Xi'an Mental Health Center, Department of Children and adolescents Psychology, 710061, Xi'an, China
| | - Ying Yan
- Department of Child Health Care, Xi'an Central Hospital, 710004, Xi'an, China
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Singhal A, Singh A, Sharma D, Bose KS. Correlation between maternal and infant vitamin B12 levels in severe malnutrition in infants under 6 months. Ir J Med Sci 2024:10.1007/s11845-024-03662-0. [PMID: 38462591 DOI: 10.1007/s11845-024-03662-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Malnutrition poses a significant global health challenge, affecting various age groups, with infants under 6 months being particularly vulnerable. Vitamin B12, an essential micronutrient critical for neurological development, has been identified as a key player in the overall health of both mothers and infants. AIM To find the correlation between serum vitamin B12 levels in infants, 1-6 months of age with severe malnutrition and maternal levels at tertiary care hospitals in western Rajasthan. METHODS The cross-sectional study was conducted in the UNICEF Regional Center of Excellence-supported Nutrition Rehabilitation Center in Rajasthan, India, through simple random sampling. One hundred ten infants with their mothers were enrolled after consent and approval from the Institutional Ethics Committee. RESULTS Severe malnutrition predominantly affected infants aged 1-2 months, with 77% born small for gestational age and 66.4% belonging to the multiple birth order group. Serum vitamin B12 levels showed a significant positive correlation between mothers and infants (p < 0.001), while exclusive breastfeeding correlated positively with age-appropriate milestones (p = 0.033). CONCLUSION The findings emphasize the importance of targeted interventions addressing maternal and infant nutrition, with a focus on ensuring adequate vitamin B12 levels.
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Affiliation(s)
- Arushi Singhal
- Department of Paediatrics, Dr SN Medical College and Hospital, Jodhpur, India
| | - Anurag Singh
- Department of Paediatrics, Dr SN Medical College and Hospital, Jodhpur, India
| | - Damini Sharma
- Department of Paediatrics, Dr SN Medical College and Hospital, Jodhpur, India
| | - Kritanjali Sahu Bose
- Department of Community Medicine, Rajiv Gandhi Medical Collegeand, Chhatrapati Shivaji Medical College, Kalwa, Thane, India.
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Chen LK. Divergent clinical implications of elevated serum vitamin B12 in all-cause mortality based on different origins. Arch Gerontol Geriatr 2024; 118:105337. [PMID: 38262891 DOI: 10.1016/j.archger.2024.105337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Affiliation(s)
- Liang-Kung Chen
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan; Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan; Taipei Municipal Gan-Dau Hospital (Managed by Taipei Veterans General Hospital), Taipei, Taiwan.
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Ruxton CHS, Gordon S. Animal board invited review: The contribution of red meat to adult nutrition and health beyond protein. Animal 2024; 18:101103. [PMID: 38442540 DOI: 10.1016/j.animal.2024.101103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 03/07/2024] Open
Abstract
Red meat has been a critical part of human diets for millennia, providing a source of high-quality protein, micronutrients and essential fatty acids. However, as societies evolved and industrialisation reshaped our food systems, there has been a noticeable shift in meat-eating trends driven by concerns about the environmental impact of meat production and its potential risk to health. Yet, despite falling out of favour with some dietary experts and influencers, meat has an important role in a healthy diet and most adults still consume it. This article explores the nutritional value of red meat, authorised nutrition and health claims, how red meat fits into diet, providing the example of the United Kingdom (UK), and the health benefits and risks associated with both eating and avoiding red meat. Benefits of red meat include nutrient density and bioavailability while risks include colorectal cancer at high intakes of processed meats, based on observational studies. Benefits of meat-free diets include a lower risk of chronic diseases, based on observational studies, while risks include nutrient inadequacy, higher bone fracture risk and low protein quality. Hence, a wholesale shift to plant-based diets may not benefit adults who are vulnerable to sub-optimal nutrient intakes, such as women of child-bearing age and the elderly. More evidence from randomised controlled trials is recommended to fully understand the benefits and risks of both meat-containing and meat-free diets.
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Affiliation(s)
- C H S Ruxton
- Nutrition Communications, Cupar KY15 4HQ, United Kingdom.
| | - S Gordon
- NICHE, Ulster University, Coleraine BT52 1SA, United Kingdom
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Sah RP, Vidya CS, Pereira P, Jayaram S, Yadav AK, Sujatha P. Elevated Homocysteine Level and Brain Atrophy Changes as Markers to Screen the Alzheimer Disease: Case Series. Ann Geriatr Med Res 2024; 28:116-120. [PMID: 38105011 PMCID: PMC10982442 DOI: 10.4235/agmr.23.0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/09/2023] [Accepted: 12/08/2023] [Indexed: 12/19/2023] Open
Abstract
Alzheimer disease (AD) is the most common cause of dementia worldwide. Its clinical manifestations include a progressive loss of memory and other cognitive domains, as well as brain atrophy. An elevated homocysteine level (>15 µmol/L), known as hyperhomocysteinemia, is also an attributing risk factor for AD, vascular pathologies, and brain atrophy. Neuroimaging studies including T2-weighted magnetic resonance imaging scans revealed white matter hyperintensities in the periventricular and deep white matter, enlarged ventricles, widened sulci, and decreased white matter mass, which are features of aging, as well as cerebrovascular changes. This case series investigated changes in biochemical marker levels including serum homocysteine, folate, and vitamin B12, and the degree of atrophic variations in cortical-subcortical white matter in AD. The present study hypothesized that serum homocysteine levels might be used as a surrogate marker to screen for AD at an earlier stage.
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Affiliation(s)
- Ram Prakash Sah
- Department of Anatomy, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, India
| | - C. S. Vidya
- Department of Anatomy, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, India
| | - Pratibha Pereira
- Department of Geriatric Medicine, JSS Hospital, JSS Academy of Higher Education and Research, Mysore, India
| | - Shubha Jayaram
- Department of Biochemistry, Mysore Medical College and Research Institute, Mysore, India
| | - Anshu Kumar Yadav
- Department of Biochemistry and Medical Genetics, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, India
| | - P. Sujatha
- Department of Biochemistry, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, India
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Shichijo K, Shimakoshi H. Green Molecular Transformation in Dual Catalysis: Photoredox Activation of Vitamin B 12 Using Heterogeneous Photocatalyst. Chempluschem 2024:e202400041. [PMID: 38385837 DOI: 10.1002/cplu.202400041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/23/2024]
Abstract
This concept focuses on dual-catalysis using metal complexes and heterogeneous photocatalysts. Vitamin B12 derivatives are sophisticated metal complexes that facilitate enzymatic reactions in the biological systems. The B12 enzymes inspired reactions catalytically proceed in dual-catalyst systems of B12 derivatives and heterogeneous photocatalysts, such as titanium oxide (TiO2 ) and metal-organic frameworks (MOFs), under light irradiation. The cobalt ions in B12 derivatives are effectively reduced by photoexcited photocatalysts, producing low-valent Co(I) species. The photoinduced nucleophilic Co(I) species react with an alkyl halide to form an organometallic complex with a Co-C bond. The Co-C bond dissociates during photolysis to generate alkyl radicals. Based on this mechanism, dual-catalysis effectively promotes various light-driven organic syntheses and light-driven dehalogenation reactions of toxic alkyl halides. The trends of the dual-catalyst system and recent progress in this field are discussed in this concept.
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Affiliation(s)
- Keita Shichijo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Nishi-ku, Motooka, Fukuoka, 744, 819-0395, Japan
| | - Hisashi Shimakoshi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Nishi-ku, Motooka, Fukuoka, 744, 819-0395, Japan
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Demaret T, Bédard K, Soucy JF, Watkins D, Allard P, Levtova A, O'Brien A, Brunel-Guitton C, Rosenblatt DS, Mitchell GA. The MMACHC variant c.158T>C: Mild clinical and biochemical phenotypes and marked hydroxocobalamin response in cblC patients. Mol Genet Metab 2024; 142:108345. [PMID: 38387306 DOI: 10.1016/j.ymgme.2024.108345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/24/2024]
Abstract
Mutations in MMACHC cause cobalamin C disease (cblC, OMIM 277400), the commonest inborn error of vitamin B12 metabolism. In cblC, deficient activation of cobalamin results in methylcobalamin and adenosylcobalamin deficiency, elevating methylmalonic acid (MMA) and total plasma homocysteine (tHcy). We retrospectively reviewed the medical files of seven cblC patients: three compound heterozygotes for the MMACHC (NM_015506.3) missense variant c.158T>C p.(Leu53Pro) in trans with the common pathogenic mutation c.271dupA (p.(Arg91Lysfs*14), "compounds"), and four c.271dupA homozygotes ("homozygotes"). Compounds receiving hydroxocobalamin intramuscular injection monotherapy had age-appropriate psychomotor performance and normal ophthalmological examinations. In contrast, c.271dupA homozygotes showed marked psychomotor retardation, retinopathy and feeding problems despite penta-therapy (hydroxocobalamin, betaine, folinic acid, l-carnitine and acetylsalicylic acid). Pretreatment levels of plasma and urine MMA and tHcy were higher in c.271dupA homozygotes than in compounds. Under treatment, levels of the compounds approached or entered the reference range but not those of c.271dupA homozygotes (tHcy: compounds 9.8-32.9 μM, homozygotes 41.6-106.8 (normal (N) < 14); plasma MMA: compounds 0.14-0.81 μM, homozygotes, 10.4-61 (N < 0.4); urine MMA: compounds 1.75-48 mmol/mol creatinine, homozygotes 143-493 (N < 10)). Patient skin fibroblasts all had low cobalamin uptake, but this was milder in compound cells. Also, the distribution pattern of cobalamin species was qualitatively different between cells from compounds and from homozygotes. Compared to the classic cblC phenotype presented by c.271dupA homozygous patients, c.[158T>C];[271dupA] compounds had mild clinical and biochemical phenotypes and responded strikingly to hydroxocobalamin monotherapy.
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Affiliation(s)
- Tanguy Demaret
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada; Centre de Génétique Humaine, Institut de Pathologie et Génétique, Gosselies, Belgium
| | - Karine Bédard
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada; Laboratoire de Diagnostic Moléculaire, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada; Département de Pathologie et Biologie Cellulaire, Faculté de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Jean-François Soucy
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - David Watkins
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada; Department of Medical Genetics, McGill University Health Centre, Montreal, Quebec, Canada
| | - Pierre Allard
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada; Department of Biochemistry, CHU Sainte-Justine, Montréal, Québec, Canada
| | - Alina Levtova
- Service de Médecine Génique, Département de Médecine, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Alan O'Brien
- Service de Médecine Génique, Département de Médecine, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Catherine Brunel-Guitton
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada; Division of Biochemical Genetics, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - David S Rosenblatt
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada; Department of Medical Genetics, McGill University Health Centre, Montreal, Quebec, Canada
| | - Grant A Mitchell
- Medical Genetics Division, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, Québec, Canada.
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Liu K, Yang Z, Lu X, Zheng B, Wu S, Kang J, Sun S, Zhao J. The origin of vitamin B12 levels and risk of all-cause, cardiovascular and cancer specific mortality: A systematic review and dose-response meta-analysis. Arch Gerontol Geriatr 2024; 117:105230. [PMID: 38252787 DOI: 10.1016/j.archger.2023.105230] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Vitamin B12 is essential to human but the implications of serum vitamin B12 level for mortality in clinical practice remain unclear. We conducted a systematic review and dose-response meta-analysis to quantify the relationship between vitamin B12 levels and the risk of all-cause, cardiovascular, and cancer mortality. METHODS Electronic databases of PubMed, Embase, and the Cochrane Library Central Register of Controlled Trials were searched from inception through May 2023. Two reviewers independently extracted individual study data and evaluated the risk of bias among the studies using the Newcastle‒Ottawa Scale. To examine a potential nonlinear relationship between the vitamin B12 levels and all-cause mortality, we performed a two-stage random effects dose‒response meta-analysis. RESULTS Twenty-two cohort studies (92,346 individuals with 10,704 all-cause deaths) were included. A linear trend dose-response analysis showed that each 100 pmol/L increase in serum vitamin B12 concentration was associated with a 4 % higher risk of all-cause mortality in the general population (adjusted HR 1.04, 95 % confidence interval CI 1.01 to 1.08; n = 8; P non-linearity = 0.11) and a 6 % higher risk for all-cause mortality in older adults (adjusted HR 1.06, 95 % CI 1.01 to 1.13; n = 4; P non-linearity = 0.78). Current evidence was mixed for the association between serum vitamin B12 concentration and cardiovascular mortality and was limited for cancer mortality. The meta-analysis of cohort studies showed a positive association between a high serum vitamin B12 concentration (>600 pmol/L) and all-cause mortality (adjusted HR 1.50, 95 % CI 1.29 to 1.74; n = 10; p < 0.01), CVD mortality (adjusted HR 2.04, 95 % CI 0.99 to 4.19; n = 2; p = 0.02), except cancer mortality (adjusted HR 1.56, 95 % CI 0.82 to 2.95; n = 3). Similarly, serum vitamin B12 concentrations (400-600 pmol/L) were associated with increased all-cause mortality (adjusted HR 1.34, 95 % CI 1.10 to 1.64; n = 9; p < 0.01). CONCLUSIONS Serum vitamin B12 concentration was positively associated with the risk of all-cause mortality, especially among older adults, with a linear increasing trend. These findings suggested the primary cause of elevated level of serum vitamin B12 concentration should be timely identified and effectively managed in clinical practice.
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Affiliation(s)
- Kefeng Liu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Drug Clinical Comprehensive Evaluation Center, Zhengzhou 450052, China
| | - Zhirong Yang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Xiaojing Lu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Drug Clinical Comprehensive Evaluation Center, Zhengzhou 450052, China
| | - Bang Zheng
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
| | - Shanshan Wu
- Department of Clinical Epidemiology and Evidence-based Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jian Kang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Drug Clinical Comprehensive Evaluation Center, Zhengzhou 450052, China
| | - Shusen Sun
- College of Pharmacy and Health Sciences, Western New England University, MA, United States of America.
| | - Jie Zhao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; National Engineering Laboratory of Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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16
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Al-Bataineh WM, Alzoubi KH, Khabour OF, Mahasneh A, Almomani EM. Vitamin B12 Protects Against Genotoxicity Induced by Cisplatin. Curr Cancer Drug Targets 2024; 24:CCDT-EPUB-138192. [PMID: 38299397 DOI: 10.2174/0115680096284684240110044954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/18/2023] [Accepted: 11/29/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND Cisplatin is an effective synthetic chemotherapeutic drug used for cancer treatment. Vitamin B12 has been shown to possess anti-genotoxic activity. This study aimed to investigate the effect of vitamin B12 on chromosomal damage induced by cisplatin. METHODS The level of sister chromatid exchanges (SCEs) and chromosomal aberrations (CAs) were measured in cultured human blood lymphocytes treated with cisplatin and/or vitamin B12. RESULTS The results showed a significantly elevated frequency of CAs and SCEs of cisplatin-treated cultures compared to the control (P < 0.05). The CAs and SCEs induced by cisplatin were significantly lowered by pretreatment of cell cultures with vitamin B12. In addition, cisplatin caused a slight reduction in the mitotic index (MI), while vitamin B12 did not modulate the effect of cisplatin on MI. CONCLUSION Vitamin B12 can protect human lymphocytes against genotoxicity associated with cisplatin.
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Affiliation(s)
- Wejdan M Al-Bataineh
- Department of Applied Biological Sciences, Faculty of Science and Art, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, UAE
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Omar F Khabour
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Amjad Mahasneh
- Department of Applied Biological Sciences, Faculty of Science and Art, Jordan University of Science and Technology, Irbid, Jordan
| | - Enaam M Almomani
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmaceutical Sciences, The Hashemite University, P.O. box 330127, Zarqa 13133, Jordan
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Abdelwahab OA, Abdelaziz A, Diab S, Khazragy A, Elboraay T, Fayad T, Diab RA, Negida A. Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis. Ir J Med Sci 2024:10.1007/s11845-023-03602-4. [PMID: 38231320 DOI: 10.1007/s11845-023-03602-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 12/25/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND This systematic review and network meta-analysis aimed to evaluate the three different administration routes of vitamin B12: oral, intramuscular (IM), and sublingual (SL) routes. METHODS We searched four electronic databases (PubMed, Scopus, Web of Science, and Cochrane CENTRAL Register of Controlled Trials). We included only comparative studies. We performed a frequentist network meta-analysis to measure network estimates for the relative outcomes. Moreover, we conducted a pairwise meta-analysis using a random effect model to obtain direct estimates for outcomes. All outcomes were continuous, and the relative treatment effects were pooled as mean difference (MD) with 95% confidence intervals. RESULTS Thirteen studies were included in the meta-analysis, with a total of 4275 patients. Regarding increasing vitamin B12 levels, the IM route ranked first, followed by the SL route (MD = 94.09 and 43.31 pg/mL, respectively) compared to the oral route. However, these differences did not reach statistical significance owing to the limited number of studies. Regarding the hemoglobin level, the pooled effect sizes showed no difference between all routes of administration that could reach statistical significance. However, the top two ranked administration routes were the oral route (78.3) and the IM route (49.6). CONCLUSION All IM, oral, and SL routes of administration of vitamin B12 can effectively increase the level of vitamin B12 without significant differences between them, as thought previously. However, the IM route was the top-ranked statistically but without clinical significance. We found no significant difference among studied administrated routes in all other CBC parameters and homocysteine levels.
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Affiliation(s)
- Omar Ahmed Abdelwahab
- Medical Research Group of Egypt, Cairo, Egypt.
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
| | - Ahmed Abdelaziz
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Sherein Diab
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ali Khazragy
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Toka Elboraay
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Taha Fayad
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Oral and Dental Medicine, Sinai University, Sinai, Egypt
| | - Rehab Adel Diab
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Al-Azhar University for Girls, Cairo, Egypt
| | - Ahmed Negida
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmount, UK
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
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Li J, Wang L, Wang Z, Zhao F, Sun Y, Lu Y, Yang L. Association between suicide attempts and anemia in late-life depression inpatients. BMC Geriatr 2024; 24:43. [PMID: 38200429 PMCID: PMC10782764 DOI: 10.1186/s12877-023-04649-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Anemia is strongly associated with late-life depression (LLD), however, few studies have investigated the relationship between anemia and suicide attempts in LLD patients. It is still challenging to predict suicide risk in patients with depression. Therefore, there is growing interest in potential biomarkers of depressive disorders and suicidal behavior, which may play a significant role in the early diagnosis and treatment of depression. This study aimed to compare serum ferritin, folate, vitamin B12, and erythrocyte parameter levels in patients with LLD with those in healthy older adults, and the relationship between serum ferritin, folate, vitamin B12, and suicide attempts in patients. METHODS Serum ferritin, folate, vitamin B12, and erythrocyte parameter levels were measured in 66 hospitalized LLD patients (30 without suicide attempt, 36 with suicide attempt) and 47 healthy individuals. All participants were surveyed for basic conditions and suicide attempts, and depression was assessed in LLD patients. RESULTS Serum ferritin, folate, vitamin B12, red blood cell count, hemoglobin, hematocrit, mean platelet volume and plateletcrit levels were significantly lower in LLD patients compared with healthy older adults (P < 0.05). Further analysis of the relationship between serum ferritin, folate, and vitamin B12 levels and LLD patients' suicide attempts and showed a significant negative association between serum folate and vitamin B12 and suicide attempts (P < 0.05). CONCLUSIONS Serum ferritin, folate, vitamin B12, red blood cell count, hemoglobin, hematocrit, mean platelet volume and plateletcrit levels were significantly lower in LLD patients than in healthy older adults. In addition, reduced serum folate and vitamin B12 levels in patients may have some effect on suicide attempts. More mechanistic studies are needed to further explain this association.
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Affiliation(s)
- Jie Li
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China
| | - Lan Wang
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China
| | - Ziyi Wang
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China
| | - Fengxue Zhao
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China
| | - Yadi Sun
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China
| | - Ying Lu
- Nursing Department of Henan Provincial People's Hospital, 450003, Zhengzhou, Henan, China
| | - Lei Yang
- The Second Affiliated Hospital, School of Nursing, Xinxiang Medical University, 453000, Xinxiang, Henan, China.
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Suryavanshi U, Angadi KK, Reddy VS, Reddy GB. Neuroprotective role of vitamin B12 in streptozotocin-induced type 1 diabetic rats. Chem Biol Interact 2024; 387:110823. [PMID: 38049026 DOI: 10.1016/j.cbi.2023.110823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/17/2023] [Accepted: 11/29/2023] [Indexed: 12/06/2023]
Abstract
Chronic hyperglycemia-induced neuropathological changes include neuronal apoptosis, astrogliosis, decrease in neurotrophic support, impaired synaptic plasticity, and impaired protein quality control (PQC) system. Vitamin B12 is indispensable for neuronal development and brain function. Several studies reported the neuroprotective effect of B12 supplementation in diabetic patients. However, the underlying molecular basis for the neuroprotective effect of B12 supplementation in diabetes needs to be thoroughly investigated. Two-month-old Sprague-Dawley rats were randomly assigned into three groups: Control (CN), diabetes (D; induced with streptozotocin; STZ), and diabetic rats supplemented with vitamin B12 (DBS; vitamin B12; 50 μg/kg) for four months. At the end of 4 months of experimentation, the brain was dissected to collect the cerebral cortex (CC). The morphology of CC was investigated with H&E and Nissl body staining. Neuronal apoptosis was determined with TUNEL assay. The components of neurotrophic support, astrogliosis, synaptic plasticity, and PQC processes were investigated by immunoblotting and immunostaining methods. H& E, Nissl body, and TUNEL staining revealed that diabetes-induced neuronal apoptosis and degeneration. However, B12 supplementation ameliorated the diabetes-induced neuronal apoptosis. Further, B12 supplementation restored the markers of neurotrophic support (BDNF, NGF, and GDNF), and synaptic plasticity (SYP, and PSD-95) in diabetic rats. Interestingly, B12 supplementation also attenuated astrogliosis, ER stress, and ameliorated autophagy-related proteins in diabetic rats. Overall, these findings suggest that B12 acts as a neuroprotective agent by inhibiting the neuropathological changes in STZ-induced type 1 diabetes. Thus, B12 supplementation could produce beneficial outcomes including neuroprotective effects in diabetic patients.
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Affiliation(s)
- Udaykanth Suryavanshi
- Biochemistry Division, ICMR-National Institute of Nutrition, Tarnaka, Hyderabad, India
| | - Kiran Kumar Angadi
- Biochemistry Division, ICMR-National Institute of Nutrition, Tarnaka, Hyderabad, India
| | - V Sudhakar Reddy
- Biochemistry Division, ICMR-National Institute of Nutrition, Tarnaka, Hyderabad, India.
| | - G Bhanuprakash Reddy
- Biochemistry Division, ICMR-National Institute of Nutrition, Tarnaka, Hyderabad, India.
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Liu L, Zhou J, Chen C, Qu Y, Wang J, Lu F, Liu Y, Cai J, Ji S, Li Y, Gu H, Zhao F, Lyu Y, Shi X. Vitamin B 12 is associated negatively with anemia in older Chinese adults with a low dietary diversity level: evidence from the Healthy Ageing and Biomarkers Cohort Study (HABCS). BMC Geriatr 2024; 24:18. [PMID: 38178043 PMCID: PMC10768404 DOI: 10.1186/s12877-023-04586-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 12/11/2023] [Indexed: 01/06/2024] Open
Abstract
OBJECTIVE The associations between plasma vitamin B12 level and anemia under different dietary patterns in elderly Chinese people are poorly understood. We aimed to examine the associations between plasma vitamin B12 levels and anemia under different dietary patterns in adults aged 65 years and older in nine longevity areas in China. METHODS A total of 2405 older adults completed a food frequency questionnaire at the same time as a face-to-face interview. The dietary diversity score (DDS) was assessed based on the food frequency questionnaire, with the low DDS group referring to participants with a DDS score ≤ 4 points. Vitamin B12 levels were divided into two groups of high (>295 pg/mL) and low (≤ 295 pg/mL) with the median used as the cut-off point. Sub-analyses were also performed on older adults divided into tertiles of vitamin B12 levels: low (< 277 pg/mL), medium (277-375 pg/mL) and high (> 375 pg/mL) to study the association of these levels with anemia. RESULTS Six hundred ninety-five (28.89%) of these people were diagnosed with anemia and had a mean age of 89.3 years. Higher vitamin B12 levels were associated with a decreased risk of anemia (multi-adjusted OR, 0.59, [95% CI, 0.45 ~ 0.77] P < 0.001) in older adults with a low DDS, whereas no significant association between vitamin B12 levels and anemia was found in older adults with a high DDS in a full-model after adjustment for various confounding factors (multi-adjusted OR, 0.88, [95% CI, 0.65 ~ 1.19], P = 0.41). CONCLUSION The relationship between vitamin B12 levels and the prevalence of anemia was significant only when the level of dietary diversity in the older adults was relatively low. The dietary structure of the population should be taken into consideration in combination in order to effectively improve anemia status by supplementing vitamin B12.
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Affiliation(s)
- Ling Liu
- Hospital of Beijing Forestry University, Beijing, 100083, China
| | - Jinhui Zhou
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Chen Chen
- Beijing Municipal Health Commission Information Center, Beijing Municipal Health Commission Policy Research Center, Beijing, 100034, China
| | - Yingli Qu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Jun Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Feng Lu
- Beijing Municipal Health Commission Information Center, Beijing Municipal Health Commission Policy Research Center, Beijing, 100034, China
| | - Yingchun Liu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Jiayi Cai
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Saisai Ji
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Yawei Li
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Heng Gu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Feng Zhao
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China
| | - Yuebin Lyu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China.
| | - Xiaoming Shi
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China.
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Siddiqua TJ, Akhtar E, Haq MA, Shahab-Ferdows S, Hampel D, Islam S, Ahmed T, Allen LH, Raqib R. Effects of vitamin B12 supplementation on oxidative stress markers and pro-inflammatory cytokines during pregnancy and postpartum among Bangladeshi mother-child pairs. BMC Nutr 2024; 10:3. [PMID: 38172996 PMCID: PMC10765711 DOI: 10.1186/s40795-023-00785-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 10/30/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND There is limited research to determine whether vitamin B12 (B12) supplementation during pregnancy and lactation is protective against oxidative stress and pro-inflammatory cytokines and whether this effect is transferred to breastfed infants via milk. In addition, associations among maternal plasma/ milk and infant B12 status and immune function markers are poorly characterized. OBJECTIVES To evaluate effects of oral B12 supplementation during pregnancy and postpartum on maternal and infant 8-hydroxy-2'-deoxyguanosine (8-OH-dG, an oxidative stress marker) and proinflammatory cytokine levels, and examine associations between maternal plasma, breastmilk and infant B12 status as well as immune function markers. METHOD In a blinded, placebo-controlled trial, Bangladeshi women (n = 68, 18-35 years, hemoglobin < 11 g/dL, gestational weeks 11-14) received either 250 μg/day B12 or placebo throughout pregnancy up to 3-months postpartum. Samples were collected from mothers at baseline and 3-months postpartum and from infants at 3-months to measure B12 status indicators, 8-OH-dG and proinflammatory cytokines. RESULTS Maternal postpartum B12 was positively associated with infant plasma B12. Higher milk B12 concentrations were associated with increased infant B12 (beta (β) = 277, 95% confidence interval (CI) = (132, 423), p<0.001) and lower total homocysteine (β = -7.63, 95% CI = (-12.40, -2.86), p = 0.002) levels. Maternal B12 supplementation reduced plasma 8-OH-dG concentrations among postpartum mothers and infants compared to the placebo group. Supplementation increased plasma TNF-α and IL-6 levels among mothers and IL-10 and IFN-γ levels among infants. CONCLUSION Milk and maternal plasma B12 at 3 months were associated with infant B12. Maternal B12 supplementation modulates 8-OH-dG and several cytokines which may protect against immune response-induced oxidative stress. TRIAL REGISTRATION (clinicaltrials.gov: NCT01795131- 1st posted on 20/02/2013).
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Affiliation(s)
| | - Evana Akhtar
- International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Md Ahsanul Haq
- International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
| | | | - Daniela Hampel
- USDA ARS Western Human Nutrition Research Center, Davis, CA, USA
- Department of Nutrition, University of California, Davis, CA, USA
| | - Sharmin Islam
- International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Tahmeed Ahmed
- International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Lindsay H Allen
- USDA ARS Western Human Nutrition Research Center, Davis, CA, USA
| | - Rubhana Raqib
- International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
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Lalley A, Bawa S, Harmouche E. Ramen noodle neuropathy: an atypical case of partial paralysis from malnutrition. Am J Emerg Med 2024; 75:198.e7-198.e10. [PMID: 37805367 DOI: 10.1016/j.ajem.2023.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/10/2023] [Accepted: 09/17/2023] [Indexed: 10/09/2023] Open
Abstract
INTRODUCTION Due to a COVID-related job loss resulting in financial and food insecurity, a 28-year-old woman initiated a diet consisting solely of one cup of ramen noodles daily for twenty-two months, leading to 27 kg of weight loss. Ramen noodles are low in calories and lack key nutrients, including potassium, chloride, and vitamin B12. CASE DESCRIPTION The patient presented to the emergency department with acute, worsening weakness and paresthesias in her left wrist and hand. Exam revealed no other abnormalities aside from a cachectic appearance. Labs revealed marked hypokalemia, hypochloremia, lactic acidosis, a mixed metabolic alkalosis with respiratory acidosis, and low levels of zinc and copper. An EKG revealed a prolonged QT interval. After a neurology and psychiatry consult, the patient was admitted for failure to thrive with malnutrition, peripheral neuropathy, hypokalemia, and an acid-base disorder. An MRI of the brain was unremarkable. Studies of other nutritional deficiencies, autoimmune conditions, and sexually transmitted infections were unremarkable. The patient received food and vitamin supplementation, was monitored for re-feeding syndrome, and had a significant recovery. DISCUSSION After stroke, spinal injury, multiple sclerosis, and the most common focal mononeuropathies were ruled out, the clinical focus turned to nutritional deficiencies, the most significant of which was hypokalemia. Prior research has shown that severe hypokalemia can lead to weakness. It has also shown that chronically insufficient dietary intake is a common cause of hypokalemia. This case, with its partial paralysis of a unilateral upper extremity, may add to the known clinical manifestations of hypokalemia. We review the role of hypokalemia and hypochloremia in acid-base dynamics. Etiologies and clinical manifestations of cobalamin, thiamine, pyridoxine, and copper deficiencies, along with lead toxicity, are also discussed. Diagnostic clarity of mononeuropathies in the context of malnutrition and hypokalemia can be aided by urine potassium levels prior to repletion, neuroimaging that includes the cervical spine, and follow-up electromyography.
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Affiliation(s)
- Adam Lalley
- Department of Emergency Medicine, Maimonides Medical Center, 965 48th St, Brooklyn, NY 11219 USA.
| | - Sabrina Bawa
- Department of Emergency Medicine, University of Connecticut, 263 Farmington Ave, Farmington, CT 06030 USA
| | - Elie Harmouche
- Department of Emergency Medicine, Maimonides Medical Center, 965 48th St, Brooklyn, NY 11219 USA
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Oliphant K, Cruz Ayala W, Ilyumzhinova R, Mbayiwa K, Sroka A, Xie B, Andrews B, Keenan K, Claud EC. Microbiome function and neurodevelopment in Black infants: vitamin B 12 emerges as a key factor. Gut Microbes 2024; 16:2298697. [PMID: 38303501 PMCID: PMC10841033 DOI: 10.1080/19490976.2023.2298697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/20/2023] [Indexed: 02/03/2024] Open
Abstract
The early life gut microbiome affects the developing brain, and therefore may serve as a target to support neurodevelopment of children living in stressful and under-resourced environments, such as Black youth living on the South Side of Chicago, for whom we observe racial disparities in health. Microbiome compositions/functions key to multiple neurodevelopmental facets have not been studied in Black children, a vulnerable population due to racial disparities in health; thus, a subsample of Black infants living in urban, low-income neighborhoods whose mothers participated in a prenatal nutrition study were recruited for testing associations between composition and function of the gut microbiome (16S rRNA gene sequencing, shotgun metagenomics, and targeted metabolomics of fecal samples) and neurodevelopment (developmental testing, maternal report of temperament, and observed stress regulation). Two microbiome community types, defined by high Lachnospiraceae or Enterobacteriaceae abundance, were discovered in this cohort from 16S rRNA gene sequencing analysis; the Enterobacteriaceae-dominant community type was significantly negatively associated with cognition and language scores, specifically in male children. Vitamin B12 biosynthesis emerged as a key microbiome function from shotgun metagenomics sequencing analysis, showing positive associations with all measured developmental skills (i.e., cognition, language, motor, surgency, effortful control, and observed stress regulation). Blautia spp. also were identified as substantial contributors of important microbiome functions, including vitamin B12 biosynthesis and related vitamin B12-dependent microbiome functions, anti-inflammatory microbial surface antigens, competitive mechanisms against pathobionts, and production of antioxidants. The results are promising with respect to the potential for exploring therapeutic candidates, such as vitamin B12 nutritional or Blautia spp. probiotic supplementation, to support the neurodevelopment of infants at risk for experiencing racial disparities in health.
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Affiliation(s)
| | | | - Rimma Ilyumzhinova
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, USA
| | - Kimberley Mbayiwa
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, USA
| | - Anna Sroka
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, USA
| | - Bingqing Xie
- Department of Medicine, University of Chicago, Chicago, USA
| | - Bree Andrews
- Department of Pediatrics, University of Chicago, Chicago, USA
| | - Kate Keenan
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, USA
| | - Erika C. Claud
- Department of Pediatrics, University of Chicago, Chicago, USA
- Department of Medicine, University of Chicago, Chicago, USA
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Dadgarnia M, Mandegari M, Zand V, Vaziribozorg S, Zare-Zardini H, Mousaviyazdi K, Kheradmandi M. The effect of vitamin B12 on idiopathic tinnitus. Am J Otolaryngol 2024; 45:104028. [PMID: 37647778 DOI: 10.1016/j.amjoto.2023.104028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
INTRODUCTION Tinnitus is one of the most important challenges in the field of ear, nose and throat diseases. The aim of this study was to evaluate the effect of vitamin B12 on idiopathic tinnitus. MATERIAL AND METHODS In this double-blind clinical trial study, 140 patients with idiopathic tinnitus were divided into two groups, the group receiving vitamin B12 and the group receiving placebo. The first group received vitamin B12 for a month and the other group received placebo. All patients filled a THI questionnaire before the participation, one month and three months after the participation. VAS evaluation questionnaires were also filled for the patients before the participation, one month and three months after the participation. The effect of vitamin B12 on tinnitus was also assessed according to hearing loss status. The two groups were also compared regarding the side effects. RESULTS There was no significant differences between two groups regarding age (p.value = 0.523), gender (females (p.value = 0.810) and males (p.value = 0.789), and hearing loss status (p value = 0.651). According to VAS score, there was no significant statistical differences in tinnitus severity in each group (B12 group, p.value = 0.851 and placebo group, p.value = 0.386). There was no significant statistical differences in tinnitus severity based on VAS score between two groups before the participation (p.value = 0.560), one month (p.value = 0.485) and three months (p.value = 0.254) after the participation. According to THI criterion, there was no significant statistical differences in tinnitus severity in each group (B12 group, p.value = 0.259 and placebo group, p.value = 0.521). There was no significant statistical differences in tinnitus severity based on THI score between two groups before the participation (p.value = 0.651), one month (p.value = 0.125) and three months (p.value = 0.089) after the participation. None of the patients of the two groups had any noticeable side effects. The mean of VAS and THI also had no statistically significant difference before and after the intervention in term of hearing loss status (p.value>0.05). These results were not significantly different between the two groups in term of hearing loss status (p value>0.05). CONCLUSION The result of this study indicated that vitamin B12 has no distinctive effect on reducing tinnitus severity.
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Affiliation(s)
- Mohammadhossein Dadgarnia
- Department of Otolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Mandegari
- Department of Otolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Vahid Zand
- Department of Otolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sedighe Vaziribozorg
- Department of Otolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hadi Zare-Zardini
- Hematology and Oncology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Kimia Mousaviyazdi
- Department of Anesthesiology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammadali Kheradmandi
- Department of Otolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Kuloğlu N, Karabulut D, Kaymak E, Akin AT, Ceylan T, Yıldırım AB, Yakan B. Effect of vitamin B12 on methotrexate-induced cardiotoxicity in rats. Iran J Basic Med Sci 2024; 27:733-739. [PMID: 38645491 PMCID: PMC11024404 DOI: 10.22038/ijbms.2024.74161.16120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 01/15/2024] [Indexed: 04/23/2024]
Abstract
Objectives Methotrexate (MTX) is a drug with anti-inflammatory and immunosuppressive effects and is also a folic acid antagonist. Our aim in this study is to determine the molecular mechanisms of cardiotoxicity caused by MTX, a chemotherapeutic drug, and to evaluate the protective effects of vitamin B12 on this toxicity. Materials and Methods A total of 32 rats were used in our study and 4 groups were formed. Control group, Vit B12 group (3 μg/kg B12 for 15 days, IP), MTX group (20 mg/kg MTX single dose on day 8 of the experiment, IP), MTX +Vit B12 group (3 μg/kg, IP ), Vit B12 throughout the 15 days, and a single dose of 20 mg/kg MTX (IP) on day 8 of the experiment. Immunohistochemically, expressions of hypoxia-inducible factor 1α (HIF1-α), vascular endothelial growth factor receptor-2 (VEGFR-2), erythropoietin (EPO), and interleukin-6 (IL-6) were evaluated in the heart tissue. Total catalase (CAT), superoxide dismutase (SOD), and malondialdehyde (MDA) levels were measured in the heart tissue. At the same time, ANP and NT-proBNP levels were measured in the blood serum. Results In the study, the expression of HIF1-α and VEGFR-2 increased significantly in the MTX group, while IL-6 and EPO significantly decreased. At the same time, CAT and SOD levels were significantly decreased and MDA levels increased significantly in the MTX group. While vitamin B12 significantly corrected all these values, it also greatly reduced the increases in ANP and NT-proBNP levels caused by MTX. Conclusion It is important to use Vit B12 before and after MTX administration to replace the folate that MTX has reduced.
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Affiliation(s)
- Nurhan Kuloğlu
- Healthcare Services Department, Niğde Ömer Halisdemir University, Nigde, Turkey
| | - Derya Karabulut
- Histology-Embryology Department, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Emin Kaymak
- Histology-Embryology Department, Faculty of Medicine, Bozok University, Yozgat, Turkey
| | - Ali Tuğrul Akin
- Department of Medical Biology, Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Tayfun Ceylan
- Histology-Embryology Department, Faculty of Dentistry, Cappadocia University, Nevşehir, Turkey
| | - Ayşegül Burçin Yıldırım
- Gaziantep Islamic Science and Technology University, Department of Histology-Embryology, Gaziantep, Turkey
| | - Birkan Yakan
- Histology-Embryology Department, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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26
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Meskelis L, F Agondi R, Duarte LGR, de Carvalho MD, Sato ACK, Picone CSF. New approaches for modulation of alginate-chitosan delivery properties. Food Res Int 2024; 175:113737. [PMID: 38129047 DOI: 10.1016/j.foodres.2023.113737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/07/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
Alginate is a biopolymer widely used on delivery systems when bioactive protection at acidic pH is required, while chitosan can enhance mucoadhesion and controlled release at alkaline pHs. In this work, alginate ionotropic gelation and electrostatic complexation to chitosan were evaluated concomitantly or in a two-step approach to improve the delivery properties of systems in different pHs. The effect of pH on alginate gelation and chitosan interactions were also evaluated. Alginate microspheres were prepared by ionotropic gelation in CaCl2 at different pH values (2.5 and 6.0) by extrusion. Complexation with chitosan was carried out during alginate ionotropic gelation (one-step approach) or after alginate gel formation (two-step approach). Alginate microparticles without chitosan showed larger pores and lower mechanical strength. Extruded microspheres at pH 6.0 were more stable to pH and showed smaller pores than the formed at pH 2.5. One-step production retained a large amount of bioactive at pH 7.0 and resulted in lower release at the pH of intestinal digestion. The two-step approach retained less amount of bioactive but confer more protection to the pH of the stomach phase and higher release in pH of the intestinal phase than one-step samples. These results indicate that the formation of alginate gels by ionotropic gelation followed by the complexation with chitosan (in two-step) is promising for the transport and delivery of bioactives into intestinal conditions, whereas the ionotropic gelation concomitantly to electrostatic complexation (one-step approach) is indicated to the delivery of bioactives into lower pH environments.
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Affiliation(s)
- Ludmilla Meskelis
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil
| | - Raquel F Agondi
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil
| | - Larissa G R Duarte
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil
| | - Matheus D de Carvalho
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil
| | - Ana Carla K Sato
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil
| | - Carolina S F Picone
- School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), 13083-862 Campinas, SP, Brazil.
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Pardo Lledias J, Martín Millán M, Mazariegos Cano JA, Aimar Marco C, Arias Martínez N, San Pedro Careaga B, Urizar Ursua E, Insua García MC, Lavin Gómez BA, Hernández Hernández JL. Incidental detection of raised serum levels of vitamin B12 and its association with neoplasms. Rev Clin Esp 2024; 224:10-16. [PMID: 38065526 DOI: 10.1016/j.rceng.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND AND OBJECTIVES Elevated serum levels of vitamin B12 have been associated with oncohematological diseases. However, the relevance of its incidental detection in subjects without a previous diagnosis of cancer is unknown. The aim of this study was to evaluate the relationship between incidental hypercobalaminemia (vitamin B12 > 1000 pg/mL) and the diagnosis of a tumor process in patients without a diagnosis and to establish the risk factors. MATERIAL AND METHODS Retrospective observational study of a cohort of patients with hypercobalaminemia. The incidence of neoplasms was compared with a cohort of patients with vitamin B12 levels <1000 pg/mL. RESULTS Vitamin B12 determinations of 4800 subjects were selected. Of them, 345 (7.1%) had levels >1000 pg/mL. 68 (28.4%) were excluded due to exogenous administration, 12 (5%) due to insufficient data and 15 (3%) due to having an active neoplasia, selecting 250 patients, with a median follow-up of 22 (IQR 12-39) months. Structural liver disease was detected in 59 (23.6%). 18.2% (44 patients) had solid organ cancer and 17 (7.1%) had malignant hemopathy. The average time from the detection of hypercobalaminemia to the diagnosis of cancer was about 10 months. The median until the diagnosis of neoplasia was higher in the high vitamin B12 group (13 vs. 51 months p < 0.001). Hypercobalaminemia (HR 11.8; 95% CI 2.8-49.6; p = 0.001) and smoking (HR 4.0; 95% CI, 2.15-7.59; p < 0.001) were independent predictors of neoplasia in the multivariate analysis. CONCLUSIONS Incidental detection of serum vitamin B12 levels >1000 pg/mL is high in the population. The diagnosis of solid organ and hematological neoplasia is frequent during the following year of follow-up, with hypercobalaminemia and smoking being predictors of a higher risk of cancer.
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Affiliation(s)
- J Pardo Lledias
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain.
| | - M Martín Millán
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
| | - J A Mazariegos Cano
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
| | - C Aimar Marco
- Servicio de Pediatría, Hospital Universitario Araba, Gasteiz, Spain
| | | | - B San Pedro Careaga
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
| | - E Urizar Ursua
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
| | - M C Insua García
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
| | - B A Lavin Gómez
- Servicio de Análisis Clínico, Hospital Unversitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - J L Hernández Hernández
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Cantabria, Spain
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Karbalaei-Saleh S, Yousefi S, Honarvar M. Optimization of vitamin B12 nano-emulsification and encapsulation using spontaneous emulsification. Food Sci Biotechnol 2024; 33:399-415. [PMID: 38222915 PMCID: PMC10786798 DOI: 10.1007/s10068-023-01357-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/27/2023] [Accepted: 05/26/2023] [Indexed: 01/16/2024] Open
Abstract
In this study, the use of low-energy methods for nanoemulsification of vitamin B12 was investigated to protect this bioactive substance. The effects of sunflower oil concentrations (4-8%), Tween 80 (8-16%), and vitamin B12 (5-15%) on the physicochemical properties of B12 nanoemulsion were evaluated using response surface methodology (RSM). The results indicated that the quadratic model was the most fitting model for experimental data. Optimization revealed that the optimal formulation contained 6.5% sunflower oil, 9.6% Tween 80, and 13% vitamin B12, resulting in maximum efficiency, viscosity, and vitamin B12 content, as well as minimum pH, turbidity, p-Anisidine index, particle size, and polydispersity index (PDI). Under optimal conditions, pH, viscosity, turbidity, efficiency, vitamin B12, p-Anisidine index, PDI, and particle size were 7.24, 17.0024 cp, 2.19, 51.98%, 5.54 ppm, 0.01, 0.34, and 322 nm, respectively. This study highlights the effectiveness of spontaneous emulsification as a carrier for the encapsulation of bioactive compounds.
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Affiliation(s)
- Shabnam Karbalaei-Saleh
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shima Yousefi
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Masoud Honarvar
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
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29
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Zhao X, Du Q, Qiu H, Zhao Y, Wang S, Li J, Dong C. Synthesis of Yellow Fluorescence Carbon Dots for the Applications of Vitamin B 12 Detection and Cell Imaging. J Fluoresc 2023:10.1007/s10895-023-03558-9. [PMID: 38157082 DOI: 10.1007/s10895-023-03558-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
In this work, bright yellow fluorescent and multifunctional carbon dots (N-CDs) were prepared by hydrothermal method from O-phenylenediamine and 4-aminobenzoic acid. The fluorescence characterization showed that the N-CDs possessed good optical properties (QY = 32%) and excitation dependent multi-color emission. By exciting with 390 nm, the strong selective interaction of VB12 with N-CDs could result in a sharp decrease in the luminescence of N-CDs at 567 nm. An efficient fluorescence sensor in aqueous solution was constructed which could linearly respond VB12 in wide concentration ranges of 0-90 μM and 140-250 μM. The linear correlation coefficients of N-CDs and VB12 were 0.9950 and 0.9968, respectively, and the detection limit was 0.119 μM. N-CDs were performed for sensitive determination of VB12 in real samples. Moreover, the N-CDs were exploited to image cell. This N-CDs was a sensitive fluorescence probe to monitor VB12 and presented prospective potential in living cells imaging. Schematic diagram of the synthesis process and application research of N-CDs.
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Affiliation(s)
- Xiaoyu Zhao
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Qian Du
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Huiying Qiu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Yaqin Zhao
- Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Songbai Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Junfen Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
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Li J, Kumar A, Lewis JC. Non-native Intramolecular Radical Cyclization Catalyzed by a B 12 -Dependent Enzyme. Angew Chem Int Ed Engl 2023; 62:e202312893. [PMID: 37874184 DOI: 10.1002/anie.202312893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 10/25/2023]
Abstract
Despite the unique reactivity of vitamin B12 and its derivatives, B12 -dependent enzymes remain underutilized in biocatalysis. In this study, we repurposed the B12 -dependent transcription factor CarH to enable non-native radical cyclization reactions. An engineered variant of this enzyme, CarH*, catalyzes the formation γ- and δ-lactams through either redox-neutral or reductive ring closure with marked enhancement of reactivity and selectivity relative to the free B12 cofactor. CarH* also catalyzes an unusual spirocyclization by dearomatization of pendant arenes to produce bicyclic 1,3-diene products instead of 1,4-dienes provided by existing methods. These results and associated mechanistic studies highlight the importance of protein scaffolds for controlling the reactivity of B12 and expanding the synthetic utility of B12 -dependent enzymes.
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Affiliation(s)
- Jianbin Li
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
| | - Amardeep Kumar
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
| | - Jared C Lewis
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
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31
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Song S, Song BM, Park HY. Folate, vitamin B12, and homocysteine status in the Korean population: data from the 2013-2015 Korea National Health and Nutrition Examination Survey. Epidemiol Health 2023; 46:e2024007. [PMID: 38186250 DOI: 10.4178/epih.e2024007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/23/2023] [Indexed: 01/09/2024] Open
Abstract
OBJECTIVES We aimed to assess the serum folate, vitamin B12, and homocysteine status in Korean adolescents and adults using national data. METHODS Blood samples were collected from participants aged ≥10 years in the Korea National Health and Nutrition Examination Survey 2013-2015. The stored serum samples were used to measure folate, vitamin B12, and homocysteine concentrations. A total of 8,016 participants were included in this analysis. Unweighted descriptive statistics and adjusted geometric means of the B vitamins and homocysteine concentrations were estimated. RESULTS Females had higher serum folate and vitamin B12 concentrations and lower serum homocysteine concentrations than males. Folate deficiency (<6.8 nmol/L) and hyperhomocysteinemia (>15 μmol/L) were found in 8.6% and 11.8% of males, respectively. Approximately 3% of males had low or marginally low vitamin B12 status (≤221 pmol/L). Folate and vitamin B12 deficiencies and hyperhomocysteinemia were found in <2% of females. Suboptimal folate status was prevalent among adolescents and young adults, while suboptimal vitamin B12 status and hyperhomocysteinemia were relatively higher in older adults. Adjusted mean homocysteine concentrations were sharply decreased from the first to second decile of serum folate in males. CONCLUSIONS In the Korean population, the proportion of males who achieved desirable folate and homocysteine concentrations were lower than those of females. Although most Koreans have adequate vitamin B12, a suboptimal folate status is common, particularly among adolescents and young adults. These findings could establish a foundation for public health initiatives aimed at improving folate levels in the Korean population.
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Affiliation(s)
- Sihan Song
- Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, Cheongju, Korea
| | - Bo Mi Song
- Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, Cheongju, Korea
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32
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Abuyaman O, Abdelfattah A, Shehadeh-Tout F, Deeb AA, Hatmal MM. Vitamin B12 insufficiency and deficiency: a review of nondisease risk factors. Scand J Clin Lab Invest 2023; 83:533-539. [PMID: 38145316 DOI: 10.1080/00365513.2023.2297357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/17/2023] [Indexed: 12/26/2023]
Abstract
Vitamin B12 deficiency and insufficiency can lead to both hematological and neurological impairments. This review examines nondisease causes and risk factors associated with dietary availability, such as eating habits, food processing, cooking techniques, and bioavailability, as well as increased physiological needs and iatrogenic factors linked to medication use or surgical procedures. As a result of these nondisease influences, groups at higher risk include vegans, vegetarians, older adults, individuals with limited diets, breastfed and preterm infants, and those who primarily consume foods prepared or cooked in ways that reduce vitamin B12 content, as well as individuals on certain medications or who have undergone specific surgeries. Recognizing these diverse risk factors helps develop strategies for prevention and intervention to minimize the adverse health effects related to B12 deficiency and insufficiency.
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Affiliation(s)
- Omar Abuyaman
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, Jordan
| | - Ali Abdelfattah
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, Jordan
| | - Faten Shehadeh-Tout
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, Jordan
| | - Ahmad A Deeb
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Ma'mon M Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, Jordan
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33
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Gernez E, Bennis A, Diesnis R, Niguet JP, Grzych G. Awareness of health care related to nitrous oxide abuse for diagnosis, treatment and follow-up. Ir J Med Sci 2023; 192:3087-3089. [PMID: 36867372 DOI: 10.1007/s11845-023-03327-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023]
Affiliation(s)
- Emeline Gernez
- CHU de Lille-Centre de Biologie Pathologie Génétique-Service Hormonologie Métabolisme Nutrition Oncologie-1 boulevard du professeur Jules Leclercq, 59000, Lille, France
| | - Anas Bennis
- CH de Roubaix, Service de Neurologie, 59100, Roubaix, France
| | - Remy Diesnis
- CH de Roubaix, Services des Urgences Adultes-SMUR, 59100, Roubaix, France
| | - Jean Paul Niguet
- Groupement des Hôpitaux de l'Institut Catholique de Lille, Hôpital Saint Vincent de Paul, Service de Neurologie, 59000, Lille, France
| | - Guillaume Grzych
- CHU de Lille-Centre de Biologie Pathologie Génétique-Service Hormonologie Métabolisme Nutrition Oncologie-1 boulevard du professeur Jules Leclercq, 59000, Lille, France.
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34
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Monasso GS, Hoang TT, Mancano G, Fernández-Barrés S, Dou J, Jaddoe VW, Page CM, Johnson L, Bustamante M, Bakulski KM, Håberg SE, Ueland PM, Battram T, Merid SK, Melén E, Caramaschi D, Küpers LK, Sunyer J, Nystad W, Heil SG, Schmidt RJ, Vrijheid M, Sharp GC, London SJ, Felix JF. A meta-analysis of epigenome-wide association studies on pregnancy vitamin B12 concentrations and offspring DNA methylation. Epigenetics 2023; 18:2202835. [PMID: 37093107 PMCID: PMC10128528 DOI: 10.1080/15592294.2023.2202835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/22/2022] [Accepted: 01/06/2023] [Indexed: 04/25/2023] Open
Abstract
Circulating vitamin B12 concentrations during pregnancy are associated with offspring health. Foetal DNA methylation changes could underlie these associations. Within the Pregnancy And Childhood Epigenetics Consortium, we meta-analysed epigenome-wide associations of circulating vitamin B12 concentrations in mothers during pregnancy (n = 2,420) or cord blood (n = 1,029), with cord blood DNA methylation. Maternal and newborn vitamin B12 concentrations were associated with DNA methylation at 109 and 7 CpGs, respectively (False Discovery Rate P-value <0.05). Persistent associations with DNA methylation in the peripheral blood of up to 482 children aged 4-10 y were observed for 40.7% of CpGs associated with maternal vitamin B12 and 57.1% of CpGs associated with newborn vitamin B12. Of the CpGs identified in the maternal meta-analyses, 4.6% were associated with either birth weight or gestational age in a previous work. For the newborn meta-analysis, this was the case for 14.3% of the identified CpGs. Also, of the CpGs identified in the newborn meta-analysis, 14.3% and 28.6%, respectively, were associated with childhood cognitive skills and nonverbal IQ. Of the 109 CpGs associated with maternal vitamin B12, 18.3% were associated with nearby gene expression. In this study, we showed that maternal and newborn vitamin B12 concentrations are associated with DNA methylation at multiple CpGs in offspring blood (PFDR<0.05). Whether this differential DNA methylation underlies associations of vitamin B12 concentrations with child health outcomes, such as birth weight, gestational age, and childhood cognition, should be further examined in future studies.
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Affiliation(s)
- Giulietta S. Monasso
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Thanh T. Hoang
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Giulia Mancano
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School Population Health Sciences, University of Bristol, Bristol, UK
| | - Sílvia Fernández-Barrés
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - John Dou
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, USA
| | - Vincent W.V. Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Christian M. Page
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Laura Johnson
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - Mariona Bustamante
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - Kelly M. Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, USA
| | - Siri E. Håberg
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Thomas Battram
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Simon K. Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children’s Hospital, South General Hospital, Stockholm, Sweden
| | - Doretta Caramaschi
- College of Life and Environmental Sciences, Department of Psychology, University of Exeter, Exeter, UK
| | - Leanne K. Küpers
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Jordi Sunyer
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Wenche Nystad
- Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Sandra G. Heil
- Department of Clinical Chemistry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Rebecca J. Schmidt
- Department of Public Health Sciences, School of Medicine, University of California Davis, Davis, USA
- The UC Davis MIND Institute, School of Medicine, University of California Davis, Sacramento, USA
| | - Martine Vrijheid
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - Gemma C. Sharp
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School Population Health Sciences, University of Bristol, Bristol, UK
| | - Stephanie J. London
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Janine F. Felix
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
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35
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Clément A, Clément P, Viot G, Menezo YJR. The importance of preconception Hcy testing: identification of a folate trap syndrome in a woman attending an assisted reproduction program. J Assist Reprod Genet 2023; 40:2879-2883. [PMID: 37819550 PMCID: PMC10656398 DOI: 10.1007/s10815-023-02964-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2023] [Indexed: 10/13/2023] Open
Abstract
Methylation is a ubiquitous and permanent key biochemical process playing a major role in gametogenesis and embryogenesis in relation to epigenetics and imprinting. Methylation relies on a unique cofactor S-Adenosyl Methionine: SAM. Release of the methyl group onto target molecules is followed by liberation of S-Adenosyl Homocysteine (SAH), and then homocysteine (Hcy), both potent inhibitors of the methylation process. Defective recycling of homocysteine, leading to Hyperhomocysteinemia, is mainly due to reduced activity of MTHFR (Methylene TetraHydroFolate Reductase). However, we described here, in a woman attending an ART program, a rather rare syndrome: The Folate trap syndrome. Due to vitamin B12 deficiency (malabsorption), Hcy cannot be recycled to methionine by the methionine synthase. Transmethylation activity is weak and leads to Hhcy (Hyperhomocysteinhemia). Her Hhcy, over 16µM, was resistant to 5MTHF (5 Methyltetrahydrofolate) associated with a support of the one carbon cycle, a classical efficient treatment for elevated homocysteine. Treatment with Methylcobalamine (associated with adenosyl Cobalamine) allowed a Hcy drop down to 10 µM. Knowing the pleiotropic negative impact of Hcy on gametes, embryos and pregnancy in general, we strongly recommend a Hcy dosage in both members of couples seeking treatment for pregnancy.
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Affiliation(s)
- Arthur Clément
- Laboratoire Clement, Genetics and IVF, 17 Avenue d'Eylau, 75016, Paris, France
| | - Patrice Clément
- Laboratoire Clement, Genetics and IVF, 17 Avenue d'Eylau, 75016, Paris, France
| | - Géraldine Viot
- Cabinet Médical de génétique Clinique, 74 Avenue Paul Doumer, 75116, Paris, France
| | - Yves J R Menezo
- Laboratoire Clement, Genetics and IVF, 17 Avenue d'Eylau, 75016, Paris, France.
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36
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Liu Y, Chang Y, Wang Q, Huang W, Ma C, Su J. Effect of blocking the haem synthesis pathway and weakening the haem synthesis pathway for sirohaem on the growth of and vitamin B 12 synthesis in Ensifer adhaerens Casida A. Bioprocess Biosyst Eng 2023; 46:1825-1835. [PMID: 37930436 DOI: 10.1007/s00449-023-02939-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/18/2023] [Indexed: 11/07/2023]
Abstract
To block and weaken the bacterial branched VB12 synthetic metabolic pathway, homologous recombination technology was used to knock out the sirohaem synthase gene cysG located in the chromosome and the endogenous A plasmid of the Ensifer adhaerens Casida A strain, and the expression of the uroporphyrinogen III decarboxylase gene hemE was weakened by weak promoter substitution. The growth of the engineered strains and the production of VB12 and haem were analysed and measured in the engineered strains, aiming to provide a new strategy for enhancement of VB12 biosynthesis. The results showed that the chromosomal cysG gene knockout strain ΔcysG, endogenous A plasmid cysG gene knockout strain ΔpAcysG and cysG gene double knockout strain ΔcysGΔpAcysG grew normally, with VB12 yield increases of 19.9%, 11.2%, and 27.4% compared to the starting strain, respectively. In the background of the cysG gene knockout strain, the expression of the hemE gene was weakened, resulting in the generation of the strain ΔcysGΔpAcysG-E-pdnaD, and the VB12 yield of ΔcysGΔpA cysG-E-pdnaD reached 114.17 ± 5.77 mg L-1, an increase of 45.1% compared to the yield of the original strain. The above results indicate that the strategy of increasing VB12 production by knocking out the haem synthesis pathway and weakening the haem synthesis pathway is effective.
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Affiliation(s)
- Yongheng Liu
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China
| | - Yongyong Chang
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China
| | - Qi Wang
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China
| | - Wei Huang
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China
| | - Cilang Ma
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China
| | - Jianyu Su
- School of Life Science, Ningxia University, No. 539, Helan Moutain-West Road, Xixia District, Yinchuan, 750021, Ningxia, China.
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37
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Zhu X, Xia Y, Wang H, Shi L, Yin H, Gu M, Yan F. PM 2.5 induced neurotoxicity through unbalancing vitamin B12 metabolism by gut microbiota disturbance. Gut Microbes 2023; 15:2267186. [PMID: 37842922 PMCID: PMC10580859 DOI: 10.1080/19490976.2023.2267186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023] Open
Abstract
Fine particulate matter (PM2.5) in the atmosphere is easily accompanied by toxic and harmful substances, causing serious harm to human health, including cognitive impairment. Vitamin B12 (VitB12) is an essential micronutrient that is synthesized by bacteria and contributes to neurotransmitter synthesis as a nutrition and signaling molecule. However, the relationship between VitB12 attenuation of cognitive impairment and intestinal microbiota regulation in PM2.5 exposure has not been elucidated. In this study, we demonstrated that PM2.5 caused behavioral defects and neuronal damage in Caenorhabditis elegans (C. elegans), along with significant gene expression changes in neurotransmitter receptors and a decrease in VitB12 content, causing behavioral defects and neuronal damage in C. elegans. Methylcobalamin (MeCbl), a VitB12 analog, alleviated PM2.5-induced neurotoxicity in C. elegans. Moreover, using in vivo and in vitro models, we discovered that long-term exposure to PM2.5 led to changes in the structure of the gut microbiota, resulting in an imbalance of the VitB12-associated metabolic pathway followed by cognitive impairment. MeCbl supplementation could increase the diversity of the bacteria, reduce harmful substance contents, and restore the concentration of short-chain fatty acids (SCFAs) and neurotransmitters to the level of the control group to some degree. Here, a new target to mitigate the harm caused by PM2.5 was discovered, supplying MeCbl for relieving intestinal and intracellular neurotransmitter disorders. Our results also provide a reference for the use of VitB12 to target the adjustment of the human intestinal microbiota to improve metabolic disorders in people exposed to PM2.5.
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Affiliation(s)
- Xuan Zhu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Food Safety, Zhejiang Gongshang University, Hangzhou, China
| | - Yanting Xia
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People’s Republic of China
| | - Huanhuan Wang
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou, China
- Laboratory animal center, Hangzhou Normal University, Hangzhou, China
| | - Lihua Shi
- Weifang Elbe Health Food Co. Ltd, Weifang, China
| | - Hongping Yin
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou, China
- Laboratory animal center, Hangzhou Normal University, Hangzhou, China
| | - Meier Gu
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou, China
- Laboratory animal center, Hangzhou Normal University, Hangzhou, China
| | - Fujie Yan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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38
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Campana M, Löhrs L, Strauß J, Münz S, Oviedo-Salcedo T, Fernando P, Maurus I, Raabe F, Moussiopoulou J, Eichhorn P, Falkai P, Hasan A, Wagner E. Blood-brain barrier dysfunction and folate and vitamin B12 levels in first-episode schizophrenia-spectrum psychosis: a retrospective chart review. Eur Arch Psychiatry Clin Neurosci 2023; 273:1693-1701. [PMID: 36869234 PMCID: PMC10713685 DOI: 10.1007/s00406-023-01572-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023]
Abstract
Vitamin deficiency syndromes and blood-brain barrier (BBB) dysfunction are frequent phenomena in psychiatric conditions. We analysed the largest available first-episode schizophrenia-spectrum psychosis (FEP) cohort to date regarding routine cerebrospinal fluid (CSF) and blood parameters to investigate the association between vitamin deficiencies (vitamin B12 and folate) and BBB impairments in FEP. We report a retrospective analysis of clinical data from all inpatients that were admitted to our tertiary care hospital with an ICD-10 diagnosis of a first-episode F2x (schizophrenia-spectrum) between January 1, 2008 and August 1, 2018 and underwent a lumbar puncture, blood-based vitamin status diagnostics and neuroimaging within the clinical routine. 222 FEP patients were included in our analyses. We report an increased CSF/serum albumin quotient (Qalb) as a sign of BBB dysfunction in 17.1% (38/222) of patients. White matter lesions (WML) were present in 29.3% of patients (62/212). 17.6% of patients (39/222) showed either decreased vitamin B12 levels or decreased folate levels. No statistically significant association was found between vitamin deficiencies and altered Qalb. This retrospective analysis contributes to the discussion on the impact of vitamin deficiency syndromes in FEP. Although decreased vitamin B12 or folate levels were found in approximately 17% of our cohort, we found no evidence for significant associations between BBB dysfunction and vitamin deficiencies. To strengthen the evidence regarding the clinical implications of vitamin deficiencies in FEP, prospective studies with standardized measurements of vitamin levels together with follow-up measurements and assessment of symptom severity in addition to CSF diagnostics are needed.
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Affiliation(s)
- Mattia Campana
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany.
| | - Lisa Löhrs
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Johanna Strauß
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Susanne Münz
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Tatiana Oviedo-Salcedo
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Piyumi Fernando
- Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Isabel Maurus
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Florian Raabe
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Joanna Moussiopoulou
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Peter Eichhorn
- Institute of Laboratory Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Peter Falkai
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
| | - Alkomiet Hasan
- Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Elias Wagner
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Nussbaumstraße 7, 80336, Munich, Germany
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Das S, Ramaswamy N, Sathish K. A Case of Fatal Non-Clostridial Gas Gangrene Following Intramuscular Injection: A Diagnostic Challenge and Dilemma at Autopsy. Acad Forensic Pathol 2023; 13:116-121. [PMID: 38298543 PMCID: PMC10825465 DOI: 10.1177/19253621231212951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 10/22/2023] [Indexed: 02/02/2024]
Abstract
Introduction Gas Gangrene following intramuscular injection is a rare but serious condition that can lead to morbidity and mortality. This case conveys a severe and fatal complication following intramuscular injections of diclofenac and vitamin B12 in a diabetic patient. Case Report The patient developed pain and swelling in the left buttock after the injection of vitamin B12 and Diclofenac one on each buttock which worsened over time. He was diagnosed with gas gangrene when he presented to the emergency department. The blood culture identified Klebsiella pneumonia. The patient's condition rapidly deteriorated, leading to sepsis and acute kidney injury. Despite intensive care management, the patient succumbed five days after admission. At autopsy, gas gangrene of the left lower limb was evident on external examination. Histopathological examination confirmed the acute tubular damage in the kidney and the postmortem blood culture also grew Klebsiella pneumonia and Enterobacter cloacae. The cause of death was determined to be acute tubular necrosis as a result of sepsis due to non-clostridial gas gangrene. Conclusion This instance of gas gangrene following trivial trauma poses a challenge for the forensic pathologist in establishing the causal association and in determining the causative organism. These are important when medical/surgical intervention is in question to be the cause of a fatal infection like gas gangrene. Ante-mortem/postmortem blood culture can aid in defining the causative organism of gas gangrene but the causal association with the alleged trauma/insult is still a challenge at autopsy. This case report addresses and tries to overcome the diagnostic challenges and dilemmas at autopsy in a case of gas gangrene.
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Affiliation(s)
| | - N Ramaswamy
- Ramaswamy N, MBBS, Department of Forensic Medicine
and Toxicology, Jawaharlal Institute of Postgraduate Medical Education & Research,
Puducherry 605006, India,
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Tan Y, Zhou L, Gu K, Xie C, Wang Y, Cha L, Wu Y, Wang J, Song X, Chen X, Hu H, Yang Q. Correlation between Vitamin B12 and Mental Health in Children and Adolescents: A Systematic Review and Meta-analysis. Clin Psychopharmacol Neurosci 2023; 21:617-633. [PMID: 37859436 PMCID: PMC10591166 DOI: 10.9758/cpn.22.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/29/2022] [Accepted: 02/01/2023] [Indexed: 10/21/2023]
Abstract
To conduct the association between vitamin B12 and mental health in children and adolescents. Five databases were searched for observational studies in any language reporting on mental health and vitamin B12 levels or intake in children and adolescents from inception to March 18, 2022. Two authors independently extracted data and assessed study quality. Qualitative and quantitative analysis of data were performed. The review was registered in the PROSPERO database (CRD42022345476). Fifty six studies containing 37,932 participants were identified in the review. Vitamin B12 levels were lower in participants with autism spectrum disorders (ASD) (standardized mean difference [SMD], -1.61; 95% confidence interval [95% CI], -2.44 to -0.79; p < 0.001), attention deficit hyperactivity disorders (SMD, -0.39; 95% CI, -0.78 to -0.00; p = 0.049) compared with control group. Vitamin B12 intake were lower in participants with ASDs (SMD, -0.86; 95% CI, -1.48 to -0.24; p = 0.006) compared with control group, but showed no difference between depression group (SMD, -0.06; 95% CI, -0.15 to 0.03; p = 0.17) and the control group. Higher vitamin B12 intake were associated with lower risk of depression (odds ratio [OR], 0.79; 95% CI, 0.63-0.98; p = 0.034) and behavioral problems (OR, 0.83; 95% CI, 0.69-0.99; p = 0.04). The vast majority of included studies supported potential positive influence of vitamin B12 on mental health, and vitamin B12 deficiency may be a reversible cause for some mental health disorders in children and adolescents.
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Affiliation(s)
- Yongjun Tan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kaiqi Gu
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Caihong Xie
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuhan Wang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lijun Cha
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Youlin Wu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiani Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaosong Song
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xia Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hua Hu
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qin Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Guo J, Liu X, Wang Z, Lu R, Liu Y, Zhang Y, Tian W, Fang S, Wang S, Yu B. Methylmalonic acid, vitamin B12, and mortality risk in patients with preexisting coronary heart disease: a prospective cohort study. Nutr J 2023; 22:63. [PMID: 38017447 PMCID: PMC10685606 DOI: 10.1186/s12937-023-00900-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/23/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND The inconsistent relationship between Vitamin B12 (B12), methylmalonic acid (MMA, marker of B12 deficiency) and mortality was poorly understood, especially in patients with coronary heart disease (CHD). This study aims to investigate the association of serum MMA, and B12-related biomarkers (serum level, dietary intake, supplement use, and sensibility to B12) with all-cause and cardiovascular mortality in adults with CHD. METHODS The data of this study were from a subcohort within the US National Health and Nutrition Examination Survey (NHANES). We included adults with preexisting CHD with serum MMA and B12, and dietary B12 intake measurements at recruitment. All participants were followed up until 31 December 2019. Weighted Cox proportional hazard regression was used to estimate hazard ratios (HR) and 95% CI of mortality risk. RESULTS Overall, 1755 individuals (weighted mean [SE] age, 65.2 [0.5] years; 1047 men [weighted 58.5%]) with CHD were included, with geometric mean levels of serum MMA 182.4 nmol/L, serum B12 494.5 pg/ml, and dietary B12 intake 4.42 mg/day, and percentage of B12 supplements use 39.1%. During a median follow-up of 7.92 years, 980 patients died. Serum B12 concentration, dietary B12 intake and supplements use were not significantly associated with mortality risk (each p ≥ 0.388). In contrast, individuals in the top tertile of MMA had multivariable-adjusted HRs (95% CIs) of 1.70 (1.31-2.20) for all-cause mortality, and 2.00 (1.39-2.89) for cardiovascular mortality (both p trend < 0.001) compared to those in the bottom tertile of MMA. MMA-related mortality risk was particularly higher among participants with sufficient serum B12 (p < 0.001). CHD patients with increased levels of both MMA and B12 had a doubled mortality risk compared to those with lower MMA and B12 (p < 0.001). CONCLUSION MMA accumulation but not serum or dietary vitamin B12 was associated with increased cardiovascular mortality risk among patients with CHD. This paradox may be related to decreased response to vitamin B12.
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Affiliation(s)
- Junchen Guo
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - XiaoXuan Liu
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - Zeng Wang
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - Rongzhe Lu
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - Yige Liu
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - Yiying Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Jiamusi University, Jiamusi, 154000, China
| | - Wei Tian
- Department of Epidemiology and Biostatistics, School of Public Health, Harbin Medical University, Harbin, 150000, China
| | - Shaohong Fang
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China
| | - Shanjie Wang
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China.
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China.
| | - Bo Yu
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China.
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, 150000, China.
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Atiq A, Shah D, Sharma S, Meena RK, Kapoor S, Gupta P. Prevalence and Predictors of Vitamin B12 Deficiency in Children with Severe Acute Malnutrition, and its Association with Development. Indian J Pediatr 2023:10.1007/s12098-023-04909-x. [PMID: 37971647 DOI: 10.1007/s12098-023-04909-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVES To determine the proportion of children with severe acute malnutrition (SAM) having vitamin B12 deficiency, its clinical predictors, and its association with development. METHODS In this cross-sectional study, 100 children between 1 mo to 59 mo [mean (SD) age 17 (12.75) mo; 55 males], with diagnosis of SAM as per WHO criteria, were included. Serum vitamin B12, serum folate, and serum ferritin levels were measured by chemiluminescence immunometric assay method, while serum Homocysteine (Hcy) level was measured by enzymatic cycling method. Development assessment was done by Denver Development Screening Tool (DDST-II). RESULTS The mean (SD) serum vitamin B12 (cobalamin) levels were 296.52 (246.95) pg/mL; 45% children were vitamin B12 deficient (<203 pg/mL). Hyperhomocysteinemia (>14 µmol/L) was present in 39 (39%), and among these 69% (27/39) children had concomitant low serum vitamin B12 levels. Severe anemia and hypoproteinemia were significantly and independently associated with vitamin B12 deficiency [aOR (95% CI) 3.22 (1.13, 10) and 10 (1.66, 58.82), respectively]. Out of 45 children who were vitamin B12 deficient, 93%, 87%, 62% and 80% had gross motor, fine-motor, language and adaptive-cognitive delay, respectively. Vitamin B12 level was significantly associated (P <0.001) with developmental delay. CONCLUSIONS There is a high prevalence of vitamin B12 deficiency in children with SAM, which is also associated with development delay across all domains (except language) in these children.
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Affiliation(s)
- Aliya Atiq
- Department of Pediatrics, University College of Medical Sciences (University of Delhi) & Associated Guru Teg Bahadur Hospital, Dilshad Garden, New Delhi, 110095, India
| | - Dheeraj Shah
- Department of Pediatrics, University College of Medical Sciences (University of Delhi) & Associated Guru Teg Bahadur Hospital, Dilshad Garden, New Delhi, 110095, India.
- National Institute of Health & Family Welfare, New Delhi, India.
| | - Shikha Sharma
- Department of Biochemistry, Chacha Nehru Bal Chikitsalaya, Delhi, India
| | - Rajesh Kumar Meena
- Department of Pediatrics, University College of Medical Sciences (University of Delhi) & Associated Guru Teg Bahadur Hospital, Dilshad Garden, New Delhi, 110095, India
| | - Seema Kapoor
- Department of Pediatrics, Genetic Unit and Laboratory, Maulana Azad Medical College (University of Delhi) and associated Lok Nayak Hospital, Delhi, India
| | - Piyush Gupta
- Department of Pediatrics, University College of Medical Sciences (University of Delhi) & Associated Guru Teg Bahadur Hospital, Dilshad Garden, New Delhi, 110095, India
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Seema B, Prahlad KS, Anuradha B, Sangeeta C, Parul T, Anjali M, Mamta K, Parul S. Homocysteine and nutritional biomarkers in cognitive impairment. Mol Cell Biochem 2023; 478:2497-2504. [PMID: 36913152 DOI: 10.1007/s11010-023-04679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 02/13/2023] [Indexed: 03/14/2023]
Abstract
Cognitive impairment is a progressive disorder that affects the ageing population. With the increase in the mean age of our population, it is becoming a public health problem. Homocysteinemia has been implicated in cognitive impairment. Whilst it is modulated by vitamins B12 and folate, it acts through MMPs 2 and 9. To assesses the relationship of cognitive impairment with homocysteine, B12, folate and MMPs 2 and 9, so as to detect cases of mild cognitive impairment which are potentially reversible, blood samples were drawn from 73 enrolled subjects, with and without cognitive impairment on basis of Montreal cognitive assessment (MoCA) score < 25 or ≥ 25, respectively. Homocysteine, B12, folate and MMPs2 and 9 were estimated. Correlation between MoCA score and these parameters was elucidated. After adjusting for age and gender, homocysteine was the only significant independent predictor of MoCA score. Cut-off of homocysteine for prediction of MoCA < 25 was derived at 13.5 µmol/L(PPV = 59.6%; NPV = 79.2%). The equation derived for calculation of MoCA score from homocysteine is: MoCA score = 32.893 + [(- 0.223)(homocysteine in μmol/L)]. Homocysteine > 13.5 μmol/L predicts low MoCA (< 25) with 84.8% sensitivity and 50% specificity. Hence, patients with an Hcy > 13.5 μmol/L should be administered B12 and folate to reduce homocysteine, a modifiable risk factor of cognitive decline. Also, a novel equation for calculating MoCA score from homocysteine has been derived. Using this derived equation to calculate MoCA score, it may be possible to identify asymptomatic subjects with early cognitive impairment.
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Affiliation(s)
- Bhargava Seema
- Department of Biochemistry, Sir Ganga Ram Hospital, New Delhi, India.
| | - K Sethi Prahlad
- Department of Neurology, Sir Ganga Ram Hospital, New Delhi, India
| | - Batra Anuradha
- Department of Neurology, Sir Ganga Ram Hospital, New Delhi, India
| | | | - Takkar Parul
- Department of Research, Sir Ganga Ram Hospital, New Delhi, India
| | - Manocha Anjali
- Department of Biochemistry, Sir Ganga Ram Hospital, New Delhi, India
| | - Kankra Mamta
- Department of Biochemistry, Sir Ganga Ram Hospital, New Delhi, India
| | - Singla Parul
- Department of Biochemistry, Sir Ganga Ram Hospital, New Delhi, India
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Fu L, Cheng H, Gao L, Zhao X, Mi J. Genetically proxied vitamin B12 and homocysteine in relation to life course adiposity and body composition. Diabetes Metab Syndr 2023; 17:102883. [PMID: 37922594 DOI: 10.1016/j.dsx.2023.102883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023]
Abstract
OBJECTIVE Observational studies explore the association between vitamin B12 and obesity. However, causality is not reflected by such observations. We performed a bi-directional Mendelian randomization (MR) study to elucidate the causal relationship of vitamin B12 and homocysteine (Hcy) with life course adiposity and body composition. METHODS Two-sample MR analysis was conducted. Independent genetic variants associated with vitamin B12 and Hcy from large-scale genome-wide association studies (GWASs) were utilized as genetic instruments, and their causal effects on five life course adiposity phenotypes (birth weight, body mass index (BMI), childhood BMI, waist circumference, waist-to-hip ratio) and three body compositions (body fat mass, body fat-free mass, body fat percentage) were estimated from UK Biobank, other consortia, and large-scale GWASs. The inverse variance weighting (IVW, main analysis), bi-directional MR, and other six sensitivity MR analyses were performed. RESULTS Genetically proxied higher vitamin B12 concentrations were robustly associated with reduced BMI (Beta = -0.01, 95% confidence interval (CI) -0.016 to -0.004, P = 7.60E-04), body fat mass (Beta = -0.012, 95%CI -0.018 to -0.007, P = 1.69E-05), and body fat percentage (Beta = -0.005, 95%CI -0.009 to -0.002, P = 4.12E-03) per SD unit by IVW and other sensitivity analyses. Stratification analysis showed that these results remained significant in females and at different body sites (all P < 0.05 after Bonferroni correction). Bi-directional analyses showed no reverse causation. CONCLUSIONS This study provides strong evidence for the causal effect of vitamin B12 on adiposity. This gives novel clues for intervening obesity in public health and nutrition.
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Affiliation(s)
- Liwan Fu
- Center for Non-Communicable Disease Management, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hong Cheng
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Liwang Gao
- Center for Non-Communicable Disease Management, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiaoyuan Zhao
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Jie Mi
- Center for Non-Communicable Disease Management, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China; Key Laboratory of Major Diseases in Children, Ministry of Education, China.
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Fedosov SN, Nexo E, Heegaard CW, Goldin J, Mason JB. Protein binding assays for an accurate differentiation of vitamin B12 from its inactive analogue. A study on edible cricket powder. Food Chem X 2023; 19:100824. [PMID: 37780289 PMCID: PMC10534188 DOI: 10.1016/j.fochx.2023.100824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/18/2023] [Accepted: 08/02/2023] [Indexed: 10/03/2023] Open
Abstract
Inactive analogues of vitamin B12 (cobalamin, Cbl) can mimic the active Cbl in food if using the traditional microbiological measurements. Thus, overestimated Cbl was recently revealed in edible insects employing immunoaffinity adsorption, HPLC-separation and mass spectrometry (https://doi.org/10.1016/j.foodchem.2021.129048). Here we demonstrate the utility of a convenient binding assay to evaluate Cbl in edible cricket powders. The assay employed the Cbl-specific protein intrinsic factor (IF) and the analogue-detecting protein haptocorrin. The excessive analogues had a weak affinity for IF, resulting in a modest overestimate of Cbl. This overestimate was corrected by a novel mathematical procedure, based on the ratio of analogue/Cbl in the sample and their relative affinities for IF. We found that 100 g of cricket powders contained 40-60 µg of analogues and 0.75-2.2 μg of Cbl. This result was confirmed by HPLC. A correct approach to Cbl-measurements is essential for nutritional assessment of any analogue-containing food.
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Affiliation(s)
- Sergey N. Fedosov
- Department of Molecular Biology and Genetics, Aarhus University, University Town 1874/81, Aarhus C 8000, Denmark
- Department of Clinical Medicine/Biochemistry, Aarhus University Hospital, Palle Juul-Jensens Blvd. 161, Aarhus N 8200, Denmark
| | - Ebba Nexo
- Department of Clinical Medicine/Biochemistry, Aarhus University Hospital, Palle Juul-Jensens Blvd. 161, Aarhus N 8200, Denmark
| | - Christian W. Heegaard
- Department of Molecular Biology and Genetics, Aarhus University, University Town 1874/81, Aarhus C 8000, Denmark
| | - Jarrod Goldin
- Entomo Farms, 31 Industrial Dr., Norwood, Ontario K0L 2V0, Canada
| | - Joel B. Mason
- U.S.D.A. Human Nutrition Research Center at Tufts University, 711 Washington St., Boston, MA 02111, United States
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Mariotti F. Nutritional and health benefits and risks of plant-based substitute foods. Proc Nutr Soc 2023:1-14. [PMID: 37881950 DOI: 10.1017/s0029665123004767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Plant-based substitutes (PBS) are seen as a convenient way to transition to a more plant-based diet, but their potential health benefits and nutritional concerns remain debated. Based on a review of the literature, it is concluded here that the primary risk of insufficient nutrient intake with PBS concerns iron and calcium, which are critical to the nutritional value of PBS. Other risks were identified but these would depend on the characteristics of the overall diet, as is the case for iodine in a diet containing no seafood or dairy, and vitamin B12 in a vegetarian/vegan diet. Conversely, the use of PBS is also expected to confer some benefits for long-term health because it would result in higher fibre intakes (in the case of meat PBS) and lower SFA intakes (but higher PUFA/MUFA intakes), but attention should be paid to a potential increase in sodium intake with PBS of meat products. In fact, a recurring finding in this review was that PBS is a very heterogeneous food category involving considerable variations in ingredient and nutrient composition, and whose design could be improved in order to foster nutritional and health benefits. The latter also depend on the animal food that is being replaced and are only deemed likely when PBS replace red meat. The fortification of PBS with key nutrients such as iron and calcium may constitute an actionable public health solution to further shift the balance in favour of PBS in the context of the current dietary transition in western countries.
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Affiliation(s)
- François Mariotti
- Université Paris-Saclay, AgroParisTech, INRAE, UMR PNCA, 91120 Palaiseau, France
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Matmat K, Conart JB, Graindorge PH, El Kouche S, Hassan Z, Siblini Y, Umoret R, Safar R, Baspinar O, Robert A, Alberto JM, Oussalah A, Coelho D, Guéant JL, Guéant-Rodriguez RM. A transgenic mice model of retinopathy of cblG-type inherited disorder of one-carbon metabolism highlights epigenome-wide alterations related to cone photoreceptor cells development and retinal metabolism. Clin Epigenetics 2023; 15:158. [PMID: 37798757 PMCID: PMC10557304 DOI: 10.1186/s13148-023-01567-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND MTR gene encodes the cytoplasmic enzyme methionine synthase, which plays a pivotal role in the methionine cycle of one-carbon metabolism. This cycle holds a significant importance in generating S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH), the respective universal methyl donor and end-product of epigenetic transmethylation reactions. cblG type of inherited disorders of vitamin B12 metabolism due to mutations in MTR gene exhibits a wide spectrum of symptoms, including a retinopathy unresponsive to conventional therapies. METHODS To unveil the underlying epigenetic pathological mechanisms, we conducted a comprehensive study of epigenomic-wide alterations of DNA methylation by NGS of bisulfited retinal DNA in an original murine model with conditional Mtr deletion in retinal tissue. Our focus was on postnatal day 21, a critical developmental juncture for ocular structure refinement and functional maturation. RESULTS We observed delayed eye opening and impaired visual acuity and alterations in the one-carbon metabolomic profile, with a notable dramatic decline in SAM/SAH ratio predicted to impair DNA methylation. This metabolic disruption led to epigenome-wide changes in genes involved in eye development, synaptic plasticity, and retinoid metabolism, including promoter hypermethylation of Rarα, a regulator of Lrat expression. Consistently, we observed a decline in cone photoreceptor cells and reduced expression of Lrat, Rpe65, and Rdh5, three pivotal genes of eye retinoid metabolism. CONCLUSION We introduced an original in vivo model for studying cblG retinopathy, which highlighted the pivotal role of altered DNA methylation in eye development, cone differentiation, and retinoid metabolism. This model can be used for preclinical studies of novel therapeutic targets.
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Affiliation(s)
- Karim Matmat
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Jean-Baptiste Conart
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
- Department of Ophthalmology, University Regional Hospital Center of Nancy, 54000, Nancy, France
| | - Paul-Henri Graindorge
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Sandra El Kouche
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Ziad Hassan
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Youssef Siblini
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Rémy Umoret
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Ramia Safar
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Okan Baspinar
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Aurélie Robert
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Jean-Marc Alberto
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - Abderrahim Oussalah
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
| | - David Coelho
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France
- National Center of Inborn Errors of Metabolism, University Regional Hospital Center of Nancy, 54000, Nancy, France
| | - Jean-Louis Guéant
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France.
- National Center of Inborn Errors of Metabolism, University Regional Hospital Center of Nancy, 54000, Nancy, France.
- Faculté de Médecine, Bâtiment C 2Ème Étage, 9 Avenue de La Forêt de Haye, 54505, Vandœuvre-lès-Nancy, France.
| | - Rosa-Maria Guéant-Rodriguez
- Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, 54500, Vandoeuvre-lès-Nancy, France.
- National Center of Inborn Errors of Metabolism, University Regional Hospital Center of Nancy, 54000, Nancy, France.
- Faculté de Médecine, Bâtiment C 2Ème Étage, 9 Avenue de La Forêt de Haye, 54505, Vandœuvre-lès-Nancy, France.
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Tsylents U, Siekierska I, Trylska J. Peptide nucleic acid conjugates and their antimicrobial applications-a mini-review. Eur Biophys J 2023; 52:533-544. [PMID: 37610696 PMCID: PMC10618302 DOI: 10.1007/s00249-023-01673-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 08/24/2023]
Abstract
Peptide nucleic acid (PNA) is a nucleic acid mimic with high specificity and binding affinity to natural DNA or RNA, as well as resistance to enzymatic degradation. PNA sequences can be designed to selectively silence gene expression, which makes PNA a promising tool for antimicrobial applications. However, the poor membrane permeability of PNA remains the main limiting factor for its applications in cells. To overcome this obstacle, PNA conjugates with different molecules have been developed. This mini-review focuses on covalently linked conjugates of PNA with cell-penetrating peptides, aminosugars, aminoglycoside antibiotics, and non-peptidic molecules that were tested, primarily as PNA carriers, in antibacterial and antiviral applications. The chemistries of the conjugation and the applied linkers are also discussed.
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Affiliation(s)
- Uladzislava Tsylents
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097, Warsaw, Poland
| | - Izabela Siekierska
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097, Warsaw, Poland
| | - Joanna Trylska
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097, Warsaw, Poland.
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Bjerkan KK, Sandvik J, Nymo S, Græslie H, Johnsen G, Mårvik R, Hyldmo ÅA, Kulseng BE, Sommerseth S, Høydal KL, Hoff DAL. Vitamin and Mineral Deficiency 12 Years After Roux-en-Y Gastric Bypass a Cross-Sectional Multicenter Study. Obes Surg 2023; 33:3178-3185. [PMID: 37635164 PMCID: PMC10514116 DOI: 10.1007/s11695-023-06787-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/29/2023]
Abstract
PURPOSE Micronutrient deficiencies are common after Roux-en-Y gastric bypass (RYGB). This study explores whether vitamin and mineral deficiency was associated with adherence to recommended supplementation 12 years after RYGB. MATERIALS AND METHODS The cross-sectional Bariatric Surgery Observation Study (BAROBS) was conducted in 2018-2020 at three hospitals in Central Norway. We report data on 490 patients' self-reported adherence to recommended supplements and vitamin and mineral levels in the blood. The patients, who had RYGB between 2003 and 2009, were recommended an over-the-counter multivitamin-mineral supplement, calcium/vitamin D (1000 mg/20 µg) and vitamin B12 injections (reimbursed), since bariatric supplements were not available then. RESULTS Mean (SD) age was 40.1 ± 9 years at RYGB, and time to follow-up 11.7 ± 1.6 years. Of 490 patients, 393 (80%) were women. Among 361 (74%) patients' adherent to multivitamin-mineral supplements; folate, vitamin B2, and vitamin B6 deficiency were present in 39 (11%), 103 (29%), and 63 (17%) patients, respectively. The same deficiencies occurred in 44 (34%), 67 (52%), and 67 (52%) patients' non-adherent to recommendations. Although 466 (95%) patients reported adherence to vitamin B12 supplements, sub-optimal levels were found in 73 (16%) patients. Though 336 (69%) patients adhered to calcium/vitamin D supplements (1000 mg/20 µg), sub-optimal vitamin D levels (< 75 nmol/l) were found in 174/336 (52%) adherent patients and 120/154 (78%) non-adherent patients. CONCLUSION Twelve years after RYGB, adherence to supplements, though in sub-optimal doses of new recommendations, decreases the probability of vitamin and mineral deficiency, especially for thiamine, vitamin B2, vitamin B6, folate, vitamin B12, and vitamin D, but does not eliminate it.
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Affiliation(s)
- Kirsti K Bjerkan
- Faculty of Social Science and History, Volda University College, Joplassvegen 1, Volda, 6103, Norway.
- Department of Surgery, Møre and Romsdal Hospital Trust, Ålesund, Norway.
| | - Jorunn Sandvik
- Department of Surgery, Møre and Romsdal Hospital Trust, Ålesund, Norway
- Centre for Obesity Research, Clinic of Surgery, St. Olav's University Hospital, Trondheim, Norway
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Siren Nymo
- Centre for Obesity Research, Clinic of Surgery, St. Olav's University Hospital, Trondheim, Norway
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Clinic of Surgery, Namsos Hospital, Nord-Trøndelag Hospital Trust, Namsos, Norway
| | - Halvor Græslie
- Clinic of Surgery, Namsos Hospital, Nord-Trøndelag Hospital Trust, Namsos, Norway
| | - Gjermund Johnsen
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Norwegian National Advisory Unit On Advanced Laparoscopic Surgery, Clinic of Surgery, St. Olav's University Hospital, Trondheim, Norway
| | - Ronald Mårvik
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Norwegian National Advisory Unit On Advanced Laparoscopic Surgery, Clinic of Surgery, St. Olav's University Hospital, Trondheim, Norway
| | - Åsne A Hyldmo
- Centre for Obesity Research, Clinic of Surgery, St. Olav's University Hospital, Trondheim, Norway
| | - Bård Eirik Kulseng
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Sandra Sommerseth
- Department of Neuromedicine and Movement Science, Faculty and Medicine and Health Sciences, NTNU, Trondheim, Norway
| | - Kjetil Laurits Høydal
- Department of Physical Education, Faculty of Arts and Physical Education, Volda University College, Volda, Norway
| | - Dag Arne L Hoff
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Research and Innovation, Møre and Romsdal Hospital Trust, Ålesund, Norway
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50
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Bianciardi S, Tesi G, Cerutti H, Cartocci A, Guerranti R, Silvestrini C, Gori S, Bandini T, Brogi A, Leoncini R. Validation, performance, and reliability of two automated tests for vitamin B12 and folate assay. J Public Health Res 2023; 12:22799036231217803. [PMID: 38108046 PMCID: PMC10722937 DOI: 10.1177/22799036231217803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023] Open
Abstract
Background Deficiency of Vitamin B12 and folate may determine hematological, neurological, and metabolic alterations; therefore, an accurate quantification of their serum levels is required, especially in the presence of symptoms that might suggest a deficiency. CHORUS VIT B12 and CHORUS FOLATE are two automated immunoassays, developed to quantify vitamin B12 and folate, respectively, in human serum. Design and methods This single-center, non-pharmacological, diagnostic study described the validation and characterization of CHORUS VIT B12 and CHORUS FOLATE, with a specific focus on performance, precision, and reliability. For each assay, 500 serum samples were analyzed. A comparison between CHORUS assays and commercially available kit was also performed. Results For CHORUS VIT B12 the lower limit of quantification (LLoQ) was 165.0 pg/mL and the upper LoQ (ULoQ) was 1846.8 pg/mL. The assay was linear within the calibration range (150-2000 pg/mL) and the accuracy was described with the International Standard Vitamin B12, Serum Folate, HOLO TC (NIBSC code: 03/178), with a mean recovery on two lots of 111%. For CHORUS FOLATE (calibration range of 2.0-20.0 ng/mL), LLoQ was 2.0 ng/mL and ULoQ 19.6 ng/mL. The linearity was demonstrated from 2.4 to 20.0 ng/mL; the accuracy was described with the International Standard mentioned above, achieving a mean recovery on three lots of 92%. The lowest and highest values of both CHORUS and COBAS kits were similar and the median values did not significantly vary. Conclusion CHORUS VIT B12 and CHORUS FOLATE performed well, accurately, and reliably in quantifying vitamin B12 and folate in human serum.
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Affiliation(s)
- Simone Bianciardi
- DIESSE Diagnostica Senese S.p.A. Società Benefit, Monteriggioni, Siena, Italy
| | - Giulia Tesi
- DIESSE Diagnostica Senese S.p.A. Società Benefit, Monteriggioni, Siena, Italy
| | - Helena Cerutti
- DIESSE Diagnostica Senese S.p.A. Società Benefit, Monteriggioni, Siena, Italy
| | | | - Roberto Guerranti
- Laboratorio Patologia Clinica, Azienda Ospedaliero-Universitaria Senese, Siena, Italy
| | - Caterina Silvestrini
- Laboratorio Patologia Clinica, Azienda Ospedaliero-Universitaria Senese, Siena, Italy
| | - Sabrina Gori
- Laboratorio Patologia Clinica, Azienda Ospedaliero-Universitaria Senese, Siena, Italy
| | - Tommaso Bandini
- DIESSE Diagnostica Senese S.p.A. Società Benefit, Monteriggioni, Siena, Italy
| | - Alessandra Brogi
- DIESSE Diagnostica Senese S.p.A. Società Benefit, Monteriggioni, Siena, Italy
| | - Roberto Leoncini
- Laboratorio Patologia Clinica, Azienda Ospedaliero-Universitaria Senese, Siena, Italy
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