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Huang S, Gao Y, Chen Y, Wang Y, Lu Y, Gao W, Hu X, Fang Q. Association between dietary zinc intake and epilepsy: findings from NHANES 2013-2018 and a Mendelian randomization study. Front Nutr 2024; 11:1389338. [PMID: 39050137 PMCID: PMC11267886 DOI: 10.3389/fnut.2024.1389338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 06/18/2024] [Indexed: 07/27/2024] Open
Abstract
Background The association between dietary zinc intake and epilepsy remains unclear. This study aimed to investigate the relationship between zinc intake from the diet and epilepsy, employing Mendelian randomization (MR) to explore potential causal links between zinc and epilepsy. Methods The cross-sectional study utilized data from the National Health and Nutrition Examination Survey (NHANES) conducted between 2013 and 2018. Among the 4,434 participants included, 1.5% (67/4,434) reported having epilepsy. Restricted cubic spline models and logistic regression models were employed to examine the relationships between dietary zinc intakes and epilepsy. Subsequently, a 2-sample Mendelian randomization (MR) analysis was conducted using the inverse variance weighted (IVW) approach as the primary analysis. Results In the restricted cubic spline (RCS) analysis, the relationship between dietary zinc consumption and epilepsy displayed an L-shaped curve (nonlinear, p = 0.049). After multivariate adjustments, the adjusted odds ratios for epilepsy in T2 (5.0-11.0 mg/day) and T3 (≥11.0 mg/day) were 0.49 (95% confidence interval [CI]: 0.26-0.92, p = 0.026) and 0.60 (95% CI: 0.31-1.17, p = 0.132), respectively, compared to the lowest dietary zinc consumption tertile (T1, ≤5.0 mg/day). The IVW method indicated that genetically predicted zinc intake per standard-deviation increase was inversely associated with three types of epilepsy, including all types of epilepsy (OR = 1.06, 95% CI: 1.02-1.11, p = 0.008), generalized epilepsy (OR = 1.13, 95% CI: 1.01-1.25, p = 0.030), and focal epilepsy (documented hippocampal sclerosis) (OR = 1.01, 95% CI: 1.00-1.02, p = 0.025). Conclusion Our findings suggest that a daily zinc intake ranging from 5.0 to 11.0 mg is associated with the lowest risk of epilepsy. Furthermore, Mendelian randomization (MR) studies provide additional support for the existence of a causal relationship between zinc and epilepsy.
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Affiliation(s)
- Shicun Huang
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ya Gao
- Department of Neurology, Suzhou Guangci Cancer Hospital, Suzhou, China
| | - Yingqi Chen
- Department of Neurology, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, China
| | - Yiqing Wang
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yeting Lu
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wei Gao
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaowei Hu
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qi Fang
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
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Ran L, Xu M, Zhang Z, Zeng X. The association of nutrient intake with epilepsy: A cross-sectional study from NHANES, 2013-2014. Epilepsy Res 2024; 200:107297. [PMID: 38215605 DOI: 10.1016/j.eplepsyres.2024.107297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/18/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND Dietary nutrient supplements are helpful in the treatment of many diseases, but their effect on epilepsy is still controversial. This study aimed to evaluate the association between dietary intake of multiple nutrients and epilepsy. METHODS A total of 3963 participants from the NHANES database were involved in this study. We compared the dietary intake of 14 nutrients between the normal population and those with epilepsy. Univariable and multivariable logistic regression were conducted to evaluate the association of these nutrients with epilepsy. RESULTS Compared with the normal population, the epilepsy patients showed lower intakes of protein, vitamin B1, vitamin B6, Fe, and Zn. Multivariable logistic regression showed the negative association of vitamin B1 (OR = 0.513, 95% CI: 0.293, 0.897) with epilepsy. When vitamin B1 was divided into 4 groups according to quartiles, the highest quartile showed a lower odds ratio (OR = 0.338, 95% CI: 0.115, 0.997) than that of the lowest quartile. In different population stratifications, the association of vitamin B1 with epilepsy was different. Vitamin B1 was negatively associated with the odds ratio of epilepsy among the elderly (OR = 0.243), low-income population (OR = 0.337), and current smokers (OR = 0.283). CONCLUSION Epilepsy patients had significantly lower intakes of vitamin B1, which was inversely associated with epilepsy risk. More detailed clinical trials are needed to accurately evaluate nutritional supplements for epilepsy.
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Affiliation(s)
- Liling Ran
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, Hunan, China
| | - Mengchang Xu
- Hunan Provincial Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha 410219, China
| | - Zheng Zhang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, Hunan, China.
| | - Xin Zeng
- Department of Pharmacy, Hunan Children Hospital, Changsha, Hunan 410007, China.
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Dogaru CB, Duță C, Muscurel C, Stoian I. "Alphabet" Selenoproteins: Implications in Pathology. Int J Mol Sci 2023; 24:15344. [PMID: 37895024 PMCID: PMC10607139 DOI: 10.3390/ijms242015344] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/08/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Selenoproteins are a group of proteins containing selenium in the form of selenocysteine (Sec, U) as the 21st amino acid coded in the genetic code. Their synthesis depends on dietary selenium uptake and a common set of cofactors. Selenoproteins accomplish diverse roles in the body and cell processes by acting, for example, as antioxidants, modulators of the immune function, and detoxification agents for heavy metals, other xenobiotics, and key compounds in thyroid hormone metabolism. Although the functions of all this protein family are still unknown, several disorders in their structure, activity, or expression have been described by researchers. They concluded that selenium or cofactors deficiency, on the one hand, or the polymorphism in selenoproteins genes and synthesis, on the other hand, are involved in a large variety of pathological conditions, including type 2 diabetes, cardiovascular, muscular, oncological, hepatic, endocrine, immuno-inflammatory, and neurodegenerative diseases. This review focuses on the specific roles of selenoproteins named after letters of the alphabet in medicine, which are less known than the rest, regarding their implications in the pathological processes of several prevalent diseases and disease prevention.
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Affiliation(s)
| | | | - Corina Muscurel
- Department of Biochemistry, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania (I.S.)
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Liu W, Xu J, Zhang L, Li F, Zhang L, Tai Z, Yang J, Zhang H, Tuo J, Yu C, Xu Z. Research progress on correlations between trace element levels and epilepsy. Front Cell Dev Biol 2023; 11:1167626. [PMID: 37621773 PMCID: PMC10445535 DOI: 10.3389/fcell.2023.1167626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/25/2023] [Indexed: 08/26/2023] Open
Abstract
Research investigating the correlation between human trace element levels and disease alterations is growing. Epilepsy, a common nervous system disease, has also been found to be closely related to abnormal levels of trace elements. Studies continue to explore mechanisms of various trace elements involved in epileptic seizures through experimental animal models of epilepsy. Thus, we reviewed the research progress on the correlation between trace element levels and epilepsy in recent years and found that the trace elements most closely related to epilepsy are mainly metal ions such as selenium, iron, copper, zinc, and manganese. These results indicate that the changes in some trace elements are closely related to the increase in epilepsy susceptibility. In addition, after treatment with drugs and a ketogenic diet, the concentration of trace elements in the serum of patients with epilepsy changes. In other words, the abnormality of trace element concentrations is of great significance in the occurrence and development of epilepsy. This article is a literature update on the potential role of trace element imbalance in the development of epilepsy, providing new references for the subsequent prevention and treatment of epilepsy.
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Affiliation(s)
- Wanyu Liu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Jingqing Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Linhai Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Fangjing Li
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Lijia Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhenzhen Tai
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Juan Yang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Haiqing Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jinmei Tuo
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
- Department of Nursing, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Changyin Yu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Zucai Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
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5
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Wang B, Fang T, Chen H. Zinc and Central Nervous System Disorders. Nutrients 2023; 15:2140. [PMID: 37432243 DOI: 10.3390/nu15092140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 07/12/2023] Open
Abstract
Zinc (Zn2+) is the second most abundant necessary trace element in the human body, exerting a critical role in many physiological processes such as cellular proliferation, transcription, apoptosis, growth, immunity, and wound healing. It is an essential catalyst ion for many enzymes and transcription factors. The maintenance of Zn2+ homeostasis is essential for the central nervous system, in which Zn2+ is abundantly distributed and accumulates in presynaptic vesicles. Synaptic Zn2+ is necessary for neural transmission, playing a pivotal role in neurogenesis, cognition, memory, and learning. Emerging data suggest that disruption of Zn2+ homeostasis is associated with several central nervous system disorders including Alzheimer's disease, depression, Parkinson's disease, multiple sclerosis, schizophrenia, epilepsy, and traumatic brain injury. Here, we reviewed the correlation between Zn2+ and these central nervous system disorders. The potential mechanisms were also included. We hope that this review can provide new clues for the prevention and treatment of nervous system disorders.
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Affiliation(s)
- Bangqi Wang
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical College, Nanchang University, Nanchang 330006, China
| | - Tianshu Fang
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical College, Nanchang University, Nanchang 330006, China
| | - Hongping Chen
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
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Rosendahl S, Anturaniemi J, Kukko-Lukjanov TK, Vuori KA, Moore R, Hemida M, Muhle A, Hielm-Björkman A. Whole blood trace element and toxic metal concentration in dogs with idiopathic epilepsy and healthy dogs: A case-control study. Front Vet Sci 2023; 9:1066851. [PMID: 36686192 PMCID: PMC9845892 DOI: 10.3389/fvets.2022.1066851] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/09/2022] [Indexed: 01/05/2023] Open
Abstract
Background Idiopathic epilepsy (IE) is the most common neurological disease in dogs. Multiple genes and environmental factors interact to cause clinical signs, although the pathogenesis remains poorly understood. Extensive evidence from recent decades shows that trace elements play a role in epilepsy in humans, and recently it was shown for the first time that also dogs with IE have altered trace element status. On the other hand, toxic metals may cause seizures but research on their role in canine IE is lacking. Therefore, we aimed to investigate trace element and toxic metal concentrations in whole blood from dogs that had been diagnosed with IE and compare them to those of healthy dogs. Materials and methods Whole blood concentrations of trace elements (selenium, zinc, copper, manganese, iron, and chromium) and toxic metals (arsenic, cadmium, mercury, and lead) were analyzed from 19 dogs that had been diagnosed with IE by board-certified neurologists and 19 healthy control dogs using inductively coupled plasma mass spectrometry. The concentrations in study and control group were compared using the Mann-Whitney U test. Results Dogs diagnosed with IE had significantly higher blood copper concentration (P = 0.007), higher copper/zinc ratio (P = 0.04), and higher selenium concentration (P < 0.001), as well as lower chromium concentration (P = 0.01) when compared to healthy dogs. Treatment of IE with potassium bromide was associated with a significant elevation in blood arsenic concentration (P = 0.01). Conclusion In conclusion, the present results support the role of altered trace element status in dogs diagnosed with IE and suggest that copper, selenium, and chromium may be involved in the pathogenesis of canine epilepsy or seizures. The results also suggest that potassium bromide may alter arsenic metabolism in dogs.
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Affiliation(s)
- Sarah Rosendahl
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland,*Correspondence: Sarah Rosendahl ✉
| | - Johanna Anturaniemi
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Tiina-Kaisa Kukko-Lukjanov
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Kristiina A. Vuori
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Robin Moore
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Manal Hemida
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Anne Muhle
- Neurology Services, Evidensia Espoo Animal Hospital, Espoo, Finland
| | - Anna Hielm-Björkman
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
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Li Z, Liu Y, Wei R, Yong VW, Xue M. The Important Role of Zinc in Neurological Diseases. Biomolecules 2022; 13:28. [PMID: 36671413 PMCID: PMC9855948 DOI: 10.3390/biom13010028] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
Zinc is one of the most abundant metal ions in the central nervous system (CNS), where it plays a crucial role in both physiological and pathological brain functions. Zinc promotes antioxidant effects, neurogenesis, and immune system responses. From neonatal brain development to the preservation and control of adult brain function, zinc is a vital homeostatic component of the CNS. Molecularly, zinc regulates gene expression with transcription factors and activates dozens of enzymes involved in neuronal metabolism. During development and in adulthood, zinc acts as a regulator of synaptic activity and neuronal plasticity at the cellular level. There are several neurological diseases that may be affected by changes in zinc status, and these include stroke, neurodegenerative diseases, traumatic brain injuries, and depression. Accordingly, zinc deficiency may result in declines in cognition and learning and an increase in oxidative stress, while zinc accumulation may lead to neurotoxicity and neuronal cell death. In this review, we explore the mechanisms of brain zinc balance, the role of zinc in neurological diseases, and strategies affecting zinc for the prevention and treatment of these diseases.
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Affiliation(s)
- Zhe Li
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou 450001, China
| | - Yang Liu
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou 450001, China
| | - Ruixue Wei
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou 450001, China
| | - V. Wee Yong
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou 450001, China
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Kılıç M, Köseoğlu E, Tekkalan F, Costantini E, Trama F, Illiano E, Tarcan T. Effects of COVID-19 Lockdown on People’s Sexual Lives in Turkiye. JOURNAL OF UROLOGICAL SURGERY 2022. [DOI: 10.4274/jus.galenos.2022.2022.0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Chakrabarty B, Dogra AS, Toteja GS, Pandey RM, Paul VK, Gulati S. Serum Trace Elements in Children with Well-Controlled and Drug Refractory Epilepsy Compared to Controls: An Observational Study. Neurol India 2022; 70:1846-1851. [PMID: 36352577 DOI: 10.4103/0028-3886.359205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Trace elements have been implicated in pathogenesis of epilepsy. Studies till date have shown altered levels of serum trace elements in children with epilepsy. OBJECTIVE The objective of the current was to estimate serum levels of trace elements in children with well-controlled and drug refractory epilepsy and compare it with controls. METHODOLOGY In a tertiary care teaching hospital of North India, serum selenium, copper, zinc, and iron were estimated in well-controlled and drug refractory epileptic children aged 2-12 years and compared with age and gender matched controls. RESULTS A total of 106 children with epilepsy (55 drug refractory and 51 well controlled) and 52 age and gender matched controls were included in the study. Serum selenium and copper were significantly decreased in cases compared to controls. After classifying epilepsy into well-controlled and drug refractory cases, only in the latter the significant difference for serum selenium and copper levels remained compared to controls. Additionally, in the drug refractory cases, serum iron levels were significantly reduced compared to controls. CONCLUSIONS Serum trace elements are altered in children with epilepsy (more so in the drug refractory group) compared to controls. Monitoring of serum trace elements in children with epilepsy should be considered. Up to one-third of epilepsy is drug refractory of which only another third are amenable to surgery. It is worth investigating the therapeutic potential of altered micronutrient status in these patients.
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Affiliation(s)
- Biswaroop Chakrabarty
- Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Ankush Singh Dogra
- Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - G S Toteja
- Indian Council of Medical Research, New Delhi, India
| | - R M Pandey
- Child Neurology Division, Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Vinod K Paul
- Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Sheffali Gulati
- Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
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10
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Suwarba IGNM, Mahalini DS, Widyakusuma IGNAJ. The Relationship between Hair Zinc Levels and Drug-resistant Epilepsy in Children at Sanglah Hospital. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Drug-resistant epilepsy (DRE) is epilepsy that is failed to achieve free of seizure after adequate trials of two tolerated and appropriately chosen antiepileptic drugs. Zinc deficiency could trigger the onset of various neurological disorders, including seizures in epilepsy.
AIM: The objective of the study was to determine the relationship between hair zinc levels and DRE in children at Sanglah Hospital, Denpasar.
METHODS: This is an analytic observational study using a cross-sectional design, involving 74 subjects. The inclusion criteria were children aged 1 month–18 years who had been diagnosed with epilepsy. Chi-square test and multivariate analysis with logistic regression were used to assess the relation between hair zinc levels and DRE in children.
RESULTS: Multivariate analysis found a relationship between low hair zinc level and DRE in children (PR 8.0; 95% CI 2.0–32.2; p = 0.003). The duration of therapy (PR 16.0; 95% CI 3.9–65.4; p = 0.000) and structural abnormalities (PR 4.1; 95% CI 1.1–14.9; p = 0.028) also increased the risk of DRE in this study.
CONCLUSION: Low hair zinc level is associated with DRE in children.
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Hashemzaei M, Fanoudi S, Najari M, Fotouhi M, Belaran M, Alipour NS, Dadrezaei Z, Miri F, Tabrizian K. Effects of Quercetin and Resveratrol on Zinc Chloride- and Sodium Metavanadate-Induced Passive Avoidance Memory Retention Deficits in Male Mice. Prev Nutr Food Sci 2021; 26:67-74. [PMID: 33859961 PMCID: PMC8027046 DOI: 10.3746/pnf.2021.26.1.67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/15/2020] [Accepted: 10/17/2020] [Indexed: 12/21/2022] Open
Abstract
Quercetin and resveratrol are found in a variety of fruits and vegetables and have several biological and pharmacological properties. In this study, the effects of quercetin [50 mg/kg, intraperitoneal (i.p.)] and resveratrol (50 mg/kg, i.p.) on zinc chloride (ZnCl2; 75 mg/kg/d, 2 weeks oral gavage) and sodium metavanadate (SMV; 22.5 mg/kg/d, 2 weeks oral gavage) induced passive avoidance memory retention were investigated in step-through passive avoidance tasks. ZnCl2 was dissolved in saline and SMV was dissolved in drinking water. Mice received ZnCl2 or SMV orally for two weeks and were administered quercetin or resveratrol by i.p. injection on day 14, days 12 and 14, or days 10, 12, and 14. At the end of treatment, animals were trained for one day in a step-through passive avoidance task, then alterations in avoidance memory retention were evaluated after 24, 48, 96, and 168 h. Oral consumption of ZnCl2 and SMV decreased latency time compared with control groups. Both quercetin and resveratrol (50 mg/kg, i.p.) prevented ZnCl2- and SMV-induced avoidance memory retention impairments and did not significantly alter muscle strength, as demonstrated in rotarod tasks. No significant differences were observed between mice who received single, double, or triple doses of quercetin or resveratrol. The results suggest that quercetin and resveratrol may have preventive effects on ZnCl2- and SMV-induced memory impairment in male mice.
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Affiliation(s)
- Mahmoud Hashemzaei
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran.,Toxicology and Addiction Research Center, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Sahar Fanoudi
- Department of Pharmacology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 13131-99137, Iran
| | - Mohadeseh Najari
- Students Research Committee, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Mansoureh Fotouhi
- Students Research Committee, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Maryam Belaran
- Department of Physiology, Faculty of Medicine, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Najmeh Sadat Alipour
- Students Research Committee, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Zahra Dadrezaei
- Students Research Committee, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Fatemeh Miri
- Students Research Committee, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Kaveh Tabrizian
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol 98616-15881, Iran.,Toxicology and Addiction Research Center, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
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Ismail RS, Kishk NA, Rizk HI, El-Kholy T, Abd El-Maoula LM, Ibrahim El-Desoky O, Shaheen S, El-Sawy E. Nutritional intake and its impact on patients with epilepsy: an analytical cross-sectional study. Nutr Neurosci 2021; 25:1813-1822. [PMID: 33779528 DOI: 10.1080/1028415x.2021.1905371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Anecdotal reports have proposed that diet might influence the occurrence of seizures. OBJECTIVES Our objectives were to assess nutritional status in a sample of patients with epilepsy and to investigate the impact of nutrition on epilepsy control. PATIENTS AND METHODS One hundred and fifty patients with epilepsy participated in the study. To assess nutritional status, sociodemographic characteristics, anthropometric measurements, dietary food intake, and 24-hour food intake were evaluated. Patients answered questions using a food frequency questionnaire. RESULTS In patients with epilepsy, there was insufficient intake of water, fiber, potassium, magnesium and some vitamins (C, E, B12, folate and niacin); suboptimal intake of calories, zinc, calcium, and some vitamins (A, B1 and B6); optimal intake of total fats; and over-intake of proteins, carbohydrates, phosphorus, iron, sodium, and vitamins D and B2. Moreover, there was a statistically significant difference between patients with controlled versus uncontrolled seizures regarding frequency of vegetable intake and percentage of caloric intake from the recommended dietary allowance. Stepwise logistic regression indicated that those with low intake of vegetables had a 2.3 times higher likelihood of uncontrolled seizure occurrence compared to those with a high intake of vegetables per week. Also, those with optimal caloric intake were 80% less likely to have uncontrolled seizures than those with too much caloric intake. CONCLUSION Macro- and micronutrient intake were unbalanced in patients with epilepsy. Patients who consumed too many calories and too few vegetables were more likely to have improper seizure control.
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Affiliation(s)
| | - Nirmeen Adel Kishk
- Neurology Department, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Hoda Ibrahim Rizk
- Public Health and Community Medicine Department, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Thanaa El-Kholy
- Nutrition and Food Science Department, Faculty of Home Economics, Al-Azhar University, Tanta, Cairo, Egypt
| | - Lamiaa M Abd El-Maoula
- Nutrition and Food Science Department, Faculty of Home Economics, Al-Azhar University, Tanta, Cairo, Egypt
| | - Ola Ibrahim El-Desoky
- Nutrition and Food Science Department, Faculty of Home Economics, Al-Azhar University, Tanta, Cairo, Egypt
| | - Shaimaa Shaheen
- Neurology Department, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Enji El-Sawy
- Neurology Department, Faculty of Medicine, Cairo University, Giza, Egypt
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13
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Sharma G, Shin EJ, Sharma N, Nah SY, Mai HN, Nguyen BT, Jeong JH, Lei XG, Kim HC. Glutathione peroxidase-1 and neuromodulation: Novel potentials of an old enzyme. Food Chem Toxicol 2021; 148:111945. [PMID: 33359022 DOI: 10.1016/j.fct.2020.111945] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022]
Abstract
Glutathione peroxidase (GPx) acts in co-ordination with other signaling molecules to exert its own antioxidant role. We have demonstrated the protective effects of GPx,/GPx-1, a selenium-dependent enzyme, on various neurodegenerative disorders (i.e., Parkinson's disease, Alzheimer's disease, cerebral ischemia, and convulsive disorders). In addition, we summarized the recent findings indicating that GPx-1 might play a role as a neuromodulator in neuropsychiatric conditions, such as, stress, bipolar disorder, schizophrenia, and drug intoxication. In this review, we attempted to highlight the mechanistic scenarios mediated by the GPx/GPx-1 gene in impacting these neurodegenerative and neuropsychiatric disorders, and hope to provide new insights on the therapeutic interventions against these disorders.
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Affiliation(s)
- Garima Sharma
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea
| | - Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea
| | - Naveen Sharma
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea; Department of Global Innovative Drugs, Graduate School of Chung-Ang University, College of Medicine, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine and Bio/Molecular Informatics Center, Konkuk University, Seoul, 05029, Republic of Korea
| | - Huynh Nhu Mai
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea; Pharmacy Faculty, Can Tho University of Medicine and Pharmacy, Can Tho City, 900000, Viet Nam
| | - Bao Trong Nguyen
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea
| | - Ji Hoon Jeong
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, College of Medicine, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Xin Gen Lei
- Department of Animal Science, Cornell University, Ithaca, NY, 14853, USA
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, 24341, Republic of Korea.
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Insights into Potential Targets for Therapeutic Intervention in Epilepsy. Int J Mol Sci 2020; 21:ijms21228573. [PMID: 33202963 PMCID: PMC7697405 DOI: 10.3390/ijms21228573] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023] Open
Abstract
Epilepsy is a chronic brain disease that affects approximately 65 million people worldwide. However, despite the continuous development of antiepileptic drugs, over 30% patients with epilepsy progress to drug-resistant epilepsy. For this reason, it is a high priority objective in preclinical research to find novel therapeutic targets and to develop effective drugs that prevent or reverse the molecular mechanisms underlying epilepsy progression. Among these potential therapeutic targets, we highlight currently available information involving signaling pathways (Wnt/β-catenin, Mammalian Target of Rapamycin (mTOR) signaling and zinc signaling), enzymes (carbonic anhydrase), proteins (erythropoietin, copine 6 and complement system), channels (Transient Receptor Potential Vanilloid Type 1 (TRPV1) channel) and receptors (galanin and melatonin receptors). All of them have demonstrated a certain degree of efficacy not only in controlling seizures but also in displaying neuroprotective activity and in modifying the progression of epilepsy. Although some research with these specific targets has been done in relation with epilepsy, they have not been fully explored as potential therapeutic targets that could help address the unsolved issue of drug-resistant epilepsy and develop new antiseizure therapies for the treatment of epilepsy.
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15
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Jia W, Song Y, Yang L, Kong J, Boczek T, He Z, Wang Y, Zhang X, Hu H, Shao D, Tang H, Xia L, Xu X, Guo F. The changes of serum zinc, copper, and selenium levels in epileptic patients: a systematic review and meta-analysis. Expert Rev Clin Pharmacol 2020; 13:1047-1058. [PMID: 32856976 DOI: 10.1080/17512433.2020.1816821] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION It is widely accepted that trace elements have been implicated in various metabolic processes. Valproic acid (VPA) is a remarkably safe and effective antiepileptic drug. There is no consensus option regarding the fluctuations in serum zinc (Zn), copper (Cu), and selenium (Se) in epileptic patients treated with VPA. We applied a meta-analysis to systematically assess the effects of VPA on serum ions in these patients. AREAS COVERED In this study, we performed a meta-analysis of the changes in serum Zn, Cu, and Se levels in human samples of healthy controls, epileptic patients, and patients treated with VPA. Twenty-two published analyzable studies were selected by searching the databases of PubMed, China National Knowledge Infrastructure (CNKI), Google Scholar, Web of Science, EMBASE, WAN FANG and Vip. EXPERT OPINION Serum Se levels in epileptic patients were decreased compared to healthy controls. Serum Zn levels in patients with VPA treatment were significantly lower than those in epileptic patients. The results of this meta-analysis are instructive for the intake of trace elements such as Zn, Cu, and Se in the diet balance of patients with epilepsy treated with VPA. Meanwhile, this study provides a theoretical basis for the combined use of other drugs that affect the intake and absorption of trace elements and VPA.
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Affiliation(s)
- Wanying Jia
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Yang Song
- School of Humanities and Social Sciences, China Medical University , Shenyang, China
| | - Lei Yang
- Tianjin Customs, Technical Center for Safety of Industrial Products , Tianjin, China
| | - Jingjing Kong
- Department of Gerontology, The First Affiliated Hospital of Dalian Medical University , Dalian, China
| | - Tomasz Boczek
- Department of Ophthalmology, Stanford University School of Medicine , Palo Alto, CA, USA
| | - Zhenwei He
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University , Shenyang, China
| | - Yuting Wang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Xiaohong Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Huiyuan Hu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Dongxue Shao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Hong Tang
- School of Public Health, China Medical University , Shenyang, China
| | - Liguang Xia
- Department of Pediatric Surgery, The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University , Wenzhou, China
| | - Xiaoxue Xu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
| | - Feng Guo
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University , Shenyang, China
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16
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Eissa MA, Abdulghani KO, Nada MA, Elkhawas HM, Shouman AE, Ahmed NS. Serum zinc and copper levels in a sample of Egyptian epileptic children. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2020. [DOI: 10.1186/s41983-020-00210-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Epilepsy is among the most common disabling neurological disorders among children. Altered serum levels of zinc and copper may facilitate seizure occurrence and repetition, and antiepileptic drugs may disturb their serum levels affecting disease control and outcome.
Objective
To investigate the association between serum levels of zinc and copper and epilepsy and antiepileptic treatment in a group of Egyptian epileptic children.
Methods
Case-control study on 100 epileptic patients, aged from 2 to 16 years, from neurology outpatient clinic and 50 apparently healthy children with matched age and sex. Venous samples were withdrawn from patients and controls then serum levels of zinc and copper were measured with graphite furnace atomic absorption spectrometer-A Analyst 800.
Results
Serum zinc level of patients’ group was significantly lower than that of controls with a mean of 59.1 μ/dL ± 22.7 and 85 μ/dL ± 22.2, respectively (P < 0.01). Serum zinc level of patients with history of febrile seizures was significantly decreased compared to patients without history of febrile seizures with a mean of 41.5 μ/dL ± 20.1 and 67.9 μ/dL ± 19.3, respectively (P < 0.01). Patient on carbamazepine intake showed significantly lower zinc serum level than patients without carbamazepine intake, with a mean of 49.0 μ/dL ± 17 and 61.8 μ/dL ± 23.4, respectively (P < 0.01). A significant negative correlation was noted between the duration of illness of epilepsy and the mean copper serum level (P < 0.05).
Conclusion
Zinc and copper altered homeostasis have mounting evidence about their role in the pathogenesis of epilepsy. Designing treatment plans that selectively restore zinc and copper normal levels may be a beneficial strategy in the future.
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Vitale S, Hague DW, Foss K, de Godoy MC, Selmic LE. Comparison of Serum Trace Nutrient Concentrations in Epileptics Compared to Healthy Dogs. Front Vet Sci 2019; 6:467. [PMID: 31921923 PMCID: PMC6930867 DOI: 10.3389/fvets.2019.00467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 12/02/2019] [Indexed: 12/11/2022] Open
Abstract
Idiopathic epilepsy (IE) is a common cause of seizures in dogs. There are several investigations regarding serum concentrations of trace nutrients, including copper, selenium, zinc, manganese, and iron in human epileptics and animal models. However, research of this nature in dogs with epilepsy is lacking. The purpose of this prospective study was to compare serum concentrations of several trace nutrients in healthy dogs to dogs with idiopathic epilepsy. Healthy client-owned dogs (n = 50) and dogs with IE (n = 92) were enrolled and blood samples were collected for trace nutrient analysis. Epileptics were subdivided into three groups: controlled: n = 27, uncontrolled: n = 42, and untreated: n = 23. Serum was evaluated for concentrations of copper, selenium, zinc, cobalt, manganese, molybdenum, and iron using inductively coupled plasma mass spectroscopy. Uncontrolled epileptics had significantly higher manganese concentrations compared to normal dogs (p = 0.007). Untreated epileptics had higher iron levels than the other three groups (p = 0.04). Significantly higher levels of copper (p < 0.0001) were found in controlled and uncontrolled epileptics compared to normal or untreated dogs. Significantly higher levels of molybdenum (p = 0.01) were found in controlled epileptics compared to normal or untreated epileptics. Uncontrolled and controlled epileptics had significantly higher levels of selenium (p = 0.0003) vs. normal dogs, and uncontrolled epileptics had higher levels of zinc (p = 0.0002) than normal and untreated dogs. The significant difference in serum concentrations of several trace nutrients (manganese, selenium, and zinc) may suggest a role for these nutrients in the pathophysiology and/or treatment of epilepsy. Additionally, these results suggest that anti-convulsant therapy may affect copper and molybdenum metabolism.
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Affiliation(s)
- Samantha Vitale
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, United States
| | - Devon Wallis Hague
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, United States
| | - Kari Foss
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, United States
| | | | - Laura E Selmic
- Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, United States
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18
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Chen NN, Zhao DJ, Sun YX, Wang DD, Ni H. Long-Term Effects of Zinc Deficiency and Zinc Supplementation on Developmental Seizure-Induced Brain Damage and the Underlying GPR39/ZnT-3 and MBP Expression in the Hippocampus. Front Neurosci 2019; 13:920. [PMID: 31551684 PMCID: PMC6737275 DOI: 10.3389/fnins.2019.00920] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/16/2019] [Indexed: 01/17/2023] Open
Abstract
We previously illustrated that long-term upregulated expression of ZnT-3 in the hippocampus of rats that underwent neonatal seizures was restored by pretreatment with a ketogenic diet. It was recently demonstrated that upregulated expression of ZnT-3 was associated with increased concentrations of intracellular free zinc ions in an in vitro model of glutamate-induced hippocampal neuronal excitotoxic damage. However, there is still a lack of research on the effects of different concentrations of zinc in the diet on developmental convulsive brain injury. The aim of this study was to investigate the effects of different zinc concentrations in the diet on long-term neurobehavioral and seizure thresholds following lithium chloride-pilocarpine-induced developmental seizures. Sprague-Dawley rats (postnatal day 27, P27) were randomly assigned to one of six dietary groups for 4 weeks: normal zinc control group (Control group, 44 mg/kg Zn), Zn-deficient control group (ZD group, 2.7 mg/kg Zn), Zn supplemented control group (ZS group, 246 mg/kg Zn), pilocarpine-induced seizure plus regular zinc diet group (SE group, 44 mg/kg Zn), seizure plus low-zinc diet group (SE + ZD group, 2.7 mg/kg Zn), and seizure plus high-zinc diet group (SE + ZS group, 246 mg/kg Zn). Novel object recognition and passive avoidance tests were performed on rats at P42 and P56. After routine seizure threshold detection and Timm staining procedures at P57, expression of GPR39, ZnT-3, and MBP were detected in the hippocampus by Western blot analysis. The results revealed that the Zinc-deficient diet for 4 weeks aggravated the long-term adverse effects of developmental seizures, evidenced by weight, cognition, seizure threshold and serum zinc concentrations, which were paralleled by expression changes in hippocampal GPR39 and ZnT-3. In contrast, zinc supplementation for 4 weeks significantly improved damage-related changes described above and rescued the abnormal expression of GPR39, ZnT-3, and MBP in the hippocampus. Similar alterations between the expression pattern of MBP and aberrant sprouting of mossy fibers in the hippocampus may indicate that sprouting is a secondary pathological change caused by developmental brain damage rather than the cause of epileptogenesis. Up-regulation of MBP protein levels in the high zinc diet-treated seizure group as well as the corresponding improvement of cognitive impairment and reduced hippocampal mossy fiber regenerative sprouting, may represent a compensatory mechanism for neuronal membrane damage and repair.
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Affiliation(s)
- Ni-Na Chen
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Dong-Jing Zhao
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Yu-Xiao Sun
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Dan-Dan Wang
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Hong Ni
- Division of Brain Science, Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
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19
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Ibrahim SAZ, Kerkadi A, Agouni A. Selenium and Health: An Update on the Situation in the Middle East and North Africa. Nutrients 2019; 11:E1457. [PMID: 31252568 PMCID: PMC6682981 DOI: 10.3390/nu11071457] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/15/2019] [Accepted: 06/19/2019] [Indexed: 12/22/2022] Open
Abstract
Selenium (Se) is an important trace element that should be present in the diet of all age groups to provide an adequate intake. Se is incorporated in 25 known selenoproteins, which mediate the biological effects of Se including, immune response regulation, maintenance of thyroid function, antioxidant defense, and anti-inflammatory actions. A balanced intake of Se is critical to achieve health benefits because depending on its status, Se has been found to play physiological roles or contribute to the pathophysiology of various diseases including, neurodegenerative diseases, diabetes, cancer, and cardiovascular disorders. Se status and intake are very important to be known for a specific population as the levels of Se are highly variable among different populations and regions. In the Middle East and North African (MENA) region, very little is known about the status of Se. Studies available show that Se status is widely variable with some countries being deficient, some over sufficient, and some sufficient. This variability was apparent even within the same country between regions. In this review, we summarized the key roles of Se in health and disease and discussed the available data on Se status and intake among countries of the MENA region.
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Affiliation(s)
- Sohayla A Z Ibrahim
- Department of Pharmaceutical Sciences, College of Pharmacy, QU health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Abdelhamid Kerkadi
- Department of Nutrition, College of Health Sciences, QU health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Abdelali Agouni
- Department of Pharmaceutical Sciences, College of Pharmacy, QU health, Qatar University, P.O. Box 2713, Doha, Qatar.
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20
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Solovyev N, Drobyshev E, Bjørklund G, Dubrovskii Y, Lysiuk R, Rayman MP. Selenium, selenoprotein P, and Alzheimer's disease: is there a link? Free Radic Biol Med 2018; 127:124-133. [PMID: 29481840 DOI: 10.1016/j.freeradbiomed.2018.02.030] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/18/2018] [Accepted: 02/22/2018] [Indexed: 12/13/2022]
Abstract
The essential trace element, selenium (Se), is crucial to the brain but it may be potentially neurotoxic, depending on dosage and speciation; Se has been discussed for decades in relation to Alzheimer's disease (AD). Selenoprotein P (SELENOP) is a secreted heparin-binding glycoprotein which serves as the main Se transport protein in mammals. In vivo studies showed that this protein might have additional functions such as a contribution to redox regulation. The current review focuses on recent research on the possible role of SELENOP in AD pathology, based on model and human studies. The review also briefly summarizes results of epidemiological studies on Se supplementation in relation to brain diseases, including PREADViSE, EVA, and AIBL. Although mainly positive effects of Se are assessed in this review, possible detrimental effects of Se supplementation or exposure, including potential neurotoxicity, are also mentioned. In relation to AD, various roles of SELENOP are discussed, i.e. as the means of Se delivery to neurons, as an antioxidant, in cytoskeleton assembly, in interaction with redox-active metals (copper, iron, and mercury) and with misfolded proteins (amyloid-beta and hyperphosphorylated tau-protein).
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Affiliation(s)
- Nikolay Solovyev
- St. Petersburg State University, Institute of Chemistry, St. Petersburg, Russian Federation.
| | - Evgenii Drobyshev
- Universität Potsdam, Institut für Ernährungswissenschaft, Potsdam, Germany
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Mo i Rana, Norway.
| | - Yaroslav Dubrovskii
- St. Petersburg State University, Institute of Chemistry, St. Petersburg, Russian Federation
| | - Roman Lysiuk
- Department of Pharmacognosy and Botany, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Margaret P Rayman
- Department of Nutritional Sciences, University of Surrey, Guildford, UK
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21
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El-Masry HMA, Sadek AA, Hassan MH, Ameen HH, Ahmed HA. Metabolic profile of oxidative stress and trace elements in febrile seizures among children. Metab Brain Dis 2018; 33:1509-1515. [PMID: 29946956 DOI: 10.1007/s11011-018-0258-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 05/28/2018] [Indexed: 01/01/2023]
Abstract
Febrile seizures (FS) are frequent convulsive disorders, occurring in infants and young children. The present study aims to assess and compare the serum levels of oxidative stress markers and some essential trace minerals in FS with normal or abnormal EEG and evaluate the effect of antioxidant therapy on the clinical outcome. This study has been carried out on 80 children with FS (40 with simple FS and 40 with complex FS) and 40 febrile children without seizures. Clinical and EEG findings were recorded for the included patients. Biochemical assays of serum nitric oxide (NO), malondialdehyde (MDA), superoxide dismutase (SOD), copper (Cu), zinc (Zn) and selenium (Se), using colorimetric methods, were measured in the studied groups. The overall results showed an increased values of NO, MDA and Cu with decreased values of SOD, Zn and Se in patients with FS (simple and complex) in comparison with febrile children without seizures (p < 0.05 for all). Additionally, NO and MDA was increased in complex FS patients with EEG abnormalities in comparison with complex FS with normal EEG findings (p < 0.05); NO and MDA were also significantly decreased after valproate therapy in complex FS patients (p < 0.05 for all). In conclusions, oxidative stress, decreased Zn and Se with increased Cu may play a role in FS. Valproate improves the oxidative stress status in complex FS.
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Affiliation(s)
- Hosny M A El-Masry
- Department of Pediatrics, Faculty of Medicine Al-Azhar University (Assiut Branch), Assiut, Egypt
| | - Abdelrahim A Sadek
- Pediatric Neurology Unit, Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Mohammed H Hassan
- Medical Biochemistry and Molecular Biology Department, Qena Faculty of Medicine, South Valley University, Qena, Egypt.
| | - Hesham H Ameen
- Clinical Pathology Department, Faculty of Medicine Al-Azhar University (Assiut Branch), Assiut, Egypt
| | - Hosny A Ahmed
- Department of Pediatrics, Faculty of Medicine Al-Azhar University (Assiut Branch), Assiut, Egypt
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22
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Abstract
There is a resurgence of interest in the role of metabolism in epilepsy. Long considered ancillary and acknowledged only in the context of clinical application of ketogenic diets, metabolic control of epilepsy is gaining momentum and mainstream interest among researchers. A metabolic paradigm for epilepsy rests upon known perturbations in three major interconnected metabolic nodes and therapeutic targets therefrom (i.e., glycolysis, mitochondria, and redox balance).
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23
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Abstract
Evidence from both preclinical and clinical studies suggest the importance of zinc homeostasis in seizures/epilepsy. Undoubtedly, zinc, via modulation of a variety of targets, is necessary for maintaining the balance between neuronal excitation and inhibition, while an imbalance between excitation and inhibition underlies seizures. However, the relationship between zinc signaling and seizures/epilepsy is complex as both extracellular and intracellular zinc may produce either protective or detrimental effects. This review provides an overview of preclinical/behavioral, functional and molecular studies, as well as clinical data on the involvement of zinc in the pathophysiology and treatment of seizures/epilepsy. Furthermore, the potential of targeting elements associated with zinc signaling or homeostasis and zinc levels as a therapeutic strategy for epilepsy is discussed.
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Affiliation(s)
- Urszula Doboszewska
- Department of Animal Physiology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland.
| | - Katarzyna Młyniec
- Department of Pharmacobiology, Jagiellonian University Medical College, Kraków, Poland
| | - Aleksandra Wlaź
- Department of Pathophysiology, Medical University of Lublin, Lublin, Poland
| | - Ewa Poleszak
- Department of Applied Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Gabriel Nowak
- Department of Pharmacobiology, Jagiellonian University Medical College, Kraków, Poland; Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Piotr Wlaź
- Department of Animal Physiology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
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24
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Zhang YP, Xue QH, Yang YS, Liu XY, Ma CM, Ru JX, Guo HC. A chromene pyrazoline derivatives fluorescent probe for Zn 2+ detection in aqueous solution and living cells. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Pearson-Smith JN, Patel M. Metabolic Dysfunction and Oxidative Stress in Epilepsy. Int J Mol Sci 2017; 18:ijms18112365. [PMID: 29117123 PMCID: PMC5713334 DOI: 10.3390/ijms18112365] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 01/17/2023] Open
Abstract
The epilepsies are a heterogeneous group of disorders characterized by the propensity to experience spontaneous recurrent seizures. Epilepsies can be genetic or acquired, and the underlying mechanisms of seizure initiation, seizure propagation, and comorbid conditions are incompletely understood. Metabolic changes including the production of reactive species are known to result from prolonged seizures and may also contribute to epilepsy development. In this review, we focus on the evidence that metabolic and redox disruption is both cause and consequence of epileptic seizures. Additionally, we discuss the promise of targeting redox processes as a therapeutic option in epilepsy.
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Affiliation(s)
- Jennifer N Pearson-Smith
- Department of Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Manisha Patel
- Department of Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.
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26
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Rashidian H, Liu YMC, Geraghty MT, Kobayashi J, Donner EJ, Klaassen RJ. Severe Neutropenia and Anemia in a Child With Epilepsy and Copper Deficiency on a Ketogenic Diet. Pediatr Neurol 2017; 76:93-94. [PMID: 28958403 DOI: 10.1016/j.pediatrneurol.2017.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 08/11/2017] [Accepted: 08/16/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Houman Rashidian
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Canada
| | - Y M Christiana Liu
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Canada
| | | | - Jeff Kobayashi
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Canada
| | - Elizabeth J Donner
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Canada
| | - Robert J Klaassen
- Division of Hematology/Oncology, Children's Hospital of Eastern Ontario, Canada.
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Intrauterine Zn Deficiency Favors Thyrotropin-Releasing Hormone-Increasing Effects on Thyrotropin Serum Levels and Induces Subclinical Hypothyroidism in Weaned Rats. Nutrients 2017; 9:nu9101139. [PMID: 29057835 PMCID: PMC5691755 DOI: 10.3390/nu9101139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/29/2017] [Accepted: 10/11/2017] [Indexed: 11/17/2022] Open
Abstract
Individuals who consume a diet deficient in zinc (Zn-deficient) develop alterations in hypothalamic-pituitary-thyroid axis function, i.e., a low metabolic rate and cold insensitivity. Although those disturbances are related to primary hypothyroidism, intrauterine or postnatal Zn-deficient adults have an increased thyrotropin (TSH) concentration, but unchanged thyroid hormone (TH) levels and decreased body weight. This does not support the view that the hypothyroidism develops due to a low Zn intake. In addition, intrauterine or postnatal Zn-deficiency in weaned and adult rats reduces the activity of pyroglutamyl aminopeptidase II (PPII) in the medial-basal hypothalamus (MBH). PPII is an enzyme that degrades thyrotropin-releasing hormone (TRH). This hypothalamic peptide stimulates its receptor in adenohypophysis, thereby increasing TSH release. We analyzed whether earlier low TH is responsible for the high TSH levels reported in adults, or if TRH release is enhanced by Zn deficiency at weaning. Dams were fed a 2 ppm Zn-deficient diet in the period from one week prior to gestation and up to three weeks after delivery. We found a high release of hypothalamic TRH, which along with reduced MBH PPII activity, increased TSH levels in Zn-deficient pups independently of changes in TH concentration. We found that primary hypothyroidism did not develop in intrauterine Zn-deficient weaned rats and we confirmed that metal deficiency enhances TSH levels since early-life, favoring subclinical hypothyroidism development which remains into adulthood.
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Broman M, Lindfors M, Norberg Å, Hebert C, Rooyackers O, Wernerman J, Fläring U. Low serum selenium is associated with the severity of organ failure in critically ill children. Clin Nutr 2017; 37:1399-1405. [PMID: 28689669 DOI: 10.1016/j.clnu.2017.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 02/27/2017] [Accepted: 06/11/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND & AIMS Low concentration of serum selenium is associated with the inflammatory response and multiple organ failure in adult ICU-patients. Critically ill children are less well characterized. In this study, serum selenium concentration and its possible relation to multiple organ failure as well as glutathione status was investigated in pediatric intensive care (PICU) patients. METHODS A prospective consecutive cohort of critically ill children (n = 100) admitted to the PICU of a tertiary university hospital, and in addition an age stratified reference group of healthy children (n = 60) were studied. The concentrations of serum selenium and reduced and total glutathione were determined at admission and at day 5 for patients still in the PICU. RESULTS Low concentration of serum selenium as well as a high-reduced fraction of glutathione (GSH/tGSH) was associated with multiple organ failure (p < 0.001 and p < 0.01) respectively. A correlation between low serum selenium concentration and high-reduced fraction of glutathione (GSH/tGSH) was also seen (r = -0.19 and p = 0.03). The serum selenium concentrations in the pediatric reference group in a selenium poor area were age dependent with lower concentrations in infants as compared to older children (p < 0.001). CONCLUSIONS Both low serum selenium concentration and high reduced fraction of glutathione (GSH/tGSH) were associated with the development of multiple organ failure. The association between low serum selenium concentration and high fraction of reduced glutathione in whole blood favour the hypothesis that selenium is of critical importance for the scavenge capacity of glutathione peroxidase (GPX).
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Affiliation(s)
- M Broman
- Department of Pediatric Perioperative Medicine and Intensive Care, ECMO-Centre at Astrid Lindgren Children's Hospital, Karolinska University Hospital Stockholm, Sweden; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Mattias Lindfors
- Department of Pediatric Perioperative Medicine and Intensive Care, ECMO-Centre at Astrid Lindgren Children's Hospital, Karolinska University Hospital Stockholm, Sweden; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Åke Norberg
- Centre for Surgical Sciences, Karolinska Institutet, Stockholm, Sweden; Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital Stockholm, Sweden
| | - Christina Hebert
- Centre for Surgical Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Olav Rooyackers
- Centre for Surgical Sciences, Karolinska Institutet, Stockholm, Sweden; Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital Stockholm, Sweden
| | - Jan Wernerman
- Centre for Surgical Sciences, Karolinska Institutet, Stockholm, Sweden; Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital Stockholm, Sweden
| | - Urban Fläring
- Department of Pediatric Perioperative Medicine and Intensive Care, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Sweden; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
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Li CR, Li SL, Yang ZY. Development of a coumarin-furan conjugate as Zn 2+ ratiometric fluorescent probe in ethanol-water system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 174:214-222. [PMID: 27915158 DOI: 10.1016/j.saa.2016.11.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
In this study, a novel coumarin-derived compound bearing the furan moiety called 7-diethylamino-3-formylcoumarin (2'-furan formyl) hydrazone (1) has been designed, synthesized and evaluated as a Zn2+ ratiometric fluorescent probe in ethanol-water system. This probe 1 showed good selectivity and high sensitivity towards Zn2+ over other metal ions investigated, and a decrease in fluorescence emission intensity at 511nm accompanied by an enhancement in fluorescence emission intensity at 520nm of this probe 1 was observed in the presence of Zn2+ in ethanol-water (V : V=9 : 1) solution, which provided ratiometric fluorescence detection of Zn2+. Additionally, the ratiometric fluorescence response of 1 to Zn2+ was nearly completed within 0.5min, which suggested that this probe 1 could be utilized for sensing and monitoring Zn2+ in environmental and biological systems for real-time detection.
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Affiliation(s)
- Chao-Rui Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Si-Liang Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China; School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - Zheng-Yin Yang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
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Tabrizian K, Azami K, Belaran M, Soodi M, Abdi K, Fanoudi S, Sanati M, Mottaghi Dastjerdi N, Soltany Rezaee-Rad M, Sharifzadeh M. Selective Inducible Nitric Oxide Synthase Inhibitor Reversed Zinc Chloride-Induced Spatial Memory Impairment via Increasing Cholinergic Marker Expression. Biol Trace Elem Res 2016; 173:443-51. [PMID: 27025719 DOI: 10.1007/s12011-016-0679-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/15/2016] [Indexed: 12/13/2022]
Abstract
Zinc, an essential micronutrient and biochemical element of the human body, plays structural, catalytic, and regulatory roles in numerous physiological functions. In the current study, the effects of a pretraining oral administration of zinc chloride (10, 25, and 50 mg/kg) for 14 consecutive days and post-training bilateral intra-hippocampal infusion of 1400W as a selective inducible nitric oxide synthase (iNOS) inhibitor (10, 50, and 100 μM/side), alone and in combination, on the spatial memory retention in Morris water maze (MWM) were investigated. Animals were trained for 4 days and tested 48 h after completion of training. Also, the molecular effects of these compounds on the expression of choline acetyltransferase (ChAT), as a cholinergic marker in the CA1 region of the hippocampus and medial septal area (MSA), were evaluated. Behavioral and molecular findings of this study showed that a 2-week oral administration of zinc chloride (50 mg/kg) impaired spatial memory retention in MWM and decreased ChAT expression. Immunohistochemical analysis of post-training bilateral intra-hippocampal infusion of 1400W revealed a significant increase in ChAT immunoreactivity. Furthermore, post-training bilateral intra-hippocampal infusion of 1400W into the CA1 region of the hippocampus reversed zinc chloride-induced spatial memory impairment in MWM and significantly increased ChAT expression in comparison with zinc chloride-treated animals. Taken together, these results emphasize the role of selective iNOS inhibitors in reversing zinc chloride-induced spatial memory deficits via modulation of cholinergic marker expression.
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Affiliation(s)
- Kaveh Tabrizian
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | - Kian Azami
- Family Health Research Center, Iranian Petroleum Industry Health Research Institute, Tehran, Iran
| | - Maryam Belaran
- Department of Physiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maliheh Soodi
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Khosrou Abdi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Fanoudi
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Sanati
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, Iran
| | - Negar Mottaghi Dastjerdi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, Iran
| | - Mohammad Soltany Rezaee-Rad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, Iran
| | - Mohammad Sharifzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, Iran.
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Khan MZ. A possible significant role of zinc and GPR39 zinc sensing receptor in Alzheimer disease and epilepsy. Biomed Pharmacother 2016; 79:263-72. [PMID: 27044837 DOI: 10.1016/j.biopha.2016.02.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 02/16/2016] [Accepted: 02/16/2016] [Indexed: 12/14/2022] Open
Abstract
Zinc the essential trace element, plays a significant role in the brain development and in the proper brain functions at every stage of life. Misbalance of zinc (Zn(2+)) ions in the central nervous system is involved in the pathogenesis of numerous neurodegenerative disorders such as Alzheimer's disease, Depression, and Epilepsy. In brain, Zn(2+) has been identified as a ligand, capable of activating and inhibiting the receptors including the NMDA-type glutamate receptors (NMDARs), GABAA receptors, nicotinic acetylcholine receptors (nAChRs), glycine receptors (glyR) and serotonin receptors (5-HT3). Recently GPR39 has been identified as a zinc-specific receptor, widely expressed in brain tissues including the frontal cortex, amygdala, and hippocampus. GPR39, when binding with Zn(2+) has shown promising therapeutic potentials. This review presents current knowledge regarding the role of GPR39 zinc sensing receptor in brain, with a focus on Alzheimer's disease and Epilepsy. Although the results are encouraging, further research is needed to clarify zinc and GPR39 role in the treatment of Alzheimer's disease and Epilepsy.
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Affiliation(s)
- Muhammad Zahid Khan
- Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China.
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Talat MA, Ahmed A, Mohammed L. Serum levels of zinc and copper in epileptic children during long-term therapy with anticonvulsants. ACTA ACUST UNITED AC 2016; 20:341-5. [PMID: 26492112 PMCID: PMC4727616 DOI: 10.17712/nsj.2015.4.20150336] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective: To evaluate the serum levels of zinc and copper in epileptic children during the long-term treatment of anticonvulsant drugs and correlate this with healthy subjects. Methods: A hospital-based group matched case-control study was conducted in the Department of Pediatrics, Faculty of Medicine, Zagazig University, Zagazig, Egypt between November 2013 and October 2014. Ninety patients aged 7.1±3.6 years were diagnosed with epilepsy by a neurologist. The control group was selected from healthy individuals and matched to the case group. Serum zinc and copper were measured by the calorimetric method using a colorimetric method kit. Results: The mean zinc level was 60.1±22.6 ug/dl in the cases, and 102.1±18 ug/dl in the controls (p<0.001). The mean copper level was 180.1±32.4 ug/dl in cases compared with 114.5±18.5 ug/dl in controls (p<0.001). Conclusion: Serum zinc levels in epileptic children under drug treatment are lower compared with healthy children. Also, serum copper levels in these patients are significantly higher than in healthy people. No significant difference in the levels of serum copper and zinc was observed in using one drug or multiple drugs in the treatment of epileptic patients.
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Affiliation(s)
- Mohamed A Talat
- Department of Pediatrics, Faculty of Medicine, Zagazig University, Zagazig, Egypt. E-mail:
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Saghazadeh A, Mahmoudi M, Meysamie A, Gharedaghi M, Zamponi GW, Rezaei N. Possible role of trace elements in epilepsy and febrile seizures: a meta-analysis. Nutr Rev 2015; 73:760-79. [DOI: 10.1093/nutrit/nuv026] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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Solovyev ND. Importance of selenium and selenoprotein for brain function: From antioxidant protection to neuronal signalling. J Inorg Biochem 2015; 153:1-12. [PMID: 26398431 DOI: 10.1016/j.jinorgbio.2015.09.003] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 09/03/2015] [Accepted: 09/09/2015] [Indexed: 12/21/2022]
Abstract
Multiple biological functions of selenium manifest themselves mainly via 25 selenoproteins that have selenocysteine at their active centre. Selenium is vital for the brain and seems to participate in the pathology of disorders such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and epilepsy. Since selenium was shown to be involved in diverse functions of the central nervous system, such as motor performance, coordination, memory and cognition, a possible role of selenium and selenoproteins in brain signalling pathways may be assumed. The aim of the present review is to analyse possible relations between selenium and neurotransmission. Selenoproteins seem to be of special importance in the development and functioning of GABAergic (GABA, γ-aminobutyric acid) parvalbumin positive interneurons of the cerebral cortex and hippocampus. Dopamine pathway might be also selenium dependent as selenium shows neuroprotection in the nigrostriatal pathway and also exerts toxicity towards dopaminergic neurons under higher concentrations. Recent findings also point to acetylcholine neurotransmission involvement. The role of selenium and selenoproteins in neurotransmission might not only be limited to their antioxidant properties but also to inflammation, influencing protein phosphorylation and ion channels, alteration of calcium homeostasis and brain cholesterol metabolism. Moreover, a direct signalling function was proposed for selenoprotein P through interaction with post-synaptic apoliprotein E receptors 2 (ApoER2).
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Affiliation(s)
- Nikolay D Solovyev
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russian Federation.
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Gilad D, Shorer S, Ketzef M, Friedman A, Sekler I, Aizenman E, Hershfinkel M. Homeostatic regulation of KCC2 activity by the zinc receptor mZnR/GPR39 during seizures. Neurobiol Dis 2015; 81:4-13. [PMID: 25562657 PMCID: PMC4490144 DOI: 10.1016/j.nbd.2014.12.020] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 12/11/2014] [Accepted: 12/23/2014] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to investigate the role of the synaptic metabotropic zinc receptor mZnR/GPR39 in physiological adaptation to epileptic seizures. We previously demonstrated that synaptic activation of mZnR/GPR39 enhances inhibitory drive in the hippocampus by upregulating neuronal K(+)/Cl(-) co-transporter 2 (KCC2) activity. Here, we first show that mZnR/GPR39 knockout (KO) adult mice have dramatically enhanced susceptibility to seizures triggered by a single intraperitoneal injection of kainic acid, when compared to wild type (WT) littermates. Kainate also substantially enhances seizure-associated gamma oscillatory activity in juvenile mZnR/GPR39 KO hippocampal slices, a phenomenon that can be reproduced in WT tissue by extracellular Zn(2+) chelation. Importantly, kainate-induced synaptic Zn(2+) release enhances surface expression and transport activity of KCC2 in WT, but not mZnR/GPR39 KO hippocampal neurons. Kainate-dependent upregulation of KCC2 requires mZnR/GPR39 activation of the Gαq/phospholipase C/extracellular regulated kinase (ERK1/2) signaling cascade. We suggest that mZnR/GPR39-dependent upregulation of KCC2 activity provides homeostatic adaptation to an excitotoxic stimulus by increasing inhibition. As such, mZnR/GPR39 may provide a novel pharmacological target for dampening epileptic seizure activity.
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Affiliation(s)
- David Gilad
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel
| | - Sharon Shorer
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel
| | - Maya Ketzef
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel
| | - Alon Friedman
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel
| | - Israel Sekler
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel
| | - Elias Aizenman
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel; Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Michal Hershfinkel
- Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer-Sheva, Israel.
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Saad K, El-Houfey AA, Abd El-Hamed MA, El-Asheer OM, Al-Atram AA, Tawfeek MSK. A randomized, double-blind, placebo-controlled clinical trial of the efficacy of treatment with zinc in children with intractable epilepsy. FUNCTIONAL NEUROLOGY 2015; 30:181-5. [PMID: 26415035 PMCID: PMC4610753 DOI: 10.11138/fneur/2015.30.3.181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study was conducted to assess the efficacy of oral zinc supplementation in children with intractable epilepsy. Forty-five children aged between three and 12 years and diagnosed with idiopathic intractable epilepsy at Assiut University Hospital, Assiut, Egypt were recruited. The patients were randomly allocated to two groups: the intervention group received oral zinc supplementation (1 mg/kg/day) while the placebo group received placebo, each for six months. The parents of each child filled in a detailed questionnaire that covered demographic characteristics, type of seizures, frequency, duration of seizures, previous hospital admissions, postictal phenomena and the occurrence of status epilepticus. The primary outcome (frequency of seizures) was compared between the two groups. Zinc supplementation resulted in a significant reduction of seizure frequency in 31% of the treated children. Zinc is an important trace element. Our results suggest that it has mildly beneficial effects in children with intractable epilepsy. We recommend further investigation of oral zinc supplementation as an adjunctive therapy for managing intractable epilepsy in children. Zinc therapy may be an option in treatment protocols for intractable epilepsy in the near future.
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Affiliation(s)
- Khaled Saad
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt
- Correspondence to: Khaled Saad, E-mail:
| | - Amira A. El-Houfey
- Department of Community Health Nursing, Assiut University, Assiut, Egypt
| | | | - Osama M. El-Asheer
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt
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Stoffaneller R, Morse NL. A review of dietary selenium intake and selenium status in Europe and the Middle East. Nutrients 2015; 7:1494-537. [PMID: 25734564 PMCID: PMC4377864 DOI: 10.3390/nu7031494] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 01/23/2015] [Accepted: 02/05/2015] [Indexed: 11/17/2022] Open
Abstract
This is a systematic review of existing data on dietary selenium (Se) intake and status for various population groups in Europe (including the United Kingdom (UK)) and the Middle East. It includes English language systematic reviews, meta-analyses, randomised controlled trials, cohort studies, cross-sectional and case-control studies obtained through PUBMED searches from January, 2002, to November, 2014, for European data and from 1990 to November 2014, for Middle Eastern data. Reports were selected if they included data on Se intake and status. The search identified 19 European/UK studies and 15 investigations in the Middle East that reported Se intake and Se concentration in water and/or food and 48 European/UK studies and 44 investigations in the Middle East reporting Se status. Suboptimal Se status was reported to be widespread throughout Europe, the UK and the Middle East, and these results agreed with previous reports highlighting the problem. Eastern European countries had lower Se intake than Western European countries. Middle Eastern studies provided varying results, possibly due to varying food habits and imports in different regions and within differing socioeconomic groups. In conclusion, Se intake and status is suboptimal in European and Middle Eastern countries, with less consistency in the Middle East.
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Affiliation(s)
- Rita Stoffaneller
- Station Road, Polegate, East Sussex, BN26 6EA, UK.
- Research consultant to Wassen International Ltd. Cedar Court Office Park, Denby Dale Road, Wakefield WF4 3DB, UK.
| | - Nancy L Morse
- Research consultant to Wassen International Ltd. Cedar Court Office Park, Denby Dale Road, Wakefield WF4 3DB, UK.
- Horsburgh Dr., Berwick, N.S., B0P 1E0, Canada.
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Selenium-Functionalized Molecules (SeFMs) as Potential Drugs and Nutritional Supplements. TOPICS IN MEDICINAL CHEMISTRY 2015. [DOI: 10.1007/7355_2015_87] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Pitts MW, Byrns CN, Ogawa-Wong AN, Kremer P, Berry MJ. Selenoproteins in nervous system development and function. Biol Trace Elem Res 2014; 161:231-45. [PMID: 24974905 PMCID: PMC4222985 DOI: 10.1007/s12011-014-0060-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 06/23/2014] [Indexed: 01/03/2023]
Abstract
Selenoproteins are a distinct class of proteins that are characterized by the co-translational incorporation of selenium (Se) in the form of the 21st amino acid selenocysteine. Selenoproteins provide a key defense against oxidative stress, as many of these proteins participate in oxidation-reduction reactions neutralizing reactive oxygen species, where selenocysteine residues act as catalytic sites. Many selenoproteins are highly expressed in the brain, and mouse knockout studies have determined that several are required for normal brain development. In parallel with these laboratory studies, recent reports of rare human cases with mutations in genes involved in selenoprotein biosynthesis have described individuals with an assortment of neurological problems that mirror those detailed in knockout mice. These deficits include impairments in cognition and motor function, seizures, hearing loss, and altered thyroid metabolism. Additionally, due to the fact that oxidative stress is a key feature of neurodegenerative disease, there is considerable interest in the therapeutic potential of selenium supplementation for human neurological disorders. Studies performed in cell culture and rodent models have demonstrated that selenium administration attenuates oxidative stress, prevents neurodegeneration, and counters cell signaling mechanisms known to be dysregulated in certain disease states. However, there is currently no definitive evidence in support of selenium supplementation to prevent and/or treat common neurological conditions in the general population. It appears likely that, in humans, supplementation with selenium may only benefit certain subpopulations, such as those that are either selenium-deficient or possess genetic variants that affect selenium metabolism.
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Affiliation(s)
- Matthew W Pitts
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St, Honolulu, HI, 96813, USA,
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Alsaadi T, Alkaddour AR, Shahrour TM, Shakra M, Turkawi L, Shatila A. Midwakh-induced seizures: case series from UAE. Epilepsy Behav 2014; 39:85-7. [PMID: 25233482 DOI: 10.1016/j.yebeh.2014.08.132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 08/22/2014] [Accepted: 08/23/2014] [Indexed: 10/24/2022]
Abstract
Drug-induced seizures are rare causes of hospital admissions (Coleman, 2004). Various classes of drugs are reported to induce seizures either directly, due to their epileptogenic potential or due to drug withdrawal effect, or indirectly, due to systemic and CNS-related side effects (Thundiyil et al., 2011). Midwakh is commonly used among young Emiratis. However, its CNS-related adverse effects are not well studied. We report seven consecutive patients with a history of seizures provoked by smoking midwakh and a negative workup for epilepsy. Six of these patients had no further seizures after they had agreed to discontinue smoking midwakh.
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Affiliation(s)
- Taoufik Alsaadi
- Department of Neurology, Sheikh Khalifa Medical City (SKMC), Abu Dhabi, United Arab Emirates.
| | - Abdul Razzak Alkaddour
- Department of Cardiology, Sheikh Khalifa Medical City (SKMC), Abu Dhabi, United Arab Emirates
| | - Tarek M Shahrour
- Department of Psychiatry, Sheikh Khalifa Medical City (SKMC), Abu Dhabi, United Arab Emirates
| | - Mustafa Shakra
- Department of Neurology, Sheikh Khalifa Medical City (SKMC), Abu Dhabi, United Arab Emirates
| | - Lamya Turkawi
- Department of Neurology, Sheikh Khalifa Medical City (SKMC), Abu Dhabi, United Arab Emirates
| | - Ahmed Shatila
- Department of Neurology, Mafraq Hospital, Abu Dhabi, United Arab Emirates
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Association of Serum Trace Elements and Minerals with Genetic Generalized Epilepsy and Idiopathic Intractable Epilepsy. Neurochem Res 2014; 39:2370-6. [DOI: 10.1007/s11064-014-1439-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 09/13/2014] [Accepted: 09/16/2014] [Indexed: 11/08/2022]
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Effect of antiepileptic therapy on trace elements status in Indian population in a tertiary care hospital from northern India: A cross sectional study. Epilepsy Res 2014; 108:917-27. [DOI: 10.1016/j.eplepsyres.2014.01.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/11/2014] [Accepted: 01/19/2014] [Indexed: 01/16/2023]
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Pillai R, Uyehara-Lock JH, Bellinger FP. Selenium and selenoprotein function in brain disorders. IUBMB Life 2014; 66:229-39. [PMID: 24668686 DOI: 10.1002/iub.1262] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 03/10/2014] [Indexed: 01/14/2023]
Abstract
Selenoproteins are important for normal brain function, and decreased function of selenoproteins can lead to impaired cognitive function and neurological disorders. This review examines the possible roles of selenoproteins in Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and epilepsy. Selenium deficiency is associated with cognitive decline, and selenoproteins may be helpful in preventing neurodegeneration in AD. PD is associated with impaired function of glutathione peroxidase selenoenzymes. In HD, selenium deters lipid peroxidation by increasing specific glutathione peroxidases. Selenium deficiency increases risk of seizures in epilepsy, whereas supplementation may help to alleviate seizures. Further studies on the mechanisms of selenoprotein function will increase our understanding of how selenium and selenoproteins can be used in treatment and prevention of brain disorders.
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Affiliation(s)
- Roshan Pillai
- Department of Cell and Molecular Biology, University of Hawaii, John A. Burns School of Medicine, Honolulu, HI, USA
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Saad K, Hammad E, Hassan AF, Badry R. Trace element, oxidant, and antioxidant enzyme values in blood of children with refractory epilepsy. Int J Neurosci 2014; 124:181-6. [PMID: 23919524 DOI: 10.3109/00207454.2013.831851] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE The aim of this study is to evaluate the serum levels of some trace elements, oxidants, and antioxidants in children with intractable epilepsy compared to healthy children. PATIENTS AND METHODS In a case-control study, 40 children (24 males and 16 females) suffering from refractory generalized epileptic seizures were compared with 40 sex- and age-matched healthy children serve as a control group. Serum selenium (Se), zinc (Zn), copper (Cu), and plasma malondialdehyde (MDA) as well as erythrocyte glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) values were measured in the patients and controls. RESULTS Plasma MDA values of the patient group were significantly ( p < 0.001) higher than those in control. Serum Zn, Se, and erythrocyte GSH-Px values of the patient group are significantly ( p < 0.001) lower than those in control, although there is no statistical difference in Cu and SOD values. CONCLUSION Plasma MDA, erythrocyte GSH-Px, and trace elements Zn and Se may play an important role in the pathogenesis of intractable epilepsy in children.
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Affiliation(s)
- Khaled Saad
- 1Department of Pediatrics, Faculty of Medicine
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Rong L, Frontera AT, Benbadis SR. Tobacco smoking, epilepsy, and seizures. Epilepsy Behav 2014; 31:210-8. [PMID: 24441294 DOI: 10.1016/j.yebeh.2013.11.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 11/18/2013] [Accepted: 11/25/2013] [Indexed: 12/11/2022]
Abstract
Tobacco smoking is considered the greatest risk factor for death caused by noncommunicable diseases. In contrast to extensive research on the association between tobacco smoking and diseases such as heart attack, stroke, and cancers, studies on the association between tobacco smoking and seizures or epilepsy are insufficient. The exact roles tobacco smoking and nicotine use play in seizures or epilepsy have not been well reviewed. We reviewed available literature and found that 1) there are vast differences between tobacco smoke and nicotine based on their components and their effects on seizures or epilepsy; 2) the seizure risk in acute active tobacco smokers, women who smoke during pregnancy, electronic cigarette smokers, and the role of smoking in sudden unexplained/unexpected death in epilepsy remain unclear; 3) seizure risks are higher in acute secondhand smokers, chronic active smokers, and babies whose mothers smoke; 4) tobacco smoke protects against seizures in animal models whereas nicotine exerts mixed effects in animals; and 5) tobacco smoking agents can be noneffective, proconvulsant, or anticonvulsant. Finally, the opportunities for future research on this topic is discussed.
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Affiliation(s)
- Lingling Rong
- Department of Neurology, University of South Florida, Tampa, FL 33612, USA.
| | - Alfred T Frontera
- Department of Neurology, University of South Florida, Tampa, FL 33612, USA
| | - Selim R Benbadis
- Department of Neurology, University of South Florida, Tampa, FL 33612, USA
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Frye RE, Rossignol D, Casanova MF, Brown GL, Martin V, Edelson S, Coben R, Lewine J, Slattery JC, Lau C, Hardy P, Fatemi SH, Folsom TD, MacFabe D, Adams JB. A review of traditional and novel treatments for seizures in autism spectrum disorder: findings from a systematic review and expert panel. Front Public Health 2013; 1:31. [PMID: 24350200 PMCID: PMC3859980 DOI: 10.3389/fpubh.2013.00031] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 08/20/2013] [Indexed: 01/20/2023] Open
Abstract
Despite the fact that seizures are commonly associated with autism spectrum disorder (ASD), the effectiveness of treatments for seizures has not been well studied in individuals with ASD. This manuscript reviews both traditional and novel treatments for seizures associated with ASD. Studies were selected by systematically searching major electronic databases and by a panel of experts that treat ASD individuals. Only a few anti-epileptic drugs (AEDs) have undergone carefully controlled trials in ASD, but these trials examined outcomes other than seizures. Several lines of evidence point to valproate, lamotrigine, and levetiracetam as the most effective and tolerable AEDs for individuals with ASD. Limited evidence supports the use of traditional non-AED treatments, such as the ketogenic and modified Atkins diet, multiple subpial transections, immunomodulation, and neurofeedback treatments. Although specific treatments may be more appropriate for specific genetic and metabolic syndromes associated with ASD and seizures, there are few studies which have documented the effectiveness of treatments for seizures for specific syndromes. Limited evidence supports l-carnitine, multivitamins, and N-acetyl-l-cysteine in mitochondrial disease and dysfunction, folinic acid in cerebral folate abnormalities and early treatment with vigabatrin in tuberous sclerosis complex. Finally, there is limited evidence for a number of novel treatments, particularly magnesium with pyridoxine, omega-3 fatty acids, the gluten-free casein-free diet, and low-frequency repetitive transcranial magnetic simulation. Zinc and l-carnosine are potential novel treatments supported by basic research but not clinical studies. This review demonstrates the wide variety of treatments used to treat seizures in individuals with ASD as well as the striking lack of clinical trials performed to support the use of these treatments. Additional studies concerning these treatments for controlling seizures in individuals with ASD are warranted.
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Affiliation(s)
- Richard E. Frye
- Arkansas Children’s Hospital Research Institute, Little Rock, AR, USA
| | | | | | - Gregory L. Brown
- Autism Recovery and Comprehensive Health Medical Center, Franklin, WI, USA
| | - Victoria Martin
- Autism Recovery and Comprehensive Health Medical Center, Franklin, WI, USA
| | | | - Robert Coben
- New York University Brain Research Laboratory, New York, NY, USA
| | - Jeffrey Lewine
- MIND Research Network, University of New Mexico, Albuquerque, NM, USA
| | - John C. Slattery
- Arkansas Children’s Hospital Research Institute, Little Rock, AR, USA
| | - Chrystal Lau
- Arkansas Children’s Hospital Research Institute, Little Rock, AR, USA
| | - Paul Hardy
- Hardy Healthcare Associates, Hingham, MA, USA
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Davis C, Javid PJ, Horslen S. Selenium deficiency in pediatric patients with intestinal failure as a consequence of drug shortage. JPEN J Parenter Enteral Nutr 2013; 38:115-8. [PMID: 23587646 DOI: 10.1177/0148607113486005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Parenteral nutrition (PN) is a lifesaving therapy for children with intestinal failure and can now be used chronically without the life-threatening complications of the past. Adequate intravenous trace element supplementation is required as part of a complete nutrition prescription. According to the U.S. Food and Drug Administration (FDA), the number of drug shortages, including sterile injectable agents used as PN components, has increased since 2010. Selenious acid as an individual additive was recently unavailable at our institution for 9 months due to a national shortage. MATERIALS AND METHODS To assess the impact of the selenious acid shortage, we retrospectively compiled data from existing clinical records for eligible patients. We included children with intestinal failure on full PN support who were older than 1 year at the onset of the selenium shortage. Whole-blood selenium concentrations prior to the selenious acid shortage were compared with concentrations drawn during the shortage. RESULTS Five patients with intestinal failure and complete PN dependence were identified, and all 5 patients had normal serum selenium concentrations prior to the shortage. All 5 patients developed severe biochemical selenium deficiency in direct correlation with the shortage of selenium. No morbidity associated with selenium deficiency was observed. Selenium concentrations recovered after selenium supplementation was reinstituted. CONCLUSION A national selenious acid shortage was associated with biochemical selenium deficiency in a cohort of children with intestinal failure. Despite very low selenium concentrations, none of our patients exhibited clinical signs of deficiency.
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Affiliation(s)
- Cheryl Davis
- Seattle Children's Hospital, Seattle, Washington
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Effects of Antiepileptic Drugs on Antioxidant and Oxidant Molecular Pathways: Focus on Trace Elements. Cell Mol Neurobiol 2013; 33:589-99. [DOI: 10.1007/s10571-013-9936-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 03/27/2013] [Indexed: 11/26/2022]
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Low levels of trace elements found in paediatric epilepsy. Nat Rev Neurol 2012. [DOI: 10.1038/nrneurol.2012.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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