Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study
Abstract Background Nicotinamide N-methyltransferase (NNMT) has been implicated in the pathogenesis of neuropsychiatric diseases. Bipolar disorder (BD) is associated with metabolic abnormalities and NNMT regulates energy metabolism and may also exert a causal role in metabolic disorders. The present...
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BMC
2020-01-01
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Series: | BMC Psychiatry |
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Online Access: | https://doi.org/10.1186/s12888-020-2461-4 |
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author | Qing Hu Farong Liu Luyin Yang Zanxi Fang Jue He Wenqiang Wang Pan You |
author_facet | Qing Hu Farong Liu Luyin Yang Zanxi Fang Jue He Wenqiang Wang Pan You |
author_sort | Qing Hu |
collection | DOAJ |
description | Abstract Background Nicotinamide N-methyltransferase (NNMT) has been implicated in the pathogenesis of neuropsychiatric diseases. Bipolar disorder (BD) is associated with metabolic abnormalities and NNMT regulates energy metabolism and may also exert a causal role in metabolic disorders. The present study aimed to determine serum NNMT levels in patients with BD and compared the results with that of healthy controls, to explore the correlation between NNMT and clinical and metabolic characteristics. Methods The NNMT levels of 80 patients having a manic episode of BD and 65 non-psychiatric control individuals were measured using enzyme-linked immunosorbent assay. Metabolic parameters were evaluated using standard laboratory methods. Results The serum NNMT levels of bipolar mania patients were significantly lower than that of non-psychiatric controls. Furthermore, the serum levels of NNMT were found to be negatively correlated with Young Mania Rating Scale (YMRS) scores and the duration of the illness. Moreover, lower NNMT serum levels were found in patients with a history of antipsychotic medication and dyslipidemia. Our results also demonstrated the different patterns of correlation that exist between the study groups. Serum NNMT levels were found to be negatively correlated with triglyceride, cholesterol, and apolipoprotein B levels in the BD group, while the same was found to be negatively associated only with high-density lipoprotein cholesterol in the control group. Conclusions These findings support the suggestion that lower NNMT serum levels are significantly associated with BD and that serum NNMT has the potential to regulate lipid metabolism in BD patients. |
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institution | Directory Open Access Journal |
issn | 1471-244X |
language | English |
last_indexed | 2024-12-22T19:16:10Z |
publishDate | 2020-01-01 |
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series | BMC Psychiatry |
spelling | doaj.art-084fcbcca35240fc97937a10c20b3a7c2022-12-21T18:15:30ZengBMCBMC Psychiatry1471-244X2020-01-012011710.1186/s12888-020-2461-4Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional studyQing Hu0Farong Liu1Luyin Yang2Zanxi Fang3Jue He4Wenqiang Wang5Pan You6Xiamen Xianyue HospitalXiamen Xianyue HospitalArts College of Xiamen UniversityZhongshan Hospital, School of Medicine, Xiamen UniversityXiamen Xianyue HospitalXiamen Xianyue HospitalXiamen Xianyue HospitalAbstract Background Nicotinamide N-methyltransferase (NNMT) has been implicated in the pathogenesis of neuropsychiatric diseases. Bipolar disorder (BD) is associated with metabolic abnormalities and NNMT regulates energy metabolism and may also exert a causal role in metabolic disorders. The present study aimed to determine serum NNMT levels in patients with BD and compared the results with that of healthy controls, to explore the correlation between NNMT and clinical and metabolic characteristics. Methods The NNMT levels of 80 patients having a manic episode of BD and 65 non-psychiatric control individuals were measured using enzyme-linked immunosorbent assay. Metabolic parameters were evaluated using standard laboratory methods. Results The serum NNMT levels of bipolar mania patients were significantly lower than that of non-psychiatric controls. Furthermore, the serum levels of NNMT were found to be negatively correlated with Young Mania Rating Scale (YMRS) scores and the duration of the illness. Moreover, lower NNMT serum levels were found in patients with a history of antipsychotic medication and dyslipidemia. Our results also demonstrated the different patterns of correlation that exist between the study groups. Serum NNMT levels were found to be negatively correlated with triglyceride, cholesterol, and apolipoprotein B levels in the BD group, while the same was found to be negatively associated only with high-density lipoprotein cholesterol in the control group. Conclusions These findings support the suggestion that lower NNMT serum levels are significantly associated with BD and that serum NNMT has the potential to regulate lipid metabolism in BD patients.https://doi.org/10.1186/s12888-020-2461-4Nicotinamide-N-methyltransferaseBipolar maniaEnzyme-linked immunosorbent assayLipid metabolismSerum level |
spellingShingle | Qing Hu Farong Liu Luyin Yang Zanxi Fang Jue He Wenqiang Wang Pan You Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study BMC Psychiatry Nicotinamide-N-methyltransferase Bipolar mania Enzyme-linked immunosorbent assay Lipid metabolism Serum level |
title | Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study |
title_full | Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study |
title_fullStr | Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study |
title_full_unstemmed | Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study |
title_short | Lower serum nicotinamide N-methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls: a cross-sectional study |
title_sort | lower serum nicotinamide n methyltransferase levels in patients with bipolar disorder during acute episodes compared to healthy controls a cross sectional study |
topic | Nicotinamide-N-methyltransferase Bipolar mania Enzyme-linked immunosorbent assay Lipid metabolism Serum level |
url | https://doi.org/10.1186/s12888-020-2461-4 |
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