Clinical significance of methyl-CpG binding protein 2 in postherpetic neuralgia: an observational study

The present study was aimed to investigate the clinical significance of methyl-CpG binding protein 2 (MECP2) in patients with postherpetic neuralgia (PHN). This prospective case control study enrolled 319 cases of PHN patients from April 2017~December 2019. The patients’ sleep quality and quality of...

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Veröffentlicht in:Investigación clínica 2022-03, Vol.63 (1), p.81-91
Hauptverfasser: Wang, Zhijian, Shen, Wei, Zhu, Mengye, Xu, Mu, Qiu, Mizhen, Zhang, Daying, Chen, Shibiao
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container_title Investigación clínica
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creator Wang, Zhijian
Shen, Wei
Zhu, Mengye
Xu, Mu
Qiu, Mizhen
Zhang, Daying
Chen, Shibiao
description The present study was aimed to investigate the clinical significance of methyl-CpG binding protein 2 (MECP2) in patients with postherpetic neuralgia (PHN). This prospective case control study enrolled 319 cases of PHN patients from April 2017~December 2019. The patients’ sleep quality and quality of life were evaluated using the Pittsburgh sleep quality score and the SF-36 scale, respectively. The serum levels of MECP2, CRP, IL-6 and TNF-α were tested using enzyme linked immunosorbent assay (ELISA). The pain condition of the patients was evaluated using the visual analogue scale (VAS). The levels of MECP2 were significantly increased in PHN patients compared with the patients without PHN. Serum MECP2 levels were the highest in patients with severe pain, and were the lowest in patients with mild pain. Similarly, the frequency of severe pain in patients with low expression of MECP2 was significantly lower than the patients with higher MECP2 expression. Besides, serum levels of inflammatory factors CRP, IL-6 and TNF-α were markedly increased in PHN patients, which were also increased with the increase of the severity of pain. CRP, IL-6 and TNF-α were positively correlated with serum levels of MECP2 in PHN patients. Before the study, patients with lower MECP2 levels showed a significantly higher SF-36 score and lower Pittsburgh and VAS scores than patients with higher levels of MECP2. However, after one month, no significant difference was found between the patients. ROC curve showed MECP2 had the potential as a diagnostic biomarker for PHN. In conclusion, higher serum MECP2 levels are associated with a more severe pain condition and increased release of inflammatory factors.
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This prospective case control study enrolled 319 cases of PHN patients from April 2017~December 2019. The patients’ sleep quality and quality of life were evaluated using the Pittsburgh sleep quality score and the SF-36 scale, respectively. The serum levels of MECP2, CRP, IL-6 and TNF-α were tested using enzyme linked immunosorbent assay (ELISA). The pain condition of the patients was evaluated using the visual analogue scale (VAS). The levels of MECP2 were significantly increased in PHN patients compared with the patients without PHN. Serum MECP2 levels were the highest in patients with severe pain, and were the lowest in patients with mild pain. Similarly, the frequency of severe pain in patients with low expression of MECP2 was significantly lower than the patients with higher MECP2 expression. Besides, serum levels of inflammatory factors CRP, IL-6 and TNF-α were markedly increased in PHN patients, which were also increased with the increase of the severity of pain. CRP, IL-6 and TNF-α were positively correlated with serum levels of MECP2 in PHN patients. Before the study, patients with lower MECP2 levels showed a significantly higher SF-36 score and lower Pittsburgh and VAS scores than patients with higher levels of MECP2. However, after one month, no significant difference was found between the patients. ROC curve showed MECP2 had the potential as a diagnostic biomarker for PHN. 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CRP, IL-6 and TNF-α were positively correlated with serum levels of MECP2 in PHN patients. Before the study, patients with lower MECP2 levels showed a significantly higher SF-36 score and lower Pittsburgh and VAS scores than patients with higher levels of MECP2. However, after one month, no significant difference was found between the patients. ROC curve showed MECP2 had the potential as a diagnostic biomarker for PHN. 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