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Clinical significance of methyl-CpG binding protein 2 in postherpetic neuralgia: an observational study / Importancia clínica de la proteína 2 de unión a metil-CpG (MECP2) en la neuralgia posherpética: un estudio observacional
Wang, Zhijian; Shen, Wei; Zhu, Mengye; Xu, Mu; Qiu, Mizhen; Zhang, Daying; Chen, Shibiao.
  • Wang, Zhijian; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Shen, Wei; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Zhu, Mengye; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Xu, Mu; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Qiu, Mizhen; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Zhang, Daying; the First Affiliated Hospital of Nanchang University. Department of Pain. Nanchang. CN
  • Chen, Shibiao; the First Affiliated Hospital of Nanchang University. Department of Anesthesiology. Nanchang. CN
Invest. clín ; 63(1): 81-91, mar. 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1534644
ABSTRACT
Abstract 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.
RESUMEN
Resumen El objetivo de este estudio fue investigar la importancia clínica de la MECP2 en pacientes con neuralgia posherpética (NPH). Este estudio observacional prospectivo incluyó 319 pacientes con NPH entre abril de 2017 y diciembre de 2019. La calidad del sueño y la calidad de vida de los pacientes se evaluaron con la escala de calidad del sueño de Pittsburgh y la escala SF - 36, respectivamente. Los niveles séricos de MECP2, PCR, IL -6 y TNF-α fueron determinados por ELISA. Se utilizó la escala visual analógica (EVA) para evaluar la intensidad del dolor. Los niveles de MECP2 en pacientes con NPH aumentaron significativamente en comparación con los pacientes sin NPH. El nivel sérico de MECP2 fue más alto en pacientes con dolor grave y el más bajo en pacientes con dolor leve. Además, la incidencia de dolor grave en pacientes con baja expresión de MECP2 fue significativamente menor que en pacientes con alta expresión de MECP2. Además, los niveles séricos de PCR, IL -6 y TNF-α aumentaron significativamente en pacientes con NPH, y se incrementaron con el aumento del grado de dolor. Los niveles séricos de PCR, IL -6 y TNF-α en pacientes con NPH se correlacionaron positivamente con los niveles séricos de MECP2. Antes del estudio, los pacientes con niveles más bajos de MECP2 tenían puntuaciones significativamente más altas de SF - 36, y puntuaciones más bajas de Pittsburgh y EVA que los pacientes con niveles más altos de MECP2. Sin embargo, no se encontraron diferencias significativas entre los pacientes un mes después. Las curvas ROC mostraron que la MECP2 podría ser un biomarcador de diagnóstico para la NPH. En general, los niveles séricos más altos de la MECP2 se asociaron con condiciones de dolor más graves y un aumento de la liberación de factores inflamatorios.


Full text: Available Index: LILACS (Americas) Language: English Journal: Invest. clín Journal subject: Biologia / Medicine / Relatos de Casos Year: 2022 Type: Article / Project document Affiliation country: China Institution/Affiliation country: the First Affiliated Hospital of Nanchang University/CN

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Full text: Available Index: LILACS (Americas) Language: English Journal: Invest. clín Journal subject: Biologia / Medicine / Relatos de Casos Year: 2022 Type: Article / Project document Affiliation country: China Institution/Affiliation country: the First Affiliated Hospital of Nanchang University/CN