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<p>This study aimed to explore how the long-term use of midazolam (MDZ) influences the biochemistry and structural alterations in the salivary glands of adult rats, along with the function of their saliva.&#xa0;Twenty male Wistar rats were allocated in two groups (<i>n</i> = 10) and received daily intragastric administration of 0.1mg/kg MDZ solubilized in distilled water or only distilled water (control) for 30&#xa0;days. Then, saliva, parotid, and submandibular glands were collected to perform histomorphometry analyses and biochemical assays. The groups were compared by using the Student <i>t</i> test (<i>p</i> &lt; 0.05).&#xa0;MDZ decreased the reduced glutathione levels in the parotid and submandibular glands. In both glands, MDZ caused a reduction in the parenchymal area, an increase in the stromal area, and a reduction of in acinar area and size. In saliva, MDZ reduced trolox equivalent antioxidant capacity levels, and decreased the activity of salivary amylase.&#xa0;As a result of this study, we conclude that MDZ can trigger biochemical and morphological changes in the parotid and submandibular glands, as well as functional impairment and modulation of oxidative biochemistry in total saliva.&#xa0;With this, our pre-clinical study points to changes that could have an impact on biological processes such as tooth decay and food digestion.</p>

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Impact of midazolam on salivary glands: a comprehensive analysis of oxidative biochemistry, morphological changes, and salivary composition

  • 期刊论文

  • 发表日期：

    2025年7月22日

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  • Glenda Luciana Costa Braga,
  • Maria Cláudia Pinheiro Corôa,
  • Maria Karolina Martins Ferreira,
  • Cristian dos Santos Pereira,
  • Deiweson Souza-Monteiro,
  • Leonardo Oliveira Bittencourt,
  • Everton Luiz Pompeu Varela,
  • Alejandro Ferraz do Prado,
  • Sandro Percário,
  • Antônio Hernandes Chaves-Neto,
  • Rafael Rodrigues Lima

摘要

This study aimed to explore how the long-term use of midazolam (MDZ) influences the biochemistry and structural alterations in the salivary glands of adult rats, along with the function of their saliva. Twenty male Wistar rats were allocated in two groups (n = 10) and received daily intragastric administration of 0.1mg/kg MDZ solubilized in distilled water or only distilled water (control) for 30 days. Then, saliva, parotid, and submandibular glands were collected to perform histomorphometry analyses and biochemical assays. The groups were compared by using the Student t test (p < 0.05). MDZ decreased the reduced glutathione levels in the parotid and submandibular glands. In both glands, MDZ caused a reduction in the parenchymal area, an increase in the stromal area, and a reduction of in acinar area and size. In saliva, MDZ reduced trolox equivalent antioxidant capacity levels, and decreased the activity of salivary amylase. As a result of this study, we conclude that MDZ can trigger biochemical and morphological changes in the parotid and submandibular glands, as well as functional impairment and modulation of oxidative biochemistry in total saliva. With this, our pre-clinical study points to changes that could have an impact on biological processes such as tooth decay and food digestion.