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首页> 外文期刊>Journal of chemical neuroanatomy >Increases in PKC gamma expression in trigeminal spinal nucleus is associated with orofacial thermal hyperalgesia in streptozotocin-induced diabetic mice
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Increases in PKC gamma expression in trigeminal spinal nucleus is associated with orofacial thermal hyperalgesia in streptozotocin-induced diabetic mice

机译:三叉神经脊核中PKCγ表达的增加与链脲佐菌素诱导的糖尿病小鼠的口面部热痛觉过敏有关

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摘要

Painful diabetic polyneuropathy (PDN) at the early phrase of diabetes frequently exhibits increased responsiveness to nociception. In diabetic patients and animal models, alterations in the transmission of orofacial sensory information have been demonstrated in trigeminal system. Herein, we examined the changes of protein kinase C gamma subunit (PKC gamma) in trigeminal spinal nucleus (Sp5C) and observed the development of orofacial thermal sensitivity in streptozotocin (STZ)-induced type 1 diabetic mice. With hyperglycemia and body weight loss, STZ mice exhibited orofacial thermal hyperalgesia, along with increased PKC gamma expression in Sp5C. Insulin treatment at the early stage of diabetes could alleviate the orofacial thermal hyperalgesia and impaired increased PKC gamma in Sp5C in diabetic mice. In summary, our results demonstrate that PKC gamma might be involved in orofacial thermal hyperalgesia of diabetes, and early insulin treatment might be effective way to treat orofacial PDN. (C) 2014 Elsevier B.V. All rights reserved.
机译:糖尿病早期阶段的痛苦性糖尿病多发性神经病(PDN)经常表现出对伤害感受的增强反应性。在糖尿病患者和动物模型中,已在三叉神经系统中证明了口腔感官信息传递的变化。在本文中,我们检查了三叉神经脊髓核(Sp5C)中蛋白激酶Cγ亚基(PKCγ)的变化,并观察了链脲佐菌素(STZ)诱导的1型糖尿病小鼠口面热敏感性的发展。由于高血糖和体重减轻,STZ小鼠表现出口腔热痛觉过敏,以及Sp5C中PKCγ表达增加。糖尿病初期的胰岛素治疗可以减轻糖尿病小鼠的口腔热痛觉过敏,并削弱Sp5C中PKCγ升高。总而言之,我们的结果表明PKCγ可能参与了糖尿病的口腔热痛觉过敏,并且早期胰岛素治疗可能是治疗口腔FDN的有效方法。 (C)2014 Elsevier B.V.保留所有权利。

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