Gender differences in peripheral cannabinoid mediated analgesia

外周大麻素介导的镇痛的性别差异

基本信息

  • 批准号:
    8460770
  • 负责人:
  • 金额:
    $ 4.37万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2010
  • 资助国家:
    美国
  • 起止时间:
    2010-09-01 至 2013-04-30
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): Orofacial muscle pain is much more prevalent and severe in women compared to men. Sex differences also play an important role in individuals' responses to treatment. However, with etiology, pathophysiology and sex-related mechanisms not fully understood, current treatments for orofacial muscle pain conditions are largely inadequate. Peripheral uses of cannabinoids have emerged as attractive alternatives or adjuncts to treatment with opioids, due to the centrally related side effects associated with opioids treatments. Peripheral administration of cannabinoids produces sex-dependent analgesic responses under inflammatory conditions and is likely due to the differential CB1 expression in trigeminal ganglia (TG). Inflammatory cytokines have been shown to modulate both opioid and cannabinoid receptor expression. This study proposes to investigate whether inflammatory cytokines induce greater up-regulation of CB1 in TG in males than females, and whether estradiol is involved in the sex differences in the induction of CB1 by cytokines. Real-time RT-PCR and western blot experiments will test (1) whether inflammatory cytokines induce a greater up-regulation of CB1 expression in males than females by applying cytokines in TG primary cultures and (2) whether inflammatory cytokines induce a greater up-regulation of CB1 expression in males than females by directly injecting cytokines into the masseter muscle in intact animals. This study will lead to better understanding of the mechanisms underlying sex differences in the regulation of CB1 expression under inflammatory conditions and sex differences in peripheral cannabinoid receptor-mediated analgesia. PUBLIC HEALTH RELEVANCE: Orofacial muscle pain related to temporomandibular disorders affects approximately 10-12% of the population, with a higher prevalence in women than in men. With etiology, pathophysiology and sex-related mechanisms not fully understood, current treatments for these pain conditions are still inadequate. In accordance with the missions of the NIDCR and the FOA: PA-10-107 this study proposes to investigate whether inflammatory cytokines induce sex-dependent CB1 expression in TG and whether estradiol modulates this induction. Understanding the mechanisms underlying sex differences in peripheral cannabinoid-mediated analgesia will enable the development of sex-based and mechanism-based therapeutic interventions for the treatment of inflammatory orofacial muscle pain. This proposal will serve as a platform on which I can develop into a clinician/scientist.
描述(由申请人提供):与男性相比,女性的口面部肌肉疼痛更为普遍和严重。性别差异在个体对治疗的反应中也起着重要作用。然而,由于病因学、病理生理学和性相关机制尚未完全了解,目前对口面部肌肉疼痛状况的治疗在很大程度上是不够的。由于与阿片类药物治疗相关的中枢相关副作用,大麻素的外周使用已成为阿片类药物治疗的有吸引力的替代品或替代品。大麻素的外周给药在炎症条件下产生性别依赖性镇痛反应,这可能是由于三叉神经节(TG)中的差异CB 1表达。已显示炎性细胞因子调节阿片样物质和大麻素受体表达。本研究旨在探讨炎症性细胞因子是否能诱导男性TG中CB 1的上调,以及雌二醇是否参与了细胞因子诱导CB 1的性别差异。实时RT-PCR和蛋白质印迹实验将测试(1)通过在TG原代培养物中应用细胞因子,炎性细胞因子是否在雄性中诱导比雌性更大的CB 1表达上调,以及(2)通过将细胞因子直接注射到完整动物的咬肌中,炎性细胞因子是否在雄性中诱导比雌性更大的CB 1表达上调。这项研究将导致更好地了解性别差异的机制,在炎症条件下的CB 1表达的调节和外周大麻素受体介导的镇痛的性别差异。 公共卫生相关性:与颞下颌关节紊乱病相关的口面部肌肉疼痛影响约10-12%的人群,女性的患病率高于男性。由于病因学、病理生理学和性相关机制尚未完全了解,目前对这些疼痛状况的治疗仍然不足。根据NIDCR和FOA的任务:PA-10-107,本研究建议研究炎症细胞因子是否诱导TG中性别依赖性CB 1表达以及雌二醇是否调节这种诱导。了解外周大麻素介导的镇痛的性别差异的机制将使基于性别和机制的治疗干预措施的发展,用于治疗炎性口面部肌肉疼痛。这个建议将作为一个平台,我可以发展成为一个临床医生/科学家。

项目成果

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Katelyn Yueyi Niu其他文献

Katelyn Yueyi Niu的其他文献

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{{ truncateString('Katelyn Yueyi Niu', 18)}}的其他基金

Gender differences in peripheral cannabinoid mediated analgesia
外周大麻素介导的镇痛的性别差异
  • 批准号:
    8060787
  • 财政年份:
    2010
  • 资助金额:
    $ 4.37万
  • 项目类别:
Gender differences in peripheral cannabinoid mediated analgesia
外周大麻素介导的镇痛的性别差异
  • 批准号:
    8150394
  • 财政年份:
    2010
  • 资助金额:
    $ 4.37万
  • 项目类别:

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