Antidepressant Efficacy of Antiglutamatergic Agent
抗谷氨酸药的抗抑郁功效
基本信息
- 批准号:6824387
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:
- 资助国家:美国
- 起止时间:至
- 项目状态:未结题
- 来源:
- 关键词:NMDA receptors antidepressants clinical trials data collection methodology /evaluation drug screening /evaluation glutamates human subject inhibitor /antagonist major depression mental disorder chemotherapy neural inhibition neural transmission neuroimaging neuropharmacologic agent neuropsychology neuroregulation patient oriented research pharmacogenetics positron emission tomography receptor sensitivity
项目摘要
Major affective disorders are common, severe, chronic and often life-threatening illnesses. Major depression contributes to significant morbidity and mortality. Impairment in physical and social functioning resulting from depression can be just as severe as other chronic medical illnesses. Suicide is the cause of death in 10-20% of individuals with either bipolar or recurrent depressive disorders.
Despite the availability of a wide range of antidepressant drugs, clinical trials indicate that 30% to 40% of patients with major depression fail to respond to first-line antidepressant treatment, despite adequate dosage, duration, and compliance. Thus, there is a clear need to develop novel and improved therapeutics for unipolar and bipolar depression. Recent preclinical studies suggest that antidepressants may exert delayed indirect effects on the glutamatergic system. Furthermore, a growing body of data suggests that mood disorders are associated with regional volumetric reductions, and cell loss and atrophy. It is thus noteworthy that lamotrigine, which, among other effects reduces glutamate release, has antidepressant effects, and a pilot study has suggested that NMDA antagonists may have antidepressant effects. Together, this data suggests that the glutamatergic system may play a role in the pathophysiology and treatment of depression, and that agents, which more directly reduce glutamatergic neurotransmission, may represent a novel class of antidepressants.
In an open-label study, we tested riluzole, an agent that is Food and Drug Administration-approved for Amyotrophic Lateral Sclerosis that has significant antiglutamatergic and neuroprotective properties in patients with treatment-resistant major depression and found that it had significant antidepressant properties.
Our research now extends to test NMDA antagonists in major depression in a placebo-controlled trial. We are obtaining neuroimaging, neuropsychological, neurophysiological, and genetic data.
严重的情感障碍是常见的、严重的、慢性的、往往危及生命的疾病。严重的抑郁症会导致严重的发病率和死亡率。抑郁症导致的身体和社会功能损害可能与其他慢性疾病一样严重。自杀是双相情感障碍或复发性抑郁障碍患者中10-20%的死亡原因。
尽管有广泛的抗抑郁药物可用,临床试验表明,尽管有足够的剂量、持续时间和依从性,30%到40%的重度抑郁症患者对一线抗抑郁药物治疗没有反应。因此,显然有必要开发新的和改进的治疗单相和双相抑郁的疗法。最近的临床前研究表明,抗抑郁药可能对谷氨酸能系统产生延迟的间接影响。此外,越来越多的数据表明,情绪障碍与局部体积缩小、细胞丢失和萎缩有关。因此,值得注意的是,在减少谷氨酸释放的其他作用中,拉莫三嗪具有抗抑郁作用,一项初步研究表明,NMDA拮抗剂可能具有抗抑郁作用。综上所述,这些数据表明,谷氨酸能系统可能在抑郁症的病理生理和治疗中发挥作用,而更直接减少谷氨酸能神经传递的药物可能代表了一类新的抗抑郁药物。
在一项开放标签的研究中,我们测试了利鲁唑,这是一种经食品和药物管理局批准用于肌萎缩侧索硬化症的药物,对难治性重度抑郁症患者具有显著的抗谷氨酸能和神经保护特性,并发现它具有显著的抗抑郁特性。
我们的研究现在扩展到在安慰剂对照试验中测试NMDA拮抗剂在重度抑郁症中的作用。我们正在获得神经成像、神经心理学、神经生理学和遗传学数据。
项目成果
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HUSSEINI K MANJI其他文献
HUSSEINI K MANJI的其他文献
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{{ truncateString('HUSSEINI K MANJI', 18)}}的其他基金
LITHIUM RESPONSIVE BIPOLAR DISORDER AND CNS MYO INOSITOL
锂反应性双相情感障碍和中枢神经系统肌醇
- 批准号:
2908653 - 财政年份:1999
- 资助金额:
-- - 项目类别:
PKC SIGNALING AND THE TREATMENT OF BIPOLAR DISORDER
PKC 信号传导和双相情感障碍的治疗
- 批准号:
2702902 - 财政年份:1998
- 资助金额:
-- - 项目类别:
PKC SIGNALING AND THE TREATMENT OF BIPOLAR DISORDER
PKC 信号传导和双相情感障碍的治疗
- 批准号:
2891036 - 财政年份:1998
- 资助金额:
-- - 项目类别:
Microarray Studies -- Long Term Treatment for Bipolar
微阵列研究——双相情感障碍的长期治疗
- 批准号:
6824378 - 财政年份:
- 资助金额:
-- - 项目类别:
Neuronal-Glial Interaction in the Treatment of Bipolar
双相情感障碍治疗中的神经元-胶质细胞相互作用
- 批准号:
6824400 - 财政年份:
- 资助金额:
-- - 项目类别:
Glucocorticoid Receptors (GR) in Mitochondria: The Role
糖皮质激素受体 (GR) 在线粒体中的作用
- 批准号:
7312914 - 财政年份:
- 资助金额:
-- - 项目类别:
Roles of kainate receptors in behavioral plasticity rela
红藻氨酸受体在行为可塑性关系中的作用
- 批准号:
7312942 - 财政年份:
- 资助金额:
-- - 项目类别:
The Protein Kinase C Inhibitor Tamoxifen in Acute Mania
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- 批准号:
6982748 - 财政年份:
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