Mechanism of blood pressure lowering by fatty acid nutraceuticals
脂肪酸保健品降血压的机制
基本信息
- 批准号:9918934
- 负责人:
- 金额:$ 56.35万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-06-01 至 2023-04-30
- 项目状态:已结题
- 来源:
- 关键词:AffinityAmino AcidsAnimalsAntihypertensive AgentsBindingBiochemicalBiophysicsBlood PressureBlood Pressure MonitorsCalciumCarbonCellsChemicalsClinicalClupeidaeComplexDevelopmentDietDocosahexaenoic AcidsEicosapentaenoic AcidElectrophysiology (science)Energy TransferFatty AcidsFish OilsFishesFoodFoundationsFree EnergyHeadHealthHealth PromotionHumanHydrogen BondingInterferometryIon ChannelIon Channel ProteinIonsKnock-in MouseLengthLocationMeasuresMediatingMethodsModelingMolecularMolecular ConformationMolecular TargetMotionMusMutagenesisMyographyNatureNutraceuticalOmega-3 Fatty AcidsOutcomeOutcomes ResearchPatientsPharmacologic SubstancePhysiologicalPositioning AttributePotassiumProteinsPublic HealthPumpRandomizedResearchRoleRotationSalmonScombridaeSideSmooth Muscle MyocytesSolidStructureTailTelemetryTestingTyrosineVascular Smooth MuscleVoltage-Gated Potassium Channelarctic environmentawakebaseblood pressure reductionblood pressure regulationcarboxylatecontrol trialdesignexperimental studyin vivolarge-conductance calcium-activated potassium channelspi bondprogramsresponsevoltage
项目摘要
Project Summary
Long-‐‑chain polyunsaturated omega-‐‑3 fatty acids, such as docosahexaenoic acid (DHA) with a 22-‐‑carbon
chain, are found abundantly in oily fish including anchovy, herring, mackerel, and salmon. These omega-‐‑3
fatty acids are widely thought to have multiple health-‐‑promoting effects. Evidence suggests that DHA
decreases blood pressure, especially in hypertensive patients. We hypothesize that the hypotensive action
of DHA is mediated by its stimulatory effect on large-‐‑conductance calcium and voltage-‐‑gated potassium
(Slo1 BK) channels important in blood pressure regulation. The research program proposed here will
provide molecular and atomic basis of the hypotensive action of DHA involving Slo1 BK channels using
biophysical, biochemical, and whole-‐‑animal methods. We postulate that a hydrogen bond between a
tyrosine residue in the S6 segment of the channel and the carboxylate group is critical in destabilizing the
closed conformation of the ion conduction gate and this interaction underlies the whole-‐‑animal
hypertensive action. Using the physicochemical principles elucidated, we will rationally design, synthesize
and test fatty-‐‑acid activators of Slo1 BK channels. The anticipated outcome of the research program has
potential to explain blood pressure regulation of whole animals based on the hydrogen bonds formed
between specific tyrosine residues of the Slo1 BK channel and DHA and provide a solid mechanistic
foundation for discovery and development of pharmaceuticals and nutraceuticals for blood pressure
management.
项目总结:
长链多不饱和欧米茄-3种脂肪酸,如二十二碳六烯酸(DHA)和α-22-碳。
链,在含油的鱼类中也发现了丰富的营养,包括凤尾鱼、鲱鱼、鲱鱼、鱼和三文鱼。这些欧米茄-3。
人们普遍认为脂肪酸对健康有多方面的影响-促进健康。有证据表明,维生素DHA对健康有多种影响。
降低血压,特别是对高血压患者。我们假设这是一种有效的降压作用。
DHA的产生是通过其对大-钙离子电导和电压--门控钙离子的刺激效应来调节的。
(SLO1和BK)这些渠道在血压和监管中起着重要作用。根据这里提出的全球研究计划,我们将继续努力。
提供了DHA的主要降压作用机制的分子基础和原子基础,涉及Slo1和BK两个通道正在使用。
生物物理学、生物化学和整体-动物实验方法。我们可以假设,在动物和动物之间存在氢键。
酪氨酸残基存在于第二通道的第一个S6节段中,而第二个羧酸基团在破坏世界稳定的过程中起着至关重要的作用。
封闭的离子传导门的构象,以及这种相互作用的基础是整个-动物。
高血压的作用。在阐明了最新的物理化学原理后,我们将合理地设计、合成和使用。
并测试Slo1和BK两个渠道的脂肪酸类激活剂。这项研究计划已经达到了预期的结果。
根据已形成的氢键,可能有可能解释整个动物的血压和调节机制。
在Slo1和BK两个通道的特定酪氨酸残留量和DHA之间的残留量之间,为我们提供了一个非常坚实的机械性解决方案。
基金会致力于发现和开发治疗高血压的药物和保健食品。
管理层。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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TOSHINORI HOSHI其他文献
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{{ truncateString('TOSHINORI HOSHI', 18)}}的其他基金
Mechanism of blood pressure lowering by fatty acid nutraceuticals
脂肪酸保健品降血压的机制
- 批准号:
9212439 - 财政年份:2017
- 资助金额:
$ 56.35万 - 项目类别:
Life-span extension /methionine sulfoxide reductase
延长寿命/蛋氨酸亚砜还原酶
- 批准号:
6611894 - 财政年份:2002
- 资助金额:
$ 56.35万 - 项目类别:
REGULATION OF ION CHANNELS BY APOPTOSIS TRIGGER PROTEINS
细胞凋亡触发蛋白对离子通道的调节
- 批准号:
6390144 - 财政年份:1999
- 资助金额:
$ 56.35万 - 项目类别:
REGULATION OF ION CHANNELS BY APOPTOSIS TRIGGER PROTEINS
细胞凋亡触发蛋白对离子通道的调节
- 批准号:
6652406 - 财政年份:1999
- 资助金额:
$ 56.35万 - 项目类别:
REGULATION OF ION CHANNELS BY APOPTOSIS TRIGGER PROTEINS
细胞凋亡触发蛋白对离子通道的调节
- 批准号:
6185025 - 财政年份:1999
- 资助金额:
$ 56.35万 - 项目类别:
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