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相关概念视频

Lateralization01:28

Lateralization

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Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

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Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
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In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
However, this neutralization reaction between...
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Primary Active Transport01:47

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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
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Peptic ulcers, often induced by H. pylori infections or NSAID usage, arise from disruptions in the delicate balance of gastric acid production. Peptic ulcers stem from heightened gastric acid levels due to H. pylori infections or NSAID use. The protective mucus layer diminishes in the presence of these factors, allowing gastric acid to erode the stomach lining and form ulcers.
Gastric acid, a potent cocktail of hydrogen and chloride ions, is produced in specialized parietal cells within the...
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相关实验视频

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A Vibrotactile Feedback Device for Seated Balance Assessment and Training
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坐着的盐水抑制试验用于侧面化初级阿尔多斯特罗尼主义.

Alexander A Leung1,2, Raj S Padwal3, Gregory L Hundemer4

  • 1Division of Endocrinology and Metabolism, Department of Medicine (A.A.L., E.V., D.J.T.C., D.M.R., G.A.K.), University of Calgary, Alberta, Canada.

Hypertension (Dallas, Tex. : 1979)
|January 26, 2026
PubMed
概括

针对原发性阿尔多斯特隆症 (PA) 的坐姿盐水抑制试验 (SSST) 在识别横向的PA时显示出有限的准确性,可能误导治疗决策.

关键词:
上腺静脉采样这是一个双边的双边关系.诊断测试的准确性 诊断测试的准确性横向化 (lateralization) 是一种侧向化.横向化的横向化 横向化的横向化主要的阿尔多斯顿主义.盐水输液试验试验 盐水输液试验盐水抑制试验 盐水抑制试验灵敏度 灵敏度 灵敏度 灵敏度 灵敏度特殊性的特异性这是一个单边的行为.

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科学领域:

  • 内分泌学 在内分泌学.
  • 腎臟病學 (nephrology) 是一種醫學專業.
  • 临床试验 临床试验

背景情况:

  • 确认原发性阿尔多斯特隆症 (PA) 的测试具有不确定的诊断价值.
  • 高风险的PA患者需要可靠的方法来确认侧面化.

研究的目的:

  • 评估坐着的盐水抑制试验 (SSST) 的诊断准确性,以识别横向的PA.
  • 将SSST性能与上腺静脉采样 (AVS) 作为黄金标准进行比较.

主要方法:

  • 一个盲目的临床试验,涉及160名高风险PA患者,接受SSST和AVS.
  • 由AVS阿尔多素/皮质醇比率≥3:1定义的侧面化.
  • 主要结果:SSST的诊断准确性使用各种阿尔多切断值.

主要成果:

  • SSST的整体诊断准确度在64.4%至67.5%之间,取决于阿尔多的切断值.
  • 积极的SSST结果是模两可的或极少的信息 (概率比1.1-1.9).
  • 负的SSST结果适度地反对横向化 (概率比为0.3-0.5).

结论:

  • 包括SSST在内的阿尔多抑制测试对于预测AVS结果是不可靠的.
  • 在PA管理中,SSST可能导致错误的诊断和治疗决策.