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相关概念视频

Gene Therapy00:59

Gene Therapy

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Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
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Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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相关实验视频

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Generation of Murine Cardiac Pacemaker Cell Aggregates Based on ES-Cell-Programming in Combination with Myh6-Promoter-Selection
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通过基因转移产生的生物节拍器.

Junichiro Miake1, Eduardo Marbán, H Bradley Nuss

  • 1Institute of Molecular Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Nature
|September 13, 2002
PubMed
概括

研究人员使用病毒基因转移,从现有的心肌细胞中创建新的节拍器细胞. 这产生了节律性的电活动,为治疗心脏病的电子起器提供了潜在的替代方案.

科学领域:

  • 心血管生物学 心血管生物学
  • 基因治疗 基因治疗
  • 再生医学是一种再生医学.

背景情况:

  • 心脏起器细胞启动和调节心律.
  • 疾病对这些细胞的损伤可能导致循环系统崩.
  • 目前的治疗包括植入式电子起器.

研究的目的:

  • 为了研究病毒基因转移产生功能起器细胞的潜力.
  • 探索用于治疗心律障碍的电子起器的替代方案.

主要方法:

  • 利用病毒基因转移来修改静止的心肌细胞.
  • 在体内评估产生的电池的电活动.

主要成果:

  • 成功地将心肌细胞转化为功能性起器细胞.
  • 在体内证明了心室内自发的节奏电活动的产生.

结论:

  • 基因工程节拍器代表着对电子设备的有希望的替代品.
  • 这种方法可以为心律管理提供一种新的治疗策略.

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