相关实验视频
Updated: May 24, 2025

09:36
Culture and Maintenance of Human Embryonic Stem Cells
Published on: December 22, 2009
47.7K
对撤回的干细胞出版物的时间趋势,特征和引用的系统分析
Fei Song1,2, Binghuo Wu3, Gang Wei4
1Department of Urology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
BMC medicine
|February 28, 2025
概括
收回的干细胞研究继续被引用,对科学完整性构成风险. 引用已撤回研究的论文面临后续撤回的11倍高风险,突出需要更好的监督.
科学领域:
- 干细胞研究的研究.
- 科学完整性 科学完整性
- 出版伦理出版的伦理
背景情况:
- 收回的出版物对干细胞研究的科学完整性提出了挑战.
- 尽管有撤回通知,但仍在引用有缺陷的研究,传播不可靠的研究结果.
- 这项研究系统地分析了撤回的干细胞出版物及其引用影响.
研究的目的:
- 为了表征收回的干细胞出版物.
- 评估撤回对后续引用的影响.
- 评估在引用被撤回作品的论文中后续撤回的风险.
主要方法:
- 根据PRISMA的指导方针,我们对科学网络,Retraction Watch和PubMed进行了全面的搜索.
- 提取的出版物详细信息,撤回理由和引用数量.
- 将撤回论文的引用模式与匹配的非撤回对照进行了比较,并分析了随后撤回的风险.
主要成果:
- 确定了517个收回的干细胞出版物,收回率不断增加,在2023年达到0.84%的峰值.
- 数据和图像缺陷很常见 (69.6%); 77.5%的撤回论文得到了撤回后的引用.
- 引用被撤回文章的论文有11倍的后续撤回风险 (OR: 11.09).
结论:
- 干细胞研究面临着重大的完整性挑战.
- 加强监控和标准化协议对于制错误研究的传播至关重要.
相关概念视频
Stem Cell Therapy for Tissue Regeneration
4.0K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.0K
Source And Potency Of Stem Cells
4.6K
Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...
4.6K
Tissue Renewal without Stem Cells
1.7K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.7K
Mesenchymal Stem Cells
4.6K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.6K
Stem Cell Culture
5.0K
Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
5.0K
Regulation of Hematopoietic Stem Cells
3.1K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.1K

