双语新闻:人工培育肌肉组织研究获重大进展

2014-04-25 15:30:59来源：可可英语

　　Another challenge to using regenerated muscle for therapeutic purposes is the size of the tissue that can be regenerated, experts say. For instance, the mouse calf muscle generated by the team currently is about 20 millimeters long and 4 to 5 millimeters wide, a fraction of the human calf muscle.

　　专家说，使用再生肌肉用于治疗目的另一重挑战在于能够再生的组织的大小。比如团队目前培育的老鼠腓肠肌约为20毫米长，4到5毫米宽，只占人类腓肠肌的很小一部分。

　　Because muscle tissue is very dense, it's difficult to get enough oxygen and blood flow to the muscle on the inside of the tissue, Dr. Bursac says. He and other researchers, such as those at Washington University in St. Louis, are trying to create channels in muscle tissue that can deliver the nutrients the muscle needs.

　　布尔萨奇说，因为肌肉组织非常紧密，很难让足量的氧和血液流到组织内部的肌肉上去。他和其他研究人员(比如华盛顿大学路易斯分校(Washington University in St. Louis)的研究人员)正在想办法在肌肉组织中开辟出能够输送肌肉所需营养物质的通道。

　　If they solve this issue, doctors would be able to grow denser and stronger lab-generated muscle tissue. Resolving the issue of how to vascularize muscle tissue will open doors for the treatment potential of regenerated muscle tissue, Dr. Bursac says.

　　如果他们解决了这个问题，医生将能够培育出更加紧密、更有力量的实验室肌肉组织。布尔萨奇说，解决了怎样给肌肉组织建造血管的问题，就会为再生肌肉组织的治疗潜能开闸。

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