然而，在哺乳动物物种之间，端粒酶的调控和端粒长度存在显著差异。在人类中，端粒酶的表达局限于少数器官，如睾丸、卵巢和胸腺，许多老化组织中的端粒会逐渐耗尽。但对 60 多种哺乳动物的比较研究发现，包括小鼠在内的许多生物并没有端粒介导的复制性衰老现象。小鼠的端粒酶表达限制较少，大多数组织都能表达较高水平的 Tert mRNA 和端粒酶活性。实验室内的近交系小鼠，如 ...

Kennedy Jr.’s main focuses, if confirmed as President Donald Trump’s Department of Health and Human Services secretary, will ...

College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, People’s Republic of China ...

Calcific aortic valve disease is the pathological remodeling of valve leaflets. The initial steps in valve leaflet osteogenic reprogramming are not fully understood. As TERT (telomerase reverse ...

在一项激动人心的研究中，科学家们提出了一种新的镍催化光反应方法，利用tert-丁胺作为双功能添加剂，这标志着在光化学领域的显著进展。研究团队来自德国雷根斯堡大学、捷克高等技术大学和美国犹他大学，其成果发表于《ACS Catalysis》期刊。

A former production manager at a Navassa chemical processing plant pleaded guilty to knowingly discharging chemical ...

Sustainability Trends: The growing focus on sustainability and eco-friendly products is influencing the demand for antimicrobial coil coatings that are low in volatile organic compounds (VOCs) and ...