When your cells don’t get the sugar they need, your pancreas works harder at first to make more insulin. But after a while, your pancreas stops being able to make enough insulin. High blood sugar can harm many parts of the body. It can damage blood vessels and nerves throughout your ...
___A principal type of white blood cell that has various roles in the immune system, including the identification of specific___in the body and the___激活and___灭活of other immune cells 相关知识点: 试题来源: 解析 T-lymphocyte T-淋巴细胞: foreign antigens外来抗原 activation deactivation...
aBecause they can propagate indefinitely, as well as give rise to every other cell type in the body (such as neurons, heart, pancreatic, and liver cells), they represent a single source of cells that could be used to replace those lost to damage or disease. Depending on the methods used...
The 5-HT sequestered in platelets is synthesized from tryptophan by enterochromaffin cells in the gut wall [23], with negligible contribution from serotonergic neurons of the enteric nervous system [24]. Some of the gut 5-HT diffuses into the systemic blood circulation, where most of it is ra...
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Withexperimentsusinghumancellsshowingsuccessfulresults.Trisolaransmightonedaycometobeareality.(1)WhatcanTrisolaransdointheThree-BodyProblembooks? ___A.Theycanliveinwaterforhundredsofyears.B.Theycanprotectthemselvesfromdehydration.C.Theycanhelpotherdeadthingscomebacktolife.D.Theycandehydratethemselvesandliveinbad...
The scientists first identified several stromal cell subpopulations in the fat tissue of mice, then isolated these subpopulations and studied their cellular behavior. Unexpectedly, they found that one of these subpopulations not only fails to differentiate into fat cells, it also actively suppresses the...
Pancreatic islet cells have unexpected plasticity; however, the magnitude and clinical relevance of this phenomenon in humans remains to be determined. A substantial fraction of T1DM-associated genetic variants act at the β-cell level but only become manifest upon immune-mediated islet cell perturbatio...
Other research has linked type A with greater levels of bad cholesterol, known as LDL (low density lipoprotein). Cholesterol is essential fatthat the cells in the body need to function. Cholesterol can collect in the walls of the blood vesse...
c-kit+ cells adopt vascular endothelial but not epithelial cell fates during lung maintenance and repair. Nat. Med. 21, 866–868 (2015). Article CAS PubMed Google Scholar Niethamer, T. K. et al. Defining the role of pulmonary endothelial cell heterogeneity in the response to acute lung ...