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Outline
Liver fibrosis is a key pathological process in the transition from chronic liver disease to cirrhosis，especially in elderly patients with chronic hepatitis B，and this process is characterized by rapid progression and poor prognosis. T cell function gradually declines with aging，and T cell senescence is recognized as a key immunological mechanism accelerating the progression of liver fibrosis. Current studies have shown that senescent T cells promote the transition from liver fibrosis to liver cirrhosis by altering the liver inflammatory microenvironment，modulating the activity of fibrosis-related cells，and impairing immune surveillance function. This article systematically reviews the molecular mechanisms of T cell senescence and its role in the progression of liver fibrosis in elderly patients with chronic hepatitis B，as well as novel therapeutic approaches targeting immunosenescence with reference to the latest immunological findings and stem cell-based therapeutic strategies，so as to provide theoretical support for precise intervention for such patients.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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