Objective
To investigate the regulative characterisitics of growth factors on proliferation of retinal pigment epithelial (RPE) cells in vitro.
Methods
Primary culture and subculture of RPE cells were establised in vitro Tumor.necrosis factor-alpha;(TNF-alpha;),interleukin-1beta;(IL-1beta;) and basic fibroblast growth factor (bFGF) in different concentrations were added to the RPE cells.3 H-thymidine(3 H-TdR) incorporation and a hemocytometer measured DNA synthesis and cell number separately.
Results
After RPE cells were separately treated with TNF-alpha;,IL-1beta; and bFGF,DNA synthesis was increased by 2.74,2.66 and 1.69 folds and cell number was increased by 54%,22% and 7amp; (Plt;0.05) respectively. When two growth factors were combined (TNF-alpha;+bFGF, IL-1beta;+bFGF),3.14,2.84 and 2.57 folds increased DNA synthesis significantly in each group (Plt;0.05). Compared with value by effect of two growth factors,the combination effect of three growth factors (TNF-alpha;+IL-1beta;+bFGF) was still ber (Plt;0.05).
Conclusion
The synergism of growth factors in their action might be one of the important roles in modulating the proliferation of RPE cells.
(Chin J Ocul Fundus Dis,1998,14:95-97)
Epilepsy is one of the most common neurological diseases, and symptomatic epilepsy patients are the main group of epilepsy patients, and their etiologies mainly include structural, infectious, metabolic and autoimmune, and the seizures caused by each etiology may have different degrees of impact on the quality of life of patients. The purpose of this article is to review the research on the quality of life of patients with symptomatic epilepsy caused by structural and infectious etiologies, including cerebrovascular diseases, neurodegenerative diseases, brain tumors, traumatic brain injuries and neurocysticercosis, in order to help clinicians understand the quality of life of patients with symptomatic epilepsy and benefit patients in clinical practice.
