AIM： To analyze the concentration-dependent effects of autologous serum （AS） and fetal bovine serum （FBS） on human corneal epithelial cell （HCEC） viability, migration and proliferation. METHODS： AS was prepar...AIM： To analyze the concentration-dependent effects of autologous serum （AS） and fetal bovine serum （FBS） on human corneal epithelial cell （HCEC） viability, migration and proliferation. METHODS： AS was prepared from 13 patients with non- healing epithelial defects Dulbecco＇s modified eagle medium/ Ham＇s F12 （DMEM/F12） with 5% FBS, 0.5% dimethyl sulphoxide （DMSO）, 10 ng/mL human epidermal growth factor, 1% insulin-transferrin-selenium, then were incubated in serum media： DMEM/F12 supplemented by 5%, 10%, 15% or 30% AS or FBS. HCEC viability was analyzed using cell proliferation kit XTI＇, migration using a wound healing assay, proliferation by the cell proliferation enzyme-linked immunosorbent assay （ELISA） BrdU kit. Statistical analysis was performed using the generalized linear model, the values at 30% AS or 30% FBS were used as the baselines. RESULTS： HCEC viability was the highest at 30% AS or 15% FBS and the lowest at 10% AS or 30% FBS application. HCEC migration was the quickest through 30% AS or 30% FBS and the slowest through 5% AS or 5% FBS concentrations. Proliferation was the most increased through 15% AS or 5% FBS and the least increased through 30% AS or 30% FBS concentrations. HCEC viability at 10% and 15% AS was significantly worse （P=0.001, P=0.023） compared to baseline and significantly better at 15% FBS （P=0.003） concentrations. HCEC migration was significantly worse （P〈0.007） and HCEC proliferation significantly better （P〈0.001） in all concentration groups compared to baseline. CONCLUSION： For the best viability of HCEC 30% AS or 15% FBS, for HCEC migration 30% AS or 30% FBS, for proliferation 15% AS or 5% FBS should be used. Therefore, we suggest the use of 30% AS in clinical practice.展开更多
研究了纳米银对南美白对虾苗的毒性、弧菌的杀灭能力和抑制效果,以及可能导致养殖水体和养殖对虾中的银累积。结果表明,纳米银对南美白对虾苗的96 h半致死浓度(LC50)为推荐使用浓度(0.5 mL/m^(3))的2241.54倍(1120.77 mL/m^(3)),48 h LC...研究了纳米银对南美白对虾苗的毒性、弧菌的杀灭能力和抑制效果,以及可能导致养殖水体和养殖对虾中的银累积。结果表明,纳米银对南美白对虾苗的96 h半致死浓度(LC50)为推荐使用浓度(0.5 mL/m^(3))的2241.54倍(1120.77 mL/m^(3)),48 h LC50-为推荐使用浓度的5421.70倍(2780.15 mL/m^(3))。相应的安全浓度(SC)(按0.05的应用系数)分别为96 h SC 56.04 mL/m^(3)和48 h SC 135.54 mL/m^(3)。指出,纳米银能够明显杀灭和抑制养殖水体和对虾身体的弧菌,是一种高效的疾病预防药物,但会造成养殖水体银浓度增加,并在对虾体内有一定量的累积。展开更多
文摘AIM： To analyze the concentration-dependent effects of autologous serum （AS） and fetal bovine serum （FBS） on human corneal epithelial cell （HCEC） viability, migration and proliferation. METHODS： AS was prepared from 13 patients with non- healing epithelial defects Dulbecco＇s modified eagle medium/ Ham＇s F12 （DMEM/F12） with 5% FBS, 0.5% dimethyl sulphoxide （DMSO）, 10 ng/mL human epidermal growth factor, 1% insulin-transferrin-selenium, then were incubated in serum media： DMEM/F12 supplemented by 5%, 10%, 15% or 30% AS or FBS. HCEC viability was analyzed using cell proliferation kit XTI＇, migration using a wound healing assay, proliferation by the cell proliferation enzyme-linked immunosorbent assay （ELISA） BrdU kit. Statistical analysis was performed using the generalized linear model, the values at 30% AS or 30% FBS were used as the baselines. RESULTS： HCEC viability was the highest at 30% AS or 15% FBS and the lowest at 10% AS or 30% FBS application. HCEC migration was the quickest through 30% AS or 30% FBS and the slowest through 5% AS or 5% FBS concentrations. Proliferation was the most increased through 15% AS or 5% FBS and the least increased through 30% AS or 30% FBS concentrations. HCEC viability at 10% and 15% AS was significantly worse （P=0.001, P=0.023） compared to baseline and significantly better at 15% FBS （P=0.003） concentrations. HCEC migration was significantly worse （P〈0.007） and HCEC proliferation significantly better （P〈0.001） in all concentration groups compared to baseline. CONCLUSION： For the best viability of HCEC 30% AS or 15% FBS, for HCEC migration 30% AS or 30% FBS, for proliferation 15% AS or 5% FBS should be used. Therefore, we suggest the use of 30% AS in clinical practice.
文摘研究了纳米银对南美白对虾苗的毒性、弧菌的杀灭能力和抑制效果,以及可能导致养殖水体和养殖对虾中的银累积。结果表明,纳米银对南美白对虾苗的96 h半致死浓度(LC50)为推荐使用浓度(0.5 mL/m^(3))的2241.54倍(1120.77 mL/m^(3)),48 h LC50-为推荐使用浓度的5421.70倍(2780.15 mL/m^(3))。相应的安全浓度(SC)(按0.05的应用系数)分别为96 h SC 56.04 mL/m^(3)和48 h SC 135.54 mL/m^(3)。指出,纳米银能够明显杀灭和抑制养殖水体和对虾身体的弧菌,是一种高效的疾病预防药物,但会造成养殖水体银浓度增加,并在对虾体内有一定量的累积。
