Objective:As a medicinal plant,the resource of Rhodiola dumulosa is deficient along with the large collection.For the protection and utilization of R.dumulosa,the influence of plant growth regulators(PGRs)on callus in...Objective:As a medicinal plant,the resource of Rhodiola dumulosa is deficient along with the large collection.For the protection and utilization of R.dumulosa,the influence of plant growth regulators(PGRs)on callus induction and adventitious shoots differentiation,polysaccharide production and the antioxidant activity were tested.Methods:Internodes of R.dumulosa were used as explants and cultured on MS medium plus different plant growth regulators(PGRs).The anti-oxidative activities of polysaccharides were evaluated using radical scavenging assays.Results:By response surface plot,0.85 mg/L N6-benzyladenine(BA),0.34 mg/L naphthaleneacetic acid(NAA)and 0.33 mg/L 2,4-dicholorophenoxyacetic acid(2,4-D)were the optimal factors for callus induction(90.03%)from internodes explants on MS medium.The fresh weight of green callus increased 47.26 fold,when callus was inoculated on MS+thidiazuron(TDZ)0.5 mg/L+NAA 2.0 mg/L.Adventitious buds regenerated from callus on the media of MS were fortified with BA 1.0 mg/L plus NAA 0.5 mg/L,and the induction rate was 40.00%.MS plus indole-3-butyric acid(IBA)1.0 mg/L produced the highest rooting rate with 10 to 15 roots in a length of 2–3 cm per shoot.The content of total polysaccharides in callus developed on MS+TDZ 0.5 mg/L+NAA 2.0 mg/L and MS+BA 1.0 mg/L+NAA 0.5 mg/L was as high as 1.72%2.15%.At the dose of 0.5 mg/mL polysaccharides extracted from different callus induced on MS+NAA 2.0 mg/L+TDZ 0.5 mg/L or MS+BA 1.0 mg/L+NAA 0.5 mg/L or MS+BA 0.5 mg/L+2,4-D 0.5 mg/L,the ABTS radical eliminating percentages were 82.78%,80.18%and 68.59%,respectively,much higher than that of wild plant.Conclusion:A rapid micropropagation system for R.dumulosa has been developed.The combination of TDZ and NAA or BA and NAA can increase the yield of the total polysaccharides.The polysaccharides isolated from callus and whole wild plants had stronger free radicals scavenging activities,indicating that polysaccharides from R.dumulosa are the potential pharmaceutical supplements.展开更多
目的探讨综合护理干预对内生场深部热疗配合胸腹腔灌注化疗治疗恶性胸腹水患者生活质量的影响。方法选取2015年11月-2016年5月接受治疗的恶性胸腹水患者92例,采用随机数字表法将其分为对照组和研究组各46例。对照组给予常规护理,研究组...目的探讨综合护理干预对内生场深部热疗配合胸腹腔灌注化疗治疗恶性胸腹水患者生活质量的影响。方法选取2015年11月-2016年5月接受治疗的恶性胸腹水患者92例,采用随机数字表法将其分为对照组和研究组各46例。对照组给予常规护理,研究组在对照组基础上给予综合护理干预。采用焦虑自评量表(self-rating anxiety scale,SAS)和生活质量量表(quality of life questionnaire-core 30,QLQ-C30)评估2组患者的焦虑状态和生活质量。并比较2组患者对护理工作的满意度。结果干预后研究组的SAS评分和QLQ-C30各项评分均低于对照组,护理满意率高于对照组(χ2=5.373,P=0.021)。结论综合护理干预可有效减轻内生场深部热疗配合胸腹腔灌注化疗治疗的恶性胸腹水患者的焦虑情绪,改善患者的生活质量,并可提高患者对护理工作的满意度。展开更多
基金This study was financially supported by the Independent Research Project of Graduate Students(No.BZKY2021035).
文摘Objective:As a medicinal plant,the resource of Rhodiola dumulosa is deficient along with the large collection.For the protection and utilization of R.dumulosa,the influence of plant growth regulators(PGRs)on callus induction and adventitious shoots differentiation,polysaccharide production and the antioxidant activity were tested.Methods:Internodes of R.dumulosa were used as explants and cultured on MS medium plus different plant growth regulators(PGRs).The anti-oxidative activities of polysaccharides were evaluated using radical scavenging assays.Results:By response surface plot,0.85 mg/L N6-benzyladenine(BA),0.34 mg/L naphthaleneacetic acid(NAA)and 0.33 mg/L 2,4-dicholorophenoxyacetic acid(2,4-D)were the optimal factors for callus induction(90.03%)from internodes explants on MS medium.The fresh weight of green callus increased 47.26 fold,when callus was inoculated on MS+thidiazuron(TDZ)0.5 mg/L+NAA 2.0 mg/L.Adventitious buds regenerated from callus on the media of MS were fortified with BA 1.0 mg/L plus NAA 0.5 mg/L,and the induction rate was 40.00%.MS plus indole-3-butyric acid(IBA)1.0 mg/L produced the highest rooting rate with 10 to 15 roots in a length of 2–3 cm per shoot.The content of total polysaccharides in callus developed on MS+TDZ 0.5 mg/L+NAA 2.0 mg/L and MS+BA 1.0 mg/L+NAA 0.5 mg/L was as high as 1.72%2.15%.At the dose of 0.5 mg/mL polysaccharides extracted from different callus induced on MS+NAA 2.0 mg/L+TDZ 0.5 mg/L or MS+BA 1.0 mg/L+NAA 0.5 mg/L or MS+BA 0.5 mg/L+2,4-D 0.5 mg/L,the ABTS radical eliminating percentages were 82.78%,80.18%and 68.59%,respectively,much higher than that of wild plant.Conclusion:A rapid micropropagation system for R.dumulosa has been developed.The combination of TDZ and NAA or BA and NAA can increase the yield of the total polysaccharides.The polysaccharides isolated from callus and whole wild plants had stronger free radicals scavenging activities,indicating that polysaccharides from R.dumulosa are the potential pharmaceutical supplements.
文摘目的探讨综合护理干预对内生场深部热疗配合胸腹腔灌注化疗治疗恶性胸腹水患者生活质量的影响。方法选取2015年11月-2016年5月接受治疗的恶性胸腹水患者92例,采用随机数字表法将其分为对照组和研究组各46例。对照组给予常规护理,研究组在对照组基础上给予综合护理干预。采用焦虑自评量表(self-rating anxiety scale,SAS)和生活质量量表(quality of life questionnaire-core 30,QLQ-C30)评估2组患者的焦虑状态和生活质量。并比较2组患者对护理工作的满意度。结果干预后研究组的SAS评分和QLQ-C30各项评分均低于对照组,护理满意率高于对照组(χ2=5.373,P=0.021)。结论综合护理干预可有效减轻内生场深部热疗配合胸腹腔灌注化疗治疗的恶性胸腹水患者的焦虑情绪,改善患者的生活质量,并可提高患者对护理工作的满意度。
