目的观察祝氏降糖对药方对社区慢性阻塞性肺疾病(COPD)合并糖尿病患者血糖水平及呼吸功能影响。方法研究纳入社区收治的114例慢性阻塞性肺疾病合并糖尿病患者(2022年3月—2023年2月收治)作为本次研究对象,以随机数字表法将患者分为观察...目的观察祝氏降糖对药方对社区慢性阻塞性肺疾病(COPD)合并糖尿病患者血糖水平及呼吸功能影响。方法研究纳入社区收治的114例慢性阻塞性肺疾病合并糖尿病患者(2022年3月—2023年2月收治)作为本次研究对象,以随机数字表法将患者分为观察组与对照组,各组57例,对照组患者给予社区常规疗法,观察组患者在社区常规疗法治疗基础上给予患者祝氏降糖对药方治疗,各组数据观察:治疗前后患者空腹血糖(FPG)及餐后2h血糖(2 h PG)、糖化血红蛋白(HbA1c)指标变化,用力肺活量(FVC)及一秒用力呼气容积(FEV_(1))、FEV_(1)/FVC等呼吸功能指标、6 min步行距离变化及慢性阻塞性肺疾病评估测试(CAT)评分变化、改良英国医学研究委员会呼吸困难指数(mMRC)变化、患者治疗前后生活质量(SF-36)评分变化、治疗满意率。结果治疗前,各组患者FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分比较,P>0.05,治疗后各组患者FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分等指标均改善,观察组患者治疗后FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分等指标优于对照组,P<0.05;观察组患者治疗满意率(98.25%)均高于对照组患者(85.96%),P<0.05。结论祝氏降糖对药方有助于稳定COPD合并糖尿病患者病情,患者血糖水平降低,呼吸功能改善,生活质量提升,患者较为认可与满意,值得应用。展开更多
Aim To evaluate liposome as an injectable delivery system of proteins, insulin was chosen as model drug and the hypoglycemic effect of PEG-coated liposomal insulin was tested.Methods The PEG-coated liposomal insulin w...Aim To evaluate liposome as an injectable delivery system of proteins, insulin was chosen as model drug and the hypoglycemic effect of PEG-coated liposomal insulin was tested.Methods The PEG-coated liposomal insulin was prepared by reversal-phase emulsion evaporation.For pharmacodynamic study, insulin (2.5 IU*kg-1) was intravenously administered in phosphated-buffered saline (PBS) solution, conventional liposomes, and PEG-coated liposomes, separately, to normal Wistar rats.Blood glucose levels were determined by the glucose oxidase method.Results The mean diameter of the PEG-coated liposomal insulin was 58.4 nm, while the encapsulation ratio reached 18.33%.After intravenous administration of insulin solution, insulin liposome, and PEG-coated liposomal insulin, the minimum blood glucose concentrations (Cmin %) reached 25.26±5.75%, 33.92±12.42%, and 42.39±10.5% of the initial level, respectively, and the time periods to reach the minimum blood glucose level (Tmin) were 0.7±0.3 h, 1.2±0.4 h, and 2.3±0.7 h, respectively.The relative pharmacological bioavailabilities of insulin liposome and PEG-coated liposomal insulin were 98.03% and 99.70%, respectively, compared with the control of insulin solution.Conclusion PEG-coated liposome can be developed as a relatively sustained injectable delivery system for insulin.Moreover, the liposome coated with PEG may have advantages over normal liposome.展开更多
A rotundine-polyion complex(PIC)release system was prepared first by granulation of rotundine containing chitosan acetate solution and then by complexing with carboxymethyl glucomannan(CMGM)solution on the granular su...A rotundine-polyion complex(PIC)release system was prepared first by granulation of rotundine containing chitosan acetate solution and then by complexing with carboxymethyl glucomannan(CMGM)solution on the granular surface.The granules have an average diameter of 1.38-1.53 mm and the drug content reaches 62.89％.The external release tests showed T_(50) to be 45 rain and the total release time 4 h in an artificial gastric juice,while no more than 60％ of the drug was released in the same period of time in an ar- tificial intestinal fluid.The various factors affecting the external release were examined.展开更多
The polysaccharides in yam bulbils were extracted, and their antioxidant activity and hypoglycemic effect in diabetic mice were discussed. The results showed that the antioxidant activity of polysaccharides in yam bul...The polysaccharides in yam bulbils were extracted, and their antioxidant activity and hypoglycemic effect in diabetic mice were discussed. The results showed that the antioxidant activity of polysaccharides in yam bulbils was signifi- cantly enhanced with the increase of concentration; they showed a strong scaveng- ing ability against DPPH. and .OH, and the scavenging ability was dose dependent to some extent; the scavenging rates reached 91.15% and 89.06% respectively when the dose reached 4.0 mg/ml; the polysaccharides in yam bulbils significantly educed the blood glucose in model rice, and the hypoglycemic effect of large-dose polysaccharides was more obvious. The polysaccharides in yam bulbils has good antioxidant activity and hypoglycemic effect, which provides a new source for devel- opment of safe and natural food antioxidants and blood sugar-lowering agents.展开更多
Cetyl-chitosan, prepared by reacting chitosan with chlorocetane under alkaline condition, is soluble and spontaneously forms nanoparticles about 100 nm in diameter. Infrared spectra (IR) revealed that there was a subs...Cetyl-chitosan, prepared by reacting chitosan with chlorocetane under alkaline condition, is soluble and spontaneously forms nanoparticles about 100 nm in diameter. Infrared spectra (IR) revealed that there was a substitution reaction mainly on the amine groups of chitosan (CS). By using paracetamol (PCTM) as a model drug, the balanced release concentration of PCTM in phosphate buffer solution (pH=7.4) can be decreased with the increase of degree of substitution alkyl and can be reduced effectively even under a lower PCTM loading.展开更多
文摘目的观察祝氏降糖对药方对社区慢性阻塞性肺疾病(COPD)合并糖尿病患者血糖水平及呼吸功能影响。方法研究纳入社区收治的114例慢性阻塞性肺疾病合并糖尿病患者(2022年3月—2023年2月收治)作为本次研究对象,以随机数字表法将患者分为观察组与对照组,各组57例,对照组患者给予社区常规疗法,观察组患者在社区常规疗法治疗基础上给予患者祝氏降糖对药方治疗,各组数据观察:治疗前后患者空腹血糖(FPG)及餐后2h血糖(2 h PG)、糖化血红蛋白(HbA1c)指标变化,用力肺活量(FVC)及一秒用力呼气容积(FEV_(1))、FEV_(1)/FVC等呼吸功能指标、6 min步行距离变化及慢性阻塞性肺疾病评估测试(CAT)评分变化、改良英国医学研究委员会呼吸困难指数(mMRC)变化、患者治疗前后生活质量(SF-36)评分变化、治疗满意率。结果治疗前,各组患者FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分比较,P>0.05,治疗后各组患者FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分等指标均改善,观察组患者治疗后FPG、2 h PG、HbA1c、FVC、FEV_(1)、FEV_(1)/FVC、6 min步行距离、CAT及mMRC评分、SF-36评分等指标优于对照组,P<0.05;观察组患者治疗满意率(98.25%)均高于对照组患者(85.96%),P<0.05。结论祝氏降糖对药方有助于稳定COPD合并糖尿病患者病情,患者血糖水平降低,呼吸功能改善,生活质量提升,患者较为认可与满意,值得应用。
文摘Aim To evaluate liposome as an injectable delivery system of proteins, insulin was chosen as model drug and the hypoglycemic effect of PEG-coated liposomal insulin was tested.Methods The PEG-coated liposomal insulin was prepared by reversal-phase emulsion evaporation.For pharmacodynamic study, insulin (2.5 IU*kg-1) was intravenously administered in phosphated-buffered saline (PBS) solution, conventional liposomes, and PEG-coated liposomes, separately, to normal Wistar rats.Blood glucose levels were determined by the glucose oxidase method.Results The mean diameter of the PEG-coated liposomal insulin was 58.4 nm, while the encapsulation ratio reached 18.33%.After intravenous administration of insulin solution, insulin liposome, and PEG-coated liposomal insulin, the minimum blood glucose concentrations (Cmin %) reached 25.26±5.75%, 33.92±12.42%, and 42.39±10.5% of the initial level, respectively, and the time periods to reach the minimum blood glucose level (Tmin) were 0.7±0.3 h, 1.2±0.4 h, and 2.3±0.7 h, respectively.The relative pharmacological bioavailabilities of insulin liposome and PEG-coated liposomal insulin were 98.03% and 99.70%, respectively, compared with the control of insulin solution.Conclusion PEG-coated liposome can be developed as a relatively sustained injectable delivery system for insulin.Moreover, the liposome coated with PEG may have advantages over normal liposome.
基金This project was supported by National Natural Science Foundation of China
文摘A rotundine-polyion complex(PIC)release system was prepared first by granulation of rotundine containing chitosan acetate solution and then by complexing with carboxymethyl glucomannan(CMGM)solution on the granular surface.The granules have an average diameter of 1.38-1.53 mm and the drug content reaches 62.89％.The external release tests showed T_(50) to be 45 rain and the total release time 4 h in an artificial gastric juice,while no more than 60％ of the drug was released in the same period of time in an ar- tificial intestinal fluid.The various factors affecting the external release were examined.
基金Supported by Key Project of Huainan Normal College(2011LK76zd)Youth Fund of Huainan Normal College(2010LK13)~~
文摘The polysaccharides in yam bulbils were extracted, and their antioxidant activity and hypoglycemic effect in diabetic mice were discussed. The results showed that the antioxidant activity of polysaccharides in yam bulbils was signifi- cantly enhanced with the increase of concentration; they showed a strong scaveng- ing ability against DPPH. and .OH, and the scavenging ability was dose dependent to some extent; the scavenging rates reached 91.15% and 89.06% respectively when the dose reached 4.0 mg/ml; the polysaccharides in yam bulbils significantly educed the blood glucose in model rice, and the hypoglycemic effect of large-dose polysaccharides was more obvious. The polysaccharides in yam bulbils has good antioxidant activity and hypoglycemic effect, which provides a new source for devel- opment of safe and natural food antioxidants and blood sugar-lowering agents.
文摘Cetyl-chitosan, prepared by reacting chitosan with chlorocetane under alkaline condition, is soluble and spontaneously forms nanoparticles about 100 nm in diameter. Infrared spectra (IR) revealed that there was a substitution reaction mainly on the amine groups of chitosan (CS). By using paracetamol (PCTM) as a model drug, the balanced release concentration of PCTM in phosphate buffer solution (pH=7.4) can be decreased with the increase of degree of substitution alkyl and can be reduced effectively even under a lower PCTM loading.
