Jiu Ai Tu(The Moxa Treatment)from the Song dynasty is the earliest surviving painting that focuses on the subject of acupuncture and moxibustion.This paper takes the medical activities depicted in the artwork as its r...Jiu Ai Tu(The Moxa Treatment)from the Song dynasty is the earliest surviving painting that focuses on the subject of acupuncture and moxibustion.This paper takes the medical activities depicted in the artwork as its research object and systematically analyzes the external treatment methods for abscesses during the Song dynasty reflected in Jiu Ai Tu.By examining the understanding of abscesses during that period,the paper explores the level of development in external medicine techniques.By analyzing the medical awareness and behaviors of patients when facing such severe illnesses,it aims to explore the societal cognition and experiences regarding health and disease.The paper attempts to present the folk medical ecology of the Song dynasty represented by Jiu Ai Tu.展开更多
Objective:To determine the active components of Eupolyphaga sinensis Walker(Tu Bie Chong)and explore the mechanisms underlying its fracture-healing ability.Methods: A modified Einhorn method was used to develop a rat ...Objective:To determine the active components of Eupolyphaga sinensis Walker(Tu Bie Chong)and explore the mechanisms underlying its fracture-healing ability.Methods: A modified Einhorn method was used to develop a rat tibial fracture model.Progression of bone healing was assessed using radiological methods.Safranin O/fast green and CD31 immunohistochemical staining were performed to evaluate the growth of bone cells and angiogenesis at the fracture site.Methylthiazoletetrazolium blue and wound healing assays were used to analyze cell viability and migration.The Transwell assay was used to explore the invasion capacity of the cells.Tubule formation assays were used to assess the angiogenesis capacity of human vascular endothelial cells(HUVECs).qRT-PCR was used to evaluate the changes in gene transcription levels.Results: Tu Bie Chong fraction 3(TF3)significantly shortened the fracture healing time in model rats.X-ray results showed that on day 14,fracture healing in the TF3 treatment group was significantly better than that in the control group(P=.0086).Tissue staining showed that cartilage growth and the number of H-shaped blood vessels at the fracture site of the TF3 treatment group were better than those of the control group.In vitro,TF3 significantly promoted the proliferation and wound healing of MC3T3-E1s and HUVECs(all P<.01).Transwell assays showed that TF3 promoted the migration of HUVECs,but inhibited the migration of MC3T3-E1 cells.Tubule formation experiments confirmed that TF3 markedly promoted the ability of vascular endothelial cells to form microtubules.Gene expression analysis revealed that TF3 significantly promoted the expression of VEGFA,SPOCD1,NGF,and NGFR in HUVECs.In MC3T3-E1 cells,the transcript levels of RUNX2 and COL2A1 were significantly elevated following TF3 treatment.Conclusion: TF3 promotes fracture healing by promoting bone regeneration associated with the RUNX2 pathway and angiogenesis associated with the VEGFA pathway.展开更多
This study pharmacokinetically examined the lovastatin sustained-release tablet and sustained-release capsule in Beagle dogs. An reversed-phase HPLC method was established for the determination of lovastatin in Beagl...This study pharmacokinetically examined the lovastatin sustained-release tablet and sustained-release capsule in Beagle dogs. An reversed-phase HPLC method was established for the determination of lovastatin in Beagle dog plasma. Pharmacokinetic findings were compared among three preparation(lovastatin sustained-release tablet,T p; sustained-release capsule,T J and conventional capsule). Our results showed that the pharmacokinetic parameters in 6 dogs after single-dose oral administration of three perparations were calculated. T max, C max and MRT revealed significant difference (P<0.05). Relative bioavailability was 111.5±16.9 % (T P) and 110.4%±9.6 % (T J). The pharmacokinetic parameters in the 6 dogs after multiple-dose oral administration of three perparations, T max, C max MRT and DF had significant difference (P<0.05); C av , C min and AUC 0-24 h displayed no significant difference (P>0.05). It is concluded that the lovastatin sustained-release tablet and sustained-release capsule are able to maintain a sustained-release for 24 h.展开更多
AIM： To investigate the interactions at a metabolic level between Iovastatin, amiodarone and carbon tetrachloride in isolated rat hepatocytes.METHODS： For cell isolation two-step collagenase liver perfusion was perf...AIM： To investigate the interactions at a metabolic level between Iovastatin, amiodarone and carbon tetrachloride in isolated rat hepatocytes.METHODS： For cell isolation two-step collagenase liver perfusion was performed. Lovastatin was administered alone in increasing concentrations （1μmol/L, 3μmol/L, 5μmol/L and 10μmol/L） and in combination with CCh （86μmol/L）. The cells were also pretreated with 14μmol/L amiodarone and then the other two compounds were added. RESULTS： Lovastatin promoted concentration-dependent significant toxicity estimated by decrease in cell viability and GSH level by 45% and 840, respectively, LDH- activity increased by 114% and TBARS content by 90%, CCl4 induced the expected severe damage on the examined parameters, CCh induced toxicity was attenuated after Iovastatin pretreatment, which was expressed in less increased values of LDH activity and TBARS levels, as well as in less decreased cell viability and GSH concentrations, However, the pretreatment of hepatocytes with amiodarone abolished the protective effect of Iovastatin. CONCLUSION： We suggest that the observed cytoprotective effect was due to interactions between Iovastatin, CCh and amiodarone at a metabolic level.展开更多
The aim of present study was to formulate and evaluate a self-microemulsifying drug delivery systems(SMEDDS)containing lovastatin and to further explore the ability of porous Neusilin■ US2 tablet as a solid carrier f...The aim of present study was to formulate and evaluate a self-microemulsifying drug delivery systems(SMEDDS)containing lovastatin and to further explore the ability of porous Neusilin■ US2 tablet as a solid carrier for SMEDDS.SMEDDS formulations of varying proportions of peceol,cremophor RH 40 and transcutol-P were selected and subjected to invitro evaluation,including dispersibility studies,droplet size,zeta potential measurement and release studies.The results indicated that the drug release profile of lovastatin from SMEDDS formulations was statistically significantly higher(p-value<0.05)than the plain lovastatin powder.Thermodynamic stability studies also confirmed the stability of the prepared SMEDDS formulations.The optimized formulation,which consists of 12% of peceol,44% of cremophor RH 40,and 44% of transcutol-P was loaded into directly compressed liquid loadable tablet of Neusilin■ US2 by simple adsorption method.In order to determine the ability of Neusilin®US2 as a suitable carrier pharmacodynamics study were also carried out in healthy diet induced hyperlipidemic rabbits.Animals were administered with both liquid SMEDDS and solid SMEDDS as well.From the results obtained,Neusilin■ was found to be a suitable carrier for SMEDDS and was equally effective in reducing the elevated lipid profile.In conclusion,liquid loadable tablet(LLT)is predicted to be a promising technique to deliver a liquid formulation in solid state.展开更多
Two sets of CCD photometric observations for contact binary TU Boo were obtained in 2020 and 2021.Different from its asymmetric light curves published from the literature,our BVRcIc-band curves show that the heights o...Two sets of CCD photometric observations for contact binary TU Boo were obtained in 2020 and 2021.Different from its asymmetric light curves published from the literature,our BVRcIc-band curves show that the heights of maximum are almost equal.These distortions of light curves possibly indicate that the components were active in past 25 yr,but they were stable in the last two years.For total-eclipse binary TU Boo,due to some star-spots on the surface of the components,the physical structure obtained by many investigators are different.Therefore,the symmetric multi-color light curves in 2020,2021 are important for understanding configuration and evolution of this system.By using the Wilson–Devinney program,it is confirmed that TU Boo is an A-type shallow-contact binary with the temperature difference ofΔT=152 K and fill-out of f=14.67%.In the O−C diagram of orbital period analysis,a cyclic oscillation superimposed on a continuous decrease was determined.The long-term decreasing is often explained by the mass transfer from the more massive star to less massive one,this system will evolve into a deeper contact binary with time.The cyclic oscillations computed from much more CCD times of light minimum maybe result from the light-travel time effect via the presence of a third body.These characters of structure,evolution and ternary belong to typical A-type W UMa binaries with spectral G.展开更多
【目的】探讨老年中重度烧伤患者切痂植皮术中使用右美托咪定(Dex)联合咪达唑仑的麻醉效果。【方法】102例老年中重度烧伤患者,随机分为观察组和对照组,每组51例。对照组采用丙泊酚维持麻醉,观察组采用Dex联合咪达唑仑维持麻醉。比较两...【目的】探讨老年中重度烧伤患者切痂植皮术中使用右美托咪定(Dex)联合咪达唑仑的麻醉效果。【方法】102例老年中重度烧伤患者,随机分为观察组和对照组,每组51例。对照组采用丙泊酚维持麻醉,观察组采用Dex联合咪达唑仑维持麻醉。比较两组术中及术后不同时间点的心率(HR)、平均动脉压(MAP)水平;比较两组患者手术情况及手术前后血浆皮质醇(COR)、肾上腺素(E)、去甲肾上腺素(NE)水平;比较两组患者术后疼痛[视觉模拟评分法(VAS)]、镇静效果(Ramsay镇静评分)、躁动发生率及不良反应发生情况。【结果】观察组手术结束时、拔管前及拔管后30 min HR均低于对照组(P<0.05),MAP均高于对照组(P<0.05)。术后30 min时,观察组血浆COR、E、NE水平均低于对照组(P<0.05)。观察组VAS评分低于对照组(P<0.05),Ramsay镇静评分高于对照组(P<0.05),躁动发生率低于对照组(P<0.05)。观察组的苏醒时间短于对照组(P<0.05),两组不良反应总发生率比较,差异无统计学意义(P>0.05)。【结论】Dex联合咪达唑仑应用在老年中重度烧伤患者切痂植皮术中,能有效减轻患者术后应激反应,稳定血流动力学,缩短苏醒时间,减少术后疼痛,降低躁动发生率,且安全性较好。展开更多
基金financed from the grant of the National Social Science Foundation General Project(No.23BZS010)。
文摘Jiu Ai Tu(The Moxa Treatment)from the Song dynasty is the earliest surviving painting that focuses on the subject of acupuncture and moxibustion.This paper takes the medical activities depicted in the artwork as its research object and systematically analyzes the external treatment methods for abscesses during the Song dynasty reflected in Jiu Ai Tu.By examining the understanding of abscesses during that period,the paper explores the level of development in external medicine techniques.By analyzing the medical awareness and behaviors of patients when facing such severe illnesses,it aims to explore the societal cognition and experiences regarding health and disease.The paper attempts to present the folk medical ecology of the Song dynasty represented by Jiu Ai Tu.
基金supported by“the Fundamental Research Funds for the Central Universities”(2020-JYB-ZDGG-054)“Beijing university of Chinese medicine XINAO Award Fund”(2019)Beijing University of Chinese Medicine Scientific Research and Development Fund(2170072220002).
文摘Objective:To determine the active components of Eupolyphaga sinensis Walker(Tu Bie Chong)and explore the mechanisms underlying its fracture-healing ability.Methods: A modified Einhorn method was used to develop a rat tibial fracture model.Progression of bone healing was assessed using radiological methods.Safranin O/fast green and CD31 immunohistochemical staining were performed to evaluate the growth of bone cells and angiogenesis at the fracture site.Methylthiazoletetrazolium blue and wound healing assays were used to analyze cell viability and migration.The Transwell assay was used to explore the invasion capacity of the cells.Tubule formation assays were used to assess the angiogenesis capacity of human vascular endothelial cells(HUVECs).qRT-PCR was used to evaluate the changes in gene transcription levels.Results: Tu Bie Chong fraction 3(TF3)significantly shortened the fracture healing time in model rats.X-ray results showed that on day 14,fracture healing in the TF3 treatment group was significantly better than that in the control group(P=.0086).Tissue staining showed that cartilage growth and the number of H-shaped blood vessels at the fracture site of the TF3 treatment group were better than those of the control group.In vitro,TF3 significantly promoted the proliferation and wound healing of MC3T3-E1s and HUVECs(all P<.01).Transwell assays showed that TF3 promoted the migration of HUVECs,but inhibited the migration of MC3T3-E1 cells.Tubule formation experiments confirmed that TF3 markedly promoted the ability of vascular endothelial cells to form microtubules.Gene expression analysis revealed that TF3 significantly promoted the expression of VEGFA,SPOCD1,NGF,and NGFR in HUVECs.In MC3T3-E1 cells,the transcript levels of RUNX2 and COL2A1 were significantly elevated following TF3 treatment.Conclusion: TF3 promotes fracture healing by promoting bone regeneration associated with the RUNX2 pathway and angiogenesis associated with the VEGFA pathway.
文摘This study pharmacokinetically examined the lovastatin sustained-release tablet and sustained-release capsule in Beagle dogs. An reversed-phase HPLC method was established for the determination of lovastatin in Beagle dog plasma. Pharmacokinetic findings were compared among three preparation(lovastatin sustained-release tablet,T p; sustained-release capsule,T J and conventional capsule). Our results showed that the pharmacokinetic parameters in 6 dogs after single-dose oral administration of three perparations were calculated. T max, C max and MRT revealed significant difference (P<0.05). Relative bioavailability was 111.5±16.9 % (T P) and 110.4%±9.6 % (T J). The pharmacokinetic parameters in the 6 dogs after multiple-dose oral administration of three perparations, T max, C max MRT and DF had significant difference (P<0.05); C av , C min and AUC 0-24 h displayed no significant difference (P>0.05). It is concluded that the lovastatin sustained-release tablet and sustained-release capsule are able to maintain a sustained-release for 24 h.
文摘AIM： To investigate the interactions at a metabolic level between Iovastatin, amiodarone and carbon tetrachloride in isolated rat hepatocytes.METHODS： For cell isolation two-step collagenase liver perfusion was performed. Lovastatin was administered alone in increasing concentrations （1μmol/L, 3μmol/L, 5μmol/L and 10μmol/L） and in combination with CCh （86μmol/L）. The cells were also pretreated with 14μmol/L amiodarone and then the other two compounds were added. RESULTS： Lovastatin promoted concentration-dependent significant toxicity estimated by decrease in cell viability and GSH level by 45% and 840, respectively, LDH- activity increased by 114% and TBARS content by 90%, CCl4 induced the expected severe damage on the examined parameters, CCh induced toxicity was attenuated after Iovastatin pretreatment, which was expressed in less increased values of LDH activity and TBARS levels, as well as in less decreased cell viability and GSH concentrations, However, the pretreatment of hepatocytes with amiodarone abolished the protective effect of Iovastatin. CONCLUSION： We suggest that the observed cytoprotective effect was due to interactions between Iovastatin, CCh and amiodarone at a metabolic level.
基金International Medical University(IMU),Malaysia for financially supporting the present work under the research grant number BPharm B0108_Res322011.
文摘The aim of present study was to formulate and evaluate a self-microemulsifying drug delivery systems(SMEDDS)containing lovastatin and to further explore the ability of porous Neusilin■ US2 tablet as a solid carrier for SMEDDS.SMEDDS formulations of varying proportions of peceol,cremophor RH 40 and transcutol-P were selected and subjected to invitro evaluation,including dispersibility studies,droplet size,zeta potential measurement and release studies.The results indicated that the drug release profile of lovastatin from SMEDDS formulations was statistically significantly higher(p-value<0.05)than the plain lovastatin powder.Thermodynamic stability studies also confirmed the stability of the prepared SMEDDS formulations.The optimized formulation,which consists of 12% of peceol,44% of cremophor RH 40,and 44% of transcutol-P was loaded into directly compressed liquid loadable tablet of Neusilin■ US2 by simple adsorption method.In order to determine the ability of Neusilin®US2 as a suitable carrier pharmacodynamics study were also carried out in healthy diet induced hyperlipidemic rabbits.Animals were administered with both liquid SMEDDS and solid SMEDDS as well.From the results obtained,Neusilin■ was found to be a suitable carrier for SMEDDS and was equally effective in reducing the elevated lipid profile.In conclusion,liquid loadable tablet(LLT)is predicted to be a promising technique to deliver a liquid formulation in solid state.
基金sponsored by Natural Science Foundation of Xinjiang Uygur Autonomous Region (No.2022DO1A164)the Joint Research Found (No.U1831109)in Astronomy under cooperative agreement between the National Natural Science Foundation of China (NSFC)and Chinese Academy of Sciences (CAS)the Natural Science Foundation of Shandong Province (No.ZR2020QA048)。
文摘Two sets of CCD photometric observations for contact binary TU Boo were obtained in 2020 and 2021.Different from its asymmetric light curves published from the literature,our BVRcIc-band curves show that the heights of maximum are almost equal.These distortions of light curves possibly indicate that the components were active in past 25 yr,but they were stable in the last two years.For total-eclipse binary TU Boo,due to some star-spots on the surface of the components,the physical structure obtained by many investigators are different.Therefore,the symmetric multi-color light curves in 2020,2021 are important for understanding configuration and evolution of this system.By using the Wilson–Devinney program,it is confirmed that TU Boo is an A-type shallow-contact binary with the temperature difference ofΔT=152 K and fill-out of f=14.67%.In the O−C diagram of orbital period analysis,a cyclic oscillation superimposed on a continuous decrease was determined.The long-term decreasing is often explained by the mass transfer from the more massive star to less massive one,this system will evolve into a deeper contact binary with time.The cyclic oscillations computed from much more CCD times of light minimum maybe result from the light-travel time effect via the presence of a third body.These characters of structure,evolution and ternary belong to typical A-type W UMa binaries with spectral G.
文摘【目的】探讨老年中重度烧伤患者切痂植皮术中使用右美托咪定(Dex)联合咪达唑仑的麻醉效果。【方法】102例老年中重度烧伤患者,随机分为观察组和对照组,每组51例。对照组采用丙泊酚维持麻醉,观察组采用Dex联合咪达唑仑维持麻醉。比较两组术中及术后不同时间点的心率(HR)、平均动脉压(MAP)水平;比较两组患者手术情况及手术前后血浆皮质醇(COR)、肾上腺素(E)、去甲肾上腺素(NE)水平;比较两组患者术后疼痛[视觉模拟评分法(VAS)]、镇静效果(Ramsay镇静评分)、躁动发生率及不良反应发生情况。【结果】观察组手术结束时、拔管前及拔管后30 min HR均低于对照组(P<0.05),MAP均高于对照组(P<0.05)。术后30 min时,观察组血浆COR、E、NE水平均低于对照组(P<0.05)。观察组VAS评分低于对照组(P<0.05),Ramsay镇静评分高于对照组(P<0.05),躁动发生率低于对照组(P<0.05)。观察组的苏醒时间短于对照组(P<0.05),两组不良反应总发生率比较,差异无统计学意义(P>0.05)。【结论】Dex联合咪达唑仑应用在老年中重度烧伤患者切痂植皮术中,能有效减轻患者术后应激反应,稳定血流动力学,缩短苏醒时间,减少术后疼痛,降低躁动发生率,且安全性较好。
