Pien Tze Huang(PZH),a class-1 nationally protected traditional Chinese medicine(TCM),has been used to treat liver diseases such as hepatitis;however,the effect of PZH on the progression of sepsis is unknown.Here,we re...Pien Tze Huang(PZH),a class-1 nationally protected traditional Chinese medicine(TCM),has been used to treat liver diseases such as hepatitis;however,the effect of PZH on the progression of sepsis is unknown.Here,we reported that PZH attenuated lipopolysaccharide(LPS)-induced sepsis in mice and reduced LPS-induced production of proinflammatory cytokines in macrophages by inhibiting the activation of mitogen-activated protein kinase(MAPK)and nuclear factor-kappa B(NF-κB)signalling.Mechanistically,PZH stimulated signal transducer and activator of transcription 3(STAT3)phosphorylation to induce the expression of A20,which could inhibit the activation of NF-κB and MAPK signalling.Knockdown of the bile acid(BA)receptor G protein-coupled bile acid receptor 1(TGR5)in macrophages abolished the effects of PZH on STAT3 phosphorylation and A20 induction,as well as the LPS-induced inflammatory response,suggesting that BAs in PZH may mediate its anti-inflammatory effects by activating TGR5.Consistently,deprivation of BAs in PZH by cholestyramine resin reduced the effects of PZH on the expression of phosphorylated-STAT3 and A20,the activation of NF-κB and MAPK signalling,and the production of proinflammatory cytokines,whereas the addition of BAs to cholestyramine resin-treated PZH partially restored the inhibitory effects on the production of proinflammatory cytokines.Overall,our study identifies BAs as the effective components in PZH that activate TGR5-STAT3-A20 signalling to ameliorate LPS-induced sepsis.展开更多
Aphids are major insect pests in agriculture and forestry worldwide.Following attacks by natural enemies,many aphids release an alarm pheromone to protect their population.In most aphids,the main component of the aphi...Aphids are major insect pests in agriculture and forestry worldwide.Following attacks by natural enemies,many aphids release an alarm pheromone to protect their population.In most aphids,the main component of the aphid alarm pheromone(AAP)is the sesquiterpene hydrocarbon(E)-β-farnesene(EβF).However,the mechanisms behind its biosynthesis and regulation remain poorly understood.In this study,we used the bird cherry–oat aphid Rhopalosiphum padi,which is an important wheat aphid,to investigate the regulatory mechanisms of EβF biosynthesis.Our results showed that EβF biosynthesis occurs during the mature embryo period and the molting period of the 1st-and 2nd-instar nymphs.Triglycerides provide the prerequisite material for EβF production and release.Based on transcriptome sequencing,RNAi analysis,hormone treatments,and quantitative measurements,we found that the biosynthesis of EβF utilizes acetyl coenzyme A produced from fatty acid degradation,which can be suppressed by juvenile hormone but it is promoted by 20-hydroxyecdysone through the modulation of fatty acid metabolism.This is the first systemic study on the modulation of EβF production in aphids.The results of our study provide insights into the molecular regulatory mechanisms of AAP biosynthesis,as well as valuable information for designing potential aphid control strategies.展开更多
目的:探讨不同剂量20%氨基酮戊酸光动力治疗外阴尖锐湿疣患者的疗效。方法:将2013年5月至2015年10月我院收治的76例外阴尖锐湿疣患者随机分为观察组(40例)和对照组(36例),观察组采用0.5m L 20%氨基酮戊酸光动力治疗,对照组采用0.25m L ...目的:探讨不同剂量20%氨基酮戊酸光动力治疗外阴尖锐湿疣患者的疗效。方法:将2013年5月至2015年10月我院收治的76例外阴尖锐湿疣患者随机分为观察组(40例)和对照组(36例),观察组采用0.5m L 20%氨基酮戊酸光动力治疗,对照组采用0.25m L 20%氨基酮戊酸光动力治疗,比较两组临床疗效、疣体清除、治疗后复发及不良反应发生情况。结果:观察组1、2、3次治疗后总有效率分别为75.0%、95.0%及97.5%,明显高于对照组的47.2%、69.4%及77.8%,差异均有统计学意义(P<0.05);观察组治疗1、2、3周疣体清除率分别为76.9%、94.2%及96.2%,明显高于对照组的45.7%、73.9%及82.6%,差异有统计学意义(P<0.05);观察组治疗后12周及24周复发率均为10.0%,明显低于对照组的30.6%、33.3%,差异有统计学意义(P<0.05);观察组不良反应发生率为27.5%,对照组为33.3%,比较差异无统计学意义(P>0.05)。结论:0.5m L 20%氨基酮戊酸光动力较0.25m L20%氨基酮戊酸光动力治疗外阴尖锐湿疣更有助于清除疣体,降低复发,且未增加不良反应,疗效显著,值得在临床上推广应用。展开更多
基金supported by research funds from Zhangzhou Pien Tze Huang Pharmaceutical Co.Ltd(Grant Nos.:437b8f31,d6092dae,YHT-19064 to Chundong Yu)the National Natural Science Foundation of China(Grant Nos.:81970485,82173086 to Chundong Yu)the Natural Science Foundation of Fujian Province(Grant No.:2023J01249 to Shicong Wang).
文摘Pien Tze Huang(PZH),a class-1 nationally protected traditional Chinese medicine(TCM),has been used to treat liver diseases such as hepatitis;however,the effect of PZH on the progression of sepsis is unknown.Here,we reported that PZH attenuated lipopolysaccharide(LPS)-induced sepsis in mice and reduced LPS-induced production of proinflammatory cytokines in macrophages by inhibiting the activation of mitogen-activated protein kinase(MAPK)and nuclear factor-kappa B(NF-κB)signalling.Mechanistically,PZH stimulated signal transducer and activator of transcription 3(STAT3)phosphorylation to induce the expression of A20,which could inhibit the activation of NF-κB and MAPK signalling.Knockdown of the bile acid(BA)receptor G protein-coupled bile acid receptor 1(TGR5)in macrophages abolished the effects of PZH on STAT3 phosphorylation and A20 induction,as well as the LPS-induced inflammatory response,suggesting that BAs in PZH may mediate its anti-inflammatory effects by activating TGR5.Consistently,deprivation of BAs in PZH by cholestyramine resin reduced the effects of PZH on the expression of phosphorylated-STAT3 and A20,the activation of NF-κB and MAPK signalling,and the production of proinflammatory cytokines,whereas the addition of BAs to cholestyramine resin-treated PZH partially restored the inhibitory effects on the production of proinflammatory cytokines.Overall,our study identifies BAs as the effective components in PZH that activate TGR5-STAT3-A20 signalling to ameliorate LPS-induced sepsis.
基金supported by the National Natural Science Foundation of China(31972267 and 3227253)the Chinese Universities Scientific Fund(2023TC109)。
文摘Aphids are major insect pests in agriculture and forestry worldwide.Following attacks by natural enemies,many aphids release an alarm pheromone to protect their population.In most aphids,the main component of the aphid alarm pheromone(AAP)is the sesquiterpene hydrocarbon(E)-β-farnesene(EβF).However,the mechanisms behind its biosynthesis and regulation remain poorly understood.In this study,we used the bird cherry–oat aphid Rhopalosiphum padi,which is an important wheat aphid,to investigate the regulatory mechanisms of EβF biosynthesis.Our results showed that EβF biosynthesis occurs during the mature embryo period and the molting period of the 1st-and 2nd-instar nymphs.Triglycerides provide the prerequisite material for EβF production and release.Based on transcriptome sequencing,RNAi analysis,hormone treatments,and quantitative measurements,we found that the biosynthesis of EβF utilizes acetyl coenzyme A produced from fatty acid degradation,which can be suppressed by juvenile hormone but it is promoted by 20-hydroxyecdysone through the modulation of fatty acid metabolism.This is the first systemic study on the modulation of EβF production in aphids.The results of our study provide insights into the molecular regulatory mechanisms of AAP biosynthesis,as well as valuable information for designing potential aphid control strategies.
文摘目的:探讨不同剂量20%氨基酮戊酸光动力治疗外阴尖锐湿疣患者的疗效。方法:将2013年5月至2015年10月我院收治的76例外阴尖锐湿疣患者随机分为观察组(40例)和对照组(36例),观察组采用0.5m L 20%氨基酮戊酸光动力治疗,对照组采用0.25m L 20%氨基酮戊酸光动力治疗,比较两组临床疗效、疣体清除、治疗后复发及不良反应发生情况。结果:观察组1、2、3次治疗后总有效率分别为75.0%、95.0%及97.5%,明显高于对照组的47.2%、69.4%及77.8%,差异均有统计学意义(P<0.05);观察组治疗1、2、3周疣体清除率分别为76.9%、94.2%及96.2%,明显高于对照组的45.7%、73.9%及82.6%,差异有统计学意义(P<0.05);观察组治疗后12周及24周复发率均为10.0%,明显低于对照组的30.6%、33.3%,差异有统计学意义(P<0.05);观察组不良反应发生率为27.5%,对照组为33.3%,比较差异无统计学意义(P>0.05)。结论:0.5m L 20%氨基酮戊酸光动力较0.25m L20%氨基酮戊酸光动力治疗外阴尖锐湿疣更有助于清除疣体,降低复发,且未增加不良反应,疗效显著,值得在临床上推广应用。
