Transjugular intrahepatic portosystemic shun(TIPS)is an effective procedure for the treatment of portal hypertension complications such as esophagogastric variceal bleeding and refractory ascites.To date,its use by ma...Transjugular intrahepatic portosystemic shun(TIPS)is an effective procedure for the treatment of portal hypertension complications such as esophagogastric variceal bleeding and refractory ascites.To date,its use by many experts and scholars at home and abroad has benefitted countless patients.In order to further promote the development and innovation of TIPS in China,this paper briefly reviews the development process of TIPS at home and abroad,objectively analyzes the bottlenecks and breakthrough achievements in the development of TIPS,and discusses the application status and research progress of TIPS technology for different indications.Finally,we provide an outlook about the development and application of TIPS in China.展开更多
Background:Warm acupuncture,or warm-needle acupuncture,is a traditional external treatment widely used in China for thousands of years.However,the effects of different treatment times on limb spasticity post-stroke ha...Background:Warm acupuncture,or warm-needle acupuncture,is a traditional external treatment widely used in China for thousands of years.However,the effects of different treatment times on limb spasticity post-stroke have not been evaluated.Methods:We searched PubMed,Embase,the Cochrane Library,the Web of Science,the China National Knowledge Infrastructure,the Chinese Scientific and Journal Database,the Wanfang database,and the Chinese Biomedical Literature Database from inception to May 21st,2020,to seek information regarding randomized controlled trials studying warm-needle acupuncture for limb spasticity post-stroke.Two authors selected 24 studies fitting the eligibility criteria and developed this systematic review and meta-analysis.Results:Warm-needle acupuncture is shown to be more effective than other treatments used in the control groups(odds ratio(OR)=3.61,95%confidence intervals(CI)(2.51,5.19),P<0.001).This treatment decreased limb spasticity as assessed with the Modified Ashworth Scale(mean differences(MD)=−0.78,95%CI(−1.00,−0.56),P<0.001)and the Clinic Spasticity Index(MD=1.06,95%CI(0.51,1.60),P=0.0002),improved sensorimotor impairments according to the Fugl-Meyer Assessment(MD=9.51,95%CI(6.99,12.03),P<0.001),and improved activities of daily living according to the Barthel Index(MD=9.70,95%CI(6.27,13.12),P<0.001).Subgroup analysis based on the length of the treatment using the Modified Ashworth Scale,Fugl-Meyer Assessment,and Barthel Index showed better outcomes for patients who received more than 20 days of treatments(P<0.001).Conclusion:Warm-needle acupuncture is an effective treatment for limb spasticity post-stroke.A treatment frequency of more than 20 days appears to have better effectiveness than that of less than 20 days.展开更多
Copper is an indispensable trace metal element in the human body,which is mainly absorbed in the stomach and small intestine and excreted into the bile.Copper is an important component and catalytic agent of many enzy...Copper is an indispensable trace metal element in the human body,which is mainly absorbed in the stomach and small intestine and excreted into the bile.Copper is an important component and catalytic agent of many enzymes and proteins in the body,so it can influence human health through multiple mechanisms.Based on the biological functions and benefits of copper,an increasing number of researchers in the field of biomaterials have focused on developing novel copper-containing biomaterials,which exhibit unique properties in protecting the cardiovascular system,promoting bone fracture healing,and exerting antibacterial effects.Copper can also be used in promoting incisional wounds healing,killing cancer cells,Positron Emission Tomography(PET)imaging,radioimmunological tracing and radiotherapy of cancer.In the present review,the biological functions of copper in the human body are presented,along with an overview of recent progress in our understanding of the biological applications and development of copper-containing materials.Furthermore,this review also provides the prospective on the challenges of those novel biomaterials for future clinical applications.展开更多
As a metallic orthopedic implant,316L stainless steel(316L SS)is used extensively for its good resistance to corrosion and mechanical properties.However,it takes a long time to achieve osseointegration between 316L SS...As a metallic orthopedic implant,316L stainless steel(316L SS)is used extensively for its good resistance to corrosion and mechanical properties.However,it takes a long time to achieve osseointegration between 316L SS and adjacent tissues due to its bio-inert characteristic.Hence,the aim is to improve the bio-adaption of 316L SS.A good approach is to add elements to materials to improve their osteogenic capabilities by the appropriate release of ions.Hence copper-containing 316L stainless steel(316L-Cu SS)was investigated in this work,where Cu is an essential trace element that can stimulates osteogenesis.It was found that 316L-Cu SS was bio-safe and did not affect the proliferation of co-cultured osteoblasts in comparison with 316L SS.It increased cell apoptosis on day 1 but inhibited it on day 3,which cooperates with new bone formation processes.Osteoblasts extend themselves more quickly and in a better manner on the surface of 316L-Cu SS,wheneven more pseudopodia are present.Furthermore,the gene expression of alkaline phosphatase,collagen I and runt-related transcription factor 2(Runx2)in osteoblasts cultured with 316L-Cu SS was significantly enhanced.Runx2 protein expression increased,and osteogenesis was stimulated by 316L-Cu SS via an Akt cell signaling pathway.In conclusion,316L-Cu SS stimulates osteogenesis through activation of the Akt cell signaling pathway and the upregulation of Runx2.Thus,316L-Cu SS is a promising material that may be used in surgical implants to stimulate osteogenesis.展开更多
To reduce the risk of implant-associated infections,we previously designed and developed a series of medical copper(Cu)-bearing titanium alloys that release Cu ions and hence play an antibacterial role.However,both ex...To reduce the risk of implant-associated infections,we previously designed and developed a series of medical copper(Cu)-bearing titanium alloys that release Cu ions and hence play an antibacterial role.However,both excessive and deficient Cu levels adversely affect human health;therefore,the aim of the present study was to comprehensively evaluate the short-and long-term biosafety of Cu-bearing titanium alloys(Ti6 Al4V-Cu and Ti-Cu)both in vitro and in vivo.Moreover,the predominant kinetic mechanism of Cu ions release and its effect on biosafety were also investigated.The results indicate that the biocompatibility of the Cu-bearing titanium alloys meets the requirements of ISO standards and the Cu ion release kinetics display a good correlation over the entire time period in the normal zero-order model with an almost constant release rate.The release rate maintained at a parts per billion level safe for humans;consequently,we can conclude that our Cu-bearing titanium alloys have satisfactory biocompatibility.展开更多
基金financial support from National Natural Science Foundation of China(Nos.81630053,81873918)。
文摘Transjugular intrahepatic portosystemic shun(TIPS)is an effective procedure for the treatment of portal hypertension complications such as esophagogastric variceal bleeding and refractory ascites.To date,its use by many experts and scholars at home and abroad has benefitted countless patients.In order to further promote the development and innovation of TIPS in China,this paper briefly reviews the development process of TIPS at home and abroad,objectively analyzes the bottlenecks and breakthrough achievements in the development of TIPS,and discusses the application status and research progress of TIPS technology for different indications.Finally,we provide an outlook about the development and application of TIPS in China.
文摘Background:Warm acupuncture,or warm-needle acupuncture,is a traditional external treatment widely used in China for thousands of years.However,the effects of different treatment times on limb spasticity post-stroke have not been evaluated.Methods:We searched PubMed,Embase,the Cochrane Library,the Web of Science,the China National Knowledge Infrastructure,the Chinese Scientific and Journal Database,the Wanfang database,and the Chinese Biomedical Literature Database from inception to May 21st,2020,to seek information regarding randomized controlled trials studying warm-needle acupuncture for limb spasticity post-stroke.Two authors selected 24 studies fitting the eligibility criteria and developed this systematic review and meta-analysis.Results:Warm-needle acupuncture is shown to be more effective than other treatments used in the control groups(odds ratio(OR)=3.61,95%confidence intervals(CI)(2.51,5.19),P<0.001).This treatment decreased limb spasticity as assessed with the Modified Ashworth Scale(mean differences(MD)=−0.78,95%CI(−1.00,−0.56),P<0.001)and the Clinic Spasticity Index(MD=1.06,95%CI(0.51,1.60),P=0.0002),improved sensorimotor impairments according to the Fugl-Meyer Assessment(MD=9.51,95%CI(6.99,12.03),P<0.001),and improved activities of daily living according to the Barthel Index(MD=9.70,95%CI(6.27,13.12),P<0.001).Subgroup analysis based on the length of the treatment using the Modified Ashworth Scale,Fugl-Meyer Assessment,and Barthel Index showed better outcomes for patients who received more than 20 days of treatments(P<0.001).Conclusion:Warm-needle acupuncture is an effective treatment for limb spasticity post-stroke.A treatment frequency of more than 20 days appears to have better effectiveness than that of less than 20 days.
基金The authors acknowledge financial support from National Natural Science Foundation of China(Nos.81873918,51631009)Construction Project of Liaoning Medical Imaging and Interventional Medical Engineering Research Center(Grant No.18-006-9-01)Key Research and Serving Local Area Projects of the Educational Department of Liaoning Province,China(Grant No.ZF2019005).
文摘Copper is an indispensable trace metal element in the human body,which is mainly absorbed in the stomach and small intestine and excreted into the bile.Copper is an important component and catalytic agent of many enzymes and proteins in the body,so it can influence human health through multiple mechanisms.Based on the biological functions and benefits of copper,an increasing number of researchers in the field of biomaterials have focused on developing novel copper-containing biomaterials,which exhibit unique properties in protecting the cardiovascular system,promoting bone fracture healing,and exerting antibacterial effects.Copper can also be used in promoting incisional wounds healing,killing cancer cells,Positron Emission Tomography(PET)imaging,radioimmunological tracing and radiotherapy of cancer.In the present review,the biological functions of copper in the human body are presented,along with an overview of recent progress in our understanding of the biological applications and development of copper-containing materials.Furthermore,this review also provides the prospective on the challenges of those novel biomaterials for future clinical applications.
基金financially supported by the National Key Research and Development Program of China (No. 2018YFC1106600)the National Natural Science Foundation (Nos.81571778 and 51631009)the Science and Technology Plan of Shenyang (Nos.17-230-9-42 and 18-014-4-28)
文摘As a metallic orthopedic implant,316L stainless steel(316L SS)is used extensively for its good resistance to corrosion and mechanical properties.However,it takes a long time to achieve osseointegration between 316L SS and adjacent tissues due to its bio-inert characteristic.Hence,the aim is to improve the bio-adaption of 316L SS.A good approach is to add elements to materials to improve their osteogenic capabilities by the appropriate release of ions.Hence copper-containing 316L stainless steel(316L-Cu SS)was investigated in this work,where Cu is an essential trace element that can stimulates osteogenesis.It was found that 316L-Cu SS was bio-safe and did not affect the proliferation of co-cultured osteoblasts in comparison with 316L SS.It increased cell apoptosis on day 1 but inhibited it on day 3,which cooperates with new bone formation processes.Osteoblasts extend themselves more quickly and in a better manner on the surface of 316L-Cu SS,wheneven more pseudopodia are present.Furthermore,the gene expression of alkaline phosphatase,collagen I and runt-related transcription factor 2(Runx2)in osteoblasts cultured with 316L-Cu SS was significantly enhanced.Runx2 protein expression increased,and osteogenesis was stimulated by 316L-Cu SS via an Akt cell signaling pathway.In conclusion,316L-Cu SS stimulates osteogenesis through activation of the Akt cell signaling pathway and the upregulation of Runx2.Thus,316L-Cu SS is a promising material that may be used in surgical implants to stimulate osteogenesis.
基金funded by the National Key Research and Development Program of China(2018YFC1106600,2016YFC1100600)LiaoNing Revitalization Talents Program(XLYC1807069)+1 种基金National Natural Science Foundation(Nos.51631009,31870954,81873918)Startup Fundation for Docotors of Liaoning Province(NO.2019BS-293)。
文摘To reduce the risk of implant-associated infections,we previously designed and developed a series of medical copper(Cu)-bearing titanium alloys that release Cu ions and hence play an antibacterial role.However,both excessive and deficient Cu levels adversely affect human health;therefore,the aim of the present study was to comprehensively evaluate the short-and long-term biosafety of Cu-bearing titanium alloys(Ti6 Al4V-Cu and Ti-Cu)both in vitro and in vivo.Moreover,the predominant kinetic mechanism of Cu ions release and its effect on biosafety were also investigated.The results indicate that the biocompatibility of the Cu-bearing titanium alloys meets the requirements of ISO standards and the Cu ion release kinetics display a good correlation over the entire time period in the normal zero-order model with an almost constant release rate.The release rate maintained at a parts per billion level safe for humans;consequently,we can conclude that our Cu-bearing titanium alloys have satisfactory biocompatibility.
