A crystal plasticity finite element model was developed for the drawing deformation of pure copper micro wire,based on rate-dependent crystal plasticity theory.The impact of wire diameter compression ratio on the micr...A crystal plasticity finite element model was developed for the drawing deformation of pure copper micro wire,based on rate-dependent crystal plasticity theory.The impact of wire diameter compression ratio on the micro-mechanical deformation behavior during the wire drawing process was investigated.Results indicate that the internal deformation and slip of the drawn wire are unevenly distributed,forming distinct slip and non-slip zones.Additionally,horizontal strain concentration bands develop within the drawn wire.As the wire diameter compression ratio increases,the strength of the slip systems and the extent of slip zones inside the deformation zone also increase.However,the fluctuating stress state,induced by contact pressure and frictional stress,results in a rough and uneven wire surface and diminishes the stability of the drawing process.展开更多
Objective:To investigate the clinical effect of microecological preparation combined with bicyclol on nonalcoholic fatty liver (NAFLD) and its effect on liver fibrosis, serum inflammatory factors and transforming grow...Objective:To investigate the clinical effect of microecological preparation combined with bicyclol on nonalcoholic fatty liver (NAFLD) and its effect on liver fibrosis, serum inflammatory factors and transforming growth factorβ1 (TGF-β1).Methods:106 patients with NAFLD were randomly divided into control group (53 cases) and case group (53 cases). The control group was given routine liver protection and bicyclol, and the case group was given Bifidobacterium triple viable probiotics based on the treatment of the control group. The two groups were treated for 6 weeks. The clinical effect, liver fibrosis, serum inflammatory factors, TGF-β1 and other changes were observed in the two groups after treatment.Results:The total effective rate of the case group was significantly higher than that of the control group (96.22% vs 83.02%), (χ2=4.970,P=0.026). After treatment, the ALB and HDL levels of the two groups of patients were higher than before. ALT, AST, and TBIL, LN, HA, PCIII, CIV, TC, TG, LDL, IL-6, TNF-a, hs-CRP, TGF-β1 were lower, compared with before and after treatment;and the improvement of liver function, liver fibrosis, blood lipid levels, serum inflammatory factors, and TGF-β1 in the case group was better than that in the control group, and the differences were statistically significant (P <0.05). The incidence of adverse reactions in the case group was lower than that in the control group (5.66% vs 11.32%). The difference was not statistically significant (χ2=1.093,P=0.296).Conclusion: Microecological preparations combined with bicyclol in the treatment of NAFLD have exact clinical effects, can significantly improve liver function, regulate blood lipid levels, reduce inflammation and liver fibrosis, and have good safety, which deserves further clinical research and promotion.展开更多
Objective:To investigate the effect of Fuzheng Huayu Capsule combined with nucleoside antiviral drugs on liver and kidney function,serum inflammatory factors,Toll-like receptor 4(TLR-4),transforming growth factorβ1(T...Objective:To investigate the effect of Fuzheng Huayu Capsule combined with nucleoside antiviral drugs on liver and kidney function,serum inflammatory factors,Toll-like receptor 4(TLR-4),transforming growth factorβ1(TGF-β1)And aspartate aminotransferase-platelet ratio index(APRI).Methods:A total of 144 patients with HBV infection and decompensated cirrhosis were selected.All patients were divided into control group and case group by random number table method,with 72 cases in each group.The control group was given conventional liver protection and antiviral therapy;the case group was supplemented with Fuzheng Huayu Capsule on the basis of treatment in the control group.The changes of liver and kidney function,serum inflammatory factors,TLR-4,TGF-β1 and APRI in the two groups were observed.Results:The total effective rate of the case group was 93.06%,higher than 76.32%of the control group(P<0.05).Case group HBV DNA negative rate,negative rate of hepatitis B virus surface antigen(HBsAg),negative rate of hepatitis B virus e antigen(HBeAg)were significantly higher than the control group(76.39%vs 59.72%,55.56%vs 31.94%,51.39%vs 29.17%),the difference was statistically significant(P<0.05).Alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),hyaluronic acid(HA),laminin(LN),typeⅢprocollagen after treatment(PCⅢ),typeⅣcollagen(CⅣ),inner diameter of portal vein,inner diameter of splenic vein,spleen thickness,resistance index,urea nitrogen(BUN),creatinine(Cr),interleukin-6(IL-6),interleukin-8(IL-8),high-sensitivity C-reactive protein(hs-CRP),tumor necrosis factor-α(TNF-α),TLR-4,TGF-β1,APRI are lower than before treatment,albumin(ALB)and renal blood The flow rate was higher than before treatment;liver function indicators,liver fibrosis indicators,liver and spleen imaging indicators,renal hemodynamic indicators,serum inflammatory factors,TLR-4 in the case group The improvement of TGF-β1 and APRI.Conclusion:Fuzheng Huayu Capsules combined with nucleoside antiviral drugs have a clear clinical effect on patients with HBV infection and decompensated liver cirrhosis,significantly improve the clinical symptoms of patients,improve liver and kidney function,reduce inflammatory factor production,and can effectively inhibit HBV replication.Certain promotion value is worthy of further clinical research.展开更多
The epidermal growth factor receptors(EGFRs)in some tumor cells are significant targets for drug discovery.In this work,we have developed an EGFR cell membrane chromatography and online high performance liquid chromat...The epidermal growth factor receptors(EGFRs)in some tumor cells are significant targets for drug discovery.In this work,we have developed an EGFR cell membrane chromatography and online high performance liquid chromatography/mass spectrometry system for screening active component from Rhizoma Polygoni Cuspidati.As a result,resveratrol from Rhizoma Polygoni Cuspidati was found to be the active component acting on EGFR like gefitinib.There was a good relationship between their inhibiting effects on EGFR secretion and HEK293 EGFR cell growth in vitro.The EGFR/CMC-online-HPLC/MS system demonstrated fast and effective characteristics for screening leading compounds from traditional Chinese medicine.展开更多
A series of novel indole derivatives were designed and synthesized and their inhibitory activity against B-Raf and HepG2 cell were also described. Among them, compounds 7a and 7b exhibited excellent potency, which sho...A series of novel indole derivatives were designed and synthesized and their inhibitory activity against B-Raf and HepG2 cell were also described. Among them, compounds 7a and 7b exhibited excellent potency, which showed the potential for further research as lead compounds.展开更多
Hepatocellular carcinoma (HCC) remains a challenging disease with a high recurrence rate after surgery and there is an imminent need to identify new treatments. Currently, adjuvant therapy like chemotherapeutics arise...Hepatocellular carcinoma (HCC) remains a challenging disease with a high recurrence rate after surgery and there is an imminent need to identify new treatments. Currently, adjuvant therapy like chemotherapeutics arises to counteract the malignant trait escaping from apoptosis of tumors induced by overexpressed anti-apoptotic factors in HCC. Myeloid cell leukaemia-1 (Mcl-1) as an anti-apoptotic member of Bcl-2 is highly expressed in diverse human cancers, which contributes to cancer cell survival and the resistance to diverse chemotherapeutic agents. It is confirmed that Mcl-1 protein expression is quite enhanced in human HCC tissue compared to adjacent non-tumor tissue. Correspondingly, forced Mcl-1 down-regulation leads to prominent apoptosis of HCC cells and a sensitization towards chemotherapeutic drug-induced apoptosis, which indicates Mcl-1 is indeed a crucial regulatory factor of HCC. Hence, this review highlights the function of Mcl-1 on HCC progression, how it is regulated in HCC and the recent anti-hepatoma drug research and development down-regulation of Mcl-1 or targeting on Mcl-1. Meanwhile, the authors discuss Mcl-1 as an essential regulatory factor in HCC can be designed as target for drugs to improve the survival of HCC patients.展开更多
Telomerase is a special reverse transcriptase,which adds telomeric DNA repeats to the ends of chromosome to offset loss.A vast majority of cancer cells have been shown that their telomerase was up-regulated and sustai...Telomerase is a special reverse transcriptase,which adds telomeric DNA repeats to the ends of chromosome to offset loss.A vast majority of cancer cells have been shown that their telomerase was up-regulated and sustain proliferation and growth.Hepatocellular carcinoma(HCC)is one of the most commonly occurring cancers worldwide.It is also one of the leading causes of cancer death,and is connected with abnormal telomerase function.However,reports about the telomerase mutations and HCC are still insufficient.In this review,the structure and mechanism of action of telomerase,inherited disorders caused by its mutations,hepatocarcinoma,and drug development targeting telomerase are reviewed.However,further investigations are needed to elucidate human telomerase RNA gene regulation for initiation and progression of the liver cancer.展开更多
基金the National Natural Science Foundation of China(Nos.U21A2051,52173297,52071133)the R&D Projects of Henan Academy of Sciences of China(No.220910009)+2 种基金the Key R&D and Promotion Projects of Henan Province of China(No.212102210441)the Joint Fund of Henan Science and Technology R&D Plan of China(No.222103810037)the Zhongyuan Scholar Workstation Funded Project of China(No.214400510028).
文摘A crystal plasticity finite element model was developed for the drawing deformation of pure copper micro wire,based on rate-dependent crystal plasticity theory.The impact of wire diameter compression ratio on the micro-mechanical deformation behavior during the wire drawing process was investigated.Results indicate that the internal deformation and slip of the drawn wire are unevenly distributed,forming distinct slip and non-slip zones.Additionally,horizontal strain concentration bands develop within the drawn wire.As the wire diameter compression ratio increases,the strength of the slip systems and the extent of slip zones inside the deformation zone also increase.However,the fluctuating stress state,induced by contact pressure and frictional stress,results in a rough and uneven wire surface and diminishes the stability of the drawing process.
基金China Hepatitis Prevention Fund Project(tqgb20170015)Hebei medical science research key project(20170933)+1 种基金Hebei medical science research key project(20150842)Hebei Science and Technology Department funded project(162777133)
文摘Objective:To investigate the clinical effect of microecological preparation combined with bicyclol on nonalcoholic fatty liver (NAFLD) and its effect on liver fibrosis, serum inflammatory factors and transforming growth factorβ1 (TGF-β1).Methods:106 patients with NAFLD were randomly divided into control group (53 cases) and case group (53 cases). The control group was given routine liver protection and bicyclol, and the case group was given Bifidobacterium triple viable probiotics based on the treatment of the control group. The two groups were treated for 6 weeks. The clinical effect, liver fibrosis, serum inflammatory factors, TGF-β1 and other changes were observed in the two groups after treatment.Results:The total effective rate of the case group was significantly higher than that of the control group (96.22% vs 83.02%), (χ2=4.970,P=0.026). After treatment, the ALB and HDL levels of the two groups of patients were higher than before. ALT, AST, and TBIL, LN, HA, PCIII, CIV, TC, TG, LDL, IL-6, TNF-a, hs-CRP, TGF-β1 were lower, compared with before and after treatment;and the improvement of liver function, liver fibrosis, blood lipid levels, serum inflammatory factors, and TGF-β1 in the case group was better than that in the control group, and the differences were statistically significant (P <0.05). The incidence of adverse reactions in the case group was lower than that in the control group (5.66% vs 11.32%). The difference was not statistically significant (χ2=1.093,P=0.296).Conclusion: Microecological preparations combined with bicyclol in the treatment of NAFLD have exact clinical effects, can significantly improve liver function, regulate blood lipid levels, reduce inflammation and liver fibrosis, and have good safety, which deserves further clinical research and promotion.
基金China Hepatitis Prevention Fund Project(No.tqgb20170015)Hebei medical science research key project(No.20170933)+1 种基金Hebei medical science research key project(No.20150842)Hebei Science and Technology Department funded project(No.162777133).
文摘Objective:To investigate the effect of Fuzheng Huayu Capsule combined with nucleoside antiviral drugs on liver and kidney function,serum inflammatory factors,Toll-like receptor 4(TLR-4),transforming growth factorβ1(TGF-β1)And aspartate aminotransferase-platelet ratio index(APRI).Methods:A total of 144 patients with HBV infection and decompensated cirrhosis were selected.All patients were divided into control group and case group by random number table method,with 72 cases in each group.The control group was given conventional liver protection and antiviral therapy;the case group was supplemented with Fuzheng Huayu Capsule on the basis of treatment in the control group.The changes of liver and kidney function,serum inflammatory factors,TLR-4,TGF-β1 and APRI in the two groups were observed.Results:The total effective rate of the case group was 93.06%,higher than 76.32%of the control group(P<0.05).Case group HBV DNA negative rate,negative rate of hepatitis B virus surface antigen(HBsAg),negative rate of hepatitis B virus e antigen(HBeAg)were significantly higher than the control group(76.39%vs 59.72%,55.56%vs 31.94%,51.39%vs 29.17%),the difference was statistically significant(P<0.05).Alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),hyaluronic acid(HA),laminin(LN),typeⅢprocollagen after treatment(PCⅢ),typeⅣcollagen(CⅣ),inner diameter of portal vein,inner diameter of splenic vein,spleen thickness,resistance index,urea nitrogen(BUN),creatinine(Cr),interleukin-6(IL-6),interleukin-8(IL-8),high-sensitivity C-reactive protein(hs-CRP),tumor necrosis factor-α(TNF-α),TLR-4,TGF-β1,APRI are lower than before treatment,albumin(ALB)and renal blood The flow rate was higher than before treatment;liver function indicators,liver fibrosis indicators,liver and spleen imaging indicators,renal hemodynamic indicators,serum inflammatory factors,TLR-4 in the case group The improvement of TGF-β1 and APRI.Conclusion:Fuzheng Huayu Capsules combined with nucleoside antiviral drugs have a clear clinical effect on patients with HBV infection and decompensated liver cirrhosis,significantly improve the clinical symptoms of patients,improve liver and kidney function,reduce inflammatory factor production,and can effectively inhibit HBV replication.Certain promotion value is worthy of further clinical research.
基金This work was supported by the National Natural Science Foundation of China(Grant number 30730110).
文摘The epidermal growth factor receptors(EGFRs)in some tumor cells are significant targets for drug discovery.In this work,we have developed an EGFR cell membrane chromatography and online high performance liquid chromatography/mass spectrometry system for screening active component from Rhizoma Polygoni Cuspidati.As a result,resveratrol from Rhizoma Polygoni Cuspidati was found to be the active component acting on EGFR like gefitinib.There was a good relationship between their inhibiting effects on EGFR secretion and HEK293 EGFR cell growth in vitro.The EGFR/CMC-online-HPLC/MS system demonstrated fast and effective characteristics for screening leading compounds from traditional Chinese medicine.
基金financially supported by the Natural Science Foundation of Jiangsu Province(No.BK2009303)the National Natural Science Foundation of China(No.30973609)+1 种基金Fundamental Research Funds for the Central Universities(No.JKZ2011004)Specialized Research Fund for the Doctoral Program of Higher Education(No.20100096110007)
文摘A series of novel indole derivatives were designed and synthesized and their inhibitory activity against B-Raf and HepG2 cell were also described. Among them, compounds 7a and 7b exhibited excellent potency, which showed the potential for further research as lead compounds.
基金the National Natural Science Foundation of China(Grant no.81370088)the Fundamental Research Funds for the Central Universities of Zhuizong.
文摘Hepatocellular carcinoma (HCC) remains a challenging disease with a high recurrence rate after surgery and there is an imminent need to identify new treatments. Currently, adjuvant therapy like chemotherapeutics arises to counteract the malignant trait escaping from apoptosis of tumors induced by overexpressed anti-apoptotic factors in HCC. Myeloid cell leukaemia-1 (Mcl-1) as an anti-apoptotic member of Bcl-2 is highly expressed in diverse human cancers, which contributes to cancer cell survival and the resistance to diverse chemotherapeutic agents. It is confirmed that Mcl-1 protein expression is quite enhanced in human HCC tissue compared to adjacent non-tumor tissue. Correspondingly, forced Mcl-1 down-regulation leads to prominent apoptosis of HCC cells and a sensitization towards chemotherapeutic drug-induced apoptosis, which indicates Mcl-1 is indeed a crucial regulatory factor of HCC. Hence, this review highlights the function of Mcl-1 on HCC progression, how it is regulated in HCC and the recent anti-hepatoma drug research and development down-regulation of Mcl-1 or targeting on Mcl-1. Meanwhile, the authors discuss Mcl-1 as an essential regulatory factor in HCC can be designed as target for drugs to improve the survival of HCC patients.
文摘Telomerase is a special reverse transcriptase,which adds telomeric DNA repeats to the ends of chromosome to offset loss.A vast majority of cancer cells have been shown that their telomerase was up-regulated and sustain proliferation and growth.Hepatocellular carcinoma(HCC)is one of the most commonly occurring cancers worldwide.It is also one of the leading causes of cancer death,and is connected with abnormal telomerase function.However,reports about the telomerase mutations and HCC are still insufficient.In this review,the structure and mechanism of action of telomerase,inherited disorders caused by its mutations,hepatocarcinoma,and drug development targeting telomerase are reviewed.However,further investigations are needed to elucidate human telomerase RNA gene regulation for initiation and progression of the liver cancer.
