1.Research progress on sepsis-associated liver injury
LIU Zhihong ; QIN Yaqin ; SU Minghua
China Tropical Medicine 2023;23(12):1358-
Sepsis is an inflammatory disorder syndrome caused by the infection of pathogenic microorganisms, which organ dysfunction due to the dysregulated response of the body to the infection. Sepsis is a dangerous disease with a high fatality rate. The liver, an important organ involved in human biological transformation, energy metabolism, and cytokine production. Its role in sepsis is like a "double-edged sword" because the liver acts as not only an important defense line of the body against microorganisms but also a common target of inflammatory disorders and damage, making it one of the most vulnerable organs in sepsis. The liver contributes to pathogen clearance through immune responses, but the resulting inflammatory reactions can also lead to tissue and organ damage. Sepsis liver injury is an independent risk factor for poor prognosis in sepsis patients, and preventing its occurrence and promoting early recovery can partially inhibit disease progression and reduce mortality rates. However, the pathogenesis of sepsis liver injury is not yet fully understood, and there is a lack of early and effective means of diagnosis and treatment. In-depth research on its pathogenesis will provide a better understanding of its occurrence and development, further supporting the theoretical basis for the treatment of sepsis liver injury and identifying some new targets for sepsis treatment, ultimately reducing the mortality of sepsis.
2.Induction of differentiation by diallyl disulfide through inhibition of JAK1/STAT3 in human leukemia HL-60 cells
Minghua WU ; Weiguo HUANG ; Hui TAN ; Jie HE ; Qi SU
Chinese Pharmacological Bulletin 1986;0(05):-
Aim To investigate JAKs/STATs signal transduction change in HL-60 cells differentiation induced by diallyl disulfide(DADS)and molecular mechanism regulating the differentiation.Methods After incubation of HL-60 cells with DADS or AG490(50 ?mol?L -1),the cell differentiation indexes were observed by cytomorphology, NBT reduction ability assay,cell myeloid differentiation antigen CD11b by flow cytometry. Kinase activity of JAKs/STATs was tested by western-blotting and expressions of nucleus transcription genes stats,c-myc,c-fos,c-jun were detected by immumocyte chemistry method.Results Cell differentiation index changes indicated that HL-60 cells were induced differentiation toward granulocytic lineage by DADS, Western blot test demonstrated that constitive phosphorylation of Jak1,stat3 kinase was suppressed. Stat3,c-myc gene expression decreased and c-fos, c-jun gene expression increased in HL-60 cells treated with DADS through immunocyte chemistry.Conclusion Inhibition of phosphative Jak1, Stat3 was involved in HL-60 cells differentiation induced by DADS, its molecular mechanism might be related to modulation of gene expression associated proliferation and differentiation,and inhibition of DNA systhesis, induction differentiation.
4.Experimental study of HL-60 cell differentiation induced by diallyl disulfide
Minghua WU ; Qi SU ; Ailan CHENG ; Hui TAN ; Ying SONG ;
Chinese Pharmacological Bulletin 1987;0(03):-
AIM To investigate the proliferation inhibition and inducing differentiation effect of diallyl disulfide (DADS) on human acute myeloid cell line HL 60. METHODS Inhibition of HL 60 cell proliferation was shown by MTT assay; cell differentiation was determined by morphologic observation,the ability of NBT reduction activity and flow cytometric detection. RESULTS DADS has significant anti proliferative effect on HL 60 cells in a concentration dependent manner. The reduction ability of NBT and cell surface differentiation antigens CD11b had significantly increased( P
5.Epidemiological characteristics and therapeutic strategies of hepatitis C virus genotype 6 in Guangxi area
Zhi WEI ; Minghua SU ; Jianning JIANG ; Wei TANG ; Zhihong LIU
Chinese Journal of Infectious Diseases 2015;(7):409-414
Objective To investigate the epidemiological characteristics and therapeutic strategies of patients infected with hepatitis C virus (HCV)genotype 6 in Guangxi area.Methods Serum samples were collected from 150 patients with serologic HCV RNA positive in Guangxi, China. Reverse transcription nested polymerase chain reaction (PCR)was employed to amplify HCV NS5B fragments and the DNA products were sequenced.The sequences obtained were compared with the sequences deposited in GenBank to construct a phylogenetic tree.Among the patients who accomplished 48-week treatment of interferon plus ribavirin and 24-week follow-up after stopping medication,10 cases were infected with genotype 6a and 28 cases with genotype 1 HCV.The virological responses were evaluated at week 4,week 12,week 24 of treatment and week 24 after the end of the treatment.Results Among all recruited 150 cases,21 (14.0%)cases were HCV genotype 6 including two subtypes 6a (n = 20 )and 6d (n = 1 ). Genotype 6 HCV mainly affected intravenous drug users, especially with age of ≤ 40 years old. Phylogenetic tree showed that there was very close evolutionary distance between HCV 6 strains of Guangxi and Hongkong,China strains (Y12083,DQ 480515)and Vietnam strain (EU246930).All of 10 HCV genotype 6a patients who completed 48 weeks of antiviral therapy achieved sustained virological response (SVR).The rate of SVR was higher than that of genotype 1 patients,but without statistically different significance (10/10 vs 75 .0%,P >0.05).Conclusion HCV genotype 6 in Guangxi area mainly affects young intravenous drug users with age of ≤ 40 years old,which has high homology with Hongkong,China and Vietnam standard strains.Patients with HCV 6 genotype infection treated with interferon plus ribavirin for 48 weeks usually achieve favorable SVR.
6.Early changes of angiopoietin-2 in multiple trauma patients and its clinical significance
Minghua LIU ; Jun TIAN ; Xiangyu CHEN ; Liang WEN ; Yongping SU
Chinese Journal of Trauma 2010;26(4):328-331
Objective To investigate early changes of angiopoietin-2(Ang-2)in multiple trauma patients and assess its clinical significance.Methods Forty-five multiple trauma patients aged 2060 years admitted to the hospital within one hour after injury were randomly divided into three groups according to injury severity score(ISS).Blood specimens were obtained immediately upon arrival in the emergency department and plasma samples were assayed for comparing changes of Ang-2,TNF-a and IL-6.Meanwhile,plasma level of Ang-2 was measured and analyzed under different oxygenation index,shock index and base deficit.Results Plasma level of Ang-2 was positively correlated with ISS(P < 0.01)and was concordant with the plasma levels of TNF-a and IL-6(P<0.01).Furthermore,plasma level of Ang-2 was elevated upon increase of shock index or decrease of oxygenation index(P < 0.01).Plasma level of Ang-2 was elevated with the increase of base deficit(P < 0.01).Conclusions High level of Ang-2 is a marker of endothelial activation and dysfunction early after trauma.Ang-2 is related tightly with the injury severity,inflammation factors,systemic oxygenation and tissue hypoperfusion and may have a tight relation with pathophysiological development and clinical outcome after trauma.
7.Comparison of hip arthroplasty and internal fixation for the treatment of intertrochanteric fractures
Binggang XIONG ; Wenwei XIE ; Hangang YAO ; Shengcheng LI ; Deyun LIAO ; Zaixue LI ; Minghua LI ; Changyao SU
Chinese Journal of Primary Medicine and Pharmacy 2008;15(7):1137-1139
Objective To compare the effect of hip artificial replacement and DHS internal fixation for the treatment of intertrochanteric fracture, and investigate the difference of the two method. Methods Eighty-six pa- tients with intertrochanterie fracture patients were treated with hip arthroplasty, and dynamic hip screw. The pa- tients were followed up for 6 months, and compared the operation rime, blood loss, postoperative complications, sur- vival rate, postoperative hip function score and lose situation. Results There was no significant difference in opera- tion time,blood loss,postoperative complications,in local symptoms hip varus deformation occured in the DHS inter- hal fixation because lag screw cut-our and the collapse of the medial cortex, hip and thigh pain oecured in artificial re- placement,hip function score dropped 9.5 % in DHS and 9.2% in artificial replacement. Conclusion For elderly patients, eomminuted fracture and osteoporosis, and other types of unstable intertrochanteric fracture patients, the primary purpose of surgery is to provide to patients more activities of the early conditions,so hip arthroplasty can be used to the treatment of intertrochanteric fracture,as a reasonable replacement surgery.
8.The effect of neuromuscular electrical stimulation on swallowing function after stroke
Wenhua SU ; Wenjing YAN ; Minghua ZHONG ; Yanmin LIN ; Chengfei GAO ; Qixiu ZHU
Chinese Journal of Physical Medicine and Rehabilitation 2015;37(3):183-186
Objective To observe the clinical therapeutic effects of neuromuscular electric stimulation (NMES) on patients with swallowing disorders after stroke and to assess the value of surface electromyography (sEMG).Methods Forty stroke survivors with swallowing disorders were divided into a treatment group (20 cases) and a control group (20 cases) using a random number table.All of the patients were given routine medication and conventional swallowing training lasting 2 weeks,on the basis of which the patients in the treatment group were also given electrical stimulation.The seriousness of their swallowing disorders was evaluated and surface electromyographs were recorded for both groups before and after the 2 weeks of treatment.Results After treatment,the average dysphagia rating in the treatment group was significantly higher than before treatment,and significantly higher than that of the control group.sEMG of the suprahyoid muscles showed that the swallowing duration of both groups had significantly improved,but the values of the treatment group were significantly better than those of the control group.Conclusions NMES plus conventional swallowing training can significantly improve swallowing function for patients with swallowing disorders after stroke.sEMG can be regarded as an effective method for assessing swallowing disorders.
9.The discussion on therapeutic method and curative effect of acute subjectivity tinnitus
Guijun YANG ; Minghua GAO ; Chaojun LI ; Zhongwan LI ; Shaojing KUANG ; Fan ZOU ; Shuping SU
Chongqing Medicine 2015;(31):4352-4354
Objective To observe the therapeutic efficacy of different treatment programs on the acute subjective tinnitus . Methods 327 patients with acute subjectivity tinnitus were randomly divide into physical ,medication and comprehensive treatment group .The 97 cases in physical group were treated with hyperbaric oxygen ,acupuncture and sound therapy ;the 103 cases in medica‐tion group were treated with microcirculation and oral steroids ;the 127 cases in comprehensive treatment groups were treated with combination the therapy of above what have mentioned .THI was used to evaluate three groups before the treatment ,two and four weeks after treatment .Results After two week′s treatment ,the efficiency rate for physical group is 60 .82% ,64 .78% in medica‐tion group and 70 .08% in comprehensive group .After four weeks of treatment ,the efficiency rate of each group is 70 .10% , 72 .81% and 80 .31% .At two‐week time point ,there was no significant difference between drug and physics group (P> 0 .05) , there was statistically significant difference between medication group and comprehensive group (P< 0 .05) .At four‐week time point ,the difference of physics group and drug group had no statistically significance compared with the two‐week in each group (P>0 .05) ,but there was a statistically significant difference in comprehensive group (P<0 .05) ,meanwhile ,there was statistically significant differences between comprehensive group and the physical group and drug group (P<0 .05) .Conclusion Physical and medication therapy have quite effects on acute subjective tinnitus ,but the effect was worse than the comprehensive therapy group . After four weeks of treatment ,the efficiency of purely physical and drug therapy have not been significantly improved compared with two weeks time ,but still improved of comprehensive treatment .