1.Advances in the mechanism of microRNAs regulating acute lung injury in sepsis
Clinical Medicine of China 2021;37(3):280-284
Sepsis is a systemic inflammatory disease caused by infection that affects the lungs and can develop into acute lung injury or acute respiratory distress syndrome.Acute lung injury caused by sepsis is one of the common critical diseases in intensive care unit, which is often manifested as intractable hypoxemia, diffuse double pneumonia infiltration, pulmonary edema, etc.Its pathogenesis is complex, and there is no specific treatment method at present.MicroRNAs are non-coding gene regulators involved in the regulation of various physiological and pathological processes of the body, including sepsis acute lung injury.This paper briefly summarized the pathophysiological mechanism of acute lung injury in sepsis, summarized the regulatory mechanism of miRNAs on alveolar macrophages, epithelial cells and endothelial cells during the pathogenesis of ALI, and finally comprehensively expounded the current situation and future direction of miRNAs in the treatment of acute lung injury in sepsis.
2.Drug-coated balloon versus uncoated balloon angioplasty for femoropopliteal artery ischemic disease:a meta-analysis of curative effect and safety
Yili XIANG ; Wenkai ZHANG ; Yong YANG
Journal of Interventional Radiology 2017;26(6):500-507
Objective To conduct a meta-analysis of the curative effect and safety of the drug-coated balloon (DCB) and uncoated balloon (UCB) in treating femoropopliteal artery ischemic disease in order to provide more credible conclusion to guide clinical practice.Methods By retrieving relevant documents contained in Medline,EMbase,Cochrane library,EBSCO,Springer Link,Scopus,Web and other data pools,the research articles of clinical trials that met the inclusion and exclusion criteria were collected.According to the risk assessment standard of Cochrane collaboration network,the academic qualities of included articles were evaluated,the relevant data were extracted,then,the meta-analysis was conducted with RevMan5.3 software.Results A total of 8 papers were collected,which were originated from 6 clinical trials (from 2008 to 2015) and included 1188 patients in total.DCB group had 722 patients,and UCB group had 466 patients.Meta analysis showed that the target lesion revascularization (TLR) rates at 6,12 and 24 months after angioplasty in DCB group were significantly lower than those in UCB group.The late lumen loss (LLL) amount and re-stenosis rate at 6 month after angioplasty in DCB group were lower than those in UCB group.No statistically significant differences in amputation rate and mortality at 6,12 and 24 months after angioplasty existed between the two groups.Conclusion In treating femoropopliteal artery ischemic disease,the use of DCB is superior to the use of UCB in aspects of TLR rate,LLL amount and re-stenosis rate,besides,no significant difference in safety exists between DCB and UCB.Therefore,priority should be given to the use of DCB when the patient's economic conditions permit.
3.Relationship between Left Ventricular Remodeling and Systolic Function Assessed by Left Ventricular Mid-wall Fractional Shortening
Dongmei MIAO ; Ping YE ; Peng GAO ; Jinrao ZHANG ; Wenkai XIAO
Chinese Journal of Rehabilitation Theory and Practice 2009;15(8):767-769
Objective To investigate the correlation between left ventricular remodeling and systolic function by mid-wall fractional shortening(mFS).Methods 51 cases of hypertension and 47 cases of healthy volunteers were enrolled and systolic parameters were measured as ejection fraction(EF), fractional shortening(FS) and mFS. Acorrding to left ventricular remodeling parameteres inclulding LVMI and RWT, hypertension group was divided into four subgroups. The correlation among these parameters were analyzed.Results Thicker left ventricular wall and lower mFS in patient with hypertension compaired with those in controll (P<0.05). There were negative correlation between mFS and RWTr=-0.42, P<0.05) and positive correlation between mFS and LVMI r=-0.67, P<0.01).Conclusion mFS is a valuable parameter compared with traditional parameteres such as EF and FS. There is a linear association between parameteres of ventricular remodeling and systolic function assessed by mFS in early stage of hypertension.
4.Review on the methods of processing rhubarb.
Guo LI ; Difeng ZHANG ; Runmin YU ; Wenkai WANG
Journal of Integrative Medicine 2008;6(11):1184-9
5.Regulating osteogenic and adipogenic differentiation of bone marrow mesenchymal stem cells by extracellular adenosine triphosphate
Wenkai LI ; Yingchi ZHANG ; Sheng WEI ; Yong YANG ; Hua WU
Chinese Journal of Tissue Engineering Research 2015;(32):5085-5091
BACKGROUND:Impaired balance between osteogenesis and adipogenesis of bone marrow mesenchymal stem cels is a crucial pathological mechanism of osteoporosis. Mechanical loads applied to bone tissue can increase bone formation and improve bone strength, and meanwhile lead to the release of extracelular nucleotides, such as adenosine triphosphate.
OBJECTIVE: To determine the effects of adenosine triphosphate on the osteogenic and adipogenic differentiation of bone marrow mesenchymal stem cels and to investigate the underlying mechanisms.
METHODS:The effect of adenosine triphosphate (10, 50, 250 μmol/L) on differentiation of bone marrow mesenchymal stem cels were measured by osteogenic and adipogenic related genes expression, alizarin red staining and oil red O staining. The activation of ERK1/2 signaling pathway by adenosine triphosphate was tested using western blot assay.
RESULTS AND CONCLUSION: Incubation of bone marrow mesenchymal stem cels with adenosine triphosphate resulted in the dose-dependent increase of osteogenic genes expression and calcium deposition, and inhibition of adipogenic genes expression and lipid droplet formation, but had no effects on cel proliferation. Adenosine triphosphate activated ERK1/2 signaling pathway, and U0126 as an ERK1/2 inhibitor restrained the effect of adenosine triphosphate on the differentiation of bone marrow mesenchymal stem cels.
6.Hemoperfusion in treatment of overdose digoxin poisoning
Hongjun YANG ; Xinru YUAN ; Xigang ZHANG ; Wenkai NIU ;
Chinese Journal of Clinical Pharmacology and Therapeutics 1999;0(04):-
AIM: To observe the efficacy of hemoperfusion (HP) to treat one case suffering from overdose digoxin poisoning. METHODS: HA 330 ml and YT 160 hemoperfusion cartridges were used and blood vessel was femoral vein, single needle and two chamber catheter. Four HP were done. RESULTS: The blood digoxin level were 16 ?g?L -1 before and after the 1st HP, 9.22 ?g?L -1 at the 2nd, 12.4 ?g?L -1 before the 3th, 10.45 ?g?L -1 after the 3th, 3.22 ?g?L -1 before the 4th, and 2.84 ?g?L -1 after the 4th HP. CONCLUSION: This case demonstrats that multiple HP at different period may decrease the blood digoxin level step by step.
7.Arterial Stiffness and Diastolic Function in Primary Hypertension
Dongmei MIAO ; Ping YE ; Peng GAO ; Jinyao ZHANG ; Wenkai XIAO
Chinese Journal of Hypertension 2006;0(12):-
Objective To study the relationship between arterial compliance and diastolic dysfunction in essential hypertensive patients.Methods Fifty-one treated hypertensive patients and 47 normotensive controls were enrolled.Arterial stiffness was assessed by vascular e-TRACKING technology of ultrosonic.Tissue Doppler echocardiography combined with conventional Doppler echocardiography was used for assessment of left ventricular diastolic function and peak late diastolic velocity of mitral flow.The ratio of E/A,Em/Am and E/Em were measured.Results Compared with normotensive controls,hypertensive patients have increased arterial sclerosis index(?) [(10.5?3.8) vs control(8.1?3.4),P
8.Bone marrow mesenchymal stem cells regulate nuclear factor kappaB expression in alveolar macrophages of acute lung injury rats with sepsis
Jifeng ZHANG ; Ziqi ZHANG ; Xiaotian LUO ; Linyi HOU ; Qin JIANG ; Jieping LV ; Wenkai ZHANG
Chinese Journal of Tissue Engineering Research 2015;(10):1556-1561
BACKGROUND:Bone marrow mesenchymal stem cels have a therapeutic effect on acute lung injury, but the mechanism is unclear. If the mechanism is understood, the majority of patients with acute lung injury can obtain a benefit. OBJECTIVE:To explore the possible mechanism underlying bone marrow mesenchymal stem cels in the treatment of acute lung injury with sepsis in rats. METHODS: (1) Thirty-six adult Wistar rats were randomly divided into three groups, sham operation group (sham group), sepsis group and bone marrow mesenchymal stem cels group (cel treatment group). In the sepsis and cel treatment groups, animal models of sepsis with acute lung injury were established by cecal ligation and puncture, while in the sham group, the cecum was not ligated and punctured. Then, 1 mL normal saline was injected via the femoral vein in the sepsis and sham groups, and 1 mL bone marrow mesenchymal stem cel suspension (1×109/L) was injected into the cel treatment group. After 6 hours, interleukin 10 and macrophage inflammatory protein-2 levels in serum were measured in the three groups. Lung tissues were taken for pathological observation using hematoxylin-eosin staining. (2) Rat alveolar macrophages were obtained by bronchoalveolar lavage, seeded into 24-wel culture plates, and divided into three groups: control group (group A), sepsis model group (group B) and intervention group of bone marrow mesenchymal stem cels (group C). Normal saline, septic plasma, and co-intervention of septic plasma and mesenchymal stem cels were used in the groups A, B, C, respectively. Then, cels in the three groups were cultured in a 5% CO2 incubator at 37℃ for 1 hour. After that, alveolar macrophages were taken to detect whether nuclear factor-κB (P65) protein entered into the nucleus using laser scanning confocal microscopy. RESULTS AND CONCLUSION: (1) The results of animal experiments showed that compared with the sham group, the macrophage inflammatory protein-2 levels in the sepsis group and cel treatment group were significantly increased (P < 0.05), but the macrophage inflammatory protein-2 level in the cel treatment group was significantly lower than that in the sepsis group (P < 0.05); there were no significant differences in serum interleukin 10 levels among the three groups (P > 0.05); inflammatory cel infiltration, interstitial pulmonary edema and pulmonary hemorrhage existed in the sepsis and cel treatment groups, but these symptoms were significantly reduced in the cel treatment group compared with the sepsis group. (2) Results from cel experiments showed that compared with the group A, in group B and group C, the number of nuclear factor-κB (P65) proteins into the nucleus was significantly higher (P < 0.05), but it was lower in the group C than the group B (P < 0.05). These findings indicate that bone marrow mesenchymal stem cels in acute lung injury with sepsis can regulate nuclear factor-κB (P65) protein of alveolar macrophages into the nucleus, reduce expression of macrophage inflammatory protein-2, and thereby play a protective role in the lungvia reducing neutrophil infiltration. Temporarily, this study cannot explain whether bone marrow mesenchymal stem cels have an effect on interleukin 10.
9.Urine albumin excretion and related factors in patients with essential hypertension
Minghua ZHANG ; Ping YE ; Leiming LUO ; Wenkai XIAO ; Hongmei WU ; Dejun LIU ; Guoshu LIU
Chinese Journal of cardiovascular Rehabilitation Medicine 2016;25(1):28-32
Objective:To study urine albumin excretion (UAE) and its related factors in patients with essential hyper‐tension (EH) .Methods :A total of 113 EH patients without significant target organ damage were enrolled as EH group ,while another 92 healthy subjects were regarded as healthy control group .Ratio of morning urinary albumin to creatinine was measured and regarded as UAE index .Plasma homocysteine (Hcy) ,serum uric acid ,creatinine , blood urea nitrogen ,blood glucose ,blood lipids etc .levels were measured ,and compared between two groups Re‐sults:Compared with healthy control group ,there were significant rise in UAE ,body mass index (BMI) ,waist hip ratio ,blood pressure ,pulse pressure ,heart rate ,plasma levels of triglyceride (TG) ,low density lipoprotein choles‐terol (LDL‐C) ,serum uric acid and Hcy (P<0.05 or <0.01) ,and significant reduction in level of high density lip‐oprotein cholesterol (HDL‐C) in EH group ( P=0.001) .Pearson correlation analysis indicated that lgUAE was pos‐itively correlated with lgTG (r=0.257 ,P=0.015) and estimated glomerular filtration rate (eGFR ,r=0.284 ,P=0.007) ,and inversely correlated with lg creatinine (r= -0.277 ,P=0.008) in healthy control group ,while in EH group ,lgUAE was positively correlated BMI (r=0.231 ,P=0.014) ,lgTG (r=0.200 ,P=0.034) and lgHcy (r=0.244 , P=0.009) .Muti-factor gradual regression analysis indicated that lg TG (β=0.265 ,P=0.001) and lg Hcy (β=0.170 , P=0.012) were independently positively correlated with lg UAE , R2 =0.112.Conclusion:UAE level significantly rises in EH patients ,and it′s significantly positively correlated with plasma levels of TG and Hcy .
10.The relevancebetween genetic polymorphismof NR3C1andaggressive behavior in Yunnan Han population
Aiting NIE ; Liping HU ; Yang CHEN ; Hua FU ; Xiufeng ZHANG ; Min RAO ; Wenkai SONG ; Shengjie NIE
Chinese Journal of Forensic Medicine 2017;32(2):145-149
Objective To study the correlation between the polymorphisms of NR3C1 gene and aggressive behavior in Yunnan Han population.Methods Five SNPs of the NR3C1 gene (rs6190,rs6191,rs6198,rs41423247 and rs56149945) were genotyped in 194 unrelated prisoners who committed violent-crimes and 301 healthy controls using improved Multiplex-ligase-detection reaction(iMLDR) method,and the data were statistically analyzed with the SPSS19.0soflware and PHASE2.1platform.Results Single locus analysis showed that the allelic distribution of rs6191and rs41423247did not show significant differencesbetween the control groupand the aggressive-behavior group as well as the robbery sub-group and intentional injury sub-group.However,significant difference was foundin the rs41423247 genotype distribution betweencontrol groupand robbery sub-group (p=0.048).In addition,there were no significant differences for the four haplotypes between the control group,the attack group,the robbery subgroup and the intentional injury subgroup.Conclusion These findings indicate that rs41423247 polymorphism of the NR3C1gene might play a role in susceptibility to aggressive behavior and rs6191 polymorphismmay not be correlated withaggressive behavior.