1.Application value of Doppler ultrasound in early active axial spondyloarthropathy
Chinese Journal of Medical Imaging Technology 2017;33(8):1256-1259
Objective s To investigate the value of Doppler ultrasound in diagnosing active sacroiliitis of axial spondyloarthropathy (axSpA) patients.Methods The Doppler ultrasound and MRI data of 51 patients with early axSpA was retrospectively analyzed.According to MRI results,axSpA patients were divided into active sacroiliitis (active group) and inactive sacroiliitis (inactive group).The color flow display and blood flow resistance index (RI) were compared.Considering MRI as the diagnostic standard,ROC curve was used to evaluate the diagnostic efficacy of RI in detecting active sacroiliitis.Results There were 32 cases wth 58 joints (6 cases were single active sacroiliitis) in activity group and 19 cases with 38 joints in inactivity group.The flow signals demonstration rate of sacroiliac joint in activity group (51/58,87.93%) was higher than that in inactive group (26/38,68.42%;x2 =5.505,P=0.019).There was no statistical difference of the indegree of blood flow between the two groups (Z=-1.93,P=0.053).RI in active group (0.59±0.08) was lower than that in inactive group (0.71±0.09;t=-6.04;P<0.001).Taking RI=0.64 for diagnosis of active sacoriliitis in axSpA patients,the sensitivity,specificity and accuracy rate were 80.8%,74.5% and 78.7%,respectively.Conclusion Through observing abnormal blood flow signals around and internal the sacroiliac joints,ultrasonography can response active sacroiliitis in axSpA patients with higher accuracy.
2.Indirect Determination of Total Hardness in Drinking Water by ICP-AES
Journal of Environment and Health 1992;0(05):-
0.999 5), RSD were no more than 3.0%. The recovery rates were 98.0%-102.0%. There was no significant difference between the results of this method and EDTA-Na2 titration. Conclusion The method is rapid, accurate, simple, little disturbance and is acceptable in determination of total hardness in drinking water.
3.Progress in studies on TLR4 signaling pathway and major depressive disorder
Journal of Central South University(Medical Sciences) 2017;42(6):725-729
TLR4 signaling pathway plays an important role in regulation of the innate immune response and the adaptive immune response.Studies have shown that TLR4 signaling pathway is closely associated with the immune inflammatory process in major depressive disorder,but the underlying mechanisms are not clear.The pathophysiological process of depression involves multiple molecule mechanisms and signal pathways.The change of TLR4 signaling pathways exists in the peripheral circulation system or the central nervous system of depressive patients and depression animal models.The activation of TLR4 signaling pathways is associated with stress-inflammation-depression approach and leaky gut hypothesis,however,the relationship of peripheral and central TLR4 signaling pathways is not clear yet.TLR4 signaling pathway may be potential targets for the anti-inflammatory treatment of depression.
5.Theefficacy of of nimodipine combined with gangliosides in the treatment of cerebral hemorrhage and its effects on the expression of serum resistin and oxidized low-density lipoprotein
Chinese Journal of Postgraduates of Medicine 2021;44(4):317-321
Objective:To explore the efficacy of nimodipine combined with ganglioside in the treatment of cerebral hemorrhage and its effect on the expression of serum resistin and oxidized low-density lipoprotein (ox-LDL).Methods:According to the random number table method, 100 patients with cerebral hemorrhage admitted in Central Hospital of Zibo from February 2018 to February 2020 were divided into the single treatment group and the combined treatment group, with 50 cases in each group. In addition to conventional treatment, the single treatment group was additionally treated with nimodipine, and the combined group was additionally treated with nimodipine combined with ganglioside. After 2 weeks of intervention, the efficacy of the two groups was evaluated, and the National Institutes of Health Stroke Scale (NIHSS) scores, Ability of Daily Living (ADL) scores, serum inflammatory factors, resistin and ox-LDL levels were evaluated and recorded between the two groups before and after treatment.Results:The total effective rate of treatment in the combined treatment group was higher than that in the single treatment group: 90.0%(45/50) vs. 74.0%(37/50), and the difference was statistically difference ( P<0.05). After 2 weeks′ treatment, the scores of NIHSS was decreased and the scores of ADL was increased in two groups, and the scores of NIHSS in combined treatment group was lower than that in the single treatment group: (9.41 ± 1.27) scores vs. (12.10 ± 1.65) scores; the scores of ADL in the combined treatment group was higher than that in the single treatment group: (67.82 ± 9.04) scores vs. (59.10 ± 8.75) scores, and the differences were statistically differences ( P<0.05). After 2 weeks′ treatment, the levels of serum high-sensitivity C-reactive protein (hs-CRP), interleukin-6(IL-6), tumor necrosis factor-α(TNF-α), resistin and ox-LDL in the two groups were decreased, and the levels of above index in the combined treatment group were lower than those in the single treatment group: (4.81 ± 1.03) mg/L vs. (6.10 ± 1.73) mg/L, (40.96 ± 9.21) μg/L vs. (56.74 ± 8.93) μg/L, (33.20 ± 7.96) μg/L vs. (44.76 ± 8.43) μg/L, (0.29 ± 0.09) μg/L vs. (0.45 ± 0.13) μg/L, (336.25 ± 69.74) mg/L vs. (372.18 ± 68.52) mg/L, and the differences were statistically differences ( P<0.05). There was no significant difference in adverse reactions between the two groups ( P<0.05). Conclusions:Nimodipine combined with ganglioside has a clear efficacy in the treatment of cerebral hemorrhage. It can effectively inhibit inflammation indicators, reduce serum resistin and ox-LDL levels, promote the recovery of nerve defects, and improve their living ability.
6.Influence of Aiweixin Liquid on cardiocyte apoptosis of myocardial ischemia-reperfusion injury in rats
Weifeng CHEN ; Lu WANG ; Rui WANG
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(11):-
Objective: To explore the influence of Aiweixin on cardiocyte apoptosis of myocardial ischemia-reperfusion injury in rats. Methods: Thirty male Wistar rats, 200-250g weight, were divided into 3 groups randomly: sham-operation group, Ischemia-reperfusion injury group (I/R) and Aiweixin preconditioning group, each group had 10 rats. The model of myocardial ischemia-reperfusion injury was established. The protein expressions of Bcl-2, Bax and Caspase-3 were studied by Immunohistch emicalstaining. Results:The protein expressions of Bax and Caspase-3 increased and Bcl-2 decreased signifi cantly (P
7.Measurement of ABO blood group antibody levels using renal cortical tubular epithelial cells of cynomolgus monkey
Lu WANG ; Junxiang WANG ; Xiaoxiao WANG ; Song CHEN ; Gang CHEN
Chinese Journal of Organ Transplantation 2014;35(5):300-305
Objective To investigate the possibility of measuring ABO blood group antibody levels using renal cortical tubular epithelial cells (RCTECs) of cynomolgus monkey.Method The primary RCTECs were isolated from cynomolgus monkey kidneys and identified by Western blotting and flow cytometry (FACS).FACS was applied to detect the expression of ABO histo-blood group antigens on RCTECs,the binding of blood group antibodies in human serum to RCTECs,and to compare the difference of measuring ABO blood group antibody levels between using human erythrocytes and RCTECs as target cells.Result The majority of cells derived from the kidney cortex were renal tubular epithelial cells.39.90%-73.80% of RCTECs were found to express the ABO histoblood group antigens with the capability to bind the human blood group antibodies specifically.The expression level of ABO histo-blood group antigen on RCTECs was not influenced by long-term cryopreservation,and the percentage of B antigen positive cells was 39.90% before frozen storage and 39.65% after a 10-month cryopreservation respectively.The normal serum and allergic serum presensitized to synthetic A antigen-keyhole limpet hemocyanin (KLH-A) of cynomolgus monkey were used to compare the abilities of RCTECs and human erythrocytes to detect antibody titers.No agglutination was observed in RCTECs test group.The mean fluorescence intensity (MFI) values of antibody were highest when the dilution fold was lowest (1 ∶ 16) and gradually decreased with increased serum dilution in both serum groups.MFI fell towards baseline value at 1 ∶ 128 dilution in normal serum group while at 1∶8 192 dilution in allergic serum group.Between 1 ∶ 16 and 1∶8 192 dilutions,MFIs of normal serum group were all lower than those of allergic serum.In human red cells test group,obvious agglutination appeared at high concentrations of antibodies,and MFIs reached the peak at 1∶64 dilution in normal serum group and at 1∶32 dilution in allergic serum group,but fluctuated irregularly thereafter.Between 1∶64 and 1∶512 dilutions,MFIs of normal serum group were all higher than those of allergic serum.Data above showed that MFI values in RCTECs group could reflect the levels of blood group antibodies more exactly.Conclusion The RCTECs of cynomolgus monkey express ABO tissue-blood group antigens and would be more suitable to be used to measure ABO blood group antibody levels by FACS.
8.Experimental study of the influence of Sini decoction on the inflammatory response and the immune function in septic rats
Mingqi CHEN ; Jun LU ; Lu CHENG ; Hai LYU ; Xing WANG
Chinese Critical Care Medicine 2014;26(3):188-192
Objective To observe the effect of Sini decoction on inflammatory response and immune function in septic rats and to discuss its possible mechanism.Methods 66 Sprague-Dawley (SD) rats were randomly divided into normal control group (n=6),model group (n=30),and Sini decoction group (n=30).Septic model was reproduced by intraperitoneal injection of lipopolysaccharide (LPS,5 mg/kg).After the reproduction of sepsis,rats in Sini decoction group received Sini decoction (5 g/kg) by gavage,while those in model group were given equal dose of normal saline in the same way.Rats in normal control group did not receive any treatment.Blood was collected via eye sockets at 2,12,24,48,72 hours after LPS administration,then the rats were sacrificed.The concentrations of inflammatory mediators,such as interleukin (IL-1,IL-6,IL-10),tumor necrosis factor-α (TNF-α),and the expression level of monocyte human leukocyte antigen-DR (HLA-DR) were determined with enzyme linked immunosorbent assay (ELISA),and the pathological changes in intestinal mucosa were observed under electron microscope.Results The concentration of IL-1 (ng/L) at 2 hours in model group was gradually increased and peaked at 48 hours (4.07 ± 0.10),and then gradually decreased,while the IL-1 level in Sini decoction group peaked at 12 hours (2.98 ± 0.12) followed by a gradual decrease.IL-6 (ng/L) in model and Sini decoction groups peaked twice at 12 hours (91.39 ± 1.55,73.00 ± 2.38) and 48 hours (82.51 ± 1.49,64.68 ± 1.68) respectively.IL-10 (ng/L) in model group gradually decreased after peaking at 2 hours (86.66 ± 6.12),and that in Sini decoction decreased at 12 hours (71.61 ± 2.35) followed by an increasing tendency,and approached normal level at 48 hours (109.09 ±4.77 vs.124.01 ± 7.89,P>0.05).TNF-α (ng/L) in model group was gradually increased and peaked at 48 hours (83.37 ±3.79),and that in Sini decoction peaked at 12 hours (48.52 ± 1.21),and decreased to normal level at 72 hours (18.59 ± 1.97 vs.15.50 ± 2.68,P>0.05).During the course of the experiment,as compared with those of the model group,level of IL-1,IL-6,and TNF-α were significantly lower at all time points in Sini decoction group,and IL-10was significantly higher.The expression level of HLA-DR (μg/L) in model and Sini decoction groups peaked at 2 hours (4.86 ± 0.15,4.85 ± 0.17),and then gradually lowered.HLA-DR expression μg/L) at 48 hours and 72 hours in Sini decoction group was significantly lower than that in model group (48 hours:4.21 ± 0.12 vs.2.74 ± 0.16,72 hours:3.80 ± 0.09 vs.2.27 ± 0.12,both P<0.01).Pathological study of intestinal mucosa showed that the intestinal mucosa were infiltrated significandy by inflammatory cells,and villi were damaged severely in both model group and Sini decoction group at 2 hours after LPS challenge.Infiltration of inflammatory cells in Sini decoction group was less intense after 12 hours,and the intestine villi repair was more obvious compared with model group.Conclusion Sini decoction could regulate systemic inflammatory response,and promote the repair of intestinal mucosa,the intestinal function and the immune status of septic rats.
9.Effect of phacoemulsification versus extracapsular cataract extraction in patients with intumescent senile cataract
Zheng WANG ; Yingyi LU ; Guang LU ; Tong CHEN
Chinese Journal of Geriatrics 2014;33(3):290-293
Objective To compare the safety and effect of the phacoemulsification (PHACO) versus extracapsular cataract extraction (ECCE) in patients with intumescent senile cataract.Methods 200 eyes from patients with intumescent cataract were included and randomly divided into 2 groups:PE group (108 eyes,received PHACO) and ECCE group (92 eyes,received small incision ECCE) respectively.Superior quadrant sclera tunnel incisions were made with stabs of 2.8 mm diameters.Trypan-blue was used to show the anterior lens capsular membrane.In the PHACO group,a 4 mm diameters continuous curvilinear capsulorhexis (CCC) was made,which was enlarged to 6-7 mm after the intraocular lenses (IOL) implantation.For the ECCE group,a 8 mm-diameter CCC was made.Then the lens nucleus was either phacoemulsificated or delivered and IOL was implanted.The complications during and after surgery and the visual outcomes were recorded and statistically analyzed by SPSS 13.0 software.Results Age,sex and the hardness of the nucleus were comparable between the two groups.The best corrected vision acuity (BCVA) was 0.05 and worse in all patients before surgery.While 3 days after operation,in PE group,105 eyes (97.2%,105/108) gained postoperative vision 0.05 and better,and 82 of them were better than 0.3; in group ECCE,97.2% (89/92) of the operated eyes gained vision 0.05 and better,72 (78.3%,72/92) eyes were better than 0.3.No statistical differences were found between the two groups in postoperative vision recovery.While,there were more failure rates of the CCC,tear of the anterior and posterior capsular,loss of the vitreous and iris injury rate in the ECCE group than in the PE group (20.7% vs.8.3%,17.4% vs.12.0%,7.6% vs.0.9%,15.2% vs.0%,P=0.01,P=0.00,P=0.02,P< 0.001).Prolapse of iris and discoria were found in ECCE group.Conclusions With small CCC,phacoemulsification can lead to better surgical outcomes than small incision ECCE procedures,and the operative and post-operative complications are less in PE group than in ECCE group.
10.Expression of Tim-3 and its relationship with Th17/Treg cytokine in the peripheral blood and airway in asthmatic murine
Yanli WANG ; Xiaoxia LU ; Peng CHEN ; Hebin CHEN ; Ying WANG
The Journal of Practical Medicine 2015;(7):1095-1098
Objective To detect the expression of T cell immunoglobulin mucin 3 (Tim-3) and its relationship with Th17/Treg cytokine isolated from peripheral blood mononuclear cells (PBMCs) and broncho-alveolar lavage fluids (BALF) cells in the asthmatic murine model and to investigate the role of Tim-3 in the occurrence and development of the asthmatic inflammation. Methods The asthmatic murine model was established by the method of ovalbumin (OVA) injection and inhalation. The mice were randomly divided into 2 groups: the normal control and the asthma group. PBMCs and BALF cells in each group were collected. Expression of Tim-3 mRNA was detected by the real-time PCR assay. Levels of CD4+IL-17+ and CD4+CD25+FoxP3+, reflecting expressions of Th17 and Treg respectively , were detected by flow cytometry. The correlationbetween Tim-3 and Th17/Treg level was analyzed. Results Contrast with the normal control group, the expression of Tim-3 mRNA in PBMCs and BALF cells in the asthma group increased significantly (P < 0.01). OVA sensitization and challenges resulted in the increased CD4+IL-17 production and the decreased CD4+CD25+Foxp3+in PBMCs and BALF cells compared with those in the normal control group (both P < 0.05). The ratio of Th17/Treg significantly increased in asthma group (P < 0.05). Tim-3 mRNA expression in PBMCs and BALF cells was positively correlated with CD4+IL-17+ level and Th17/Treg ratio , respectively , and was negatively correlated with CD4+CD25+Foxp3+ level. Conclusions Tim-3 mRNA level in PBMCs and BALF cells in the asthma group was increased , indicating that Tim-3 might take part in the occurrence and development of asthmatic inflammation and has a very close relationship with the Th17/Treg imbalance.