1.Suppressive effects of hydroxytyrosol on oxidative stress of THP-1 cells stimulated by LPS
Xiaomei ZHANG ; Lin LIU ; Laifu ZHONG
Chinese Journal of Immunology 2000;0(09):-
Objective:To investigate whether hydroxytyrosol (HT) may ameliorate oxidative stress and nuclear factor kappa B (NF-?B) activation in the lipopolysaccharide (LPS)-stimulated THP-1 cell line.Methods:The intracellular formation of reactive oxygen species (ROS) was detected by 2,7-dichlorofluorescein diacetate (DCFH-DA) as a fluorescent probe.Intracellular glutathione (GSH) level was estimated by fluorometric methods;Nitric oxide (NO) production was measured as nitrite (a stable metabolite of NO) concentrations.Western blot analysis was used to detect the expressin level of NF-?B.Results:The results showed that treatment of THP-1 cells with HT significantly reduced LPS-stimulated NO production and ROS formation in a concentration-dependent manner.HT at 50 and 100 ?mol/L concentrations increased the GSH level.The specific DNA-binding activities of NF-?B in nuclear extracts from 50 and 100 ?mol/L HT treatments were significantly suppressed.The antioxidant N-acetylcysteine (NAC) also showed the same effects as HT on LPS-induced ROS and NO production,change of GSH level,and NF-?B activation.Conclusion:These findings suggest that HT has antioxidant activity by suppressing intracellular oxidative stress and NF-?B activation in THP-1 cells.
2.Nursing of patients with intractable postpartum hemorrhage undergoing interventional treatment
Yingjing LIU ; Huihong ZHONG ; Ping LIN
Chinese Journal of Practical Nursing 2012;28(20):48-49
Objective To investigate the effect of nursing intervention in interventional treatment of patients With intractable postpartum hemorrhage.Methods 90 patients with intractable postpartum hemorrhage in our hospital from May 2008 to May 2011 adopted interventional treatment approach.They were divided into the control group and the observation group with 45 patients in each group.The control group received routine care,while the observation group received pertinent nursing.The treatment effect was compared between two groups.Results The mean operation time,hemostasis time,hospitalization time were significantly shorter than those of the contrtol group.The cure rate was sigrnificantly better than the control group.No serious complications occurred.Conclusions During interventional treatment for patients with intractable postpartum hemorrhage,pertinent nursing can reduce the incidence of complications,stop bleeding quickly and safely,keep the uterus and its physiological function.It can obtain satisfactory results and improve life quality of patients.
3.Influence of nursing intervention on medication compliance of patients with climacteric dysfunctional uterine bleeding
Yingjing LIU ; Huihong ZHONG ; Ping LIN
Chinese Journal of Practical Nursing 2012;28(15):33-34
ObjectiveTo investigate the effect of nursing intervention on medication compliance of patients with climacteric dysfunctional uterine bleeding. Methods84 patients with climacteric dysfunctional uterine bleeding in our hospital from April 2009 to April 2011 were treated,they were randomly divided into the control group and the observation group with 42 cases in each group.The control group was given routine care during the course of medication,the observation group was given pertinent nursing intervention based on the routine nursing.The medication compliance and treatment effect were retrospectively analyzed. ResultsAmong 42 cases in the observation group,40 cases (95.2%) followed the doctor's advice,41 cases (97.6%) visited on time,3 cases (7.1%) failed the treatment.In the control group,30 cases (71.4%) followed the doctor's advice,25 cases(59.5%) visited on time,14 cases(33.3%) failed the treatment.The observation group was better than the control group. ConclusionsHormone treatment for patients with climacteric dysfunctional uterine bleeding can obtain desired therapeutic effect,but method of medication was more complicated.Nursing intervention during medication course can significantly improve medication compliance and treatment effect,which is of great clinical significance.
4.Comparison belween diagnostic peritoneal lavage,CT scanning and ultrasonography in diagnosis of blunt abdominal trauma
Yinghong YANG ; Zhong LIU ; Zongyi LIN ;
Chinese Journal of General Surgery 2000;0(12):-
Objective To compare the accuracy of diagnostic peritoneal lavage (DPL),abdominal computed tomographic(CT) scanning,and abdominal B ultrasound for the diagnosis of blunt abdominal trauma. Methods Prospective study was made on 61 hemodynamically stable abdominal injury patients.The patients received both CT and B ultrasound before DPL ,A laparotomy was done on the condition that one of the three examinations had positive finding.The surgical findings were compared with that of the diagnostic studies. Results The sensitivity,specificity and accuracy were 97.4%,81.7% and 91.8% for DPL; 97.3% 91.3% ,and 95.1% for CT;and 92.3%,90.9% and 91.8% for B ultrasound.Although the sesitivity,specificity,and accuracy of B ultrasound in the diagnosis of blunt abdominal trauma were similar to DPL and CT, B ultrasound had more advantages than DPL and CT. Conclusions B ultrasound can replace DPL.CT as a supplementary method in the diagnosis of blunt abdominal trauma.
6.Study on colonic H2 S-producing enzyme CSE and colonic motility in diabetes mellitus
Qin WANG ; Ying LIU ; Zhong LIN ; Zehui DUAN
Chongqing Medicine 2016;45(11):1463-1466
Objective To investigate the relationsheep between colonic H2 S‐producing enzyme cystathionine‐γ‐lyase(CSE) and colonic motility in a rat model of diabetes mellitus(DM) .Methods To obtained diabetic rat models ,all rats were injected intra‐peritoneally (ip) 1% streptozotocin (STZ ,65 mg/kg) ,type 1 diabetes model was established ,nornmol conditions were observed pe‐riodically .Ten days after treatment ,production of colonic longitudinal smooth muscle strips ,organ bath recordings were used to test the colonic motility ;immunofluorescence and double immunofluorescence lableling method were performed to detect the distribution of CSE;Western blot were performed on rat colonic samples devoid of mucosa and submucosa to detect the expression of CSE .Re‐sults DM rats decreased the colonic motility(P<0 .05);CSE was strongly expressed in the cytosols of the circular and longitudinal smooth muscle cells and the nucleus of the myenteric plexus neurons ;CSE distributed in myenteric neurons in the nucleus of rat ,but the proportion of MP had no difference (P>0 .05);DM rats increased the expression of CSE in the colon devoid of mucosa and sub‐mucosa(P<0 .05) .Conclusion The decrease of colonic motility in diabetic rat may be associated with the increased production of H2 S‐producing enzyme CSE .
7.Studies on Extraction of Icariin in Herba Epimedii
Liu YANG ; Jingxian ZHONG ; Qiaolin LIN ; Peishan XIE ; Haiyan HUANG
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(04):-
Objective To optimize the extraction process for icariin from Herba Epimedii. Methods The content of icariin in the extracts obtained by different extraction methods was determined with HPLC. The effect of solvents, boiling time, extracting time and temperature, and the size of the medicinal powder was observed. Results Different extraction methods had great influence on the extraction rate of icariin. Conclusion This research can provide evidence for the extraction of active component from Herba Epimedii in industrial production.
8.Preparation and Quality Control of Loxoprofen Sodium Patches
Manman HU ; Jinlai LIU ; Xiaohui LI ; Zhong LIN
China Pharmacist 2014;(5):755-757
Objective:To study the preparation and quality control of loxoprofen sodium patches and develop an HPLC method for the determination of loxoprofen sodium. Methods:Loxoprofen sodium patches were prepared with CMC-Na and PVP as the adjuvants, and an HPLC method was used to determine the content of loxoprofen sodium. Results:The linear range of loxoprofen sodium was 4-24μg·ml-1(r=0. 999 7), the average recovery was 99. 99%(RSD=0. 99%, n=6). Conclusion:The preparation method is reason-able, simple and stable. The developed HPLC method is specific to determine the content of loxoprofen.
9.Injecting Kanseran into Tumor Mass via Fibrobronchoscope in Combination with Chemotherapy for Treatment of Advanced Non-small-cell Lung Cancer
Jie TAN ; Zhong LIN ; Shuhua ZHUANG ; Yi SHANG ; Kuifeng LIU
Herald of Medicine 2001;(2):108-109
Objective:To observe the therapeutic effect and toxicity of local Kanseran injection in combination with chemotherapy in advanced NSCLC patients.Methods:A total of 18 cases was recruited in this study. After desensitization,Kanseran injection was injected into tumor mass through fibrobronchoscope,2 mg every time,once per week. Meanwhile,MVP regimen was administered.Results:Of the 18 patients,1 was completely relieved,7 cases were partially relieved. The response rate was 44.4%. After treatment,when examined by fibrobronchoscope the tumor masses of 15 patients became smaller. The main side effects were fever,alopecia and gastrointestinal reaction,which were mild and tolerable.Conclusion:Local Kanseran injection into tumor mass in conjunction with chemotherapy is effective and safe in the treatment of advanced NSCLC patients with bronchus obstruction.
10.Inhibition of peroxiredoxin Ⅱ on human intervertebral disc cells cultured in vitro
Yulin LIU ; Chusong ZHOU ; Zhong CHEN ; Ping LUO ; Lijun LIN
Chinese Journal of Tissue Engineering Research 2010;14(11):1915-1918
BACKGROUND:intervertebral disc degeneration can reduce nucleus pulposus cells,and peroxiredoxin II involved in the regulation of resist oxidation damage,cell division,differentiation,signal transduction and apoptosis.Peroxiredoxin Ⅱ has promotive effect on intervertebral disc degeneration,whereas the mechanism remains poorly understood.OBJECTIVE:To observe the effects of perexiredoxin Ⅱ on human intevertebral disc cells activity and type Ⅱ collagen synthesis in vitro.METHODS:Human degenerated human lumbar disc cells were cultured in vitro,and assigned into the control and peroxidase Ⅱ groups.Peroxidase Ⅱ with doses of 10,100 and 1 000 ng/L were added into the peroxidase Ⅱ groups.The cells were identified by immunohistochemical staining,and the cell proliferation was detected using cck-8 kit.Cell supematant was collected at days 3 and 7 after operation,and the expression of type Ⅱ collagen was measured by double-antibody sandwich enzyme-linked immunosorbent assay.RESULTS AND CONCLUSION:In vitro cultured human degenerative lumbar intervertebral disc nucleus pulposus cells by adding peroxidase increased with the dose-Ⅱ,the disc nucleus pulposus cells of the volume and type Ⅱ collagen synthesis gradually reduced(P < 0.01).Tips peroxidase Ⅱ on the intervertebral disc nucleus pulposus cells,the number and type Ⅱ collagen synthesis significantly inhibited in a dose-dependent manner.Thus speculated that peroxidase Ⅱ on the nucleus pulposus cells in vitro may lead to disc degeneration as a precipitating factor.