1.Neuroprotective roles of early exercise training after stroke
Liqiang YANG ; Xin GUAN ; Yiling NI ; Pengyue ZHANG
International Journal of Cerebrovascular Diseases 2016;24(2):187-192
Early exercise training after stroke is a therapeutic strategy that has been paid w idespread attention. A series of studies found that early exercise training after stroke can increase expression of neurotrophic factors and maintain the integrity of the blood-brain barrier by inhibiting acute neuroinflammation and apoptosis, and reduce brain damage. This artice reviews the neuroprotective roles of early exercise training after stroke and their possible molecular mechanisms.
2.Observation on curative effect of pulse-radiofrequency combined with epiduralspace block in cervicogenic headache
Wei YAN ; Liqiang YANG ; Yuna GUO ; Baishan WU ; Jiaxiang NI
Chongqing Medicine 2017;46(12):1621-1623
Objective To observe the curative effect of cervicogenic headache(CEH)treatment through the combination of pulse radio frequency(PRF)on the C2 dorsal rootganglion and continuous epidural space block.Methods Sixty patients with CEH in our hospital were randomly divided into groups A and B,30 cases in each group.The group A was treated with combination of PRF on cervical dorsal root ganglion and continuous epidural space block.The group B was treated with PRF on cervical dorsal root ganglion method.The pain VAS scores before treatment and at 1 week,3,6 months after treatment were compared between the two groups.Results Compared with pretreatment,the VSA scores at 1 week,3,6 wonths after treatment in the two groups had statistical difference(P<0.05),moreover,the VAS score decrease in the group A was better than the group B.All the patients had no nerve and artery injury or infection complications.Conclusion It is safe and effective to treat cervical CEH through the combination of ganglion PRF on the cervical 2 dorsal root and continuous epidural space block.
3.Protective and therapeutic effects of Shugan Lifei Recipe on rats with asthma under stress and the mechanisms
Yao TONG ; Ningxia ZHANG ; Huijuan CHEN ; Liqiang NI
Journal of Integrative Medicine 2005;3(5):391-6
OBJECTIVE: To explore the influence of psychological factor on asthma, the protective and therapeutic effects of Shugan Lifei Recipe on rats with asthma under stress and the mechanisms. METHODS: Allergy and stress-induced asthma models were established in rats by giving ovalbumin and restraining stress. Radioimmunoassay, enzyme linked immunosorbent assay, in situ hybridization and immunohistochemical method were used to detect plasma corticosterone, IL-4, IFN-gamma, expression of glucocorticoid receptor (GR) mRNA in hippocampus and adrenocorticotropic hormone corticoliberin (CRH) positive neuron in hypothalamus. Optical and electron microscopes were used to observe the morphological changes of pulmonary hilar and hippocampal tissues. RESULTS: Shugan Lifei Recipe (SGLFR) could reduce plasma corticosterone, decrease CRH positive neurons in paraventricular nucleus of hypothalamus, up-regulate the expression of GR mRNA in hippocampus and reduce the injury of hippocampal neuron. SGLFR had certain inhibitive effect on hyperfunction of hypothalamo-pituitary-adrenal cortex (HPA) axis in rats with asthma under stress and could also relieve the pathological changes of the pulmonary hilar tissue. The level of plasma IFN-gamma was increased while the level of plasma IL-4 was decreased in SGLFR-treated group. CONCLUSION: The mechanism of SGLFR in treating the rats with asthma under stress is probably to regulate the hyperfunction of HPA axis and the disorder of immuo-system.
4.Comparing the differences between domestic and imported EIA-HIV screening results for voluntary blood donors
Liqiang XU ; Xiuwen NI ; Jianhua LI ; Jianqi SUN ; Huina MAO
Chinese Journal of Blood Transfusion 2017;30(7):813-815
Objective To compare the differences of two kinds of EIA reagents for HIV-1/2 (Ab/Ag) screening results of voluntary blood donors,in addition to find out the feasibility of reducing 1 times of EIA detection.Methods To collect data of HIV 1/2 screening positive results and confirmatory test for voluntary blood donors from 2009 to 2014 in Jiaxing area,and to compare the relationship of screeing test results with that of the confirmatory test,and then to analyze the relevance between S/CO values of screening test and confirmatory test.Results Screening positive rates of domestic and imported reagents,which were 9.58/10 000 and 12.43/10 000,respectively;and the confirmatory coincidence rates were 11.84% and 9.12%,respectively.There was no significant difference (x2 =1.11,P>0.05).The double-reagent joint detection positive rate was 1.37/10 000,and its positive predictive value was 82.86%.Single-reagent test result compared with that of double-reagent test,which had significant differences (x2domestic =94.04,P<0.05 and x2ximported =124.86,P<0.05).When the S/CO value was more than 6,domestic and imported reagents positive predictive values were 93.55% (29/31) and 87.50% (28/32),respectively.Conclusion There is no difference between domestic and imported reagents EIA-HIV1/2.
5.Percutaneous radiofrequency thermocoagulation for the treatment of different types of trigeminal neuralgia: Evaluation of quality of life and outcomes.
Yizhong, HUANG ; Jiaxiang, NI ; Baishan, WU ; Mingwei, HE ; Liqiang, YANG ; Qi, WANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2010;30(3):403-7
Radiofrequency thermocoagulation (RFT) of the gasserian ganglion is a routine and effective technique for the treatment of classical trigeminal neuralgia (CTN). In this study we compared its efficacy in patients with CTN and atypically symptomatic or mixed trigeminal neuralgia (MTN). Fifty-seven patients were treated with RFT for trigeminal neuralgia from June 2006 to February 2009. Thirty patients had CTN, and 27 had MTN. Outcomes were measured by using the visual analog pain scale (VAS) and patients' reports of quality of life (QOL), medication usage, and complications over a follow-up period of up to 3 years. Our results showed that the patients with MTN were younger, tended to have bilaterial involvement of the first division, and were unresponsive to treatment. All surgeries were completed smoothly. About 86.7% CTN patients and 48.1% MTN patients responded immediately to RFT. The VAS scores were significantly higher in the CTN group than in MTN group (P<0.05). Kaplan-Meier curves showed that 1-year, 2-year, and 3-year pain relief rates were 76.7%, 73.3%, and 73.3% in the CTN group and 46.6%, 41.4%, and 41.4% in the MTN group, respectively. The rates of pain relief for both groups leveled off at 2 years. Complications included numbness, dysesthesia, and anesthesia dolorosa. RFT did not cause any deaths and complications were low. The treatment was very effective for CTN and, to some degrees, effective for MTN. If numbness, dysesthesia, and anesthesia dolorosa are limited to the trigger area, QOL will be greatly improved.
6.Effects of VDUP1 on proliferation and migration of human breast cancer MCF-7 cells
Jianhua LI ; Liqiang XU ; Xiuwen NI ; Yayun SUN ; Huina MAO ; Jinhui WU
Chinese Journal of Pathophysiology 2017;33(6):1060-1064
AIM:To investigate the effect of vitamin D3 up-regulated protein 1 (VDUP1) gene over-expression/knockdown on the proliferation and migration of human breast cancer MCF-7 cells and its related mechanisms.METHODS:Gene over-expression/interference techniques were used to up-regulate/down-regulate the expression of VDUP1 in the MCF-7 cells.The mRNA expression of VDUP1 was detected by qPCR.CCK-8, BrdU and Transwell assays were used to measure the cell viability, proliferation and migration, respectively.The protein levels of Akt, p-Akt, GSK3β and p-GSK3β were determined by Western blot.RESULTS:The mRNA expression of VDUP1 was up-regulated after transfection with VDUP1 over-expression plasmid (P<0.05), and down-regulated after transfection with VDUP1 siRNA (P<0.05).Over-expression of VDUP1 significantly inhibited MCF-7 cell proliferation and migration (P<0.05), while knockdown of VDUP1 enhanced cell proliferation and migration (P<0.05).Furthermore, over-expression of VDUP1 up-regulated the protein levels of p-Akt and p-GSK3β (P<0.05).Inverse results were obtained after knockdown of VDUP1.CONCLUSION:The viability and migration ability of MCF-7 cells are inhibited by over-expression of VDUP1 but enhanced by VDUP1 knockdown, which may be related with Akt/GSK3β pathway.
7.Serological and virological epidemiology characterization of occult hepatitis B virus infection in Jiaxing volunteer blood donors
Xiuwen NI ; Liqiang XU ; Jianhua LI ; Yayun SUN ; Huina MAO ; Jinhui WU
Chinese Journal of Blood Transfusion 2017;30(7):780-784
Objective To research and analyze serological and virological epidemiology charactererization of occult hepatitis B virus infection in Jiaxing volunteer blood donors.Methods 52 698 samples were screened by ELISA(HBsAg、antiHCV 、anti-HIV、anti-TP) and Nucleic acid amplification technique(NAT),then NAT positive samples were further identified to detect virus type.HBsAg-/HBV-DNA+ samples were collected in three different kinds of qualitative HBsAg detection of ELISA kit.The quantitative determination of HBsAg and anti-HBs were used by chemiluminescencemethod.At the same time,real-time fluorescence quantitative PCR (QPCR) was used to measure the viral load of HBV.Further analysis and study on the serological and virological distribution of OBI combined with five markers of hepatitis B virus (HBV),with tracing general epidemiological data (sex,age and age).Results The prevalence rate of OBI was 0.89‰ (1 ∶ 1 121) in all donors with OBI infection,and 2 cases of window period (WP) were found in 52698 donors (1 ∶ 26 349).The results of HBsAg and HBeAg were negative in 49 HBsAg-/HBV-DNA+ samples,and 6OBI serological profiles were found.Anti-HBs quantitative concentration(>100 mIU/mL)accounted for 27.66% (13/47),while anti-HBc+ positive rate was 91.49% (43/47).HBV-DNA nucleic acid quantitative ranged from 4.10 to 1.82× 103(IU/mL) (median of 15.83),whereas HBsAg+/HBV-DNA+positive viral load was in the range of 61.47 to 1.28× 104(IU/mL) (median of 538.15).The difference was significant in viral load between experiment group and control group(P<0.05).Male donors of more than 40 years were higher in prevalence rate of OBI infection (P<0.05),meanwhile there was a significant difference in OBI infection rate between repeated blood donors and fnrst blood donors(0.01<P<0.05).Conclusion The viral load was low in OBI infected donors,and anti-HBc+ was the main manifestation.NAT had the ability to detect OBI,shorten the window period,and contributed to ensure the safety of clinical blood.
8. Application of ELISA combined with nucleic acid testing for blood screening and residual risk analysis in blood donors
Liqiang XU ; Jianhua LI ; Xiuwen NI ; Yayun SUN ; Jinhui WU ; Huina MAO
Chinese Journal of Experimental and Clinical Virology 2018;32(4):407-410
Objective:
To analyze the residual risk of transfusion transmitted hepatitis B virus (HBV) infection by enzyme-linked immunosorbent assay (ELISA) method in hepatitis B surface antigen (HBsAg) negative blood donors, and to assess the infection status.
Methods:
A total of 45551 samples were collected from blood donors.All samples were tested by 2 different ELISA kids of HBsAg and nucleic acid testing (NAT) individually of hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV). Those ELISA HBsAg negative and NAT single reactive (HBsAg-/HBV DNA+ ) specimens were analyzed by quantitative detection of HBV DNA and by serologic testing of HBV antigen and antibody.
Results:
A total of 44 HBsAg-/HBV DNA+ samples were detected, including 42 occult HBV infections (OBI) and 2 window period infections (WP). The detection rate of OBI rate was 0.90‰, and 32 samples of OBI sample HBV DNA was less than 20 IU/ml, and the OBI detection rate was significantly different between different genders, ages and blood donation times (
9.Effects and mechanisms of fibronectin on adhesion and migration of different types of lung cancer cell lines.
Liqiang SONG ; Yan LI ; Diantao NI ; Haowen QI
Chinese Journal of Lung Cancer 2004;7(2):130-133
BACKGROUNDTo observe and explore the effects and mechanisms of fibronectin (FN) on invasion of different types of lung cancers.
METHODSUsing tumor invasion models in vitro of plates coated with FN and Boyden chambers with FN filter, differences of adhesion and migration between small cell lung cancer cell line (054A) and adenocarcinoma cell line (A549) were investigated, and proliferative effects of FN on cells were examined. In the meantime the invasive capability changes were observed after cell suspensions were preincubated with anti-α5, anti-α3 and anti-β1 integrin antibodies, respectively.
RESULTSFN could improve the adhesion, migration and proliferation of A549 more markedly than that of 054A. The number of adhesive cells in A549 cell line changed from 34.7± 5.1 to 189.4±12.3 with time from 2h to 12h compared with that from 19.8±7.9 to 159.2±11.9 in 054A cell line (P < 0.05 or P < 0.01). A549 cell line had 142.7±5.9 migration cells while 054A cell line had 89.4±4.7 (P < 0.01). FN could improved the proliferation in A549 cell line from 0.250±0.019 to 0.754±0.025 (P < 0.01) in concentration-dependent way, but in 054A from 0.205±0.026 to 0.286±0.029. And these effects were mediated mainly by α3β1 and α5β1 receptors in A549, but α3β1 in 054A.
CONCLUSIONSLung cancers with different origins express so different types and extents of integrin receptors that effects of FN on tumors are various, which is one of important reasons of different invasive capability of lung cancers.
10.Percutaneous Radiofrequency Thermocoagulation for the Treatment of Different Types of Trigeminal Neuralgia: Evaluation of Quality of Life and Outcomes
HUANG YIZHONG ; NI JIAXIANG ; WU BAISHAN ; HE MINGWEI ; YANG LIQIANG ; WANG QI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2010;30(3):403-407
Radiofrequency thermocoagulation(RFT)of the gasserian ganglion is a routine and effective technique for the treatment of classical trigeminal neuralgia(CTN).In this study we compared its efficacy in patients with CTN and atypically symptomatic or mixed trigeminal neuralgia(MTN).Fifty-seven patients were treated with RFT for trigeminal neuralgia from June 2006 to February 2009.Thirty patients had CTN,and 27 had MTN.Outcomes were measured by using the visual analog pain scale(VAS)and patients' reports of quality of life(QOL),medication usage,and complications over a follow-up period of up to 3 years.Our results showed that the patients with MTN were younger,tended to have bilaterial involvement of the first division,and were unresponsive to treatment.All surgeries were completed smoothly.About 86.7% CTN patients and 48.1% MTN patients responded immediately to RFT.The VAS scores were significantly higher in the CTN group than in MTN group(P<0.05).Kaplan-Meier curves showed that 1-year,2-year,and 3-year pain relief rates were 76.7%,73.3%,and 73.3% in the CTN group and 46.6%,41.4%,and 41.4% in the MTN group,respectively.The rates of pain relief for both groups leveled off at 2 years.Complications included numbness,dysesthesia,and anesthesia dolorosa.RFT did not cause any deaths and complications were low.The treatment was very effective for CTN and,to some degrees,effective for MTN.If numbness,dysesthesia,and anesthesia dolorosa are limited to the trigger area,QOL will be greatly improved.