1.Clinical Application and Research Progress of Wrist-ankle Acupuncture
Shanghai Journal of Acupuncture and Moxibustion 2015;(3):277-280
Wrist-ankle acupuncture is a type of special acupuncture therapy, featured by simple operation, swift efficiency, and few adverse effects. In the recent years, ankle-wrist acupuncture has become more and more popularized in clinic. By retrieving the relevant medical literatures from VIP, CNKI, and Wan Fang databases, this manuscript was to analyze the history of wrist-ankle acupuncture and to review it from both mechanism and clinical reports. Meanwhile, this article also pointed out the existing problems in the research of wrist-ankle acupuncture during the recent years, and expected further standardization and studies.
2.Study on the anti-inflammatory effect of proanthocyanidins and its mechanism
Meijun CHEN ; Tong LIANG ; Keyuan ZHOU
International Journal of Laboratory Medicine 2008;29(12):1080-1082,1087
Objective To investigate the anti-inflammatory effect of proanthocyanidins and its mechanisms.Methods Inflammation models such as dimethylbenzene-indueed ear swelling and carrageenan-induced hind paw edema in mice and rats were prepared.The contents of PGE2 in exudate from edema paws of rats were measured by ultraviolet spectrophotography and the protein expression of COX-2 in edema paws of rats by Western-blot and immunohistoehemistry(IHC)assay.Results Pro-anthocyanidins remarkably inhibited the ear edema induced by dimethylbenzene in mice at the dose of10 mg/kg and 20 mg/kg;paw edema of rats induced with carrageenan was significantly inhibited byproanthocyanidins 5,20 mg/kg ip from 2 to 5 h;proanthoeyanidins 5,20 mg/kg ip reduced the contents of PGE2 in exudate from edema paws of rats induced by carrageenan;proanthocyanidins 5,20 mg/kg ip inhibited the protein expression of COX-2.Conclusion Proanthocyanidins has an anti-inflammatory effect in vivo which may be related to inhibition of protein expression of COX-2 and downregutation of PGE2 biosynthesis.
3.Expression changes in fractalkine induced by focal cerebral ischemia and reperfusion in rats
Meijun ZHOU ; Xuejun FAN ; Lina YAN ; Jun ZHOU
Chinese Journal of Geriatrics 2015;34(4):431-433
Objective To investigate the expression changes of fractalkine (FKN)in focal cerebral ischemia and reperfusion penumbra,and to explore its variation law and role in the inflammation of cerebral ischemia-reperfusion injury.Methods The cerebral ischemia reperfusionmodel was established by intraluminal thread occlusion in the middle cerebral arteries occlusion (MCAO).FKN protein expression in focal cerebral ischemia and reperfusion penumbra was detected by immunohistochemistry and Western blot.Results The results of immunohistochemistry stain showed that the chemokine FKN was expressed in a low level in the normal group and the sham operation group,and there were no significant differences among the two groups (P> 0.05).Compared with the humbers of FKN in normal group (37.03± 6.28) in focal cerebral ischemia and reperfusion penumbra,the expression of FKN in model group was increased after 3 h of reperfusion (48.58±7.29) (P<0.05),peaked at 24 h (112.08±8.26) (P<0.05],and then decreased gradually at day 7 after reperfusion,but had no significant difference (40.73 ± 4.02) (P> 0.05).FKN was expressed in a low level in the sham operation group (0.527±0.002),then up-regulated after 3 h of reperfusion [(0.598±0.004),P<0.05],peaked at 24 h [(0.833±0.005),P<0.05],maintained a high level till 48 h after reperfusion [(0.735±0.002),P<0.05],and return to baseline level at day 7 after reperfusion [(0.533±0.004),P>0.05].Conclusions Fractalkine is upregulated after focal cerebral ischemia/reperfusion,and has a dynamical change,which indicates that fractalkine might involve in the inflammatory process after cerebral ischemia-reperfusion injury.
4.Diagnostic value of platelet size indices in thrombocytopenia
Woming RAO ; Jian WANG ; Meijun HUANG ; Jiankun MO ; Xiaomian ZHOU
Clinical Medicine of China 2008;24(5):417-419
Objective To investigate the role of platelet indices in the differentiation of thrombocytopenia caused by bone marrow diseases and thrombocytopenia caused by non-marrow diseases.Methods Mean platelet volume(MPV),platelet crit(PCT)and platelet size deviation width(PDW)of 76 othromboeytopenia(TP)patients,66 immune thrombocytopenia purpura(ITP)patients,8 secondary thrombocytocritpenia purpura(STP)patients,8 acquired pure megakaryocytic thrombocytopenia purpura(AATP)patients,140 malignant hematological diseases(MHD)(including acute leukemia,aplastic anemia and myelodysplastic syndromes)patients and 100 healthy people were respectively determined by blood cell analyzer Cell-Dyn 3700.Result Compared with control group,the MPV of the patients with MHD significantly decreased,and then the PDW of them increased.For patients with STP,the MVP and PDW markedly increased.The MVP of patients with AATP was normal,and PDW significantly increased.The MPV,PCT and PDW of ITP and TP showed marked difference(P<0.01).In contrast with the control group,the MPV,PCT and the PDW of patients with hemopathy and patients with ITP were remarkably different(P<0.01).Compared with the marrow TP and the non-marrow TP or control group,MPV and PDW showed significant difference(P<0.01).During the effective treatment of patients with ITP,PLT increased and then MPV and PDW decreased.Conclusion The level changes of MPV and PDW,in particular MPV can primarily judge the cause of thrombocytopenia (MPV<reference value as caused by bone marrow diseases but MPV>reference value as caused by bone marrow diseases).In addition,during the effective treatment of patients with ITP,with changes of MPV and PDW present 5 days earlier than that of PLT,may used to observe the therapeutic effect.Myelodysplastic syndromedynamic observation of the platelet parameter helps for the differential diagnosis,judgment of the states of the diseases and observation of the effectiveness of therapy of ITP.
5.Fequency of CD19+CD24hiCD38hi Breg cells and its association with Treg in pancreatic cancer patients
Jiangtao LI ; Qiuxia ZHOU ; Qian YANG ; Meijun ZHONG
The Journal of Practical Medicine 2017;33(4):590-593
Objectives The aim of the study was to detect the frequency of B regulatory cells (Breg)and the correlation between Breg and T regulatory cells (Treg) in pancreatic cancer patients,and to investigate its role in pathogenesis of pancreatic cancer.Methods 50 pancreatic cancer patients and 21 healthy controls were enrolled.CD19+CD24hiCD38hi Breg and CD4+CD25high Treg was also determined via flow cytometry.The correlation between Breg and Treg was analyzed by Spearman correlation test.Results Upregulation of CD19+CD24hiCD381hi Breg was associated with pancreatic cancer progression.Furthermore,this B cell subset was positively correlated with the frequency of CD4 + CD25high Treg cells.Conclusions Together,CD19 + CD24hiCD38hi Breg cells are significantly elevated in pancreatic cancer patients,indicating this B cell subset might play an vital role in clinical progression of pancreatic cancer.The significant positive correlation between Breg and Treg may suggest CD 1TCD24hiCD38hi Breg are affecting tumor progression through Treg cells.
6.Expression of resistance-related genes in lung carcinomas tissue and its clinical significance
Meijun LU ; Caicun ZHOU ; Xinghua YI ; Al ET
China Oncology 2001;0(03):-
0.05).The patients with positive P gp and LRP expression responded more poorly to chemotherapy than those with negative P gp and LRP expression ( P
7.In vitro imaging study of E-selectin receptor-targetting ultrasound contrast agent
Hao WU ; Yuli ZHOU ; Jing ZHANG ; Meijun ZHOU ; Sushu LI ; Hairong ZHENG ; Hongmei LIU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2017;37(2):86-90
Objective To develop a vulnerable plaque targeting ultrasound contrast agent (UCA) and to evaluate its affinity and imaging performance in vitro.Methods E-selectin receptor-targeting UCA,which conjugated with monoclonal antibody of E-selectin,was prepared with filming-rehydration method and biotin-avidin linkage.The size and distribution of UCA were measured with particle size analyzer,the connectivity condition of microbubbles with E-selectin antibody was also detected with fluorescence analysis.The cytotoxicity from microbubble and ultrasound irradiation was evaluated through cell counting kit-8 (CCK8) assay.The adhesion effect of UCA was assessed after co-incubated with activated mouse endothelial cells (bEnd.3) and compared with that of free antibody intervention group and control group.The imaging performance of UCA at different time points was observed on an ultrasound equipment with a high-frequency transducer.Two-sample t test and one-way analysis of variance were performed to analyze the data.Results E-selectin receptor-targeting UCA was successfully prepared.The cytotoxicity result with CCK8 assay demonstrated the favorable biocompatibility of UCA.The connection amount of UCA on activated bEnd.3 cells ((6.23 ± 0.45) bubbles/cell) was significantly higher than that of the free antibody intervention group ((1.57±0.34) bubbles/cell) and control group ((0.07±0.03) bubbles/cell;F=291.43,P<0.01).The performance of in vitro ultrasonography at the same time points showed no obvious difference between targeting UCA and control UCA (all t<0.51,all P>0.05).Conclusions The prepared E-selectin receptor-targeting UCA has favorable targeting and imaging capabilities.It might be a potentially ultrasound molecular imaging agent for early detection and prognosis evaluation of vulnerable plaque.
8.Ultrasound mediates iRGD targeted liposome-microbubble complex for thrombolytic therapy in vitro
Meijun ZHOU ; Hongmei LIU ; Fei YAN ; Sushu LI
Chinese Journal of Ultrasonography 2018;27(4):342-347
Objective To fabricate iRGD targeted liposome-microbubble complex containing uPA ( iRGD-LMC) ,and to improve the thrombolytic efficiency and reduce the risk of thrombolysis by iRGD-LMC combining with ultrasound targeted microbubbles destruction ( UTMD ) to release drug into the thrombus site with the help of microbubble cavitation effect . Methods Biotinylated iRGD-MBs were fabricated by thin-film rehydration method .Biotinylated liposomes containing uPA were fabricated by freeze-thaw method and were conjugated to the biotinylated iRGD-MBs surface through biotin-avidin linkage . The iRGD-LMC was subjected to confocal microscopy to determine the particle morphology . The concentration , average diameter and size distribution were determined by particle sizing instrument . The uPA loading efficiency was measured by BCA Protein Assay Kit . Ultrasound imaging was performed using a Vevo 2100 ultrasound imaging system . The iRGD-LMC was irradiated by different ultrasound time and intensity to release drug . Thrombolytic effect in vitro of iRGD-LMC combined with UTMD was observed on the thrombosis model which was extracted from mouse blood . Results iRGD-LMC was successfully prepared . iRGD-LMC was exhibited a well-defined spherical morphology and homogeneous distribution ,like ordinary microbubbles . The concentration of iRGD-LMC was ( 0 .51 ± 0 .03 ) × 109 / ml and average diameter was ( 2 .62 ± 0 .12) μm . Drugs loading efficiency was ( 3878 .5 ± 97 .8) μg uPA per 108 microbubbles . iRGD-LMC could achieve contrast-enhanced ultrasound imaging in vitro . The thrombolytic effect of iRGD-LMC +US group ( 87 .66 ± 1 .69) % was the best in vitro ,and had significant difference with others groups ( P <0 .05) ,followed by iRGD-LMC group ( 53 .32 ± 4 .86) % and uPA group ( 51 .09 ± 9 .01) % ,Compared with PBS group ,US group ( 23 .56 ± 9 .46) % had thrombolytic effect . Conclusions iRGD-LMC is successfully prepared ,which has the advantages of high drug loading of liposomes and good acoustic properties of microbubbles . iRGD-LMC combined with UTMD achieves a significant thrombolytic effect in vitro .
9.Efficacy and safety of bone cement injection via unipedicular and bipedicular approaches in the treatment of osteoporotic vertebral compression fractures: a Meta-analysis
Yantao WANG ; Yi CHEN ; Meijun PAN ; Jiahua HUANG ; Jinzhao CHEN ; Dejian LIU ; Shuyi XIAN ; Chi ZHOU ; Haibin WANG
Chinese Journal of Tissue Engineering Research 2019;23(10):1633-1640
BACKGROUND: In the treatment of osteoporotic vertebral compression fractures with percutaneous vertebroplasty, the efficacy and safety of bone cement injection by unipedicular and bipedicular approaches are still controversial. Some studies suggest that bone cement injection via unipedicular approach can shorten operation time and reduce postoperative complications, while the other studies suggest that bone cement injection via bipedicular approach can make bone cement distribute more evenly in the vertebral body and relieve pain better. OBJECTIVE: To systematically assess the efficacy and safety of percutaneous vertebroplasty via unipedicular versus bipedicular approach in the treatment of osteoporotic vertebral compression fractures. METHODS: Randomized controlled trials about unipedicular versus bipedicular percutaneous vertebroplasty in the treatment of osteoporotic vertebral compression fracture published before September 18 t h, 2018 were retrieved in the PubMed, Cochrane library, Embase, CNKI, VIP, WanFang data and CBM. Two researchers independently screened all the literatures, carried out data extraction and used improved Jadad to evaluate the methodological quality of the included studies. Meta-analysis using Revam 5.3 was conducted. Egger's test was utilized to evaluate the publication bias. RESULTS AND CONCLUSION: Totally 14 randomized controlled trials including 900 cases were eventually included, 452 cases in unipedicular approach group and 448 cases in bipedicular approach group. The Meta-analysis results showed that compared with the bipedicular approach, the unipedicular approach required shorter operation time [weighted mean difference (WMD) =-16.59, 95% confidence interval (CI) (-19.25, -13.94), P < 0.001], smaller amount of bone cement injected [WMD=-1.27, 95% CI (-1.64, -0.89), P < 0.001], and had lower incidence of cement leakage [relative risk=0.70, 95% CI (0.53, 0.92), P =0.01]. There were no significant differences in short-and long-term Visual Analogue Scale scores, short-and long-term Oswestry Disability Index scores, and the postoperative incidence of adjacent vertebral fractures between the two groups (P> 0.05). Overall, bone cement injection both via bipedicular and unipedicular approaches can lead to a significant improvement in pain relief and living quality of osteoporotic vertebral compression fracture patients, but bone cement injection via unipedicular approach can shorten operation time, reduce cement volume and lower the incidence of cement leakage compared with the bipedicular approach.
10.The relationship of pathologic classification and prognosis in diabetic nephropathy
Qiqi FENG ; Meijun SI ; Jing ZHOU ; Xun LIU ; Hui PENG ; Tanqi LOU
Chinese Journal of Nephrology 2018;34(9):641-647
Objective To explore the relationship between clinical manifestations and pathological changes in diabetic nephropathy (DN) and to assess the predictive power of the pathologic classification for DN established by the Renal Pathology Society in 2010.Methods Patients with type 1 or type 2 diabetes and biopsy-proven DN in the Third Affiliated Hospital of Sun Yat-sen University between January 2004 to June 2014 were enrolled in the present study and were followed-up until 31 December 2014.The outcome was defined as renal end-points including renal replacement therapy and doubling of serum creatinine as well as all-cause mortality.The laboratory and histologic data were analyzed and outcomes were assessed using survival analysis.Results Fifty-seven people enrolled in this study were categorized into Class Ⅱa (n=9),Class Ⅱb (n=9),Class Ⅲ (n=25) and Class Ⅳ (n=14) while no participants belonged to Class Ⅰ.The changes of Class Ⅱa were slight and those of Class Ⅳ were severe both in the clinical data (diabetic duration,blood pressure,estimated glomerular filtration rate,urine protein excretion rate,albumin and hemoglobin) and the pathological data (percentage of global glomerulosclerosis,percentage and scoring of interstitial fibrosis and tubular atrophy,scoring of interstitial inflammation and incidence of large vessel lesions).There were no significant differences between Class Ⅱb and Ⅲ in the above variables except for the scoring of arteriosclerosis.The mean follow-up duration was 25.9 months.Twenty-five patients (43.9%) reached the renal outcomes and six people (10.5%) reached all-cause mortality.The survival analysis showed that there were significant differences among the renal survival curves of different glomerular classes and of different interstitial and vascular scorings,but not in the survival curves related to all-cause mortality.Conclusions The glomerular classes are not completely associated with renal prognosis.The clinical manifestations and renal outcomes are benign in Class Ⅱa,moderate but similar in Class Ⅱb and Ⅲ and severe in Class Ⅳ.The glomerular classification and interstitial and vascular scorings are associated to renal prognosis while their associations with mortality remain to be verified.