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ObjectiveTo study the effect of upper limb robot-assisted therapy on upper limb function and cerebral cortex activation in stroke patients using functional near-infrared spectroscopy (fNIRS). MethodsFrom January, 2022 to January, 2023, 32 stroke patients in Zhejiang Rehabilitation Medical Center were randomly divided into control group (n = 16) and experimental group (n = 16). Both groups received routine neurological medication and routine rehabilitation. The control group received routine upper limb exercises, the experimental group received upper limb robot-assisted therapy. They were assessed with Fugl-Meyer Assessment-Upper Extremities (FMA-UE) and fNIRS (oxyhemoglobin, deoxyhemoglobin, and total hemoglobin) before and four weeks after treatment. NIRS_SPM was used for activation analysis, Homer2 was used for blood oxygen concentration analysis. ResultsAfter treatment, the score of FMA-UE increased in both groups (|t| > 5.910, P < 0.001), and was higher in the experimental group than in the control group (t = -2.348, P < 0.05). fNIRS activation results showed that, the activation increased in the experimental group after treatment in channel 17 (F = 9.354, P < 0.01), and it was more than that in the control group (F = 5.217, P < 0.05). fNIRS blood oxygen concentration results showed that, the blood oxygen concentration increased in the experimental group after treatment in channel 17 (F = 12.179, P < 0.01), and it was more than that in the control group (F = 4.883, P < 0.05). ConclusionThe upper limb robot-assisted therapy can improve the upper limb motor function and cerebral cortex activation of stroke patients.
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Objective To study the influence of different support heights, support numbers and cross-sectional dimensions on support performance of NiTi thoracic aortic stents. Methods Twenty-seven scaffold models with different parameters were established by using AutoCAD 2016 and SoildWorks 2014 software. HyperMesh 14.0 was used for tetrahedral mesh division, and ABAQUS 2017 was used for support performance simulation analysis. Results With the decrease of support height, the support stiffness would increase; a larger cross-section size would lead to a larger support stiffness; with the increase of support numbers, the support stiffness would increase. Among the influencing factors of support performance, the order of influence degree was support height＞section size＞support numbers. Conclusions The research findings have certain guiding significance for the development and research of thoracic aortic stents, and provide theoretical basis for the selection and optimization of clinical stents.
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Objective To investigate the relationship between serum three triacylglycerol lipase (ATGL) and inflammatory factors in patients with coronary atherosclerotic heart disease (CHD).Methods 135 cases of CHD patients,and 50 healthy people were enrolled in the study.CHD patients were divided into stable angina pectoris (SAP) group (53 cases),unstable angina pectoris (UAP) group(46 cases) and acute myocardial infarction (AMI) group (36 cases) according to relevant diagnostic criteria.The serum levels of ATGL,tumor necrosis factor (TNF-α),interleukin-6(IL-6), interleukin-10(IL-10),1,25 dihydroxy vitamin D3[1,25(OH)2D3] were measured by ELISA, and statistical treatment was performed.Results The levels of ATGL,1,25(OH)2D3 in CHD group were lower than that in control group,and the levels of TNF-α,IL-6 and IL-10 were higher than those of control group(P<0.05).Comparison among different clinical types of CHD patients showed that ATGL,1,25 (OH)2D3 levels of AMI group were significantly lower than those of SAP group and UAP group,while TNF-α,IL-6 and IL-10 were higher than those of SAP group and UAP group(P<0.05);the levels of ATGL,1,25(OH)2D3 in UAP group were lower than those in SAP group,and TNF-α and IL-10 were higher than those in SAP group(P<0.05).Spearman correlation analysis showed that in the CHD group the serum levels of ATGL negatively correlated with TG,LDL-C,LP (a),TNF-α,IL-6,IL-10(r=-0.289,-0.227,-0.359,-0.243,-0.205,-0.337,P<0.05),while positively correlated with age,HDL-C,1,25(OH)2D3(r=0.267,0.356,0.229,P<0.05).Conclusion The ATGL levels in patients with CHD decreases with the increase of inflammatory factors,and plays a certain anti-inflammatory role in the progression of CHD.It can be used as a monitoring indicator to reflex the progress of CHD.
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Aim To investigate the mechanism of high mobility group protein B1(HMGB1)and tumor necrosis factor α-induced protein-3(TNFAIP3)involved in cell proliferation in lupus nephritis(LN)patients and human mesangial cells(HMC).Methods Immunofluorescence and immunohistochemistry technique were employed to detect HMGB1,TNFAIP3 and IκBα expression levels in glomerular cells of type Ⅳ LN patients.BrdU incorporation technology was used to detect cell proliferation level in HMC after stimulated by recombinant HMGB1.TNFAIP3 and IκBα expression levels in HMC were detected after HMGB1 stimulation by Western blot.Results The expression levels of HMGB1 and TNFAIP3 were increased in LN patients,while IκBα was decreased.HMC proliferation levels increased significantly after HMGB1 stimulation.At the same time,30 minutes after HMGB1 stimulation,the expression level of TNFAIP3 was significantly increased(P<0.05),while IκBα decreased(P<0.05)and then p65 increased significantly(P<0.05),compared with control group.Conclusion HMGB1 and TNFAIP3 are probably involved in mesangial cell proliferation by activating of NF-κB signaling pathways in LN pathogenesis.
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Purpose To investigate the role of S3I-201 on tubular interstitial lesion in lupus nephritis.Methods MRt/MpJ mice were designated as the control group.MRL/lpr nice were randomly divided into LN group,S3I-201 group and DMSO group.The serum and 24 h-urine were collected to detect the serum creatinine,blood urea nitrogen and urine protein.Immunohistochemistry was used to detect the expression of FN.Western blotting analysis was used to determine the expression of E-cadherin,α-SMA,MCP-1,ICAM1,STAT3 and p-STAT3.Results Compared with the expression level in control group,the protein level of α-SMA,MCP-1,ICAM1 and FN were increased in renal tissue of MRL/lpr mice,while the expression of E-cadherin was markedly decreased.And the STAT3 was activated in renal tissue of MRL/lpr mice.The administration of S3I-201 could inhibite the activation of STAT3 and ameliorate the expression of E-cadherin,α-SMA,MCP-1,ICAM-1 and FN.Conclusion S3I-201 can relieve the tubular interstitial leison,which maybe concerned with the phosphorylation of STAT3.
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Objective To detect the serum levels of 25‐hydroxy vitamin D[25‐(OH)D] ,homocysteine(HCY) andβ2‐microglob‐ulin(β2‐MG) in the patients with type 2 diabetes mellitus (T2DM ) and to investigate the relationship between serum HCY and β2‐MG with 25‐(OH)D and its clinical significance .Methods A total of 139 cases of T2DM were selected anddivided into 3 groups , the normal albuminuria group for [urinary albumin to creatinine ratio (UACR)< 30 mg/gCr ,45 cases] ,microalbuminuria group (UACR ≥ 30 mg/gCr and < 300 mg/gCr ,48 cases) and massive proteinuria group (UACR ≥ 300 mg/gCr ,46 cases) according to the urinary albumin to creatinine ratio (UACR) .Other 45 individuals undergoing the physical examination were selected as the con‐trol group .The serum 25‐(OH)D level was measured by electrochemiluminescence .Serum HCY level was determined by the enzy‐matic method .Serum β2‐MG level was measured by the latex enhanced immune turbidity method .At the same time ,the biochemical indicators of FBG ,HbA1C ,serum calcium and phosphorus were measured .Results The serum 25‐(OH)D level was decreased with the increase of urinary albumin in the DM patients .And the serum 25‐(OH)D level in the microalbuminuria group and the massive proteinuria group was significantly decreased compared with the normal albuminuria group and the control group ,the difference was statistically significant(P<0 .01) .The serum HCY and β2‐MG levels in the microalbuminuria group and the massive proteinuria group were significantly increased compared with the healthy control group ,the difference was statistically significant (P<0 .05) . Conclusion The serum 25‐(OH)D level is decreased with the increase of urinary albumin in the diabetic patients .The serum HCY andβ2‐MG levels are increased with the increase of urinary albumin and serum 25‐(OH)D level is negatively correlated with the HCY andβ2‐MG levels .
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Objective To investigate the expressions of TK1 (thymidine kinase 1) in PHC (primary hepatic carcinoma). Methods TK1 and AFP in serum of 33 cases of PHC (primary hepatic carcinoma), 38 cases of hepatic cirrhosis,36 cases of hepatitis and 35 cases of healthy people were detected by means of Western blot—enhanced chemiluminecence and electrochemiluminescence. Results The difference of TK1 level in PHC group indicated significance when compared with that in hepatic cirrhosis group , hepatitis group and control group (U value was 436.4, 352.1, 163.6, respectively, all P 0.05). Kaplan-Meier curve analysis revealed that PHC patients with TK1≤ 2.0 pmol/L had a significantly shortened overall survival when compared with those with TK1 > 2.0 pmol/L (χ2 = 3.954,P < 0.05). Multivariable Cox regression analysis indicated that the level of TK1 and TNM stage were the independent risk factors for patients with PHC (all P <0.05). Conclusions The detection of TK1 has a certain clinical value in the diagnosis, monitoring and evaluation of the prognosis of the PHC.
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Objective To investigate the effect of high mobility group box chromosomal protein 1 (HMGB1) knockdown on improving renal function and decreasing cell proliferation of glomeruli in lupus nephritis (LN) MRL/Faslpr mice.Methods Twenty-four MRL/Faslpr mice were randomly divided into 3 groups:LN model group,shHMGB1 group and empty plasmid group.Besides,eight MRL/MpJ mice,age and mass matched to the MRL/Faslpr mice,were chosen as normal control group (shNC group).Electroporation technology was used for in vivo transfection in treatment group.shHMGB1 group and empty plasmid group were transfected by electroporation technology for shHMGB1 plasmids and empty plasmid,LN model group and normal control group were transfected only with saline.Automatic biochemical analyzer was used to detect serum urea nitrogen (BUN) and creatinine (Scr) levels and 24 h urinary protein (UP) was tested.HE staining was used to detect the pathological change of renal tissues; real-time PCR,immunofluorence staining and Western blotting were used to detect the mRNA and protein expression of HMGB1 and PCNA.Results (1) The HMGB1 mRNA and protein expression in LN group increased compared with those in control group,HMGB1 mRNA and protein expression in shHMGB1 group reduced compared with those in LN model group (all P ＜ 0.05).(2) 24 h UP of MRL/Faslpr mice in shHMGB1 group significantly reduced compared with those in LN group (P ＜ 0.05).(3) Immunofluorence and Western blotting showed that positive signal of proliferating cell nuclear antigen (PCNA) was mainly located in nuclei,PCNA mRNA and protein in glomeruli of LN model group increased compared with those of control mice (P ＜ 0.05).Interestingly,PCNA expression in glomeruli of shHMGB1 group remarkably reduced (P ＜ 0.05).Conclusions shHMGB1 significantly improves renal function and decreases cell proliferation of glomeruli in LN MRL/Faslpr mice.
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Objective To discuss the application value of the combination detection of serum cystatin C(CysC),serum amyloid A (SAA)and urinary microalbumin(malb)for the early diagnosis of diabetic nephropathy(DN).Methods 112 cases of diabetic melli-tus(DM)were selected and divided into the non-DN group(malb<25 mg/L)and the early DN group(malb 30-299 mg/L)according to the urinary microalbumin level.50 cases of healthy subjects were selected as the control group.The levels of serum CysC and malb were measured by immuno-scatter turbidmetry and SAA was measured by enzyme-linked immunosorbent assays(ELISA).At the same time,the biochemical indexes of GLU,Cr,HbA1C were detected too.Results The levels of CysC,SAA and malb in the DM two groups were significantly higher than those in the healthy control group with statistical differences(P <0.05 ),moreover which were increased with the renal damage aggravation;the levels in the early DN group were significantly higher than those in the non-DN group with statistical differences(P <0.05).The levels of GLU and HbA1C in the DM two groups had statistically signifi-cant differences compared with the healthy control group(P <0.05).Conclusion The levels of serum CysC and SAA in the DM pa-tients are increased with the urinary malb level increase.The combined detection of CysC,SAA and malb could increase the diagnos-tic rate of the renal damage in early DN.
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Objective:To investigate the expression and mechanism of NF-κB signal pathway in murine lupus nephritis.Methods:The BXSB mice as well as C57BL/6 of 16 weeks were used.Transmission electron microscope and PAS were used to detect the pathological change of renal tissue.RT-PCR and ELISA were used to detect the expression of HMGB1 mRNA and protein.The expression of HMGB1,p- NF-κB,RAGE,IκB and PCNA protein was detected by immunohistochemical stain,FCM and Western blot.Results:The level of BUN in serum and Micro-albumin in urine of BXSB mice was higher than that in C57BL/6 mice.The expression of HMGB1 mRNA and HMGB1 protein level in peripheral blood increased significantly in BXSB group.Compared with those in control group,electron microscopy and PAS revealed the thickness of glomerular basement membrane(GBM),fusion of foot processes partly of epithelial dell and subepithelial electron-dense deposits in the renal tissue of BXSBA mice.Compared with that of control group,expression of PCNA was higher in glomeruli of BXSB mouse.HMGB1 protein over-expression localized in cytoplasm and extracellular milieu,especially in proliferative glomeruli in BXSB group,while the HMGB1 protein primarily confined to the nuclear of tubule in control group.In BXSB group,the expression of p-NF-κB and RAGE increased,while the expression of IκB decreased.There were positive correlation between the expression of HMGB1,RAGE and p-NF-κB protein (r=0.833,0.621,0.848,P＜0.01),while the expression of p-NF-κB protein negatively correlated with that of IκB.Conclusion:HMGB1 could activate NF-κB through combining with its receptor-RAGE,induce the form of proliferative glomerulonephritis by promoting the proliferation of inherent cell of glomeruli,which may play an important role in the murine lupus nephritis.
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In the program entitled "Studies and Practice on the Community-Oriented Teaching Model of Preventive Medicine for Non-Preventive Medicine Specialty", we have renovated the curricular arrangements, textbooks, teaching contents and methods of traditional preventive medicine for non-preventive medicine specialty so as to explore a new pattern of teaching preventive medicine for non-preventive medicine specialty in West China.