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Objective:To evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) on sleep quality in patients with post-stroke sleep disorder (PSSD).Methods:The clinical randomized controlled trials involving PSSD patients who received rTMS were retrieved from nine medical databases. After excluding duplicated references, screening for independent references and risk evaluation, the remaining references were input into RevMan5.4 software for meta-analysis.Results:Twelve eligible literatures were included in the final analysis. Meta-analysis results revealed that after rTMS intervention, there were significant differences in the following terms between the treatment and control groups (all P < 0.05): Pittsburgh sleep quality index score [MD = -2.60, 95% CI (-3.03, -2.17), P < 0.000 01]; sleep latency [MD = -9.69, 95% CI (- 16.87, - 2.50), P < 0.01], sleep efficiency [MD = 8.90, 95% CI (5.41, 12.39), P < 0.01], number of awakenings [MD = -1.15, 95% CI (- 2.26, - 0.04), P = 0.04], awakening duration [MD = -10.95, 95% CI (- 13.30, -8.61), P < 0.01], and rapid eye movement [MD = 4.54, 95% CI (2.24, 6.85), P < 0.01] in polysomnography; brain-derived neurotrophic factor score [MD = 5.29, 95% CI (2.47, 8.11), P = 0.0002]; clinical curative rate [ OR = 4.46, 95% CI (2.75, 7.23), P < 0.000 01]. Conclusion:rTMS can improve the sleep quality in patients with PSSD, which is worthy of clinical promotion.
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Objective To investigate the expressions of phosphorylated H2AX (γH2AX) and p53-binding protein 1 (53BP1) in DNA oxidative damage of human bronchial epithelial (HBE) cells.Methods The HBE cells were treated with 0,25,50,100,200,400 μmol/L of hydrogen peroxide (H2O2) for 1 hour,respectively,and their DNA oxidative damages displaying as double-strand breaks (DSBs) were induced.The viability and apoptosis of HBE cells were measured by the CCK-8 method and flow cytometry,respectively.The expression status of γH2AX and 53BP1 in nucleus of HBE cells was observed by a fluorescence microscope.The expression levels of γH2AX,53BP1 and BRCA1 were determined by western blot.Results Compared with the control (0 μmol/L of H2O2),the via bility of HBE cells treated with 25 μmol/L of H2O2 (1.07 ±0.01) increased,while those with 50,100,200,400 μmol/L of H2O2 (0.97 ± 0.01,0.96 ± 0.01,0.95 ± 0.01,0.94 ± 0.01) decreased significantly (F =50.35,P ＜ 0.01).The apoptosis rates of HBE cells treated with 50,100,200,400 μ mol/L of H2O2 ([7.54 ± 0.57] ％,[7.84 ± 0.68] ％,[8.40 ± 0.50] ％ and [14.03 ± 1.03] ％) were significantly higher than that with 0 μmol/L of H2O2 ([4.65 ± 0.32] ％,F =35.879,P ＜ 0.01).Compared with the control (0 μmol/L of H2O2),the average fluorescence intensity of γH2AX in nucleus of HBE cells treated with 25,50,100,200,400 μmol/L of H2O2 increased significantly (F =223.97,P ＜ 0.01),while those of 53BP1 in nucleus of HBE cells treated with 50,100,200,400 μmol/L of H2O2 decreased significantly (F =117.78,P ＜ 0.01).The results of western blot showed that the expres sion levels of γH2AX increased with the increase of H2O2 concentration,while that of 53BP1 and BRCA1 was on the contrary (F =96.20,21.92 and 11.55,respectively,P ＜0.01).Conclusion In the oxidative damage of HBE cells induced by H2O2,γH2AX may be used as a marker of DNA oxidative damage,while the decreased expression of 53BP1 suggests that other mechanisms to repair the DNA damage sites may exist.
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Objective To investigate the DNA staining efficiencies of 4 kinds of nucleic acid fluorescent dyes,including EB,SYBR Green Ⅰ,Gold View and AO,in single-cell gel electrophoresis (SCGE) assay,and the possibility to use a new nucleic acid fluorescent dye instead of EB.Methods The peripheral blood lymphocytes from healthy individuals were isolated and treated with 0,20,40,60 and 80 μg/mL of H2O2,respectively.Then,the DNA damages of lymphocytes were detected by the neutral SCGE assay.The DNA was stained with EB,SYBR Green Ⅰ,Gold View and AO dyes,respectively,and the staining results were observed and compared under a fluorescence microscope.In addition,the percentages of tail DNA (％ Tail DNA) from different staining methods were analyzed and compared.Results The results of SCGE showed that SYBR Green Ⅰ,Gold View and AO staining could well reflect the DNA damages of lymphocytes,and that the optimal concentrations for SYBR Green Ⅰ,Gold View and AO were 1 ×-5 ×,2 ×-5 × and 2-5 μg/mL,respectively.The regression coefficients for EB,SYBR Green Ⅰ,Gold View and AO were 2.71,2.81,2.73 and 2.75,respectively,which indicated that there was consistent dyeing effect between them.The results of ％ Tail DNA were stable with in 48 hours,and there was no significant difference between the 4 fluoresent dyes (P ＞ O.05).The inter-assay coefficients of variation (CVs) of SYBR Green Ⅰ,Gold View and AO were 6.92％,7.10％ and 8.25％,respectively,which were superior to that of EB (8.35％).The intra-assay CVs of SYBR Green Ⅰ and Gold View were 3.07％ and 2.74％,respectively,which were superior to that of EB (3.59％).Conclusion SYBR Green Ⅰ,Gold View and AO may be used for the nucleic acid fluorescent staining,and especially Gold View is more suitable for instead of EB in SCGE.
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Objective To observe the effects of Bushen Huoxue Decoction on clinical symptom, vertigo degree and cognitive function for elderly patients with chronic cerebral circulation insufficiency (CCCI); To explore its possible mechanism. Methods Totally 70 cases were randomly divided into observation group and control group according to the random digits table method, with 35 cases in each group. The two groups were given Western medicine consisting of blood pressure control, glucose control and blood lipid control. Based on this, the control group was given Flunarizine Hydrochloride capsules, 5 mg once a day orally before sleeping. The observation group was given Bushen Huoxue Decoction, one dose a day and taken twice a day. The treatment lasted for 30 days. The TCM symptom score, Chinese version of dizziness handicap inventory (DHI) and Montreal cognitive assessment (MoCA) score were observed. The mean blood flow velocity (Vm) of basilar artery (BA), bilateral vertebral artery (VA), bilateral middle cerebral artery (MCA) and the content of plasma acid phospholipid (AP) were detected, and the clinical efficacy was evaluated. Results The total effective rate of the observation group was 94.3％ (33/35), which was significantly higher than that of 82.9％ (29/35) in the control group, with statistical significance (P<0.05); after treatment, the TCM symptom score, DHI score, and the content of plasma AP were significantly lower than those of pre-treatment in the same group (P<0.05); the MoCA score and the Vm of VA, LBA, RBA, LMCA, RMCV were significantly higher than those of pre-treatment in the same group (P<0.05); the TCM symptom score, DHI score, MoCA score, the Vm of LVA, LMCA, RMCA and the content of plasma AP in the observation group were improved better than those in the control group, with statistical significance (P<0.05). Conclusion Bushen Huoxue Decoction has an obvious therapeutic effects for elderly patients with CCCI, which can improve clinical symptom, vertigo degree and cognitive level, which possible mechanism is related to increasing the cerebral blood flow velocity and reducing the content of plasma AP.
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Objective@#To investigate the change of autophagy level of bone marrow nucleated red blood cell (RBC) in patients with myelodysplastic syndromes (MDS) .@*Methods@#Fifty-four MDS patients and thirty-three controls were enrolled in this study. The mitophagy were observed by transmission electron microscopy (TEM) . The level of autophagy-associated protein LC3B in GlycoA+ nucleated RBC was measured by flow cytometry. The expressions of ULK1 and mTOR mRNA in GlycoA+ nucleated RBC were measured by real-time PCR. The expression of the mitochondrial outer membrane protein TOM20 in GlycoA+ nucleated RBC was detected by Western blot.@*Results@#Autophagosomes or autolysosomes were scarcely observed by TEM in MDS patients. The expression of LC3B in GlycoA+ nucleated RBC in high-risk MDS patients (0.22±0.12) was significantly lower than that in normal controls (0.43±0.22, P<0.001) , and lower than that in low-risk MDS patients (0.40±0.16, P=0.001) . The expression of AMPK [0.26 (0.60) ] in GlycoA+ nucleated RBC in high-risk MDS patients was significantly lower than that in controls [1.00 (2.07) , P<0.017) . The expression of ULK1 mRNA in GlycoA+ nucleated RBC in high-risk MDS patients [0.27 (3.31) ] was significantly lower than that in controls [1.07 (4.41) , P<0.017]. The level of mTOR mRNA in GlycoA+ nucleated RBC in high-risk MDS patients [1.82 (3.74) ] was significantly higher than that in controls [1.26 (1.38) , P<0.017]. The level of LC3B in GlycoA+ nucleated RBC was negatively correlated with the HGB (r=0.529, P=0.009) in high-risk MDS patients. The expression of mitochondrial outer membrane protein TOM20 in high-risk MDS patients was 9.42±4.42.@*Conclusion@#Autophagy is impaired in nucleated RBC of MDS patients.
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Objective To investigate the role of the group IB secretory phospholipase A2 (sPLA2-IB) and M-type phospholipase A2 receptor (PLA2R) in human podocyte injury and its possible signal transduction pathway.Methods Differentiated human podocytes were exposed to PBS or different sPLA2-IB concentration conditions (10-9,10-7,10-5 mol/L) for 2 hours.The wound healing assay was used to measure cell migration rate;Apoptosis in cultured human podocytes was assessed by Hoechst 33342 staining and flow cytometry;Western blot was used to analyze the protein expression of p-cPLA2α,p-p38,and p53.Then control siRNA or PLA2R siRNA were transfected to podocytes.Podocytes were divided into normal control group,negative control siRNA group and PLA2R siRNA group.Twenty four hous later,the cells were stimulated by 105 mol/L sPLA2-IB for 2 hours.The protein expression of p-cPLA2α,p-p38,and p53 were detected by Western blot.Results Compared to PBS control group,the migration ability of podocytes decreased when stimulated with sPLA2-IB (10-7mol/L-10-5 mol/L),and the apoptosis of podocytes increased in a concentration-dependent manner,the protein level of p-cPLA2α,p-p38 and p53 protein increased too.After the knockdown of PLA2R by PLA2R siRNA transfection,stimulated the podocytes with the same dosage of sPLA2-IB,the protein expression of p-cPLA2α,p-p38 and p53 all decreased.Conclusion sPLA2-IB stimulation can increase human podocyte apoptosis and decrease its migration ability.The possible mechanism might be through p38-cPLA2α-p53 pathway.
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Objective To investigate the role of the group IB secretory phospholipase A2 (sPLA2-IB) and M-type phospholipase A2 receptor (PLA2R) in human podocyte injury and its possible signal transduction pathway.Methods Differentiated human podocytes were exposed to PBS or different sPLA2-IB concentration conditions (10-9,10-7,10-5 mol/L) for 2 hours.The wound healing assay was used to measure cell migration rate;Apoptosis in cultured human podocytes was assessed by Hoechst 33342 staining and flow cytometry;Western blot was used to analyze the protein expression of p-cPLA2α,p-p38,and p53.Then control siRNA or PLA2R siRNA were transfected to podocytes.Podocytes were divided into normal control group,negative control siRNA group and PLA2R siRNA group.Twenty four hous later,the cells were stimulated by 105 mol/L sPLA2-IB for 2 hours.The protein expression of p-cPLA2α,p-p38,and p53 were detected by Western blot.Results Compared to PBS control group,the migration ability of podocytes decreased when stimulated with sPLA2-IB (10-7mol/L-10-5 mol/L),and the apoptosis of podocytes increased in a concentration-dependent manner,the protein level of p-cPLA2α,p-p38 and p53 protein increased too.After the knockdown of PLA2R by PLA2R siRNA transfection,stimulated the podocytes with the same dosage of sPLA2-IB,the protein expression of p-cPLA2α,p-p38 and p53 all decreased.Conclusion sPLA2-IB stimulation can increase human podocyte apoptosis and decrease its migration ability.The possible mechanism might be through p38-cPLA2α-p53 pathway.
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This study was aimed to optimize optimum preparation process of 5,7,3',4'-O-tetramethylquercetin (TMQ). With 5,7,3',4'-O-tetramethylrutin as raw material, TMQ was prepared by acidic aqueous solution method. The preparation process of TMQ was optimized by single factor test and orthogonal test. The results showed that the optimum technology conditions were ethanol concentration at 0, temperature at 80℃, hydrochloric acid concentration at 0.50%, and the hydrolysis time for 1.0 h. It was concluded that the optimum preparation process had the charac-teristics of high yield, simple process, stable and feasible.
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Flavonoids, which is composed of a C6-C3-C6 backbone, is a kind of secondary metabolites of Chinese materia medica (CMM). It has received extensive attention from all over the world and obtained a rapid develop-ment due to its widespread distribution, structural complexity and active diversity. This article has summarized the progress of flavonoids both in antioxidant activity and in mechanism, so as to provide some references for the re-search and development of new medicine of flavonoids with antioxidant activity.
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With the modernization of traditional Chinese medicine (TCM), classic extraction methods such as sol-vent extraction, steam distillation, squeezing method, sublimation method have become much more difficult in sat-isfying needs of the development of the society as a result of low extraction rate of effective components, low per-centage impurity clearance. Therefore, in recent years the new extraction techniques with the advantages of green environmental protection , conditional stability , high extraction rate , strong biological activity , have been widely used in TCM extraction. These new extraction techniques have already shown each of its strength. The application progress on new extraction technology of Chinese medicine polysaccharide, both in standalone application and in collaboration application, were discussed in this article, so as to make new technologies be applied more reason-ably and effectively in Chinese medicine polysaccharide components.
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Objective To observe the clinical effect of health education pathway on patients after hip replacement. Methods Patients after artificial hip replacement (200 cases) were divided randomly into the observation group and the control group with 100 cases in each group.The control group adopted general health education methad.The observation group was given health education according to health education pathway.The level of disease-related knowledge and satisfactory degree were compared between the two groups. Results The level of disease-related knowledge and satisfactory degree in the observation group were higher than those of the control group (P ＜ 0.01 ). Conclusions Health education pathway can facilitate level of disease-related knowledge and positive cooperation with treatment and nursing of patients as well as increase satisfactory degree of patients.
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Objective To study whether early treatment of aminophylline can protect renal function in neonates with perinatal asphyxia.Methods 60 neonates with perinatal asphyxia were randomly divided into 2 groups.Within the first hour after birth,the treatment group(30 cases)received intravenously a single dose of aminophylline(5mg/kg),and the control group(30 cases)received placebo of water.Urinary Nacety-?-D-Amino-Glucosidase(NAG)activity was recorded everyday during the first 3 days of life.Heart rate,respiratory rate and blood pressure were recorded per 4h.Results Urinary NAG activity of treatment group at 48h and 72h after birth were significantly lower than that of control group(P
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Objective To study the significance of artery blood gas(ABG)of neonate cord blood on the diagnosis of asphyxia neonatorum.Methods Neonates were divided into two groups:asphyxia group and control groups.ABG were measured by AVL blood gas analysis instrument.Results pH and PO2 in the asphyxial group were lower and PCO2 was higher than those in control group(P
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Objective To evaluate the effect of de-escalation therapy of antimicrobial agents on the treatment of ventilator assoeiated pneumnonia(VAP).Methods 40 VAP patients were evaluated.17 cases were treated by de-escalation therapy of antimicrobial agents,the rest were treated by routine therapy.Results The achievement ratio of machine removing was superiorer to that of routine therapy(P1 week) received de-escalation therapy of antimicrobial agents whose average duration of ventilation was shorter than that treated by routine therapy(P
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@#目的探讨急性心肌梗死(AMI)患者实施早期康复护理的效果。方法对86例AMI患者根据住院日期分为对照组和实验组,分别采用传统护理方式和早期康复护理方案实施护理,并进行效果比较。结果两组在心功能、心绞痛、心理状态、并发症、平均步行距离、住院时间等方面均有显著性差异(P<0.05或P<0.01)。结论实施早期康复护理效果优于传统护理方法。