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Objective To observe the curative effect of Shenmai injection on patients with myocardial injury after cardiopulmonary resuscitation (CPR) and to explore its possible mechanism.Methods Sixty-two patients with cardiac arrest and respiratory arrest admitted to Qingdao Hiser Hospital from January 2010 to December 2016 were enrolled, they were randomly divided into a conventional therapy control group (30 cases) and a Shenmai treatment group (32 cases) and both groups were also treated by conventional treatment. The patients in the two groups were given basic life support of CPR and its commonly used drugs simultaneously. In Shenmai treatment group, the patients were additionally infused intravenously with 100 mL of Shenmai injection once per day. The therapeutic effect was evaluated after treatment for 7 days. On the day before treatment and 1, 3 and 7 days after treatment, the patient's blood was collected to determine the levels of myocardial injury landmarks, serum creatine kinase isoenzyme (CK-MB), cardiac troponin T (cTnT) and N-terminal B-type natriuretic peptide (NT-proBNP), and the incidences of arrhythmia of ventricular tachycardia, ventricular fibrillation (VF) and atrioventricular block were observed in the two groups; the left ventricular ejection fraction (LVEF), stroke volume (SV) and cardiac output (CO) were measured at bedside by two-dimensional echocardiography for the patients of two groups.Results In conventional therapy control group, the levels of CK-MB, cTnT showed a temporary increase after 1 day of treatment, after 3 days of treatment, CK-MB and cTnT were significantly lower than those before treatment, and reached the lowest levels after 7 days of treatment; the level of NT-proBNP after treatment showed a continuous decrease, the levels of LVEF, SV, CO were persistently increased after treatment; in Shenmai treatment group, the levels of CK-MB, NT-proBNP were decreased continuously after treatment, cTnT was firstly increase and then decrease, and reached to the lowest revels after 7 days of treatment while the levels of LVEF, SV and CO were firstly decreased and then increased gradually, and reached to the highest levels after 7 days of treatment; compared with those of conventional therapy control group, the levels of CK-MB, cTnT, NT-proBNP in Shenmai treatment group were significantly lower after 3 and 7 days of treatment [3 days of treatment: CK-MB (U/L)was 51±1 vs. 82±3, cTnT (μg/L) was 2.5±0.3 vs. 3.9±0.2, NT-proBNP (ng/L) was 5 810±103 vs. 15 965±152;7 days of treatment: CK-MB (U/L) was 27±2 vs. 56±3, cTnT (μg/L) was 1.2±0.3 vs. 2.9±0.2, NT-proBNP (ng/L) was 2 834±123 vs. 4 832±76], while LVEF, SV and CO were significantly higher than those in conventional therapy control group [3 days of treatment: LVEF was 0.47±0.03 vs. 0.45±0.02, SV (mL) was 45±5 vs. 39±4, CO (L/min) was 3.7±0.2 vs. 3.6±0.2; 7 days of treatment: LVEF was 0.59±0.02 vs. 0.51±0.03, SV (mL) was 55±4 vs. 45±2, CO (L/min) was 5.3±0.3 vs. 4.6±0.4, all P < 0.05]. After CPR, arrhythmia developed in the patients of two groups, and compared with that before treatment, there was no statistical significant difference in the incidence of arrhythmia after 1 day of treatment in Shenmai treatment group (all P > 0.05); the incidence of arrhythmia was decreased significantly after 3 and 7 days of treatment compared with those before treatment, reached to the lowest level on the 7th day of treatment, and the degree of decrease of incidence of arrhythmia in Shenmai treatment group was more obvious than those of the conventional therapy control group [ventricular tachycardia: 9.4% (3/32) vs. 20.0% (6/30), VF: 9.4% (3/32) vs. 20.0 % (6/30), atrial ventricular block: 18.8% (6/32) vs. 36.7% (11/30), all P < 0.05]. Conclusions Shenmai injection has certain protective effect on injured myocardium in patients undergoing CPR, the mechanism is possibly related to reducing the levels of CK-MB,cTnT, NT-proBNP and further improving the LVEF, SV and CO.
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OBJECTIVE:To observe clinical efficacy and safety of edaravone combined with butyl phthalide in the treatment of acute ischemic stroke (AIS). METHODS:258 AIS patients were randomly divided into observation group and control group, with 129 cases in each group. Both groups were given routine treatment as antiplatelet,improving microcirculation,controlling blood pressure,lowering blood glucose,regulating blood lipid,keeping plaque stable,nourishing brain cells. Control group was additionally given Butyl phthalide capsules orally,200 mg,tid. Observation group was additionally given Edaravone injection 30 mg added into Sodium chloride injection 100 ml,ivgtt,bid,on the basis of control group. Both groups continuously received 14 days of treatment. The serum inflammatory factor,miR-222 and neurologic impairment score of 2 groups were observed before treatment,7,14 d after treatment. Clinical efficacies and the occurrence of ADR were compared between 2 groups. RESULTS:There was no statistical significance in the serum inflammatory factor,miR-222 and neurologic impairment score between 2 groups before treatment(P>0.05). The serum inflammatory factor and neurologic impairment score of 2 groups were decreased significant-ly 7,14 d after treatment,while serum levels of miR-222 were increased significantly;the observation group was significantly bet-ter than the control group,with statistical significance(P<0.05). Total effective rate of observation group was 92.2%,which was significantly higher than that of control group (69.8%),with statistical significance (P<0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:Edaravone combined with butyl phthalide is effective in the treatment of AIS,and can significantly de-crease serum inflammatory factor level,promote the expression of miR-222 and improve neurologic function with good safety.
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Graphene/Room temperature ionic liquids ( GN/IL ) nanocomposite was prepared by grinding graphene and ionic liquid 1-butyl-3-methylimidazolium bromide ( BMIMPF6 ) which mixed together in appropriate proportion. Atomic force microscopy ( AFM ) was utilized to characterize the formation of the GN-ILs. Due to the synergistic effect between ionic liquids and graphene, the nanocomposite exhibited excellent performance toward H2 O2 reduction. A novel uric acid ( UA) electrochemical sensor was fabricated based on uricase-GN/IL modified glassy carbon electrode. The experimental results showed that the response displayed a good linear response toward UA in the concentration range from 0. 002-4. 5 mmol/L. The corre1ation coefficient was 0. 995 and the detection limit was 0. 85 μmol/L. The easily prepared electrochemical sensor had favorable stability and selectivity and could be applied to the quick determination of UA in human serum, thus providing a new UA detection method for clinical trial.
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Atomic force microscope (AFM) has become a well-established technique for biological sample imaging under physiological conditions. The unique capacity to produce nanometer scale resolution images with simple specimen preparation enables AFM to serve as a powerful tool in neurobiology research. Extensive studies suggest that the conversion of beta-amyloid (Abeta) peptide from soluble forms into fibrillar structure is a key factor in the pathogenesis of Alzheimer's disease (AD). AFM has provided useful insights at all stages of Abeta fibrillization, thus making therapeutic strategy possible. In this brief review, the principles and techniques of AFM and their effects on the pathogenetic study of AD, especially on the study of Abeta and Abeta oligomer are outlined.
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Humans , Alzheimer Disease , Metabolism , Pathology , Amyloid beta-Peptides , Metabolism , Microscopy, Atomic ForceABSTRACT
Objective To investigate the therapeutic action of Taurine in patients with cerebral infarction(CI)induced by hyperhomocysteinemia(Hhcy).Methods The 100 CI patients induced by Hhcy were randomly divided to two therapy groups.One group was administered Taurine,the other group was administered Folacin combined with Vitamine B12 for 8 weeks.Before and after treating,the serum levels of homocysteic acid(Hcy),Folacin and Vitamine B12 were detected,NIHSS and BI were evaluated.Results The serum levels of Hcy were significantly decreased after administering in both two groups(all P