ABSTRACT
A chemical investigation on the aqueous extract of Corydalis yanhusuo tubers led to the isolation and structural elucidation of three pairs of trace enantiomeric hetero-dimeric alkaloids, (+)/(-)-yanhusamides A-C ( 1- 3), featuring an unprecedented 3,8-diazatricylco[5.2.2.02,6]undecane-8,10-diene bridged system. Their structures were exhaustively characterized by X-ray diffraction, comprehensive spectroscopic data analysis, and computational methods. Guided by the hypothetical biosynthetic pathway for 1- 3, a gram-scale biomimetic synthesis of (±)- 1 was achieved in 3 steps using photoenolization/Diels-Alder (PEDA) [4+2] cycloaddition. Compounds 1‒3 exhibited potent inhibition of NO production induced by LPS in RAW264.7 macrophages. The in vivo assay showed that oral administration of 30 mg/kg of (±)- 1 attenuated the severity of rat adjuvant-induced arthritis (AIA). Additionally, (±)- 1 induced a dose-dependent antinociceptive effect in the acetic acid-induced mice writhing assay.
ABSTRACT
Chronic heart failure (CHF) is a severe public health problem with increasing morbidity and mortality, any treatment targeting a single session is insufficient to tackle this. CHF is characterized by reduced cardiac output resulting from neurohumoral dysregulation and cardiac remodeling, which might be related to oxidative stress, inflammation, endoplasmic reticulum stress, apoptosis, autophagy, mitochondrial function, and angiogenesis. These molecular mechanisms interact with each other through crosstalk. Historically, Chinese medicinal herbs have been widely applied in the treatment of CHF, and therapeutic effects of Chinese medicinal herbs and their ingredients have been scientifically confirmed over the past decades. Traditional Chinese medicine (TCM) with multiple components can confront the different pathogenesis of CHF through multiple targets. This review analyzes commonly used TCM patent drugs and TCM decoctions that are applicable to different stages of CHF based on clinical trials. Diverse bioactive ingredients in Chinese medicinal herbs have been found to treat CHF via multiple molecular mechanisms. This review comprehensively covers the key works on the effects and underlying mechanisms of TCM, herbal ingredients and synergistic effects of constituent compatibility in treating CHF, providing additional ideas to address this threat.
ABSTRACT
Objective To observe the risk factors of in-hospital mortality in patients with acute myocardial infarction complicated with cardiogenic shock after primary percutaneous coronary intervention (PCI).Methods Totally 111 cases of acute myocardial infarction complicated with cardiogenic shock received acute PCI from 2009 to 2015 in Beijing Anzhen Hospital were enrolled.The cases were divided into the in-hospital death group (31 cases) and the in-hospital survival group (80 cases).The general information,clinical indicators,range of myocardial infarction,coronary lesions and management,complications,drug treatment and equipment assistance of the two groups were compared,and logistic regression analysis was used to analyze the risk factors of in-hospital mortality.Results The proportions of age ≥ 75 years,hyperlipidemia,serum creatinine ＞ 110 μmol/L,LVEF ＜ 40％,anterior myocardial infarction,three-vessel lesions of coronary artery,post-PCI TIMI flow grade ＜3,acute liver injury and acute kidney injury in the in-hospital death group were significantly higher than those in the in-hospital survival group (P ＜ 0.05).The proportion of IABP used in the in-hospital death group was significantly higher than that in the in-hospital survival group (P ＜ 0.05).There were no significant differences in the distribution of culprit lesion and the treatment of stenoses in nonculprit arteries between the two groups (P ＞ 0.05).Multivariate logistic regression analysis showed that age ≥ 75 years,threevessel coronary lesions,post-PCI TIMI flow grade ＜3 and acute renal injury were independent risk factors for hospital mortality (P ＜ 0.05).Conclusions Age ≥ 75 years,three-vessel lesions of coronary artery,post-PCI TIMI flow grade ＜3 and acute kidney injury were independent risk factors of in-hospital death in patients with acute myocardial infarction complicated with cardiogenic shock after primary PCI.
ABSTRACT
Objective To investigate the effects of neurolytic celiac plexus block(NCPB) on stress response during the early stage of partial hepatectomy(PH) postoperation in rats.Methods Thirty healthy SPF-grade male Sprague-Dawley rats were randomly divided into control group and NCPB group,and then were constructed the 70％ PH model.NCPB group received NCPB with 0.5 ％ lidocaine before closing abdominal,and control group received the same procedures,but 0.9％ physiological saline was injected instead of 0.5 ％ lidocaine.The serum concentration of CRP,GC,ACTH,NA and AD,and the levels of serum TNF-α and IL-1β were determined at 6 hours,12 hours and 24 hours after PH.The western blot assay was performed to examine the expression of GR in the peripheral blood mononuclear cells (PBMCs).Results The obvious stress response was produced within 24 hours after PH in rats,postoperative serum CRP,GC,ACTH,NA and AD concentrations increased in the different extent,but the NCPB group were significantly lower than those in the control group in the corresponding time point (P ＜0.01 or P ＜0.05).The expression levels of GR in PBMCs in the control group were significantly decreased after PH,and markedly lower than those in the NCPB group in the corresponding time point(P ＜ 0.01).The serum TNF-o and IL-1β levels were gradually increased in the control group and NCPB group within 24 hours after PH.But at the respective time points,the levels in the NCPB group were significantly lower than those in control group(P ＜ 0.01 or P ＜ 0.05).Conclusion Intraoperation NCPB can effectively inhibit postoperative stress response at the early stage after PH,and thereby help to reduce the degree of systemic inflammatory response.
ABSTRACT
Objective To provide clinical experience in treatment of cook′s fungus infection of evidence‐based medical evidence , separation of medical environment of cook′s bacteria identification and antimicrobial susceptibility test .Methods Collected in the hospital infection of hygiene monitoring ,collection and medical staff hands ,skin and mucous membrane ,air and object surface sam‐ples from 86 strains of cook ,application ATB Expression semi‐automatic bacteria identification of susceptibility analyzer supporting article try ID32 Staph identification and drug susceptibility test Staph 5 ,strain identification and drug sensitive test .Results 86 strains bacteria identification cook 62 strains bacteria ,mutation detection rose cook bacteria strains of 16 ,cook eight strains of bac‐teria .Cook bacterium of norfloxacin(16 .3% ) ,and with nitrofurantoin low because of the sensitive rate(20 .9% ) ,of erythromycin (69 .3% ) and gentamycin(67 .4% ) ,the sensitive rate at nearly 70 .0% ,sensitivity to penicillin and other 12 kinds of antimicrobial a‐gents more than 80 .0% ,even 100 .0% .Conclusion Cook for most still sensitive ,clinicians and microorganism inspection personnel should strengthen the cook .
ABSTRACT
Objective: To observe the effect of ivabradine (IVA) on atrial and ventricular monophasic action potential duration (MAPD) and its proarrhythmic action at presence of sea anemone toxin-II (ATX-II) in isolated rabbit heart modelin vitro. Methods: The perfusion of isolated heart from female New Zealand white rabbit was conducted by Langendorff method in vitro. Left atrial and left ventricular endo- , epi-cardial action potential were recorded when pacing with ifxed frequency of 350 ms (in correspondence with the heart rate of 171 times/min) to observe the effect of IVA alone and ATX-II (3 nmol/L) with IVA on MAPD90. In addition, to observe the action of IVA alone and ATX-II with IVA on proarrhythmia when IVA reducing the heart rate to autonomous cardiac rhythm as (156±10) times/min. Results: IVA at (3-10) μmol/L prolonged atrial and ventricular endo- , epi-cardial MAPD90 by (15.9 ± 2.0) ms, (31.5 ± 4.0) ms and (23.9 ± 3.0) ms (n=6,P<0.01), respectively. ATX-II at 3 nmol/L prolonged atrial and ventricular MAPD90 by (36.5 ± 5.0)ms and (19.9 ± 3.0) ms, (19.5 ± 4.0) ms (n=6,P<0.01) respectively. With ATX-II treatment, IVA at (6-10) μmol/L decreased atrial MAPD90 by (14.4 ± 4.0) ms (n=6,P<0.01), it induced atrial arrhythmia. With 3 nmol/L of ATX-II treated ventricle, IVA at (3-10) μmol/L obviously prolonged endo- and epi-cardial MAPD90 by (36.2 ± 7.0) ms and (27.5 ± 5.0) ms(n=6,P<0.01), respectively. IVA didn’t increase ventricular beat-to-beat variability and transmural dispersion of MAPD90 no matter with or without ATX-II treatment, no ventricular arrhythmia occurred. Conclusion: IVA prolongs both atrial and ventricular MAPD, with increased late sodium current, IVA may induce atrial arrhythmia but not ventricular arrhythmia in experimental rabbits in vitro.
ABSTRACT
Objective To investigate the effect of oleanolic acid (OA) on apoptosis, correlation between apoptosis and intracellular calcium, and its mechanism in human lung adenocarcinoma cell line A549. Methods Human lung adenocarcinoma A549 cells were incubated in vitro and assigned with OA concentrations of 0, 10, 20 and 40μg/mL. The apoptosis status of A549 cell line was detected with Annexin V-FITC/PI by flow cytometry (FCM); fluorescence intensity (FI) of A549 cells was assessed and the level of intracellular calcium was calculated at 24 hour of OA intervention. The relation between apoptosis and calcium FI was illustrated by curve fitting. Results FCM showed that 10, 20 and 40μg/mL of OA could induce A549 cell apoptosis, which followed a concentration-effect pattern; 24-hour intervention with 20μg/mL and 40μg/mL OA showed increased A549 cell apoptosis, and was significantly different from that with 0μg/mL OA (P<0.01). The FI of intracellular calcium concentration in 10, 20 and 40μg/mL OA groups was significantly higher than that in 0μg/mL group after 24 hours' intervention, and the FI showed a trend of increase with increased OA concentration (P<0.01). Curve fitting showed a significant correlation between apoptosis rate and intracellular calcium concentration in A549 cells (r=0.981, P<0.01). Regression equation was Y=0.508X-1.627. Conclusion OA plays a role in inducing apoptosis of human lung adenocarcinoma cells in a concentration-dependent manner. The OA-induced apoptosis is responsible for intracellular calcium overload of the tumor.
ABSTRACT
Objective To investigate the changes in lung resistance-related protein (LRP) and vascular endothelial growth factor (VEGF) expressions and micro-vessel density (MVD) in non-small cell lung cancer (NSCLC), and to elucidate their possible relationship and mechanism. Methods Immunohistochemistry was used to detect changes in LRP and VEGF expressions, and MVD level in lung tissues of 56 NSCLC cases and 27 normal controls. Results ① LRP expression (66.1%) was concentrated in the cytoplasm of cancer cells, which was significantly higher than that in lung tissues of control group (P<0.01); the significance was not related to the pathological type. There was no significant difference in LRP expression among gender, TNM stage, lymph node metastasis, and two-year survival in NSCLC (P>0.05). ② In comparison to the control group, NSCLC group had significantly increased VEGF expression (P<0.01), which was not related to the pathological type. VEGF expression in NSCLC group had a significant association with TNM stage and lymph node metastasis (P<0.05). ③ The NSCLC group had a significantly higher MVD than the control group (P<0.01), which was not affected by the pathological type or degree. MVD value (18.5±5.8) of stage Ⅲ and Ⅳ in NSCLC group was significantly higher than that (13.8±5.1) of stage Ⅰ (P<0.05); MVD value for patients with lymph node metastasis was higher than that without lymph node metastasis (P<0.05); MVD value for patients with two-year survival was less than those who died within two years (P<0.01). ④ NSCLC group with high VEGF and LRP expressions had a consistently increased MVD value (P<0.05). Conclusion There is a certain relationship between tumor angiogenesis and LRP expression in NSCLC. VEGF is responsible for the high expression of LRP through up-regulating LRP gene and augmenting tumor MVD. Inhibition of angiogenesis in tumor is expected to reduce or inhibit drug resistance to NSCLC.
ABSTRACT
BACKGROUND:Treatment methods of pterygium mainly include pterygium excision,pterygium excision combined with local application of mitomycin,pterygium excision combined with conjunctival flap transfusion and pterygium excision combined with autologous corneal limbus stem cell transplantation.Dry eye commonly occurred in many patients following pterygium excision.OBJECTIVE:To evaluate the effects of stem cell transplantation of limbus cornea and simple excision of pterygium on tear film stability.METHODS:Eighty patients(eighty eyes)with pterygium were involved in this clinical experiment.All patients were randomly divided into 2 groups:Group A accepted simple excision of pterygium in 40 patients with 40 eyes under a 10-fold microscope,and Group B accepted excision of pterygium with stem cell transplantation of limbus cornea in 40 patients with 40 eyes under a 10-fold microscope,in which a free transplantation of the superotemporal limbus stem with an adjacent piece of conjunctiva was transplanted in the excision area.Slit-lamp examination,tear film break-up time and questionnaire on dry eye were performed before operation,at one week post-operation,and at three months post-operation.RESULTS AND CONCLUSION:In both groups,following surgery,some patients affected dryness,foreign body sensation,burning sensation.These symptoms were more in the group A compared with group B(P ＜ 0.05).Implant was red 1 week following surgery in the group B,and confluence was found,without infection or rejection.The tear film break-up time was prolonged in the group B compared with the group A at 1 week following surgery,and no significant difference was determined at 3 months.Results indicated that compared with simple excision of pterygium,combined excision of pterygium with stem cell transplantation of limbus cornea obtained better outcomes,and could decrease the manifestations of dry eye and maintain better tear film stability in patients with pterygium.
ABSTRACT
Objective: To observe the effects of electroacupuncture combining with behavior therapy on the adaptive behavior ability in children with autism. Methods: Sixty children with autism were divided into a treatment group and a control group with 30 cases in each group. Children in the treatment group were treated with electroacupuncture and behavior therapy, and children in the control group with behavior therapy. The adaptive behavior quotient (ABQ) and the effects were evaluated with adaptive behavior scale before and after treatments. Results: After treatments, ABQ in the treatment group was higher than before treatments (P<0.05), and the difference (6.15±5.412) was higher than that in the control group (3.20±4.348) with a significant difference (P<0.05). The adaptive behavior ability in the treatment group was better than that in the control group (P<0.05). Conclusion:Electroacupuncture combining with behavior therapy can significantly improve the adaptive behavior ability in children with autism.
ABSTRACT
Objective To evaluate the diagnostic value of transbronchial lung biopsy (TBLB) via bronchoscope for lung diffuse lesions and peripheral pulmonary lesions. Methods The results of TBLB were retrospectively analyzed from 256 diagnoses of unknown patients with lung diffuse lesions or peripheral lung lesions. Results Eighty-nine final diagnosis cases via TBLB only once, the diagnostic rate of double lung diffuse lesions was the highest, [51.06% (24/47)], local non-nodule lesions, nodule lesions, cavity lesions were 33.33%(23/69), 29.91%(35/117), and 28.57%(4/14), respectively. Among 24 diagnostic cases of double lung diffuse lesions, there were 6 cases of pneumonia of pulmonary tuberculosis, 9 cases of lung carcinoma, 7 cases of adenecarcinoma; 6 cases of pneumonia, 2 cases of fungous infection, and 1 case of lung hemosiderusis. The diagnostic yield about 58 cases of local lesions was low, among which non-nodule lesions accounted for 33.33% and nodule lesions accounted for 29.91%. In 89 cases of peripheral lung lesions with histological diagnosis, lung carcinoma and pulmonary tuberculosis were frequent diseases, which accounted for 86.52%. Conclusion TBLB is a reliable, safe, effective and repeatable operation method in diagnosis of lung diffuse lesions and peripheral pulmonary lesions.
ABSTRACT
The peripheral blood T- lymphocyte percentage, lympocyte percentage in white blood cell (WBC) of mice in heat environment (45C, 15 min) were diminished, and serum corticosterone increased. Ginseng root saponins (GRS) 50, 100 mg/kg were administered ip at 15 min before the heat-stress, the suppression of peripheral blood T-lymphocyte percentage were prevented, but could not inhibit the increase ofserum corticosterone. GRS 50mg?kg-1ip could inhibit the redution of peripheral lymphocyte percentage. GRS 50mg?kg-1 ,reserpine 0.5mg? kg-1or physostigmine salicylate 0.3 mg?kg-1ip abolished the inhibiting effect of heat-stress on DTH reaction in mice.
ABSTRACT
Objective To investigate the effect of at-RA in macrophage accumulation in tubulointerstitium of rats with renal tubulointerstitial fibrosis.Methods Unilateral ureteral obstructive(UUO) rat animal models were used for the study.40 SD rats were randomly divided into 5 groups: sham group,UUO group,benazepril group,low-dose at-RA groups and high-dose at-RA groups.The rats were under intragastric administration by benazepril(10mg/(kg?d)) in benazepril group,and by(at-RA)(10mg/(kg?d)) in low-dose at-RA group and 20mg/(kg?d) in high-dose at-RA group and by sodium chloride in tales doses in sham group and UUO group from the day before the operation to 14 day after operation.Immunohistochemistry staining of CD68 and Col Ⅲ was used to define the macrophage accumulation and expression of interstitial Col Ⅲ.The degree of tubulointerstitial damage was scored by HE and Masson staining.Results Tubulointerstitial macrophage infiltration were all significantly reduced by(at-RA) or benazepril treatment.They also improved the histological changes of UUO rats and inhibited interstitial colⅢ deposition.Conclusion Reduction of interstitial macrophage infiltration may be an important event by which(at-RA) or benazepril prevents renal injury caused by UUO.