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AIM: To assess the effect of curcumin in hypothalamic paraventricular nucleus (PVN) and mean arterial pressure so as to explore the central mechanism of hypertension. METHODS: Sixty Sprague-Dawley rats which body weights between 170 and 190 grams fed with a normal salt (0.3% NaCl) or a high salt (8% NaCl) diet for 6 weeks. Meanwhile half of each team received curcumin administration or vehicle by intragastric administration. Mean Arterial pressure was measured noninvasively via tail-cuff instrument and their recording system. The PVN tissue samPles were collected and stored at −80 °C for later analyses. We performed the following experimental procedures: Western blot analysis, immunofluorescence, immunofluorescence and statistical analysis. RESULTS:The average arterial blood Pressure of rats in the high-salt diet group was significantly reduced after 6 weeks of curcumin intervention. The levels of NOX2, NOX4, TLR4, MyD88, IL-6, IL-1β, MCP-1 and ROS in the long-term high-salt diet grouP were significantly higher after curcumin intervention. CONCLUSION:Curcumin can improve blood pressure in hypertensive rats induced by long-term high salt, the mechanism may be related to the imProvement of oxidative stress and inflammatory cytokines in the paraventricular nucleus of the hypothalamus.
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Objective To investigate the relationship between serum inflammatory cytokines and atherosclerosis in type 2 diabetic patients with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods One hundred and three patients with type 2 diabetes were divided into OSAHS group (OSAHS group) and type 2 diabetes mellitus group (non-OSAHS group) according to the results of polysomnography(PSG),and 35 healthy subjects were selected as control group.Serum levels of total cholesterol,triglyceride,fasting plasma glucose(FPG),glycosylated hemoglobin(HbA1c),tumor necrosis factor-α(TNF-α),high-sensitivity C-reactive protein (hs-CRP) and carotid intima-media thickness (IMT) were measured,and their relationship with OSAHS were analyzed.Results The waist circumference,BMI,FPG,HbA1c,IMT,TNF-α and CRP in OSAHS group were significantly higher than those in non-OSAHS group (P＜0.05).Logistic regression analysis showed that,IMT was independently associated with TNF-α and hs-CRP.Conclusion Patients of T2DM with OSAHS have poor blood glucose control and higher incidence of atherosclerosis.High levels of TNF-α and hs-CRP may be involved in the formation of atherosclerosis and plaque occurrence and development.
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Objective:To establish a quantitative analysis of multi-components by single marker ( QAMS) method for the determi-nation of six components ( phillyrin, schizandrol, schisandra ester, deoxyschizandrin, schisandrin B and schisandrin C ) in Liuwei Wuling tablets,and verify the accuracy and feasibility of the method applied in the preparation. Methods:The relative correction factor ( f) of schisandrin B, schisandrin C, schisandra ester, schizandrol, phillyrin and deoxyschizandrin was detected by HPLC at the detec-tion wavelength of 230nm, and the contents of the components in Liuwei Wuling tablets were calculated to achieve the multi evaluation. Meanwhile, the contents of the six components were analyzed by an external standard method and the relative error between the calcula-tion of QAMS method ( Wf ) and the result of the external standard method ( Ws ) was calculated to verify the accuracy of QAMS. The reproducibility of the method was also investigated. Results:The QAMS method was established to determine the contents of 6 compo-nents in Liuwei Wuling tablets, and the components in 10 batches of Liuwei Wuling tablets were determined. The differences between the calculated values and the measured values were small ( RSD < 5%) . Conclusion:The QAMS method is simple, effective and ac-curate in determining the contents of 6 effective components in Liuwei Wuling tablets. The quality evaluation model of QAMS for Liuwei Wuling tablets is validated, which can be used for the quality control of Liuwei Wuling tablets and provide reference for the further study.
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Objective:To simultaneous determine six flavonoids in Shuxuening injection by quantitative analysis of multi-compo-nents by single marker ( QAMS) and examine the durability and system suitability of the analysis. Methods:Shuxuening injection was the study object and rutin was used as the internal material, the relative correction factor ( f) between rutin and narcissus glycosides, quercetin-3-O-β-D-glucosyl (1-2)-α-L- rhamnoside, kaempferol-3-O-β-D-glucose group (1-2)-α-L-rhamnopyranoside, quercetin-3-O-[2-O-(1-O)-p-coumaric acid-β-D-glucose-yl]-α-L-rhamnoside, kaempferol-3-O-[2-O-(6-O)-on coumaroyl-β-D-glucose-based]-α-L-rhamnosides was respectively established. The result differences between the internal standard method and external standard method were compared, and the internal standard method was re-validated. Results: The contents of the six flavonoids in Shuxuening injection were calculated by the correction factors. Compared with those of the external standard method, the differences in the contents of the method were small( RSD<5%) . Conclusion:QAMS can be used as a simple and accurate quantitative quality evaluation meth-od for the determination of a variety of ingredients in Shuxuening injection, which provides reference for the subsequent study on quality standard.
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Objective To explore the changes of plasma fibrinogen ,plasminogen and D-dimmer before and after thrombolytic therapy in patients with acute myocardial infarction (AMI) ,to provide the evidence for treatment and prognosis AMI .Methods 93 cases of patients with AMI were divided into twe groups ,reperfusion group of 77 cases ,obstract group of 16 cases .At the same pe-riod ,30 cases myocardial infarction of patients with non thrombolytic therapy were selected as control group .The levels of plasma Fib ,Plg and D-dimer in each group were detected at different times .Results The levels of Fib and D-D in AMI patients were higher than those in the control group before thrombolysis therapy (P<0 .05) .Compared with before thrombolysis therapy ,the Fib and Plg levels of AMI patients were decreased significantly after thrombolytic therapy 6 h(P<0 .01) ,and returned to the normal level after 48 h .The D-dimmer level of AMI patients was increased significantly after thrombolytic therapy 6 h(P<0 .01) ,and returned to the normal level after 7 d .After thrombolytic therapy 6 h ,the levels of Fib and Plg of reperfusion group were decreased signifi-cantly(P<0 .05) ,the level of D-dimmer was increased significantly (P<0 .05) .Conclusion The levels of plasma fibrinogen ,plas-minogen and D-dimmer have important reference value for monitor the thrombolytic therapy effect in patients with AMI .
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Senecio scandens Buch.-Ham. , also called Jiuliming, is a plant of Senecio cruentus. It mainly contains alkaloids,phe-nolic acids,flavonoids,volatile oils,terpenoids and the other ingredients, and the main pharmacological effects include antibiosis,anti-inflammation,anti-virus, antitumor, antioxidation and free radical scavenger, toxicological effects and so on. The study progress in chemical constituents and pharmacological effects of Senecio scandens Buch.-Ham. was reviewed in the paper to provide available infor-mation for more research.
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[Objective]This study was designed to investigate the genetic evolution of the neuraminidase(NA)gene of seasonal A/H1N1 and 2009 novel A/H1N1 inflilenza virus,and discuss the genetic variation of influenza A virus.[Methods]The virus strains were separately isolated from the clinical samples collected in 2006 and 2009,and then identified as seasonal A/H1N1 and novel A/H1N1.The full length of the NA gene of these strains was amplified by RT-PCR.Then the genetic evolution and mutations of important functional sites were analyzed.[Results]The homology of NA gene between the 2009 novel A/H1N1 isolates and 2006 seasonal A/H1N1 isolates was low(77.9%～78.8%),so was the homology of NA gene between the 2009 novel A/H1N1 isolates and representative strains of different periods and 1979-2001 WHO recommended vaccine strains(78.1%～79.3%).But compared with the WHO recommended vaccine strains of 2009 novel A/H1N1,the homology reached more than 99%.The genetic evolution analysis revealed that NA gene of 2009 novel A/H1N1 had the closest genetic relationship with the swine influenza A virus(A/swine/Belgium/1/1983)from Eurasian Iineage,and some of the antigenic sites and neuraminidase active sites of NA gene of seasonal A/H1N1 were mutated after 2005.[Conclusion]The NA gene of 2009 novel A/H1N1 may originate from Eurasian Iineage of swine influenza virus.The variation of NA gene of seasonal A/H1N1 has occurred in a certain degree.Hence,it is very necessary to continuously monitor the variant of influenza A virus.
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Objective To investigate the effect of psychological abuse in childhood on the personality of undergraduates with depression as well as its possible mechanism, and thus provide scientific evidence for the intervention of depression in undergraduates. Methods Particinants were 733 undergraduates from a university in Henan Province. They were surveyed with Center for Epidemiological Studies-Depression scale (CES-D), childhood experience of care and abuse questionnaire (CECA. Q) and Eysenck personality theory (EPQ). Results the correlation between maternal antipathy and introversion-extroversion of personality;psychological abuse in childhood had apparently positive correlation with the depression in undergraduates (r = 0. 257, r = 0. 304, r =0. 243, P＜ 0. 01) and that of childhood maternal neglect to psychoticism (β = 0.206, P＜ 0.01) were positive and significant. The standard regression coefficients of paternal neglect to introversion-extroversion (β= -0. 143, P＜0. 01)were negative and significant . The scores of childhood paternal antipathy and maternal antipathy explained that childhood paternal antipathy had indirect effect via adulthood neuroticism on the depression in undergraduates,furthermore, the indirect effect demonstrated 59.8% of the total effect. Conclusion This study suggests that the personality of undergraduates with depression is affected directly by psychological abuse in childhood, and adulthood personality may mediate the relation between childhood psychological abuse and adulthood depression.
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Objective To observe the effects of Huoxue Xifeng Decoction (HXD) on endothelin-1 (ET-1) and nitric oxide (NO) levels in the blood and brain tissue of focal cerebral infarction (FCI) rats. Methods Forty male Wistar rats were randomized into 5 groups:sham-operation, FCI model and HXD-high, HXD-middle, HXD-low dose groups, with 8 rats in each group. The model of FCI rats was established by photo-chemistry method, and intragastric administration were continue 7 days before operation. HXD-high, HXD-middle, HXD-low dose groups were given HXD 20, 10, 5 g/(kg?d) respectively, and other groups were given the same volume distilled water. Blood and brain tissue samples were gotten 24 h after operation, and radio-immunity method was used to measure ET-1 level, spectrophotometric method was used to measure NO level. Results Compared with FCI model group, HXD decreased ET-1 level in plasma and brain tissue after infarction, and decreased NO level in the brain tissue, increased NO level in serum (P