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Polysaccharides exhibit multiple pharmacological activities which are closely related to their structural features.Therefore,quantitatively quality control of polysaccharides based on their chemical charac-teristics is important for their application in biomedical and functional food sciences.However,poly-saccharides are mixed macromolecular compounds that are difficult to isolate and lack standards,making them challenging to quantify directly.In this study,we proposed an improved saccharide mapping method based on the release of specific oligosaccharides for the assessment of Hericium eri-naceus polysaccharides from laboratory cultured and different regions of China.Briefly,a polysaccharide from H.erinaceus was digested by β-(1-3)-glucanase,and the released specific oligosaccharides were labeled with 8-aminopyrene-1,3,6-trisulfonic-acid(APTS)and separated by using micellar electrokinetic chromatography(MEKC)coupled with laser induced fluorescence(LIF),and quantitatively estimated.MEKC presented higher resolution compared to polysaccharide analysis using carbohydrate gel elec-trophoresis(PACE),and provided great peak capacity between oligosaccharides with polymerization degree of 2(DP2)and polymerization degree of 6(DP6)in a dextran ladder separation.The results of high performance size exclusion chromatography coupled with multi-angle laser light scattering and refractive index detector(HPSEC-MALLS-RI)showed that 12 h was sufficient for complete digestion of polysaccharides from H.erinaceus.Laminaritriose(DP3)was used as an internal standard for quantifi-cation of all the oligosaccharides.The calibration curve for DP3 showed a good linear regression(R2＞0.9988).The limit of detection(LOD)and limit of quantification(LOQ)values were 0.05 μg/mL and 0.2 μg/mL,respectively.The recovery for DP3 was 87.32(±0.03)％in the three independent injections.To sum up,this proposed method is helpful for improving the quality control of polysaccharides from H.erinaceus as well as other materials.
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Cordyceps is a famous traditional Chinese medicine (TCM) that has been used in China for hundreds of years. In the present study a multi-column liquid chromatography (MC-LC) system was developed for the qualitative analysis of macromolecules and micromolecules in Cordyceps. The MC-LC system includes a size exclusion pre-column, a size exclusion column (SEC) and a reversed phase column (RP) which were controlled by column-switching valves. The sample was separated by the size exclusion pre-column into two fractions (macromolecules and micromolecules). These fractions were further separated on SEC and RP columns, respectively. A diode array detector (DAD) and a mass spectrometer (MS) were used to detect the components. This MC-LC method was utilized for analysis of Cordyceps samples. Two macromolecular peaks and 15 micromolecular peaks were found in Cordyceps, and 11 of the micromolecular peaks were identified as adenosine-5'-monophosphate (AMP), phenylalanine, uridine, hypoxanthine, inosine, guanine, guanosine, deoxyadenosine-5'-monophosphate (dAMP), adenosine, adenine and cordycepin (or its isomer). This method is useful for quality control of Cordyceps.
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Objective To investigate the effects of β-Elemene on the apoptosis of human pancreatic cancer Panc-1 cells; To discuss its mechanism of action. Methods β-Elemene (10, 20, 40, 80, 160 μg/mL) were incubated to the Panc-1 cells in vitro cultured for 24 h, 48 h and 72h, and trypan blue refusal method was used to detect cell inhibition rate;Apoptosis rate was measured by TUNEL; Hoechst33258 fluorescent staining was used to observe the changes of the nucleus. The activity of Caspase-3, 8 and 9 were detected by ELISA. Western blot was used to detect the expressions of Fas, FasL and Cyt c and AIF. Results The activity of Panc-1 cells was obviously inhibited time/concentration dependent inhibition (P<0.05, P<0.01), and the apoptosis rate increased after incubated with β-Elemene (P<0.01, P<0.001) after incubated with β-Elemene for 24 h, 48 h and 72 h; After giving β-Elemene 72 h, Panc-1 cells nucleus were broken obviously, and chromatin condensed and showed strong blue fluorescence, along with of apoptotic bodies; After incubated with β-Elemene for 48 h, Caspase-3, 8 and 9 activity significantly increased (P<0.05, P<0.01); protein expressions of Fas, FasL, Cyt c and AIF were significantly enhanced (P<0.05, P<0.01, P<0.001). Conclusion β-Elemene can inhibit Panc-1 cell proliferation, induce apoptosis, and the mechanism may be related to activating cell death receptor pathway and mitochondrial apoptosis pathway to play anti-tumor effects.
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In this work, a fast and efficient microwave-assisted extraction (MAE) method was developed to extract main bioactive alkaloids from lotus plumue. To optimize MAE conditions, three main factors were selected using univariate approach experiments, and then central composite design (CCD). The optimal extraction conditions were as follows: methanol concentration of 65%, microwave power of 200 W, and extraction time of 260 s. A high performance liquid chromatography–diode array detector (HPLC–DAD) method was established to quantitatively analyze these phytochemicals in different lotus plumule samples and in different part of lotus. Chromatographic separation was carried out on an Agilent Zorbax Extend-C18 column (4.6 mm×150 mm, 3.5 μm). Gradient elution was applied with the mobile phase constituted with 0.1%triethylamine in water (A) and acetonitrile (B): 40%?70% B at 0?8 min, 70%?100% B at 8–9 min, 100% B for 2 min, and then equilibrated with 40%B for 2 min.
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Objective To explore effects of comfort nursing on anxiety, depression and comfort of surgical patients.Methods Comfort nursing was done to 128 surgical patients, including physical comfort, psychological comfort and social comfort and self-designed questionnaire was made to investigate the comfort of patients during operation. When the patients were hospitalized and after operation, patients’physical states were evaluated with self-rating depression scale(SDS)and self-rating anxiety scale(SAS).Results The score of patients’comfort was (6.5±0.2)and the SDS and SAS were lower than that of patients when hospitalized with statistical difference(P<0.05).Conclusion Comfort nursing can reduce anxiety, depression and increase comfort of surgical patients.
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<p><b>OBJECTIVE</b>To study the morphological variations of Paris polyphylla var. yunnansensis in different population for genetic diversity and breeding.</p><p><b>METHOD</b>The characters of roots, stalks, leave and flowers were observed. The results were analyzed by DPS software.</p><p><b>RESULT AND CONCLUSION</b>P. polyphylla var. yunnansensis showed plenty genetic diversity, there existed obvious differences in morphological characters of different population. Principal components analysis showed that the number of calyces, petal, carpels, stamens is main factor,which causes the morphological variations in different population. Cluster analysis shows that 26 populations are incorporates in two types as 45.08 Euclidean distance. Leaf area index is distinct different in this two types.</p>
Subject(s)
China , Genetic Variation , Liliaceae , Classification , GeneticsABSTRACT
OBJECTIVE:To evaluate the effect of Shengmai injection and dexamethasone on the activity of SOD and the content of MDA during cardiopulmonary resuscitation.METHODS:538 patients with cardiac arrest were randomly divided into experiment group and control group.Both groups were carried out cardiopulmonary resuscitation according to INT rule.Experiment group were additionally treated with 1 mg?kg-1 dexamethasone,1 mg?kg-1 Shengmai injection and 5% glucose injection (250 mL) via i.v gtt.39 cases who were successfully rescued were respectively detected in terms of the activity of SOD and content of MDA in venous blood at 10 min,30 min,60 min and 120 min.RESULTS:The success ratio of cardiopulmonary resuscitation in experiment group and control group were 11.33% and 6.50%,respectively.The activity of SOD in experiment group were higher than in control group while The content of MDA in experiment group were lower than in control group(P
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AIM The purpose is to study the anti-arrhythmic effects of extracts from cultured Cordyceps sinensis. METHODS Aconitine and barium chloride were used to induce experimental arrhythmia models in rats. RESULTS The results showed that PE was more potent than other ingredients. Pretreatment with PE by oral administration significantly antagonized arrhythmia induced by aconitine. PE significantly prolonged the onset of arrhythmia, decreased the duration and diminished the degree of severity. And in barium chloride-induced arrhythmia model, PE had some anti-arrhythmia effect，which could diminish the degree of severity effectively to some extent. CONCLUSION PE is an active component to antagonize arrhythmia induced by aconitine and barium chloride.
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Objective To optimize static pressurized liquid extraction(PLE) method for the extraction of aristolochic acids Ⅰ and Ⅱ(AAⅠ and AAⅡ) from Fructus Aristolochiae and study the influences of related factors.Methods The univariate design was introduced.The operational parameters,such as the type of solvent,particle size of the sample powder,extraction temperature,pressure,static time,flush volume,the number of cycles,and the amount of sample were optimized.Results The optimized result employed methanol as extraction solvent,particle size of 100—120 meshes,extraction temperature of 120 ℃,extraction pressure of 10.3 MPa,static time of 10 min,flush volume of 40%,1 cycle,and sample amount of 1.00 g.The method was applied for four species of traditional Chinese medicinal materials including Fructus Aristolochiae,Caulis Aristolochiae Manshuriensis,Radix Aristolochiae,and Radix Arsitolochiae Fangchi.Conclusion This method can be used to completely extract AAⅠ and AAⅡ from Fructus Aristolochiae in once extraction.The comparison shows that this static PLE method is better than ultrasonication and Soxhlet methods with higher extraction efficiency and less time-consuming.It is also better than the dynamic one in the extraction of AAs from Radix Aristolochiae.
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Objective To study the diagnosis of double image of intracranial hematoma by CT and MRI.Methods There were 27 cases with twice blood of the same part of intracranium,of them,23 cases presented double image of intracranial hematoma,18 cases were intracerebral hematoma,3 cases were subdural homatoma and 2 cases were extradural homatoma.Results The double image of intracerebral hematoma was caused by twice blood in different time at the same region of intracraniun that became high and slightly high density.MRI exhibited signal intensity of acute and subacute or chronicity premature hematoma.Conclusion The double image of intracerebral hematoma should differentiate with cerebroma bleeding and cerebroma calcification
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AIM: To establish a HPLC method for determination of curcumol and germacrone in Zedoary Turmeric Oil and Glucose Injections. METHODS: RP-HPLC was applied for quantitative analysis of curcumol and germacrone. Hypersil ODS2 column (250 mm? 4.6 mm, 5 ?m) and gradient elution was used. Mobile phase A was acetonitrile and mobile phase B was water. Phase A time-percentage composition was as follows:0-3 min,45%;3-30 min,45%→65%;30-38 min, 65%; 38-45 min, 65%→90%;45-55 min,90%→100%;55-65 min,100%. The flow rate was at 1.0 mL?min -1 . Diode array detector was set at 214 nm and column temperature was at 25 ?C. RESULTS: The calibration curves of curcumol and germacrone were linear in the range of 0.26 - 6.5 ?g(r= 0.999 9 ) and 0.112 5 - 2.812 5 ?g(r=1), The average recoveries of them were 102.1% and 98.8% (n=5), respectively. CONCLUSION: Curcumol and germacrone can be determined by the method, and this will improve the quality control of Zedoary Turmeric Oil and Glucose Injections.
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Objective To study the diagnostic significance of MR fat-suppression (FSEIR)in avascular necrosis of femoral head(ANFH).Methods MRI of 21 patients (12 men and 9 woman) with ANFH were reviewed . There were long-term steroid administration in 9 cases , long term alcoholic in 5 cases,fracture/dislocation of the hip in 4 cases and infection in 3 cases.General electric signa profile SYS#0.2 TMR unit and body coil were used for all examinations.Images in the axial plane and coronal plane,T_1-weighted images,T_2-weighted images and FSEIR were carried out.Results Totally 36 lesions in 21 patients,included 8 lesions of A type(fatlike),6 lesions of B type(bloodlike),10 lesions of C type(fluidike) and 12 lesions of D type(fibrouslike).On T_2WI,a rim of high signal intensity inside the low-signal margin (double line sign) was seen in 16 lesions.On FSEIR , A and D type exhibited low signal intensity , B and C type exhibited high signal intensity.Conclusion MR FSEIR is of important significance in showing the pathologic changes and guiding the clinical diagnosis and treatment of ANFH.