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1.
Article in Chinese | WPRIM | ID: wpr-879089

ABSTRACT

Traditional Chinese medicine(TCM) injections boast a definite efficacy and have been widely used in clinic. However, the problems in medication safety have been attracted increasing attention. Pharmacokinetics is of significance to guiding TCM injection administration regimen design and improving safety and effectiveness in clinical use. In recent years, with the improvement of ideas, technology and methods of TCM studies, the pharmacokinetic studies of TCM injections have been broadly performed, with a notable progress. This paper reviewed the advance in pharmacokinetics studies of TCM injections in recent ten years, which mainly focused on pre-clinical concentration-time course, distribution, metabolism and excretion in vivo based on analysis techniques, pharmacokinetic interactions of constitutes, impact of pathological state, pharmacokinetic interactions between TCM injection and chemical drugs, and clinical pharmacokinetics studies of TCM injections, in the expectation of providing reference for studies on quality control, product development and rational clinical use of TCM injections.


Subject(s)
Drugs, Chinese Herbal , Injections , Medicine, Chinese Traditional , Quality Control
2.
Article in Chinese | WPRIM | ID: wpr-828070

ABSTRACT

According to the structure and effect differences of Panax notoginseng saponin components(PNSC), subcomponent division and network pharmacological characterization were conducted to provide a research basis for the medicinal properties of P.notoginseng saponin subcomponents and the technical design of unit preparations. PNSC were screened by the TCMSP database and subcomponents were classified according to systematic clustering. Then the subcomponents obtained were subjected to target prediction and attribution analysis by PharmMapper server, GeneCards, DisGeNET and HOME-NCBI-GENE database. A subcomponent target interaction network was constructed by using the STRING database. KEGG and GO enrichment analysis were performed on each subcomponent target using the DAVID database. The subcomponents-targets-pathways visualization network was constructed by Cytoscape. The subcomponent targets and pathways involved were compared to analyze the differences in anti-myocardial ischemic drug mechanisms and the rationality of subcomponent division. Eighteen compounds of PNSC were screened out, and classified into three subcomponents A, B, and C according to their properties, involving 67 targets and 17 common anti-myocardial ischemic pathways directly or indirectly related to myocardial ischemia. Subcomponent A had the highest number of targets and the target interaction was dense, possibly indicating its key role in the mechanism of pharmacodynamics. Subcomponents A, B, and C had similar basic structures, and KEGG and GO analysis showed that they all can enhance the heart function and protection of cardiomyocytes by inhibiting apoptosis, promoting angiogenesis and regulating inflammatory response to play the effect on myocardial ischemia. This study fully reflected the differences in the efficacy of various subcomponents in preventing and treating myocardial ischemia due to the different physical properties of P. notoginseng saponin subcomponents. To some extent, the differences in the efficacy of each subcomponent in the prevention and treatment of myocardial ischemia could verify the rationality of the division of P. notoginseng saponin subcomponents according to the structural properties, realizing the characterization of P. notoginseng saponin subcomponents based on structure and effect differences.


Subject(s)
Apoptosis , Coronary Artery Disease , Humans , Myocardial Ischemia , Panax notoginseng , Saponins
3.
Acta Pharmaceutica Sinica ; (12): 832-842, 2020.
Article in Chinese | WPRIM | ID: wpr-821699

ABSTRACT

Heart failure is the end stage of many cardiovascular diseases. It seriously affects the safety and quality of life of nearly 40 million people worldwide. At present, the clinical and pathophysiological characteristics of some types of heart failure are unknown, and there is no effective diagnosis and treatment. In recent years, genomics, transcriptomics, epigenomics, proteomics, metabolomics and other omics technologies have been widely used in disease research, providing new opportunities for the prevention, diagnosis and treatment of diseases. These strategies have also brought hope for the reduction in heart failure mortality. Based on the current status of clinical treatment of heart failure, this article reviews the roles and potential applications of these various omics technologies and their opportunities in the study of the pathogenesis of heart failure, clinical diagnosis and treatment, and related drug pharmacodynamics and mechanism of action.

4.
Article in Chinese | WPRIM | ID: wpr-745135

ABSTRACT

Objective To investigate the application value of the tissue diffusion quantitative analysis technique of real-time elastic( RTE) imaging in evaluation of liver damage caused by brain death . Methods Fifty cases of brain dead donor liver were examined by ultrasound elastography ,at the same time , 11 parameters were obtained by the tissue dispersion quantitative analysis software ,included MEAN ( mean relative strain value within the ROI) ,SD( standard deviation of the relative strain value within the ROI) ,%AREA (area of low strain within the ROI) ,COMP(complexity of low strain area within the ROI) ,KURT (kurtosis) ,SKEW(skewness) ,CONT (contrast) ,ENT(entropy) ,IDM(inverse difference moment) ,ASM (angular second moment) ,CORR(correlation) ,and the pathologic specimens in the process of operating were obtained . According to pathological findings ,50 patients were divided into damaged group and non-damaged group ,and the results were compared and analyzed . The correlation analysis of electronic speculum results and RTE were carried out . According to the ROC curve ,the RTE parameters'cut-off value and AUC were obtained .Results Among 11 parameters of tissue diffusion analysis ,MEAN and IDM in damaged group were higher than those in non-damaged group( all P < 0 .05) ;and SKEW and ENT were lower in damaged group than those in non-damaged group ( all P <0 .05) ;there was no significant difference in the other parameters between the two groups(all P >0 .05) . The MEAN ,SKEW ,COMP ,ENT and IDM had correlativity with electronic speculum( r = -0 .633 , P =0 .000 ;r =0 .388 , P =0 .005 ;r =0 .315 , P =0 .026 ;r = 0 .324 , P = 0 .022; r = -0 .314 , P = 0 .026 ,respectively ) . The diagnostic efficiency and sensitivity of MEAN were the highest , the critical value of MEAN was 125 .84 , AUC was 0 .907 . Conclusions The tissue dispersion quantitative analysis technique is a noninvasive method to preliminary evaluation of liver damage caused by brain death . M EAN had the highest effectiveness in eleven parameters .

5.
Article in Chinese | WPRIM | ID: wpr-743390

ABSTRACT

Objective To evaluate and compare the consistency and repeatability of three-dimensional ultrasound (3D-US) virtual organ computer-aided analysis (VOCAL) technique and two-dimensional ultrasound (2D-US) in the measurement of thyroid volume.Methods The thyroid volume of 50 healthy female adults aged 18 to 68 years were measured by 2D-US and 3D-US.The 2D-US was used to measure the three diameter lines (L,H,W) of the largest thyroid section,and the thyroid volume was calculated by the classical ellipsoid formula V=0.523×L×H×W.The 3D-US VOCAL technique was used to acquire the thyroid three-dimensional data,and VOCAL software was used to measure the thyroid volume.The two methods of measurement were also compared and analyzed.Results The coefficient of variation in the intra-assay was 0.738% and 1.59% respectively for the 3D-US VOCAL technology and traditional 2D-US measurement of thyroid volume,and the 95% limit of agreement in the intra-assay was (-0.26 cm3,0.22 cm3) and (-0.32 cm3,0.46 cm3).In addition,the correlation coefficient in the inter-assay were 0.970xx and 0.942xx,and the 95% limit of agreement were (-0.36 cm3,0.37 cm3) and (-0.75 cm3,0.64 cm3).To compare the two methods of measuring thyroid volume,the 3D-US VOCAL had a lower variation coefficient in the intra-assay,a higher correlation coefficient in the inter-assay and a narrower 95% limit of agreement,which showed that the repeatability of the 3D-US VOCAL technique measuring was better than the traditional 2D-US in measuring thyroid volume.Conclusions The 3D-US VOCAL technique shows a higher repeatability in measuring thyroid than traditional 2D-US.As a safe,simple and feasible precise measurement method,it provides a reliable and effective new method for clinical measurement of irregular organ volume.

6.
Article in Chinese | WPRIM | ID: wpr-743284

ABSTRACT

Objective To explore the clinical features, cytogenetic and molecular genetics characteristics of trisomy 12 p in neonates. Method The clinical data were reviewed in a neonate with trisomy 12 p confirmed by routine G-banding chromosome karyotype analysis, high throughput sequencing chromosome copy number variation analysis (CNV) and lymphocyte interphase fluorescence in situ hybridization (FISH) . Results The chromosome karyotype in peripheral blood of the neonate was 47, XX, +mar, and the karyotypes of her parents were normal. CNV detected a regional duplication of 12 p13.33-p11.1 (160001-34860000) with a fragment size of 34.7 Mb. Peripheral blood lymphocyte interphase FISH showed that there were 3 signals in the short arm of chromosome 12 in all interphase nuclei of the neonate, and no chimera existed. It was finally confirmed to be trisomy 12 p. Conclusion The combination of clinical features, peripheral blood karyotype analysis, CNV and FISH techniques can effectively confirm the diaganosis of trisomy 12 p.

7.
Chinese Journal of Biotechnology ; (12): 852-861, 2018.
Article in Chinese | WPRIM | ID: wpr-687731

ABSTRACT

Haplotype is the combination of a series of genetic mutations that coexist on a single chromosome, each of which has its own unique haplotypes. As a common data analysis method, the analysis of haplotype is effective for the localization of heterozygosis SNPs on single chromosome, the excavation of disease genes and the search of maladies treatments. It mainly includes indirect computational inferential method and direct experimental method. In this review we introduced various haplotype analysis methods and applications, especially two important ones: single-molecule dilution and contiguity-preserving transposition sequencing common technology. Meanwhile, further research prospects on haplotype sequencing were proposed.

8.
Article in Chinese | WPRIM | ID: wpr-618465

ABSTRACT

Objective To investigate the application value of the ultrasonic elastic tissue dispersion quantitative analysis technique in different stages of subacute thyroiditis (SAT).Methods One hundred and forty-four SAT lesions detected from 81 patients were enrolled in the patient group.They were further divided into three subgroups,including acute group (group Ⅰ),medium group (group Ⅱ) and recovery group (group Ⅲ).Another 59 healthy volunteers were collected as control group.All the participants accepted conventional ultrasound and elastographic examinations.Eleven parameters were obtained by the tissue dispersion quantitative analysis software.These parameters were compared between groups and among subgroups by ANOVA.The correlation between all the parameters and the course of SAT were analyzed by Spearman and Multiple linear regression methods.Results Between groups and among subgroups,the complexity (COMP) and correlation (CORR) were not statistically different(all P >0.05).Differences of kurtosis (KURT) and angular secon moment (ASM) among the three subgroups were not significant (all P >0.05).Differences between groups and among subgroups were significantly different among the value of all the other seven indexes (all P <0.01).Moreover,they were all correlated with the clinical staging,with the highest coefficient in area ration of low-strain region (% AREA)(r =-0.881).Regression model was constructed and only % AREA was selected into the regression equation.ROC curves were constructed to estimate the clinic value of % AREA in staging patients of SAT,the areas under ROC curves were0.986(group Ⅰ vs group Ⅱ-Ⅲ) and 0.988 (group Ⅰ-Ⅱ vs group Ⅲ[) for %AREA,respectively.Conclusions The tissue dispersion quantitative analysis technique is helpful in estimating the stiffness of thyroid in patients with SAT.

9.
Article in Chinese | WPRIM | ID: wpr-483592

ABSTRACT

Described in this paper are the new development trends of LibQual+in foreign libraries, such as its modified analysis techniques, its perfected analysis methods, integrated LibQual+and other evaluation tools, further application of LibQual+evaluation analysis results.The successful application of LibQual+data analysis in University of California and University of York is a good inspiration to the domestic libraries.

10.
Article in Chinese | WPRIM | ID: wpr-854366

ABSTRACT

Powdered Chinese materia medica (CMM) is widely applied in the field of medicine. Because their qualities directly influence the safety and efficiency of clinical medication, it is very important to conduct the identification of powdered CMM in order to supply an excellent quality for clinical medication. In this paper, a review on the current identification methods was carried on through reading many relative papers. Subsequently we further searched for their evolvement trend, then the new viewpoints that the key of the development of identification technologies lies in using proper technologies and methods to dig CMM characteristics and to expand its application were proposed based on concluding these methods. The embodiment of description comes true as the development of Bionic Technology. Therefore, in this work, we proposed a new thread that on the basis of "odor and taste", with the help of electronic nose and electronic tongue technologies, a successful identification of powdered CMM has been accomplished. Additionally, the authors express their views about the identification methods by adopting Fritillaria Unibracteata Bulbus and Fritillariae Thunbergii Bulbus powders as experimental materials.

11.
Rev. bras. educ. espec ; 17(2): 335-354, maio-ago. 2011. graf, tab
Article in Portuguese | LILACS-Express | LILACS | ID: lil-602209

ABSTRACT

O objetivo do trabalho foi descrever o perfi l da publicação científi ca brasileira sobre a temática da escolarização em hospitais, iniciativa justifi cada a partir do reconhecimento da importância da produção científi ca na legitimação e consolidação de uma nova área do saber. Foram analisados 47 artigos publicadosem periódicos científi cos entre os anos de 1997 e 2008. Tratou-se, basicamente, de um estudo de avaliação do Estado do Conhecimento (ou Estado da Arte) de uma área de interesse crescente dentro da Educação Especial: a escolarização de crianças hospitalizadas e/ou doentes crônicas, designada pelo MEC segundo o termo Classe Hospitalar. Do ponto de vista do corpus empírico, tratou-se de uma pesquisa documental, alicerçada metodologicamente na Análise de Conteúdo. Os artigos da amostra foram quantifi cados e qualifi cados segundo o tipo de investimento empírico predominante, quais fossem: ensaio, relato de experiência, relatos de pesquisa original (pesquisa com desenho de investigação) ou revisão de literatura. Buscou-se, também, identifi car se o periódico ao qual o artigo pertencia encontrava-se indexado em bases de dados: SciELO, Edubase, Bireme e catálogo do INEP. Descreveu-se, ainda, a distribuição dos artigos por área de conhecimento e por instituições de onde provinham. Os principais resultados obtidos revelaram que dos 47 artigos analisados 22 foram classifi cados como sendo oriundos de pesquisa original, apenas dois periódicos encontravam-se indexados em todas as bases de dados consideradas em relevância e as publicações foram originadas, em sua grande parte, da atividade de pesquisadores estabelecidos em instituições federais de ensino superior.


The aim of this paper was to describe the profi le of Brazilian scientifi c publications on the topic of education in hospitals, an initiative justifi ed since the recognition of the importance of scientifi c output in legitimizing and consolidating this new area of knowledge. We analyzed 47 articles published in scientifi c journals between the years 1997 to 2008. Basically, the study assessed the state of knowledge (or state of the art) of an area of growing interest and importance within the fi eld of Special Education: the education of hospitalizedchildren and/or chronic patients, designated by the Brazilian Ministry of Education under the term Hospital Schooling. From the standpoint of the empirical corpus, this was a documentary study, methodologically based on a technique called Content Analysis. The articles of the sample were classifi ed and quantifi ed according to the predominant type of empirical investment, i.e.: essay, case study, reports of original research (survey with design of research) and literature review. We also sought to identify the indexation databases to which the journals in question pertained, such as: SciELO, Edubase, Bireme and INEP catalog. We also described the distribution of thearticles by area of expertise and institutions they came from. The main results showed that 22 of the 47 articles analyzed were classifi ed as having been derived from original research; only two journals were indexed in all the relevant databases, and most the publications were produced by researchers working in federal institutions of higher education.

12.
Article in English | IMSEAR | ID: sea-135799

ABSTRACT

Background & objectives: Heavy alcohol drinking and propensity to risk taking behaviour may both be associated with the occurrence of high risk behaviour. The present study was carried out to examine the association between high risk behaviours and alcohol abuse among patients admitted to an inpatient facility for treatment of alcohol dependence syndrome. Methods: Using event analysis technique, the prevalence and type of high risk behaviour as a consequence of a heavy drinking episode was identified among heavy drinkers. Four types of high risk behaviour namely road traffic accidents, violence, self-injurious and risky sexual behaviour were studied. Patients with and without high risk behaviour were compared on measures of severity of drinking, sensation seeking and impulsivity using addiction severity index, sensation seeking scale and Baratt’s impulsivity scale respectively. Results: In 300 subjects with alcohol dependence syndrome, the most common high risk behaviour was road traffic accident following alcohol use. In 193 (64.3%) subjects heavy drinking episode was associated with high risk behaviours. Compared to those without high risk behaviours, the subjects with high risk behaviours had higher scores on sensation seeking scale and addiction severity index. Interpretation & conclusions: Our findings indicated that there was a high prevalence of high risk behaviour following an episode of heavy drinking in male patients with alcohol dependence syndrome. Both, severity of drinking and personality factors were associated with the occurrence of high risk behaviour as a consequence of heavy drinking.


Subject(s)
Accidents, Traffic/psychology , Adult , Alcohol Drinking/adverse effects , Alcoholism/complications , Alcoholism/psychology , Humans , Impulsive Behavior/etiology , India , Logistic Models , Male , Personality , Surveys and Questionnaires , Risk-Taking
13.
Article in Chinese | WPRIM | ID: wpr-406067

ABSTRACT

Objective: To investigate mandibular movement characteristics in patients with skeletal class Ⅲ malocclusion during chewing different foods. Methods: 14 skeletal class Ⅲ adult patients with mandibular asymmetry, 10 patients without mandibular asymmetry and 10 normal control cases were chosen to find out the different condylar and incisor movement area ratio based on the aid of ARCUSdigma mandibular moving track analysis system. Results: First,during chewing soft food, the condylar tracing length of skeletal class Ⅲ adult patients with mandibular asymmetry were significant different in sagittal and horizontal plane compared with the other two groups(P<0.05), while the incisor point trajectory difference was not statistically significant. Second, the condylar and incisor movement characteristic showed much more different among three samples during chewing brittle food(P<0.05). Third, in sagittal plane, the deflective condylar movement area ratio was significantly higher than that of the other two groups during chewing hand food(P<0.01). Conclusion: The mandibular movement in skeletal class Ⅲ adult patients are affected obviously by the shape and texture of food. Asymmetric lower mandible patients have a greater preponderance of this phenomenon.

14.
Acta amaz ; 37(3): 425-430, 2007. tab
Article in Portuguese | LILACS | ID: lil-474442

ABSTRACT

Considerando a ampla variabilidade genética de cubiu (Solanum sessiliflorum Dunal), quantificaram-se os macro e micro-nutrientes, objetivando a ampliação da tabela de composição química de alimentos típicos da região amazônica. Os frutos provenientes da Estação Experimental de Hortaliças Alejo von der Pahlen (EEH) do Instituto Nacional de Pesquisas da Amazônia (INPA), localizados no km 14 da Rodovia AM 010 em Manaus, AM, foram processados no Laboratório de Alimentos e Nutrição do INPA. Avaliaram-se oito etnovariedades de cubiu identificados como: 2 I, 3 I, 6, 7, 12, 14, 17, 29 I e III em estádio de maturação comercial. Os teores de elementos minerais foram quantificados pela técnica de Ativação por Nêutrons Instrumental e a fibra alimentar pelo método enzímico-gravimétrico. Os resultados demonstram ser o cubiu um fruto com baixo conteúdo energético (média de 33 kcal), com conteúdo de fibra alimentar total na ordem de 1,6 por cento. Em relação aos macros elementos minerais, a etnovariedade 6, apresentou a maior concentração em potássio (513,5±3,1mg), cálcio (18,9±0,6mg) e a etnovariedade 2 I em Fe (564,4±58,1µg) e Cr (99,3±8,3µg). A menor concentração foi constatada na etnovariedade 12 para os elementos K (229,0±4,5mg), Na (53,7±5,5µg) e Zn (89,3±4,7µg). Apesar das variações em relação as diferentes etno variedades e conseqüentemente concentrações em elementos minerais, o cubiu, pode estar contribuindo para atingir as recomendações desses nutrientes.


Considering the wide genetic variability of cubiu (Solanum sessiliflorum Dunal), its chemical composition was quantified in order to contribute to the chemical composition table of typical Amazonian foods. The cubiu fruit was collected at Alejo von der Pahlen (EEH) experimental station from National Research Institute of Amazonia (INPA). Eight ethno varieties of cubiu identified as 2 I, 3 I, 6, 7, 12, 14, 17, 29 I and III were analyzed. All samples used were ripe. The mineral content was determined by Neutron Activation Analysis technique and alimentary fiber by the enzymatic-gravimetric method. The results showed that cubiu is a hypo caloric food source (mean of 33 kcal and total fiber of about 1.6 percent). Regarding macronutrients, ethnovariety 6 showed high potassium (513.5 ± 3.1 mg) and calcium (18.8 ± 0.6 mg) concentration. Ethnovariety 21, had high Fe (564 ± 58 µg) and Cr (99 ± 8 µg) concentrations. Low concentrations of K (229.0 ± 4.5 mg), Na (53.7 ± 5.5 µg) and Zn (89.3 ± 4.7 µg) were found for ethnovariety 12. Although the cubiu fruit presents great variation of its mineral contents due to different ethnovarieties, it could still contribute as a diet supplement to reach the minimum nutrient requirements for the Amazonian population.


Subject(s)
Activation Analysis , Solanum , Minerals , Neutron Activation Analysis
15.
Article in Chinese | WPRIM | ID: wpr-623304

ABSTRACT

To adapt the developing requirement of clinical laboratory diagnostics,the Analysis Technique of Molecular Biology was set up for Grade 2003 in laboratory medicine in our college.The students showed great interests and enthusiasm in this subject,especially in laboratory course.The studentsof Grade 2003 made a better score than those of Grade 2002 in the final Test of Basic Experimental Skills,which included the scores of basic operation,experiment theory and technical skill.These results showed that setting up the Analysis Technique of Molecular Biology could improve student's ability in experimental skills.

16.
Article in Korean | WPRIM | ID: wpr-59794

ABSTRACT

BACKGROUND: The purpose of this study was to evaluate the cost-effectiveness of screening tests (AFP and US) for early detection of primary hepatocellular carcinoma (HCC) and its optimal screening interval in Korean hepatitis B virus carriers. METHODS: Data relating to tumor incidence, efficacy of screening tests, tumour growth times and various cost for detecting HCC were obtained from reviews of Korean literature. Decision analysis technique was used to calculate the efficacy of these screening tests and screening interval. RESULTS: When the doubling time of HCC was 6 months, the most cost-effective screening interval of each AFP and US was 6 months, respectively. The optimal screening intervals of AFP and US were 3 and 5 months for each, respectively, and 7 months for both when a detection rate of 80% was expected. These results were significantly altered when the different tumour growth times reported in other literatures were applied. CONCLUSION: If the doubling time of HCC was 6 months, the optimal screening interval was 7 months on using both tests. Because the tumour doubling time alters the optimal screening interval, further evaluation on the doubling time of Korean hepatoma is needed.


Subject(s)
Carcinoma, Hepatocellular , Decision Support Techniques , Hepatitis B virus , Hepatitis B , Hepatitis , Incidence , Mass Screening
17.
Article in Chinese | WPRIM | ID: wpr-670803

ABSTRACT

Objective:To investigate the relationship between the expression of P16 protein and the clinico-pathology of squamous cell carcinoma(SCC) of buccal mucosa and its precursor lesions. Methods:The immunohistochemical stain against p16 was performed in 30 cases of SCC of buccal mucosa, 32 cases of buccal leukoplakia and buccal lichen planus and 10 cases of normal buccal mucosa. All data were analyzed quantitatively by imag analysis technique. Then, the results were compared with clinico-pathological parameters.Results:The positive expression of P16 protein was found in all normal buccal and hyperplasia mucosa (100.0%), in 9 out of 10 cases of atypical hyperplasia (90.0%), in 12 out of 30 cases of SCC of buccal mucosa (40.0%). The positive expression rate of P16 protein in SCC of buccal mucosa was significantly lower than that in atypical hyperplasia (P

18.
Article in Chinese | WPRIM | ID: wpr-577871

ABSTRACT

AIM:To study the feasibility of online monitoring and controlling of the key process of column chromatographic separation in the production of Salvianolate by combining near-infrared(NIR) spectrum and HPLC fingerprinting. METHODS: Partial Least Square(PLS) regression was used to model the correlation of NIR spectra with the concentrations of salvianolic acid B,and the influences of light path,wavelength selection,and preprocessing method on the PLS model were investigated systematically. RESULTS: A 2 mm light path was better than 1 mm one,and with 2 mm light path,the optimal wave-number was in the range of 6 102.1-5 446.3 cm~(-1) and the optimal preprocessing method was the vector normalization.The root mean-square error of PLS model on test samples was 0.234 mg/mL,and R~2 was 0.995 2. CONCLUSION: This method is proved to be fast,convenient,and precise.It can be used to online monitoring and quality control of the manufacturing of Salvianolate.

19.
Article in Chinese | WPRIM | ID: wpr-577634

ABSTRACT

AIM: To apply Differential Scanning Calorimetry(DSC) identifying powder aqueous extracts and alcohol extracts of Radix et Rhizoma Salviae miltiorrhizae,Radix et Rhizoma Glycyrrhizae and Radix Paeonia rubra. METHODS: ?-Al_2O_3 was taken as the reference substance and under static state air condition,with the determination of the measuring range、the heating rate and temperature range of each herb or its extracts,the herbs were(identified) by comparing the characteristics and the peak profiles of their chromatography. RESULTS: There were the tiny differences in DSC chromatography among powder,aqueous extracts and alcohol extracts,DSC chromatography of the same herbs from two different areas were very close to each other. CONCLUSION: With great advantages of DSC method,such as very small amount of drugs,solvent-free.It is easy,quick and convenient to apply chromatography analyses.

20.
Article in Chinese | WPRIM | ID: wpr-521149

ABSTRACT

Objective Investigate the postmortem stability of the six immunohistochemical markers of fibronectin(Fn),fibrinogen(Fg),C5 complement(C5), myoglobin(Mb), actin(HHF35)and desmin(Dm)for the postmortem diagnosis of myocardial infarction.Method The areas of depletion ofMb、HHF35 and Dm,and the positive reaction areas of Fn、Fg and C5 in the ischemic myocardium were studied with immunohistochemistry,image analysis technique and statistical system.The postmortem stability of the six immunohistochemical markers was compared.Results The specimens of normal myocardium kept at 4℃ for 1 to 2 days showed homogenous brown reactions for Dm, HHF35 and Mb; depletion of Dm, HHF35 and Mb became evident when these specimens were kept at 4℃ for 3 days postmortem, and the depletion area increased with the lapse of postmortem interval; the depletion area of Dm, HHF35 and Mb in ischemic myocardial tissues also increased with the lapse of postmortem interval;the positive reaction areas of Fg, C5 and Fn in ischemic myocardial tissues decreased with the lapse of postmortem interval.Fg became negative when the ischemic myocardium were kept at 4℃ for 2 weeks postmortem,C5 became negative when kept at 4℃ for 3 weeks postmortem,but Fn remained positive when kept at 4℃ for 4 weeks postmortem.No positive reactions for Fg,C5 and Fn could be found in normal myocardium when kept at 4℃ for different time intervals. The image analysis result showed that the positive reaction areas decreased with the lapse of postmortem interval. Conclusion The Dm and HHF35, Mb showed least postmortem stability, easily influenced by autolysis, only suitable for detection in fresh corpses(1to 2dayspostmortem) ;Fgislittlebitbetter,suitableforcorpsesat4℃ 1weekpostmortem ;C5isbet ter,suitableforcorpsesat 4℃ 2weekspostmortem ;Fnisthebestmarker ,suitableforcorpsesat 4℃ 4 weekspostmortem .

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