Application value of Qisexingtai hand diagnostic method in diagnosis of coronary artery disease.

OBJECTIVE: To evaluate the diagnostic efficacy of Qisexingtai hand diagnostic method in the diagnosis of coronary artery disease (CAD). METHODS: This was an investigator-initiated, prospective, multi-center, cross-sectional study. All the participants from three hospitals in China had been diagnosed by both Qisexingtai hand diagnostic method and coronary angiography. We compared the two diagnostic methods to calculate the sensitivity, the specificity, the omission diagnostic rate, the mistaken diagnostic rate and accuracy in order to evaluate the diagnostic efficacy of Qisexingtai hand diagnostic method for CAD. RESULTS: A total of 326 subjects were enrolled, diagnosed by both Qisexingtai hand diagnostic method and coronary angiography. As a result, there were 166 positive cases according to Qisexingtai hand diagnostic method, and 131 positive cases according to coronary angiography. Compared with the results of coronary angiography, the sensitivity of Qisexingtai hand dia-gnostic method was 80.2%, the specificity was 68.7%, the omission diagnostic rate was 19.8%, the mistaken diagnostic rate was 31.3%, and the accuracy was 73.3%. Area under the receiver operating characteristic curve was estimated as 0.735 for all, and 0.718, 0.735, 0.783 for the three sub-centers. CONCLUSION: Qisexingtai hand diagnostic method with high accuracy and sensitivity has certain application value in the diagnosis of CAD.

The clinical application of metagenomic next-generation sequencing in neonatal sepsis / 中国新生儿科杂志

Objective:To study the clinical application of metagenomic next-generation sequencing (mNGS) on pathogen diagnosis and clinical management in neonatal sepsis.Methods:From January 2019 to February 2021, neonates suspected of sepsis receiving both mNGS and blood culture in our hospital were retrospectively reviewed. The effects of mNGS on pathogen detection, antibiotic choice and clinical management were analyzed.Results:A total of 35 neonates were included. Sepsis was confirmed in 24 neonates. 12 neonates had positive microbiology results (both mNGS and blood culture were positive in 3 cases, only mNGS positive in 8 cases and only blood culture positive in 1 case). mNGS showed higher positive rate than blood culture in patients with neonatal sepsis (45.8% vs. 16.7%, P=0.049). The concordance of mNGS and blood culture was 74.3%. 21 cases (60.0%) had antibiotics before testing and the positive rate showed no significant difference between mNGS and blood culture [19.0% (4/21) vs. 4.8% (1/21), P=0.343] in these patients. 14 cases didn't receive antibiotics before testing and the positive rate also showed no significant difference between mNGS and blood culture [28.6%(4/14) vs.21.4% (3/14), P=1.000]. 8.6% patients changed clinical treatment based on the mNGS results. Conclusions:mNGS increases pathogen detection in neonatal sepsis and is well consistent with blood culture. mNGS is useful in clinical practice.

ACE2 expression in rat brain: implications for COVID-19 associated neurological manifestations

We examined cell type-specific expression and distribution of rat brain angiotensin converting enzyme 2 (ACE2), the receptor for SARS-CoV-2, in rodent brain. ACE2 is ubiquitously present in brain vasculature, with the highest density of ACE2 expressing capillaries found in the olfactory bulb, the hypothalamic paraventricular, supraoptic and mammillary nuclei, the midbrain substantia nigra and ventral tegmental area, and the hindbrain pontine nucleus, pre-Botzinger complex, and nucleus of tractus solitarius. ACE2 was expressed in astrocytes and astrocytic foot processes, pericytes and endothelial cells, key components of the blood-brain-barrier. We found discrete neuronal groups immunopositive for ACE2 in brainstem respiratory rhythm generating centers including the pontine nucleus, the parafascicular/retrotrapezoid nucleus, the parabrachial nucleus, the Botzinger and pre-Botzinger complex and the nucleus of tractus solitarius; in arousal-related pontine reticular nucleus and in gigantocellular reticular nuclei; in brainstem aminergic nuclei, including substantia nigra, ventral tegmental area, dorsal raphe, and locus coeruleus; in the epithalamic habenula, hypothalamic paraventricular and suprammamillary nuclei; and in the hippocampus. Identification of ACE2-expressing neurons in rat brain within well-established functional circuits facilitates prediction of possible neurological manifestations of brain ACE2 dysregulation during and after COVID-19 infection. HighlightsO_LIACE2 is present in astrocytes, pericytes, and endothelia of the blood brain barrier. C_LIO_LINeuronal ACE2 expression is shown in discrete nuclei through the brain. C_LIO_LIBrainstem breathing, arousal-related, hypothalamic and limbic nuclei express ACE2. C_LIO_LIACE2 is expressed in circuits potentially involved in COVID-19 pathophysiology. C_LI

Application of simulation teaching based on Miller pyramid theory in training new obstetric nurses / 中华医学教育探索杂志

Objective:The application effect of simulation teaching based on Miller pyramid theory in the training of new obstetric nurses.Methods:Thirty-six new nurses in obstetrics rotation in 2019 were selected as the observation group, trained by the simulation teaching method based on Miller pyramid theory, and 32 new nurses in 2018 were selected as the control group, following the traditional training method. After the study, t test was used to compare the theoretical examination scores, operational assessment results, clinical comprehensive quality, and training satisfaction of the two groups. Results:The scores of theoretical examinations, operational assessments, clinical comprehensive quality in the observation group were significantly superior to those in the control group, ( P<0.05, P<0.001), and the training satisfaction of the experimental group was over 88%. Conclusion:Simulation teaching based on Miller Pyramid Theory is beneficial for new obstetric nurses to understand and apply professional theoretical knowledge, improve their obstetric operation skills and ability of solving practical clinical problems, and improve their training satisfaction.

Role of pyroptosis in brain injury in a rat model of hepatic ischemia-reperfusion / 中华麻醉学杂志

Objective@#To evaluate the role of pyroptosis in brain injury in a rat model of hepatic ischemia-reperfusion (I/R).@*Methods@#Thirty clean-grade healthy male Sprague-Dawley rats of both sexes, aged 6-8 weeks, weighing 180-200 g, were divided into 3 groups (n=10 each) using a random number table method: sham operation group (group S, n=10), hepatic I/R plus dimethyl sulfoxide (DMSO) group (group I/R+ DMSO, n=10), and hepatic I/R plus caspase-1 inhibitor Ac-YVAD-cmk group (group I/R+ YVAD, n=10). Hepatic I/R was produced by occluding the left hepatic artery and portal vein for 90 min followed by 6-h reperfusion in anesthetized rats.At 2 h before reperfusion, Ac-YVAD-cmk 5 mg/kg was intraperitoneally injected in group I/R+ YVAD, and the equal volume of DMSO was given instead in group I/R+ DMSO.Hippocampal and cortical samples were obtained at the end of reperfusion for determination of reactive oxygen species (ROS) content (using DCFH-DA fluorescence probe), malondialdehyde (MDA) content (using thiobarbituric acid method), superoxide dismutase (SOD) activity (by xanthine oxidase method), expression of NLRP3, cleaved-caspase-1 and apoptosis-associated speck-like protein containing a CAR (ASC) (by Western blot), nucleotide-binding domain, leucine rich family (NLR) pyrin domain containing 3 (NLRP3) expression (by immunohistochemical staining), and concentrations of IL-1β, IL-18, S100-β protein and neuron-specific enolase (NSE) in serum (by enzyme-linked immunosorbent assay).@*Results@#Compared with group S, the contents of ROS and MDA in hippocampus and cortex were significantly increased, the activity of SOD in hippocampus and cortex was decreased, the expression of NLRP3, cleaved-caspase-1 and ASC was up-regulated, and the concentrations of IL-1β, IL-18, S-100β protein and NSE in serum were increased in group I/R+ DMSO (P<0.05). Compared with group I/R+ DMSO, the contents of ROS and MDA in hippocampus and cortex were significantly decreased, the activity of SOD in hippocampus and cortex was increased, the expression of NLRP3, cleaved-caspase-1 and ASC was down-regulated, and the concentrations of IL-1β, IL-18, S-100β protein and NSE in serum were decreased in group I/R+ YVAD (P<0.05).@*Conclusion@#Pyroptosis is involved in the pathophysiological mechanism of brain injury induced by hepatic I/R injury in rats.

Role of pyroptosis in brain injury in a rat model of hepatic ischemia-reperfusion / 中华麻醉学杂志

Objective To evaluate the role of pyroptosis in brain injury in a rat model of hepatic ischemia-reperfusion (I/R).Methods Thirty clean-grade healthy male Sprague-Dawley rats of both sexes,aged 6-8 weeks,weighing 180-200 g,were divided into 3 groups (n=10 each) using a random number table method:sham operation group (group S,n=10),hepatic I/R plus dimethyl sulfoxide (DMSO)group (group I/R+DMSO,n=10),and hepatic I/R plus caspase-1 inhibitor Ac-YVAD-cmk group (group I/R+YVAD,n=10).Hepatic I/R was produced by occluding the left hepatic artery and portal vein for 90 min followed by 6-h reperfusion in anesthetized rats.At 2 h before reperfusion,Ac-YVAD-cmk 5 mg/kg was intraperitoneally injected in group I/R+YVAD,and the equal volume of DMSO was given instead in group I/R+DMSO.Hippocampal and cortical samples were obtained at the end of reperfusion for determination of reactive oxygen species (ROS) content (using DCFH-DA fluorescence probe),malondialdehyde (MDA) content (using thiobarbituric acid method),superoxide dismutase (SOD) activity (by xanthine oxidase method),expression of NLRP3,cleaved-caspase-1 and apoptosis-associated speck-like protein containing a CAR (ASC) (by Western blot),nucleotide-binding domain,leucine rich family (NLR)pyrin domain containing 3 (NLRP3) expression (by immunohistochemical staining),and concentrations of IL-1β,IL-18,S100-β protein and neuron-specific enolase (NSE) in serum (by enzyme-linked immunosorbent assay).Results Compared with group S,the contents of ROS and MDA in hippocampus and cortex were significantly increased,the activity of SOD in hippocampus and cortex was decreased,the expression of NLRP3,cleaved-caspase-1 and ASC was up-regulated,and the concentrations of IL-1β,IL-18,S-100β protein and NSE in serum were increased in group I/R+DMSO (P＜0.05).Compared with group I/R+DMSO,the contents of ROS and MDA in hippocampus and cortex were significantly decreased,the activity of SOD in hippocampus and cortex was increased,the expression of NLRP3,cleaved-caspase-1 and ASC was down-regulated,and the concentrations of IL-1β,IL-18,S-100β protein and NSE in serum were decreased in group I/R+YVAD (P＜0.05).Conclusion Pyroptosis is involved in the pathophysiological mechanism of brain injury induced by hepatic I/R injury in rats.

Comparison of the etiological constitution of two and three or more recurrent miscarriage / 中华妇产科杂志

Objective To compare the etiological constitution of recurrent miscarriage (RM) between patients with consecutive two and three or more miscarriages through combining the routine examination results and embryonic karyotype. Methods Patients with a history of two or more consecutive clinical miscarriages(≤12 weeks of gestation)consulting in the RM clinic of the First Affiliated Hospital of Sun Yat-sen University from March 2011 to January 2016 were collected. Six hundred and ninety-six with detailed history recorded, routine clinical examinations of RM and at least once embryonic karyotype were ultimately enrolled in this study. Their etiological constitution of RM were analyzed in groups of consecutive two and three or more miscarriage. The etiologies of RM in analysis consisted of women age, body mass index (BMI), chromosome abnormalities of couples, uterine abnormalities, endocrinology abnormalities and antiphospholipid syndrome(APS). Results (1)Among 696 patients, the abnormal embryonic karyotypes was 60.6%(422/696)and routine RM etiologies was 32.2%(224/696), leaving the ratio of unexplained RM was only 29.0%(202/696).(2)A total of 717 embryo karyotype were found in 696 patients, included 21 cases with twice embryo karyotype results the percentage of normal embryo was 39.7%(285/717), while abnormal ones was 60.3%(432/717). Among the types of abnormal karyotype, the most common ones (>10%)were trisomy 16(19.2%, 83/432), monosome X(11.3%, 49/432)and trisomy 22(10.9%, 47/432). (3)Among the 696 RM patients, the number of two and three or more miscarriages were respectively 446(64.1%,446/696)and 250(35.9%,250/696). Comparing groups of three or more miscarriages with two miscarriages, there were significant differencein older age as well as uterine adhesion(P<0.05). But no difference was found in body mass index(BMI), the rates of chromosome abnormalities of couples, uterine abnormalities except uterine adhesion, endocrinology abnormalities and APS (all P>0.05) between two groups. Conclusions The abnormal embryonic karyotype is the most common cause of first-trimester RM. The etiological constitution of two and three or more recurrent miscarriages is accordant, suggesting that routine clinical examination and the embryonic karyotype should be started following two consecutive clinical early miscarriages.

Investigations on occupational hazards in a kitchen waste treatment plant / 中华劳动卫生职业病杂志

Objective@#To explore the distribution and intensity of kitchen waste treatment plant, providing scientific basis for occupational diseases prevention and treatment in that industry.@*Methods@#30 operating personnel in a kitchen waste disposal enterprise were selected as the research group and 16 non-operating personnel as the control group. The epidemiological survey was carried out in June 2015 and July 2016, and the results of occupational hazards and occupational health monitoring during 2015 to 2017 were analyzed.@*Results@#The results of various occupational hazards factors during 2015 to 2017 were all in accordance with the occupational health limit, but the results of occupational health examination were abnormal. The occupational correlation could not be ruled out by the abnormality of electrical audiometry, electrocardiogram and Department of Dermatology examination.@*Conclusion@#Workers in kitchen waste treatment plant are likely to suffer low-intensity, continuous health damage. There is occupational health risk in that industry. The accumulation of basic information and the improvement of relevant standards and methods are needed for further study.

Exploration of teaching practice of foreign body airway obstruction first aid / 中华医学教育探索杂志

In order to optimize the teaching process, improve the teaching quality and cultivate of emergency nursing talents with comprehensive quality, we systematically designed the teaching process of foreign body airway obstruction first aid. From the design ideas and curriculum innovation, we focused on the use of a variety of teaching methods, and we combined it with modern information technology, which demonstrated the practicability and operability of first aid skill. This teaching practice has proved that the systematically teaching reform design is helpful to improve the learning efficiency of nursing students and cultivate the comprehensive quality of students' emergency response ability.

Quality Standard Improvement for Compound Huanghuai Tablets / 中国药师

Objective:To improve the quality standard for compound Huanghuai tablets. Methods: The main components of the preparation including Flos Sophorae Immaturus, Radix Scutellariae Baicalensis, Radix Paeoniae Rubra, Radix et Rhizoma Rhei Palma-ti, Rhizoma Imperatae, Caulis Spatholobi, Semen Coicis and Spica Prunellae Vulgaris were identified by TLC qualitatively. The content of rutin in Flos Sophorae Immaturus was determined by HPLC. A DIKMA? Spursil C18 (250 mm × 4. 6 mm, 5 μm) column was used with methanol-0. 2% phosphoric acid solution (45:55) as the mobile phase. The flow rate was 1. 0 ml·min-1 , the detection wave-length was set at 350 nm, the column temperature was maintained at 25℃, and the injection volume was 20μl. Results:The spots in TLC were clear without any interference. The calibration curve was linear within the range of 0. 0116-0. 1859 mg · ml-1 ( r =0. 9999) for rutin. The average recovery was 98. 93% (RSD=1. 14%,n=6). Conclusion: The improved quality standard is sim-ple, specific and reproducible, which can be used for the quality control of compound Huanghuai tablets.

The expressions and clinical relevance of angiotensin-receptor-1 and hypoxia-inducible factor-1α in glomerulus and juxtaglomerular apparatus of patients with lupus nephritis / 中华风湿病学杂志

Objective To detect the expressions of angiotensin-receptor-1 (AT1R) and hypoxia-inducible factor (HIF)-1αin glomeruli and juxtaglomerular apparatus of different types of lupus nephritis (LN) patients, and analyze the correlation between them with systemic lupus erythematosus disease activity index (SLEDAI) complement 3, serum creatinine and 24-hour proteinuria in order to explore the role of the two factors in the pathogenesis of lupus nephritis (LN). Methods Between May 2010 and April 2016, a total of 90 patients with LN and 8 healthy controls were selected from Department of Rheumatology, Qujing Affiliated Hospital of Kunming Medical University and the First Affiliated Hospital of Kunming Medical University. The expressions of AT1R and HIF-1αin renal biopsy specimens were measured by streptavidin-perosidase (SP) of immunohistochemical stains. Pathological graphic analysis system was used for semi-quantitative estimate. Levels of SLEDAI, C3, serum creatinin and 24-hour proteinuria were also detected. Finally the relationshipbetween the two factors with clinical data was analyzed. The ANOVA test was used for intergroup comparison, and SNK-q test was used for the two groups comparison. Pearson's analysis was used for correlation analysis. Results The AT1R [(10.55 ±0.31)% vs (7.04 ±0.11)%] and HIF-1α [(10.51 ±0.52)% vs (8.96 ±0.31)%] in the glomeruli of typeⅠLN was significantly higher than healthy controls(all P<0.05). In the early phase of LN, RAS was activated and tissues were ischemic and hypoxic. The highest expression of AT1R (18.22 ± 2.11)% and HIF-1α (19.48 ±0.61)% in glomeruli was found in type Ⅳ LN, especially in juxtaglomerular apparatus, AT1R (19.98 ±0.21)% and HIF-1α(24.90 ±0.70)%. AT1R was positively correlated with HIF-1αin the glomer-ulus (r=0.949, P<0.01) and juxtaglomerular apparatus (r=0.762, P<0.05). AT1R and HIF-1αin juxtaglomerular apparatus was positively correlated with 24-hour proteinuria (r=0.756, P<0.05 and r=0.802, P<0.05). Conclusion High expressions of AT1R and HIF-1α have been shown in active LN biopsies. It proves that RAS is activated by ischemia and hypoxia, then it up-regulates HIF-1α expression. Our results suggest that the two factors may be associated with disease activity of LN.

The expressions and clinical relevance of angiotensin-receptor-1 and hypoxia-inducible factor-1α in glomerulus and juxtaglomerular apparatus of patients with lupus nephritis / 中华风湿病学杂志

Objective To detect the expressions of angiotensin-receptor-1 (AT1R) and hypoxia-inducible factor (HIF)-1αin glomeruli and juxtaglomerular apparatus of different types of lupus nephritis (LN) patients, and analyze the correlation between them with systemic lupus erythematosus disease activity index (SLEDAI) complement 3, serum creatinine and 24-hour proteinuria in order to explore the role of the two factors in the pathogenesis of lupus nephritis (LN). Methods Between May 2010 and April 2016, a total of 90 patients with LN and 8 healthy controls were selected from Department of Rheumatology, Qujing Affiliated Hospital of Kunming Medical University and the First Affiliated Hospital of Kunming Medical University. The expressions of AT1R and HIF-1αin renal biopsy specimens were measured by streptavidin-perosidase (SP) of immunohistochemical stains. Pathological graphic analysis system was used for semi-quantitative estimate. Levels of SLEDAI, C3, serum creatinin and 24-hour proteinuria were also detected. Finally the relationshipbetween the two factors with clinical data was analyzed. The ANOVA test was used for intergroup comparison, and SNK-q test was used for the two groups comparison. Pearson's analysis was used for correlation analysis. Results The AT1R [(10.55 ±0.31)% vs (7.04 ±0.11)%] and HIF-1α [(10.51 ±0.52)% vs (8.96 ±0.31)%] in the glomeruli of typeⅠLN was significantly higher than healthy controls(all P<0.05). In the early phase of LN, RAS was activated and tissues were ischemic and hypoxic. The highest expression of AT1R (18.22 ± 2.11)% and HIF-1α (19.48 ±0.61)% in glomeruli was found in type Ⅳ LN, especially in juxtaglomerular apparatus, AT1R (19.98 ±0.21)% and HIF-1α(24.90 ±0.70)%. AT1R was positively correlated with HIF-1αin the glomer-ulus (r=0.949, P<0.01) and juxtaglomerular apparatus (r=0.762, P<0.05). AT1R and HIF-1αin juxtaglomerular apparatus was positively correlated with 24-hour proteinuria (r=0.756, P<0.05 and r=0.802, P<0.05). Conclusion High expressions of AT1R and HIF-1α have been shown in active LN biopsies. It proves that RAS is activated by ischemia and hypoxia, then it up-regulates HIF-1α expression. Our results suggest that the two factors may be associated with disease activity of LN.

Researchon expectation of the elderly about the construction of the pension mode / 重庆医学

Objective To explore the ideal living states and expectations of the elderly residing in Chengdu city,Sichuan Province and the most favorite pension system they want.To provide a theoretical basis for our country to build a suitable pension system and improve the quality of life and happiness of the elderly.Methods Qualitative-quantitative combined methods and convenient sampling were used in this study.The qualitative data with semi-structured in-depth interviews had been obtained from the selected 40 elderly who live in Chengdu,while the quantitative data with the questionnaires were obtained from other 130 elderly.Results Family location,gender,educational background,age had impact on the expected pension system of the elderly(P＜0.05).Conclusion Different elderly have different expectation on the pension system,the current pension system should be reformed according to their expectations.

Diagnosis and application of C-reactive protein, prealbumin and WBC count in neonatal infectious diseases / 重庆医学

Objective To explore the diagnostic and clinical application value of combined detection of C-reactive protein (CRP),serum prealbumin (PA) and white blood cell (WBC) count in neonatal infectious diseases.Methods A total of 187 fullterm newborns were collected in this study,including 92 newborns of bacterial infection as the infection group and 95 newborns of non-infection diseases as non-infection group.The abnormal rates of CRP,PA and WBC in the two groups were measured;the sensitivity,specificity,false positive rate and false negative rate were compared between the single detection and combined detection of WBC,PA,CRP;the changes of the three indexes in the infection group were compared between before and after treatment.Results The abnormal rates of CRP,PA and WBC in the infection group were significantly higher than those in the non-bacterial infection diseases group (P＜0.05).The sensitivity and specificity of combined detection of CRP+ PA + WBC were higher than those of single detection of CRP,PA and WBC;after treatment,the level of CRP in the infection group was significantly decreased,the level of PA was significantly increased and the WBC count returned to normal(P＜0.05).Conclusion The combined detection of CRP,PA and WBC has an important clinical value in the early diagnosis of neonatal bacterial infection.

Studies on Diterpenoid Alkaloids in Aconitum Transsectum / 中国药师

Objective:To study the chemical constituents in the roots of Aconitum transsectum. Methods:The compounds were i-solated and purified by column chromatography on the columns of silica gel, Al2 O3 and Sephadex LH-20, and their structures were elu-cidated on the basis of spectroscopic evidence ( MS and NMR) . Results:Totally 12 compounds were isolated from A. transsectum, and characterized as yunaconitine (1), indaconitine (2), crassialine A (3), 8-deacetylyunaconitine (4), talatisamine (5), chasma-conitine (6), 14-acetyltalatisamine (7), vilmoraconitine (8), sachaconitine (9), 14-acetylsachaconitine (10), acoforestinine (11) and vilmorrianine C (12). Conclusion:Compounds 8-11 are obtained from A. transsectum for the first time.

Quality Standard Improvement for Qingyuantiaozhi Capsules / 中国药师

Objective:To improve the quality standard for Qingyuantiaozhi capsules. Methods:The main components of the prep-aration, such as Chrysanthemum, Anthraquinones, Hawthorn and Radix Rehmanniae Preparata, were identified by TLC qualitatively. The content of chlorogenic acid in chrysanthemum was determined by HPLC. A DIKMA Spursil C18(250 ×4.6 mm,5 μm)column was used with methanol-0. 2% phosphoric acid solution(9 ∶91) as the mobile phase. The flow rate was 1. 0 ml·min-1, the detection wavelength was set at 327 mn and the sample size was 20 μl. Results:The spots in TLC were clear without any interference. The cali-bration curve was linear within the range of 4. 425 2-30. 976 4μg·ml-1(r=0. 999 9) for chlorogenic acid. The average recovery was 101. 18% (RSD=1. 88%, n=6). Conclusion:The improved quality standard is specific, accurate and reproducible, which can be used for the quality control of Qingyuantiaozhi capsules.

Study on Diterpenoid Alkaloids from the Roots of Aconitum Straminiflorum / 中国药师

Objective:To study the chemical constituents of Aconitum straminiflorum. Methods:The air-dried roots of A. stra-miniflorum were powdered and extracted three times with 90% ethonal under reflux. After the removal of the solvent under reduced pressure,the crude extract was dissolved in 1. 5% HCl solution(7 L). The acidic solution was basified to pH 9. 0 with ammonia (25%)and extracted with CHCl3 to obtain crude extract of total alkaloids after the removal of CHCl3 . The compounds were isolated and purified by column chromatography and identified based on spectral analysis( MS,1 H-üMR and 13 C-üMR). Results:Totally 7 compounds were isolated from A. straminiflorum,and characterized as aconosine(1),13-deoxyludaconitine(2),dolaconine(3), ezochasmanine(4),talatisamine(5),scopaline(6)and cammaconine(7),respectively. Conclusion:Seven diterpenoid alkaloids are isolated from A. Straminiflorum for the first time.

Prognostic value of plasma pentraxin-3 levels in patients with stable coronary artery disease after drug-eluting stent implantation.

Pentraxin-3 (PTX3) is an inflammatory marker thought to be more specific to cardiovascular inflammation than C-reactive protein (CRP). Our aim was to assess the prognostic value of PTX3 in patients with stable coronary artery disease (CAD) after drug eluting stent (DES) implantation. Plasma PTX3 levels were measured before percutaneous coronary intervention (PCI) and at 24 h post-PCI in 596 consecutive patients with stable CAD. Patients were followed up for a median of 3 years (range 1-5) for major adverse cardiovascular events (MACEs). We found that the post-PCI plasma PTX3 levels were significantly higher at 24 h after PCI than pre-PCI, patients with MACEs had higher post-PCI PTX3 levels compared with MACEs-free patients, patients with higher post-PCI PTX3 levels (median > 4.384 ng/mL) had a higher risk for MACEs than those with PTX3 < 4.384 ng/mL, and post-PCI PTX3, cTnI, multiple stents, and age but not high-sensitivity CRP (hsCRP) were independently associated with the prevalence of MACEs after DES implantation. The present study shows that post-PCI PTX3 may be a more reliable inflammatory predictor of long-term MACEs in patients with stable CAD undergoing DES implantation than CRP. Measurement of post-PCI PTX3 levels could provide a rationale for risk stratification of patients with stable CAD after DES implantation.

Icariin attenuates renal interstitial fibrosis by reducing aldosterone in SHR / 中国药理学通报

Aim To investigate the effect of icariin ( ICA) on renal interstitial fibrosis in SHR and explore its mechanism. Methods Fourteen male SHR of 13-week-old were randomly divided into model group( n=7 ) and ICA group ( n=7 ) , and WKY as control group (n=7). One week after adaptive breeding,the rats in the ICA group were given ICA 40 mg·kg-1,ig,bid to 26-week-old. The other rats in the model group and control group were given the same amount of normal sa-line. Then, the morphological changes of the kidney were observed by HE and Masson staining,respective-ly. The contents of plasma aldosterone andⅢcollagen were measured by double antibody sandwich method. The mRNA expressions of TGF-β1 , Smad2 , CTGF and FN were examined by real time RT-PCR. Results Compared with the normal control group, the kidney structures of model group were disordered,the mesang-ial matrix and the tubular interstitial fibrosis were in-creased. The contents of plasma aldosterone and Ⅲcollagen were increased in model group ( P <0. 01 ) . And the mRNA expressions of TGF-β1 , Smad2 , CTGF and FN in kidney tissues were up-regulated in model group( P <0. 01 or P <0. 05 ) . Compared with the model group,the kidney structures were improved and the contents of plasma aldosterone and Ⅲ collagen were reduced, as well as the mRNA expressions of TGF-β1,Smad2,CTGF and FN in kidney tissues were down-regulated(P<0. 01 or P<0. 05)in ICA group. Conclusion ICA may have anti-renal interstitial fi-brosis effect on SHR,and the mechanism might be re-lated to the reduced plasma aldosterone levels and the down-regulated expression of TGF-β1 and Smad2 .

Establishment of animal model of intestinal motility disorders after severe craniocerebral trauma / 中华创伤杂志

Objective To build model of intestinal motility disorders (IMD) in mice after severe craniocerebral trauma by using modified free fall impact method so as to lay the foundation for further study on development mechanism of postinjury IMD.Methods Severe craniocerebral trauma in mice was induced by a cylindrical sleeve rod impactor.Pathological changes of cerebral and intestinal tissue in mice were observed at 1,6 hours and 1,3,7 days after severe craniocerebral trauma.Brain water content and intestinal propulsion percentage were detected in each time point as well.Results Acute inflammation and congestion of the intestine were observed in phase of cerebral hemorrhage and edema after severe craniocerebral trauma in mice.Brain water content was increased at 6 hours and reached the peak at 24 hours.Intestine propulsion percentage showed a fall at one hour and dropped to the lowest level at 6 hours.Conclusions IMD exists in mice with severe craniocerebral trauma.The device involving modified Feeney free fall impact method can successfully establish animal model of IMD in mice with severe craniocerebral trauma.