Impact of autonomic nerve function on motor function in patients with post-stroke depression / 中国康复理论与实践

ObjectiveTo explore the impact of autonomic nerve function on motor function in patients with post-stroke depression (PSD) from the perspective of regional homogeneity (ReHo). MethodsFrom January to December, 2020, a total of 60 inpatients and outpatients with cerebral infarction in the Affiliated Brain Hospital of Nanjing Medical University were divided into control group (n = 30) and PSD group (n = 30). Two groups were assessed using Fugl-Meyer Assessment (FMA), modified Barthel Index (MBI) and Hamilton Depression Scale (HAMD). Heart rate variability (HRV) was measured. Ten patients in each group were selected randomly to undergo resting state functional magnetic resonance imaging (rs-fMRI) to calculate ReHo. ResultsAll HRV indices were lower in PSD group than in the control group (|t| > 2.092, P < 0.05). In PSD group, FMA and MBI scores showed positive correlations with 24-hour standard deviation of normal-to-normal R-R intervals (SDNN), the root mean square of successive differences between normal heartbeats over 24 hours (RMSSD), the percentage of differences between adjacent normal R-R intervals over 24 hours that were greater than 50 ms (PNN50), total power (TP), very low frequency power (VLF) and low frequency power (LF) (r > 0.394, P < 0.05), and showed negative correlations with HAMD scores (|r| > 0.919, P < 0.001). HAMD scores in PSD group were negatively correlated with SDNN, RMSSD, PNN50, TP and VLF (|r| > 0.769, P < 0.001). Compared with the control group, the ReHo increased in PSD group in the right rectus gyrus (142 voxels, t = 6.575), the left medial and paracingulate gyri (204 voxels, t = 4.925) (GRF correction, P-Voxel < 0.005，P-Cluster < 0.05); and reduced in the right cerebellum (191 voxels, t = -6.487), the left middle temporal gyrus (140 voxels, t = -5.516), and the left precentral gyrus (119 voxels, t = -4.764) (GRF correction, P-Voxel < 0.005，P-Cluster < 0.05) in PSD group. ConclusionAutonomic nerve function is related to motor dysfunction in patients with PSD. The modulation of emotional, cognitive and motor brain regions by the autonomic nervous system may play a role in influencing the motor function in patients with PSD.

Role and mechanism of hepatic stellate cells in the pathogenesis of mice with acute-on-chronic liver failure / 临床肝胆病杂志

ObjectiveTo investigate the role of hepatic stellate cell (HSC) inflammation in the pathogenesis of acute-on-chronic liver failure (ACLF). MethodsA total of 45 male Kunming mice were randomly divided into control group, model group, and N-acetylcysteine (NAC) group. The mice in the model group and the NAC group were given injection of human serum albumin to establish a model of chronic liver disease, followed by intraperitoneal injection of the endotoxins lipopolysaccharide (LPS) and D-galactosamine (D-GlaN) to induce ACLF, and those in the control group were given injection of an equal volume of normal saline; the mice in the NAC group were given NAC since 1 week before the induction of NAC. The mice in the model group and the NAC group were sacrificed at 48 hours after the injection of LPS and D-GlaN. ELISA was used to measure the serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) and the levels of malondialdehyde (MDA) and superoxide dismutase (SOD) in liver tissue; HE staining was used to determine liver pathological score; ELISA was used to measure the serum levels of LPS and interleukin-1β (IL-1β). LX2 cells were stimulated by LPS and H2O2 with the presence or absence of NAC, and ELISA was used to measure the levels of IL-1β and interleukin-6 (IL-6) in medium. LX2 cells were stimulated by LPS and H2O2, and then HL7702 cells were cultured with LX2 medium; Western blot was used to measure the expression of caspase-3 and caspase-8 in HL7702 cells, and flow cytometry was used to measure the apoptosis of HL7702 cells. A one-way analysis of variance was used for comparison of continuous data between multiple groups; the least significant difference t-test was used for comparison of data with homogeneity of variance between two groups, and the Tamhane’s T2 test was used for comparison of data with heterogeneity of variance. The Kaplan-Meier survival analysis was used to evaluate survival time, and the log-rank test was used for comparison. ResultsAt 48 hours, all mice in control group survived, while 3 mice in the model group and 8 mice in the NAC group survived, suggesting that the NAC group had a better survival rate of mice than the model group (P＜0.001). Compared with the control group and the NAC group, the model group had significant increases in the serum levels of AST and ALT and the level of MDA in liver tissue, as well as a significant reduction in the level of SOD in liver tissue (all P＜0.01). The model group had a significantly higher liver pathological score than the control group and the NAC group (both P＜0.05). Both LPS and H2O2 promoted the secretion of IL-1β and IL-6 in LX2 cells, and NAC effectively inhibited the pro-inflammatory effect of H2O2 and LPS (all P＜0.05). H2O2 and LPS acted on LX2 cells and promoted the apoptosis of HL7702 cells (all P＜0.05). ConclusionLPS can promote HSC inflammation via reactive oxygen species and participates in the progression of liver failure by inducing hepatocyte apoptosis.

Staging and typing of chest CT images: A quantitative analysis based on an ambispective observational cohort study of 125 patients with COVID-19 in Xiangyang, China

BackgroundThe stage of CT images was rarely studied and the relationship between the severity of Coronavirus Disease 2019 (COVID-19) and CT images has not been studied based on systematic quantitative analysis currently. PurposeTo investigate the staging duration and classification of CT images of patients with COVID-19 based on quantitative analysis. Materials and MethodsThis is an ambispective observational cohort study based on 125 patients with COVID-19 from Jan 23 to Feb 28, 2020. The stage of CT and pulmonary lesion size were quantitatively analyzed. The categorical regression analysis based on optimal scale (CATREG) was performed to evaluate the association of CT score, age, and gender with the clinical type. ResultsThe CT images of 125 patients with COVID-19 (50.13 {+/-} 16.91 years, 66 women) were analyzed in this study. Except for pre-early stage, the duration of early, progression-consolidation, and dissipation stage of CT images was 3.40 {+/-} 2.31, 10.07 {+/-} 4.91, and 20.60 {+/-} 7.64 days, respectively. The median CT score was 5.00 (2.00-8.50) during the first 30 days, which reached a peak on the 11th day. Significant differences were found between the median CT scores of different clinical types (P<0.05). Besides, the age was correlated with the clinical type (P<0.001), the CT scores of 0.00-11.50, 11.50-16.00, and 16.00-20.00 were separately correlated with the moderate, severe, and critical type with the output accuracy 69.60%. ConclusionThe four-stage staging method based on quantitative analysis is consistent with the change rules of staging features and COVID-19. Quantitative study by scoring pulmonary lesion sizes accurately revealed the evolvement of pulmonary lesions and differences between different clinical types. SummaryQuantitative study of the stage duration and classification of chest CT images can objectively reveal the relationship between Coronavirus Disease 2019 (COVID-19) and chest CT images. Key Results1. A four-stage staging method was proposed. Except for pre-early stage, the duration of early, progression-consolidation, and dissipation stage of CT images was 3.40 {+/-} 2.31, 10.07 {+/-} 4.91, and 20.60 {+/-} 7.64 days, respectively. 2. The severer the disease, the higher the median CT scores and their peak value. 3. The CT scores of 0.00-11.50, 11.50-16.00, and 16.00-20.00 were separately correlated with the moderate, severe, and critical type.

The cross-sectional study of hospitalized coronavirus disease 2019 patients in Xiangyang, Hubei province

ObjectiveTo describe the epidemiological and clinical characteristics of the Coronavirus Disease 2019 (COVID-19) hospitalized patients and to offer suggestions to the urgent needs of COVID-19 prevention, diagnosis and treatment. MethodsWe included 102 confirmed COVID-19 cases hospitalized in Xiangyang No.1 peoples hospital, Hubei, China until Feb 9th, 2020. Demographic data, laboratory findings and chest computed tomographic (CT) images were obtained and analyzed. FindingsAll cases were confirmed by real-time RT-PCR, including 52 males and 50 females with a mean age of 50.38 years (SD 16.86). Incubation time ranged from one to twenty days with a mean period of 8.09 days (SD 4.99). Fever (86[84.3%] of 102 patients), cough (58[57%]), fatigue (28[27%]), shortness of breath (24[23%]), diarrhea (15[15%]), expectoration (13[12%]), inappetence (11[10%]) were common clinical manifestations. We observed a decreased blood leukocyte count and lymphopenia in 21 (20.6%) and 56 (54.9%) patients, respectively. There were 66 (68%) of 97 patients with elevated C-reactive protein levels and 49 (57.6%) of 85 with increased erythrocytes sedimentation rate. Higher levels of procalcitonin and ferritin were observed in 19 (25.3%) of 75 and 12 (92.3%) of 13 patients, respectively. Eight patients were admitted to intensive care unit (ICU), six developed respiratory failure, three had multiple organ failure and three died. The cumulative positivity rate over three rounds of real-time RT-PCR was 96%. One-hundred patients were found with typical radiological abnormalities in two rounds of chest CT scans, indicating a 98% consistency with real-time RT-PCR results. InterpretationMost COVID-19 patients in Xiangyang were secondary cases without sex difference, and the rate of severe case and death was low. Middle-to-old-age individuals were more susceptible to the virus infection and the subsequent development of severe/fatal consequences. The average incubation period was longer among our patients. We recommend prolonging the quarantine period to three weeks. Three times real-time RT-PCR plus two times CT scans is a practical clinical diagnosis strategy at present and should be used to increase the accuracy of diagnosis, thereby controlling the source of infection more effectively.

Depression after Subarachnoid Hemorrhage: A Systematic Review / 대한뇌졸중학회지

Background@#and Purpose Depression is common and debilitating illness accompanying many neurological disorders including non-traumatic subarachnoid hemorrhage (SAH). The aim of this systematic review was to identify and critically appraise all published studies that have reported the frequency, severity and time course of depression after SAH, the factors associated with its development and the impact of depression on patients’ quality of life after SAH. @*Methods@#The PubMed database was searched for studies published in English that recruited at least 40 patients (>18 years old) after SAH who were also diagnosed with depression. @*Results@#Altogether 55 studies covering 6,327 patients met study entry criteria. The frequency of depression ranged from 0% to 61.7%, with a weighted proportion of 28.1%. Depression remained common even several years after the index SAH. Depression after SAH was associated with female sex, premorbid depression, anxiety, substance use disorders or any psychiatric disorders, and coping styles. Comorbid cognitive impairment, fatigue, and physical disability also increased the risk of depression. Aneurysmal SAH and infarction may be related to depression as well. Depression reduces the quality of life and life satisfaction in patients after SAH. @*Conclusions@#Depression is common after SAH and seems to persist. Further research is needed to clarify its time course and identify the neuroendocrine and neurochemical factors and brain circuits associated with the development of post-SAH depression. Randomized controlled treatment trials targeting SAH-related depression are warranted.

Development of Geriatric Nursing Core Literacy Evaluation Scale and assessment of its validity and reliability / 中国实用护理杂志

Objective:To develop a geriatric nursing core literacy evaluation scale and to test its validity and reliability.Methods:The scale item pool was constructed by referring to relevant literatures and expert consultation method was used to form initial scale. A preliminary investigation was conducted among 40 nurses to form the formal scale, and then 252 nurses were selected to test the validity and reliability of the formal scale.Results:The formal scale consisted of four dimensions and 37 items. The Cronbach α coefficient of the formal scale was 0.980, the content validity index was 0.912, exploratory factor analysis identified 4 principal factors (knowledge geriatric nursing core literacy, skill geriatric nursing core literacy, cognitive geriatric nursing core literacy, belief geriatric nursing core literacy) and explained 73.135% of the total variance.Conclusion:The geriatric nursing core literacy evaluation scale has good reliability and validity, which can be used to evaluate the geriatric nursing core literacy of nursing staffs.

Inflammation and cerebral small vessel disease / 国际脑血管病杂志

Studies have shown that inflammation is involved in the early pathogenesis process of cerebral small vessel disease and plays an important role in disease progression.This article reviews the possible mechanisms of inflammation in cerebral small vessel disease.

Research on the Legal and Ethical Regulation of Internet Medical Big Data / 中国医学伦理学

The use of internet medical big data is conducive to improving the efficiency and quality of health care services,but also contains the problems about the risk of the infringement of the personal information right and privacy right,the hidden dangers of data security,and how to allocate the economic interests of big data.In the internet medical big data ethics,it should establish the regulation principles from four levels of privacy,confidentiality,transparency and identity.In the legal regulation,it should clear the distribution of the economic interests of big data,define the personal information right and data right and have classification protection.

Photophysical performance comparison between bulk Cu(I) complex and its electrospinning fibers: Synthesis and characterization.

In this report, a diamine ligand having an electron-pulling group in its conjugation plane was designed. A methyl group was connected with this diamine ligand, hoping to further increase its steric hindrance. Its Cu(I) complex was synthesized and characterized by NMR, single crystal analysis and photophysical analysis. There was a distorted tetrahedral coordination field in this Cu(I) complex. Its onset electronic transition owned a mixed character of metal-to-ligand-charge-transfer which suffered from bad geometric relaxation. To limit this geometric relaxation and improve emissive performance, this Cu(I) complex was doped into a polymer host through electrospinning technique. Photophysical comparison between solid state sample, solution sample and composite samples indicated that excited state geometric relaxation was effectively limited by polymer immobilization effect, resulting in improved emissive performance, such as emission blue shift, long emission decay lifetime and better photostability.

Two rhodamine derived chemosensors excited by up-conversion lattice for cysteine detection: Synthesis, characterization and sensing behavior.

In this paper, two chemosensors derived from rhodamine were reported for cysteine optical recognition. An up-conversion NaYF4 lattice was applied as excitation host to minimize chemosensor photobleaching. This NaYF4 lattice was firstly modified with α-cyclodextrin, making it water dispersible. It was found that chemosensor absorption matched well with host emission. The energy transfer between this excitation host and our chemosensors was analyzed and confirmed by their spectral analysis and emission decay lifetime comparison. Detailed analysis suggested that the recognition mechanism between our chemosensors and cysteine was a simple one with binding stoichiometry of 1:1. Our chemosensors showed emission "off-on" effect towards cysteine with good photostability. Maximum sensitivity was obtained as 7.90 for our chemosensors with a linear working curve. S substituent was found positive to improve selectivity.

The initial investigation of the change of myeloid dendritic cells level in ankylosing spondylitis after treatment with TNF-α blocker / 中华风湿病学杂志

Objective To investigate the role of myeloid dendritic cells(mDC)in the pathogenesis of ankylosing spondylitis (AS),and to study the mechanism of tumour necrosis factor (TNF)-α blocker on the treatment of AS by counting the number of mDC before and after the treatment.Methods Peripheral blood from 21 AS patients treated with 50 mg rhTNFR-Fc and 15 AS patients treated with placebo were investigated at week 0,week 2 and week 6 in a randomized,double-blind,placebo-controlled trial.Three-color flow cytometry analysis was used to investigate the change of the number of mDC before and after the treatment.And their correlation with the clinical parameters was analyzed.Results MHC Class Ⅰ positive mDC(Lin-/CD11c+/HLA-abc+)in AS patients was slightly less than in healthy controls (not statistically significant).No significant change in MHC Class Ⅰ mDC number was observed after drug treatment.The number of MHC Class Ⅱ mDC cells was not correlated with clinical parameters.Conclusion The treatment with rhTNFR-Fc in AS induces a significant upregnlation of MHC-Ⅱ DC.

Color Doppler ultrasonography of tranient synovitis of the hip in children / 中国医学影像技术

Objective To investigate the value of color Doppler ultrasonography in early diagnosis and subsequent follow-up of the transient synovitis of the hip in children. Methods Color Doppler ultrasonography was performed on 80 children with transient synovitis of the single hip, and the characteristics of the blood signal changes in the synovial membrane of the hip joint were observed before treatment, 4 days and 8 days after treatment, while the normal hip joints were examined as the controls. Results Abnormalities in the injured side of the hip joints were displayed in all 80 children. Obviously increased blood signal of the injured side was detected with injured before treatment, but gradually decreased 4 days after treatment, and became similar to the healthy side after 8 days. Conclusion CDFI has an important role in monitoring changes of blood supply, and affords clinical application value in the therapeutic effect observation in transient synovitis of the hip in children.

Treatment of pentoxifyline on collagen-induced arthritis in rats / 中华风湿病学杂志

Objective To evaluate the efficacy and safety of pentoxifyline (PTX) on the treatment of collagen-induced arthritis in rats. Methods Wistar rat arthritis model was induced by bovine Ⅱ collagen (BⅡC) . The rats were randomly divided into four groups including normal control group, CIA control group treated with normal saline, indometaein group and PTX group. The body weight, the hind paw volumes, the arthritic index of all rats at different time points were observed and measured. At the end of the experiment, the radiographic changes and the synovial pathology score of rat ankle joints were evaluated to analyze the treatment role of PTX on CIA inflammation. Results The collagen-induced arthritis model was induced successfully at 11~13 days after first immunization with type Ⅱ collagen. After administration, the rat weights of PTX group were higher than that of CIA group (P<0.01) and no significant difference was found between PTX group and normal control group since week three. The degree of swelling of ankle joints in PTX group was decreased since the 17th day. At week five, the volumes of hind paw in PTX group and indometacin group was not different from that in normal control group (P>0.05). Compared with CIA group, the degree of synovial swelling of PTX group and indometacin group was decreased, synovial proliferation and inflammatory cell infiltrations was mild, and vascular hyperplasia and pannus was significantly declined. No cartilage erosion and necrosis was found. The pathological score of PTX group and indometacin group was significantly decreased(P<0.01). The parenchyma of ankle joint was swollen and no osteoporosis and bone erosion was found in PTX group and indometacin group. Conclusion PTX can ameliorate the symptoms and inhibit the swollen of rat arthritis. It is effective and with good safety profile.

Effect of Shenfu infusion on myocardial KATP channel in rats after ischemia/reperfusion / 中国组织工程研究

BACKGROUND: KATP channel regulates the response of cells to hypoxia and ischemia, mediates and is involved in the protection for cells or tissue organs. Our previous research confirms that Shenfu injection has good protective effect on myocardial ischemia/reperfusion injury in rats. There have been no reports on whether this protective effect is related to KATP channel in WeiPu deriodical database, WanFang database and Medline database until October 2005.OBJECTIVE: To observe the protective effect of Shenfu injection on myocardial ischemia/reperfusion injury in rats, and analyze its correlation with KATP channel.DESIGN: Completely randomized grouping design, randomized controlled trial.SETTING: Department of Anesthesiology, Second Hospital Affiliated to Dalian Medical University; Department of Anesthesiology, Second Hospital Affiliated to Chongqing Medical University.MATERIALS: Twenty-four adult SD rats of clean grade, of either gender, weighing 240 to 320 g, were employed in this trial. Shenfu injection (Sanjiu Medical & Pharmaceutical, Co., Ltd., Batch No. 031002) and glibenclamide (National Institute for the Control of Pharmaceutical and Biological Products) were employed.METHODS: This trial was carried out in the Laboratory of Anesthesiology, Second Hospital Affiliated to Chongqing Medical University from April to December 2004. Myocardial ischemia/reperfusion injury models were employed. Twenty-four rats were randomized into 4 groups, with 6 in each group: sham-operation group [putting through thread, but without ligation of left anterior descending coronary artery, 8 mL/kg normal saline, intravenous injection (i.v.)], ischemia/reperfusion group (8 mL/kg normal saline, i.v.), Shenfu injection group (8 mL/kg Shenfu injection, i.v.) and Shenfu injection + glibenclamide group (0.33 mg/kg glibenclamide and 8 mL/kg Shenfu injection, i.v.). Administration in each group was conducted 15 minutes before ligation except for that in sham-operation group (immediately after putting through thread). About 6 mL blood was taken from cardiac apex. Left ventricular anterior wall was divided into 3 parts, and then which were used for homogenate, electron microscope observation and immunohistochemical detection separatety. The superoxide dismutase (SOD) activity, malondialdehyde (MDA) level, expressions of tumor necrosis factor-α(TNF-α) and interleukin 6 (IL-6)and plasm cTnl level in myocardial tissue were detected. Ultra-structural changes of myocardial tissue were observed.MAIN OUTCOME MEASURES: SOD activity, MDA level, expressions of TNF-α and IL-6, plasm cTnI level and ultra-structural changes of myocardial tissue. RESULTS: All the 24 rats were involved in the result analysis, without deletion. ① Compared with sham-operation group,SOD activity in myocardial tissue in ischemia/reperfusion group was decreased, while the expressions of TNF-α and IL-6 were increased, with statistical difference (P ＜ 0.01). MDA level in the ischemia/reperfusion group was higher than that in the sham-operation group (P ＜ 0.01); Compared with ischemia/reperfusion group, SOD activity was increased, MDA level and expressions of TNF-α and IL-6 were all decreased in Shenfu injection group(P ＜ 0.01); There were no significant differences in above-mentioned indexes between Shenfu injection group and Shenfu injection + glibenclamide group (P ＞0.05). ②Compared with sham-operation group, the plasm cTnl level in the ischemia/reperfusion group and Shenfu injection+ glibenclamide group was significantly increased (P ＜ 0.01); Compared with ischemia/reperfusion group, plasm cTnl level in the Shenfu injection group was significantly decreased in Shenfu injection group (P ＜ 0.01); There were no signifi cant differences in plasm cTnl level between Shenfu injection group and Shenfu injection + glibenclamide group. ③ In the sham-operation group, the ultrastructure of myocardial cells was basically normal and mitochondrium swelled a little; In the ischemia/reperfusion group, karyolysis appeared, mitochondrium swelled obviously and considerable neutrophils infil trated; In the Shenfu injection group, myofilament of myocardial cells dissolved, mitochondrium swelled and nuclear mem brane was integrity; In the Shenfu injection + glibenclamide group, mitochondrium obviously swelled, myofilament present ed focus dissolving, sarcoplasmic reticulum expanded a little and allochromacy assembled in the edge of cells. CONCLUSION: Glibenclamide suppresses myocardial KATP channel, but does not eliminate the protective effect of Shenfu injection on myocardial ischemia/reperfusion injury. KTAP channel does not play an important role in the protection of Shenfu injection for myocardial ischemia/reperfusion injury.

Effect of Shenfu parenteral injection on the expressions of Bcl-2, Bax and c-Fos proteins in ischemia reperfusion myocardium of rats / 中国组织工程研究

BACKGROUND: It has been confirmed that Shenfu parenteral injection can ameliorate and treat various shocks, heart failure, myocardial ischemia and supraventricular/ventricular arrhythmia, and it also has a good protective effect on myocardial ischemia/reperfusion injury in rats.OBJECTIVE: To observe the effects of Shenfu parenteral injection on the protein expressions of myocardial apoptosis-related genes of Bcl-2, Bax and c-Fos in rats with acute ischemia/reperfusion injury.DESIGN: A complete randomized grouping design, controlled experiment.SETTING: Department of Anesthesiology, the Second Affiliated Hospital,Chongqing University of Medical Sciences.MATERIALS: The experiments were carried out in the Staff Room of Anesthesiology, the Second Affiliated Hospital, Chongqing University of Medical Sciences from April to December in 2004. Thirty-five healthy adult Wistar rats were provided by the experimental animaI center of Daping Hospital, Third Military Medical University of Chinese PLA. Shenfu parenteral injection was the TCM formula of Shenfu Tang, which is for recuperating depleted yang and rescuing the patient from collapse, and its main components are ginsenoside and aconitum alkaloid. It was the product of Yaan Sanjiu Pharmaceutical Co., Ltd., 10 mL/piece, the batch number was 030110.METHODS: In vivo models of myocardial ischemia/reperfusion injury were used. The 35 rats were divided into 5 groups according to the number of random number table, with 7 rats in each group: ① Sham-operated group: The rats were treated with only insertion of thread without ligation, followed by intravenous injection of saline (8 mL/kg), and then observed for 120 minutes. ② Shenfu parenteral injection 30-minute group: The rats were treated with intravenous injection of Shenfu parenteral injection (8 mL/kg) at 15 minutes before ligation, and then the left coronary artery anterior descending branch was ligated for 40 minutes and reperfused for 30 minutes. ③ Shenfu parenteral injection 120-minute group: The rats were reperfused for 120 minutes, and the others were the same as those in the Shenfu parenteral injection 30-minute group. ④ Saline 30-minute control group: The rats were treated with intravenous injection of saline (8 mL/kg) at 15 minutes before ligation, and then the left coronary artery anterior descending branch was ligated for 40 minutes and reperfused for 30 minutes. ⑤ Saline 120-minute control group: The rats were reperfused for 120 minutes, and the others were the same as those in the saline 30-minute control group. The expressions of Bcl-2, Bax and c-Fos proteins in myocardial tissues were detected with immunohistochemical method.MAIN OUTCOME MEASURES: The expressions of Bcl-2, Bax and cFos proteins in myocardial tissues of rats in each group were observed.RESULTS: All the 35 rats were involved in the analysis of results without deletion. ①As compared with the sham-operated group, the expressions of Bcl-2, Bax or c-Fos protein in myocardium were significantly increased(P ＜ 0.01), but the Bcl-2/Bax ratios were significantly decreased (P ＜0.01) in the saline 30 and 120-minute groups. ② As compared with corresponding saline groups, the expressions of Bcl-2 protein in the Shenfu parenteral injection 30 and 120-minute groups were significantly increased (P ＜ 0.01), the expressions of Bax and c-Fos proteins were remarkably decreased (P ＜ 0.01), and the Bcl-2/Bax ratios were significantly increased (P ＜ 0.01).CONCLUSION: Protective effect of Shenfu parenteral injection on ischemia/reperfusion myocardium may be correlated with its promotion of Bcl-2 protein expression, restrain to Bax and c-Fos protein expressions, and increase of Bcl-2/Bax ratio, and it restrains the apoptosis of myocardial cells.

Comparative Analysis between CT Appearances,Bronchofiberscopic Results and Pathological Examinations in Bronchogenic Stenosis / 实用放射学杂志

Objective To evaluate CT and bronchofiberscopic value in diagnosing bronchogenic stenosis.Methods The CT and bronchofiberscopic appearances of bronchogenic stenosis in 45 cases were analysed comparatively with the results of the pathological examinations.Results Among the 45 cases, there were central pulmonary carcinoma in 25 patients, endobronchial tuberculosis in 10 patients, bronchogenic pneumonia in 9 patients and radiation pneumonia in 1 patient all confirmed pathologically. Conclusion CT and bronchofiberscope are of respectively advantages in diagnosing bronchogenic stenosis,combining both of them,the diagnosis and differential diagnosis of bronchogenic stenosis can be improved.