Exploration of the pharmacological components and therapeutic mechanisms in treatment of Alzheimer's disease with Polygonati Rhizoma and its processed product using combined analysis of metabolomics, network pharmacology, and gut microbiota.

Polygonati Rhizoma (PR, Huangjing in Chinese) and its processed product (PRP), which are used in Traditional Chinese medicine (TCM) for cognitive enhancement and treatment of Alzheimer's disease (AD), have not been fully explored in terms of the different mechanisms underlying their anti-AD effects. Therefore, we used APP/PS1 mice as an AD model to assess the effects of PR and PRP on anxiety-like behaviors, cognitive function, memory performance, and pathological changes in the murine brain. UPLC-HRMS was applied to identify the components of PR and PRP that entered into the blood and brain. Network pharmacology was used to elucidate potential mechanisms underlying the improvement of AD. Differences in the intestinal flora composition between mice treated with PR and PRP were investigated using 16S rRNA sequencing, establishing a correlation between pharmacological components and distinct flora profiles. The results revealed that both PR and PRP interventions ameliorated cognitive deficits and attenuated Amyloid ß (Aß) plaque deposition in the brains of AD mice. Seven specific blood-entering components, namely glutamic acid, Phe-Phe, and uridine, etc., were associated with PR intervention, whereas ten specific blood-entering components including (2R,3S)-3-isopropylmalate, 3-methylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione, and 3-methoxytyrosine were related to PRP intervention. Uridine was identified as a common brain-penetrating component in both PR and PRP interventions. Network pharmacology analysis suggested that the NOD-like receptor signaling pathway, Calcium signaling pathway and Alzheimer's disease were specific pathways targeted in AD treatment using PR intervention. Moreover, the apoptosis pathway was specifically linked to AD treatment during PRP intervention. Furthermore, the administration of both PR and PRP enhanced the abundance and diversity of the intestinal flora in APP/PS1 mice. Western blotting confirmed that PR excels in regulates inflammation, whereas PRP balances autophagy and apoptosis to alleviate the progression of AD. This study offers valuable insights and establishes a robust foundation for further comprehensive exploration of the intrinsic correlation between TCM and AD.

The association of intraoperative positive end-expiratory pressure with pulmonary complications after thoracoscopic lung surgery: A propensity score-matching study / 中国胸心血管外科临床杂志

@#Objective To evaluate the correlation between positive end-expiratory pressure (PEEP) level and postoperative pulmonary complications (PPCs) in patients undergoing thoracoscopic lung surgery. Methods The clinical data of patients who underwent elective thoracoscopic lung surgery at West China Hospital of Sichuan University from January 2022 to June 2023 were retrospectively analyzed. Patients were divided into 2 groups according to intraoperative PEEP levels: a PEEP 5 cm H2O group and a PEEP 10 cm H2O group. The incidence of PPCs in the two groups after matching was compared using a nearest neighbor matching method with a ratio of 1∶1, setting the clamp value as 0.02. Results A total of 538 patients were screened, and after propensity score-matching, a total of 229 pairs (458 patients) were matched, with an average age of 53.9 years and 69.4% (318/458) females. A total of 118 (25.8%) patients had PPCs during hospitalization after surgery, including 60 (26.2%) patients in the PEEP 5 cm H2O group and 58 (25.3%) patients in the PEEP 10 cm H2O group, with no statistically significant difference between the two groups [OR=0.997, 95%CI (0.495, 1.926), P=0.915]. Multivariate logistic regression analysis showed that PEEP was not an independent risk factor for PPCs [OR=0.920, 95%CI (0.587, 1.441), P=0.715]. Conclusion For patients undergoing thoracoscopic lung surgery, intraoperative PEEP (5 cm H2O or 10 cm H2O) is not associated with the risk of PPCs during hospitalization after surgery, which needs to be further verified by prospective, large-sample randomized controlled studies.

Predictive value of HACOR score on the clinical outcome of non-invasive positive pressure ventilation in the treatment of chronic obstructive pulmonary disease with pulmonary encephalopathy / 中华危重病急救医学

Objective:To explore the predictive value of HACOR score [heart rate (H), acidosis (A), consciousness (C), oxygenation (O), and respiratory rate (R)] on the clinical outcome of non-invasive positive pressure ventilation in patients with pulmonary encephalopathy due to chronic obstructive pulmonary disease (COPD).Methods:A prospective study was conducted. The patients with COPD combined with pulmonary encephalopathy who were admitted to Henan Provincial People's Hospital from January 1, 2017 to June 1, 2021 and initially received non-invasive positive pressure ventilation were enrolled. Besides non-invasive positive pressure ventilation, standard medical treatments were delivered to these patients according to guidelines. The need for endotracheal intubation was judged as failure of non-invasive ventilation treatment. Early failure was defined as the need for endotracheal intubation within 48 hours of treatment, and late failure was defined as the need for endotracheal intubation 48 hours and later. The HACOR score at different time points after non-invasive ventilation, the length of intensive care unit (ICU) stay, the total length of hospital stay, and the clinical outcome were recorded. The above indexes of patients with non-invasive ventilation were compared between successful and failed groups. The receiver operator characteristic curve (ROC curve) was drawn to evaluate the predictive effect of HACOR score on the failure of non-invasive positive pressure ventilation in the treatment of COPD with pulmonary encephalopathy.Results:A total of 630 patients were evaluated, and 51 patients were enrolled, including 42 males (82.35%) and 9 females (17.65%), with a median age of 70.0 (62.0, 78.0) years old. Among the 51 patients, 36 patients (70.59%) were successfully treated with non-invasive ventilation and discharged from the hospital eventually, and 15 patients (29.41%) failed and switched to invasive ventilation, of which 10 patients (19.61%) were defined early failure, 5 patients (9.80%) were late failure. The length of ICU and the total length of hospital stay of the non-invasive ventilation successful group were significantly longer than those of the non-invasive ventilation failure group [length of ICU stay (days): 13.0 (10.0, 16.0) vs. 5.0 (3.0, 8.0), total length of hospital stay (days): 23.0 (12.0, 28.0) vs. 12.0 (9.0, 15.0), both P < 0.01]. The HACOR score of patients at 1-2 hours in the non-invasive ventilation failure group was significantly higher than that in the successful group [10.47 (6.00, 16.00) vs. 6.00 (3.25, 8.00), P < 0.05]. However, there was no significant difference in HACOR score before non-invasive ventilation and at 3-6 hours between the two groups. The ROC curve showed that the area under the ROC curve (AUC) of 1-2 hour HACOR score after non-invasive ventilation for predicting non-invasive ventilation failure in COPD patients with pulmonary encephalopathy was 0.686, and the 95% confidence interval (95% CI) was 0.504-0.868. When the best cut-off value was 10.50, the sensitivity was 60.03%, the specificity was 86.10%, positive predictive value was 91.23%, and negative predictive value was 47.21%. Conclusions:Non-invasive positive pressure ventilation could prevent 70.59% of COPD patients with pulmonary encephalopathy from intubation. HACOR score was valuable to predict non-invasive positive pressure ventilation failure in pulmonary encephalopathy patients due to COPD.

Systematic evaluation of acute herpes zoster treatment with fire needle therapy mainly / 国际中医中药杂志

Objective:To systematically evaluate the clinical efficacy of fire needle therapy and conventional western medicine in the treatment of patients with acute herpes zoster.Methods:Randomized controlled trials (RCTs) of fire needle therapy in the treatment of acute herpes zoster were retrieved from China National Knowledge Internet (CNKI), Wanfang, Database of Chinese Sci Tech Periodicals (VIP Database), China Biomedical Literature Database (CBM), Medline, Embase, and Cochrane Library from the establishment of the databases to May 30, 2022. According to the inclusion and exclusion criteria, the included literature was screened, and Review Manager 5.3 was used for system evaluation and meta-analysis.Results:7 articles were included for analysis after screening, involving 452 patients. There were 226 cases in the treatment group and 226 cases in the control group. The results of meta-analysis showed that fire needle therapy was superior to conventional western medicine in the total effective rate [ RR=0.36, 95% CI (0.20, 0.65), P=0.000 7], lower incidence of PHN [ RR=0.25, 95% CI (0.09, 0.72), P=0.01], lower VAS score [ MD=-1.19, 95% CI (-2.14, -0.24), P=0.01], and shorter scab forming time [ MD=-2.03, 95% CI (-2.42, -1.64), P<0.001]. Conclusion:The curative effect of fire needle therapy is more prominent than that of conventional western medicine in the treatment of acute herpes zoster.

Cytotoxicity and mechanical properties of the prosthetic liner / 中国康复理论与实践

@# Objective To investigate the current status of cytotoxicity and mechanical properties of the prosthetic liner on the market in China.Methods Six kinds of liner were collected, namely domestic 6 mm thick foam liner (A), domestic 5 mm thick EVA foam liner (B), German 5 mm thick EVA foam liner (C), Germany 12 mm thick PE foam liner (D), Iceland 3 mm thick silicone liner (E) and Germany 4 mm thick gel liner (F). Microscopic observation and thiazole blue colorimetry were used to detect the cytotoxicity. The content of small organic molecules was determined by the consumption of potassium permanganate. The tensile strength, elongation at break (%), and 100% tensile strength of the prosthetic liner were tested by material mechanics testing machine. The hardness was tested using the Shore hardness tester oo type.Results The cytotoxicity was grade 2 for prosthetic liners A, B, C and D, and was grade 0 for E and F. The redox substance content of prosthetic liners A、B、C exceeded 150 mg/kg. Except the prosthetic liner C, the hardness of the other products were all ≤ 70 HA. Except prosthetic liner D, the tensile strengths were > 1 MPa, breaking elongations were > 120.0%, 100% tensile strengths were > 0.9 MPa for other products.Conclusion Due to materials and production processes, the cytotoxicity and mechanical properties of the six samples are quite different.

Effects of plant growth-promoting rhizobacteria Klebsiella michiganensis TS8 and Lelliottia jeotgali MR2 on the growth and cadmium uptake of Arabidopsis thaliana under cadmium stress / 生物工程学报

In this study, the effects of two plant growth-promoting bacteria Klebsiella michiganensis TS8 and Lelliottia Jeotgali MR2 on the growth and cadmium (Cd) uptake of Arabidopsis thaliana under Cd stress were explored. A wild-type Arabidopsis thaliana was selected as the experimental plant and was planted at different Cd concentrations. MR2 and TS8 bacterial suspensions were sprayed onto the rhizospheric soil during the planting process. The initial Cd concentration of the bought soil was 14.17 mg/kg, which was used as the pot soil of the low-concentration Cd treatment group (LC). The concentration of soil Cd at high-concentration Cd treatment group (HC) were 200 mg/kg higher than that at LC group. Compared with the control group, MR2 suspension significantly promoted the growth of A. thaliana at both low and high concentrations, while TS8 strain and MR2_TS8 mixture only exhibited growth-promoting effect at high concentration. However, it was noteworthy that, TS8 suspension significantly reduced the Cd content in the underground parts of A. thaliana (60% and 59%), and significantly improved the Cd content in the aboveground parts of A. thaliana (234% and 35%) at both low and high concentrations. In addition, at low concentration, both single strain and mixed strains significantly improved the transformation from reducible Cd to acid-extractable Cd in soil, promoted Cd intake, and thereby reduced the total Cd content in soil. Therefore, the rational application of plant growth-promoting bacteria may improve crop yield and remediate Cd contamination in soil.

Practice and thinking of pre-hospital emergency support for the 2022 Beijing Winter Olympic Games / 中华医院管理杂志

Under the leadership of the Beijing Winter Olympic Organizing Committee and the Beijing Municipal Health Commission, the Beijing Emergency Center, as the designated medical institution for the 2022 Beijing Winter Olympic Games, has completed the first aid support task of this Winter Olympic Games with other medical institutions. The author systematically analyzed the development of each link in the pre-hospital emergency support for the 2022 Beijing Winter Olympic Games, summarizes the key links of the entire Winter Olympics cycle, such as the construction of the organizational system, the formulation of support plans, and the training of support personnel, and analyzed the results of related work, so as to provide reference for the pre-hospital emergency support for China to host large-scale international events in the future.

Development and reliability and validation of a quality of patient-reported ICU transitional care scale / 中国实用护理杂志

Objective:To develop a quality assessment scale of ICU transitional care based on patient-reported outcomes and test its performance.Methods:According to the guidelines of patient-reported outcomes development process, the item pool was established combining with analysis of relevant literatures and patients′ experience and needs in ICU transitional period based on the grounded theory about ICU transitional care. Cognitive test of patients and Delphi expert correspondence were utilized to amend the initial scale before pretest. One hundred and seventy-seven patients who had been transferred from ICU to general ward from March to August 2019 in Tianjin Third Central Hospital were recruited by convenience sampling method for project analysis.Results:The active coefficient and authority degree of expert were above 0.90 and 0.785 respectively for the two rounds of expert enquiry. The final scale consisted of 28 items, from which 4 principal factors, which were preparation for self-care, communication and coordination, psychological support and health belief, respectively, were extracted by exploratory factor analysis, explaining 78.307% of total variance. The content validity index of each item was 0.769-1.000, and the scale-level content validity was 0.896. The Cronbach α coefficients of the 4 factors and the scale were 0.844, 0.793, 0.897, 0.681 and 0.807, respectively.Conclusions:The patient-reported outcomes scale measuring ICU transitional care quality has good reliability and validity and can be used as an auxiliary tool measuring ICU transitional care quality in clinic.

Study on the development of the standardized system of pre-hospital rescue and transfer / 中华医院管理杂志

Pre-hospital rescue is key to the emergency medical system. Based on the current pre-hospital emergency standardized system construction in China, the authors explored the standardization of pre-hospital emergency system construction, command dispatch and emergency service quality control standardization, pre-hospital classification standardization, pre-hospital emergency service capacity standardization, pre-hospital emergency and intra-hospital emergency connection standardization, standardized training for pre-hospital emergency doctors and nurses. These efforts aim to achieve such rescue and transfer criteria for patients, as " vicinity, urgency, professional needs, and intension of both patients and their families" . Such criteria if met can further reduce emergency response time and shorten the emergency radius, hence improving emergency medical services.

Asymptomatic novel coronavirus pneumonia presenting as acute cerebral infarction:case report and review of the literature / 中华急诊医学杂志

An outbreak of novel coronavirus pneumonia that began in Wuhan, China, has spread rapidly in December 2019, with cases now confirmed in multiple countries. As the number of cases increases, we pay more and more attention to asymptomatic novel coronavirus pneumonia,We report the first case of Asymptomatic novel coronavirus pneumonia presenting as acute cerebral infarction and describe the identification, diagnosis, clinical course, and emergency treatment, including. This case highlights the the importance of emergency medical teams in initial assessment of emergency public health emergencies, as well as the necessary of the emergency chest CT for screening asymptomatic novel coronavirus pneumonia.

Effects of sensory integration therapy on cognitive function and self-care ability in patients with mild cognitive impairment after stroke / 中国实用护理杂志

Objective:To investigate the changes of cognitive function and self-care ability in patients with mild cognitive impairment after stroke after sensory integration therapy.Methods:One hundred patients with mild cognitive impairment after stroke were divided into control group and intervention group according to the random number table method. The control group was given the routine health education path and rehabilitation training, and the intervention group was given the cognitive rehabilitation through sensory integration therapy on the basis of the control group. The cognitive function and self-care ability of the patients were evaluated by the Montreal cognitive assessment(MoCA) and daily self-care ability scale(ADL) before and after intervention.Results:After intervention, the total MoCA score, visual space, nominalization, language, abstraction and memory scores of the intervention group were 26.02±1.15, 3.50±0.76, 2.98±0.14, 2.90±0.30, 2.84±0.37 and 3.18±0.69, respectively, while those of the control group were 23.32±1.90, 2.86±1.20, 2.78±0.42, 2.82±0.39, 1.58±0.54 and 2.82±0.94, respectively. The difference between the two groups was statistically significant ( t value was -18.296--2.064, all P<0.05). The scores of attention and directional force in the intervention group were 5.44±0.67 and 5.18±0.85, respectively, while those in the control group were 5.32±0.84 and 5.14±0.78, respectively. There was no statistically significant difference between the two groups ( t value was -1.288, -0.704, P>0.05).After intervention, the total ADL score, stool, urine, toilet, eating, dressing and bathing scores of the intervention group were 65.00±5.98, 5.90±2.19, 6.40±2.27, 7.40±2.72, 7.80±2.70, 7.50±2.53 and 5.50±1.52, respectively, The control group was 53.60±10.20, 3.50±3.23, 5.00±3.50, 5.50±3.23, 5.40±3.76, 5.90±3.45, and 4.40±2.79, respectively. The difference between the two groups was statistically significant ( t value was -7.573~-2.615, all P<0.05). Conclusions:Sensory integration therapy can improve the cognitive function and self-care ability of patients with mild cognitive impairment after stroke.

Research progress on the relationship between inflammation and neuropathic pain / 中国医师杂志

Neuropathic pain (NP) is pain triggered or caused by primary damage and dysfunction of the nervous system.It belongs to a kind of chronic pain,which is manifested as spontaneous pain,hyperalgesia,abnormal pain,paresthesia and other clinical characteristics.Because the pathogenesis is not clear,the therapeutic effect is not satisfactory.After nerve injury,the glial cells in the injured site and dorsal root ganglia (DRG) release various inflammatory mediators to participate in the regulation of the transmission of damaging information.The inflammatory process of neuropathic pain may be accomplished through some signaling pathways.This article reviews the current research on the relationship between inflammation and neuropathic pain.

Biogenic gas vesicles labeled bone marrow mesenchymal stem cells: from synthesis to ultrasound imaging and tracking / 中华核医学与分子影像杂志

Objective:To fabricate biogenic gas vesicles (GVs)- polyethyleneimine (PEI)-marrow mesenchymal stem cells (BMSCs) and evaluate its potential on stem cell tracking with ultrasound imaging.Methods:GVs were cationized by PEI to fabricate GVs-PEI. The diameter and zeta potential of GVs-PEI were determined. GVs-PEI were co-incubated with BMSCs to obtain GVs-PEI-BMSCs and stem cell uptake was observed by fluorescence microscope. The cell viability of GVs-PEI-BMSCs was verified by cell counting kit-8 (CCK-8) assay were set. Ultrasound imaging was performed on 0, 2, 4 and 6 d in agarose phantom to evaluate ultrasound imaging capability of GVs-PEI-BMSCs group and BMSCs group in vitro. GVs-PEI-BMSCs and BMSCs were injected into quadriceps femoris of SD rats, and ultrasound imaging was performed on 0, 2, 4 and 6 d to evaluate the ultrasound imaging capability in vivo. One-way analysis of variance and independent-sample t test were used to analyze the data. Results:The diameter and zeta potential of GVs-PEI were (383.63±11.55) nm and (18.48±2.20) mV. Plenty of GVs-PEI were observed in GVs-PEI-BMSCs through microscope. When BMSCs were incubated with GVs-PEI in absorbance ( A) 500 nm of 0.5 and 1.0, there were no significant changes in the cell viability of GVs-PEI-BMSCs at 24, 48 and 72 h ( F values: 7.078-11.982, all P>0.05). Compared with BMSCs, GVs-PEI-BMSCs showed better ultrasound imaging capability in vitro in all time points with still significantly different signal at 6 d (634.29±10.78 vs 2 864.51±100.86; t=-121.86, P<0.001). The ultrasound imaging capability of GVs-PEI-BMSCs in vivo was much better than that of BMSCs at each time point with still significantly different signal at 6 d (2 108.02±217.96 vs 267.71±7.87; t=-121.39, P<0.001). Conclusion:GVs-PEI-BMSCs are successfully fabricated with the advantages of significant ultrasound imaging capability, long duration and safety, which provide a brand-new means for stem cells tracking in vivo.

Comparative Study on the Salt-processed Excipients for Aconite Based on “Efficacy Enhancing and Toxicity Re- ducing” / 中国药房

OBJECTIVE：To compare the c ontents of 6 kinds of ester alkaloids in raw aconite and 5 kinds of salt-processed products，and to provide reference for the optimization of salt-processing technology. METHODS ：Processed with bittern ， magnesium chloride ，sodium chloride ，calcium chloride and potassium chloride as excipients ，and HPLC method were adopted to determine the contents of 6 kinds of ester alkaloids in raw aconite and 5 kinds of salt-processed products. The effect/toxicity ratio and toxicity component index were used to evaluate the effect and toxicity of raw aconite and 5 kinds of salt-processed products. RESULTS： The linear range of benzoylneoaconitine ， benzoylhypoconitine， benzoylaconitine， neoaconitine， aconitine and hypoconitine were 2.440-24.40，2.240-22.40，2.020-20.20，2.780-27.80，2.240-22.40，2.240-22.40 μg/mL（r≥0.999 0）. RSDs of precision，stability and repeatability tests were all less than 2％. The recovery rates were 102.13％-104.87％（RSD＝0.98％，n＝ 6），100.00％-105.00％（RSD＝2.02％，n＝6），95.00％-99.29％（RSD＝1.77％，n＝6），100.41％-104.58％（RSD＝1.78％，n＝ 6），98.87％-99.90％（RSD＝0.41％，n＝6），100.20％-104.00％（RSD＝1.55，n＝6），respectively. The contents of total alkaloids in order from the largest to the smallest was as follows ：raw aconite ＞processed products of sodium chloride ＞processed products of bittern ＞processed products of potassium chloride ＞processed products of calcium chloride ＞processed products of magnesium chloride. The order of effect/toxicity ratio was processed products of potassium chloride ＞processed products of magnesium chloride＞processed products of sodium chloride ＞processed products of calcium chloride ＞processed products of bittern ＞raw aconite. The order of toxicity component index was raw aconite ＞processed products of sodium chloride ＞processed products of bittern＞processed products of calcium chloride ＞processed products of potassium chloride ＞processed products of magnesium chloride. CONCLUSIONS ：Using 5 kinds of salt as excipients ，the proce ssing technology has different degrees of “efficacy enhancing and toxicity reducing ”effect. Among them ，magne- sium chloride ，potassium chloride and calcium chloride are better for processing and can be used for processing aconite.

Predictive value of the red blood cell distribution width-to-platelet ratio for hepatic fibrosis.

AIMS: The red blood cell distribution width-to-platelet ratio (RPR) has been reported to be an indicator of hepatic fibrosis in patients with chronic hepatitis B (HBV), nonalcoholic fatty liver disease (NAFLD) or chronic hepatitis C (HCV). However, no research has explored the RPR in all patients with hepatic fibrosis. There is a recognized need to establish whether the RPR could assess hepatic fibrosis and reflect the severity of fibrosis, regardless of the patient's etiology. METHODS: Quantitative data from 1282 patients who underwent liver biopsy between January 2010 and December 2014 at the Second Affiliated Hospital of Zhejiang University School of Medicine were included. The etiologies included HBV or HCV infection, NAFLD, schistosomiasis, granulomatous liver disease, and vascular abnormalities. Five noninvasive models were calculated for all patients based on laboratory parameters. The degrees of fibrosis severity were evaluated based on the Metavir scoring scale. RESULTS: The RPR demonstrated the best accuracy of predicting hepatic fibrosis among the selected five models (0.75, p < .001) regardless of etiology. In addition, the RPR values increased with advanced hepatic fibrosis progression. Furthermore, combining the RPR with the white blood cell (WBC) count improved the accuracy of grading hepatic fibrosis as reflected by the likelihood ratio (LR + 9.03, LR - 0.49). CONCLUSION: The RPR is a useful indicator for hepatic fibrosis, regardless of etiology, and can reflect the severity of fibrosis. This study supports further clinical development of the RPR both in a stepwise manner or in combination with inflammatory parameters to improve the accuracy of scoring hepatic fibrosis.

MRIfindingsofreversiblespleniallesionsyndromeinadult / 实用放射学杂志

Objective TosummarizeMRIfeaturesofadultreversiblespleniallesionsyndrome(RESLES)andevaluateitsdiagnosticvalue. Methods ClinicalandMRIdataof15patientswithRESLESwereanalyzedretrospectively.Primarydiseasesandcausesincluded:encephalitis disease,cerebrovasculardiseases,metabolicandelectrolytedisorders.Theclinicalsymptomswereheadache,dizziness,changeofconsciousness, epilepticseizuresandothernonspecificneurologicsymptoms.Thecranialimagingexaminationwasperformedat3.0T/1.5TsuperconductingMR, includingT1WI,T2WI,T2FLAIRandDWI,inwhich7casesunderwentMRIenhancedscanand5casesunderwentMRAexamination.Results Among15patients,MRIfindingsofallpatientswerecharacterizedbythecharacteristic"boomerangsign"ortheovoidabnormalitysignalinthe corporiscallosisplenium,whichwaspresentedascytotoxicedema.Besides,4ofthem werecombinedwithposteriorreversibleencephalopathy syndrome(PRES),whichwascharacterizedbyvasogenicedemainthebilateraloccipital,temporal,parietallobeandcerebellarhemisphere.The clinicalsymptomsofallpatientsimprovedafterreasonabletreatment.Conclusion MRIcharacteristicfindingofadultreversiblesple-niallesionsyndromeisthecytotoxicedemaofthecorpuscallosum,whichcanbeshowedas"boomerangsign"orovalform.Imagingfindingsand clinicalsymptomsarereversible.Thecorrectunderstandingofthisdiseaseisofgreatsignificancetoclinicalrationaldiagnosisandtreatment.

Design and construction of an intelligent pre-hospital emergency synergy system / 中华医院管理杂志

As a key part of the emergency medical system,pre-hospital emergency service proves critical for critical care,higher pre-hospital care success rate,improvement of patient outcome,and promotion of health recovery.This paper analyzed the status quo of pre-hospital emergency services information,discussed the application of information technology in pre-hospital industries including command and dispatch system,ambulance real-time positioning and tracking system,pre-hospital emergency video surveillance system,medical record system,electronic patient health file system,electronic payment system,and data mining and analysis system.Furthermore,it also discussed the prospect of sizably upgrading prehospital emergency service and building intelligent pre-hospital emergency coordination system.

Design and construction of an intelligent pre-hospital emergency synergy system / 中华医院管理杂志

As a key part of the emergency medical system, pre-hospital emergency service proves critical for critical care, higher pre-hospital care success rate, improvement of patient outcome, and promotion of health recovery. This paper analyzed the status quo of pre-hospital emergency services information, discussed the application of information technology in pre-hospital industries including command and dispatch system, ambulance real-time positioning and tracking system, pre-hospital emergency video surveillance system, medical record system, electronic patient health file system, electronic payment system, and data mining and analysis system.Furthermore, it also discussed the prospect of sizably upgrading pre-hospital emergency service and building intelligent pre-hospital emergency coordination system.

Expression of leptin receptor in gliomas and the effect of exogenous leptin on human glioma U251 cell line / 中华行为医学与脑科学杂志

Objective To clarify the expression of leptin and leptin receptor in normal brain tissues and gliomas and investigate the effect of exogenous leptin on the proliferation,migration and invasion of human glioma U251 cell line.Methods Immunohistochemical staining was used to detect the expression of leptin and leptin receptor in 50 cases of different grades of glioma tissues and 20 cases of normal brain tissues.The effects of exogenous leptin on proliferation,migration and invasion of U251 cells were detected by MTT assay,cell scratch assay and Transwell invasion assay.Results (1) The positive expression rates of leptin and leptin receptors in glioma tissues were 50.0％ and 92.0％,respectively.(2)Proliferation activity:leptin concentrations of 0 ng/ml,10 ng/ml,and 50 ng/ml had no significant difference in the proliferation of U251 cells (absorbance:0.263±0.015,0.273±0.017 and 0.277±0.006,respectively),and the leptin concentration of 100 ng/ml had a significant effect on the proliferation of U251 cells (absorbance:0.315±0.005,P＜0.05).(3)Migration ability:the migration rate of U251 cells treated with different concentrations of leptin increased significantly with the passage of time,and the migration rate was most significant at the concentration of 100 ng/ml ((93.313±3.080) ％),and the difference was statistically significant (P＜0.05).(4)Invasive ability:with the increase of leptin concentration and the prolongation of the action time,the invasive ability of U251 cells was enhanced.When leptin was used at a concentration of 100 ng/ml,the number of penetrating cells were the biggest(135±2).Conclusion Leptin and leptin receptors are involved in the occurrence of gliomas;and exogenous leptin promotes the proliferation of U251 cells and has time and dose dependability on the migration and invasion of U251 cells.

Double CEUS findings and PTCD strategy in intraductal papillary neoplasm of bile ducts / 中国医师杂志

Objective To summarize and analyze the contrast-enhanced ultrasonographic findings of intraductal papilloma and to explore the clinical value and percutaneous transhepatic cholangial drainage (PTCD) strategy of contrast-enhanced ultrasonography in the diagnosis of intraductal papilloma.Methods We retrospectively analyzed 32 cases with intraductal papilloma confirmed by surgery,conventional ultrasound,transvascular contrast-enhanced ultrasound,intrahepatic contrast echocardiography to gather the diagnostic coincidence rate of conventional ultrasound and contrast-enhanced ultrasound in bile duct papilloma,thus making a summary of PTCD experience of intraductal papilloma.Results The diagnostic accuracy of conventional ultrasound and contrast-enhanced ultrasound in the diagnosis of intraductal papilloma were 43.8％ (14/32) and 93.8％ (30/32) respectively,and the differences were statistically significant (P =0.037).Conclusions Conventional ultrasound combined with double contrast ultrasound and cholangiography can improve the diagnostic accuracy of intraductal papilloma.Ultrasound-guided PTCD is a real-time,convenient procedure.Choosing a biliary drainage tube as thick as possible and repeatedly doubling the tube can maintain bile drainage and smooth flow,thus can effectively improve the efficacy of serum bilirubin reduction and protect liver function.