Study on the establishment and management of GLP in chemical toxicity identification in occupational health institutes / 中国职业医学

@#Abstract: The demand for reliable toxicological data of chemicals runs through every link of occupational health work. The prevention of occupational diseases involves high requirements for the standardization of chemical toxicity assessment in occupational health institutions. Good laboratory practice (GLP) emphasizes the integrity of the test process to trace and supervise the whole process of the test, which is conducive to the standardization of chemical toxicity identification. Therefore, the standardized construction of GLP laboratories is an important starting point for occupational health institutions to carry out chemical toxicity identification. In the construction and management process of GLP laboratories for chemical toxicity identification, occupational health institutions need to build a sound organization and operation system, carry out systematic training and assessment of personnel, establish standard operating norms and emphasize their importance, strengthen the management of facility environment and laboratory, pay attention to quality control and process supervision, and constantly improve their own ability level. To actively adapt to social development and market demand, to provide strong support for occupational health work.

Children's pneumonia diagnosis system based on Mach-Zehnder optical fiber sensing technology / 国际生物医学工程杂志

Objective:To explore a fast and accurate method to diagnose children's pneumonia according to respiratory signals, so as to avoid the cancer induction caused by traditional X-ray examination.Methods:A Mach Zehnder optical fiber sensor was used to build a respiratory signals(RSPs) detection system, and the RSPs of the monitored children were extracted according to the vibration signal generated by the children's lung rales. Preprocessing methods such as the discrete cosine transform(DCT) were used to compress and denoise the RSPs. Multi-feature extraction of RSPs was conducted through signal processing methods such as the Hilbert transform and autoregressive (AR) model spectrum estimation. A support vector machine (SVM) classification model was constructed to classify the collected RSPs.Results:The accuracy rate of the proposed RSP classification of children with or without pneumonia was 94.41%, which was higher than the previous methods.Conclusions:The children's pneumonia diagnosis system based on an optical fiber sensor has a higher detection accuracy, and is expected to be widely used in clinical practice.

Effect of MANF on proliferation, migration, invasion and apoptosis of colorectal cancer Caco-2 cells / 中国药理学通报

Aim To construct colorectal cancer Caco-2 cell line with overexpression of mesencephalic astrocyte-derived neurotrophic factor (MANF) and to investigate the effects of MANF on the proliferation, migration, invasion and apoptosis of human colorectal cancer Caco-2 cells. Methods Caco-2 cells were transfected with MANF-GFP plasmid and GFP empty vector plas-midrespectively. Real time polymerase chain reaction (RT-PCR) and Westernblot (WB) were used to detect the the expression level of MANF. Transwell was used to detect the effect of MANF on the migration and invasion ability of Caco-2 cells. CCK8 was used to dectet the influence of MANF on the proliferation of Caco-2 cells. WB and flow cytometrywere used to detect the activation ofcaspase-3andthe apoptosis rateof Caco-2 cells. Luciferase experiment was used to verify the effect of MANF on NF-κB pathway. Results MANF-GFP plasmid was successfully expressed in Caco-2 cells. The migration and invasion ability of Caco-2 cells were effectively reduced (P <0. 01), and the a-bility of the cell proliferation was downregulated (P < 0.01) in the MANF overexpression group; the expression of cleaved caspase-3 protein and apoptosis of Caco-2 cells were upregulated; compared with the control group, the transfection of MANF plasmid significantly reduced the transcription activity of NF-κB (P < 0. 01). Conclusions MANF can inhibit proliferation, migration, invasion of Caco-2 cells, while promote its apoptosis by negatively regulating NF-κB signal pathway.

A Rapid Health Technology Assessment of Rosuvastatin Applicated in Patients with Dyslipidemia / 中国药房

OBJECTIVE：To rapidly evaluate the effectiveness，safety and economics of rosuvastatin （RSV）in the treatment of dyslipidemia，so as to provide evidence-based support for clinical drug use. METHODS ：Retrieved from PubMed ，Embase， Cochrane Library ，CNKI，Wanfang database and CBM ，etc.，health technology assessment （HTA）related website and database were searched systematically to select HTA report ，Meta-analysis/systemic evaluation and pharmacoeconomics study about RSV versus placebo or other positive drugs in the treatment of dyslipidemia. According to the inclusion and exclusion criteria ，two researchers independently screened the literatures ，extracted and summarized the data ，then performed qualitative description of results. RESULTS ：Totally 11 Meta-analysis and 11 pharmacoeconomic studies were included ，and no relevant HTA report was retrieved. Results of the study showed that compared with the control group ，RSV could regulate dyslipidemia ，and reduce the levels of LDL-C ，TG，TC，C-reactive protein and sdLDL ；RSV could also reverse atherosclerotic plaque ，reduce all-cause mortality with good safety. In terms of economy ，compared with other statins or placebo ，RSV could prolong quality-adjusted life year，its incremental cost-effectiveness ratio is lower than the desired payment threshold ，which had more economic advantages. CONCLUSIONS：RSV is effective ，safe and economical in the treatment of hyperlipidemia.

Safety of ertugliflozin as a monotherapy for the treatment of type diabetes: a meta-analysis / 中国药学杂志

OBJECTIVE: To systematically evaluate the safety of ertugliflozin as a monotherapy for the treatment of type Ⅱ diabetes. METHODS: The randomized controlled trials(RCTs) of ertugliflozin for type Ⅱ diabetes were searched in the clinical trial registries and the related databases, such as CNKI, WANFANG, The Cochrane Library, Embase and Clinical Trials. The literatures were screened according to inclusion and exclusion criterias.After the data extraction and assessing the quality of included studies with Cochrane Handbook 5.3.3, Meta-analysis was conducted with RevMan5.3 software and the sensitivity of outcomes were analyzed by the Stata14.0. RESULTS: The six individual randomized controlled trials were eligible. The 4 078 patients were enrolled. There are some results of Meta-analysis. At 26 weeks, compared to the control subjects, the risk of genital mycotic infection(GMI) in ertugliflozin group was higher(RR=6.25, 95%CI: 2.98-6.61, P30% in eGFR were no significant difference. There were no significant difference between 5 and 15 mg group on the safety indicators at 52 weeks. CONCLUSION: Ertugliflozin could cause GMI regularly. And the risk of female patients with GMI was higher than male. Meanwhile, it was easy to reduce eGFR, but most of them were reversible.Ertugliflozin was safe in urinary tract infection, symptomatic hypoglycaemia and hypovolaemia. However, there is no obvious difference in the safety of different dosage groups.

Multiparametric Functional Magnetic Resonance Imaging for Evaluating Renal Allograft Injury

Kidney transplantation is the treatment of choice for patients with end-stage renal disease, as it extends survival and increases quality of life in these patients. However, chronic allograft injury continues to be a major problem, and leads to eventual graft loss. Early detection of allograft injury is essential for guiding appropriate intervention to delay or prevent irreversible damage. Several advanced MRI techniques can offer some important information regarding functional changes such as perfusion, diffusion, structural complexity, as well as oxygenation and fibrosis. This review highlights the potential of multiparametric MRI for noninvasive and comprehensive assessment of renal allograft injury.

Investigation and Analysis on the Shortage of Emergency Medicines in 76 Medical Institutions from 22 Provinces and Cities in China / 中国药师

Objective: To investigate the shortage of emergency medicines in emergency department of 76 medical institutions in China, and find out the reasons and the measurements. Methods: The shortage of emergency medicines in 76 class-Ⅰ, class-Ⅱ and class-Ⅲmedical institutions from 22 provinces, autonomous regions and municipalities across the country was investigated by question-naires, and the data obtained from the survey were collected and analyzed by Excel 2007. Results: Totally 76 questionnaires were sent out, and all of them were recycled with the effective recovery of 100% . Pralidoxime chloride injection ranked the first in 59 investiga-ted medicines with the shortage rate of 63. 16% , which was at the top spot in the list of the different medical institutions as well. The main reasons of drug shortage were as follows: less clinical requirements, lost-bid in centralized bidding and price inversion. Conclu-sion: It is suggested that the relevant management departments should establish a reasonable pricing mechanism and carry out policy guarantee for the urgent need of emergency medicines with low dosage and low price.

A systemic review on efficacy and safety of multi-oil fat emulsion injection in premature infant parenteral nutrition support based on the meta-analysis / 中华临床营养杂志

Objective To systemically analyze the efficacy and safety of multi-oil fat emulsion injection (SMOF) in the premature infant parenteral nutrition support.Methods Databases including EMbase,PubMed,Cochrane Library,CNKI,VIP and Wanfang,were searched from libraries establishment to November 2017 for randomized controlled trials (RCTs) focusing on the efficacy and safety of SMOF in the premature infant parenteral nutrition support.All the literatures were retrieved and screened according to inclusion and exclusion criteria by two researchers.The software RevMan 5.3 was used for meta-analysis after the evaluation of methodology of quality.Results A total of 7 articles including 7 RCTs were enrolled.Meta-analysis showed that there were no significant differences in body length (OR=-0.25,95％ CI=-1.80-1.30,P=0.75),weight (OR=-0.12,95％ CI=-0.20-0.04,P=0.14),head circumference (OR=0.07,95％ CI=-0.83-0.96,P=0.88),lowdensity lipoprotein,high-density lipoprotein,direct bilirubin,serum creatinine (OR=-0.16,95％ CI=-0.59-0.26,P=0.45) between the infants receiving SMOF or Intralipid.But compared with the infants receiving Intralipid,hemoglobin (OR=-0.75,95％ CI=-1.49-0.00,P=0.05),red blood cells (OR=-0.23,95％ CI=-0.45-0.00,P=0.05) decreased in the infants receiving SMOF,and white blood cells (OR=1.91,95％ CI=0.46-3.37,P =0.01) increased.Conclusions SMOF can control the hemoglobin content in serum,reduce the risk and degree of jaundice in premature infant,with better safety.

Metabolic Characteristics of Leucocyte-deplated and Suspended RBC Produced by Using Lipid Whole Blood During Routine Storage / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the differences of metabolic pathways of leucocyte-deplated RBCs prepared by using lipid whole blood and nomal blood during routine storage so as to provide some reference for clinical blood use.</p><p><b>METHODS</b>Twenty U whole blood from 20 donors, including 10 U lipid blood and 10 U normal whole blood, were selected for preparing leukodepleted red blood cells, red blood cells were taken from storage bags on day 0, 14 and 35, respectively. Metabolites in the red blood cells were analyzed, red blood cell metabolic extracts were detected by UPLC-MS/MS. The metabolite data of RBC from 2 groups were analyzed by SIMCA-P 13.0 software using OPLS-DA and by SPSS 19.0 using Mann-Whitney U test. Difference of metabolic pathways was described according to different metabolites.</p><p><b>RESULTS</b>The glucose, adenine, pyruvic acid, GSH, GSSG and niacinamide levels on day 0 in lipid RBCs were higher than those in the control group(P<0.05). The glucose, pyruvic acid and GSH levels on day 14 in lipid RBCs were lower than those in the control group (P<0.05), and the levels of adenine, GSSG and niacinamide were higher than that in the control group (P<0.05). The glucose level on day 0 was lower than that in the control group (P<0.05), and the levels of adenine and niacinamide were higher than those in the control group (P<0.05). but the pyruvic acid, GSH and GSSG levels were not significantly different between 2 groups (P>0.05).</p><p><b>CONCLUSION</b>Compared with the normal red blood cells, the energy metabolism pathway decreases in lipid red blood cells within the storage period and pentose phosphate pathway increases.</p>

Spectrum-activity relationship of trichosanthis fructus and trichosanthis fructus strip pieces for rat myocardial ischemia-reperfusion injury / 中国中药杂志

To investigate the spectrum-activity relationship of Trichosanthis Fructus and Trichosanthis Fructus strip pieces for rat myocardial ischemia-reperfusion injury. HPLC fingerprints of Trichosanthis Fructus and Trichosanthis Fructus strip pieces were established, and the values of creatinekinase-MB (CK-MB), myoglobin (MYO) and cardiac troponin-T (cTNT) in 3 dose groups (2.25, 13.5, 27.0 g·kg⁻¹, equivalent to the crude herb g·kg⁻¹) of Trichosanthis Fructus and Trichosanthis Fructus strip pieces with myocardial ischemia-reperfusion injury in rats were measured, and the grey relational analysis was used to study the spectrum-activity relationship of Trichosanthis Fructus and Trichosanthis Fructus strip pieces for rat myocardial ischemia-reperfusion injury. With the dosage increase from 2.25 g·kg⁻¹ to 27.0 g·kg⁻¹, the correlation degree of spectrum-activity relationship of Trichosanthis Fructus and Trichosanthis Fructus strip pieces was also enhanced, but the change trend was different between these two groups. According to the frequency of the top 10 peaks in the correlation degree, peak 17, 14, 16, 19, 32, 12, 26, 30, 4, 6 and 2 were the basic effective substances group of Trichosanthis Fructus, peak 6,14,12,32,30,4 and 6 were the basic effective substances group of Trichosanthis Fructus strip pieces. Peak 6, 14, 12, 32, 30, 4 and 26 in fingerprints of Trichosanthis Fructus and Trichosanthis Fructus strip pieces were the main common pharmacodynamic substance base, among them, peak 6 was 5-hydroxymethyl furfural, peak 14 was vanillic acid and the peak 28 was rutin, but the correlation degree with the efficacy was different. The effect of Trichosanthis Fructus and Trichosanthis Fructus strip pieces on rat myocardial ischemia-reperfusion injury was due to the synergistic effect of the effective substance groups related to the dosage. The essential pharmacodynamic substance groups of Trichosanthis Fructus and Trichosanthis Fructus strip pieces were different, but they shared a common active ingredient group.

Immunoserology and RHD Genotype Analysis of DVI Type 3 Genotype Pregnant Women with Anti-D / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To performe the immuneserological and RHD Genotype analyses for DVI type 3 genotype pregnemt women with anti-D.</p><p><b>METHODS</b>RhD blood type of this pregnant women was identified by common serological methods, then the blood group specific antibodies was screened and identified; the polymerase chain reaction-sequence specific primer(PCR-SSP) was used to identify the pregnant women's RHD genotype; RhD blood group for the pregnant women, her spouse and daughter was genogrouped and genetically analyzed by multiplex ligation-dependent probe amplification(MLPA). The heredity of this family was analyzed finally.</p><p><b>RESULTS</b>The titer of IgG anti-D in the pregnant woman serum was 1:8; the PCR-SSP showed that the 3rd to 6th exons of RHD gene were missing in the pregnant woman. the genotype of pregnant woman was identified as DVI type 3; the MLPA analysis showed that this pregnant women owned only one RHD allele with 3rd to 6th exons missed, and her genotype was identified as CDe/cde; her spouse was identified as CDe/CDe homozygous genotype, and her daughter as CDe/CDe.</p><p><b>CONCLUSION</b>Accurate identification of RhD blood type is of great significance for a safe and effective clinical blood transfusion strategy, and for taking appropriate measures to prevent hemolytic disease of newborn (HDN) at women childbearing age.</p>

Relationship between dyadic coping and intimacy in gynecological cancer patients and partners / 中国心理卫生杂志

Objective:To investigate the dyadic coping and intimacy in gynecological cancer patients and their partners,and to explore the association between the two aspects.Methods:A total of 180 postoperative couples with gynecological cancer from 4 tertiary hospitals were investigated with Dyadic Coping Inventory (DCI) and Short Marital Adjustment (MAT).The relationship between couples,dyadic coping and intimacy were analyzed with the Actor-Partner Interdependence Model (APIM).Results:APIM result showed that in the actor effect patients' and spouses'supportive dyadic coping,delegated dyadic coping and common dyadic coping were positive associated with their own intimacy (B =1.77-4.41),patients'and spouses'negative dyadic coping were both adversely associated with their own intimacy (B =-2.81,-2.66).The partner effect showed that patients' supportive dyadic coping and delegated dyadic coping were both positive associated with spouses'intimacy (B =1.00,4.07),spouses'delegated dyadic coping and common dyadic coping were both positive associated with patients' intimacy (B =2.67,2.60),patients' and spouses'negative dyadic coping were negatively associated with partner'intimacy (B =-1.67,-1.40).Conclusion:It suggests that the dyadic coping may be associated with both patients'and partners' intimacy.

Based on infrared spectrum to study the changes in the intrinsic chemicalcomponents in Trichosanthes before and after steaming / 国际药学研究杂志

Objective To analyze the change in infrared(IR)spectral information and to screen out the classification of major compounds affecting information difference in IR spectra of Trichosanthes before and after steaming. Methods The similarity between the original IR fingerprint and the first derivative IR fingerprint of Trichosanthes and their steamed products was calculated by using the Computer Aided Similarity Evaluation System. The principal component analysis(PCA)model and the partial least squares dis-criminant analysis(PLS-DA)model of IR spectral data of Trichosanthes before and after steaming were established by using SIMCA-P 11 statistical software for PCA and PLS-DA,and the classification of major compounds affecting information difference in IR spectra of Trichosanthes before and after steaming was selected by 3D scatter plot,load 3D scatter plot and variable important in project(VIP) value. Results The similarity between the original IR fingerprint and first derivative IR fingerprint of Trichosanthes and their steamed products were 0.9165 and 0.2832. Seven VIP>1 spectral peaks were screened out by using SIMCA-P 11 statistical software,of which,the absorption peak of 1456 cm-1 was νc=c,the absorption peak of 1726 cm-1 was νc=o and the VIP values were 1.6290 and 1.4256 respectively. Conclusion The categories of compounds of Trichosanthes before and after steaming did not change,but the chemical components changed. Compounds of Trichosanthes before and after steaming affect the difference in IR spectral information may mainly contain C=C-C=C or C=O or both of them.

Analysis of the changes in the chemical components in Fructus Trichosanthes, before and after the processing of steaming,based on the PCA and PLS-DA algorithms / 国际药学研究杂志

Objective To analyze the changes in the chemical components in Fructus Trichosanthes before and after the pro?cessing of steaming,so as to explore the material basis of the pharmacodynamic changes between Trichosanthes and steamed Tricho-santhes.Methods The peaks matching data of Fructus Trichosanthes and steamed Fructus Trichosanthes were obtained by using the similarity evaluation system for chromatographic fingerprints of traditional Chinese materia medica.The principal component analysis (PCA)model and the partial least squares discriminant analysis(PLS-DA)model for the analysis of the Fructus Trichosanthes and steamed Fructus Trichosanthes data were established using the SIMCA-P 11 statistical software for PCA and PLS-DA,from which the score chart,load chart and Variable Importance(VIP)value were obtained,so as to identify the main different components in Fructus Trichosanthes and steamed Fructus Trichosanthes.Results The PCA(R2X=0.96,Q2=0.552)model and PLS-DA(R2Y=0.917,Q2=0.579)model were established,and 8 chromatographic peaks with significant difference in peak area were selected.Among them,two of the chromatographic peaks were assigned to be 5-hydroxy methyl furfural and vanilla acid,and 5-hydroxy methyl furfural had the largest VIP value.In addition,an unknown component was also found in the steamed Fructus Trichosanthes,which was generated in the process of steaming and needed to be identified in future studies.Conclusion The content of some chemical components in Fruc?tus Trichosanthes were changed after the process of steaming,and the processing of steaming also caused the formation of an unknown chemical component.5-Hydroxy methyl furfural and vanillic acid seem to be a likely choice for exploring the material basis of the phar?macodynamic changes in Fructus Trichosanthes after the processing of steaming.

Radiological and Clinical Features of Eosinophilic Granulomatosis with Polyangiitis / 中国医学科学院学报

Eosinophilic granulomatosis with polyangiitis(EGPA),also known as Churg-Strauss syndrome,is a clinically rare small-vessel vasculitis associated with antineutrophil cytoplasmic antibodies (ANCAs) and the hypereosinophilic syndromes (HESs),characterized by asthma,disseminated necrotizing vasculitis,extravascular granulomas,peripheral eosinophilia,and tissue eosinophilia. This article reviews the pathology,imaging,and clinical features of EGPA.

Clinical risk factors for recurrent syncope in children with orthostatic intolerance / 中华实用儿科临床杂志

Objective To investigate clinical features and risk factors for recurrent syncope in children with orthostatic intolerance.Methods Patients with orthostatic intolerance and syncope admitted in the Second Hospital of Lanzhou University from January 2014 to June 2015 were retrospectively analyzed by using t test,Chi -square test,and Fisher′s exact probability method.According to frequency of syncope,all cases were divided into 2 groups,the occasio-nal syncope group and the recurrent syncope group.All risk factors including age,gender,body mass index(BMI),in-ducement,the history of motion sickness,family history,syncope -related injuries,performance of head -up tilt table test,and outcomes of head -up tilt table test were studied statistically and compared within 2 different groups.Results A total of 83 cases were enrolled in this study.Among these children,33 cases(39.76%)were assigned as occasio-nal syncope group,in which 17 cases were male and 16 cases were female and the age ranged from 6 to 18 years with the average age of (9.70 ±2.87)years;50 cases(60.24%)were assigned as recurrent syncope group,in which 27 ca-ses were male and 23 cases were female and the age ranged from 6 to 18 years with the average age of (11.24 ±2.83) years.Of all the investigated risk factors,the BMI and the history of motion sickness were significantly different between 2 groups[(18.84 ±3.49)kg/m2 vs (18.16 ±3.68)kg/m2 ,t =4.82,P =0.001;39.39%(13 /33 cases)vs 70.00%(35 /50 cases),χ2 =7.64,P =0.006].No significant difference was found in age distribution(6 -9 years,10 -14 years,15 -18 years)between 2 groups(P =0.428).There were no significant differences in gender (male /female), family history,or syncope -related injuries between 2 groups[17 /16 cases vs 27 /23 cases;3.03%(1 /33 cases)vs 10.00%(5 /50 cases);15.15%(5 /33 cases)vs 20.00%(10 /50 cases),all P >0.05].And no significant difference was found in inducement (prolonged standing,body posture change,emotional stress/emotional stimuli,muggy environ-ment,movement)between 2 groups [78.79% (23 /33 cases)vs 72.00% (36 /50 cases);9.09% (3 /33 cases)vs 14.00%(7 /50 cases);3.03%(1 /33 cases)vs 6.00%(3 /50 cases);12.12% (4 /33 cases)vs 10.00% (5 /50 cases);3.03%(1 /33 cases)and 12.00%(6 /50 cases),all P >0.05].And performances of head -up tilt table test (blurred vision/blacked out,nausea/vomiting,sweating,dizzy/headache,palpation,anhelation /chest tightness,hot, weak)between 2 groups showed no significant differences[18.18%(6 /33 cases)vs 12.00%(6 /50 cases);36.36%(12 /33 cases)vs 50.00%(25 /50 cases);24.24%(8 /33 cases)vs 26.00%(13 /50 cases);51.52%(17 /33 cases) vs 58.00%(29 /50 cases);6.06%(2 /33 cases)vs 16.00%(8 /50 cases);27.27%(9 /33 cases)vs 22.00%(11 /33 cases);33.33%(11 /33 cases)vs 32.00%(16 /50 cases);12.12%(4 /33 cases)vs 16.00%(8 /50 cases),all P >0.05].Also there were no significant differences in outcomes of head -up tilt table test between 2 groups(P =0.589). Conclusions The risk factors for recurrent syncope in children with orthostatic intolerance were low BMI and the his-tory of motion sickness for such children,and more positive and effective clinical intervention can improve the living quality of children with orthostatic intolerance to some extent.

Clinical features of noncompaction of ventricular myocardium in children / 临床儿科杂志

ObjectiveTo assess the clinical features of noncompaction of ventricular myocardium (NVM) in children. Methods The clinical data from ifve children with NVM were analyzed, including clinical manifestations, ultrasonic cardio-gram(UCG), electrocardiogram, chest X-ray, the process of diagnosis and treatment, and follow up.Results In ifve patients (3 boys and 2 girls) aged 3 months to 12 years, four of them were hospitalized because of pneumonia with heart failure. None of the ifve patients had thromboembolism. Heart enlargement was observed in all ifve patients on chest X-ray. By 2D ultrasonography, 2 patients had cardiac apex involvement, and 3 patients showed involvement of left ventricular wall and interventricular septum. In one patient, congenital partial defect of the endocardial cushion was observed. All patients were followed up for 3 to 36 months. One patient died of heart failure, 3 patients survived, and one patient was lost to follow-up.Conclusions The common clinical manifestation of NVM is the heart failure. UCG is preferred for NVM diagnosis. In children with refractory pneumonia and heart failure, NVM should be suspected.

Study of the risk factors for syncope in children with orthostatic intolerance / 临床儿科杂志

ObjectiveTo investigate the risk factors for syncope in children with orthostatic intolerance (OI).Methods The clinical data from 136 children with OI were retrospectively analyzed. The children were divided into syncope group and non-syncope group based on the existence of syncope. Results Among the 136 children, 77 children (56.62%) had syncope and 59 children (43.38%) did not have syncope. The differences in BMI, prevalence of inducement of prolonged standing, prevalence of accompanied symptoms of blurred vision/ blacking out, cold sweating and pallor, prevalence of the history of motion sickness and blood flow velocity of MCA were statistically significant between two groups (P<0.05). Conclusions Children with OI who has low BMI, inducement of prolonged standing, accompanied symptoms of blurred vision/ blacking out, cold sweating and pallor, the history of motion sickness, and fast blood flow velocity of MCA, are prone to syncope.

Impact of high-altitude exposure on hepatic gluconeogenesis in rats / 临床肝胆病杂志

ObjectiveTo study the effect of high altitude (HA) of 4300 m on the hepatic gluconeogenesis in rats and its underlying mechanism. MethodsThirty-six healthy adult male Sprague-Dawley (SD) rats were randomly assigned to group H1 (HA exposure for 1 day, n=6), group H3 (HA exposure for 3 days, n=6), group H7 (HA exposure for 7 days, n=6), group H15 (HA exposure for 15 days, n=6), group H30 (HA exposure for 30 days, n=6), and group C (no HA exposure, n=6). After the treatment, the mRNA and protein levels of glucose-6-phosphatase (G6Pase), and forkhead box transcription factor O1 (FoxO1) in the hepatic tissues were determined by RT-PCR and Western blot, respectively. The content of hepatic glycogen was determined by spectrophotometry, and the blood glucose level was measured using an automatic biochemical analyzer. The one-way analysis of variance (ANOVA) was used to analyze the differences between groups, and the Tukey test was further used to compare the differences between two groups. ResultsCompared with those in group C, the levels of G6Pase and glycogen in the hepatic tissues of rats increased significantly in groups H1, H3, and H7 (P＜0.05), and the expression level of FoxO1 decreased significantly in groups H3, H7, H15, and H30 (P＜0.01). No significant differences in the concentration of blood glucose were observed between the HA-treated groups. ConclusionIncreased hepatic gluconeogenesis and glycogen synthesis in the early phase of HA exposure may be one of the important mechanisms of HA acclimatization. FoxO1 and AMPK are involved in the regulation of hepatic gluconeogenesis. The increased content of hepatic glycogen is associated with the decreased activity of AMPK.

Study on the risk factors for coronary artery lesions in children with Kawasaki disease in Lanzhou / 临床儿科杂志

Objective To investigate the risk factors for coronary artery lesions (CALs) in children with Kawasaki disease (KD) in Lanzhou. Methods One hundred and seventy-four children with diagnosed KD were divided into CAL group and non-CAL group based on the existence of concurrent CALs. The age, gender, fever duration, intravenous immunoglobulin (IVIG) start time, IVIG dose, C-reactive protein (CRP), serum albumin, erythrocyte sedimentation rate (ESR), platelet (PLT), red blood cell count (RBC), hemoglobin and so on were compared. Results Among the 174 children, 46 children (26.44%) were complicated by CALs and 128 children were not. The differences of average fever duration, IVIG starting time, IVIG dose, PLT, CRP, ESR and RBC were statistically signiifcant (P10 d, start of IVIG af-ter 10 days of fever, increase of PLT, CRP and ESR and decrease of RBC, clinicians should be alert to the risk of concurrent CAL.