Total 786 cases of acute uncomplicated appendicitis(UCAA) were included for analysis.All the cases were given antibiotics as a main treatment.Clinical cure rate and the number of cases requiring surgery were observed.Patients with conservative treatment were followed up and the recurrence was observed.Logistic regression was applied to analyze the risk factors of recurrence.Among 786 cases,774 (98.5％) were treated conservatively and achieved clinical cure;68 cases (9.0％) had recurrence during follow-up,the median time to recurrence was 11 months (1-33 months).Logistic regression analysis showed that age(OR =1.124,95％ CI:1.067-3.790,x2 =2.767,P =0.041) and appendix bezoar (OR =1.649,95％ CI:1.281-4.055,x2 =3.935,P =0.027) were independent risk factors for recurrence.Non-operative treatment for acute uncomplicated appendicitis shows a good short and long term effects.Surgical excision may be a better choice for the patients with high risks of recurrence.

This paper briefly introduces the frame structure, design concept and main functional modules of outpatient emergency care information system developed by our hospital. This system can optimize the procedure when patients seek medical advice, create warm medical circumstances, increase work efficiency of medical care personnel, strengthen quality management of medical cases and promote hospital modern construction.

Objective To investigate the safety and efficacy of low-dose recombinant tissue plasminogen activator (rtPA) in Chinese patients with acute ischemic stroke. Methods Consecutive patients with acute ischemic stroke received rtPA intravenous thrombolysis within 4. 5 h after symptom onset were enrol ed retrospectively. According to the dosage of rtPA, they were divided into either a low-dose group (0. 5-0. 8 mg/kg, the maximum dose 50 mg) or a standard dose group (0. 9 mg/kg, the maximum dose 90 mg). The incidences of symptomatic intracranial hemorrhage ( sICH) ( the National Institute of Neurological Disorders and Stroke [NINDS], and European Cooperative Acute Stroke Study Ⅱ [ECASSⅡ] , European Safe Implementation of Thrombolysis in Stroke-Monitoring Study [ SITS-MOST ] ), 90 d mortality, 90 d good outcome (the modified Rankin Scale [mRS] score 0-1), and life self-care ability (mRS score 0-2) were compared between the two groups. Results A total of 163 patients were enrol ed, including 74 patients in the low-dose group and 89 in the standard dose group. The constituent ratios of hypertension (44. 6% vs. 68. 5%; χ2 =9. 490, P=0. 002) and diabetes (5. 4% vs. 28. 1%; χ2 =14. 216, P<0. 001) in the patients of the low-dose group were significantly lower than those of the standard group, while the constituent ratios of smoking (56. 8% vs. 38. 2%; χ2 =5. 590, P=0. 018 ) and smal artery occlusive stroke (21. 6% vs. 10. 1%; χ2 =4. 122, P=0. 042 ) in patients of the low-dose group were significantly higher than those of the standard group. After adjusting for age, National Institutes of Health Stroke Scale (NIHSS) score, hypertension, diabetes, smoking, and ischemic stroke typing, multivariate binary logistic analysis showed that there were no significant differences in NINDS defined sICH (10. 8% vs. 9. 0%, odds ratio [OR] 1. 077, 95%confidence interval [CI] 0. 338-3. 436), ECASS Ⅱdefined sICH ( 9. 5% vs. 9. 0%; OR 0. 976, 95% CI 0. 296- 3. 221 ), SITS-MOST defined sICH (8. 1% vs. 4. 5%; OR 2. 269, 95% CI 0. 522-9. 852), 90 d mortality (17. 6% vs. 14. 6%; OR 1. 720, 95% CI 0. 578-5. 119), 90 d good outcome (35. 1% vs. 32. 6%;OR 0. 780, 95% CI 0. 356-1. 709), and life self-care ability (48. 6% vs. 42. 7%;OR 0. 936, 95% CI 0. 441-1. 987) between the 2 groups (al P>0. 05). Conclusions The program of intravenous thrombolysis for the treatment of Chinese patients with acute ischemic stroke with low-dose rtPA is safe and effective.

AIM:To investigate the effects of N-acetylcysteine (NAC) on acute lung injury induced by H9N2 swine influenza virus ( SIV) in mice.METHODS: BALB/c mice were used to establish the animal model of acute lung injury by nasal inoculation of H9N2 SIV.The mice were divided into control group (without SIV infection), H9N2 SIV group (inoculation of H9N2 SIV) and NAC group (inoculation of H9N2 SIV plus pretreatment with NAC).The pulmonary edema was evaluated by determining the lung wet weight /dry weight ( W/D) ratio.The pathological changes of the lung tis-sues were observed .The concontrations of TNF-α, IL-1βand IL-6 in bronchoalveolar lavage fluid ( BALF) were meas-ured.The virus titer, T-SOD activity, MPO activity and MDA content in the homogenate of the lung tissues were detected . RESULTS:Treatment with NAC decreased the morality of infected mice , and significantly prolonged the survival time of infected mice .The pathological changes of the lung tissues , the lung W/D ratio and the lung index were relieved when SIV infected the mice treated with NAC .Treatment with NAC significantly decreased the infiltration of inflammatory cells inclu-ding macrophages, lymphocytes and neutrophils in the BALF .The levels of TNF-α, IL-6, IL-1βand MDA and the activity of MPO were also decreased.Treatment with NAC also significantly increased the T-SOD activity.CONCLUSION: The protective effect of NAC on the acute lung injury mouse model is related to suppression of the oxidative stress and inflamma -tory responses .

OBJECTIVETo observe application value of multispectral animal living imaging technology in rats model of osteoarthritis.

METHODSFifteen male SD rats weighed (180 +/- 20) g (3 months old) were received intra-articular injection of iodoacetic acid for establishing osteoarthritis. Articular cavity of left knee of rats were injected into 50 microl iodoacetic acid. The same volume of sterile saline was injected into right knee articular cavity as control. X-ray living imaging and bone mineral density were observed at 2 and 4 weeks after establishment of model. After 4 weeks,rats were sacrificed and their bilateral joints were collected and determined histologically based on Collins classification and Kellgren-Lawrence classification.

RESULTSOsteoarthritis model was successfully established, compared with control group, model group showed typical manifestation of osteoarthritis, including irregular cartilage surface,osteophyte formation,joint deformity and cartilage defect,and combined with significant decrease of bone density (P < 0.01), while the decrease was not obvious in proximal tibia (P < 0.05). After 2 weeks, knee joints in model group was classified as Collins grade 1 and Kellgren-Lawrence grade 2,then classified as Collins grade 4 and Kellgren-Lawrence grade 3 after 4 weeks,control group showed smooth articular surface,normal joint space and intact cartilage surface, knee joints was classified as Collins and Kellgren-Lawrence grade 0, and bone density of distal femur and proximal tibia were normal.

CONCLUSIONMultispectral animal living imaging technology could be used in dynamic observation of living imaging and detection of bone density in the animal model of osteoarthritis, and it is significant for evaluation of osteoarthritis model, and its realted tesearch.

Animals ; Bone Density ; Disease Models, Animal ; Humans ; Knee Joint ; diagnostic imaging ; Male ; Osteoarthritis ; diagnosis ; diagnostic imaging ; physiopathology ; Radiography ; Rats ; Rats, Sprague-Dawley

Based on the investigation and analysis of industry dynamics of health maintenance Applications (APP) of Traditional Chinese Medicine (TCM),the paper designs and develops health maintenance APP of TCM,and describes its architecture,operating principle,functions,innovativeness,applicability scope,etc.

To reveal the colonization characteristics in host of endophytic biocontrol bacteria NJ13 isolated from Panax ginseng, this study obtained the marked strain NJ13-R which was double antibiotic resistant to rifampicin and streptomycin through enhancing the method of inducing antibiotic. The colonization characteristics in ginseng and its biocontrol efficiency against Alternaria spot of ginseng in the field were studied. The results showed that the strain could colonize in root, stem and leaf of ginseng and the colonization amount was positive correlated with inoculation concentration. Meanwhile, the strain could infect and then transfer in different tissues of ginseng The colonization amount of strain in roots and leaves of ginseng increased first and then decreased. However, the tendency of colonization amount of strain in stems was ascend at first and then descend slowly, and was more than that in roots and leaves along with time, which had a preference to specific tissue of its host. In field experiment, the endophytic bacteria NJ13 was proved to be effective in controlling Alternaria leaf spot of ginseng. The biocontrol efficiency of fermentation broth at the concentration of 0.76 x 10(8) cfu x mL(-1) reached 75.62%, which was close to the controlling level (73.06%) of 0.67 mg x L(-1) 50% cyprodinil WG.
Alternaria ; physiology ; Antibiosis ; Bacillus ; growth & development ; isolation & purification ; physiology ; Endophytes ; growth & development ; isolation & purification ; physiology ; Panax ; growth & development ; microbiology ; Plant Diseases ; microbiology

Objective:To master the iodine nutritional level of children aged 8-10 and pregnant women in non-iodine excess areas in Hebei Province, and provide scientific basis and targeted prevention and treatment strategies for prevention and treatment of iodine deficiency disorders.Methods:Iodine nutrition analysis was conducted in 162 counties (cities and districts, hereinafter referred to as counties) of Hebei Province in 2018. Each monitoring county was divided into 5 sampling areas according to east, west, south, north and middle locations. One township/street was randomly selected in each area, 1 primary school was selected in each township/street, and 40 non-boarding students aged 8-10 were selected from each primary school. In each monitoring county, 20 pregnant women were selected from each of the 5 townships/streets. Both children and pregnant women were collected samples for salt and urinary iodine (with a random urine sample) detection. The iodine content of salt was tested using the "General Test Method for Salt Industry-Determination of Iodine" (GB/T 13025.7-2012), and Sichuan salt and other fortified edible salt used the arbitration method. The urinary iodine content was tested using the "Arsenic-Cerium Catalytic Spectrophotometric Determination of Iodine in Urine" (WS/T 107-2006).Results:A total of 31 883 samples of edible salt were collected from children's homes in 162 counties, among which 28 539 were iodized salt, 26 456 were qualified iodized salt, the iodized salt coverage rate was 88.36% (after population standardization), and the qualified iodized salt consumption rate was 81.03% (after population standardization). A total of 31 883 urine samples were collected from children, with the median urinary iodine of 193.13 μg/L. There was one county with a median urinary iodine < 100 μg/L, and the median urinary iodine in 150 counties was 100-299 μg/L. A total of 15 572 salt samples of pregnant women were collected, among which the iodized salt samples were 14 260, the qualified iodized salt samples were 13 363, the iodized salt coverage rate was 90.10% (after population standardization), and the qualified iodized salt consumption rate was 83.54% (after population standardization). A total of 15 569 pregnant women were collected urine samples, the median urinary iodine was 164.86 μg/L, and the number of counties with a median urinary iodine < 150 μg/L was 67.Conclusions:Iodine nutrition of children and pregnant women is appropriate at the provincial level, but children and pregnant women in some counties are at risk of iodine deficiency. In the future, the prevention and treatment of iodine deficiency disorders should focus on the iodine nutrition monitoring of the special needs.

[ ABSTRACT] AIM:To investigate whether kaempferol protects against acute lung injury induced by swine -origin influenza A H9N2 virus via down-regulation of NF-κB signaling pathway .METHODS:BALB/c mice were used to estab-lish the animal model of acute lung injury by nasal inoculation of swine-origin influenza A H9N2 virus.After the interven-tion with kaempferol , the pulmonary edema was evaluated by determining the lung wet weight /dry weight ( W/D) ratio, the pathological changes of the lung tissues were observed , the concentrations of TNF-α, IL-1βand IL-6 in the bronchoalveolar lavage fluid (BALF) were measured, and superoxide dismutase (SOD) activity, myeloperoxidase (MPO) activity and MDA content in the homogenate of the lung tissues were detected .NF-κB P65 levels were determined by Western blot , and the NF-κB P65 and NF-κB P50 nuclear translocation in the nuclear extracts from mouse lung tissue homogenate was detec-ted by ELISA .RESULTS:Treatment with kaempferol decreased the morality of infected mice , and significantly prolonged the survival time of the infected mice .Kaempferol also relieved the pathological changes of the lung tissues , the lung W/D ratio and the lung index in swine-origin influenza A H9N2 virus-infected mice.Treatment with kaempferol significantly de-creased the infiltration of inflammatory cells including macrophages , lymphocytes and neutrophils in the BALF .The levels of TNF-α, IL-6, IL-1βand MDA and the activity of MPO were also decreased .Treatment with kaempferol also significantly increased the SOD activity .NF-κB P65 levels were decreased , and the NF-κB P65 and NF-κB P50 nuclear translocation in the nuclear extracts from the mouse lung tissue homogenate were also decreased by treatment with kaempferol .CONCLU-SION:The protective effect of kaempferol on the mice with acute lung injury induced by swine -origin influenza A H9N2 vi-rus is related to suppression of the oxidative stress and inflammatory responses by down-regulation of NF-κB signaling path-way.

Objective To investigate the influencing factors of in-hospital delay using alteplase for intravenous thrombolytic therapy in patients with acute ischemic stroke.Methods From January 2006 to May 2015,220 consecutive patients with acute ischemic stroke admitted to the Department of Neurology,Tangshan Gongren Hospital Affiliated to North China University of Science and Technology were enrolled retrospectively.They all received alteplase for intravenous thrombolytic therapy.Their mean National Institutes of Health Stroke Scale (NIHSS) score on admission was 16±8.According to door-to-needle time (DNT),they were divided into either a delay group (DNT >60 min;n=151) or a non-delay group (DNT ≤60 min;n=69).The baseline data,laboratory tests,onset-to-door (OTD) time,imaging,and etiology classification of trial of org 10172 in acute stroke treatment (TOAST) of both groups were recorded.Univariate analysis was performed on both groups,and further multivariate logistic analysis was performed.Results (1) The proportion of the past history of transient ischemic attack,blood glucose level on admission,time from onset to hospital in the non-delay group were significantly higher than those of the delay group.There were significant differences between the two groups (43.5%[30/69] vs.3.3%[5/151],7.9±3.0 mmol/L vs.6.9±2.1 mmol/L,95±53 min vs.80±34 min,all P<0.05).There were significant differences in the constituent ratio of TOAST classification between the two groups (P<0.05).There were no significant differences in other baseline data and clinical features between the two groups (all P>0.05).(2) Multivariate Logistic regression analysis showed that the risks of patients with the past history of transient ischemic attack (OR,0.330,95%CI 0.109-0.998,P=0.046),elevated blood glucose levels on admission (OR,0.775,95%CI 0.657-0.914,P=0.005),prolonged onset-to-door time (OR,0.648,95%CI 0.504-0.831,P=0.013),internal carotid artery lesions (OR,0.192,95%CI 0.038-0.960,P=0.044) for occurring in-hospital delay after thrombolysis were low.Systolic pressure on admission(OR,1.275,95%CI 1.091-1.491,P=0.027)and cardioembolism(OR,3.892,95%CI 1.661-9.112,P=0.006) for occurring in-hospital delay after thrombolysisin were high.Conclusion The patients with past history of transient ischemic attack,higher blood glucose,prolonged onset-to-door time,and having internal carotid artery lesions may be cause the attention of family members and doctors,and were less prone to having thrombolytic in-hospital delay,whereas those with higher systolic blood pressure on admission and cardioembolism were prone to having in-hospital delay.