@@

Objective To assess the correlation between magnetic resonance imaging (MRI)and clinical staging of pelvic organ prolapse (POP)by using pubococcygeal line (PCL)and midpubic line (MPL)respectively.And to determine which(MRI)reference line for staging pelvic organ prolapse had the highest agreement with clinical staging.Methods A retrospective study of 32 women with pelvic organ prolapse who underwent dynamic pelvic MRI from Jan 2013 to May 2013 was conducted.One radiologist staged descent on MRI for each pelvic compartment (anterior,middle,posterior),using PCL and MPL lines.Agreement between MRI and clinical staging was estimated respectively.Results Thirty-two women were included.Agreement between clinical and MPL staging was morderate in the anterior (κ=0.44,SE=0.13)and middle compartment (κ=0.46,SE=0.12),but fair in the posterior com-partment (κ=0.23,SE=0.10).Agreement between clinical and PCL staging was poor in all compartments of pelvic.Conclusion MPL appeared more reliable and simple than the PCL for the evaluation of pelvic prolapse on MRI.

Aims To establish a UPLC-MS method for quantifying protocatechuie acid,kaempferol-3-O-β-D-glucoside and quercitrin and to investigate the pharma-cokinetics of three indix components in flower of Poly-gonumorientale L.in rat plasma.Methods The anal-ysis was achieved by BEH C18 column (2.1 mm ×100 mm,1.7 μm)with a mobile phase composed of 0.1%formic acid using step gradient elution.A TQD tandem mass spectrometry equipped with electrospray ionization source was used as detector and operated by selected ion recording(SIR)mode.Results In the selected linear range,calibration curves of the three markers components showed good linearity.Extraction recovery rate,precision,accuracy and stability reached the de-termination request.The parameters of Tmax (h ) in three index components were 0.46 ±0.1,0.79 ±0.33 and 2.63 ±4.6,respectively;Cmax (μg·L -1 )in three index components were 463.8 ±207.81,18.53 ±7.82 and 137.38 ±71.09,respectively.Conclusion The fully validated UPLC-MS method has been successfully applied to the pharmacokinetic study of the three index components in flower of Polygonumorientale L.in rat plasma.

Objective To investigate the characteristics of ocular movement disorders in patients with multiple sclerosis (MS) and neuromyelitis optica (NMO), and explore the clinical application of videonystagmograph (VNG) exami?nation in the diagnosis and differential diagnosis of MS. Methods Sixteen MS ,10 NMO and 30 control ( sudden deafness ) patients were enrolled prospectively. Ocular movement disorders including saccades, gaze fixation, smooth pursuits, opto?kinetic nystagmus and spontaneous nystagmus were evaluated by using VNG. Results The positive rate of ocular motility disorders in MS patients detected by VGN was 68.75%. The incidences of abnormalities in saccades, smooth pursuits and optokinetic nystagmus were significantly higher in MS than in control groups (P= 0.000, 0.001 and 0.001, respectively). The positive rate of ocular motility disorders in NMO patients detected by VGN was 80.00%. The incidences of abnormal?ities in saccades, gaze fixation, smooth pursuits and optokinetic nystagmus were significantly higher in NMO than control groups (P=0.000, 0.012, 0.000 and 0.002, respectively). The positive rate of ocular motility disorders was not significant? ly different in MS and MS patients (68.5%vs. 80%,P>0.05). Compared with bedside physical examination, VNG showed a notable higher sensitivity in the detection of ocular motility disorders(68.75% vs. 37.50%). Furthermore, VNG disor?ders might indicate brain lesions undetected by MRI. Conclusion This small sample research indicates that VNG is a valuable tool in the detection of ocular motility disorders as well as brain lesions in MS and NMO patients. However, its role in the differential diagnosis between MS and NMO is not confirmed.

Spontaneous intracerebral hemorrhage (ICH) has the highest rates of mortality and morbidity in stroke types.Experimental and clinical studies demonstrate that inflammatory reactions are early triggered by hematoma components,enhance the damage within the hemorrhagic brain,and influence the prognosis.Recent studied show that neutrophil to lymphocyte ratio (NLR),as an easily available biomarker to assess the systemic inflammatory status,has predictive roles in patients with ICH.This article reviews the predictive roles of NLR in patients with acute ICH.

Objective To evaluate the diagnostic value of high resolution diffusion weighted imaging (RESOLVE-DWI) in adolescent primary osteosarcoma,and to compare the difference of image quality and apparent diffusion coefficient (ADC) value with conventional DWI echo planar imaging (EPI)-DWI.Methods Siemens Skyra 3.0T superconducting magnetic resonance imaging (MRI) scanner was used to collect MRI images of 30 patients suspected to be adolescent primary osteosarcoma.RESOLVE-DWI EPIDWI was performed.Meanwhile,the signal-to-noise (SNR) and ADC values of osteosarcoma tissues were measured and compared with the final pathological examination results.The image quality scores,SNR and ADC values of different diffusion weighted imaging sequences were tested by two independent samples t test.Results The overall quality of RESOLVE-DWI sequence images was significantly better than that of EPIDWI diffusion images,including 23 patients with RESOLVE-DWI scores ≥ 4 scored and 1 patients with EPI-DWI scores≥ 4,with significant difference(P ＜ 0.01).The mean ADC values of osteosarcoma tissues in RESOLVE-DWI sequence group and EPIDW sequence group were(856.16 ± 21.06) × 10-3 mm2 and (824.49 ±33.45) × 10-3 mm2,with no significant difference (P ＞0.05).The average SNR of RESOLVEDW1 group was significantly higher than that of EPI-DW1 sequence group (3.77 ± 0.51 vs 1.97 ± 0.23,P ＜ 0.01).Conclusions RESOLVE-DWI can improve the image quality and the SNR,and the ADC value of osteosarcoma tissue is not affected.It can provide more valuable diagnostic efficacy for the diagnosis of primary osteosarcoma in adolescents,and can be routinely used in the scanning of primary osteosarcoma in adolescents.

Diabetes is an important risk factor for ischemic stroke. The glycated hemoglobin (HbA1c) level reflects the mean blood glucose level in the past 8-12 weeks. It is a detection index of abnormal glucose metabolism and chronic hyperglycemia. Some studies have shown that high HbA1c is associated with the poor outcomes of patients with acute ischemic stroke, including patients treated with intravenous thrombolysis and endovascular mechanical thrombectomy. This article reviews the relationship between HbA1c and the outcomes of patients with acute ischemic stroke.

The clot burden score (CBS) is a scoring method that quantifies the range of intracranial thrombosis in the anterior circulation ischemic stroke according to the location. Some studies have shown that CBS has predictive value for patients with acute ischemic stroke receiving reperfusion therapy, including functional outcome, vascular recanalization, and hemorrhagic transformation.

Objective:To investigate the prevalence and molecular characteristics of Escherichia coli ( E. coli) producing a novel Shiga toxin 2k subtype in goat in Lanling county, Shandong province. Methods:In November 2019, 512 goat fecal samples were collected from different households in Lanling county, Shandong province. After enriched with EC broth, stx-positive samples were detected by PCR and inoculated in CHROMagar? ECC agar and CHROMagar? STEC agar. The whole genomes of stx-positive strains were sequenced. Based on the genomic senquences, the stx subtype, serotype, multi-locus sequence type and virulence genes of each strain were analyzed. Results:Eighty-six strains of Shiga toxin-producing E. coli (STEC) were isolated from 512 goat fecal samples. Five stx subtypes were identified and 37 strains were positive for stx2k. The 86 STEC strains belonged to 20 O∶H serotypes and 18 different sequence types (STs). Conclusions:STEC strains circulating in goats in Lanling county, Shandong province were heterogeneous in stx subtypes, serotypes and virulence gene profiles, and a certain proportion of strains producing a novel Shiga toxin 2k subtype were detected.

Objective: To analyze the teaching environment of primary, middle and high schools in Suzhou, and to explore the relevance of students’ myopia with teaching environment, as well as the key problems in teaching environment. Methods: 1 253 classrooms in 204 schools rom 10 districts and counties in Suzhou were selected by proportionate stratified sampling. The qualified rate of each indices was described and the teaching environment by county, learning stage were compared by using chi-squared test. The Spearman test is used to explore correlations between myopia with monitoring indicators. Results: The qualified rate of the distance from lamp to table was the highest (98.56%), while matching rate of student desk and chair was the lowest(0.96%). Minimum lamp table spacing, blackboard average illumination, reflectance from blackboard wall, classroom per capita area, classroom microclimate differed significantly in urban and rural (P<0.05); daylighting coefficient, reflectance from walls, average illumination of desktop and blackboard, classroom per capita area, and microclimate indicator were statistically different by learning stages(r=0.42,P<0.05). Prevalence of myopia correlated with the index of lighting. Conclusion Qualified desks and matched chairs, as well as the daylighting design in classroom should receive more attention in Suzhou. The findings lend support to identification of key health priorities and formulation of the localized health practice for health administrations.