1.Reversible Posterior Leukoencephalopathy Synodrome
International Journal of Cerebrovascular Diseases 2006;0(12):-
The etiology of reversible posterior leukoencephalopathy syndrome(RPLS)is more complex.Its pathogenesis has a lot of controversies,and its clinical manifestations are headache, nausea,vomiting,epileptic seizure,consciousness disturbance and visual abnormality.Neuroim- aging examinations have shown that diffuse symmetrical white matter edema is predominantly in the bilateral posterior brain regions.Clinical symptoms and neuroimaging changes can be recov- ered completely after timely and effective treatment.If the treatment is delayed,it may compli- cate with cerebral infarction or hemorrhage,and lead to irreversible damage.
2.Isolation and Characterization of Chlorobenzene Degrading Bacteria
Hong-Jiang YANG ; Yan-Zhen LU ;
Microbiology 1992;0(04):-
In this study,we isolated and characterized chlorobenzene degrading bacteria from the effluent and sludge samples of one chemical plant.Minimal medium supplemented with chlorobenzene as sole car-bon source was used during the enrichment and domestication process.Seven major bacterial isolates were obtained and purified.Their 16S rRNA genes were amplified by PCR for sequencing and their identities were determined with homology comparisons.Five of the seven isolates belong to Actinomycetales in-cluding Kocuria KD139,Rhodococcus KD140,Rhodococcus KD142,Arthrobacter KD230,and Ar-throbacter KD232;one is classified as Bacillus d KD178;and another one as Stenotrophomonas KD237.The phylogenetic tree was also constructed based on the analysis of 16S rRNA gene sequences.Chloro-benzene concentrations were quantified with gas chromatography to investigate the bio-degradation rates of the isolated strains.Stenotrophomonas KD237 degraded 60.78% chlorobenzene in the minimal medium within 24 h.
3.Comparison of fundus fluorescein angiography and indocyanine green angiography for imaging of subretinal hemorrhage in age-related macular degeneration
Yonghao LI ; Lin LU ; Hong YAN
Chinese Journal of Ocular Fundus Diseases 2001;0(03):-
Objective To compare the effects of fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) on classifications and locations of choroidal neovascularization (CNV) located under subretinal hemorrhage in age-related macular degeneration, and on the area-measuring of subretinal hemorrhage. Methods The medical record of 177 patients with subretinal hemorrhage associated with AMD confirmed by photochrome of ocular fundus, FFA and ICGA examinations were retrospectively reviewed. The locations and classifications of CNV on the images of FFA and ICGA in the 177 patients and the area of subretinal hemorrhage of 30 patients randomly selected from the 177 patients were analyzed and measured. Results On the images of FFA, the locations and classifications of CNV could be defined in 160 patients (90.4%), and CNV was considered eligible for laser therapy in 24 patients (13.6%). On the images of ICGA, the locations and classifications of CNV could be defined in 175 patients (98.9%),and CNV was considered eligible for laser therapy in 51 patients (28.8%). There was no statistical difference of the locations (Z=-0.383,P=0.701) and classifications (?2=2.993,P=0.810) of CNV on the images of FFA and ICGA. The areas of blocked fluorescence measured on the images of FFA (=26.610 mm2 and M= 13.548 mm2) were larger than those of ICGA (=24.714 mm2, M=12.875 mm2) with statistical differences (Z=-3.000,P=0.003) between FFA and ICGA. Conclusions ICGA is beneficial for imaging CNV located under subretinal hemorrhage, and may increase the number of the patients who are considered eligible for laser treatment. The effect of measurement of the area of subretinal hemorrhage in AMD evaluated by FFA is better.
4.Diagnostic value of ultrasound for ectopic pregnancy
Hong LU ; Xingyun MOU ; Kun YAN
Chinese Journal of Primary Medicine and Pharmacy 2013;20(10):1487-1488
Objective To explore the diagnostic value of color Doppler ultrasonography and ultrasonography in the differential diagnosis of ectopic pregnancy.Methods 142 patients with ectopic pregnancy were given ultrasonic examination,to observe whether intrauterine gestational sac,carefully looking for recognition of ovarian masses and distinguish the relationship and structure,and were compared with pathologic diagnosis.Results Ultrasound could clearly display the uterus,ovary,failed to break the gestational sac and blood(block) mass image structure,with pathological diagnosis coincidence rate was 95.1% (135/142),the misdiagnosis rate was 1.4% (2/142),the missed diagnosis rate of 3.5% (5/142).Conclusion Ultrasound was rapid,simple,noninvasive,high-accuracy,it was the preferred method for early diagnosis of the ectopic pregnancy.
5.A prediction model for functional gain in stroke
Yan SUN ; Jianan LI ; Hong LU ; Jiaren XU
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(1):35-38
Objective To develop a prediction model for functional gain in the activities of daily living (ADL) after stroke rehabilitation. Methods Logistic regression was applied to 896 patient records from two hospitals. Functional gains in ADL were measured using a modified Barthel index (MBI). Results Five parameters were screened in the logistic regression model. The equation was: Logit( P/Y =1)=6.259+1.048 ( first onset to admission interval)+1.242(MBI score at admission)+0.300(number of comorbidities)+1.095(retired cadre dummy)+ 0.906(worker dummy) + 1.384 (professional dummy). This formulation accounted for about 78% of the variance in the data. Conclusions MBI score at admission, the interval between first onset and admission, comorbidities, job status and occupation are the main factors predicting functional ADL gains after stroke. The model can be used to predict outcomes for individual stroke patients at admission to rehabilitation.
6.Discussion on training of non-technical skills (NTS) in critical care medicine based on high fidelity human patient simulator
Hong YAN ; Heqing HUANG ; Kaizhi LU ; Changlin YIN
Chinese Journal of Medical Education Research 2013;(4):342-344
High fidelity human patient simulator has become more and more important in clinical medical practice education.Medical circle has more and more realized that non-technical skill (NTS) is closely associated with the improvement of medical quality.This paper attempted to carry out a preliminary discussion on theory and practice of applying NTS in simulation training of critical care medicine based on their own teaching experiences.
7.Quality standard for Naolingsu Tablets
Jing HAN ; Lizhang ZHOU ; Hong HAN ; Yan LU ;
Chinese Traditional Patent Medicine 1992;0(07):-
Objective:To establish the quality standard for Naolingsu Tablets.Methods: Applying the technique of TLC, Radix Ginseng and Herba Epimedii were identified. The content of icariin was determined by HPLC. Results: Radix Ginseng and Herba Epimedii can be determined by TLC. Icariin showed a good linear relationship in the range of 0.011 ~ 0.424 ?g and the average recovery is 102.1% , RSD is 1.0% . Conclusion: The methods are simple, sensitive and accurate with good reproducibility. The methods may be used for quality control of Naolingsu Tablets.
8.Advances in plant anthocyanin transport mechanism.
Lu WANG ; Silan DAI ; Xuehua JIN ; He HUANG ; Yan HONG
Chinese Journal of Biotechnology 2014;30(6):848-863
Anthocyanin biosynthesis is one of the thoroughly studied enzymatic pathways in biology, but little is known about the molecular mechanisms of its final stage: the transport of the anthocyanins into the vacuole. A clear picture of the dynamic trafficking of flavonoids is only now beginning to emerge. So far four different models have been proposed to explain the transport of anthocyanins from biosynthetic sites to the central vacuole, and four types of transporters have been found associated with the transport of anthocyanins: glutathione S-transferase, multidrug resistance-associated protein, multidrug and toxic compound extrusion, bilitranslocase-homologue. The functions of these proteins and related genes have also been studied. Although different models have been proposed, cellular and subcellular information is still lacking for reconciliation of different lines of evidence in various anthocyanin sequestration studies. According to the information available, through sequence analysis, gene expression analysis, subcellular positioning and complementation experiments, the function and location of these transporters can be explored, and the anthocyanin transport mechanism can be better understood.
Anthocyanins
;
metabolism
;
Biological Transport
;
Glutathione Transferase
;
metabolism
;
Membrane Transport Proteins
;
metabolism
;
Multidrug Resistance-Associated Proteins
;
metabolism
;
Plants
;
metabolism
;
Vacuoles
;
metabolism
9.SIMPP analysis on major satisfaction of students
Lu ZHANG ; Hong AN ; Ou TAO ; Surong YAN ; Yun WANG
Chinese Journal of Medical Education Research 2015;(7):690-693
The major satisfaction of college students will influence their learning interest and motivation, and then influence their learning achievement and future employment. Under the guidance of the concept of the micro system engineering of the education reform, the degree of the major satis-faction of the students in TCM colleges is analyzed by SIMPP method. The results show that students' behavior mode such as their preview situation, teaching adaptation, course satisfaction, students' achievement and their attitude of poor academic performance is closely related to the degree of major satisfaction. Teachers can judge the degree of major satisfaction by following these pattern behaviors;improve the rationality and accuracy of the degree of major satisfaction.
10.The value of pro-adrenomedullin in early diagnosis of sepsis
Yan LI ; Cailan LU ; Hong LIU ; Zheng LIU ; Wei DOU
Chinese Critical Care Medicine 2015;(9):739-742
ObjectiveTo explore the early diagnostic value of pro-adrenomedullin (pro-ADM) in sepsis. Methods A prospective study was conducted. Eighty-two patients with acute infection admitted to Department of Emergency of Shanxi Medical University Second Hospital from April 2013 to March 2014 were enrolled. According to the diagnostic criteria of sepsis, the patients with acute infection were divided into ordinary infection group [infection without systemic inflammatory response syndrome (SIRS),n = 25] and sepsis group (infection combined with SIRS, n = 57). According to degree of severity of sepsis, the latter group was subdivided into three subgroups: sepsis group (n = 22), severe sepsis group (n = 27) and septic shock group (n = 8). Twenty-four healthy persons were included to serve as healthy control group. The venous blood from all the research objects in hospital was collected within 24 hours. The levels of pro-ADM and procalcitonin ( PCT ) were determined by enzyme linked immunosorbent assay (ELISA), and acute physiology and chronic health evaluationⅡ (APACHEⅡ) score was recorded. The relationship between pro-ADM and PCT and also APACHEⅡ score was analyzed with Pearson correlation analysis. The receiver-operating characteristic curve (ROC) of pro-ADM and PCT were used to evaluate the diagnostic acuity of sepsis.Results The plasma levels of pro-ADM, PCT and APACHEⅡ score in sepsis group were significantly higher than those in ordinary infection group and healthy control group [pro-ADM (ng/L): 66.69±1.73 vs. 53.43±2.70, 45.87±1.43; PCT (ng/L):1 336.49±40.26 vs. 1 083.09±47.99, 959.04±37.53; APACHEⅡ score: 14.60±0.81 vs. 8.10±1.14, 3.00±1.15,allP< 0.01]. With the aggravation of sepsis, the levels of pro-ADM, PCT and APACHEⅡ score were gradually increased, and there were significant differences among sepsis, severe sepsis, and septic shock groups [pro-ADM (ng/L): 64.91±2.50, 73.56±2.80, 84.67±4.52; PCT (ng/L): 1 152.65±48.62, 1 233.93±63.06, 1 475.71±109.93;APACHEⅡ score: 12.91±1.15, 14.55±1.14, 19.37±2.40,P< 0.05 orP< 0.01]. Pearson correlation analysis results showed that the level of pro-ADM was positively related with PCT (r = 0.473,P = 0.006), and it was also positively correlated with APACHEⅡ score (r = 0.707,P = 0.008). ROC curve analysis showed that area under the ROC curve (AUC) of pro-ADM for diagnosis of sepsis was 0.823 (P = 0.003). When the cutoff value was 59.40 ng/L, the sensitivity was 80.7%, the specificity was 68.0%, the positive predictive value was 85.2%, and the negative predictive value was 60.7%. AUC of the PCT for diagnosis of sepsis was 0.653 (P = 0.043). When the cutoff value was 1 194.67 ng/L, the sensitivity was 68.4%, the specificity was 64.0%, the positive predictive value was 81.8%, and the negative predictive value was 44.7%. It was proved that the pro-ADM had a higher diagnostic value for sepsis than PCT.Conclusion The plasma levels of pro-ADM can be used as an early indicator in diagnosis and severity evaluation and prognosis in patients with sepsis .