1.Fiberoptic bronchoscope guided intubation low-pressure cuff on tracheal intubation expansion for prevention traumatic stenosis.
Yang TAN ; Yan-mei LIU ; Li-zhen YAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(10):864-865
Adult
;
Bronchoscopy
;
Female
;
Humans
;
Intubation, Intratracheal
;
adverse effects
;
methods
;
Laryngostenosis
;
etiology
;
prevention & control
;
Larynx
;
injuries
;
Male
;
Wounds and Injuries
;
surgery
;
Young Adult
3.Laser scanning confocal microscopy findings of phlyctenular ophthalmia
Yan, WU ; Zhen-ping, HUANG ; Chun-yan, XUE ; Feng, YAN ; Yao, SHI
Chinese Journal of Experimental Ophthalmology 2013;(5):489-492
Background Phlyctenular ophthalmia is a delayed hypersensitivity reaction to some microprotein and affected mainly by adolescent in high incidence.Objective This study was to investigate the microscopy findings of phlyctenular ophthalmia and evaluate the histological changes by laser scanning confocal microscope.Methods Twenty-nine eyes suffered from phlyctenular ophthalmia and twenty normal eyes were examined using laser scanning confocal microscope.The pictures were taken by a CCD camera.All the cases had initially chest X-ray,tuberculin test,bacterial and mycobacteria culture.Results Dendritic and inflammatory cells were increased and concentrated in conjunctiva,and epithelial cells were deformed and squamatizated.The capillaries engorged and the goblet cells were injured.The corneoscleral Vogt meshing of the phlyctenular keratitis was obscured and dendritic cells were intruded into the corneas.The corneal epithelium of phlyctenular keratitis was absent and the subepithelial nerve plexus were bended and fractured,and the dendritic and inflammatory cells were intruded.Scarring of corneal stroma was seen under the laser scanning confocal microscope.Conclusions Laser scanning confocal microscopy is valuable for basic research and clinical diagnosis of phlyctenular ophthalmia.
4.Optimization of formulation and process for quercetin-loaded nanoliposomes
Yan-Fei DING ; Yao YAO ; Yu-Fei TAO ; Xiu-Zhen FENG ;
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To prepare quercetin liposomes and establish a method for determination of its entrapment efficiency.Methods The film dispersion-homogenizing method was used to prepare quercetin liposomes.The formulation was optimized on the basis of orthogonal design and its entrapment efficiency was performed by the protamine sedimentation method.Results The optimal conditions were found to be cholesterol-egg phospholipid=1:3,quercetin-vehicle = 1:40,homogenization pressure 103.4 MPa for three times.The average entrapment efficiency of the optimized nano-liposomes was 92.1%.Conclusion The film dispersion-homogenizing method could be used to prepare quercetin liposomes.The protamine sedimentation method is convenient,accurate,and suitable for the determination of the entrapment effi- ciency of quercetin liposomes.
5.Proteomic screening of the proteins associated with early lung squamous carcinoma
Zhen YAN ; Guizhi LIU ; Jianshe WANG ; Fang ZHOU ; Wu YAO ; Weidong WU ; Yiming WU
Tumor 2010;(2):130-133
Objective:To screen the early biomarkers associated with lung carcinoma by using proteomic method. Methods:The proteins of early lung squamous cell carcinoma tissues and adjacent normal tissues were separated by two-dimensional gel electrophoresis (2-DE) and differentially expressed proteins were screened by mass spectrometry (MS). The differential expressions of part proteins were verified by immunohistochemical method. Results:The proteomic profiles of lung squamous cell carcinoma and the adjacent normal tissues were established and the average matched protein spots in the two group were 626 and 602, respectively. Ten protein spots with higher expression in lung squamous cell carcinoma tissues were identified as Annexin 1(Anx-A1),heat shock proteins (HSP27), etc. The proteins were mainly related with cell cycle and signal transduction. The results of immunohistochemistry showed that the positive expression rates of Anx-A1 and HSP27 in lung squamous cell carcinoma tissues were significantly increased (P<0.05). Conclusion:Proteomic technology was an effective method for preliminary identification of the proteins associated with early lung carcinoma. The identified proteins laid a solid foundation for further screening the molecular markers for early diagnosis and treatment of lung cancer.
6.An survey of brucellosis infection and exposure status of sheep farmers' family members in the western pastoral areas of Jilin Province
Fanyu LIU ; Chaoling GUAN ; Ye LI ; Zhichen YUAN ; Di WANG ; Qing ZHEN ; Yan YAO
Chinese Journal of Endemiology 2014;33(1):80-83
Objective To find out the current situation of brucellosis infection and exposure status of family members of sheep farmers in the western pastoral areas of Jilin Province,and to provide a reference for control of human brucellosis spreading among family members.Methods On November 2012,Qianguo County was randomly selected using a multi-stage sampling method,and two townships,Chaganhua and Wulantala,were randomly selected in the county; half of the villages were selected from each township; all family members of the sheep farmers in these villages were investigated about their demographic characteristics (sex,age,education),high-risk behavior and information about brucellosis infection by using a questionnaire survey.Based on the principle of informed consent,respondents venous blood samples were collected.Brucellosis was confirmed with serum agglutination test (SAT).The effects of gender,age,education and other demographic data,high-risk behavior and high-risk behavior protection on the prevalence of brucellosis were studied.Results Out of the 403 copies of qualified questionnaires collected,84 people were found infected with brucellosis,and the infection rate was 20.84% (84/403).Men infection [24.78% (57/230)] was higher than that of women [15.61% (27/173),x2 =5.038,P < 0.05].The rates of eight kinds of high-risk behaviors were:helping feeding 86.85% (350/403),cleaning sheepfold 80.40% (324/403),holding lamp 71.71% (289/403),delivering sheep 61.54% (248/403),vaccinating sheep 53.85% (217/403),apoblema 47.39% (191/403),milking 22.08% (89/403) and slaughtering sheep 14.89% (60/403).The highest risk behavior was vaccinating sheep[24.40%(53/217)],and the lowest was milking [16.90% (15/89)].The highest rate of basic protection was delivering a sheep [31.85% (79/248)],the next was apoblema[27.23% (52/191)],and the lowest was slaughtering sheep [8.33% (5/60)].There was no statistical significant difference between brucellosis infection and the eight kinds of high-risk behaviors as well as the basic protective behaviors.Conclusions The prevalence of brucellosis infection among sheep farmers' family members is higher than others.Brucellosis infection-related contact manner is ubiquitous and the level of basic protection is low.We should carry out targeted health education on sheep farming household members to improve their level of protection,so as to reduce the risk of brucellosis infection.
7.Positioning errors assessed with kV cone-beam CT for image-guided prostate radiotherapy
Jiongyan LI ; Xiaomao GUO ; Weiqiang YAO ; Yanyang WANG ; Jinli MA ; Jiayi CHEN ; Zhen ZHANG ; Yan FENG
Chinese Journal of Radiation Oncology 2010;19(6):541-543
Objective To assess set-up errors measured with kilovoltage cone-beam CT (KV-CBCT), and the impact of online corrections on margins required to account for set-up variability during IMRT for patients with prostate cancer. Methods Seven patients with prostate cancer undergoing IMRT were enrolled onto the study. The KV-CBCT scans were acquired at least twice weekly. After initial set-up using the skin marks, a CBCT scan was acquired and registered with the planning CT to determine the setup errors using an auto grey-scale registration software. Corrections would be made by moving the table if the setup errors were considered clinically significant ( i. e. , > 2 mm). A second CBCT scan was acquired immediately after the corrections to evaluate the residual error. PTV margins were derived to account for the measured set-up errors and residual errors determined for this group of patients. Results 197 KV-CBCT images in total were acquired. The random and systematic positioning errors and calculated PTV margins without correction in mm were:a) Lateral 3. 1,2. 1,9. 3;b) Longitudinal 1.5, 1.8, 5. 1 ;c) Vertical 4. 2,3.7, 13.0. The random and systematic positioning errors and calculated PTV margin with correction in mm were:a) Lateral 1.1,0. 9, 3.4;b) Longitudinal 0. 7, 1.1, 2. 5;c) Vertical 1.1, 1.3, 3.7. Conclusions With the guidance of online KV-CBCT, set-up errors could be reduced significantly for patients with prostate cancer receiving IMRT. The margin required after online CBCT correction for the patients enrolled in the study would be appoximatively 3-4 mm.
8.Nutritional depletion in chronic obstructive pulmonary disease.
Acta Academiae Medicinae Sinicae 2004;26(5):595-599
Chronic obstructive pulmonary disease (COPD) is one of the major diseases worldwide. Nutritional depletion is a common problem in COPD patients and also an independant predictor of survival in these patients. Many data are helpful for determining nutritional depletion, including anthropometric measurement, laboratory markers, body composition analysis (fat-free mass and lean mass), and body weight. The mechanism of nutritional depletion in patients with COPD is still uncertain. It may be associated with energy/metabolism imbalance, tissue hypoxia, systemic inflammation, and leptin/orexin disorders. In patients with nutritional depletion, growth hormone and testosterone can be used for nutritional therapy in addition to nutrition supplementation.
Body Composition
;
physiology
;
Humans
;
Intracellular Signaling Peptides and Proteins
;
blood
;
Leptin
;
blood
;
Lung Diseases, Obstructive
;
blood
;
complications
;
Neuropeptides
;
blood
;
Nutrition Assessment
;
Nutrition Disorders
;
diagnosis
;
etiology
;
Orexins
;
Weight Loss
;
physiology
9.Clinicopathological analysis of 34 cases of primary small intestine lymphoma
jun-liang, YAO ; xing-zhi, NI ; yan-ying, SHEN ; zi-zhen, ZHANG ; zi-li, XIAO
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(05):-
Objective To analyse the clinicopathological features of primary small intestine lymphoma(PSIL), and explore the relationship between clinical stage,histological findings,therapeutic modality and prognosis. Methods The clinical data of 34 cases of PSIL were collected,the pathohistological features and results of immunohistochemical examinations were obtained,and the follow-up findings were adopted for comprehensive analysis. Results Among these 34 cases of PSIL,abdominal pain or discomfort,gastrointestinal bleeding and abdominal mass were the predominant symptoms.PSIL mainly involved ileum,especially the bottom of ileum and ileocecal area.Among the 26 patients with follow-up for more than one year,the 1-year survival rate was significantly higher in patients without tumor perforation than those with tumor perforation(76.2% vs 20.0%)(P
10.Prognostic value of the ABCD2 score on long-term follow-up of transient ischemic attack using the new tissue-based definition
Chan-chan Li ; Tong Tong ; Yan-mei Yang ; Zhen-wei Yao ; Xiao-yuan
Neurology Asia 2015;20(1):15-21
The ABCD2
score is validated for evaluating short-term stroke risk after transient ischemic attack
(TIA); however, whether it is able to predict the long-term risk of vascular outcome remains uncertain.
Recently a new tissue-based definition of TIA has been proposed. The ABCD2
scores of 145 TIA
patients admitted to our hospital were retrospectively calculated and stratified into two categories:
≤ 3 points (low risk); 4-7 points (moderate-high risk). At a median follow-up of 81 months, new
vascular events were recorded. Follow-up data were available in 107 patients. Seventy one patients
had a moderate-high ABCD2
score. Sixty six patients experienced a cerebral ischemic event; 8 a
myocardial infarction; 7 died of cerebrovascular or cardiovascular cause. Moderate-high ABCD2
score
was significantly associated with the further cerebral ischemic events (hazard ratio [HR], 1.755; 95%
confidence interval [CI], 1.019 to 3.024) and with the combined endpoint (HR, 1.818; 95% CI, 1.079
to 3.063). Our study shows that the ABCD2
score may also be used to predict long-term vascular
outcome after tissue-based definition of TIA. Moderate-high ABCD2
score is associated with an
increased general vascular risk in the long-term follow-up after TIA.
Stroke