1.Focusing on the role of conjunctiva goblet cell in maintaining the health of ocular surface
Chinese Journal of Experimental Ophthalmology 2017;35(2):97-101
Ocular surface tissues are vulnerable to various stimuli from the external environment,including microbial invasion,mechanical damage,chemical stimulation,dust,UV light,and allergen stimulation.Conjunctival goblet cells play an important role in maintaining ocular surface self-homeostasis and health.These cells are the only unicellular glands in humans and mammals that are mainly distributed in the epithelium of the digestive tract,respiratory tract,and the ocular surface.Many factors affect goblet cell development and differentiation,especially the newly discovered molecule Spdef,which is a transcription factor found in the ETS family.The main function of conjunctival goblet cells is to secrete mucin to protect and lubricate the ocular surface;however,they also secrete a variety of other bioactive substances.Recent studies have demonstrated that goblet cells are involved in antigen presentation,regulation of dendritic cell phenotype differentiation,and induction of immune tolerance on the mucosa.Many ocular surface diseases,such as dry eye,will alter density and function of conjunctival goblet cells.Therefore,ophthalmologists should be concerned about the biological behavior of conjunctival goblet cells and the relationship between them and ocular surface diseases.
2.Correlated factors of pneumonia in the hospital in patients with neoplasm after chemotherapy
Yan LI ; Guiyue GUO ; Changjun LIU
China Oncology 2001;11(2):155-156
Purpose:To study the incidence of pneumonia, pathogenic bacteria and prognosis in patients with neoplasm after chemotherapy.Methods:Sputum culture was made by routine method. Then,to determine the kinds of bacteria bioMrieux ATB expression was used, and general drug-sensitivity test was done by Kirby-Bautr method.Results:Fever occured in 27.3% patients after chemotherapy, while pneumonia in 11.3% patients. 13 kinds of bacteria, 72 strains of bacteria and 2 kinds of fungi were found in 68 positive culture samples. The infection rates were 76.5% in infection of single bacteoia,23.5% in infection of two kinds of bacteria and 22.1% in bacteria with fungi. The infection rate of gram-negative bacteria is much higher than that of gram-positive ones (P<0.01).Conclusions:The incidence of pneumonia in the hospital is higher in patients with neoplasm after chemotherapy. Most pathogenic bacteria are gram-negative and sensitive to aminoglycosides, piperacillin and norfloxacin.
3.The value of BAEF in early diagnosis of acute bilirubin encephalopathy in newborn
Changjun REN ; Li WAN ; Ran LI ; Lei ZHANG ; Ling HAO
The Journal of Practical Medicine 2014;(4):563-565
Objective Acute bilirubin encephalopathy in neonates is the most serious complication of neonatal hyperbilirubinemia, is one of the main causes of neonatal death and disability. Clinical early diagnosis, early treatment can improve the prognosis in children. Methods Brainstem auditory evoked potential (BAEF) was detected on two patients (40 patients with ABE, 40 cases of normal controls, all full-term) in the state of sleep in children and analysis the difference between the two groups ,all testing was completed by experienced Department of ENT full-time technician in charge,SPSS15.0 statistical analysis software was took for data analysis (using rank sum test method). Results There was significant difference between the two groups of neonatal latency of wave I, latency of waveⅤ, interpeak time , acute bilirubinⅠ-Ⅴencephalopathy group was significantly longer than that of the control group. Conclusions The BAEF detection is the sensitive index of brainstem damage , can objectively and sensitively reflect the function of the central nervous system , can reflect the functional status of cochlear and brainstem structures , often brainstem was slightly damaged but no clinical symptoms and signs , BAEP has changed significantly , so the conventional BAEP examination performed on patients with hyperbilirubinemia help to find bilirubin brain damage as early as possible,and prevent the occurrence of bilirubin encephalopathy.
4.The effect of cytokines on endothelial progenitor cells during angiogenesis
Jinhai LI ; Chengjin LI ; Changjun CHEN ; Lie WANG
International Journal of Surgery 2010;37(10):684-687
Endothelial progenitor cells play a significant role in neovascularization of ischemic tissues and in reendothelialization of damaged blood vessels. Cytokines, an important components of micro-environment of angiogenesis,play an important role in regulation of endothelial progenitor cells. The effective application of cytokines can significantly argument the number, enhance the biological function and improve the therapeutic effect of endothelial progenitor cells, which play a positive role in regulation of endothelial progenitor cells.This article briefly reviewed the regulating mechanisms of the vascular endothelial growth factor and other cytokines in a total of 7 endothelial progenitor cells.
5.The study of classification for breast solid nodular lesions using an ultrasonographic characteristic diagnostic score system
Li LI ; Changjun WU ; Qianyi QIU ; Chunmei ZHANG ; Miao ZHENG
Chinese Journal of Ultrasonography 2008;17(10):883-886
Objective To study the accuracy of an ultrasonographic characteristic diagnostic score system(UCDSS) which was used to classify the breast solid nodular lesions. Methods UCDSS were established by analyzing the ultrasonographic sign of the 205 breast solid nodular lesions. These lesions were classified according to the total scores of each ultrasonographie sign. ROC curve was used to evaluate the value of UCDSS. Results The area under ROC curve of UCDSS was 0. 977, the sensitivity and specificity was 92.0%, 92.3% respectively. Conclusions The classification based on the UCDSS may increase the diagnostic accuracy of the differentiation between benign and malignant breast solid nodular lesions.
6.EXPRESSION OF Fos PROTEIN IN RAT BRAINS FOLLOWING RESTRAINT STRESS
Changjun SU ; Li DUAN ; Zhiren RAO ; Zhuyi LI ; Hon LIN
Acta Anatomica Sinica 1954;0(02):-
Objective To investigate expression of Fos protein in rat brains following restraint stress. Methods The experimental rats were restrained in a small plastic tub for,1,3 and 6 hours,and were sacrificed at 30 min after removing restraint.Immunohistochemical ABC method was used to observe distribution of Fos protein-like immunoreactive(-LI)products in rats brain.Results Fos-LI neurons appeared in (1)Frontal brain:the cingulum,cortex(especially in third and fifth layer),lateral septal nucleus,central amygdaloid nucleus.(2)Diencephalon:the thalamic paraventricular nucleus,lateral geniculate body and medial genicular body,hypothalamic paraventricular nucleus,supraoptic nucleus,periventricular area of third ventricle,arcuate nucleus.(3)Brain stem:the superficial layer of superior colliculus,periaqueductal gray,cortical area of inferior colliculus,lateral parabrachial nucleus,locus coeruleus,A5 area,cochlear nuclei,medullary viceral zone in medulla oblongata.The expression of Fos-LI neurons peaked in rats restrained for 1h,at 3h,then began to decrease,at 6h,significantly decreased. Conclusion Fos-LI neurons appeared in many areas of brain induced with restraint stress.The number of Fos-LI neurons decreased following restraint time.
7.Effect of recombinant adenoviruses with CD/TK fusion suicide gene on human hepatocellular carcinoma cells
Changjun WANG ; Jianjun LI ; Xiaomin WEN ; Li DENG
Journal of Integrative Medicine 2004;2(1):42-5
OBJECTIVE: To investigate gene-therapy for human hepatocellular carcinoma with adenovirus vectors by double suicide gene CD/TK. METHODS: Double suicide gene CD/TK was liberated from eukaryotic vectors pCEA-CD/TK and subcloned into shuttle vectors, and the transfer plasmid pAdtrack-CMV-CD/TK was formed after linearizing with Pac 1. It was recombinated with pAdeasy-1 in bacteria BJ5183. The identified adenovirus plasmid was digested by Pac1 and was transfected into 293 cells to pack the adenoviruses. After PCR determination, its titre was measured, and the infection rate and efficacy were tested in human hepatocellular carcinoma cells. RESULTS: pAdtrack-CMV-CD/TK and pAd-CD/TK were tested by endonuclease digestion. Ad-CD/TK was produced in 293 cells, and the human hepatocellular carcinoma cells (SMMC7721) infected by Ad-CD/TK were killed after 5-FC was used, and bystander effects were observed. CONCLUSION: Recombinant adenoviruses with CD/TK fusion suicide gene have a high infection rate and efficacy for human hepatocellular carcinoma cells.
8.The influence of multi-disciplinary cooperation and optimized management mode on the negative situation and rehabilitation effect of patients with affective disorder after coronary heart disease and cerebrovascular disease
Shenlin WANG ; Shenfang WANG ; Changjun LI ; Tianyang ZHANG ; Xi RAN
Chinese Journal of Practical Nursing 2021;37(1):31-37
Objective:To observe the influence of multi-disciplinary cooperation and optimization management mode on the negative situation and rehabilitation effect of patients with affective disorder after coronary heart disease and cerebrovascular disease.Methods:A total of 188 patients with emotional disorders caused by coronary heart disease and cerebrovascular disease from January 2017 to December 2018 to our hospital were selected. According to the random number method, 94 cases in the control group adopted the conventional management model, and 94 cases in the experimental group adopted the multidisciplinary collaborative optimization management model. The negative emotions [evaluated by Self-rating Anxiety Scale (SAS), Self-rating Depression Scale(SDS) ] scores before and after management, the coping style (Jalowies) scores, and quality of life [evaluated by World Health Organization Quality of Life-Brief (WHOQOL-BREF) ] scores were compared between the two groups. The clinical rehabilitation effect and satisfaction rate of related management between the two groups were compared.Results:There were no significant differences between the two groups before management of SAS scores, SDS scores, Jalowies scores, and WHOQOL-BREF quality of life scores ( P> 0.05). After management, the SAS scores and SDS scores of the two groups were significantly reduced, and the Jalowies scores and WHOQOL-BREF quality of life scores were significantly increased. After management, the SAS score and SDS score of the experimental group were 47.32±5.68, 49.93±6.49 and 54.95±6.59, 55.33±8.30 in the control group, the difference was significant between two groups ( t value was 8.503, 4.969, P<0.01). The Jalowies scores and WHOQOL-BREF scores of the experimental group were higher than those of the control group ( t value was -27.662--4.290, P<0.01). The total effective rate of rehabilitation in the experimental group was 98.94%(93/94), which was significantly higher than 90.43%(85/94) in the control group, the difference was statistically significant ( χ2 value was 6.760, P <0.05). The total satisfaction rate of the experimental group for management intervention was 100.00%(94/94), which was significantly higher than the total satisfaction rate of the control group, 91.49%(86/94), the difference was statistically significant ( χ2 value was 6.397, P <0.05). Conclusions:In the patients with affective disorder caused by coronary heart disease and cerebrovascular disease, multi-disciplinary cooperation and optimization management mode can significantly reduce the negative emotions of patients after management, improve the way of patients to deal with the disease, effectively improve the clinical rehabilitation effect and the quality of life of patients, improve the satisfaction rate of patients with management, shorten the distance between nurses and patients, and achieve ideal results.
9.Effect of Foot Motor Imagery on Lower Extremity Motor Function in Hemiplegics after Stroke
Minghui YIN ; Bo LI ; Changjun MENG ; Jingzhen ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2009;15(7):660-661
Objective To study the effect of foot motor imagery on lower extremity motor function in hemiplegics after stroke. Methods 72 hemiplegics were randomly divided into two groups: the experiment group and the control group. Normal rehabilitation was performed in the both groups and motor imagery was added in the experiment group. They were assessed with lower extremity Fugl-Meyer Assessment (FMA) and gait analysis. Results The scores of FMA in knee, ankle and lower extremity, gait frequency and speed improved in experiment group more than in controls(P<0.05). Conclusion Foot motor imagery can improve lower extremity motor function.
10.Expression and significance of miR-26a in intrahepatic cholangiocarcinoma
Changjun HUANG ; Yuan TIAN ; Dong WANG ; Sheng HAN ; Xiangcheng LI
Chinese Journal of Hepatobiliary Surgery 2013;19(12):898-903
Objective To study the expression and significance of miR-26a in intrahepatic cholangiocarcinoma.Methods The expression of miR-26a in 46 intrahepatic cholangiocarcinoma(ICC) tissues and peritumoral tissues was detected by quantitative real time polymerase chain reaction (qRT PCR).The intrahepatic eholangiocarcinoma cell line HCCC-9810 and RBE were transfected with miR 26a mimics and miR 26a inhibitors,respectively,by lipofectamine 2000.The growth curves were constructed by the CCK 8 method.The migration and invasion ability was demonstrated by wound healing and transwell assay.The cell cycle was analyzed by flow cytometry.The potential mechanism was illustrated by Western blotting.Results For the 46 ICC tissues and peritumoral tissues,miR 26a levels were significantly higher in the tumor tissues than in the peritumoral tissues (P<0.05).Vascular invasion,TNM Ⅲ~Ⅳ stage and lymph node metastasis were significantly associated with high miR 26a expression levels (P<0.05),but gender,age,tumor amounts,tumor encapsulation,tumor diameter and tumor differentiation showed no significant association (P>0.05).Enhanced cell proliferation,migration and invasion ability,accelerated G0/G1 phase to S phase transition,activated AKT by PTEN suppression were observed in HCCC-9810 cells with up regulation of miR-26a.Conversely,cell proliferation,migration and invasion ability was inhibited,G0/G1 phase was blocked and AKT was restrained by PTEN increase wkh down regulation of miR-26a in RBE cells.PTEN mRNA in versely correlated with the miR-26a level (r=-0.8272,P<0.01).Patients with a high miR-26a expression had significantly poorer overall survival (P<0.05).A high miR 26a exprcssion,multiple tumors and lymph node metastasis were independent prognostic factors of overall survival (P<0.01).Conclusion Overexpression of miR-26a in intrahepatic cholangiocarcinoma correlated with clinicopath ological features and overall survival,and it potentially promoted tumor proliferation and metastasis through the PTEN/AKT pathway.