2.Epidemiological study on pathogens of deep fungal infection
Jun-Min ZHANG ; Li-Yan XI ; Chang-Ming LU ; Chun-Hong ZHOU ; Jun LI ; Xi-Qing LI ;
Chinese Journal of Laboratory Medicine 2001;0(01):-
Objective To investigate the dynamic distribution changes of fungi responsible for the deep infection and antifungal susceptibility to provide a basis for the empirical antifungal treatment.Methods Medical records were reviewed from cases suspectedof deep fungal infection at our hospital from January 1998 to December 2004.3122 isolates of 13 species were analyzed with SPSSll.0.Etest was used for the antifungal susceptibility test.Results Candida albicans was the most commonly isolated organism,while the prevalence of Candida albicans decreased(76.3% vs 66.8%,x~2=34.33,P
3.Acupuncture at Shangjuxu (ST37) to Inhibit Distention of Colon Induced Discharge Reaction of LC: an Experimental Study.
Qing-yan ZHU ; Hua WANG ; Ze-bing CHEN ; Xi-quan LIU ; Xin JIN
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(5):608-611
OBJECTIVETo study possible mechanisms of Shangjuxu (ST37) and the large intestine.
METHODSTotally 40 SD rats were selected. The distension of end colon was used as injured afferent stimulus. Activities of locus coeruleus (LC) neurons were recorded by extracellular microelectrode technique. Shangjuxu (ST37) and Hegu (L14) were needled to observe general features of discharge reactions, distention of colon induced discharge reactions of LC, and its effects on distention of colon induced discharge reactions of LC.
RESULTSDistention of colon could induce incrased discharge of LC neurons by 127.33% ± 45.48%. But needling at Shangjuxu (ST37) and Hegu (L14) could inhibit this injured response by 38.24% ± 7.69% and 21.29% ± 13.16% respectively (all P < 0.01).
CONCLUSIONSNeedling at Shangjuxu (ST37) and afferent signals of colon distension converged and interacted with each other. Needling at Shangjuxu (ST37) could significantly inhibit colon distension induced discharge of LC neurons, which might be one of mechanisms for Shangjuxu (ST37) and the large intestine relationship.
Acupuncture Therapy ; Animals ; Colon ; Intestine, Large ; Locus Coeruleus ; physiology ; Neurons ; Rats ; Rats, Sprague-Dawley
4.Galectin-1 expression in human colorectal carcinoma and its clinical significance.
Xi-ling ZHU ; Li LIANG ; Yan-qing DING
Journal of Southern Medical University 2007;27(9):1331-1334
OBJECTIVETo investigate the correlation between galectin-1 expression and the biological behaviors of human colorectal carcinoma.
METHODSSP immunohistochemistry was used to detect the expression of galectin-1 in 158 paraffin-embedded specimens including 30 normal mucosa, 25 adenoma, 65 colorectal carcinoma and 38 metastatic tumor specimens. Real-time RT-PCR was used to detect galectin-1 mRNA expression in 32 fresh specimens of colorectal carcinoma and normal mucosa.
RESULTSThe positive expression level of galectin-1 was significantly different between normal mucosa, adenoma, colorectal carcinomas and metastatic tumors, with positivity rate of 0, 8%, 66% and 86%, respectively (P<0.05). Galectin-1 expression in moderately or well differentiated colorectal carcinomas was significantly lower than that in poorly differentiated ones (P=0.031), and its expression in invasive carcinomas was significantly higher than that in non-invasive carcinomas (P=0.000). Galectin-1 expression in colorectal carcinomas was significantly related with lymph node metastasis (P=0.004). In poorly differentiated colorectal carcinomas, the expression of galectin-1 mRNA was about 2.27 times that in moderately or well differentiated colorectal carcinomas (P=0.00); galectin-1 mRNA expression in invasive carcinoma was 1.98 times that in non-invasive carcinoma (P=0.002). In tumors with lymph node metastasis, galectin-1 mRNA expression was 1.42 times that in tumors without metastasis (P=0.018).
CONCLUSIONGalectin-1 can be involved in the development and progression of colorectal carcinoma, and may relate to the infiltration, differentiation and lymph node metastasis of colorectal carcinoma.
Colorectal Neoplasms ; genetics ; pathology ; Galectin 1 ; genetics ; metabolism ; Gene Expression Regulation, Neoplastic ; Humans ; Immunohistochemistry ; Intestinal Mucosa ; cytology ; metabolism ; pathology ; Neoplasm Invasiveness ; Neoplasm Metastasis ; genetics ; Polymerase Chain Reaction ; RNA, Messenger ; genetics ; metabolism
5.Tongue base surgery with front neck access and uvulopalatopharyngoplasty for treatment of severe obstructive sleep apnea-hypopnea syndrome.
Qing-Quan ZHANG ; Xi-Cheng SONG ; Tian-Zhen ZHANG ; Yan SUN ; Hua ZHANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(9):704-705
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Middle Aged
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Otorhinolaryngologic Surgical Procedures
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Sleep Apnea, Obstructive
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Tongue
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6.Suppression of corneal neovascularization by culture supernatant of human amniotic epithelial cells in vitro
Bin-bin, LI ; Xiao-xi, YANG ; Qing, ZHOU ; Yan-hua, HE ; Jian, CHEN
Chinese Journal of Experimental Ophthalmology 2012;30(5):408-413
BackgroundCorneal neovascularization (CNV) is a common eye disease.The researches on the pathogenesis and treatment of CNV are focus in Ophthalmology.ObjectiveThis study was to investigate the effects of culture supernatant from human amniotic epithelial cells (AECs) on CNV in vitro and its mechanism.MethodsHuman AECs were obtained from a placenta and cultured in serum-free medium for 48 hours,and the supernatant was collected.The levels of interleukin-1 receptor antagonist (IL-1 Ra) and pigment epithelium-derived factor (PEDF) in the human AECs culture supernatant were detected by enzyme-linked immunosorbent assay (ELISA).Rabbit corneal epithelial cells (CECs) were obtained and cultured in different concentrations of human AECs culture supernatant for 48 hours,serum-free medium was used as the control group.The expression of vascular endothelial growth factor (VEGF) mRNA and basic fibroblast growth factor (bFGF) mRNA in rabbit CECs were measured by quantitative real-time PCR (QRT-PCR).Human umbilical cord vein endothelial cells (UVECs) were cultured in the three mediums above,and the proliferation of human UVECs (absorbance value,A value) was tested by the cell counting kit 8 ( CCK8 ).Migration assay was performed by the wound healing method for the human UVECs.The membrane ultra-structure of human UVECs was examined under the atomic force microscope (AFM).ResultsCultured and passaged human AECs showed a positive response for keratin.The expression of VEGF mRNA (1.00±0.22) and bFGF mRNA (1.00±0.36) in rabbit CECs was suppressed by the human AECs culture supernatant,with a significant reduction in comparison with the serum-free DMEM group (2.98±0.46,2.55±0.48 )(P=0.001,0.002).The A value was significantly lowered in the human AECs culture group for 72 hours compared with the serum-free DMEM group ( 1.941 ± 0.036 versus 2.144 ± 0.059 ) ( P =0.000 ),and the bFGF-induced migration rate of human UVECs was strongly inhibited by the culture supernatant of human AECs in comparison with serum-free DMEM.The plasma membrane of human UVECs cultured with the human AECs culture supernatant was full of bumps,and decreased intercellular connection and cellular pseudopodia were found on the AFM image.The concentration of IL-1Ra was (153.56±0.36)ng/L and that of PEDF was (70.41 ±0.68 )μ,g/L in the human AECs culture supernatant.Nothing was deteched in serum-free DMEM group.Conclusions Human AECs culture supernatant suppressed the expression of VEGF and bFGF in CECs as well as the migration and proliferation of vascular endothelial cells.The effect may be associated with IL-1Ra and PEDF secreted by human AECs.These results suggest that human AECs may be a potential therapy for the inhibition of CNV.
7.Prevalence of myopia among primary school students in mainland China:a Meta-analysis
Xi-Qing, XU ; Shun-Ping, LI ; Yan-Jiao, XU ; Jie, WEI
International Eye Science 2016;16(7):1221-1227
AIM: To estimate the pooled prevalence of myopia among primary school students in mainland China during 1980- 2013. Myopia had become a growing public health issue, with high prevalence rates in mainland China, particularly among children. However, we still had no population-based nationwide studies of the prevalence of myopia among primary school students in recent years. METHODS: Wanfang, Chinese National Knowledge Infrastructure and PubMed databases were searched independently until Dec. 31, 2013 to identify relevant articles. Data from the eligible articles were extracted by two reviewers. All of the data analyses were conducted using Meta-Analyst software (version 3. 13, USA).
RESULTS: Thirty - seven eligible studies published between 1980 and 2013 were selected with a total of 245248 individuals. The pooled prevalence of myopia among the included individuals was 26. 5% (95% CI: 21. 8% -31. 7%). The prevalence of myopia increased with age (from 8. 4%at 6-8y to 57. 4% at 12-14y).
CONCLUSION: The pooled prevalence of myopia among primary school students in mainland China was much higher than that of western countries or regions. The prevalence of myopia increased with age among primary school students. This study should be valuable for myopia prevention and treatment in mainland China.
8.Clinical analysis of primary percutaneous coronary intervention in patients with acute myocardial infarction
Guo-Zhong YU ; Qing-Lian LU ; Yan-Sheng GE ; Ji-Han CHEN ; Hong-Xi CHEN ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(08):-
Objective To report the clinical effect of primary percutaneous coronary intervention(PCI)in patients with acute myocardial infarction(AMI).Methods A retrospective study was accomplished on the clinical data of 13 AMI patients who underwent PCI from March 2004 to April 2006.Results The infarct-related artery (IRA)was successfully recanalized by primary PCI for 12 AMI patients,without major complications occurred in these cases during hospitalization.Conclusion Primary PCI should be firstly chosen for treatment of AMI in the hospitals which could carry out PCI.
9.Applied study of voice function rehabilitation by mucosa tube performed in operation of late laryngocarcinoma
Xi-Zheng SHAN ; Yan-Lin CHEN ; Xiao-Qing JIA
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2009;44(11):918-920
Objective To study the voice function rehabilitation by mucosa tube performed in operation of late laryngocarcinoma and to improve the survival quality of patients with Iate laryngocarcinoma.Methods Forty-six patients were treated between Oct.1991 and May 2006,including 4l males and 5females.The average age of the patients Wa8 54.Seventeen cases were glottic carcinomas(T3 NOM0 12,T3NIM0 5),27 cases were supraglottic carcinomas(T3N1M0 16,T4N1M0 5,T3N0M0 6),2 cases were pyriform sinus cancer(T4NlM0 2).For those patients with late laryngocarcinoma, who had lost the chance of partial laryngectomy, mucosa tube shaping during the operation could realize voice functional rehabilitation. Only the survive arytenoids of healthy side was preserved, in order to rehabilitate voice, amucosa tube Was sutured using healthy survive arytenoids and a mucosa strip Was connected to the trachea and the mucosa of hypopharynx. Survival analysis was performed by using Kaplan-Meier method. Results Forty-one out of 46 patients obtained almost normal voice and swallow function. The 5-years survival was76%.Conclusions The operation of voice function rehabilitation by mucosa tube performed can get good voice and swallow function to patients with late laryngo carcinoma.
10.A family-based transmission disequilibrium test of polymorphisms of endothelial nitric oxide synthase gene in children with orthostatic intolerance.
Zhen-Yu XIONG ; Zi-Yan HAN ; Zhen-Hui HAN ; Xi ZHANG ; Xi-Qing GAO ; Yong GAI ; Jie LIAN
Chinese Journal of Contemporary Pediatrics 2012;14(12):960-963
OBJECTIVERecent studies have found that the variation of G894T on the region of T786C and 7th exon promoted by endothelial nitric oxide synthase (eNOS) gene is associated with cardiovascular disease. This research explored possible correlations between eNOS gene polymorphisms and orthostatic intolerance (OI) in children through linkage disequilibrium analysis between eNOS genes T786C and G894T and OI.
METHODSPCR, Macrorestriction Map and other molecular biotechnology were used to determine the genotypes of eNOS/T786C and G894T in 60 OI probands and their parents. Correlation analysis and transmission disequilibrium test (TDT) between T786C, G894T and OI were performed.
RESULTSThere was linkage disequilibrium of eNOS/T786C and G894T gene polymorphisms in the occurrence of childhood OI (P<0.05).
CONCLUSIONSeNOS genes T786C and G894T may be associated with the pathogenesis of OI.
Adult ; Child ; Female ; Humans ; Linkage Disequilibrium ; Male ; Nitric Oxide Synthase Type III ; genetics ; Orthostatic Intolerance ; genetics ; Polymorphism, Genetic