1.Recent advances in corneal stroma protein studies
Chinese Journal of Experimental Ophthalmology 2015;33(11):1043-1047
Cornea stroma mostly consists of proteins in extracellular matrix secreted by corneal epithelial cells,stroma and endothelial cells.A total of 1 679 unique Swiss-Prot annotated proteins are identified by LC-MS/MS analyses in human corneal stroma based on SDS-PAGE separation followed by in-gel trypsin digestion.As the principal component of corneal stroma, corneal stroma proteins play an important role in the physiological and pathological activities of eye.Studies towards their functions are helpful for revealing the pathogenesis of eye diseases and providing new ideas of prevention and therapy.Mainly through their manifestations,proteins in corneal stroma play a key role in forming gel-like organic material and network like structure of filaments.The gel-like organic material is composed of proteoglycan,enzymes,haemocyanin and binding proteins,while the network of filaments are constituted by collagen, elastin,keratin,vimentin as well as interconnected filaments made from fibronectin and laminin.The categories and functions of corneal stroma proteins were summarized.
2.A study on the relationship between endothelin-1 in plasma and TCD in patients with brain injury
Yawen PAN ; Dulun KANG ; Xuan MENG
Journal of Clinical Surgery 2001;0(01):-
Objective To study the relationship between endothel in-1 in plasma and TCD in patients with brain injury.Methods We measured dynamically the level of ET-1 in plasma on 33 adult brain injured patients. Cerebral vasospasm was detected by transcranal Doppler sonography (TCD).Results 1.During 6-8 days, 13-15 days after injury,there was a significantly positive correlation between the level of ET-1 in plasma and cerebral vasospasm (r=0.533,P=0.002;r=0.423,P=0.02),especially during 6-8 days after injury. The increase of the level of ET-1 in plasma paralleled paroled with the time of cerebral vasospasm developed. 2.During 6-8 days after injury, the level of ET-1 in plasma of patients with cerebral vasospasm was obviously higher than those without cerebral vasospasm obviously (P
3.Professor ZHOU Yun-xian's experience of acupuncture combined with Chinese material medica for xerophthalmia.
Xuan LIU ; Hong MENG ; Yun-xian ZHOU
Chinese Acupuncture & Moxibustion 2014;34(10):1005-1008
Professor ZHOU Yun-xian's clinical experience of acupuncture combined with Chinese material medica for xerophthalmia is introduced. Her treatment for xerophthalmia is firstly focused on syndrome differentiation, indicating that different syndrome has different treatment of acupuncture and Chinese material medica. It is emphasized that by following the holistic concept of TCM, the local acupoints and whole-body acupoints cooperate closely, forming her special combination method of acupoints. In clinic, attention is focused on the application of many acupuncture techniques and extra points. With the combination of acupuncture and Chinese material medica, the treatment is flexible with superior clinical efficacy.
Acupuncture Therapy
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Combined Modality Therapy
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Drugs, Chinese Herbal
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therapeutic use
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Female
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Humans
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Male
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Middle Aged
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Xerophthalmia
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drug therapy
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therapy
4.A meta-analysis of radiofrequency ablation for early hepatocelluar carcinoma
Xuan HUANG ; Bin Lü ; Lina MENG
Chinese Journal of Internal Medicine 2008;47(3):217-220
Objective To compare the effectiveness and safety of radiofrenquency ablation(RFA) with other therapeutic methods for patients with early hepatocelluar carcinoma(HCC). Methods Randomized clinical trials(RCTs)which compared the efficacy or safety of RFA with other therapeutic methods for primary hepatocellular carcinoma in Cochrane library,EMBASE,PubMed,OVID and CBM were searched.Trials were considered of high quality if methodological quality score was 3 or more according to Jadad standard.Statistical heterogeneity between trials was evaluated bv STATA 9.0 and considered to exist when P<0.1.Heterogeneity of the included articles was tested and used to select proper effective model for calculation.Sensitivity analysis was performed and publication bias was investigated through visual inspection of funnel plots and Egger regression model.Results Six RCTs including 862 cases were analyzed.As compared with other therapeutic approaches,RFA significandy increased 3-year overall survival rate and reduced local recurrence rate of early hepatocelluar carcinoma:the total OR were 2.06(95%CI being 1.54-2.77,P=0.000)and 0.40(95%CI being 0.28-0.57,P=0.000)respectively.As compared with other therapeutic approaches,the total OR of new HCC recurrence rates,extrahepatic metastasis rate and major complications in patients with HCC treated with RFA were 0.92 (95%CI being 0.68-1.24),0.98(95%CI being 0.30-3.22),1.35(95%CI being 0.49-3.77)respectively,showing no significant differences(P>0.05).Inspection of the funnel plots for all outcome measures did not reveal evidence of publication bias(P=0.670,0.160,0.884,0.087,0.317,respectively,by Egger regression model).Conclusions RFA is superior to other treatment methods with respect to local recurrence and 3 year overall survival in early HCC and is the preferred tberapeutic method for small HCC because it is minimally invasive,simple and convenient.
5.The clinical characters of tear film instability in diabetes patients
Meng, ZHAO ; Liu-he, ZOU ; Xuan, JIAO ; Xiao-yan, PENG
Chinese Journal of Experimental Ophthalmology 2011;29(11):1019-1022
Background The current epidemiology study had shown the prevalence of age and sex adjusted dry eye was higher in patients with diabetes than population without diabetes.Further researches demonstrated that the tear film disturbance is common after the phacoemulsification or photocoagulation in the eyes of diabetic patients.Objective The aim of this study was to characterize the clinical features of tear film instability in diabetes patients.Methods One hundred and sixty-two patients with tear-film abnormality referred to Tongren Eye Center from January 1,2010 to September 1,2010 underwent questionnaire about diabetes and other diseases,BUT,Schirmer test.Tear film instability was diagnosed as abnormality of either Schirmer test or BUT and showed as M ( Q25,Q75 ).The right eyes of 162 dry eye patients meeting with the including criteria were enrolled.The patients were assigned to two groups according to with ( 80 patients) or without ( 82 patients) diabetes mellitum.DEQ questionnaire were scored.The percentage of cases with meibomain gland abnormal score > 1 was calculated.Mann-Whitney U analysis and Chisquare analysis were used to compare the difference between the two groups.Results The Schirmer test in diabetic group was 8 ( qualities:5,9 )mm and was longer than 6 ( qualities:5,7 ) mm in non-diabetic patients ( U =2452,P =0.00).The result of BUT test was 3 ( qualities:2,4 ) seconds in diabetic patients and was shorter than 4 (qualities:3,5) seconds in non-diabetic patients( U=2104,P<0.01 ).The DEQ score of diabetic patients was 15 ( qualities:1 0,19,which was less than21 ( qualities:19,23.25 ) in non-diabetic patients.51.2 % ( 41/80 ) diabetic participants and 32.9% (27/82) nondiabetic participants appeared meibography ( grade larger than 1 ) (x2 =16.07,P=0.00).The percentages of dry eyes were 51.2% (41/80) and 93.9% (77/82) respectively in diabetes and nondiabetes groups(x2 =37.24,P<0.01 ).No significant correlation was found between the diabetes course and DEQ score or meibography( r =0.16,P =0.16 ; r =0.10,P =0.36 ).Conclusions Diabetes patients with tear film instability have longer Schirmer test results,shorter BUT,more severe meibomain glands damage and lower DEQ scores.The dry eye symptom is lack in the diabetic patients though appearing the tear film and meibomain glands damage.Therefore,more attention should be given to ocular surface health in diabetes patients.
6.Scientific Misconduct Encountered By APAME Journals: An Online Survey
Lai-Meng Looi ; Li Xuan Wong ; Cing Chai Koh
The Malaysian Journal of Pathology 2015;37(3):213-218
In June 2015, invitations were sent by email to 151 APAME journals to participate in an online
survey with an objective of gaining insight into the common publication misconduct encountered by
APAME editors. The survey, conducted through SurveyMonkey over a 20-day-period, comprised 10
questions with expansions to allow anecdotes limited to 400 characters, estimated to take less than
10 minutes to complete. Only one invitation was issued per journal, targeting (in order of priority)
editors, editorial board members and editorial staff, and limited by email availability. 54 (36%) journals
responded. 98% of respondents held Editor or Editorial Board positions. All respondent journals
have editorial policies on publication ethics and 96% provide instructions related to ethics. 45% use
anti-plagiarism software to screen manuscripts, the most popular being iThenticate, CrossCheck and
Turnitin. Up to 50% of journals had encountered studies without IRB approval. Author misconduct
encountered were (in rank order): plagiarism (75%), duplicate publication (58%), unjustified
authorship (39%), authorship disputes (33%), data falsification (29%), data/image manipulation
(27%), conflict of interest (25%), copyright violation (17%) and breach of confidentiality (10%).
Reviewer misconduct encountered were: conflict of interest (19%), plagiarism (17%), obstructive
behavior (17%), abusive language (13%) and breach of confidentiality (13%). Notwithstanding the
limitations of the survey and the response rate, a few insights have been gained: (1) the need for
strengthening the ethical culture of researchers/authors and reviewers, (2) anti-plagiarism software
can improve plagiarism detection by about 15%, and (3) the need for technical support to detect
plagiarism, duplicate publication and image manipulation.
7.Survey on Toxoplasma gondii infection among key populations in Wuxi City
Donglin GAO ; Xiaojun MENG ; Xuan ZHANG ; Yanhua QIAN ; Bing LU
Chinese Journal of Schistosomiasis Control 2017;29(3):352-354
Objective To investigate the prevalence and risk factors of Toxoplasma gondii infection among key populations in Wuxi City,Jiangsu Province,so as to provide evidences for developing preventive and control interventions for T. gondii in-fection. Methods A questionnaire was designed to conduct face-to-face interviews to HIV/AIDS carriers/patients,tumor pa-tients,pregnant women and pet breeders. The blood samples were collected to test anti-Toxoplasma IgM and IgG antibodies by using ELISA method. Results Totally 404 participants were investigated,and 38 were positive in testing T. gondii antibodies (9.4%),and among these,37(97.4%)were IgG positive and 1(2.6%)was IgM positive. The multivariate logistic regression indicated that age,regularly contacting cats/dogs and being HIV positive were associated with the infection of T. gondii(OR=2.1,2.6 and 2.3,all P < 0.05). Breeding pets,being HIV positive and being tumor patients were more likely to infect T. gondii than being pregnant(OR = 1.5,8.1 and 2.8,all P < 0.05). Conclusion The high infection rate of T. gondii is observed among key populations in Wuxi City,so that the effective measurements should be taken to enhance the intervention among key popula-tions including immunocompromised people,pet breeders or people having bad dietary habits of eating raw food.
8.Research in correlation of professional commitment and communication ability among nursing baccalaureate students in universities of Traditional Chinese Medicine
Yan LI ; Xuan ZHOU ; Shuxia TIAN ; Qi LI ; Fanjie MENG
Chinese Journal of Practical Nursing 2014;30(21):19-21
Objective To investigate the level of professional commitment of nursing baccalaureate students,and explore the relationship between the professional commitment and communication ability.Methods Questionnaires were used to investigate 430 nursing baccalaureate students who were studying in the school.Results The professional commitment of nursing students was in the middle level.Correlation analysis revealed that the communication ability was correlated with the professional commitment.Conclusions We should take measures to improve the competency of professional commitment of nursing undergraduate students,strengthen their communication ability,promote the construction of nursing staff.
9.Analysis and Determination of the Composition of Monosaccharide in Polysaccharide from Leaves and Twigs of Morus nigra from Xinjiang
Lian SUN ; Lei MENG ; Yan WANG ; Xuan ZHANG
China Pharmacy 2007;0(36):-
OBJECTIVE:To analyze and determine the compositions of monosaccharide in polysaccharide from leaves and twigs of Morus nigra from Xinjiang.METHODS:The polysaccharides in leaves and twigs of M.nigra were extracted by water and precipitated by ethanol then hydrolyzed into monosaccharide by using 2 mol?L-1 H2SO4.The monosaccharide was derivatized with 1-phenyl-3-methyl-5-pyrazolone(PMP) and determined by RP-HPLC. RESULTS:The polysaccharide in leaves and twigs of M.nigra were composed of mannose,rhamnose,glucuronic acid,galacturonic acid,glucose,galactose and arabinose etc. All the 7 monosaccharides were well-separated within 25 min. CONCLUSION:The method is simple and sensitive with accurate results,and it can be used for the quality control of leaves and twigs of M.nigra from Xinjiang.
10.Distribution of historical Oncomelania hupensis snail environments and wet-land environments in Wuxi City
Xiaojun MENG ; Donglin GAO ; Xuan ZHANG ; Bing LU
Chinese Journal of Schistosomiasis Control 2014;(5):547-549
Objective To understand the distribution and characteristics of historical Oncomelania hupensis snail environ-ments and wetland environments in Wuxi City since 1952 so as to provide the evidence for formulating the monitoring strategy after the schistosomiasis transmission was interrupted. Methods A cross-sectional survey was conducted to collect the informa-tion of historical O. hupensis snail environments and wetland environments. Google Earth was used to present and analyze the distribution and characteristics of them. Results There were 2 124 historical O. hupensis snail environments in Wuxi City and the accumulative area was 2 995.7 hm2. In 2013 there were 61 surveillance sites of wetland with the area of 32.8 hm2 totally 1 695 snails were caught and no O. hupensis snails were found. Conclusion The historical O. hupensis snail environments were distributed widely and covered a large area in Wuxi City. The surveillance should be focused on the key environments and wetland.