1.Study on MR Imaging of Gliomas Treated by Gamma Knife( An Analysis of 106 Cases )
Yihong GUO ; Xibiao WU ; Yong HE
Journal of Practical Radiology 2001;0(05):-
Objective To evaluate the effectiveness of gamma knife and radioactive effect for glioma.Methods MR images of 106 cases with glioma treated by gamma knife were analysed based on classified.Results The effectiveness of gamma knife was the best for ependyoma and oligodendroglioma,the secondly for astocytoma (Ⅰ~Ⅱ) .The effectiveness for astrocytoma( Ⅲ~Ⅳ)was not well.The effective rate in 1 year after treament for astocytoma(Ⅰ~Ⅱ)was far higher than 2~3 years later.The 2nd year after treatment was the peak time for edema around tumor and the special radioactive contrast enhancement on MR.Conclusion Gamma knife is a effective therapy for glioma,especially for ependyoma,oligodendroglioma and astocytoma(Ⅰ~Ⅱ).The radioactive effect showed as edema and radioactive contrast enhancement on MR can become smaller or disappear 2 years later after treament.
2.Clinical application of ultrasonic scalpel in treatment of tongue base benign tumor under multifunctional suspension micro-laryngoscope.
Yihong WANG ; Zhaojun QIN ; Wenying WU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(16):1256-1257
Adult
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Aged
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Aged, 80 and over
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Female
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Humans
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Laryngoscopy
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Male
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Microsurgery
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Middle Aged
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Tongue Neoplasms
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surgery
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Treatment Outcome
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Ultrasonics
3.Bifidobacterium: Re-evaluation from Microecological Point of View
Yihong CHEN ; Jing ZHANG ; Di WU ; Bo WANG ; Xuemei QU
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To re-evaluate Bifidobacterium from microecological point of view. METHODS With the development of microecology,it is paid more and more attention to the medical field.The genesis and development of diseases were closely related with microbe imbalance.As a kind of common microbial population in intestinal tract,Bifidobacterium are one of the most important sources for the exploitation of microecological preparation.Bifidobacterium were re-evaluated by the reference review method. RESULTS This review is focused on the current situation,bioactivity,clinical application,and prospective of Bifidobacterium. CONCLUSIONS Bifidobacterium have good application prospects.
4.Synthesis of ATP-competitive inhibitor Wye-125132
Xiang LUO ; Shuang CAO ; Yihong YANG ; Wu ZHONG
Military Medical Sciences 2016;40(8):643-645,685
Objective To synthesize Wye-125132,an inhibitor of mTOR,and to establish a synthetic route for industrial production.Methods Barbituric acid was used as the raw material to synthesize the intermediate 2, 4, 6-trichrolo-pyrimidine-5-carbaldehyde 2 via Vilsmeier-Haack and chlorination reaction, while intermediate 5 was prepared via 3-step reaction from 1,4-dioxaspiro-[4,5]decan-8-one.The condensation of 2 and 5 was followed by substitution reaction to obtain the key intermediate 7.The side chain 9 was prepared by 3-step reaction from bromine aniline.Then the title product 1 was obtained with the reaction of Suzuki cross-coupling of 7 and 9.The structures of intermediate and target compounds were confirmed by MS and 1 H-NMR.Results and Conclusion Compared with the method reported in the literature,this new synthesis method possesses some advantages, such as ready availablity of raw materials, simple operation, mild reaction conditions and easy disposal of products.The total yield is 13.2%,and the purity of the target compound is 99.77%.
5.Determination of metabolite of nicergoline in human plasma by high-performance liquid chromatography and its application in pharmacokinetic studies
Rong ZHENG ; Yihong WU ; Dexi JIANG ; Dan ZHANG
Journal of Pharmaceutical Analysis 2012;02(1):62-66
A fast,simple and sensitive high performance liquid chromatographic (HPLC) method has been developed for determination of 10α-methoxy-6-methyl ergoline-8β-methanol (MDL,a main metabolite of nicergoline) in human plasma.One-step liquid-liquid extraction (LLE) with diethyl ether was employed as the sample preparation method.Tizanidine hydrochloride was selected as the internal standard (IS).Analysis was carried out on a Diamonsil ODS column (150 mm × 4.6 mm,5 μm) using acetonitrile-ammonium acetate (0.1 mol/L) (15/85,v/v) as mobile phase at detection wavelength of 224 nm.The calibration curves were linear over the range of 2.288-73.2 ng/mL with a lower limit of quantitation (LLOQ) of 2.288 ng/mL.The intra- and inter-day precision values were below 13% and the recoveries were from 74.47% to 83.20% at three qtality control levels.The method herein described was successfully applied in a randomized crossover bioequivalence study of two different nicergoline preparations after administration of 30 mg in 20 healthy volunteers.
6.Protection of gastric mucosa against aspirin-induced damage by teprenone
Wu YE ; Wen FENG ; Yihong FAN ; Bing Lü
Chinese Journal of Digestion 2012;32(6):404-407
Objective To investigate the protection effects of teprenone in aspirin-induced gastric mucosa injury.Methods From 2008 to 2010,a total of 296 patients who took aspirin for the first time at the Department of Cardiovascular,First Hospital Affiliated to Zhejiang Chinese Medicine University were randomly divided into two groups.There were 166 cases in aspirin group,which took aspirin 100mg daily; 130 cases in aspirin and teprenone group,the aspirin dose equivalent with aspirin group and took teprenone 50mg/time,3 times/day orally.Gastrointestinal symptoms and gastric mucosa injury of patients in these two group were inspected at 3 month,6 month and 1 year.Results A total of 143 cases were recruited in aspirin group and 118 cases in aspirin and teprenone group.After taking medicine for 3 months,the occurrence rate of gastrointestinal symptoms in aspirin group was 1.40 %.Compared with aspirin and teprenone group,the difference was statistical significant (0,x2 =1.663,P= 0.197).Follow up after taking medicine for 6 months,the occurrence rate of gastrointestinal symptoms in aspirin group was 4.96%.Compared with aspirin and teprenone group,the difference was statistical significant (0,x2 =6.021,P=0.014).Follow up after taking medicine for 1 year,the occurrence rate of gastrointestinal symptoms in aspirin group was 20.15 %.Compared with aspirin and teprenone group,the difference was statistical significant (1.69%,x2 =20.984,P=0.001).Compared with aspirin group,the symptom and endoscopy score of aspirin and teprenone group decreased significantly at follow-up for 6 months and 1 year (P<0.05; P<0.01 ).Compared with at 6 month,the symptom and endoscopy score of aspirin group at 1 year increased significantly (P<0.05 ; P<0.01).Conclusion Teprenone has certain protection effects in aspirin-induced gastric mucosa injury.Long-term use of conventional doses of aspirin may cause vary degrees of gastric mucosal injury,and the gastric mucosal injury get more severe as the time of taking medicine increases.
7.Humanistic spirit cultivation of the medical students during the clinical internship
Yajun QIAO ; Heqing HUANG ; Kangning CHEN ; Yihong WU ; Zhenhua ZHOU
Chinese Journal of Medical Education Research 2012;11(1):93-95
The clinical internship is an important transitional period for humanistic spirit cultivation of the medical students.But in this period there are some problems exposed.For example,there is the lack of transitional link in management; the clinical instruction doctors lack educational consciousness or guidance ability,the medical students pay little attention to enhancing the individual humanistic spirit level and there is a gap between theory and practice of humanistic spirit for them.Strengthening training for students,attaching importance to training,selection and incentive of clinical instruction doctors and revising handbook of clinical internship will help to solve the problems.
8.Prevalence of hyperlipidaemia among 30~59 year-old rural residents in Changzhou:a cross-sectional study
Xun ZHANG ; Fuping WANG ; Jianfang WU ; Yihong ZHOU
Chinese Journal of Disease Control & Prevention 2009;0(03):-
Objective To study the status of prevalence of hyperlipidaemia among rural residents aged from 30 to 59 in Changzhou and provide evidence for taking prevention measures.Methods By the means of the cluster random sampling,a questionnaire survey and medical examination were conducted among 10 018 permanent residents in rural areas of Changzhou.The fasting plasma cholesterin(TC),triglycerides(TG),high density lipoprotein-C(HDL-C) were measured.Age-standardized prevalence rates were calculated by using the direct standardization method according to 2000 China population census.Results The prevalence of hyperlipidaemia of this population was 32.3%,the age-standardized prevalence was 31.3%,and the prevalence among men was significantly higher than women(P
9.Synthesis of phacolysin
Xuan BIE ; Heng ZHANG ; Yihong YANG ; Shuang CAO ; Wei WU
Military Medical Sciences 2017;41(4):291-294
Objectve To optimize the synthesis process of phacolysin 1 for industrial production.Methods Phacolysin as the target product was synthesized with a total yield of 40.7% by condensation reaction of O-phenylenediamine and sulfonation reaction.The yield reported in literature was 24.8%.Results Such factors as the ratio of the raw materials,the catalyst,and the reaction time were inveatigated and optimized to make the reaction conditions mild and easy to control with less side effect.Conclusion The structure is confirmed by 1HNMR and MS,and the optimized process is more suitable for industrial production.
10.Genetic analysis of Echovirus 11 isolated from patients with viral encephalitis in Longyan, China.
Qianjin CHEN ; Chunyuan CAO ; Yanfeng ZHANG ; Chunrong HE ; Zhaofu LUO ; Yun HE ; Yihong LIAO ; Shuixin WU
Chinese Journal of Virology 2015;31(1):36-41
This study aimed to analyse the genetically characterize isolates of Echovirus 11 from Longyan City,Fujian Province,and to reveal their genetic relationships with other isolates from China and abroad. Cerebrospinal fluid specimens from patients diagnosed with viral encephalitis or central nervous system (CNS) infections were collected from Longyan First Hospital between January and December 2011. Seven Echo11 strains were isolated and identified using the RIMV serum panel. The entire VP1 coding regions of four strains were sequenced and typed as Echo11 by an online blast program and,subsequently, phylogenet- ic analyses of the VP1 sequences of these stains and others published on GenBank were conducted. There were 600 nucleotides (nt) in each complete VP1 coding region that encoded 200 amino acids (aa). Among those four Echo11 strains, the sequence identities of nt and aa were 100% and 99%-100% respectively. And phylogenetic analyses indicate belong to subtype DS, the homology compared with DS strain (GU393713) were 93% (nt) and 99% (aa). The sequence identities for the nt and aa were 75%-76% and 90%, respectively, between the current isolates from Longyan and the Gregory prototype strain found in 1953. The sequence identity of nt and aa between the Longyan virus strains and the domestic Shandong strains isolated in 2010 were lower, at 74% and 88%-89%, respectively. However,the highest level of ho- mology was found when the Longyan strains were compared with the Netherlands strain (GU393773) found in 2007 (nt and aa identity: 94%-95% and 98%-99%, respectively). The relatively low levels of similarity between domestic isolates suggest that different transmission routes exist for Echo11 in mainland China.
Adolescent
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Amino Acid Sequence
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Base Sequence
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Child
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Child, Preschool
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Chin
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China
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Encephalitis, Viral
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virology
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Enterovirus B, Human
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chemistry
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classification
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genetics
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isolation & purification
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Enterovirus Infections
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virology
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Female
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Genotype
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Humans
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Male
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Middle Aged
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Molecular Sequence Data
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Phylogeny
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Sequence Alignment
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Viral Proteins
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chemistry
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genetics