1.Determination of flavonoids in Hypericum perforatum processed by different methods of drying by HPLC
Chinese Traditional and Herbal Drugs 1994;0(05):-
Object To develop a method for the determination of flavonoids in Hypericum perforatum L processed by different drying methods to provide a basis for the processing of the natural herbs Methods The chromatographic conditions were Discovery C 18 column (5 ?m, 4.6 mm ? 25 cm). detection wavelength 365 nm; mobile phrase : water : acetonitrile : phosphoric acid (825∶175∶1); flow rate 1.0 mL/min Results The contents of rutin and hyperin were at their maximum when dried at 60 ℃ for 4 h Rutin had a good linearity in the range of 0.107~2 675 ?g, average recovery rate 99 32%, RSD 1 007%, and hyperin in the range of 0 107~2 675 ?g, average recovery rate 99 54%, RSD 3 591% Conclusion Temperature is the main factor influencing the content of flavonoids The HPLC determination was shown to be rapid, reliable and simple, and may be used for the quality control of H perforatum
2.Application of Tentacles Medical Records in Teaching
Li CONG ; Mei CHEN ; Xiaodong SONG
Journal of Zhejiang Chinese Medical University 2016;40(9):713-714
Objective]Help students to construct the system of TCM clinical thinking and to cultivate the ability of differential diagnosis and prescription. [Methods]In the late clinical teaching, make junior doctor with a high grade of students, graduate students, or some clinical experience as a research object, designing as a medical record has gradually evolved into a number of different medical records dynamic group, let students practice the tentacles medical records. [Results]Gradually,students learned to distinguish the different parties in the different clinical symptoms, and enhance the understanding of drugs and prescriptions. [Conclusion] The tentacles medical records practicing can cultivate the students' ability of dialectical thinking integration.
3.Design of an HIS compatible with multi-format document
Xiaodong KANG ; Guang CONG ; Huisheng LU
Chinese Medical Equipment Journal 2004;0(09):-
With the analyses of correlative techniques, such as ODBC and ASP, and the application characteristics of HIS, this paper develops an object-oriented design project and its application system.
4.Studies on the Change of the Content of Polysaccharides in Crude and Processed Fructus Corni
Xiaojuan LIANG ; Weifeng DU ; Baochang CAI ; Xiaodong CONG ; Yun ZHANG
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(05):-
Objective To investigate the change of the content of polysaccharides in crude and processed Fructus Corni,thus to approach the process mechanism of Fructus Corni.Methods The content of polysaccharides in the crude and processed Fructus Corni was determined by phenol-sulfuric acid method.Results After processing with wine,the content of polysaccharides of Fructus Corni decreased from 10.12 %(content of total polysaccharidesbeing 51.41 %) to 5.91 %(content of total polysaccharidesbeing 53.10 %),decreased by 41.60 %as compared with that in the crude Fructus Corni.Conclusion After processing with wine,the content of polysaccharides decreases markedly.The results provide certain evidence for approaching the process mechanism of Fructus Corni.
5.Polypeptide modified coating, a bone tissue engineering material, is used for treatment of osteoporosis
Cong WANG ; Wen YUAN ; Xiaodong WU ; Haiyong AO
Chinese Journal of Tissue Engineering Research 2013;(42):7455-7461
BACKGROUND:The biological substances fixed onto the implant surface, including specific proteins, enzymes, polypeptides, could promote the proliferation and differentiation of osteogenic cells in order to achieve a good osteogenic effect.
OBJECTIVE:To introduce the biological characteristics of the arginine-glycine-aspartic acid (RGD) peptides, cellbiological behavior and implant osseointegration in osteoporosis.
METHODS:Authors retrieved the relevant articles in PubMed database (January 1984 to January 2013), Wanfang database (January 2002 to December 2012) and CHKD database (January 2002 to December 2012) using the key words“RGD peptides, osteoporosis, bone marrow mesenchymal stem cells, osseointegration, osteoblast, induced differentiation”. Papers were included concerning the biological characteristics of RGD peptides, the biological behavior of cells and the bone-implant integration in osteoporosis.
RESULTS AND CONCLUSION:Osseointegration on the surface between implant and bone tissue can be further improved by grafting biological y active substance. Bionics modification, to simulate the extracellular matrix environment in vivo, can promote celladhesion and growth, which is an effective way to improve osseointegration and is also an important direction of research in the field of tissue engineering recently. The future research is focused on designing specific and efficient polypeptides and simple and effective fixation methods.
6.Neutralization of anti-venom IgY against main activities of Deinagkistrodon acutus venom
Jinhua LIU ; Heng LI ; Qiyi HE ; Yingfeng ZHANG ; Diancheng CHEN ; Cong LUO ; Xiaodong YU
Chinese Pharmacological Bulletin 2017;33(1):58-62
Aim To evaluate the potency of anti-D. acutus venom IgY neutralizing the main activities of D. acutus venom.Methods After mixing the different a-mounts of IgY with snake venom and incubating togeth-er,the main activities of snake venom were assayed by biochemical methods.Results The in vitro assays in-dicated that anti-D.acutus venom IgY obviously neu-tralized the activities of PLA2 ,5′-nucleotidase,hyalu-ronidase,metalloprotease and serine proteinase (fi-brinogenase)in D.acutus venom.Mouse experiments showed that the ED50 value of IgY for mouse was 1 131.09 μg.Conclusion Anti-D.acutus venom IgY antibodies have good effects in neutralizing D.acutus venom without the toxicities themselves.
7.Nerve root lesion of brachial plexus intervertebral part diagnosed by high-resolution ultrasonography
Dingzhang CHEN ; Minjuan ZHENG ; Rui CONG ; Yongsheng ZHU ; Hua FENG ; Rui ZHAO ; Xiaodong ZHOU
Chinese Journal of Ultrasonography 2011;20(8):699-702
Objective To evaluate the application of high-resolution ultrasonography in the diagnosis of nerve root lesion of cervical vertebra intervertebral foramen part. Methods Twenty-seven patients with root avulsion injury of brachial plexus intervertebral part and 8 patients with schwannoma of brachial plexus root were examined with high-resolution ultrasonography. Thirty healthy volunteers were involved for the sonographic imagings of normal brachial plexus intervertebral part. The ultrasound findings of the patients before operation were compared with surgical outcomes. Results The normal intervertebral part of brachial plexus were shown as hypoechoic tubular strucuture, which could be identified with cervical artery and transverse process used as landmarks for the intervertebral part of brachial plexus root. The detection ratios of normal intervertebral part for C5-C8 and outside part of braehial plexus were 100%. In 27 patients with root avulsion injury of intervertebral brachial plexus, the intervertebral nerve root were enlarged as hypoechoic area, with nerve dissected partly or disappearing, distal nerve parts outside the intervertebral foramen swelling, edema,or cerebrospinal fluid assembling as cystic masses. In 8 patients with schwannoma of brachial plexus root part, the spinal ganglia outside intervertebral foramen were shown as tumor-like hypoechoic mass, with blood supply shown inside. Conclusions High-resolution ultrasonography is of great value for early and convenient diagnosis of root avulsion injury and mass of brachial plexus intervertebral part, especially in community hospitals,which could provide important information for clinical therapy.
8.Ultrasound diagnosis of traumatic neuroma in peripheral nerve
Hongyan CAO ; Dingzhang CHEN ; Rui CONG ; Xiaoxing ZHU ; Minjuan ZHENG ; Xiaodong ZHOU
Chinese Journal of Ultrasonography 2008;17(7):615-617
Objective To analyze sonographic imagings of traumatic neuromas of peripheral nerves,and to investigate the applied values of uhrasonography in the traumatic neuroma of peripheral nerve. Methods The sonographic imagings of 38 patients who had evidences of traumatic neuromas in peripheral nerves were retrospectively reviewed by the last diagnostic results of operations. Results Among 38 cases, 2 incomplete traumatic neuromas were not detected, and 1 incomplete traumatic neuroma was misdiagnosised as neurilemoma by ultrasonography. The coincidence of uitrasonography in incomplete traumatic neuroma and complete severed neuroma was 82.4% and 100%. With regard to the echogenicity of 38 traumatic neuromas of peripheral nerves, the sonographic characteristics of neuromas were all hypoechoic. Thirty-three neuromas appearanced like shuttles and 5 neuromas appearaneed like humps. Conclusions The traumatic neuroma has distinctive ultrasonic appearance. Ultrasonography is useful to direct the diagnosis and treatment of traumatic neuroma.
9.Survey and analysis of the microenvironment and airborne microbes in one warship
Long YU ; Jinsong LI ; Liming CONG ; Weipeng LI ; Xiaodong WANG ; Shaofu QIU
Military Medical Sciences 2014;(8):594-597
Objective To find out about the temperature ,relative humidity, concentration and species of air microbes in the warship , and to detect the possible pathogenic agents responsible for the high incidence of respiratory diseases among the crew.Methods A digital hygrometer was used to measure the indoor tempreture and relative humidity .Open agar set-tling plates were used to sample the air bacteria in the ship .Pure bacterial colonies were isolated from those on the original plates by repeated streak inoculation .The species of bacteria were determined by gram staining ,light microscope observation and 16S rDNA sequencing .Results Spots that met the standard requirement of temperature accounted for 20%but relative humidity was up to the stevrdard ineach place investigated .Although the concentration of airborne microbes was under the standard limit,bacteria were various.There were 18 different bacteria isolated from the air sample , including Chryseobacteri-um jejuense,Acinetobacter baumannii, Bacillus sporothermodurans, Staphylococcus aureus, Staphylococcus capitis, Staphylo-coccus hominis subsp.hominis strain and subsp.novobiosepticus, Staphylococcus cohnii subsp.cohnii and subsp.urealytic-us,Enhydrobacter aerosaccus,Corynebacterium casei,Macrococcus caseolyticus,Corynebacterium ammoniagenes,Brevibacillus panacihumi,Comamonas koreensis,Bacillus subtilis,Sphingobium yanoikuyae, Chryseobacterium hominis.Conclusion The high incidence of respiratory diseases among officers and soliders might be related to the lower tempreture and some airborne bacteria in the warship .
10.The Distribution of the Lipid Droplets within Hensen Cells in the Guinea -pig Cochlea
Fengbo YANG ; Daxiong DING ; Ping LV ; Xiaoting CHENG ; Hongmiao REN ; Guowei HUANG ; Xiaodong WANG ; Chen LIU ; Yue ZHANG ; Tao CONG ; Shiming YANG ; Suoqiang ZHAI ; Ning YU
Journal of Audiology and Speech Pathology 2015;(5):500-504
Objective To study the distribution and properly of the transparent globules within Hensen cells (HC) of guinea -pig Corti organ .Methods The cochlear epithelial cells were isolated from 10 guinea pigs .The cells of cochlea were marked by Bodipy493/503 ,sudan III ,oil red O ,and osmium tetroxide .Results The transpar‐ent globules within the HCs of the guinea -pigs were green staining by Bodipy493/503 ,jacinth staining by Sudan III ,ruby red by oil red O .And they were black globules stripe as post -fixed in 1% osmium tetroxide .Conclusion The results indicate that the transparent globules within guinea -pigs HCs'lipid droplets by four methods .