1. Determination of cinnamic acid, cinnama ldehyde, paeonol, alisol B 23-acetate, atractylodes lancea and atractylodin in Yeming granules by RP-HPLC
Chinese Pharmaceutical Journal 2012;47(15):1242-1245
OBJECTIVE: To develop a RP-HPLC method for determination of cinnamic acid, cinnama ldehyde, paeonol, alisol B 23 acetate, atractylodes lancea, and atractylodin in Yeming granules. METHODS: The determination was performed on an Eclipse XDB-C18column (4.6 mm × 250 mm, 5 μm) at 30°C with a flow rate of 1.0 mL · min-1. The mobile phase was 0.3% phosphate-acetonitrile at gradient elution. The detection wavelength was set at 240 nm. RESULTS: The linear regression equations for cinnamic acid, cinnama ldehyde, paeonol, alisolB 23 acetate, atractylodes lancea, and atractylodin were ρ=-0.0055A + 0.0083 (r=0.9996), ρ=0.0255, 4+0.1336 (r=0.9999), ρ=0.0408 A +0.664 3 (r=0.999), ρ=0.003 3 4+0.0171(r=0.999 9), ρ=0.0163 A + 0.1075 (r=0.999 8), ρ=0.0229A + 0.0884 (r=0.9999), respectively. Good linearity was obtained over the ranges of 0.3096-2.322, 10.24-76.8, 37.36-280.2, 0.5128-3.846, 1.612-12.09 and 10.26-76.95 μg · mL-1, respectively. The recoveries were 100.1%, 99.8%, 100.7%, 99.3%, 100.4% and 100.5%, respectively. CONCLUSION: The method is simple and suitable to control the quality of Yeming granules. Copyright 2012 by the Chinese Pharmaceutical Association.
2.Analysis and strategy on the less approved results of lumbar discectomy
Nan-Min JI ; Wei-Tao YAO ; Hui ZHANG ;
Chinese Journal of Orthopaedics 2000;0(11):-
Objective To study the relationship of surgical procedures with clinical effect in herniat-ed lumbar disc in order to improve operative methods and obtain a better outcome.Methods Retrospec-tive analysis was carried out in7235patients with herniated lumbar disc,who had been operated by removal of nucleus pulposus using small incision and fenestration in our hospital since1983,313cases of whom re-ceived second operation because of postoperative complications.There were187males and126females aging from27to62years(mean,45.8years),the incidence of morbidity was4.32%.During the same period,552patients,who had less approved operative result primarily treated in other hospitals,were admitted to our hospital.There were317males and235females aging from31to64years(mean,46.0years).Results The postoperative complications could be divided into short term(within1month after operation)and mid-dle to long term(more than1month after operation)groups.The total446cases with short term compli-cation were133cases primarily treated in our hospital and313cases in other hospital,including of re-herni a-tion or incomplete nuclear extirpation in77treated with second operation,discitis in106treated with con-servative therapy for 67and second operative management for 39,canal hematoma compression in76treated surgi cally,multi-level herniation and leakage in21and mislocalization in59re-operated,injury of nerve root or cauda equina in85treated with nerve exploration,release and anastomosis,residual materials in canal in17with removal of foreign body,venous thrombus in2,and arachnoiditis in3.The total424cases with middle to long term complications were185cases primarily treated in our hospital and239cases in other hospitals,including of nerve root adhesion in159,recurred disc herniation in122,segmental instability in81,and ia-trogenic spinal stenosis in62.Conclusion Many factors may influence the outcome of herniated lum bar disc which can be abolished by sufficient preparation,careful operation and proper managememt.
3.Screening of anti-SARS-CoV-2 ligands from Chinese herbs based on a dual-target surface plasmon resonance biosensor
Hui-lin MA ; Ying ZHANG ; Min-yu QI ; Yi-qing YAO ; Xuan WANG ; Dong-yao WANG ; Yan CAO
Acta Pharmaceutica Sinica 2023;57(5):1181-1187
The epidemic of COVID-19 has brought great challenges to the global public health prevention and control system combined with clinical diagnosis and treatment system, and it makes the development of effective antiviral drugs an important task in current pharmaceutical research. Traditional Chinese medicine (TCM) has played an important role in the prevention and control of COVID-19. Due to its numerous chemical components and various structural types, TCM becomes a natural library for searching for lead compounds against SARS-CoV-2. In this study, a novel dual-target surface plasmon resonance (SPR) biosensor was developed for S protein receptor binding domain (SRBD) and angiotensin converting enzyme 2 (ACE2) which are two key proteins in the process of SARS-CoV-2 invading cells according to characteristics of synergistic effects of multiple components and comprehensive regulation of multiple targets of TCM. The SPR biosensor was applied to screen and identify active components from six TCMs, and daidzin from Puerariae Lobatae Radix was identified to bind with SRBD and ACE2. The affinity constant (
4.Controlled comparison of two supplemented aerobic and anaerobic blood culture bottles to detect simulated bacteremia specimens
Yao WANG ; Ying-Chun XU ; Xiu-Li XIE ; Hui WANG ; Min-Jun CHEN ;
Chinese Journal of Laboratory Medicine 2001;0(05):-
Objective To compare BACTEC Plus aerobic and anaerobic bottles with BacT/ALERT FA aerobic bottles and FN anaerobic bottles in the ability of detecting simulated bacteremia specimens.Methods The 202 pairs of specimens were composed of 5ml sterile blood and defined loads of microorganisms.112 pairs of specimens in them also contained defined doses of antibiotics to simulate the patients undertaking antibiotic therapy.Time-to-detect(TTD)and positive percentages were evaluated in four groups,including aerobic bottles detecting aerobic bacteria,anaerobic bottles detecting anaerobic bacteria and facultative anaerobic bacteria,and aerobic bottles contained antibiotics detecting aerobic bacteria.Results The positive percentages of two kinds of aerobic bottles were both 100%.For the specimens with bacterial concentration of 10~2 and 10~3 CFU/ml,average TTDs of BACTEC Plus aerobic bottles[(13.69?3.74)h,(11.54?2.87)h]were faster than those of BacT/ALERT FA bottles [(16.76?5.62)h,(14.47?4.30)h;t=-5.674,-7.294,P
5.Applications of tree-shaped structure in DICOM based on XML.
Chinese Journal of Medical Instrumentation 2006;30(2):83-87
In order to improve the sharing of DICOM, a proposal is offered to introduce XML into DICOM on the SPIE 2005 and in this way, better readability and expansibility of DICOM files have been achieved. On this basis, the DICOM data structure is improved further by replacing the one-dimension linear data structure with multilayer tree-shaped data structure. And thus the nesting and dependence relationships between information object and data elements are much clearer and it is more convenient and easy to browse DICOM image files.
Database Management Systems
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Information Storage and Retrieval
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methods
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standards
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Medical Informatics
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methods
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Medical Records Systems, Computerized
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Programming Languages
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Radiology Information Systems
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Software
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User-Computer Interface
6.The Radiosensitizing Effect of Resveratrol on Hopypharyngeal Carcinoma Cell Line FADU and its Effect on the Cell Cycle.
Yuan SHAO ; Fang QUAN ; Hong-hui LI ; Xiao-bao YAO ; Qian ZHAO ; Rui-min ZHAO
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(6):699-703
OBJECTIVETo study the radiosensitizing effect of resveratrol on hypopharyngeal carcinoma cell line FADU in vitro.
METHODSHypopharyngeal carcinoma cell line FADU was cultured in in vitro DMEM. Its inhibition on cell proliferation was detected using cytotoxicity test (MTT assay). The cell survival curve was drawn using clone formation to obtain sensitive enhancement ratio (SER). Changes of the cell cycle and cell apoptosis were analyzed using flow cytometry (FCM).
RESULTSResults of MTT showed the inhibition of resveratrol on FADU cells increased along with its concentrations (P < 0.05). Results of clone formation indicated the surviving fraction at 2 Gy (SF2) was 0.717 ± 0.062 in the irradiation group, and 0.426 ± 0.035 in the resveratrol plus irradiation group (with SER ranged 1.684 ± 0.178) with statistical difference (P = 0.007). Results of FCM showed that after radiation of 4 Gy radiation, cells at G2/M phase arrest increased, but cells at G1 decreased. After radiation of resveratrol for 24 h, cells at G1 decreased, but cells at G2/M phase and S phase arrest increased. When 4 Gy radiation combined resveratrol was used, cells at G2/M phase arrest significantly increased, but cells at G1 significantly decreased. The apoptosis rate was 1.94% ± 1.65% in the control group, 4.56% ± 0.92% in the irradiation group, 2.03% ± 1.46% in the resveratrol group, and 23.11% ± 7.22% in the resveratrol plus irradiation group. There was statistical difference between the resveratrol plus irradiation group and the rest 3 groups (P < 0.05).
CONCLUSIONResveratrol could enhance the radiosensitivity of hypopharyngeal carcinoma FADU cells in vitro possibly by inducing cell apoptosis and causing changes in the cell cycle distribution.
Apoptosis ; Carcinoma, Squamous Cell ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; Cell Survival ; Head and Neck Neoplasms ; Humans ; Hypopharyngeal Neoplasms ; drug therapy ; Radiation Tolerance ; Radiation-Sensitizing Agents ; therapeutic use ; Stilbenes ; therapeutic use
7.Effects of ischemic postconditioning on myocardial infarction sizes and protein kinase C expression in aged rats with post-ischemia reperfusion injury
Min LI ; Jian ZHANG ; Yanhong LIANG ; Yanrong CHEN ; Mengran WANG ; Yao XIAO ; Hui XIU
Chinese Journal of Geriatrics 2010;29(5):420-423
Objective To observe the effects of ischemic postconditioning (IPTC) on myocardial infarction sizes (IS) and protein kinase Cα (PKCα) expression in aged rats with post-ischemia reperfusion injury,and to explore the mechanism.Methods A total of 120 male Wistar rats were divided into aged group and adult group.The aged group was randomly divided into control group (n=12,30-min ischemia and 3-h reperfusion),5 s,10 s,30 s and 60 s IPTC groups [n= 12,each;after 30 min occlusion of left coronary artery (LCA),three cycles of 5 s,10 s,30 s,60 s reperfusion respectively followed by the same interval LCA re-occlusion were applied at the beginning of reperfusion].The IS was measured with TTC dye,and PKC expression was investigated by immunohistochemistry.Results Different IPTC intervals had different effects on IS and PKC expression,10 s and 30 s IPTC could reduce IS both in aged rats and adult rats [(55.9±6.0)% and (47.4±5.5)%],IS in 10 s IPTC group in aged rats was (48.1±5.3)%,in adult rats was (39.2±5.7) %;IS in 30 s IPTC group in aged rats was (48.8 ± 6.8) %,in adult rats was (40.2 ± 6.1 ) %.PKCα expression increased in aged and adult rats (all P<0.05).5 s IPTC could increase IS [IS in 5 s IPTC group in aged rats was (63.5±5.4)%,and PKCα expression reduced in aged rats (all P<0.05)].Conclusions IPTC has cardio-protective effect in aged rats suffering from acute myocardial injury during reperfusion,the effect of IPTC is related to reperfusion-reocclusion interval.
8.Characteristics of Bone Development in Children with Cerebral Palsy
Zeping LI ; Min SHEN ; Hui CHENG ; Jing ZHAO ; Xiulian NIU ; Xuehua YAO ; Lihui GU ; Juanjuan CHEN
Chinese Journal of Rehabilitation Theory and Practice 2015;21(2):228-231
Objective To observe the characteristics of bone development and body development in 3-7 years old children with cerebral palsy. Methods 50 girls and 50 boys aged 3-7 years with cerebral palsy were included. Their height, weight, length of right and left upper extremities, and both hands bone age were measured by trained professionals. Results Their bone ages of both hands were 1 year younger than actual age (P<0.05), and there was no significant difference between right and left hand bone age (P>0.05). Their height growth was in line with the normal children, while the weight growth was a little different. Both sides of upper limbs growed synchronously, and slowed down with the time. There was no significant difference in both sides (P>0.05). Conclusion The bone development of children with cerebral palsy lags behind the life age. Their height growth is close to normal children. The development shows no no significant lateral dominance.
9.Identification of constituents in vitro and blood-absorbed ingredients of protective effect on acute liver injury from Yin Chen Hao decoction based on UPLC-QTOF/MS
Yi-qing YAO ; Qi CAO ; Xuan WANG ; Hui-lin MA ; Yu-miao CHEN ; Si-yi ZHAO ; Min-xuan GUO ; Jia-meng HU ; Dong-yao WANG ; Di-ya LÜ
Acta Pharmaceutica Sinica 2023;57(5):1173-1180
To identify the active constituents
10.Osteogenesis characteristics of cultured rat mesenchymal stem cells under bone induction condition.
Dongfeng CHEN ; Hui LI ; Jianhong ZHOU ; Yao XIE ; Yiwei LI ; Shaohui DU ; Yi ZHANG ; Jie HUANG ; Min XU
Journal of Integrative Medicine 2004;2(5):375-8
To investigate the osteogenesis characteristics of cultured rat mesenchymal stem cells (MSCs) under bone induction condition.