1.Research and practice about risk control of shenfu injection.
Zhi-Fei WANG ; Da-Li TIAN ; Wen ZHANG ; Yan-Ming XIE
China Journal of Chinese Materia Medica 2014;39(18):3641-3644
Shenfu injection is developed by improving dosage form of ancient prescription "Shenfu Tang" and is mainly derived from extracts of both traditional Chinese medicine red ginseng and prepared lateral root of monkshood with polysorbate 80 as auxiliary material. Shenfu injection may be administered through intramuscular injection, intravenous drip or intravenous injection. It produces good effects in restoring Yang and rescuing patients from collapse, tonifying Qi and preventing exhaustion. It is mainly used to treat not only syncope and prostration resulting from sudden Yang collapse (infectious, hemorrhagic and water depletion shock etc), but also pavor, palpitation, dyspnea with cough, stomachache, diarrhea and arthralgia etc caused by deficiency of Yang (deficiency of vital energy). Research group has audited the monitored hospitals and has carried out postmarketing study of Shenfu solution from many aspects including literature review, spontaneous reporting system (SRS) and hospital information system (HIS) data analysis etc. A summary is shown below.
Drugs, Chinese Herbal
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administration & dosage
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adverse effects
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Humans
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Injections
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Medicine, Chinese Traditional
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methods
2.Total knee replacement and arthroscopic treatment for pigmented villonodular synovitis of the knee joint
Pengfei LEI ; Jie XIE ; Ting WEN ; Da ZHONG ; Long WANG ; Xucheng YANG ; Yihe HU
Chinese Journal of Tissue Engineering Research 2013;(52):9077-9082
BACKGROUND:Surgical treatment for pigmented vil onodular synovitis can maximize the excision of synovial lesions and recovery of joint function.
OBJECTIVE:To investigate the knee joint function and relapse rate fol owing treatment of pigmented vil onodular synovitis with total knee replacement and arthroscopic synovectomy.
METHODS:We retrospectively analyzed 34 cases of knee pigmented vil onodular synovitis admitted for surgical treatment in the Department of Orthopedics, Xiangya Hospital of Central South University, China from December 2006 to December 2011. In these cases, 24 patients received arthroscopic synovectomy and 10 patients were subjected to total knee replacement. Adjuvant radiotherapy was conducted according to postoperative patient’s conditions. Lysholm scoring was employed in the arthroscopic synovectomy group, and American Knee Society scoring was used in the total knee replacement group. Knee function in two groups was compared before and after treatment. Fol ow-up observation was performed to compare knee function recovery and relapse rate between two groups.
RESULTS AND CONCLUSION:Thirty-four patients were effectively fol owed up for 12-66 months, mean 41.3 months. Statistical analysis showed that in the arthroscopic synovectomy group, the postoperative Lysholm score was (86.3± 10.3) points, significantly higher than the preoperative score which was (55.5±13.2) points (t=3.81, P=0.016, P<0.05). In the total knee arthroplasty group, the American Knee Society score was increased from (40.7±2.2) points preoperatively to (90.2±1.1) points postoperatively (t=6.27, P<0.01). In the arthroscopic synovectomy group, the American Knee Society score was increased from (34.2±3.9) points preoperatively to (80.8±1.9) points postoperatively (t=16.58, P<0.01). Arthroscopic synovectomy combined with adjuvant radiotherapy can achieve better outcomes in pigmented vil onodular synovitis patients, while the total knee replacement for advanced with advanced knee diffuse pigmented vil onodular synovitis is better to restore knee function and the recurrence rate is low.
3.Similarity between leaves of Nauclea officinalis and stems of Nauclea officinalis.
Yuan-pei LIAN ; Da-wen XIE ; Shao-wei YUAN ; Yan-jing LI ; Gang DING ; Wen-zhe HUANG ; Wei XIAO
China Journal of Chinese Materia Medica 2015;40(22):4433-4441
The study is to develop a method to determine 3 batches leaves of Nauclea officinalis and stems of N. officinalis by HPLC. The differences between strictosamide contents and fingerprints was compared, then chromatographic peak of fingerprints was validated with the assistance of LC-MS. The strictosamide contents in stems of N. officinalis were higher than leaves of N. officinalis. The main chemical composition in leaves of N. officinalis and stems of N. officinalis were alkaloid which revealed by LC-MS. There are 7 chemical compositions were same between them, but the chemical composition in leaves of N. officinalis is more than stems of N. officinalis. This provides a scientific basis for the development of the potential medicinal value of leaves of N. officinalis and the sustainable utilization of N. officinalis.
Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Molecular Structure
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Plant Leaves
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chemistry
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Plant Stems
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chemistry
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Rubiaceae
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chemistry
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Spectrometry, Mass, Electrospray Ionization
4.Development of nanohydroxyapatite composites as bone grafting materials.
Ruifang WANG ; Da WEN ; Xingyi XIE ; Yinping ZHONG
Journal of Biomedical Engineering 2008;25(5):1231-1234
Hydroxyapatite (HA) is one of ideal materials for bone substitutions due to its intrinsic biocompatibility. However, its relatively poor mechanical properties such as brittleness and low strength have hindered its use in high-load applications. Biotic bones themselves are nanocomposites mainly composed of nanohydroxyapatite (n-HA) and collagen. From biomimetic point of view, nanocomposites of HA could potentially improve both biocompatibility and mechanical properties of bone grafting materials. Recent progress in this field branched into nanocomposites of HA with nonbiodegradable and biodegradable polymers, the latter including collagen, gelatin, chitosan, polylactides as well as polyanhydrides. In this paper, the preparation, biological reactions and mechanical properties of different nanocomposites are reviewed in detail.
Biocompatible Materials
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chemistry
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Bone Substitutes
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chemical synthesis
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chemistry
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Durapatite
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chemistry
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Humans
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Nanocomposites
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chemistry
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Nanoparticles
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chemistry
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Particle Size
5.Quantitative and qualitative evaluation on tablets of Ginkgo biloba leaves using fingerprint and LC-MS analysis.
Wen-lin LIANG ; Da-wen XIE ; Gang DING ; Dian-hong XU ; Yong-cheng SUN ; Lian YUAN-PEI ; Yan-jing LI ; Wei XIAO
China Journal of Chinese Materia Medica 2015;40(9):1738-1743
A reasonable method for the quality control of tablets of Ginkgo biloba leaves was established in this paper. The total flavonol glycosides and terpene lactones of G. biloba tablets were quantified by HPLC. Totally, 16 batches of the commercially available tablets of G. biloba leaves were determined. Among of them, 2 batches were unqualified in the content of total flavonol glycosides, and 3 batches were unqualified in the content of terpene lactones. A validated HPLC fingerprint method was established to evaluate the commercially available tablets of G. biloba leaves with the assistance of LC-MS. Sixteen batches showed the similarity of 0.763-0.989. There were 31 fingerprint chromatogram peaks were identified as flavonoids compositions by LC-MS. This provides a research idea for the quality control of tablets of G. biloba leaves.
Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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chemistry
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Ginkgo biloba
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chemistry
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Mass Spectrometry
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methods
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Plant Leaves
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chemistry
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Quality Control
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Tablets
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chemistry
6.The primary study on the detection of sterigmatocystin by biologic enzyme electrode modified with the multiwall carbon nanotubes.
Dong-Sheng YAO ; Sheng-Mei WEN ; Da-Ling LIU ; Chun-Fang XIE ; Yan BAI ; Yan-Hong RAN
Chinese Journal of Biotechnology 2004;20(4):601-606
Sterigmatocystin (ST), the secondary metabolite of many kinds of filamentous fungi, is a potent carcinogen structurally related to the aflatoxins (AFT). With similar chemical structure, sterigmatocystion behaves much the homogeneous properties to aflatoxins, both of these mycotoxins exhibit similar biological properties due to their bisfuranoid structure. Since the common, and even heavier pollution, found in foods and feeds-stuff, sterigmatocystion is more harmful than aflatoxins. The reported detection methods of sterigmatocystion included the Thin-layer Chromatography, the High-Performance-Liquid Chromatography, the Enzyme-Linked Immunosorbant Assay and the PCR detection to the toxic gene, however studies about both easy and inexpensive electro-chemical methods have not been found. Our previous studies had discovered that Sterigmatocystin (ST) exist similar sensitivity towards aflatoxin-detoxifizyme (ADTZ), which we had isolated from a fungus, as aflatoxin does. In this work, the preliminary study on electrochemical analysis and determination of ST with triplet electrode enzyme-biosensor system (Ag/AgCl as the reference electrode, Pt and Au as the pair and work electrode, respectively) was carried out. Multiwall-carbon-nanotube (MWNT) had been used to increase the electron transportation on electrode. In the research, the Au electrode was modified by MWNT-immobilized ADTZ, and then the voltammertric behavior of ST was studied by means of cyclic voltammogram analysis and different pulse analysis. Autoprobe CP Research Atomic Force Microscope and TECNAI 10 Transmission Electron Microscope, had been used to detect the MWNT as well as the surface of MWNT-modified ADTZ. The voltammertric behavior of ST was studied by means of cyclic voltammogram analysis and different pulse analysis. The results show that the red-ox peak potential of ST is at the point of -600 mV, the linear detection range is from 8.32 x 10(-5) to 66.56 x 10(-5) mg/mL, the detection limit is at 8.32 x 10(-5) mg/mL, and the response time is 10 seconds. This study provided a good basic work for further research.
Biosensing Techniques
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methods
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Electrochemistry
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Microscopy, Atomic Force
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Microscopy, Electron, Transmission
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Nanotubes, Carbon
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chemistry
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Sterigmatocystin
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analysis
7.Aberrant methylation of APC and Bikunin CpG islands in sporadic breast carcinomas.
Yang-Lin CHEN ; Yun-Tao XIE ; Xian-Zi WEN ; Da-Jun DENG
Chinese Journal of Preventive Medicine 2007;41 Suppl():17-19
OBJECTIVETo investigate relationship between methylation status of the APC and Bikunin CpG islands and clinicopathological characteristics of breast carcinomas.
METHODSThe methylation status of APC and Bikunin CpG islands in 152 sporadic breast carcinoma samples were analyzed by methylation specific PCR.
RESULTS40.8% of breast carcinomas examined showed methylated signals for the APC. The methylation frequency of APC was significantly correlated to the tumor size (chi(2) = 4.041; P = 0.044), but not to patients' age, pathologic type of tumor, clinical stage, histological grade, lymph node metastasis and the status of estrogen or progestogen receptor. In addition, 24.6% of carcinoma samples examined revealed strong methylated signals for Bikunin. No significant correlation was found between the aberrant methylation of Bikunin and the clinicopathological characteristics of sporadic breast carcinomas.
CONCLUSIONThe aberrant methylations of APC and Bikunin are frequent events during breast carcinogenesis. APC methylation might play a role in the progression of breast cancer.
Breast Neoplasms ; genetics ; pathology ; CpG Islands ; DNA Methylation ; DNA, Neoplasm ; genetics ; Female ; Follow-Up Studies ; Humans
8.The utility of neuronavigation in the microsurgery for cerebral cavernous malformations.
Hong-wen XIE ; Da-ming WANG ; Qing-guo YUAN ; Cheng SHA ; Yu-ming YANG ; Hong-zhi JIANG
Chinese Journal of Surgery 2011;49(8):712-715
OBJECTIVETo evaluate the utility of neuronavigation in the microsurgery for cerebral cavernous malformations.
METHODSIn a retrospective study, 47 patients with cavernous malformations were involved from January 1995 to December 2010. Fourteen cases admitted into hospital from January 1995 to December 2002 were treated without neuronavigation (conventional group), the focus localization was based on magnetic resonance imaging (MRI) images, anatomic landmarks, and the experiences of the neurosurgeon. In the other 33 cases admitted after February 2002 to December 2010, surgeries were performed with neuronavigation using the Medtronic Stealth Station TREON or TRIA system (neuronavigation group). Excision of the cavernomas were all performed microsurgically, surrounding gliotic rim and hemosiderin stained tissue were resected in the case of epilepsy, and a few patients underwent extended hippocampal resection or multiple subpial transection.
RESULTSWith the use of neuronavigation, the extent of craniotomy reduced from 5.2 cm to 3.6 cm (P < 0.01), and deeper cavernoma focuses could be treated surgically. There were no changes with regard to the mean size of the cavernomas, the mean time of surgery and hospital stay (P > 0.05), but the mean time of anaesthesia was prolonged from 164 min to 197 min (P < 0.01). Cavernomas were resected completely in all 47 cases, which was confirmed by postoperative MRI recheck. The conditions of all patients were improved or remain unchanged, and no significant differences in the clinical outcome could be evaluated between the two groups.
CONCLUSIONSApplication of neuronavigation-assisted microsurgery of intracranial cavernous malformations surgery, helps reduce the surgical trauma, and has security and reliability.
Adolescent ; Adult ; Female ; Hemangioma, Cavernous, Central Nervous System ; surgery ; Humans ; Male ; Microsurgery ; methods ; Middle Aged ; Neuronavigation ; Retrospective Studies ; Young Adult
9.Osmotically controlled oral drug delivery systems: an update review.
Wen-Ping WANG ; Xiu-Qiong XIE ; Da-Jian YANG ; Shi-Lin CHEN
China Journal of Chinese Materia Medica 2008;33(5):598-602
Osmotically controlled oral drug delivery systems (OCODDSs) utilize osmotic pressure for controlled delivery of active agents. The release of drugs from osmotic systems is governed by various formulations and processing factors such as solubility and pressure of the core components, properties of the semi-permeable membrane. In the present review, the references on OCODDSs have systematically been summarized in the following aspects: prescription design, industrial processing and equipments, methods for quality evaluation, and general situation of application. Prospect of applying the osmotic-pump technology into Chinese patent drugs is also discussed.
Administration, Oral
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Drug Delivery Systems
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methods
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Drugs, Chinese Herbal
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administration & dosage
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Osmotic Pressure
10.Estradiol stimulates proliferation of prostatic smooth muscle cells via estrogen receptor alpha and IGF1.
Da-wei ZHOU ; Shi-wen LI ; Xing-huan WANG ; Xin-min ZHENG ; Xie-gang DING
National Journal of Andrology 2011;17(2):131-135
OBJECTIVETo investigate the effects of estrogen receptor alpha (ERa) and insulin-like growth factor 1 (IGF1) on the proliferation of prostatic smooth muscle cells (PSMCs) in vitro.
METHODSThe ERalpha shRNA expression frame was subcloned to the pGSadeno adenovirus vector by homologous recombination technology to construct the pGSaaeno-ERalpha vector. After the mouse PSMCs were transfected in vitro by pGSaaeno-ERalpha, the mRNA and protein expression levels of ERalpha were detected by RT-PCR and Western blot respectively. The expression of IGF1 in the ERa-reduced cells was determined by Western blot 6 hours after treatment with 17beta-estradiol (E2) at 10(-8) mol/L. The post-transfection activity of estrogen or exogenous IGF1 in the proliferation of PSMCs was evaluated by MTT chlormetric analysis.
RESULTSAfter treatment with E2, the proliferation of PSMCs and the expression of the IGF1 gene were significantly increased in the normal control group (P <0.05), but not obviously changed in the ERalpha-siRNA group (P> 0.05). And exogenous IGF1 failed to induce the proliferation of the ERalpha-reduced PSMCs.
CONCLUSIONE2 induces the expression of IGF1 via ERalpha, and IGFl, with the interaction of ERalpha, promotes the proliferation of PSMCs.
Animals ; Cell Proliferation ; Cells, Cultured ; Estradiol ; pharmacology ; Estrogen Receptor alpha ; metabolism ; Insulin-Like Growth Factor I ; metabolism ; Male ; Mice ; Myocytes, Smooth Muscle ; cytology ; Prostate ; cytology ; RNA, Messenger ; genetics