1.Application of micro transesophageal echocardiography (micro-TEE) in neonat and infant cardiac surgery
Li DONG ; Xiaojing MA ; Xi YU ; Yuan YUAN ; Jingjing WANG
Chinese Journal of Ultrasonography 2015;24(11):948-950
Objective To evaluate the value of phased array probe of transesophageal echocardiography miniature (micro-TEE) in the neonatal and infant cardiac surgery intraoperation.Methods Micro-TEE probe was used in children with weight ≤5 kg undergoing cardiac surgery to detect the atrial and ventricular cavity size,the left and right ventricular outflow tract diameter were detected by transthoracic echocardiography(TTE) 3-7 d after operation,and compared with the measured value immediately after the TEE.Results Before and after intubation,airway index not statistically significant (P > 0.05).Preoperative TEE and TTE inspection results were consistent with intraoperative diagnosis.Postoperative TEE measuring intracardiac structural data (each room,chamber size and left and right ventricular outflow tract diameter) and postoperative TTE measurement value representing the difference was not statistically significant (P > 0.05).Conclusions Micro TEE intraoperative guardianship of low birth weight infants is safe and feasible,and can supplement and improve the preoperative diagnosis,and can accurately and timely evaluate postoperative curative effect.
2.Advanced in solubilization methods of water-insoluble natural drugs.
Hui ZHONG ; Yuan ZHU ; Jiang-nan YU ; Xi-ming XU
China Journal of Chinese Materia Medica 2014;39(17):3226-3231
With the development of natural products, the research activities on the solubilization methods of water-insoluble natural products have been carried out worldwide. Big molecular weight and poor solubility of most natural active ingredients lead to a very poor oral absorption and low bioavailability, which has extremely limited their development in pharmaceutical fields and clinical application. As a result, it is necessary to find out a suitable technique to improve the solubility and enhance the oral bioavailability of insoluble natural drugs. Based on the related references published in these years, this review introduced some new techniques to improve the solubility and bioavailability of natural drugs, including prodrugs, inclusion complex, solid dispersion, cocrystals, osmotic pump, liquisolid compacts, micronization, self-microemulsifying, nanosuspensions, lipsomes, polymeric micelles and so on, and summarized the theory, characteristics, application range, application examples, problems and development direction of each technique.
Administration, Oral
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Biological Availability
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Biological Products
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administration & dosage
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chemistry
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pharmacokinetics
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Chemistry, Pharmaceutical
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methods
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trends
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Solubility
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Technology, Pharmaceutical
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methods
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trends
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Water
3.Diagnosis and surgical treatment of intraspinal tumors
Deling YANG ; Mingjin ZHANG ; Huaju YU ; Xu ZHANG ; Shilong YUAN ; Yongming XI
Chinese Journal of Tissue Engineering Research 2014;(z1):172-175
To investigate the diagnosis and surgical treatment of inraspinal tumors.
The clinical data of 246 patients with inraspinal tumors who had undergone operations in the Affiliated Hospital of Qingdao University Medical Col ege between January 2010 and January 2013 were retrospectively analyzed. The treatment and prognosis of inraspinal tumors were reviewed.
262 operations were performed, with posterior bilateral laminectomy approach in 202 cases, semi-laminectomy approach in 28 cases, laminoplasty approach in 10 cases, and lateral resection of extra-vertebral canal dumbbel shaped tumors in 22 cases. The short-term remission rate of the nerve root pain reached 95.0%(133/140), and the improvement rates of the sensory disability, motor disturbance, and sphincter dysfunction were 85.6%(125/146), 86.7%( 136/157), and 84.6(11/13) respectively. The ASIA nervous function scores and grades at the last fol ow-up were significantly superior to those before and 3 months after the operation in 236 patients.
Intraspinal tumors are mostly benign. The clinical appearance of them should be watched closely, and thorough physical check-up should be performed. MRI is the examination of choice at early diagnosis. The key to improve the treatment effects is to perform operations as soon as possible.
4.Clinical Analysis of Laparoscopic Radical Hysterectomy for Cervical Cancer
Yuan MA ; Xiangqun WEI ; Linlin YANG ; Shufen TAN ; Yang GAO ; Xi LIU ; Yu FENG
Journal of Kunming Medical University 2013;(10):107-110,115
Objective To study the feasibility, safety and clinical application value of LRH, comparing with abdominal radical hysterectomy (ARH) . Methods A total of 80 patients' clinical data were collected to analyze the development of LRH in Yunnan Tumor Hospital while compared with another 40 patients between June 2012 to June 2013 of ARH for some associative indexes. Results The patients were divided into group A and B equally.Compared with Grope A, the time of operation decreased 26.9%, 37.2% has been augment for lymph gland sweeping, the amount of bleeding and intraoperative complication reduced 37.3% and 7.5% in Grope D, respectively, with distinctive difference ( >0.05) .Hospitalization expenses had a small degree reduced but no distinctive difference.The learning curve of LRH was 40 approximately.Comparison between LRH and ARH in the same period showed that LRH was more splendid than ARH in several index.1 case relapsed in 2-48 months follow-up in ARH while no relapse in the other group. Conclusion LRH is safe and feasible and has good prospects in clinical application and deserves clinical generalization because of its advantages such as less trauma,less pains, quick recovery,less scars and aesthetical appearance.
5.CT-study on branches artery thoracic aorta
Yu ZHANG ; Jian ZHU ; Erping XI ; Shuibo ZHU ; Guilin YIN ; Xiaohua ZENG ; Guihua XU ; Wen YUAN
International Journal of Surgery 2012;(12):808-811
Objective To provide vessel anatomical materials guidance for endovascular aortic repair,the branches artery of thoracic aortic was studied by CT angiography (CTA).Methods From January 2008 to February 2012,739 adult cases' CTA data were collected,all cases performing thoracic CTA in Wuhan General Hospital of Guangzhou Command.We measured the diameter and/or leugth of the ascending aorta,aortic arch and branches artery of aortic arch,and made an analysis.Results The aortic arch includes standard and variant types.Standard type is common,which accounted for 91.1% of the total number,while variant type accounted for 8.9%.In the standard aortic arch of patients,the diameter of aortic arch above the opening of coronary artery (CA) was (35.7 ±4.3) mm,the diameter of ascending aortic arch at the opening of brachiocephalic trunk (BCT) was (33.6 ±4.2) mm,the diameter of aortic arch between the BCT and the left common carotid artery (LCCA) was (29.4 ± 5.7) mm,the diameter of aortic arch between the LCCA and the left subclavian artery (LSA) was (27.6 ± 4.2) mm,the diameter of descending aortic at the opening of the LSA was (25.4 ± 4.5) mm,the diameter of the head BCT from aortic arch was (12.9 ±0.9) mm,the diameter of the head LCCA from aortic arch was (8.5 ± 0.7) mm,the diameter of the head LSA from aortic arch was (10.4 ± 1.1) mm,the length of aorta between the CA and the BCT was (53.3 ±12.5) mm,the length of aortic between the BCT and the LCCA was (4.7 ± 1.5) mm,the length of aortic between the LCCA and the LSA was (7.9 ± 2.6) mm,the length between the opening of BCT and the right subclavian artery (RSA) was (41.1 ± 8.2) mm,the length between the opening of LSA and the opening of left vertebral artery was (38.5 ±5.7) mm,the angle between the horizontal of BCT and the LCCA and the sagittal plane was (71.2 ± 7.2) °,the angle between the plane of LCCA and the LSA and the plane of sagittal was (31.1 ± 2.9)°.Conclusions The CT data of the thoracic aorta can be used as reference for production of stents and guide releasing the stents in endovascular repair.
6.Advances in research of pharmacological effects and formulation studies of linalool.
Dong-mei JIANG ; Yuan ZHU ; Jiang-nan YU ; Xi-ming XU
China Journal of Chinese Materia Medica 2015;40(18):3530-3533
Linalool, as a major volatile compound, is widely distributed in natural plant essential oil. In addition, it can also be artificially synthesized. Linalool is used frequently as an important ingredient of perfumes and household detergents. It is still employed in food flavor and industries. Besides, linalool has some positive effect on healthcare. Many studies have showed that linalool exhibited a variety of pharmacological activities, including analgesic, anxiolytic, sedative, anti-inflammatory, anti-tumor and anti-bacterial effects. Therefore, linalool will be a promising agent for clinical application. This article reviews the pharmacological effects and formulation studies of linalool so as to provide a theoretical basis for its further development and utilization.
Animals
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Anti-Anxiety Agents
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chemistry
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pharmacology
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Anti-Inflammatory Agents
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chemistry
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pharmacology
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Chemistry, Pharmaceutical
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Hypnotics and Sedatives
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chemistry
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pharmacology
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Monoterpenes
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chemistry
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pharmacology
7.Protection of Transcutaneous Acupoint Electrical Stimulation for Brain Injury Undergoing Intervention: a Clinical Observation.
Jun YUAN ; Yu WU ; Ji-yong LI ; Li ZHANG ; Xi CHEN ; He-xiang CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(8):971-974
OBJECTIVETo observe the effect of transcutaneous acupoint electrical stimulation (TAES) combined dexmedetomidine on hemodynamic of intracranial aneurysmal subarachnoid hemorrhage patients undergoing intervention, and their protection for brain Injury.
METHODSTotally 108 intracranial aneurysmal subarachnoid hemorrhage patients undergoing intervention were randomly assigned to the electroacupuncture (EA) group and the control group according to random digit table, 54 in each group. All patients were anesthetized with dexmedetomidine. Patients in the EA group were needled at bilateral Neiguan (PC6), Lieque (LU7), and Yunmen (LU2). Parameter setting was as follows: The dilatational wave at 1. 5 Hz, strength 2 - 4 mA, 30 min. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), and heart rate (HR) were compared between the two groups immediately after entry into the room (T0), after administration (T1), intubating (T2), resuscitation (T3), extubation (T4), and leaving the operating room (T5). Levels of S100β protein (S100β) and neuron specific enolase (NSE) were compared between the two groups at T0, immediately after surgery (T6), 6 h after operation (T7), 12 h after operation (T8), and 24 h after operation (T9).
RESULTSCompared with the same group at T0, SBP, DBP, MAP, and HR were significantly reduced in the two groups at T1-T5(P <0. 05), serum levels of S100β and NSE in the two groups were significantly increased at T6-T9 (P<0. 05). Compared with the control group at T1 - T5, SBP, DBP, MAP, and HR decreased in the EA group (P <0. 05). Compared with the control group at T6-T9, serum levels of S100β and NSE decreased in the EA group (P <0. 05).
CONCLUSIONTAES combined dexmedetomidine could effectively maintain stable hemodynamics of intracranial aneurysmal subarachnoid hemorrhage patients undergoing intervention, and regulate their serum levels of S100β and NSE.
Acupuncture Points ; Airway Extubation ; Blood Pressure ; Brain Injuries ; therapy ; Electric Stimulation ; Electroacupuncture ; Heart Rate ; Hemodynamics ; Humans ; Phosphopyruvate Hydratase ; S100 Calcium Binding Protein beta Subunit ; Transcutaneous Electric Nerve Stimulation
8.Advances in research of chemical constituents and pharmacological activities of common used spices.
Chao-nan SUN ; Yuan ZHU ; Xi-ming XU ; Jiang-nan YU
China Journal of Chinese Materia Medica 2014;39(21):4153-4158
Spices have enjoyed a long history and a worldwide application. Of particular interest is the pharmaceutical value of spices in addition to its basic seasoning function in cooking. Concretely, equipped with complex chemical compositions, spices are of significant importance in pharmacologic actions, like antioxidant, antibacterial, antitumor, as well as therapeutical effects in gastrointestinal disorders and cardiovascular disease. Although increasing evidences in support of its distinct role in the medical field has recently reported, little information is available for substantive, thorough and sophisticated researches on its chemical constituents and pharmacological activities, especially mechanism of these actions. Therefore, in popular wave of studies directed at a single spice, this review presents systematic studies on the chemical constituents and pharmacological activities associated with common used spices, together with current typical individual studies on functional mechanism, in order to pave the way for the exploitation and development of new medicines derived from the chemical compounds of spice (such as, piperine, curcumin, geniposide, cinnamaldehyde, cinnamic acid, linalool, estragole, perillaldehyde, syringic acid, crocin).
Anti-Infective Agents
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pharmacology
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Antineoplastic Agents
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pharmacology
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Antioxidants
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pharmacology
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Cardiovascular System
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drug effects
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Digestive System
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drug effects
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Spices
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analysis
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toxicity
10.Advances in novel carrier systems of chemical constituents from spice volatile oils.
Jia-jia ZHANG ; Yuan ZHU ; Jiang-nan YU ; Xi-ming XU
China Journal of Chinese Materia Medica 2015;40(20):3932-3936
Recent years, chemical constituents from spice volatile oils have gained worldwide concern owing to its multiple pharmacological effects and safety for using as the natural antibacterial agents. However, their poor dissolution, strong volatility, serious irritation, weak stability, easy oxidation and low bioavailability characteristics are the major obstacle in the preparation of effective oral formulation and practical application. Therefore, there is an urgent need to select a novel carrier system that can delivery the chemical constituents from spice volatile oils more efficiently with improving their stability as well as alleviating the irritation, and develop the functional food, health products and even medicine for exerting their pharmacological effects, which also is the focus and nodus of the research on their application. This review presents recent systematic studies on their novel carrier systems, including cyclodextrin inclusion complex, liposomes, nanoemulsions, nanoparticles, solid dispersion and so on, and summarizes the characteristics, application range and problems of each novel carrier systems, in order to provide some beneficial thoughts in further developing new products of chemical constituents from spice volatile oils.
Chemistry, Pharmaceutical
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instrumentation
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methods
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Drug Carriers
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chemistry
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Nanoparticles
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chemistry
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Oils, Volatile
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chemistry
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Plant Extracts
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chemistry
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Spices
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analysis