1.Startup flow of nurse workstation
Chinese Medical Equipment Journal 1989;0(03):-
Nurse workstation, a typical client program of "No.1 Military" project, is trailed and speculated with Oracle tools such as TOAD, and then the general startup flow mode for "No.1 Military" project can be determined, which is instructive for its maintenance and programming.
2.Two cases of acute pulmonary embolism in head and neck tumor surgery.
Yongchao ZHANG ; Rui WANG ; Lan MU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(2):177-178
A male patient with hypopharyngeal cancer accepted operation under general anesthesia. Sixth day after surgery in patient with sudden chest pain and obvious difficulty in breathing. Blood oxygen saturation of 90%. The electrocardiogram showed: ST-T change,Tv6 flat;blood gas analysis: pH 7. 491, PCO2 34. 1 mmHg, PO2 54. 7 mmHg; D-Dimer 3. 87 mg/L; white blood cell 17. 50 × 10(9)/L. CTPA showed: right pulmonary artery embolism,pulmonary infection. Another male patient with the right tonsil cancer accepted operation under general anesthesia. Fourth day of patient suddenly appear bosom frowsty and obvious difficulty in breathing. Blood oxygen sat- uration of 88%. Blood gas analysis: pH: 7. 48, PCO2 : 33 mmHg, PO2 : 57 mmHg; D-Dimer: 2. 97 mg/L; white blood cell:11. 80 × 10(9)/L. CTPA showed: the main pulmonary artery and right pulmonary artery branch embolism, pulmonary inflammation. Both were diagnosised as acute pulmonary embolism and recovered well after giving anticoagulant therapy in time.
Anesthesia, General
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Electrocardiography
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Fibrin Fibrinogen Degradation Products
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Humans
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Hypopharyngeal Neoplasms
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surgery
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Laryngeal Neoplasms
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surgery
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Male
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Oxygen
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Postoperative Complications
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Pulmonary Embolism
3.Effects of transcutaneous electrical stimulation on the expression of neurotrophin-3 and tumor necrosis factor-α in the ventral horn after spinal cord injury
Rui LI ; Xiaojiao LAN ; Ying RAO ; Xiao ZHANG
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(9):643-647
Objective To research the effects of transcutaneous electrical stimulation (TES) on the expression of neurotrophin-3 (NT-3) and tumor necrosis factor-α (TNF-a) in the ventral horn of rats' spinal cords and in the injured region after spinal cord injury (SCI),and to explore the effects of TES on neuron reconstruction and functional recovery and their mechanisms. Methods Forty-eight Wistar rats were selected and divided using stochastic methods into a model group and a TES group.Using Allen's method,a complete SCI model was created at T9.Rats of the TES group were given TES treatment.Basso-Beattie-Brasnahan ( BBB ) ratings were used to evaluate locomotor function.Both groups were sampled at 1,3,5 and 7 days after the operation.Immunohistochemical techniques were used to detect the expression of NT-3 and TNF-α in the rats' spinal cords at the different time points. Results The post-operative BBB ratings of both groups showed an increasing trend.In the TES group the improvement was significantly better at 5 and 7 days than in the model group.The expression of NT-3 immuno-positive cells increased in both groups,peaking at 5 days post-operation,then declining at day 7.The expression of NT-3 positive cells at days 5 and 7 had increased significantly more in the TES group than in the model group.TNF-α immuno-positive expression increased with time in both groups,but in the TES group the expression increased substantially less than in the model group.At days 5 and 7 post-operation,the expression was significantly lower than in the model group. Conclusions TES can promote NT-3 expression in rats with SCI,inhibit the increase in TNF-α expression,and aid repair and reconstruction of neurons and related functional recovery.
4.(99m)Tc-YIGSR as a receptor tracer in imaging the Ehrlich ascites tumor-bearing mice as compared with (99m)Tc-MIBI.
Jia, HU ; Guangming, QIN ; Yongxue, ZHANG ; Rui, AN ; Xiaoli, LAN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(4):471-4
The validity of (99m)Tc-YIGSR, a novel receptor radio-tracer, in imaging the Ehrlich ascites tumor was evaluated. YIGSR, a pentapeptide of laminin, was labeled with (99m)Tc by using a bifunctional chelator S-Acetly-NH(3)-MAG(3). The MIBI was labeled with (99m)Tc by following the kit instruction. The mice of tumor group were intravenously injected 1-2 mCi of (99m)Tc-YIGSR or (99m)Tc-MIBI via caudal vein, immobilized and imaged under a Gamma camera. The same procedure was performed in mice of blockade group, in which the unlabeled YIGSR was previously injected to block the receptor-recognition sites, and inflammation group serving as control. The reverse-phase Sep-Pak C(18) chromatogram was found to have an essentially complete conjugation between YIGSR and S-Acetly-NH(3)-MAG(3). The conjugated YIGSR could be radio-labeled successfully with (99m)Tc at room temperature and neutral pH, with a radio-labeling yield of 62%. Without the chelator S-Acetly-NH(3)-MAG(3), the YIGSR was labeled with (99m)Tc at an efficiency of 4%. The imagological study revealed obvious tumor accumulation of (99m)Tc-YIGSR 15 min after the injection, and the uptake peaked after 3 h with a tumor-to-muscle ratio (T/M) of 11.36. The radio-tracer was slowly cleared up and resulted in a T/M of 3.01 at the 8th h after the injection. As for blocked group, the tumor uptake of radiotracer was significantly lower, with the highest T/M being 4.61 after 3 h and 0.89 after 8 h. The T/M was 3.72 at the 3rd h and 1.29 at the 8th h after the (99m)Tc-YIGSR injection in the inflammatory group. The T/M was significantly higher in tumor group than in inflammatory group or control group (P<0.001). In the 99mTc-MIBI group, the T/M was 1.40 at the 3rd h and 0.55 at the 8th h after the injection, which showed a significant difference as compared with (99m)Tc-YIGSR (P<0.001). It is concluded that YIGSR can be successfully radiolabelled by using S-Acetly-NH(3)-MAG(3). (99m)Tc-YIGSR has many advantages in tumor imaging, such as quick and clear visualization, high sensitivity and specificity, and satisfactory target/non-target ratio (N/NT). It promises to be tumor radio-tracer.
Carcinoma, Ehrlich Tumor/*radionuclide imaging
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Radioactive Tracers
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Radiopharmaceuticals/*diagnostic use
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Receptors, Laminin/*metabolism
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Technetium Tc 99m Mertiatide/*diagnostic use
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Technetium Tc 99m Sestamibi/*diagnostic use
5.Recent progress of dry powder inhalation of proteins and peptides.
Jie-yu ZHOU ; Lan ZHANG ; Shi-rui MAO
Acta Pharmaceutica Sinica 2015;50(7):814-823
To provide theoretical and practical basis for the successful formulation design of physically-mixed inhalation dry powder of proteins and peptides, related references were collected, analyzed and summarized. In this review drug micronization technology and commonly used carriers for inhalation dry powder preparation were introduced. For proteins and peptides, supercritical fluid technology and spray-drying are more suitable because of their capabilities of keeping drug activity. Being approved by U. S. Food and Drug Administration, lactose has been extensively used as carriers in many inhalation products. Formulation and process factors influencing drug deposition in the lung, including carrier properties, drug-carrier ratio, blending order, mixing methods, mixing time and the interaction between drug and carrier, were elucidated. The size, shape and surface properties of carries all influence the interaction between drug and carrier. Besides, influence of micromeritic properties of the dry powder, such as particle size, shape, density, flowability, charge, dispersibility and hygroscopicity, on drug deposition in the lung was elaborated. Among these particle size plays the most crucial role in particle deposition in the lung. Moreover, based on the mechanisms of powder dispersity, some strategies to improve drug lung deposition were put forward, such as adding carrier fines, adding adhesive-controlling materials and reprocessing micronized drug. In order to design physically-mixed inhalation dry powder for proteins and peptides with high lung deposition, it is essential to study drug-carriers interactions systematically and illustrate the potential influence of formulation, process parameters and micromeritic properties of the powder.
Administration, Inhalation
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Drug Carriers
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chemistry
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Dry Powder Inhalers
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Lactose
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chemistry
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Particle Size
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Peptides
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administration & dosage
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Powders
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administration & dosage
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Surface Properties
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Technology, Pharmaceutical
7.The experimental observation on the repairing spinal cord injury by olfactory ensheathing cells allograft of different sources
Chun ZHANG ; Xijing HE ; Rui CHANG ; Binshang LAN ; Haopeng LI
Journal of Pharmaceutical Analysis 2007;19(2):212-216
Objecttive To observe the repaired effect of distinct source olfactory ensheathing cells (OECs) on spinal cord injury (SCI) rats. Methods These OECs were dissociated from olfactory bulb and olfactory mucosa of SD rats and transplanted to the injuried region of spinal cord injury rats. The function of nerve, motor evoked potential of hind legs and the histopathlogical diversities of injuried spinal cord were observed. Results The OECs grafts into the SCI area could survive longer time. The BBB scale, incubation stage of EP and histopathologic manifestations showed that the group with transplanted OECs regained more improvement in hindlimb than the control group. Conclusion The OECs of two sources have the same ability to regain and improve the axonal function which can promote axons regeneration of SCI.
8.Preparation of budesonide sustained-release dry powder for inhalation and influence of lactose content.
Zheng-lin LIANG ; Xiu-hua WANG ; Rui NI ; Lan ZHANG ; Uwe MUENSTER ; Shi-rui MAO
Acta Pharmaceutica Sinica 2015;50(9):1180-1185
Using high pressure homogenization method combined with spray-drying, budesonide-loaded chitosan microparticles were prepared and the in vitro release profile was investigated. The microparticles were then blended with lactose using a vortex mixer, influence of mixing speed, mixing time on drug recovery rate and content homogeneity were investigated. Meanwhile, influence of lactose content on drug recovery rate, content homogeneity, powder flowability and in vitro deposition were studied. It turned out that budesonide was released from the microparicles in a sustained manner, with fine particle fraction as high as 46.0%, but the powder flowability was poor. After blending with 10 times of lactose, the drug recovery rate was 96.5%, with relative standard deviation of drug content 2.5%, and fine particle fraction of the formulation increased to 59.6% with good flowability. It's demonstrated that using a vortex mixer, budesonide sustained-release dry powder for inhalation with good recovery and content homogeneity could be prepared, the formulation had good flowability and was suitable for pulmonary inhaling.
Administration, Inhalation
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Budesonide
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chemistry
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Chemistry, Pharmaceutical
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Chitosan
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Delayed-Action Preparations
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chemistry
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Drug Carriers
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Lactose
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chemistry
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Particle Size
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Powders
9.Effect of albiflorin on behavior and hypothalamic-pituitary-adrenocortical axis in olfactory bulbectomized rats
Lan CHEN ; Zhenghua GONG ; Rui XUE ; Tingting ZHANG ; Yunfeng LI ; Hao HONG ; Youzhi ZHANG
Chinese Journal of Pharmacology and Toxicology 2014;(3):340-344
OBJECTIVE Toexploretheantidepressanteffectsofalbiflorinandtheinvolvementof hypothalamic-pituitary-adrenocortical (HPA) axis function in its antidepressant potency.METHODS Two weeks after the olfactory bulbectomized (OB)surgery,albiflorin (2.5 ,5.0 ,10.0 mg·kg -1 ,ig) and imipramine 5.0 mg·kg -1 (ig)were given to rats twice a day for 14 d.The open-field test was con-ducted to evaluate the move ment distance,move ment ti me and velocity of olfactory bulbecto mized rats and sham-operated rats.The serum levels of corticosterone(CORT)and adrenocorticotropic hormone (ACTH)in rats were measured by the enzyme linked immunosorbent assay.The expression levels of glucocorticoids receptor (GR)in the hippocampus of the rats were analyzed using Western blot proce-dures.RESULTS Comparedwithsham-operatedrats,movementdistance,movementtimeandveloci-ty of the OB rats were significantly increased (P<0.01 ).Albiflorin 1 0.0 mg·kg -1 significantly reduced the movement distance,movement time and velocity of OB rats (P<0.05)after being given for 7 d. The movement properties were significantly reduced by albiflorin 5.0 and 10.0 mg·kg -1 when given for 14 d (P<0.05).The OB rats demonstrated significantly increased levels of serum CORT and ACTH (P<0.01 )and decreased GR expression in the hippocampus (P<0.01 ).Albiflorin 2.5,5.0 and 10.0 mg·kg -1 significantly reduced the serum CORT and ACTH levels (P<0.05),while albiflorin 5.0 and10.0mg·kg-1increasedtheexpressionofhippocampalGR(P<0.05).CONCLUSION Albiflorin may have re markable behavioral antidepressant effects on olfactory rats and one of the related mecha-nis ms may be its regulation of the hyperactivity of HPA axis function.
10.Clinical evaluation of modified lateral approach to sciatic nerve block guided by ultrasound and nerve stimulator for foot surgery
Guang YANG ; Rui XIANG ; Wencan WANG ; Chenzhu YIN ; Jin ZHANG ; Lan ZHANG
Chinese Journal of Anesthesiology 2014;34(7):836-838
Objective To evaluate the feasibility of modified lateral approach to sciatic nerve block guided by ultrasound and nerve stimulator for foot surgery.Methods Sixty-two patients of both sexes,aged 18-60 yr,with body mass index < 30 kg/m2,of ASA physical status Ⅰ-Ⅲ,scheduled for elective foot surgery,were included in the study.Anesthesia was induced with iv propofol 2-4 mg/kg and sufentanil 0.2-0.4 μg/kg.The laryngeal mask airway was inserted and the patients were mechanically ventilated.Sevoflurane was inhaled continuously.Modified lateral approach to sciatic nerve block was performed with 0.3 % ropivacaine 30 ml under the guidance of the ultrasound combined with nerve stimulator.Rocuronium 0.6 mg/kg and propofol 1-2 mg· kg-1 · h-1 were administered after completion of sciatic nerve block.Additional sufentanil 0.10-0.15 μg/kg was intravenously injected immediately after skin incision and rocuronium 0.15 mg/kg was injected intravenously at 1 h intervals.The depth of puncture and time for puncture and success rate of puncture were recorded.Sensory block was assessed after the patients regained consciousness completely.Nerve injury,hematoma at the puncture site and infection within 72 h after surgery were recorded.Results The time for puncture was (40 ± 17) s.The depth of puncture was (5.8 ± 0.7) cm.The success rate of puncture at first attempt was 77 %.The rate of complete sensory block was 100%.The post-operative follow-up showed that no patients developed nerve injury,hematoma or infection.Conclusion Modified lateral approach to sciatic nerve block guided by ultrasound and nerve stimulator is safe and effective for foot surgery.