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OBJECTIVE To separate and identif y the chemical constituen ts in 70％ ethanol extract of Sabia parviflora ，and to preliminarily evaluate their in vitro antioxidant activity. METHODS The chemical constituents were separated and purified by silica gel，ODS reversed-phase silica gel ，Sephadex-LH20 column and preparative high performance liquid chromatography. The structures of the isolated compounds were identified by 1H-NMR，13C-NMR and ESI-MS. The in vitro antioxidant activities of the compounds were investigated by 2，2-diphenyl-1-picrylhydrazyl radical （DPPH·），2，2′-azino-bis（3-ethylbenzothiazoline-6- sulfonate）diammonium radical （ABST+）and hydroxyl radical （OH·）. RESULTS A total of 9 compounds were isolated from the 70％ ethanol extracts of S. parviflora . They were identified as rutin （1），diiononyl phthalate （2），dibutyl phthalate （3），vomifoliol （4），rhododendrol（5），quercetin-3-O-gentiobioside（6），narcissoside（7），kaempferol-3-O-rutinoside（8）and bonaroside （9）. The in vitro antioxidant results showed that compound 1-9 showed certain in vitro antioxidant activity ，and the half scavenging concentrations of compound 1，6，7 and 8 to DPPH ·，ABST+，OH·were lower than 70 μg/mL. CONCLUSIONS Vomifoliol， rhododendrol and bonaroside are isolated from S. parviflora for the first time ，and rutin ，quercetin-3-O-gentiobioside，narcissoside and kaempferol- 3-O-rutinoside show good in vitro antioxidant activity.
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Objective:To explore the effect of self-made simple gastric simulation in nursing clinical teaching of machine gastric lavage.Methods:A total of 90 subjects were selected from the four-year nursing undergraduates of Dalian Medical University from July 2018 to December 2019 by the convenience sampling method. According to the chronological order, they were divided into the control group and the experimental group by different teaching modes with 45 cases in each group.Control group from July 2018 to March 2019 received the traditional teaching mode, experimental group from April 2019 to December 2019 received the self-made simple simulation of the stomach in gastric lavage machine surgery nursing clinical teaching pattern.After the internship, teaching quality was evaluated by gastric lavage machine theory and operation of nursing students, and the teaching effect of nursing students' satisfaction questionnaire was investigated.Results:The theoretical and operational scores of the students were (86.89±3.79), (91.33±2.15) points in the experimental group,and (74.64±7.78), (76.84±5.71) points in the control group, the differences between the two groups were statistically significant ( t values were 9.48, 15.92, P<0.01). Students to stimulate interest in learning, students participate in the trial group, ability, improve the learning initiative, increase the clinical thinking ability, empathy and compassion, deepen nursing connotation, like teachers teaching form seven dimensions of satisfaction score were (4.26±0.53), (4.18 ±0.57), (4.16±0.55), (4.21±0.51), (4.13±0.54), (4.06±0.59), (4.24±0.54) points in the experimental group, and (2.66±0.92), (2.61±0.85), (2.35±0.83), (2.72±0.89), (2.45±0.81), (2.70±0.89), (2.59±0.86) points in the control group, the differences between the two groups were statistically significant ( t values were 8.55-11.99, P<0.01). Conclusions:The clinical teaching application model of self-made simple gastric simulation in machine gastric lavage can significantly improve the quality and satisfaction of clinical nursing teaching.
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【Objective】 To analyze the preferences for blood donation souvenirs among blood donors, so as to strengthen the publicity and recruitment of blood donation and elevate the satisfaction of blood donors. 【Methods】 The souvenirs exchanged by blood donors on the souvenir delivering platform during 2020 were analyzed. 【Results】 Statistical analysis showed that age and gender had significant influence on exchange preference for blood donation souvenirs. Blood donors aged 18 to 29 preferred E-vouchers and digital appliances for souvenir exchange while donors over 30 years old preferred home textiles and foodstuffs. Men preferred digital appliances, outdoor sports and E-vouchers, while women preferred maternal and child health, home textile and beauty care for souvenirs. 【Conclusion】 Providing targeted souvenirs for blood donors optimizes blood donation experience and satisfaction of blood donors, and plays a positive role in recruiting new blood donors and retaining regular blood donors.
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It is an important measure to establish an effective communication mechanism for filling in the front page of medical records to ensure the good operation of diagnosis-related groups. Taking cerebral infarction as an example, the authors carried out the pilot work of multidisciplinary cooperation mode based on disease types around its coding axis. The multi-disciplinary assistance model could provide a good platform for communication and learning among multiple disciplines, break the barriers between disciplines, improve the quality of the front page and medical record writing of clinicians, and improve the quality and efficiency of coders′ coding.
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Objective To evaluate the application of self-made-dispensing-ampoule car in the medicine dispensing for venous transfusion. Methods The self-made-dispensing-ampoule car made based on the ergonomics is a temporary carrier device for medical waste in the need of the whole process of dispensing process. The overall exterior is made of 304 stainless steel, separated into 2 layers. The Upper layer has a frame with integral medicine glass hole made of stainless steel, which can be dismantled from the upper layer. The medicine glasses are small empty medicine bottles used to hold the dispensed medicine; while the lower layer is a slide platform which can put on 3 medical waste classification boxes. The bottom has universal wheels with brakes to help the car move and stop. To focus on 42 emergency department nurses using the device, to analyze their error rate of medicine dispensing, the dispensing time for the same batch of patients with same dosages and shuttle time from dispensing car to buffer room to pour medical waste and compare the data the year before and the year using the device. Results After using it, the dispensing error occurrence rate and nurses dispensing time and shuttle times of pouring waste were 0.31?(3/97 785) , (70.08±3.28) min/time, two times, which were all obviously lower than 1.95? (18/92 095) , (110.04 ± 6.91) min/time, 30 times without using it ( χ2=11.64, 204.16, t=71.70, all P< 0.01) . Conclusion Using the dispensing ampoule car can optimize the dispensing process in dispensing of venous transfusion, ensure patients with safe venous transfusion, raise the efficiency of nurses saving time and efforts.
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Objective@#To evaluate the application of self-made-dispensing-ampoule car in the medicine dispensing for venous transfusion.@*Methods@#The self-made-dispensing-ampoule car made based on the ergonomics is a temporary carrier device for medical waste in the need of the whole process of dispensing process. The overall exterior is made of 304 stainless steel, separated into 2 layers. The Upper layer has a frame with integral medicine glass hole made of stainless steel, which can be dismantled from the upper layer. The medicine glasses are small empty medicine bottles used to hold the dispensed medicine; while the lower layer is a slide platform which can put on 3 medical waste classification boxes. The bottom has universal wheels with brakes to help the car move and stop. To focus on 42 emergency department nurses using the device, to analyze their error rate of medicine dispensing, the dispensing time for the same batch of patients with same dosages and shuttle time from dispensing car to buffer room to pour medical waste and compare the data the year before and the year using the device.@*Results@#After using it, the dispensing error occurrence rate and nurses dispensing time and shuttle times of pouring waste were 0.31 ‱ (3/97 785), (70.08±3.28) min/time, two times, which were all obviously lower than 1.95‱ (18/92 095), (110.04±6.91) min/time, 30 times without using it (χ2=11.64, 204.16, t=71.70, all P<0.01).@*Conclusion@#Using the dispensing ampoule car can optimize the dispensing process in dispensing of venous transfusion, ensure patients with safe venous transfusion, raise the efficiency of nurses saving time and efforts.
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Objective@#To discuss the safety and efficacy of simultaneous procedures of vibrant soundbridge implantation and auricular reconstruction with congenital external and middle ear malformation.@*Methods@#This is a retrospective study, including 6 patients, 5 boys and 1 girl, aged 7-12 years. All patients received simultaneous operations of vibrant soundbridge implantation and auricular reconstruction. The mean preoperative air conduction threshold was 64.8 dB HL at 0.5, 1, 2, and 4 kHz. The VSB was placed in the third stage of auricle reconstruction, if the soft tissue expansion was performed; otherwise, the VSB was implanted in the second stage. The satisfaction with reconstructed auricle, surgical complications, hearing improvement and speech discrimination scores were evaluated 6 months after surgery.@*Results@#All patients and their families reported satisfaction with their reconstructed auricle. There was no complications, including cartilage framework exposion, infection, hematoma, skin flap necrosis, facial paralysis, tinnitus, vertigo or others. Post-operatively, mean VSB-aided hearing threshold was 36.7 dB HL, which was reduced by 28.1 dB HL. The mean speech discrimination scores measured in a sound field with a presentation level of 65 dB SPL and 80 dB SPL were improved.@*Conclusions@#The simultaneous operations of auricle reconstruction and Vibrant Soundbridge implantation is an alternative method for patients with congenital microtia and atresia.
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Objective: To evaluate the therapeutic effects of visual standard channel combined with F4.8 visual puncture super-mini percutaneous nephrolithotomy [SMP] on multiple renal calculi
Methods: The clinical data of 46 patients with multiple renal calculi treated in Affiliated Hospital of Hebei University from October 2015 to September 2016 were retrospectively analyzed. There were 28 males and 18 females aged from 25 to 65 years old, with an average of 42.6. The stone diameters were 3.0-5.2 cm, [4.3 +/- 0.8] cm on average. F4.8 visual puncture-assisted balloon expansion was used to establish a standard channel. After visible stones were removed through nephroscopy combined with ultrasound lithotripsy, the stones of other parts were treated through F4.8 visual puncture SMP with holmium laser. Indices such as the total time of channel establishment, surgical time, decreased value of hemoglobin, phase-I stone clearance rate and surgical complications were summarized
Results: Single standard channel was successfully established in all cases with the assistance of F4.8 visual puncture, of whom 24 were combined with a single microchannel, 16 were combined with double microchannels, and six were combined with three microchannels. All patients were placed with nephrostomy tube which was not placed in the microchannels. Both F5 double J tubes were placed after surgery. The time for establishing a standard channel through F4.8 visual puncture was [6.8 +/- 1.8] min, and that for establishing a single F4.8 visual puncture microchannel was [4.5 +/- 0.9] min. The surgical time was [92 +/- 15] min. The phase-I stone clearance rate was 91.3% [42/46], and the decreased value of hemoglobin was [12.21 +/- 2.5] g/L. There were 8 cases of postoperative fever which was relieved after anti-inflammatory treatment. Four cases had 0.5-0.8 cm of stone residue in the lower calyx, and all stones were discharged one month after surgery by in vitro shock wave lithotripsy combined with position nephrolithotomy, without stone streets, delayed bleeding, peripheral organ damage or urethral injury
Conclusion: Combining visual standard channel with F4.8 visual puncture SMP for the treatment of multiple renal calculi had the advantages of reducing the number of large channels, high rate of stone clearance, safety and reliability and mild complications. The established F4.8 visual puncture channel was safer and more accurate
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Humans , Male , Female , Adult , Middle Aged , Kidney Calculi/surgery , Nephrolithotomy, Percutaneous/standards , Retrospective StudiesABSTRACT
Objective To evaluate the efficacy and safety of percutaneous micro-channel approach in treatment of pelvis side cyst and ureteropelvic junction obstruction simultaneously. Methods 32 patients with unilateral solitary parapelvic cyst complicated with UPJO, including 25 cases with ipsilateral kidney stones. After percutaneous holmium laser lithotripsy for patients complicated with calculi, then performed incision and drainage through the channels for parapelvic cyst by holmium laser, and antegrade high pressure balloon dilatation for UPJO, drainage by hippocampal tube in 3 ~ 6 months postoperatively. The operation time of fenestration drainage of cyst, narrow hypertensive dilatation and postoperative hospital stay were analyzed. Results Compared with 1 month (46.17 ± 6.33), 3 months (40.47 ± 6.06), 6 months (33.81 ± 7.05), 9 months (28.95 ± 7.92) after surgery, there was a marked improvement of the separation coefficient of renal convergence, the difference was statistically significant (P < 0.05). And compared with 6 months after surgery, the data of 9 months after surgery has statistical significant differences (P < 0.05). The separation coefficient of renal convergence decreases as time goes on. Conclusions Percutaneous micro-channel approach in treatment of pelvis side cyst and ureteropelvic junction obstruction by the same time can effectively relieve symptoms and decrease the separation coefficient of renal convergence. It is safe and effective.
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Objective To investigate the clinical efficacy and safety of visual standard channel combined with visual ultrafine channel PCNL precision puncture in treatment of complex renal calculi. Methods From June 2015 to October 2016, 48 cases of complicated renal calculi were treated with multi-channel lithotripsy with visual standard channel ultrasonic pneumatic lithotripsy combined with visual superfine channel PCNL precision puncture holmium laser lithotripsy. Including 10 cases of staghorn stone, 38 cases of multiple renal stones. Results 110 channels were established in 48 patients. 4 cases of preoperative renal insufficiency with infection in the puncture found in the pus and stones load larger, intraoperative diarrhea and PCNL simple treatment of obstruction site stones; 44 cases to complete one of the surgery: There were single channel established in every one of 5 cases, and double channels established in every one of 24 cases, three channels in established in every one of 15 cases; There were two cases of surgery in 8 cases and there were 12 new channels established. The average time of unilateral first operation was 75 (35 ~ 125) min. The first clearance rate was 79.2% (38/48), and the total clearance rate of postoperative stone was 87.5% (42/48). 6 cases of residual stone combined with ESWL and drug row of stone, followed up for 3 months, 6 cases of stone row net, the total stone clearance rate of 100.0% (48/48). Two consecutive postoperative no sepsis, bleeding, ureteral injury and other serious complications. Conclusions Visual standard channel combined with visual superfine channel PCNL precise puncture for the treatment of complex renal calculi is safe and effective, with high fruiting rate and low complication, which can be popularized in clinical practice.
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Objective To explore the feasibility and safety of visualization puncture combined with flexible ureteroscopy in the treatment of lower calyx stones.Method Visualization puncture combined with flexible ureteroscopy to treat the lower calyx stones was done in our center from January to August 2016 in our hospital.32 cases of patients were enrolled to have a retrospective analysis.There were 18 males and 14 females,aged from 25 to 65 years,with an average age of 43 years.The diameter of stone was 1.0-2.0 cm,with an average of (1.4 ± 0.6) cm.We used general anesthesia and then adjusted the surgery bed to operation side lateral elevation was 30 °-35.Flexible ureteroscopy with 200μm holmium laser was used firstly to break calculi as much as possible.Ultrasound-guided F4.8 visualization puncture system was used to establish F4.8 channel.The power option was 2001μm hohnium laser to crush calculus of the renal calculi to treat the calculus of the distal end of soft lens which still can not be touched by ureteroscopy.Routine nephrostomy tube was not placed.The soft ureter sheath F5 double-J tube,and indwelling balloon catheter were routinely placed.We removed the catheter after 1-2 days and the double J tube after 4 to 6 weeks.Results The flexible ureteroscopy lithotripsy operation time was 8-25 mins in all of the 32 patients.Visualization puncture channels were successfully established in 3-7 mins,and the visualized puncture stone search rate of 100％ (32/32).The success rate of first stage lithotripsy was 93.8％ (30/32).Two cases of lower calyx stones diverticulum diverted to PNCL due to poor visibility by bleeding.The operation time was 30-60 mins and the average of 45 mins.KUB review at day one after the surgery showed that there were residual stones in 5 cases.The stone free rate at one month after the surgery is 100.0％.The average postoperative hospital stay was (2.0 ± 1.5) days.There were uo bleeding,ureteral avulsion and perforation,septic shock,pleural effusion and intestinal injury and other serious complications.Conclusions Navigation ultrasound-guided visualization puncture combined with flexible ureteroscopy is safe and effective to treat lower calyx stones.
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Objective To analyze the relationship between pulse wave velocity (PWV)in young and middle-aged normal body mass patients with mild -moderate hypertensive and risk factors of cardiovascular diseases,and to explore the main factors influencing large arterial elasticity.Methods PWV were measured by Complior (Colson, France).Systolic blood pressure (SBP)and diastolic blood pressure were measured and fasting blood glucose,blood lipid were tested at the same time.The results was analyzed by correlation and multiple regression method.Results (1)Patients with hypertension had statistically significant higher cfPWV than nonhypertensive cases(P <0.01).(2) Correlation analysis showed that the cfPWV were positively related to age,systolic pressure,diastolic pressure,pres-sure difference(r =0.401,0.467,0.289,0.278,P =0.001,0.000,0.020);Deleting the factors of age,abdomen circumference and BMI,the cfPWV was still positively related to systolic pressure,diastolic pressure and pressure differences(r =0.417,0.297,0.315,P =0.001,0.018,0.012).Multiple regression analysis showed that age,systol-ic pressure were mostly related to cfPWV(t =3.945,3.481,P =0.000,0.001).Conclusion Artery elastic function in young and middle aged people is obviously lower in patients with hypertension.cfPWV has strong positive relation with age and systolic pressure.
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Objective To explore the application of medical bottle opener box (authorized patent for utility model) in nurses dispensing operations of opening the plastic bottle cap. Methods Put five self-made medical bottle opener box sample into the hospital emergency department for use. The nurses were divided into control group and experimental group according to the different way of open bottle caps; both groups were 33 nurses who did not turn out of emergency department 2 years nurses for a common object of study. The control group was the 33 nurses adopting the method of unarmed open medicine plastic bottle cap from April 2013 to March 2014. The experimental group was the 33 nurses with medical bottle opener box to open medicine plastic bottle caps from March 2014 to March 2015. The method of comparing two groups was to compare the nurse hands skin wear parts and wear symptoms for opening bottle caps, and make the nurses′satisfaction survey. Results For two groups, the nurse hands skin wear parts were in right hand, index finger and thumb;the number of nurses with finger thick skin in experimental group was lower than that in control group [21.2%(7/33) vs. 78.8%(26/33)], and there was significant difference,χ2=21.87, P<0.05.The number of pain [12.1%(4/33) vs. 54.5%(18/33)] and peeling [15.2%(5/33) vs.69.7%(23/33)] in experimental group were lower than those in control group, and there were significant differences, χ2=13.36, 20.09, P < 0.05. The experimental group eliminated the blisters and scratches, avoided hand bleeding trauma. The nurses′overall satisfaction in experimental group was 93.9% (31/33), and 63.6% (21/33) in control group,and there was significant difference, χ2=9.06, P<0.05. Conclusions Nurses using medical bottle opener box when opening the medicine bottle cap can relieve and reduce occupational injury on the finger skin of nurses, improve the nurse hand skin comfort, provide convenient operation safety, it is worth promoting.
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A total of 58 patients with simple septic shock were recruited from intensive care unit and divided into control group (n =28) and treatment group (n =30) according to treatment modalities.The control group was routinely treated.The treatment group received continuous veno-venous hemofiltration (CVVH) for 10-14 days plus routine measures.After 3 days,the score of acute physiology and chronic health evaluation-Ⅱ (APACHE-Ⅱ) of the treatment group was better than that of the control group (P ＜ 0.01).And sequential organ failure assessment (SOFA),left ventricular end diastolic diameter (LVEDD),left ventricular end systolic diameter (LVEDS) and left ventricular ejection fraction (LVEF) improved significantly (P ＜ 0.05).And the relevant blood biochemical parameters improved significantly better than the control group (P ＜ 0.05).In the group CVVH,there were mortality (n =7,23％) and multiple organ failure (MODS) (n =6,20％) ; In the control group,mortality (n =14,50％) and MODS (n =13,46％).The mortality rate had inter-group differences of statistical significance (x2 =4.38,P ＜0.05).Thus early volume resuscitation plus CVVH had excellent curative efficacies for septic shock.
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Objective To construct the recombinant rAAV2-hGAD65 vector and detect its function both in vitro and in vivo. Methods The cDNA of human glutamic acid decarboxylase 2 (hGAD65) gene, which was one of gamma-aminobutyric acid (GABA) synthetase, cloned by the method of RT-PCR, was subcloned into the adeno-associated virus (AAV) vector and formed the recombinant vector of AAV-hGAD65 (rAAV2-hGAD65). The recombinant vector was packaged by the AAV Helper-Free System and its titer was detected. The primary fibroblast, cultured from the rat lung, was transfected by the rAAV2-hGAD65. The expression of the hGAD65 in fibroblast was detected by immunohistochemical method and the level of GABA in the media was assayed by high performance liquid chromatograph (HPLC). In vivo, the hGAD65 was detected by immunohistochemical method in STN and the concentration of the GABA in the reticular part of substantia nigra (SNr) was assayed by HPLC after the rAAV2-hGAD65 was injected into the subthalamic nucleus (STN) by the stereotaxic method. Results The sequence of hGAD65 cDNA was in accordance with that in the Genebank. The amino acid sequence of hGAD65 had no mutation and the titer of rAAV2-hGAD65 was reached 4.5 ×10~(11) per milliliter. The efficiency of infection to the rat primary firoblasts was 80%, and the concentration of GABA in the media of fibroblasts was (45.66±6.07)nmol/L per liter. In vivo, hGAD65 could be detected in STN, and the concentrateion of the GABA in the SNr was increased from (5.66±1.07)nmol/g to (12.66±2.59)nmol/g.Conclusion The cDNA of hGAD65 was cloned by RT-PCR and the recombinant vector of rAAV2-hGAD65 was constructed. The AAV can infect the primary fibroblast in vitro and the hGAD65 can catalyse the glutamic acic to GABA. In vivo, the concentration of GABA in the SNr was heighten after the rAAV2-hGAD65 was injected into the STN.
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Objective To explore the mechanisms of trafficking and signaling of serotonin 1A receptor(5-HT_(1A))and its spatiotemporal distribution in living cells.Methods The mouse 5-HT_(1A) gene amplified by RT-PCR was recombined into pEGFP-N1 vector and the EGFP coding sequence was located in-frame at the C-terminal end of the 5-HT_(1A) receptor.The 5-HT_(1A)-EGFP was transfected into neuron-like PC12 cells as well as HEK293.The transfected cells were visualized using confocal microscopy,the mobility of 5-HT_(1A)-EGFP was monitored by live measurements and fluorescence recovery after photobleaching.Results The 5-HT_(1A) gene was identitical with the published gene sequence NM_008308.4 and a 5-HT_(1A)-EGFP fusion construct was created.After stable transfection of the plasimd into a PC12 cell line and analysis with a confocal laser scanning microscopy,the EGFP-tagged 5-HT_(1A) was predominantly associated with the plasma membrane,but some intracellular vesicles in the perinuclear region also contained the fusion protein.The predominant localization of 5-HT_(1A)-EGFP at the plasma membrane was confirmed in transiently transfected HEK293 cells.Bleached fluorescence was partialy recovered in 100 seconds,indicating that the 5-HT_(1A)-EGFP was mobiled on the membrane.Conclusion Spatiotemporal distribution and mobility of 5-HT_(1A) tagged with EGFP can be monitored in the 5-HT_(1A)-EGFP stable PC12 cell line,which could be an excellent neuron-like experimental cell model for research of 5-HT_(1A) trafficking and signaling.
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Objective To compare the sensitivities of the stimulation effect of human cord blood mesenchymal stem cells(CB-MSCs) and CB-MSCs of neuronal differentiation to lymphocytes(LCs) detected with carboxyfluorescein didcetate(CFSE) and MTT. Methods To prepare LCs from SD rat and divided into four group stimulating cells: 1. CB-MSCs;2. Dif-CB-HSCs;3. SH-SY5Y(positive control);4. Auto-LC(negative control).Stimulating cells were respectively Co-cultured with LCs. The proliferation of LCs was detected with MTT and CFSE ( n =3). Results CB-MSCs and Dif-CB-HSCs stimulated LCs to proliferate more weakly than positive control detected with MTT and CFSE. The quantity of proliferation of lymphocytes Co-cultured with CB-MSCs and Dif-CB-HSCs were higher than that of Auto-LC detected with CFSE. But MTT OD value of CB-MSCs and Dif-CB-HSCs was a little lower than that of Auto-LC. Statistical analysis results showed no significant difference.Conclusion CFSE can reflect proliferation status of lymphocytes better than MTT. CFSE shows more advantages in practical use.
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Objective To study the role of phosphorylation at Serine 129 in regulating the neurotoxicity of ?-synuclein. Methods Wild type and phosphomimic mutant ?-synuclein genes were over-expressed in mouse dopaminergic cells MN9D using retrovirus. The cell viability was examined using CCK-8 assay and cell morphology was observed by immunofluorescence microscopy. Results The result of real time PCR showed that WT/?-SYN and S129D/?-SYN genes were overexpressed in MN9D as compared to uninfected MN9D and vector control group(P
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Objective To investigate the effect of Desert Hedgehog on direct differentiation of neural progenitor cells(NPCs) cultured from embryonic mesencephalon in the rats.Methods We infected DHH into COS7,NIH/3T3 and 9L cells,and detected the expression of DHH in the cells with immunofluorescence,real-time PCR and Western blot.All of the three cells were co-cultured with NPCs isolated from ventral mesencephalon in embryonic SD rats(E13.5) respectively.Immunoreactivities of tyrosine hydroxylase(TH) was detected by immunocytochemistry after 10 days.Results The expression of DHH in COS7,NIH/3T3 and 9L cells was remarkably detected,but few TH-positive cells were found in the three co-cultral systems at the 10th day.Conclusion The protein derived from DHH itself does not show any inductive effect on the differentiation of NPCs to the dopaminergic neurons in vitro.
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Objective To evaluate the value of retroperitoneal laparoscopic adrenalectomy for benign adrenal tumors.Methods From March 2003 to May 2008,78 patients with adrenal tumors received retroperitoneal laparoscopic adrenalectomy in our hospital. During the operation,three trocars were introduced into the lumbar region to establish retroperitoneal space by blunt dissection with the camera. Afterwards,the tumor was removed by using a harmonic scalpel. Results The procedures were successfully completed in all the 78 cases without blood transfusion,the operation time ranged from 45 to 180 min (mean,90 min). Drainage tubes were removed 24 hours after the operation. And the patients were discharged from hospital in 3 to 5 days postoperation. One patient showed regional subcutaneous emphysema after the surgery and was cured spontaneously. The patients were followed up for 3 to 24 months with a mean of 10 months,during which 36 patients achieved normal blood pressure in 3 months,while in the other 7 patients,oral antihypertension drugs were still needed. No patients had recurrent tumor during the follow-up. Conclusions Retroperitoneal laparoscopic can be the first choice for adrenal tumors,as it is safe and effective with minimal invasion,quick recovery,and short postoperative hospital stay.