Objective To evaluate the effect of the percutaneous nephrolithotomy (PCNL) with the single channel double sets of catheter sheath method in the management of complicated ureteric calculus. Methods The clinical data of forty-eight cases with complicated ureteric calculus were retrospectively investigated. Among them, 18 cases with ipsilateral kidney calculus, 1 case with repeat renal deformity, within the ureteral calculus in upper kidney. Results 48 patients smoothly under ulime from ultrasound guided puncture percutaneous renal channel is established successfully, The establishing the channel to setting the double sheath to the ureteropelvic junction was (18.0 ± 5.0) min, the operation time was (59.0 ± 6.0) min, the stone free rate was 96.6% and no significant complications, such as septic shock, intraoperative or postoperative bleeding and damage to surrounding organs, were detected. The patients were followed up for 3 to 6 months, the degree of hydronephrosis significantly reduced and no ureteral stricture were developed during the period. Conclusion The percutaneous nephrolithotomy (PCNL) with the single channel double sets of catheter sheath method is safe and effective for complicated ureteral calculus.

BACKGROUND:Various factors can affect the osteogenic differentiation of human adipose-derived stem cel s, and the osteoinductive factor of traditional Chinese medicine is very important for the research of human adipose-derived stem cel s. OBJECTIVE:To investagate the effects of ginsenoside Rb1 on the proliferation and osteogenic differentiation of human adipose-derived stem cel s in vitro. METHODS:The human adipose-derived stem cel s were isolated and cultured in vitro. After passaqed to the third generation, human adipose-derived stem cel s at 2×103/wel were incubated in a 96-wel plate, and treated with 200μL of 0.5, 1.0, 2.0, 4.0,6.0μmol/L ginsenoside Rb1 medium. The human adipose-derived stem cel s in the control group were treated with an equal volume of Dulbecco’s modified Eagle medium. Growth curves were examined by 2,3-bis-(2-methoxy-4-nitro-5-sulphenyl)-(2H)-tetrazolium-5-carboxanilide T colorimetric assay. Alkaline phosphatase activity and osteocalcin content were detected by alkaline phosphatase kit and radio-immunity method, respectively. Calcified nodules were observed using alizarin red O staining. RESULTS AND CONCLUSION:The proliferation viability of human adipose-derived stem cel s was significantly increased after cultured with 0.5μmol/L ginsenoside Rb1. With the increasing of the concentration of ginsenoside Rb1, the mitogenic activity of the cel s was decreased. The 6.0μmol/L ginsenoside Rb1 showed a depressant effect on proliferation. Ginsenoside Rb1 could promote alkaline phosphatase activity and osteocalcin expression in human adipose-derived stem cel s and showed a dose-dependent manner. Calcified nodule formation induced by 4.6 and 6.0μmol/L ginsenoside Rb1 were better when compared with 0.5, 1.0 and 2.0μmol/L ginsenoside Rb1. Ginsenoside Rb1 can promote the proliferation of human adipose-derived stem cel s cultured in vitro in a certain concentration, and in the high concentration, the ginsenoside Rb1 can promote the osteogenic differentiation of human adipose-derived stem cel s. So ginsenoside Rb1 can be used as an osteoinductive factor.

BACKGROUND: Increasing evidence identifies the immune system not as an isolated system with automodulations, but one that interacts with the central nervous system.OBJECTIVE: To investigate the distribution of c-fos expression in the lung and brain tissues of asthmatic rats and explore is significance.DESIGN: Randomized controlled study.SETTING: Department of Oncology, Southern Hospital, and Department of Neurosurgery, Zhujiang Hospital, Southern Medical University.MATERIALS: The experiment was conducted Department of Oncology,Southern Hospital, and Department of Neurosurgery, Zhujiang Hospital,Southern Medical University, between January and August 2004. Fourteen healthy male rats were randomized into experimental group (n=10) and control group (n=4).METHODS: On the first day of experiment, the rats in experimental group received intraperitoneal injection of 2 mL of the suspension containing 10 mg albumen, 200 mg aluminum hydroxide powder and inactivated pertussis vaccine (5×109), and subjected to inhalation of ultrasonically atomized 10 g/L albumen from on the 15th day, 2 times per hour for totally 3 days, to induce asthma in the rats. The rats in the control group received intraperitoneal injection of 2 mL normal saline on the 1st day and inhalation of ultrasonically normal saline on the 15th day, 30 mL a day for totally 3 days. The lung and brain tissues of all the anesthetized rats were fixed by perfusion, and immunohistochemical method with ovin-biotin-peroxidase complex and imaging analysis system were used to observe the distribution of Fos protein in the lung and brain.MAIN OUTCOME MEASURES: Distribution of c-Fos protein in lung and cerebrum.c-Fos in the lung and brain tissues was obviously higher in asthmatic group than in the control group (P ＜ 0.05), located mainly in the parietal-fontal cortex, limbic forebrain (cingulum cortex, pyriform cortex and central amygdaloid nucleus and so on), thalamus paraventricular nucleus, hypothalamus paraventricular nucleus, supraoptic nucleus, lateral region of the hypothalamus, hypothalamus periventricular nucleus, nucleus of solitary tract,area postrema and ventrolateral medulla. No obvious Fos expression was observed in the cerebellum. A large number of c-Fos-positive cells were observed in the wall of the airway and lungs in asthmatic rats, mainly distributing in the mucous membrane and submucous layer and around the smooth muscles; in the control rats, no positive cells or only occasional cells with weak c-Fos positivity were found in the wall of the airway and lungs.CONCLUSION: c-Fos expression increases obviously not only in the lungs of asthmatic rats, but also in medullar and its ascending projecting nuclei (hypothalamus, amygdala and so on), suggesting that the expression of protooncogene c-fos might be closely related with neuroimmunomodulation in asthma.

OBJECTIVETo observe the origins and insertions of Pitanguy ligament,in order to find the anatomically theoretical basis for the treatment of nasal deformity such as drooping nose, short columella, gingival show.

METHODS15 cadaveric heads fixed by 10% formalin were used. 12 specimens underwent nasal anatomic study. The skin was incised, along the nasal midline to expose the Pitanguy ligament. The origin of Pitanguy ligament and its relationship with surrounding tissue were studied. Then the Pitanguy ligament was taken out for HE staining. Longitudinal section along the ligament was observed. 3 specimens underwent harvesting of full-thickness nasal tissue from skin to periosteal membrane. Then the samples were used for HE staining to show histologic study of ligament at horizontal section.

RESULTSPitanguy ligament originates in the midline of lower third of the nasal superficial musculoaponeurotic system, extends down to the tip along the midline of the nasal dorsum and then turns backwards at the nasal tip, and runs between the medial crura of the lower lateral cartilages, inserts into the base of columella. Its muscle is connected with the orbicularis oris muscle and the depressor septi nasi muscle. HE staining showed the ligament consists of fibrous connective tissue, muscle tissue and other ingredients, but without cartilage.

CONCLUSIONSPitanguy ligament exists with complex histological composition, so its name is still controversial. Because it has multiple connection with the orbicularis oris muscle and the depressor septi nasi muscle, so cutting or shortened the Pitanguy ligament can treat deformity of nose and lip by adjustment of nasolabial angles and the nasal length.

Cadaver ; Cartilage ; anatomy & histology ; Facial Muscles ; anatomy & histology ; Humans ; Ligaments ; anatomy & histology ; Lip ; anatomy & histology ; Nasal Septum ; anatomy & histology ; Nose ; anatomy & histology ; Nose Deformities, Acquired ; pathology ; surgery ; Subcutaneous Tissue ; anatomy & histology

Chikungunya virus ; genetics ; isolation & purification ; China ; Genome, Viral ; RNA, Viral ; genetics ; Sequence Analysis, RNA

Objective To investigate the effects of different durations of methamphetamine abuse on spatial cognitive processing.Methods The mental rotation task was used to evaluate the spatial processing function of 35 methamphetamine abusers and 30 healthy subjects.The methamphetamine abusers are divided into 2 groups according to their abuse durations,group 1 contains 16 abusers with an average duration of 1 year and group 2 contains 19 abusers with an average duration of 3 years.Participants were asked to judge the right hand/food or the left hand/food of the experimental stimuli at difference angles.The reaction time (RT) and the accurate rate (AR) of the mental rotation task were recorded.Results Compared with the control group,RT of group 1 methamphetamine abusers was longer at the angle of 0°((1469±318)ms) and 180°((1718±412)ms) (P＜0.05),RT of group 2 was longer at the angle of 0°((1466±243) ms),60°((1497±294) ms) and 180°((1708±288) ms) (P ＜0.05).And the AR of methamphetamine abusers was higher at every angle (P＜0.05).Conclusion Long-term dependence on methamphetmine can damage the abuser's spatial processing function.

A novel sesquiterpenoid (1) and three known compounds identified as isoaltenuene (2), altenuene (3), and alternariol 4, 10-O-dimethyl ether (4), were isolated in our investigation of the cytotoxic constituents from solid cultures of the endophytic fungus Colletotrichum sp. The structures of these compounds were elucidated through spectroscopic data analysis. All compounds exhibited cytotoxic activity against lung cancer cell line A549, breast cancer cell line MDA-MB-231 and pancreatic cancer cell line PANC-1. Compound 4 could induce the PANC-1 cells inflation or death, but couldn't induce apoptosis at the IC50 of 60.2 microg x mL(-1).

Objective To explore the clinical methodology and effects of correction of secondary unilateral cleft lip nasaldeformity by anatomical restoration and cartilage of nasal septum.Methods With the Goodman's incision in the columella and nasal vestibule,we cut out the cartilage of nasal septum and built a new support structure of tip to reshape the nasal shape after the adequate anatomical restoration under the magnifier of 2.5 times.Results The operation corrected alanasi collapse skewed columella and nostrils symmetry,etc.21 cases were treated and followed up for a month and fifteen months,showing stablized effect with columella centerno alanasi collapse,symmetric nostril and no recurrence.Conclusions On the base of nasal anatomy,a good therapeutic effect has been archeived by the adequate anatomical restoration,cutting out the cartilage of nasal septum and builting a new support structure of tip to reshape the nasal shape.

Objective To investigate the effect of spectral CT monochromatic images for improving imaging quality in hepatic venography.Methods Thirty patients underwent spectral CT examination on a GE Discovery CT 750 HD scanner.During portal phase,1.25 mm slice thickness polychromatic images and optimal monochromatic images were obtained,and volume rendering and maximum intensity projection were created to show the hepatic veins respectively.The overall imaging quality was evaluated on a five-point scale by two radiologists.Inter-observer agreement in subjective image quality grading was assessed by Kappa statistics.Paired-sample t test were used to compare hepatic vein attenuation,hepatic parenchyma attenuation,CT value difference between the hepatic vein and the liver parenchyma,image noise,vein-to-liver contrast-to-noise ratio (CNR),the image quality score of hepatic venography between the two image data sets.Results The monochromatic images at 50 keV were found to demonstrate the best CNR for hepatic vein.The hepatic vein attenuation[(329 ± 47) HU],hepatic parenchyma attenuation [(178 ± 33) HU],CT value difference between the hepatic vein and the liver parenchyma [(151 ± 33) HU],image noise (17.33 ±4.18),CNR(9.13 ±2.65),the image quality score(4.2 ±0.6) of optimal monochromatic images were significantly higher than those of polychromatic images[(149 ± 18) HU],[(107 ± 14) HU],[(43 ±11) HU],12.55 ± 3.02,3.53 ± 1.03,3.1 ± 0.8 (t values were 24.79,13.95,18.85,9.07,13.25 and 12.04,respectively,P ＜ 0.01).In the comparison of image quality,Kappa value was 0.81 with optimal monochromatic images and 0.69 with polychromatic images.Conclusion Monochromatic images of spectral CT could improve CNR for displaying hepatic vein and improve the image quality compared to the conventional polychromatic images.

Purpose:The aim of this study was to investigate the diagnostic value of color Doppler Ultrasound in Budd-Chiari Syndrome (BCS) with hepatic venous(HV) outflow obstruction.Materials and Methods:The features of ultrasonography in 138 patients of Budd-Chian Syndrome were analyzed and compared with that of angiography.Results:83 patients had membranous obstruction and 45 segmental occlusion of HV.10 patients had HV stenosis.The ultrasound was able to reveal stenosis,atresia,emboli,or membranous obstruction in hepatic venous outflow tract.Collateral branches could be seen between the hepatic veins with short hepatic vein expanded.Both HV and IVC were involved in 35 cases,with thrombus in IVC in 11 and HV in 7.There was two false positive cases and 3 false negative in ultrasound diagnosis.Conclusion: The position and type of occlusion in HV could be accurately detected by color Doppler ultrasound,and so was the existence and degree of collateral circulation,which were of aid for the operation and follow-up.