Objective The TiO2 nanotube arrays,fabricated on the surface of orthopedics,was characterized,to provide carrier for orthopedics plant surface modification or coating,and seek a new way for the prevention and treatment of orthopedics plant infection.Methods By adjusting certain parameters,TiO2 nanotube arrays were fabricated on orthopedic titanium plate surface using the method of anodic oxidation,with glycerol system as electrolyte,orthopedics titanium plate as anode,and platinum electrode as cathode.TiO2 nanotube arrays were characterized.The element composition of TiO2 nanotube arrays was analyzed by X-ray photoelectron spectroscopy (XPS),and the morphological changes of TiO2 nanotube arrays was observed at high temperature (300 ℃) by X-ray diffractomer (XRD).Results With glycerol system as electrolyte,TiO2 nanotube array with diameter of about 100 to 200 nm and the length less than 3μm can be fabricated on orthopedic titanium plate surface using anodic oxidation of 24 h.The surface of orthopedic titanium plate was changed from silver white to deep blue in the macroscopic view.The TiO2 nanotube array on orthopedics titanium plate surface was mainly composed of Ti element (75.88％),O element (20.16％),and F element (3.96％) by XPS analysis.TiO2 nanotube arrays morphology was stable when it was heated to 300 ℃ by muffle furnace.Conclusions The method of anodic oxidation can be applied to manufacture TiO2 nanotubes array on titanium plate surface.The array with stable morphology,the inner hollow shape,the bottom sealing,and a large specific surface area,can withstand high temperature,which can provide carrier for orthopedics plant surface modification or coating.

Objective To investigate the effect of calcium channel antagonist verapamil upon coronary vessel disease of allograft heart transplant rat model.Methods 160 SD rats weighing 220 to 300 g were randomly allocated to control group (group 1, n=40) and experiment groups (group 2, n=40; group 3, n=40, group 4, n=40). The hearts of all donor rats were implanted into the recipient rats. From the day after operation, the rats in each group were fed routinely and injected intraperitoneally (ip) with Cyclosporin (5 mg?kg~ -1?d~ -1 for 10 days). In experiment groups, the rats were individually injected (ip) with verapamil by 0.1 mg/kg,0.5 mg/kg,1.0 mg/kg twice every day for 3 months, but the rats in control group were not subjected to injection. At 60th and 90th day after grafting, 10 of each group were selected randomly and transplanted hearts were cut. The specimens were stained with HE and histochemistry.Result The degree of intimal hyperplasia in the control group was more severe than in the experiment groups.Conclusion Calcium channel antagonist verapamil can effectively inhibit the intimal hyperplasia of coronary arteries in heart transplant model.

Cholangitis, Sclerosing ; complications ; Histiocytosis, Langerhans-Cell ; etiology ; Humans

Objective To study the effects of proprioception training on the motor function and ability in the activities of daily living (ADL) of hemiplegic stroke patients. Methods Forty hemiplegic stroke patients were divided into study group and a control group ( n =20 in each).The two groups received conventional rehabilitation treatment and pharmacotherapy,but the study group received additional proprioception training.The Technobody proprioceptive system assessment,the Fugl-Meyer lower limb assessment (FMA),the Berg balance scale (BBS) and the modified Barthel index (MBI) were used to evaluate their proprioceptive ability,lower limb motor function,balance and ADL ability,before and after 4 weeks of treatment. Results After 4 weeks,proprioception,lower limb motor function,balance and ADL ability had all improved significantly in the experimental group.Lower limb motor function,balance and ADL ability had also improved significantly in the control group,but they showed no significant change in their average proprioceptive ability.The improvement in the experimental group was superior to that of the control group in terms of proprioceptive ability,balance and ADL ability. Conclusions Proprioception training can improve the motor function (including the proprioception and balance) and ADL ability of hemiplegic stroke patients.

Background and purpose:More than 70 percent of ovarian cancer patients were diagnosed in the advanced stage. Currently the 5-year disease free survival (DFS) of stageⅢC-Ⅳovarian cancer patients wsa about 10 percent after first line chemotherapy. This study aimed to improve the 5-year DFS by three-step chemotherapy according to the mechanisms of ovarian cancer biological characteristics, cytodynamics and pharmacology. Methods:In arm A, the patients received three-step chemotherapy after primary debulking surgery, step one with paclitaxel plus carboplatin (TC regimen), every 3 weeks for 6 to 8 cycles;step two with etoposide plus cyclophosphamide, every 4 weeks for 6 cycles;step three wit carboplatin plus cyclophosphamide every eight weeks for six cycles. In control arm B, we retrospectively analysed 51 cases withⅢC-Ⅳstage ovarian cancer, who had completely response after standard chemotherapy with six to eight cycles of TC after primary surgery during 2007. We compared the 5-year DFS between the two arms. Results:The 5-year DFS of 15 cases in arm A was 80%(12/15), which was signiifcantly higher than that of arm B (5.9%, 3/51, P<0.01). Conclusion: The three-step chemotherapy after optimal debulking surgery in stageⅢC-Ⅳ can improve the 5-year DFS. This regimen is high efficacy, mild side-effect witn low cost, which deserves further exploration.

Anastomosis, Surgical ; Carotid Artery Diseases ; surgery ; Carotid Artery, External ; transplantation ; Carotid Artery, Internal ; surgery ; Humans ; Intracranial Aneurysm ; surgery ; Male ; Middle Aged ; Treatment Outcome ; Vascular Surgical Procedures ; methods

AIM: To observe the effects of scleral buckling surgery for retinal detachment under microscope and under indirect ophthalmoscope.
METHODS: Forty - six patients ( 46 eyes ) with rhegmatogenous retinal detachment were retrospectively analyzed. Twenty-six patients received surgeries under microscope was retrospectively analyzed and compared to that of 20 patients who received surgeries under indirect ophthalmoscope by the same operator.
RESULTS: No statistical difference was found in patients' operation method choice, including condensation reaction reattachment situation and the retina reset operation at a time ( P> 0. 05 ). The best corrected visual acuity of microscopic group after 1mo of operation was better than before operation, and the improving rate of vision after operation was higher than that of the traditional group (P<0. 05).
CONCLUSION:The curative effect of external approach microsurgery has the similar efficacy with the conventional external approach surgery, and gets better visual acuity.

Objective To evaluate the clinical indication,research value and surgical techniques of retroperitoneal laparoscopic ureter lithotomy for ureteral calculi.Methods Clinical data of 98 cases were retrospectively analyzed.All the patients underwent RLU,KWB,IVP,CTU or MRU examination and diagnosed with ureteral calculi,with 42 cases of upper ureteral calculi,35 cases of middle ureteral calculi,and 21 cases of low ureteral calculi.Laparoscopic ureter lithotomy was performed on all the patients.Results All the 98 cases underwent laparoscopic ureter lithotomy (RLU) successfully,with the sizes of stones ranging from 1.5 to 3.0cm,the mean operative time 60 minutes (from 45 to 100 minutes),and mean blood loss 30 mL (from 20 to 60ml).Complication had not been observed in 85 cases for 3-38 months follow-up.Conclusions The treatment of ureteral calculi with lapa-endo-scopic ureter lithotomy shows its unique superiority on the basis of skilled operative technology.Lapa-endo-scopic ureter lithotomy can be a preferred method to be performed or be a compensation method in some cases.

Objective To improve the knowledge of paediatric pulmonary arterial hypertension(PAH) and to elevate the level of early diagnosis and treatment.Methods The clinical data of 45 PAH patients admitted in Shanghai Children's Hospital from Jan.2006 to Dec.2012 were reviewed,including clinical manifestation,laboratory examination,diagnosis,treatment and prognosis.Results Of the 45 PAH patients,21 cases (46.7％) were male and 24 cases (53.3 ％) were female,with an average age of 2.5 years old.Among them idiopathic PAH was in 24 cases (53.3 ％) and secondary PAH was in 21 cases [including interstitial lung disease in 4 cases,upper airway obstruction in 3 cases,systemic lupus erythematosus in 3 cases,hepatic disease in 3 cases,including hepatic hemangioma 1 case,liver cirrhosis portal hypertension 1 case and autoimmune hepatic sarcoidosis 1 case,tachycardia induced cardiomyopathy in 2 cases,extensive pulmonary small artery stenosis in 2 cases,human immunodeficiency virus (HIV) infection in 1 case,hypothyroidism in 1 case,and familial PAH in 2 cases].Main clinical manifestations were anhelation after exercise (71.1％),fatigue (68.9％),cough (48.9％),chest tightness (26.7％),chest pain (33.3％),syncope (8.9％),et al.The most common physical signs were splitting of the second sound in pulmonary valve area (93.3％),followed by tricuspid murmur (77.8％),cyanosis (53.3％),hepatomegaly (42.2％),hydropericardium (28.9％),and oedema (11.1％),et al.Twenty-seven cases did cardiac catheterization,compared with idiopathic PAH and secondary PAH,pulmonary artery systolic pressure,mean pulmonary artery pressure,pulmonary capillary wedge pressure,pulmonary arteriolar resistance index had significant difference(P ＜ 0.05).Thirty-one cases' condition improved after treatment,11 cases without any improvement and 3 cases died during follow-up visit.Conclusions PAH is a rare disease with no specific symptom and can be easily misdiagnosed in children.Ultrasonic cardiogram and cardiac catheterization are helpful in diagnosis.Actively looking for the cause can improve the prognosis.

Objectives To explore the effect of mibefradil, a kind of novel calcium channel antagonists, on proliferation of human pulmonary artery smooth muscle cells (HPASMCs) induced by platelet-derived growth factor (PDGF). MethodsHPASMCs were culturedin vitro, and randomly divided into control group, PDGF group, Mib group, and PDGF+Mib group. The PDGF group was stimulated by 25 ng/ml of PDGF. Mib group was intervented by 10 μmol/L of Mib. PDGF+Mib group was treated by PDGF and Mib. The reproduction rate in 48 hours and 72 hours were detected by MMT. Cell cycle was detected by lfow cytometry. The expression of proliferating cell nuclear antigen (PCNA) was observed by immunolfuorescence staining (IFS).ResultsThere were statistical differences among four groups in both 48 hours and 72 hours (P all??0.05). There were statistically differences of G0/G1 phase and S phase among four groups (P?