Public Health ; methods ; Systems Analysis

Objective To establish radioiodine therapy in nonthyroid tumor and to investigate 131Ⅰ treatment effect on xenografted ovarian cancer. Methods Based on previous test, xenografted ovarian cancer nude model were established in nude mice. The effects of radioactive isotope 99m TcO-4 imaging and radioiodine 131Ⅰ treatment on xenografted ovarian cancer in vivo were investigated. Results After transferring human sodium/iodide symporter (hNIS) gene, the xenografted ovarian cancer in nude mice was imaged by isotope 99m TcO-4 Moreover,131Ⅰ exerted inhibitory effect on the proliferative activity. Conclusion After the transfection of hNIS gene, 131Ⅰ has inhibitory effect on proliferative activity of xenografted ovarian cancer.

Objective To study the effects of high salt intake on blood pressure and renin-angiotensin in male rats with different plasm androgen levels.Methods Thirty male Wistar rats were randomized to sham(n=10)or operated(n=10),or castration(n=10),or testosterone replacement after castarion(26.7 mg/kg,n=10)and fed with 8% NaCl for 8 weeks.Tall arterial pressure were recorded before,4 and 8 weeks after experiment.Serum PRA,plasma angiotensin Ⅱ(Ang Ⅱ)and testosterone(T)were determined by radioimmunoassey respectively. Results After 8 weeks high salt dietary,blood pressure was significantly increased in sham and testosterone replace ment rats(Sham operation group:137.3?4.0 vs the basal line:117.5?5.9 mmHg,testosterone replacement group: 134.4?5.2 vs the basal line:116.6?7.7 mmHg,P0.05).Concomitantly,sham operation or testosterone re placement rats had higher PRA and plasm Ang Ⅱ content compared with castrated rats(PRA:Sham operation 5.90 ?0.77 vs testosterone replacement group:5.69?0.47 vs castrated rats:4.90?0.55 mol/(L?h),P

Objective To investigate the influential factors of systemic lupus erythematosus(SLE) activity during pregnancy and their relationship with pregnancy outcome.Methods A retrospective analysis of the clinical history of 66 pregnant women with SLE from 1991 to 2005 was carried out.Results(1) Those patients with unstable status progestation,patients being newly diagnosed with SLE during pregnancy or patients irregularly using prednisone became active during pregnancy.The disease was active in 32 cases(the active group)and inactive in 34 cases(the inactive group).(2)Obstetric complications in the active group included:9 cases of preeclampsia,13 cases of fetal growth restriction(FGR),7 cases of therapeutic abortion and 15 cases of premature labor;and the corresponding numbers in the inactive group were 1,5,1 and 4, respectively.All the numbers were significantly different between the two groups(P

ObjectiveToevaluateourrevisedsyndromicalgorithmforthemanagementinpatientswithvaginaldischargeanddetermineitssensitivity,specificity,andpositivepredictivevalue(PPV).MethodsPatientswithvaginaldischargesyndromewereselectedintheirfirstvisitstotwoSTDclinicsinShanghaiandSichuan.Theyweremanagedaccordingtorevisedsyndromicflowcharts.Theetiologyofthesyndromewasdetectedbylaboratorytesting.ThedatawereanalyzedusingEPIINFOV5.0software.ResultsTherewere27(8.1%)patientswithgonorrhea,57(17.1%)withchlamydialinfection,and18(5.4%)withbothinfectionsin334patientswithvaginaldischarge.Thesensitivitywas70.6%,specificity54.7%,PPV40.7%,andnegativepredictivevalue(NPV)80.9%forthediagnosisofgonorrheaand/orchlamydialinfectionbysyndromicapproach.ConclusionThespecificityandPPVforsyndromicmanagementofvaginaldischargearenotsatisfied.Furthervalidationandrevisionareneededforsyndromicapproachesofvaginaldischarge.

OBJECTIVETo investigate the technique and clinical effect of interlocked intramedullary nailing through a single incision on the treatment of floating knee injuries.

METHODSThirty-eight patients of floating knee injuries included 25 male and 13 female with an average age of 35.6 years ranging from 17 to 52 years. All patients were treated by interlocked intramedullary nailing through a single incision. The clinical effect was evaluated postoperatively.

RESULTSThirty-eight cases were followed-up for 8.6 to 15.4 months with an average of 12.0 months. Thirty-seven cases gained bone healing and the time of fracture healing was from 2.7 to 6.9 months, with an average of 4.8 months. The nonunion of the distal femoral fracture was observed in 1 case with retrograde nailing, the revision operation was performed by plate and bone graft, and bony union was obtained. The results were excellent in 22 cases, good in 13 cases, fair in 2 cases, and poor in 1 case.

CONCLUSIONThe treatment of floating knee injuries with interlocked intramedullary nailing through a single incision brings less damage, low infection rate, good fracture healing. It is an effective method for treating floating knee injuries.

Adolescent ; Adult ; Female ; Femoral Fractures ; surgery ; Fracture Fixation, Intramedullary ; methods ; Humans ; Knee Injuries ; surgery ; Male ; Middle Aged

OBJECTIVETo observe the gene silencing and disruption of WNT pathway mediated by the specific shRNA targeted against beta-catenin and its effect on cell proliferation of the human colon cancer cell line Colo205.

METHODSThe shRNA plasmid vectors against beta-catenin were constructed and transfected into Colo205 cells with Lipofectamine 2000. The expression of beta-catenin was detected by RT-PCR and Western blot. Immunofluorescence staining was also performed to detect the beta-catenin protein expression in cells. The cell proliferation inhibition was determined by MTT assay and soft agar colony formation assay.

RESULTSThe shRNA vectors targeted against beta-catenin were successfully constructed and efficiently suppressed the expression of beta-catenin mRNA and protein(P<0.05). The expression inhibition rates were 47.89% and 45.26% at the mRNA and protein level respectively. Immunofluorescence microscopy also demonstrated the inhibition of beta-catenin protein induced by these specific shRNAs. The MTT assay indicated that the specific shRNA resulted in significant inhibition of cell growth on the culture plates in time-dependent manner. At 72 h post-transfection, the cell viability of CAT group was 48.5%, which was significantly different as compared with that of blank control group's 91.3%(P<0.05). In the soft agar, there were 9, 46, 43 cell colonies in the CAT, blank, and negative control groups respectively, which were significantly different(P<0.05).

CONCLUSIONSThe specific shRNAs targeted against beta-catenin has a gene silencing effect and blocks the WNT signaling pathway, which can inhibit the growth of Colo205 cells.

Cell Line, Tumor ; Cell Proliferation ; Colonic Neoplasms ; genetics ; metabolism ; Humans ; In Vitro Techniques ; RNA Interference ; Signal Transduction ; Transfection ; Wnt Proteins ; metabolism ; beta Catenin ; genetics

OBJECTIVETo compare the clinical efficacy of 3 approaches of vertebroplasty in the treatment of severe osteoporotic vertebral compression fractures.

METHODSTwenty-five patients with severe osteoporotic vertebral compression fractures were observed, whose average age was 72 years with average disease history of 12 days and average compression of the affected vertebral bodies of 73%. The patients were divided into 3 groups for 3 different fracture types according to Rao's classification of osteoporotic vertebral structure and deformity, namely wedge type (group A, n= 12), biconcave type (group B, n= 7) and crush type (group C, n=6). Unipedicular approach was adopted in group A, far lateral bipedicular approach in group B, and posterior wall vertebroplasty and pedicle screw fixation in group C. The average follow-up time was 1 year. Visual analog scale (VAS), analgesic use and the mobility were measured in the patients preoperatively and 3 days (7 days in group C) and 6 months after the operation, respectively, and the success rates and complications were observed.

RESULTSAll the surgical procedures were successful. The average operation time was 35 min in group A, 50 min in group B, and 2 h in group C. The average volume of cement injected into each vertebral body was 2.0 ml. The average blood loss was 30 ml in groups A and B, and 600 ml in group C. The procedure increased mobility and decreased analgesic use. VAS was decreased by a mean of 4.8 in Group A, 6.2 in group B 3 days after the operation and 5.4 in group C 7 days postoperatively, and remained stable till 6 months after the operation (P<0.01). Cement extravasation occurred in 9 cases, cement in the vertebral canal in 2 cases with transient neurological symptoms, and cement extravasation in the intervertebral space and the anterior space of the vertebral bodies took place in 5 and 2 cases, respectively. No neurological complications were observed.

CONCLUSIONDifferent types of severe osteoporotic vertebral compression fractures require management with different approaches of vertebroplasty for adequate filling of the remaining vertebral body, which provides significant pain relief with wider indications.

Aged ; Female ; Fractures, Compression ; etiology ; surgery ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Middle Aged ; Orthopedic Procedures ; methods ; Osteoporosis ; complications ; Spinal Fractures ; etiology ; surgery ; Thoracic Vertebrae ; injuries ; Treatment Outcome ; Vertebroplasty ; methods

OBJECTIVETo study the result of less invasive fixation in treating comminuted fracture of distal tibia.

METHODSFrom 2002 to 2008, 48 patients with comminuted fracture of distal tibia were treated with surgery. The closed reduction and less invasive fixation were done to stable broken fibula, and the reduction by Kirschner wire to pick was used for relatively larger debris of tibia. The Kirschner wire or screw were used to fix fracture after the restore of the ankle cavity position and the alignment of the tibia. Partial weight loading and functional exercise of ankle joint were done at 6th week after operation.

RESULTSForty-eight patients were followed up for 1-24 months with an average of 12 months. All the fractures were united. According to Johner-Wruhs standard to value the result by factors of pain, deformity, motion range of joint,with or without injury of nerve and blood vessel. Thirty-eight cases obtained excellent result, 8 good, fair 2. The rate of excellent and good were 95.8%.

CONCLUSIONLess invasive fixation has ascendancy such as easy operation, less injury of soft tissue, reliable fixation, which can maximally protect periosteum. It is a choice for treating comminuted fracture of distal tibia.

Adult ; Aged ; Bone Wires ; Female ; Fracture Fixation, Internal ; Fractures, Comminuted ; surgery ; Humans ; Male ; Middle Aged ; Tibia ; injuries ; surgery ; Tibial Fractures ; surgery ; Young Adult

OBJECTIVEThe study aimed to evaluate and compare the efficacy and safety of dihydroartemisinin-piperaquine phosphate (Artekin) and artemisinin-piperaquine (Artequick) in the treatment of uncomplicated falciparum malaria.

METHODSA total of 103 uncomplicated falciparum malaria patients were enrolled and randomly assigned to two groups: 52 cases in the Artequick group, and 51 cases in the Artekin group. The patients in the Artequick group were administered with Artequick, twice in 24 h, whereas the patients in the Artekin group were given Artekin 4 times in 2 days. The mean parasite clearance time, mean fever clearance time, 28-day cure rate and parasite recrudescence rates of the two groups were then compared.

RESULTSThe mean parasite clearance time and the mean fever clearance time were 43.2+/-13.9 h and 24.7+/-9.9 h, in the Artequick group, and 36.5+/-17.1 h and 22.7+/-11.2 h, in the Artekin group. In both groups the 28-day cure rate was 100%, and the parasite recrudescence rate was 0.

CONCLUSIONBoth medicines had high cure rates, low recrudescence rates, and no serious adverse reactions. The administration of Artequick, however, was more convenient and lower incidence of gastrointestinal side effects than that of Artekin, so as to increase the efficacy in the malaria population.

Adolescent ; Adult ; Anti-Infective Agents ; administration & dosage ; adverse effects ; Antimalarials ; administration & dosage ; Artemisinins ; administration & dosage ; adverse effects ; Drug Combinations ; Female ; Humans ; Integrative Medicine ; Malaria, Falciparum ; drug therapy ; Male ; Quinolines ; administration & dosage ; adverse effects ; Treatment Outcome ; Young Adult