Humans ; Neoplasms ; genetics ; immunology ; therapy ; RNA Interference ; RNA, Small Interfering ; RNA-Induced Silencing Complex

Animals ; Antioxidants ; pharmacology ; Ascorbic Acid ; pharmacology ; Cumulative Trauma Disorders ; metabolism ; Lipid Peroxidation ; drug effects ; Male ; Muscle, Skeletal ; injuries ; pathology ; Oxidation-Reduction ; Oxidative Stress ; drug effects ; Rats

[Objective] To study the role of scaffold internal three dimensional structure of on vascularization of ?-TCP biomaterials in vivo.[Method]Twenty four adult rabbits were selected for operation.Two different three-dimensional structure ?-TCP biomaterials(wafer ?-TCP,the pore diameter was from 400 ?m to 500 ?m,the pore inter-connection diameter was 120 ?m;granulation ?-TCP,the particle diameter was from 100 ?m to 200 ?m)were implanted separately into fascia lumbodorsalis of every rabbit.The specimens were harvested in 1,2,4,8 weeks after surgery for histology,scanning electronic microscope(SEM)and SPECT studies in order to observe the vascularization of two different structure ?-TCP biomaterials in vivo.[Result]The biocompatibility of two different ?-TCP biomaterials was favourable.Only a few of immature blood capillaries were detected in some peripheral pores of two different biomaterials in one week after surgery.In four weeks of implantation,the result of histology indicated that the wafer artificial bone had vascularized completely.The number and lumens of blood vessel had increased.The peripheral blood vessel had been mature,showing vascularization crest-time.In eight weeks after sugery,there was no more increase of the number of blood vessel,while the lumens of blood vessel had increased.The mature capillaries were observed by chance.To compare with the wafer artificial bone,the vas cularization rate of the granulation artificial bone biomaterials was slower,and the number of blood vessel was less.On the other hand,the smaller lumens diameter and the infant structure existed in most of blood capillaries.Many blood vessels were not mature in four weeks,the vascular occlusion in some pores was detected.[Conclusion]The pore interconnection pathway in scaffolds is a key factor for vascularization.In other words,the higher density of pore interconnection pathway can induct more complete vascularization in scaffolds,and the diameter can restrict the lumens of blood vessel diameter.

Zinc-fingers and homeoboxes 2 (ZHX2) is a novel transcriptional repression factor participating in regulating the expression of alpha fetal protein (AFP). ZHX2 has been confirmed to be largely correlated with development and metastasis of hepatocellular carcinoma (HCC) and invasion of multiple myeloma.

Objective: To express glycosyl-phosphatidylinositol (GPI) modified Met- RANTES fusion protein on Chinese hamster ovary (CHO) cells and to develop a novel immunosuppressant GPI anchored form of Met-RANTES. Methods: The eukaryotic expression vector PEF/GPI-Met-RANTES were constructed and transfected into CHO cells by electroporation. The transfectants were selected with methotrexate (MTX). Expression of the recombinant protein was assessed by flow cytometric analysis, cell immunofluorescence staining and immunogold electron microscopy. Results: The chimeric molecules of GPI anchored form of Met-RANTES including the whole reading frame were constructed, and the sequence was identical to the designed sequence. GPI anchored form of Met-RANTES was stably expressed on CHO- DHFR- cells. Conclusion: A large amount of GPI modified Met-RANTES fusion protein was expressed on CHO cells. GPI anchored form of Met-RANTES may be used as novel immunosuppressant for suppressing reaction in graft rejection.

The “vertical tongue”method was used in speech training for 12 patients with functional speech disorder of consonant /L/.Af-ter treatment,the average vocal intilligibility of the 12 patients increased from 86.3% to 98.9%(P <0.05)./L/consonant average intelligi-bility increased from 42.9% to 85.2%(P <0.05).

This study aimed to investigate the immune adjuvant effect and mechanism induced by chitosan nanoparticles carrying pJME/GM-CSF. In this study, plasmid DNA (pJME/GM-CSF) was encapsulated in chitosan to prepare chitosan-pJME/GM-CSF nanoparticles using a complex coacervation process. Immunohistochemistry was used to detect the type of infiltrating cells at the site of intramuscular injection. The phenotype and functional changes of splenic DCs were measured by flow cytometry after different immunogens were injected intramuscularly. The killing activity of CTLs was assessed using the lactate dehydrogenase (LDH) release assay. The preparation of chitosan-pJME/GM-CSF nanoparticles matched the expected theoretical results. Our results also found that, after pJME/GM-CSF injection, the incoming cells were a mixture of macrophages, neutrophils, and immature DCs. Meanwhile, pJME/GM-CSF increased the expression of MHC class II molecules on splenic DCs, and enhanced their Ag capture and presentation functions. Cell-mediated immunity was induced by the vaccine. Furthermore, chitosan-pJME/GM-CSF nanoparticles outperformed the administration of standard pJME/GM-CSF in terms of DC recruitment, antigen processing and presentation, and vaccine enhancement. These findings reveal that chitosan could be used as delivery vector for DNA vaccine intramuscular immunizations, and enhance pJME/GM-CSF-induced cellular immune responses.
Adjuvants, Immunologic ; administration & dosage ; Animals ; Chitosan ; administration & dosage ; immunology ; Dendritic Cells ; immunology ; virology ; Encephalitis Virus, Japanese ; genetics ; immunology ; Encephalitis, Japanese ; immunology ; prevention & control ; virology ; Female ; Granulocyte-Macrophage Colony-Stimulating Factor ; administration & dosage ; genetics ; immunology ; Humans ; Immunity, Cellular ; Japanese Encephalitis Vaccines ; administration & dosage ; genetics ; immunology ; Mice ; Mice, Inbred BALB C ; Nanoparticles ; administration & dosage ; Spleen ; immunology ; T-Lymphocytes, Cytotoxic ; immunology ; virology ; Vaccines, DNA ; administration & dosage ; genetics ; immunology

Adult ; Aged ; Carcinoma, Papillary ; pathology ; surgery ; Female ; Humans ; Male ; Middle Aged ; Reoperation ; Retrospective Studies ; Thyroid Neoplasms ; pathology ; surgery ; Treatment Outcome ; Young Adult

Objective To investigate the clinical features and microsurgical outcomes of patients with parasellar cavernous hemangiomas.Methods The clinical data and prognosis of 12 patients with parasellar cavemous hemangiomas treated with microsurgery were retrospectively analyzed.Magnetic resonance imaging showed that cavernous hemangiomas appeared slight hypointensity on T1WI,hyperintense on T2WI,and significant contrast on enhancing.Results Total resection and sub-total resection was achieved in 9 and 3 patients.No death occurred postoperatively.After operation,all patients were released from intracranial hypertension.In 6 patients who had visual disorder,5 patients improved and 1 patient had no change.In 5 patients who had eyeball motor disorder,3 patients improved and 2 patients had no change.In 4 patients who had pituitary gland dyshormonism,2 patients improved and 2 patients had no change.At postoperative early stage,diabetes insipidus and serum electrolyte disorder occurred in 3 patients,2 patients developed oculomotor paralysis.Patients were followed up (30.51 + 2.57) months.Three patients recovered from diabetes insipidus and serum electrolyte disorder,and 1 patient recovered from oculomotor paralysis.No patient suffered tumor recurrence or regrowth.Conclusions The correct diagnosis of parasellar cavernous hemangiomas can be achieved according to the preoperative MRI.Microsurgery is the first-line therapy for parasellar cavernous hemangiomas.

OBJECTIVETo investigate the clinical effects of enblock distal radius T-plate fixation in treating trailing edge fracture of tibial plateau medial condyle and posterior cruciate ligament (PCL) avulsion fracture.

METHODSFrom September 2008 to November 2011, 5 patients with trailing edge fracture of tibial plateau medial condyle and PCL avulsion fracture caused by knee joint hyperextension,were treated with surgery. There were 3 males and 2 females with an average age of 35 years old (25 to 42). Left knee injury was in 3 cases and right knee had in 2 cases; 2 cases caused by sports injury and 3 cases caused by road accident. All patients were undergone emergency treatment. Fractures were anatomically reduced and fixed with T-plate through poples approach. Complications were observed after operation. Bone healing and clinical effects were respectively evaluated by X-rays and HSS system.

RESULTSFive patients were followed up for 1 to 4 years with a mean of 2 years. All incisions obtained healing of I stage. All knee joints recovered well and were stable with inflexion more than 120 degrees, no complications such as knee joint pain, injuries of nerve and blood vessel, infection, internal fixation failure were found. The mean score of HSS system was 94.40 +/- 6.09 and all patients got excellent result.

CONCLUSIONFor the treatment of trailing edge fracture of tibial plateau medial condyle and PCL avulsion fracture caused by knee joint hyperextension, enblock distal radius T-plate fixation had advantages of good stability,higher success rate, and knee joint function can recover well.

Adult ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; Humans ; Male ; Posterior Cruciate Ligament ; diagnostic imaging ; injuries ; surgery ; Tibial Fractures ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; Treatment Outcome