Objective To investigate the clinical-pathological feature and treatment of mvxoid adrenocortieal adenoma. Methods The clinical features of a Myxoid adrenocortical adenoma were re-viewed with its clinical manifestation,imaging,pathology and therapy.The patient was a 43-vear-old woman.The patient complained of recurrent headache,fatigue with hypertension and hypokalemia for 10 years.B-ultrasound examination revealed a 4.1 crux 3.4 cm hypoechoic solid mass in the left adre-nal gland. Relative literatures were reviewed. Results The patient was operated successfully by 1ap-aroscope.The section of tumor showed gray-like flour with yellow jelly-like substance.Hemorrhage was seen in some area. Under light microscope,the tumor cells were similar in size with boundary.There was no obvious heteromorphism and mitotic feature.There was full of mucoid substance.Im-munohitochemical staining showed that the tumor cells were positive for Vimentin,Melan-A and AB/ PAS staining,which confirmed the diagnosis of myxoid adrenocortical adenoraa. Blood pressure andbiochemical indicators returned to normal after surgery.There was no sign of recurrence after 6 month follow-up. Conclusions Myxoid adrenocortical adenoma is a rare adrenal tumor.Path010gy is the key to diagnosis.Surgical removal of tumor could be the preferred therapeutic choice.

Gastrointestinal stromal tumor(GIST) is the most common mesenchymal malignancy of the GI tract. The mainstay of treatment is surgery. For patients in whom complete resection is not possible, or in patients with metastatic or recurrent disease, they are unresponsive to standard chemotherapy and to radiotherapy. There has been no effective systemic treatment for unresectable GIST or metastatic disease. Gain-of-function mutations of the KIT proto-oncogene occur in up to 90% of GIST, allowing constitutive activation of tyrosine kinase (i.e. auto-phosphorylation of tyrosine residues independent of ligand-receptor binding), leading to aberrant cell division and tumour growth. Imatinib selectively inhibits the tyrosine kinase activity associated with KIT, which forms the rationale for evaluating its effects in GIST. Herein, we review recent developments in treatment for GIST and implication for optimal treatment in these patients.

Microarray technology, used in microorganisms detection with its advantages of rapid detection, high sensitivity, high-throughput and low cost, has been applied in environmental microbial community research widely in past few years. It focuses on investigation of structure, diversity, function, dynamics of microbial populations within complex environmental samples. Furthermore, it also reveals their responses and adaptation to environmental perturbations such as climate change, toxic contaminants. According probe design patterns, several types of microarrays, such as phylogenetic oligonucleotide arrays (POAs), functional gene arrays (FGAs), metagenomic array(MGA) and community genome arrays (CGAs) have been constructed for environmental studies. This review discusses applications of microarrays to environmental microbial populations research along with its potential for screening of specific microorganisms, gene or expression functional gene representing different environmental microbial populations.

OBJECTIVE To investigate the carrier state of lid margins after eyes area disinfection by 75% alcohol and 0.5% iodine and to compare the effect of different disinfectants,so we will know whether 0.5% iodine can be used for eyes area disinfection. METHODS Thirty eight patients(76 eyes) from our hospital in March-May 2005 were analyzed.The operated eyes area as control group were disinfected by 75% alcohol-the traditional disinfection method.The contralateral eyes area without operation as experimental group were disinfected by 0.5% iodine.Lid margins samples were obtained for culture after 3 minutes. RESULTS The qualification rate was 81.58% in the experimental group whereas 60.53% in the control group(P

Child ; Child, Preschool ; Endoscopy, Digestive System ; Female ; Follow-Up Studies ; Humans ; Infant ; Male ; Peptic Ulcer

Congresses as Topic ; Otorhinolaryngologic Surgical Procedures ; Rhinitis ; surgery ; Skull Base ; surgery

The research and development of monoclonal antibodies (mAbs) is a rapidly developing field. From the first generation of murine mAbs to the fourth generation of fully human mAbs, the efficacy and safety of mAbs in the treatment of various diseases have been continuously improved. In order to regulate the development and evaluation of mAbs, drug regulatory agencies and pharmacopeias of America and China have tried to issue feasible test procedures and acceptance criteria for quality evaluation of mAbs and biosimilars. Mass spectrometry (MS) technique with high sensitivity, resolution, selectivity, and specificity has become an important tool to evaluate the quality characteristics of monoclonal antibody-related products or specify mAb quality. The research of MS-based monoclonal antibody study involves structure characterization, impurity analysis, pharmacokinetics/pharmacodynamics (PK/PD), etc. This review focuses on the current quality control requirements of mAb related products and the development of MS technique for mAb quality characterization and specification. It is expected to provide information and references for evaluating the quality of monoclonal antibodies under research and development.

In recent years, the biopharmaceutical industry has grown rapidly, and the market size of monoclonal antibody drugs has increased significantly. Accurate structural characterization and quality control are the supporting technologies for the development of monoclonal antibody drugs. As a significant post-translational modification of antibody drugs, glycosylation has an important influence on its efficacy, stability, and immunogenicity. The existing literature usually uses liquid chromatography-mass spectrometry to perform major glycosylation modifications of monoclonal antibody drugs. Characterization, there are few studies on low-abundance glycosylation, but the characterization and control of low-abundance glycosylation cannot be ignored. In this study, we have established a qualitative and quantitative analysis technology for N-glycans based on RapiFluor-MS reagent-labeled monoclonal antibody drugs. This method has a short sample processing time and high sensitivity. It can not only characterize the main glycoforms of three monoclonal antibody drugs (adalimumab, bevacizumab, and trastuzumab) but also can quantify low-abundance N-glycans. The results of the study showed that the main glycoforms specified in the Pharmacopoeia could be detected in different batches of monoclonal antibody drugs, but the content of N-glycans in different batches of samples is not identical. After that, we analyzed the N-glycans connection sites and glycoforms at the intact glycopeptide level, further enriching the N-glycans structure information of the monoclonal antibody. The qualitative and quantitative analysis technology of N-glycans based on RapiFluor-MS reagent-labeled monoclonal antibody drugs can realize the in-depth characterization and control of glycosylation modification of monoclonal antibody drugs.

Objective To discuss the imaging characteristics of renal cyst of high density.Methods Nine cases (5 women and 4 men; mean age,48 years; age range,31-79 years) with high density renal mass(>30 HU) were reviewed.For all patients,the symptom was intermittent lumbar pain in 2 patients,gross hematuria with lumbar pain in 1 patient,gross hematuria without pain in 1 patient.The other 5 patients were detected during routine physical examination without symptom.Preoperative examination included CT,MRI and DSA.Results All the patients had solitary and unilateral high density renal cysts,which size ranged from 2 to 5 cm in diameter.The cysts displayed predominantly hypoechoic or irregular internal echoes on sonography.Excretory urography showed an unenhanced round mass without further distinguishing characteristics.Their cystic features were con-firmed on nonenhanced and contrast-enhanced CT scans.MRI showed a round mass with long T1 and long T2 signal.Angiography revealed lack of vessels around the mass.All patients were operated by partial nephreetomy.There was no recurrence in all patients during the follow-up for 1-5 years.Conclusion Renal cyst of high density has many special features of imageology.

As the development of robotic surgery in urology, the simulation training platform is playing an important role in the training of urologists on robotic surgery training.Currently, the available training simulators for urological robotic surgery are composed of virtual simulators such as VR and AR, and physical (mechanical) simulators such as dry-lab and wet-lab.The reality and validity of various simulation training platforms have been validated in different degree by many researches, which demonstrated the useful and helpful effect on the training and improving of robotic surgery skills.However, we need further study to develop more useful and precise training modules, to integrate advantages of different simulators, and to establish more reasonable learning curve.