Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antineoplastic Agents ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bleomycin ; therapeutic use ; Cyclophosphamide ; therapeutic use ; Dacarbazine ; therapeutic use ; Doxorubicin ; therapeutic use ; Hodgkin Disease ; drug therapy ; Humans ; Lymphoma ; classification ; drug therapy ; pathology ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; Lymphoma, Large-Cell, Anaplastic ; drug therapy ; metabolism ; Lymphoma, Non-Hodgkin ; drug therapy ; Prednisone ; therapeutic use ; Receptor Protein-Tyrosine Kinases ; metabolism ; Rituximab ; Vinblastine ; therapeutic use ; Vincristine ; therapeutic use

Humans ; Occupational Exposure ; Paraquat ; poisoning

Animals ; Embryo Culture Techniques ; Embryo, Mammalian ; Female ; Ganglia, Spinal ; cytology ; drug effects ; Glial Cell Line-Derived Neurotrophic Factor ; pharmacology ; Male ; Motor Neurons ; drug effects ; Neurons, Afferent ; drug effects ; Rats ; Rats, Sprague-Dawley

Administration, Rectal ; Adolescent ; Adult ; Drugs, Chinese Herbal ; administration & dosage ; Endometriosis ; drug therapy ; Female ; Humans ; Middle Aged ; Phytotherapy

Objective To understand the status and administration of Young Scholar Scientific Research Program at China CDC,to analyze the program functioning and raised problems,as well as further discuss administrative strategies internally at institutional level.Methods To review and analyze the archived documents and data materials of Young Scholar Scientific Research Program at China CDC.Results Department of Science and Technology is responsible for the daily management of Young Scholar Scientific Program.The research fields of these projects mainly focused on public health and infectious disease.75 two-year period projects are funded and 55 have been completed so far.Accumulated subsidy amount is up to 6.68 million RMB.146 papers have been published,among which 57 English papers have been published (47 were in SCI journals).And 5 patents were granted.Conclusions The establishment of the Young Scholar Scientific Program has empowered the young fellows for conducting scientific research independently.On the other hand,this program also strengthened technical support for disease prevention and control.It is proposed to go on strengthen the scientific management and further establishing academic communication plat form for young fellows.

?Advances in genome-wide analysis have revealed that up to 90%of the human genome is transcribed.However, only approximately 1% of RNA transcripts encode proteins, and the remaining transcripts are noncoding RNAs.Noncoding RNAs can be roughly divided into small noncoding RNAs (<200nt ) and long noncoding RNAs ( LncRNAs, >200nt ). Small noncoding RNAs include microRNAs, transfer RNAs and small nucleolar RNAs, whereas the long noncoding RNAs comprise ribosomal RNA, natural antisense transcripts, etc. Although the biosynthesis and biological activities of microRNAs are well studied through bioinformatics and active biological molecules analysis, the understanding of LncRNAs on these aspects is still limited.LncRNAs play multiple roles in regulating gene transcription and translation, and epigenetics.Aberrant LncRNAs expression can occur in various pathological processes and significantly related to the pathogenesis or poor prognosis of ophthalmological diseases. In this review, we will focus on the characteristics and regulatory functions of LncRNAs that are commonly associated with ophthalmological diseases.

Objective To explore the effects of chronic fluorosis on neurons in the cerebral cortex of rats,and to provide some morphological evidence of damage in the central nervous system induced by chronic fluorosis.Methods Male Wistar rats 40 days after birth were fed with high fluoride contented water(100 mg/L)for inducing chronic fluorosis.Immunocytochemistry and in situ hybridization were used to detect c-fos and Caspase 8 at cerebral cortical neurons respectively.Results c-fos positive cells rate and gray scale in the cerebral cortex of chronic fluorosis were 35.8%and 0.2756±0.0241,respectively,and that of control group were 32.1%and 0.2774±0.0331with statistical difference(χ2=0.305,t=0.826,P＞0.05).Caspase 8 positive cells rates of fluorosis group and control group were 18.7%and 14.1%,respectively,the difference being statistically significant(χ2=0.419,P＞0.05).The gray scale of fluorosis group and control group were 0.3874±0.0329 and 0.3884±0.0323,respectively,the difference being statistically significant(t=0.641,P＞0.05).Conclusion Chronic fluorosis had no significant influence on apoptosis of cerebral cortical neurons.

OBJECTIVETo investigate the effect of Fructus psoraleae on the differentiation of cultured osteoblast MC3T3-E1 cell isolated from neonatal mouse's calvarium.

METHODF. psoraleae preparation was extracted with distilled water. A mouse osteoblast cell line MC3T3-E1 was used as a cell model for screening potency. Cultured MC3T3-E1 osteoblasts were divided into 4 groups: control and F. psoraleae extract 0.02, 0.2, 2 (crude drug) g x L(-1), change the medium and extract every 3 days. The content of ALP and type I collagen were measured. The expression of ALP, type I collagen and osteocalcin mRNA in MC3T3-E1 cell was detected by real-time PCR.

RESULTThe activity of ALP was stimulated by extract of F. psoralea at doses 0.2 g x L(-1), and the content of type I collagen was encouraged at doses 0.2 g x L(-1) . The extract of F. psoralea enhanced the expression of ALP, type I collagen and osteocalcin mRNA in MC3T3-E1 cell. The expression of ALP mRNA was enhanced by extract of F. psoralea at doses 0.2 g x L(-1) for 7-14 d, and the expression of type I collagen and osteocalcin mRNA was enhanced at doses 0.2 g x L(-1) for 14-21 days.

CONCLUSIONF. psoralea can stimulate the differentiation of osteoblasts in vitro. It will offer a reference for the active mechanism research.

Animals ; Cell Differentiation ; drug effects ; Cells, Cultured ; Cornus ; chemistry ; Drugs, Chinese Herbal ; pharmacology ; Medicine, Chinese Traditional ; Mice ; Osteoblasts ; drug effects ; pathology

Purpose The main purposes of our research were to: 1. set up the method of the RGDHirudin microsphere preparation; 2. set up the method to test the activity and the content of the medicine contained in the microsphere; 3. analyse the key factors on the quality of the microsphere preparation. Methods Co-poly lactic acid glycolic acid (PLGA) microsphere was prepared by a modified solvent evaporation method by a double emulsion with the use of polyvinylalcohol (PVA) as emulsification; PLGA was used as biodegradable material and dichloromethane as organic solvent. The influence of formulation factors including the W1/O on microsphere diameter distribution and yield coefficient;PVA concentration on microsphere appearance, encapsulation and yield coefficient; ultrasound on spherulization average and medicine activity; stirring speed on spherulization average and microsphere appearance; PLGA on microsphere appearance and microsphere dispersity; concentration of NaCl on encapsulation efficiency, yield coefficient and medicine content etc were studied. Results The size of all the fabricated microsphere was measured according to the several factors that affect the particle size. The average diameter was 81.38 μm, which is good for further research. The medicine content and the percent yield of all the microsphere was high, which ranged from 83. 92% - 96. 3% and 79.93% - 95.05% respectively. The encapsulation efficiency was about 23.95% - 65. 13%. We found that the concentration of the NaCl and PVA were the very important factors to the encapsulation efficiency. Physiological activity of RGD-Hirudin containing in the microsphere and the release rate of the microsphere were controlled. Furthermore, the release rate was stable. Conclusions The physiologic activity of RGD-Hirudin released from the microspheres was stable. PLGA-RGD-Hirudin microspheres were controlled released by the in vitro studies. Therefore, the in vivo experiment was well grounded.

Objective To evaluate the value of contrast-enhanced ultrasound in superficial lymphadenopathy. Methods Ninty-four superficial enlarged lymph nodes were studied by 2-dimensional, color Doppler ultrasound, and contrast-enhanced ultrasound. Then the contrast-enhanced images were analyzed by Philips Q-LAB software. All the results were compared with pathological diagnosis. Results For the 94 superficial lymph nodes examined,44 were benign,33 were metastases and 17 were lymphomas. The sensitivity, specificity,and accuracy of contrast-enhanced images were 84% ,74% and 790//oo respectively. Contrast-enhanced ultrasound examination showed intense homogeneous enhancement in 39 of 44 benign lymph nodes; high or low homogeneous enhancement in 25 of 33 and 7 of 33 in metastases respectively;intense homogeneous, and scarce enhancement in 6 of 17 and 9 of 17 in lymphomas respectively. Time-intensity curves showed that compared with metastasis lymph nodes and lymphomas, benign lymph nodes had higher peak intensity and larger area under the curve (P<0.01). Conclusions The diagnosis accuracy was significant increased when contrast-enhanced ultrasound was test against conventional ultrasound. The character of contrast agent enhancement and Q-LAB time-intensity curves provide valuable diagnosis information for differential diagnosis of benign,metastasis lymph nodes and lymphomas.