1.How to optimize the clinical therapeutic protocol for triple-positive breast cancer.
Chinese Journal of Oncology 2010;32(4):241-243
Antibodies, Monoclonal
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therapeutic use
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Antibodies, Monoclonal, Humanized
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Antineoplastic Agents, Hormonal
;
therapeutic use
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Breast Neoplasms
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metabolism
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pathology
;
therapy
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Female
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Humans
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Lymphatic Metastasis
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Receptor, ErbB-2
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metabolism
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Receptors, Estrogen
;
metabolism
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Receptors, Progesterone
;
metabolism
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Signal Transduction
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Tamoxifen
;
therapeutic use
;
Trastuzumab
2.Association of high-sensitivity C-reactive protein with risk factors of cerebral infarction in patients with type 2 diabetic mellitus
Chinese Journal of Primary Medicine and Pharmacy 2006;0(09):-
Objective To examine the serum high-sensitivity C-reactive protein(hs-CRP)levels in subjects with type 2 diabetic mellitus(DM)or DM accompanied by cerebral infarction(DM+CI),and the relationship be- tween the serum high-sensitivity C-reactive protein(hs-CRP)levels,and to investigate risk factors of cerebral infarc- tion in patients with type 2 diabetic mellitus.Methods The serum high-sensitivity C-reactive protein(hs-CRP)lev- els were measured in 50 DM patients,50 DM+CI patients and 30 healthy controls by ultra-sensitive immunoassay. hs-CRP values and its relationship with cerebral infarction in patients with type 2 diabetic mellitus and other factors, such as age,BMI,TG,etc,were analyzed.Results Univariate analysis revealed significant differences in hs-CRP concentrations between controls[(0.73?0.46)mg/L]and subjects with DM[(2.26?1.38)mg/L],or subjects with DM+CI[(3.82?2.67)mg/L](P
3.Mechanisms of proteasome inhibitor bortezomib on the therapy of multiple myeloma
Journal of Leukemia & Lymphoma 2011;20(11):698-700
The ubiquitin-proteasome pathway is one of important pathways during selective protein degradation,which participates in many intracellular physiological and biochemical processes.Bortezomib,a kind of proteasome inhibitor,can inhibit cell growth and proliferation,induce cell apoptosis and overcome drug resistance in chemotherapy.The mechanisms of bortezomib on the therapy of multiple myeloma are reviewed in this paper.
4.Expression of YAP in human papillary thyroid cancer and its influence on cell growth
Chongqing Medicine 2016;45(12):1653-1655
Objective To investigate the expression of Yes‐associated protein(YAP) in human papillary thyroid cancer and its influence on cell growth .Methods The samples in 57 cases of papillary thyroid cancer treated by operation resection in the gen‐eral surgery department of this hospital and the matched tumor‐adjacent tissues were collected .All the cases were definitely diag‐nosed by the pathology examination .The expression of YAP protein in the cancer tissue and corresponding tumor‐adjacent tissue were determined by the immunohistochemistry(IHC)staining .The relationship between the YAP protein and the clinicopathological data was statistically analyzed .siRNA was used to silence the expression of YAP in B‐CPAP cells ,MTT and flow cytometry were used to measure the proliferation and apoptosis changes .Results The expression level of YAP was markedly higher in papillary thyroid cancer tissues than in tumor adjacent tissues (P<0 .05);moreover the expression of YAP protein was positively correlated with the tumor size and TNM stage (P<0 .05) .Silencing YAP gene could significantly inhibit the cell proliferation ability and pro‐mote cell apoptosis(P<0 .05) .Conclusion YAP is highly expressed in papillary thyroid cancer tissues and is related with its ad‐verse clinicopathological characteristics ,down‐regulating YAP gene can significantly inhibit the cell growth .
6.Progress of molecular pathology in pediatric brain tumor.
Ya-jie WANG ; Yue-shan PIAO ; De-hong LU
Chinese Journal of Pathology 2011;40(3):206-208
Astrocytoma
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genetics
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metabolism
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pathology
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Brain Neoplasms
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classification
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genetics
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metabolism
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pathology
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Child
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Child, Preschool
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Chromosomal Proteins, Non-Histone
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genetics
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metabolism
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Chromosome Deletion
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Cyclin-Dependent Kinase Inhibitor p16
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genetics
;
metabolism
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DNA-Binding Proteins
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genetics
;
metabolism
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Ependymoma
;
genetics
;
metabolism
;
pathology
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Hedgehog Proteins
;
genetics
;
metabolism
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Humans
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Medulloblastoma
;
classification
;
genetics
;
metabolism
;
pathology
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Proto-Oncogene Proteins B-raf
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genetics
;
metabolism
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Rhabdoid Tumor
;
genetics
;
metabolism
;
pathology
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SMARCB1 Protein
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Signal Transduction
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Transcription Factors
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genetics
;
metabolism
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Wnt Proteins
;
metabolism
;
beta Catenin
;
genetics
;
metabolism
9.Modification,Expression and Purification of Human Endotoxin Binding Peptide Gene
Ya-Li SUN ; You-Sheng LIU ; Hai-Jie YANG ;
China Biotechnology 2006;0(03):-
Objective: To modify EBP(endotoxin binding peptide), clone and express the mutate of EBP gene and gain purified mEBP.Method: mEBPgene was cloned by PCR site-directed mutagenesis. PinpointXa-3/mEBP expression vector was designed to express human mEBP as a fusion protein in BL21 (DE3) pLysS. Digested engineering bacteria by lysozyme and collected inclusion bodies.Fusion protein was purified by Pinpoint TM Xa purification system and cleaved by factorXa,mEBP was purified by RP-HPLC. Results: Mutations at residues 5 and 18(Gln→Lys) was obtained by PCR site-directed mutagenesis, expressed and purified mEBP successfully.Conclusions: Obtaining of purified mEBP lay a foundation for its biological activity research.
10.Pharmacokinetics of topically applied econazole nitrate nanoparticles in rabbit eye
Bo, WANG ; Li-ya, WANG ; Peng, CHEN ; Jun-jie, ZHANG
Chinese Journal of Experimental Ophthalmology 2012;30(8):677-680
Background Econazole nitrate is not effective as an antifungal eyedrop because of its poor intraocular permeability,therefore changing the formulation of econazole nitrate to improve its intraocular permeability become a critical point in the treatment of intraocular fungal infection. Objective The present study was to observe the penetration of 0.5% econazole nitrate nanoparticles in the corneas and aqueous humors following its topicaladministration. Methods Econazole nitrate nanoparticles were prepared by quasi-emulsion solvent diffusion.Characteristics and size of nanoparticles were examined with transmission electron microscope and laser scatteringmethod,respectively.Econazole nitrate nanoparticles drops (0.5% )was topically administered in 27 New Zealandwhite rabbits bilaterally,and aqueous humor and corneas were obtained after the application of the eye drops for 5,15,30,45,60,90,120,180,240 minutes respectively to detect the concentration of econazole nitrate with highperformance liquid chromatography (HPLC). The pharmacokinetic parameters were calculated with 3 p97pharmacokinetic computer software.The use of the animals followed the Regulation for the Administration of AffairsConcerning Experimental Animals by State Science and Technology Commission. Results The diameter of thenanoparticles was 50 nm with the round shape and encapsulation efficiency was 96.0%.Econazole nitrate nanoparticlesat the concentration of 0.5% could be rapidly separated with other elements by HPLC with a lowest quantitativeconcentration of 0.1 mg/L.The mean recovery rates of econazole nitrate nanoparticles were 98.09% in cornea and 99.66% in aqueous humor,respectively after topical administration.The peak levels of econazole nitrate nanoparticles in cornea and aqueous humor were achieved at 5 minutes after application ( cornea:40.620 μg/g± 7.756 μg/g;aqueous humor:0.504 mg/L±0.153 mg/L),and its half-life( t1/2 )in cornea and aqueous humor was 23.5 minutes and 18.6 minutes,respectively. Conclusions Econazole nitrate nanoparticles at 0.5% concentration can remain a feasible bioavailability in ocular tissue and therapeutic level in cornea and aqueous humor.