Antibodies, Monoclonal ; therapeutic use ; Antibodies, Monoclonal, Humanized ; Antineoplastic Agents, Hormonal ; therapeutic use ; Breast Neoplasms ; metabolism ; pathology ; therapy ; Female ; Humans ; Lymphatic Metastasis ; Receptor, ErbB-2 ; metabolism ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism ; Signal Transduction ; Tamoxifen ; therapeutic use ; Trastuzumab

Bacteria ; genetics ; pathogenicity ; Dental Research ; Genomic Islands ; Periodontitis ; microbiology

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.

Astrocytoma ; genetics ; metabolism ; pathology ; Brain Neoplasms ; classification ; genetics ; metabolism ; pathology ; Child ; Child, Preschool ; Chromosomal Proteins, Non-Histone ; genetics ; metabolism ; Chromosome Deletion ; Cyclin-Dependent Kinase Inhibitor p16 ; genetics ; metabolism ; DNA-Binding Proteins ; genetics ; metabolism ; Ependymoma ; genetics ; metabolism ; pathology ; Hedgehog Proteins ; genetics ; metabolism ; Humans ; Medulloblastoma ; classification ; genetics ; metabolism ; pathology ; Proto-Oncogene Proteins B-raf ; genetics ; metabolism ; Rhabdoid Tumor ; genetics ; metabolism ; pathology ; SMARCB1 Protein ; Signal Transduction ; Transcription Factors ; genetics ; metabolism ; Wnt Proteins ; metabolism ; beta Catenin ; genetics ; metabolism

The tuberous roots of Aconitum carmichaeli are largely used in traditional Chinese medicine and widely grown in Jiangyou, Sichuan, China. During the growth process, this medicinal plant releases a large amount of allelochemicals into soil, which retard the growth and development of near and late crops. Therefore, a pure culture experiment was thus carried out by seed soaking to study the allelopathic effects of extracts from tuberous roots of A. carmichaeli (ETR) on the seed germination and young seedling growth of Lolium perenne, Trifolium repens, and Medicago sativa, the late pasture grasses after cultivation of A. carmichaeli. The results showed that three pasture grasses varied significantly in seed germination and young seedling growth in response to ETR concentrations. Seed germination of M. sativa was stimulated by low ERT concentration (0.01 x g(-1)), while all of pasture grass seeds germinated poorly in solution with 1.00 g x L(-1). Seed soaking with 1.00 g x L(-1) also inhibited significantly the growth of pasture young seedlings, with M. sativa showing the highest seedling height reduction of 42.05% in seeding height, followed by T. repens (40.21%) and L. perenne with about 11%. Cultivation of L. perenne could thus be beneficial to increase whole land productivity in A. carmichaeli-pasture grass cropping systems. In addition, hydrolysis of protein, starch, and inositol phosphates was blocked and free amino acids, soluble sugars and phosphorus were decreased in seeds by seed soaking with ETR, which could be one of the reason for the inhibition of seed germination. There was a significant reduction in root vigor, nitrate reductase, and chlorophyll after the seed treatment with ETR, indicating the suppression of nutrient uptake, nitrate assimilation, and photosynthesis by allelopathic chemicals in ETR, which could lead to the slow growth rate of pasture grass seedlings.
Aconitum ; chemistry ; metabolism ; Allelopathy ; China ; Pheromones ; metabolism ; pharmacology ; Plant Extracts ; metabolism ; pharmacology ; Plant Roots ; chemistry ; metabolism ; Poaceae ; drug effects ; growth & development

Objective: To investigate arsenic trioxide (As 2O 3) -target interactions at the level of nuclear matrix (NM) in chronic myelogenous leukemia cell line K562 by proteomics. Methods: DNA fragmentation analysis was used for As 2O 3 induced apoptosis of K562 cells. The nuclear matrix proteins were analyzed by high-resolution two-dimensional gel electrophoresis and computer-assisted image analysis. Results: While more than 200 protein spots were shared among the nuclear matrices, about 18 distinct spots were found characteristic of As 2O 3 treated cells. Onset of mass mange apoptosis, and the profiling of nuclear matrix proteins had been alternated and it was a more sensitive indicator than nucleosomal DNA fragmentation against As 2O 3 treatment. Conclusion: As 2O 3 induced apoptosis in K562 cells in a dose-time-dependent manner. As 2O 3 might be clinically useful in treatment of chronic myelogenous leukemia and the changes of nuclear matrix proteins in the treated cells can be used as a useful indicator for the treatment.

Objective To observe the curative effect of botulinum toxin A(BTX-A)repeated intramuscular injection for treatment of serious spastic cerebral palsy.Methods Thirty cases with serious spastic cerebral palsy received local repeated intramuscular injection. The interval time was 3 months. The dose of BTX-A was 4 U/kg.The muscle tone was assessed with the modified ashworth scale and range of motion with physical rating scale(PRS).The indexes were evaluated before injection and 3 months after the second injection. Paired-samples t-test was used in the statistic analysis.Result The muscle tone and PRS had remarkable improvement after second therapy with BTX-A(P

Objective To identify the arteriosclerosis (AS)changes in peripheral artery and abdominal aorta of patients with familial hypercholesterolemia(FH) during follow-up.Methods Seventeen patients of 6 FH [5 male and 12 female with average age of (16.12?6.65) years old],along with 17 subjects of matching sexes and ages with normal blood cholesterol as healthy control group,underwent examination by color doppler ultrasound,and changes of intima-media thickness (IMT) in peripheral artery and abdominal aorta,severity of stenosis,morphology,and function were observed.Results For 17 patients of FH,the total cholesterol(TC),low density lipoprotein cholesterol(LDL-C) in serum were higher significantly and high density lipoprotein cholesterol (HDL-C) was lower significantly than those in healthy control group(Pa0.05).The IMT of carotid aorta,subclavicular aorta,common abdominal artery,and common femoral artery in 13 patients were showing various degrees of increase,yielding an average of 2.9 mm.As patients aged,this phenomenon was reported to be more profound in common abdominal aorta and femoral artery.Conclusions Patients of FH show AS lesion in early stage and it worsened as they aged,from carotid arteries to common abdominal aorta and femoral artery.Color doppler ultrasound can be a non-invasive examination for monitoring the progress of AS in blood vessels in patients of diagnosed FH.

Background and purpose:Hyperthermia could directly kill cancer cells or induce apoptosis,it has also been proved to improve immunity of patients.In this study,we evaluated the efficacy and side effects of hyperthermia combined with transcatheter arterial infusion chemotherapy in the treatment of intermediate and advanced non-small cell lung cancer(NSCLC).Methods:Forty patients with intermediate and advanced non-small cell lung cancer were randomly divided into two groups,with 20 each.Group A was treated with transcatheter arterial infusion chemotherapy in combination with hyperthermia,Group B was treated with interventional arterial infusion chemotherapy alone.Treatment response in both groups were evaluated as well as side effects after one or two cycles.Results:As to Group A,Karnofsky score had been improved in 16 cases,accounting for 80%(16/20);compared with 50%(10/20)in the Group B,there was significant difference(P

Accidents, Occupational ; Adult ; Dichloroethylenes ; poisoning ; Female ; Humans