1.Navelbine in the Treatment of Recurrent and Metastatic Breast Cancer.
Journal of Medical Research 2006;0(03):-
Objective To evaluate the efficacy and adverse reactions of Navelbine(NVB)in the treatment of recurrent and metastatic breast cancer.Methods 34 patients with recurrent and metastatic breast cancer were treated with Navelbine in this clinical study,and 16 patients were treated by the NP(DDP+NVB)regimen,12 patients by the NA(ADM+NVB)regimen,6 patient by single-agent NVB.34 patients received above regimens for two cycles(3~4 week a cycle).Result The overall response rate(CR+PR)was 35.3%,clinical benefit rate(CR+PR+SD≥6 months)44.1%,disease contrrol rate(CP+PR+SD)58.8%,the median time to failure 3.4 months(range:0.7~11 months),the median time to progression(TTP)3 months(range:0.8~11 months),and the median duration of response(CP+PR)5 months(range:2~11 months).The main side effect of the therapies is bone marrow depression,and the grade Ⅲ~Ⅳ leucopenia is 35.3%.Conclusion Single Navelbine and Navelbine plus DDP(or ADM)are effective and well tolerated treatments in patients with recurrent and metastatic breast cancer.
3.Recent advances in diabetic cataract advanced glycation end products and its inhibitors
Chinese Journal of Experimental Ophthalmology 2011;29(8):760-763
Diabetic cataract is an metabolic-type cataract. Its pathogenesis mechanism is not completely clear. Researches demonstrated that glycosylation plays an increasingly important role in the formation of diabetic cataract,and increased blood glucose level promote the pathogenesis and progression of diabetic disease by accelerate the glycosylation response. Therefore, more researches on advanced glycation end products(AGEs) and its inhibitors is being concerned. The advance in the study of AGEs concept, its effect on diabetic cataract formation, the influence of AGEs inhibitor on diabetic cataract are summarized in this article.
4.Effect of high mobilityg group box-1 protein on interleukin-2 and interleukin-2 receptor α expressions in human T lymphocytes
Fenghua YAO ; Yongming YAO ; Lifeng HUANG ; Haidong MENG ; Ning DONG
Chinese Journal of Emergency Medicine 2009;18(11):1194-1197
Objective To investigate the effect of high mobility group box-1 protein (HMGB1) on inter-leukin-2 (1L-2) and interleukin-2 receptor α (IL-2α) expressions in human T lymphocytes and its potential regulat-ing mechanism in vitro. Method Human T lymphocytes were isolated and suspended, the cells were cultured with 20 μg/mL phytohemagglutinin (PHA) in 5% CO_2 at 37 ℃, recombinant human HMGB1 (rhHMGB1, 0, 10, 100, 1000 ng/mL) was added with the PHA and cultures were centrifuged at 12 and 48 hours for cell collect-ing. Reverse transcription polymerase chain reaction (RT-PCR) amplification was perfomed to determine gene ex-pressions of IL-2, IL-2Rα. IL-2, sIL-2R protein levels in cell culture supematants were measured by ELIZA. Re-sults After coincubated with rhHMGB1 (10, 100, and 1000 ng/mL) for 12 hours, IL-2 levels in cell culture su-pernatants respectively were 0 . 064 ± 0. 017 μg/L, 0.076±0.033 μg/L, and 0.061 ±0.02 μg/L, which were significantly higher compared with the untreated cells (0.045±0.011 μg/L, P < 0.05 or P < 0.01). Mean-while, IL-2 mRNA expression was markedly up-regulated following rhHMGB1 stimulation in various doses (F = 4.6872, P < 0.01). At 48 bourn, however, both IL-2 mRNA expression and protein production tended to de-crease along with an increased dose of dd-IMGB1 stimulationn. IL-2/sIL-2R ratio in 1000 ng/mL rhHMGB1 was markedly lower than that in 10 ng/ml rhHMGB1 (0.036±0.015 vs.0.055±0.017, P <0.05), together with down-regulation of IL-2Rα mRNA expression(P <0.01). Conclusions These data indieated that HMGBI could marked influence the IL-2/IL-2R expression in human T lymphocytes. With the increase in stimulating doses and prolongation of time, HMGBI might down-regulate T cell-mediated immune response of human lymphocytes.
5. Research of in vitro metabolism of di-n-butyl-(4-chlorobenzohydroxamato) tin (IV) chloride in rat liver microsomes
Chinese Pharmaceutical Journal 2013;48(13):1065-1068
OBJECTIVE: To study the in vitro metabolism and enzyme kinetics of di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride in rat liver microsomes, and to identify the major cytochrome P450 isozymes involved in the metabolism of di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride in rat liver microsomes. METHODS: By optimizing the incubation conditions of di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride in rat liver microsomes, the enzyme kinetics in different enzyme sources was researched; the cytochrome P450 isozymes involved in metabolism of di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride were preliminarily explored through in vitro inhibition experiments. RESULTS: Different enzyme source metabolism experiments showed that between phenobarbital(PB) and desamethasone(Dex) induction groups and blank control group there had significant differences, but between the BNF group and blank control group there had no significant difference; the inhibition experiments revealed that ketoconazole had strong inhibition effect on di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride metabolism. CONCLUSION: CYP3A plays a leading role in di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride metabolism, and CYP2C9 may be partly involved. CYP1A has no catalysis action on metabolism of di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride. The Results suggest that attention should be paid to the possibility of drug interactions when di-n-butyl-(4-chlorobenzohydroxamato) tin(IV) chloride is combined with the drugs metabolized by above-mentioned isozymes.
6.Forensic Validation of the Goldeneye™ DNA ID 25A Kit.
Journal of Forensic Medicine 2015;31(4):284-286
OBJECTIVE:
To test and estimate the forensic application of Goldeneye™ DNA ID 25A Kit.
METHODS:
The kit was validated by a series of tests for accuracy, sensitivity, consistency, peak height balance, stability, and mixed samples through measured blood samples and other samples in routine casework.
RESULTS:
The peak height balance of the different loci was ≥ 42%. The genotyping results of the positive control DNA was accurate. The complete STR genotyping result could be obtained from 0.125 ng positive control DNA.
CONCLUSION
Goldeneye™ DNA ID 25A Kit is suitable for criminal cases and DNA database in forensic practice.
Asian People/genetics*
;
China
;
Chromosomes, Human, Y
;
DNA/genetics*
;
DNA Fingerprinting/standards*
;
Databases, Nucleic Acid
;
Female
;
Forensic Genetics/methods*
;
Genotype
;
Humans
;
Polymerase Chain Reaction
;
Polymorphism, Genetic
;
Reproducibility of Results
;
Sensitivity and Specificity
7.Expression and clinical significance of tenascin and CD34 in human cholangiocarcinoma
Lin WANG ; Xiaogang DONG ; Jun YAO
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(01):-
0.05).CD34 showed widespread expression in cholangio-carcinoma tissues,but limited in normal bile duct,which showed significant difference(P
8.The protective effect of pentoxifylline on acute lung injury in sepsis
Lifang WANG ; Yongming YAO ; Ning DONG
Chinese Journal of General Surgery 2001;0(09):-
Objective To study the effect of pentoxifylline (PTX) on acute lung injury (ALI) in murine sepsis induced by intra abdominal infection. Methods Wistar rats were subjected to sepsis caused by cecal ligation and puncture (CLP), and animals were randomly divided into normal controls ( n =6), sepsis group ( n =18), and PTX treated group ( n =18). Pulmonary biopterin, nitric oxide (NO) levels, and pulmonary myeloperoxidase (MPO) activities were measured, guanosine triphosphate cyclohydrolase Ⅰ (GTP CHI), inducible nitric oxide synthase (iNOS), and tumor necrosis factor ? (TNF ?) mRNA expression were determined.Results Early treatment with PTX significantly decreased pulmonary MPO activities and TNF ?mRNA expression at 2 hours after CLP. Meanwhile, pulmonary biopterin, NO, GTP CHI, and iNOS mRNA expression levels were much lower in the treatment group than those in the non treatment group ( P
9.Psychological Characteristics and Countermeasures of Adult On Porcelain-fused-to-metal restorations of Vital Teeth
Yao DONG ; Xiaohong LI ; Zhenghui WANG
Chinese Medical Ethics 1995;0(02):-
Patients on Porcelain-fused-to-metal restorations of vital teeth are increasingly year by year, this article mainly discusses the psychological characteristics of adult on porcelain-fused-to-metal restorations of vital teeth on the view of medical ethics.It is helpful to lighten patients’burden and complete treatment successfully by improving the qualities of dentists and giving patients psychological guidance.
10.Endoscopic Thyroidectomy via Breast Areola Approach:Report of 18 Cases
Guodong YAO ; Peide DONG ; Xinlin WU
Chinese Journal of Minimally Invasive Surgery 2005;0(11):-
Objective To investigate the feasibility and cosmetic results of endoscopic thyroidectomy via breast areola approach.Methods From January 2004 to January 2006,endoscopic thyroidectomy was performed through the breast areola approach in 18 patients with benign thyroid mass.Results The surgery was accomplished successfully in all the 18 cases.The operation time ranged 45-120 min(mean,62 min) for unilateral resection and 90-180 min(mean,98 min) for bilateral resection.The intraoperative blood loss ranged 6-20 ml(mean,11 ml) for unilateral resection,and 15-70 ml(mean,29.5 ml) for bilateral resection.Postoperative hospital stay was 3-5 days.No complication occurred after the operation.The patients were followed up for 6-12 months(mean,9 months).The wound healed well in all the patients,inconspicuous scars or no recurrence was observed during the follow-up.Conclusions Endoscopic thyroidectomy via breast areola approach is a safe and feasible procedure with satisfying neck cosmetic outcome.