Objective To investigate effects of Livin antisense oligodeoxynucleotides(ASODN) on the proliferation and apoptosis of human leukemia(HL60) cells.Methods Livin protein on HL60 cells was examined by immunohistochemistry.Specific phosphorothioate antisense oligodeoxynucleotides and missense oligodeoxynucleotides target Livin mRNA were synthesized and transfected into HL60 cells following cationic liposome.The proliferation inhibition of HL60 cells was assessed by MTT.The expression of Livin mRNA was detected by RT-PCR.Transmission electron microscope and TUNEL technology were used to detect the apoptosis and morphologic change.ResultsASODN of 600 nmol/L inhibited the HL60 cell proliferation and the expressions of Livin mRNA.The percentage of apoptosis detected by TUNEL was 38.48%?4.37%.cellar ultrastructure was markedly destroyed by Livin ASODN.A significant difference was found when compared with the control group(P

Objective: To investigate the effect of antisense oligodeoxynucleotide (ASODN) of Livin mRNA on the proliferation and apoptosis of human lung adenocarcinorna A549 cells. Methods: Livin ASODN was transfected into A549 cells mediated by cationic liposome. The proliferation rates of A549 cells were assessed by MTT method. The transcription of Livin mRNA was detected by RT-PCR. The Livin protein expression was determined by immunohistochemistry and confocal laser scanning microscopy before and after transfection. The apoptotic ratios of A549 cells were examined by acridine orange/ethidium bromide(AO/EB) fluorescent staining. Results: It was observed that A549 cells expressed both Livin α and Livin β simultaneously, and the distribution of Livin protein could be observed in both cytoplasm and nuclei. The proliferation of A549 cells was inhibited significantly by Livin ASODN in a dose-dependent manner (P<0.01). After transfection of Lip-ASODN at a final concentration of 400 nmol/L, the expressions of Uvin were inhibited at mRNA and protein levels and the apoptotic ratio reached (31.25 ± 5.75)%. The difference was significant compared with control group [ (3.23% ± 1.98)%, P<0.01]. Conclusion: Livin ASODN significantly down-regulates the expression of Livin mRNA and effectively inhibites the proliferation and induces the apoptosis of A549 cells. Therefore Livin gene may become a new target for gene therapy for lung cancer.

Adolescent ; Alopecia ; diagnosis ; therapy ; Bone and Bones ; abnormalities ; Denture, Complete, Upper ; Diarrhea ; diagnosis ; therapy ; Female ; Humans ; Spasm ; diagnosis ; therapy

Bioreactors ; Humans ; Liver Failure, Acute ; therapy ; Liver, Artificial ; classification ; Sorption Detoxification ; instrumentation ; methods

Air ; analysis ; Chromatography, High Pressure Liquid ; methods ; Polyamines ; analysis ; Workplace

Clinical teaching constitutes a critical content of clinical course system.To that aim,we formulate typical case archive for teaching and apply bed-side teaching combined with PBL(problem based learning) method.Still supported by personating,case investigation and casuistics as well as multimedia means,we teach students in accordance with their aptitude and in so doing,initiatives of students can be mobilized to ensure sound teaching effects.

Objective To figure out changes of serum excitatory amino acids (EAAs) levels in patients with amnestic mild cognitive impairment (aMCI) and Alzheimer's disease (AD).Methods The levels of serum EAAs was assessed in 34 cognitively normal control subjects,30 patients with aMCI,and 32 patients with AD using high performance liquid chromatography (HPLC).Results ①Higher serum concentrations of glutamate((39.6?22.1) ?mol/L),alanine((282.5?71.3) ?mol/L) were found in the aMCI patients (P=0.044,P=0.007),and higher serum concentrations of glutamate ((42.2?21.8) ?mol/L),glycine ((464.2?142.6) ?moL/L) were found in the AD patients than in the control subjects (P=0.010,P=0.010).②No statistically significant difference of EAAs level between the aMCI and AD groups was found.③A close and positive correlation between the serum concentrations of glutamate, aspartate and the mini-mental status examination scores were found in AD patients:the 2 amino acid levels were higher in patients with mild dementia((42.1?21.3),(55.0?29.0) ?mol/L) than those with moderate or severe dementia ((25.4?9.2) ?mol/L,P=0.023;(34.6?11.1) ?mol/L,P=0.036). Conclusion EAAs,correlating with the severity of the condition,play a significant role in AD,while aMCI patients also have disturbance of metabolism of EAAs,indicating that it has similar pathogenesis to AD.

● AIM: To explore the role that hepatocyte growth factor plays in proliferative vitreoretinopathy (PVR) after retinal detachment.● METHODS: The contents of hepatocyte growth factor in subretinal fluid (SRF) in 49 cases with retinal detachment were measured with enzyme-linked immunosorbent assay.● RESULTS: With the worsening of PVR and vitreous opacity and prolonging of disease course, the content of hepatocyte growth factor increased (P＜0.05), the difference being statistically significant.● CONCLUSION: The change of hepatocyte growth factor in SRF had a close relation ship with the occurrence and development of PVR after retinal detachment.

The risk factor of dental fluorosis are mainly related to the cancen tration of fluoride in the drinking water,the supplements of fluoride,nutrition states and regime,the time of fluoride exposure.Other factor such as the period of mother's milk feeding,the altitude of resident,the environmental pollution,the education degree of parents,and the level of health service of the community are also contributed to the development of dental fluorosis.Besides,the knowledge of dentists,the health habits of individual,the condition of economic,and so on is somehow the risk factor of dental fluorosis.The chances of fluoride exposure will become more often as the prosperous of the society.Thus any health policy of the complement of fluoride should be adapted to local conditions.

Objective To evaluate the accuracy of bispectral index(BIS)and entropy index in monitoring the depth of anesthesia in patients during target-controlled infusion(TCI)of propofol on induction of anesthesia.Methods Fifty ASA grade Ⅰ-Ⅱ of chronic sinusitis patients who performed the surgery of nasal sinus patency were enrolled in this study.After into operation room(T0),anesthesia was induced with TCI of propofol,and it was added 0.3 μ g/ml after 30 seconds once the plasma drug level was 2.1 μ g/ml(T1)until loss of consciousness(T2),and added 0.5 μg/ml(T3).When tracheal intubation,the patients was injected 0.6 mg/kg rocuronium in their intravenous at the prospective plasma drug level(T4).Each case was monitored with BIS,state entropy index(SE)and response entropy index(RE).The data at following time were recorded:T0-T4,tracheal intubation(T5),1 minute and 3 minutes after tracheal intubation(T6,T7),skin incision(T8).Results The value of BIS,SE and RE were significantly decreased compared with T0 (P ＜0.05).Mean arterial pressure(MAP)and heart rate were in normal range.The value of RE was significantly higher than SE at all the time points(93 ± 9 vs.87 ± 5,88 ± 12 vs.82 ± 12,73 ± 25 vs.72 ± 21,57±21 vs.56±22,46± 16vs.43 ± 17,39± 14 vs.37± 12,36± 14vs.34± 11,35 ± 11 vs.32±9,39±15 vs.36 ± 12)(P ＜ 0.05),but there was no significantly difference between BIS and SE at all the time points(P ＞ 0.05).The value of BIS had significantly positive correlation with SE and RE(r =0.887,0.901 ;P ＜ 0.01).Conclusions During deep hypnosis,BIS,SE and RE all can provide information about the level of consciousness during TCI of propofol on induction of anesthesia.RE is more preponderant as a monitor than BIS and SE.