Objective To investigate the clinical characteristics of upper gastrointestinal diseases in very old people (aged ≥ 90 years),and to explore the necessity and safety of the gastroscopy for the super elderly people.Methods Clinical data of 50 very old people were retrospectively analyzed.Results The total detection rate of upper gastrointestinal disease was 76.0％ (38/50),in which the reflux esophagitis (RE) was the most common (26.0％),followed by erosive gastritis (20.0％),atrophic gastritis (18.0 ％),peptic ulcer (12.0 ％),gastrointestinal cancer (10.0％),duodenitis (8.0％) and fundic gland polyps (6.0％) respectively.RE lesions detected by gastroscopy were mainly mild and were divided into endoscopic grade LA-A (46.1％),LA-B (30.8％),LA C (7.7％),and LA-D (15.4％) according to the Los Angeles classification.The most common symptoms were abdominal distension and anorexia,and the both incidences were 12.0％.There was no significant difference in the prevalence of clinical symptoms between the elderly people with upper gastrointestinal disease and without abnormal gastroscopic findings [44.7％ (17/38) vs.41.7％ (5/12),x2 =0.035,P＞0.05].22 patients (44.0％) underwent gastroscopy under intravenous anesthesia.Conclusions The incidence of upper gastrointestinal disease is high in very old people,and mild reflux esophagitis is the most common.Clinical symptoms are little or asymptomatic in most very old people.Gastroscopy under intravenous anesthesia is safe and feasible for the very old people.

A novel exonuclease protection mediated PCR assay (EPM-PCR) to detect the interaction of protein and DNA at a dioxin-responsive enhancer (DRE) upstream of the CYP1A1 gene in rat hepatic cytosol was established. A double-stranded DNA fragment containing two binding sites was designed and incubated with the aryl hydrocarbon receptor (AhR) transformed by 2,3,7,8-tetrachlorodibenzo-p dioxin (TCDD) to generate TCDD: AhR: DNA complex which could protect receptor-binding DNA against exonuclease II (Exo III) digestion. With Exo III treatment, free DNAs were digested and receptor-bound DNAs remained that could be amplified by PCR. By agarose gel electrophoreses a clear band (285bp) was detected using TCDD-treated sample, while nothing with control samples. To detect transformed AhR-DRE complex, 2 fmol DNAs and 3 ug cytosol proteins were found to be sufficient in the experiment. Compared with gel retardation assay, this new method is more sensitive for monitoring the Ah receptor-enhancer interaction without radioactive pollution.
Binding Sites ; Cytochrome P-450 CYP1A1/*genetics ; Cytosol/metabolism ; DNA-Binding Proteins/chemistry ; Exodeoxyribonucleases/chemistry ; Liver/*metabolism ; Polymerase Chain Reaction ; Rats, Sprague-Dawley ; Receptors, Aryl Hydrocarbon/*chemistry ; Tetrachlorodibenzodioxin/*analogs & derivatives ; Tetrachlorodibenzodioxin/chemistry

Objective To observe the influence of interleukin-1β (IL-1β) on the expression of phosphorylated signal transducers and activators of transcription 3 (pSTAT 3) in rat retinal MOiler cells. Methods For in vitro study cultured Mailer cells were treated with IL-1β of different concentrations (0, 0.1, 1, 5 and 10 ng/ml) for 24 hours. For in vivo study, 32 Sprague-Dawley(SD)rats were divided into 4 groups randomly (control group, 100,500 and 1000 ng/ml group) with 8 rats in each group. After 24 hours of injection with phosphate buffered solution (PBS), or 100, 500, 1000 ng/ml IL-1β into the vitreous treated retinas were evaluated by indirect immunofluorescence and western blotting. Results After 24 hours of incubation without IL-1β, pSTAT3 has little expression in cultured Muller cells, but was up-regulated by 1 ng/ml or higher IL-1β in a dosage-dependent manner (F=46.64, 43.78; P<0.01). pSTAT3 was not expressed in adult rat retina, but was up-regulated by vitreous injection of 100 ng/ml or higher IL-1β in a dosage-dependent manner (F=73.53, 43.70; P<0.01). pSTAT3 expressed mainly in inner nuclear layer and ganglion cell layer. Double-labeling showed that there was no co-staining of pSTAT3 and glial fibrillary treated with IL-1β. Conclusions Expression of pSTAT3 in MUller cells could be activated by IL-1β which may represent one pathway link to reactive gliosis.

Aim: To investigate the mechanism of anti-proliferation, anti-migration and anti-angiogenic effects of tanshinone ⅡA. Methods: In this study, MTT, 2-D/3-D migration, tube formation, PCR, chick embryo chorioallan-toic membrane (CAM) were used to evaluate the anti-proliferation, anti-migration and anti-angiogenic effects of tanshinone ⅡA. Results: Tanshinone ⅡA significantly inhibited the proliferation of human breast cancer line MDA-MB-435 with an IC_(50) of 21 nmol/mL And it is showed that breast cancer cells migration was effectively prevented by tanshinone ⅡA at 5 and 6 nmol/mL in a wound healing assay and a transwell migration assay. In ad-dition, tanshinone ⅡA inhibited the tube formation of newborn cattle aortic endothelial cells( NCAECs) after 2 h co-incubation with MDA-MB-435. These effects were not due to the inhibition of NCAECs proliferation; because tanshinone ⅡA non-selectively inhibited NCAECs growth with an IC_(50) of 124 nmol/mL Tanshinone ⅡA showed dose-dependent inhibitory effects on mRNA expression of VEGF and two transcription factors (HIF-1α/c-Myc) . Tashinone ⅡA was also found to inhibit angiogenic in vivo in the CAM assay. Conclusion: These results suggest that tanshinone ⅡA may exert its anti-proliferation, anti-migration and anti-angiogenic effects through down-regu-lating two transcription factors and VEGF. These novel anti-proliferations, anti-migrations, anti-angiogenic activi-ties of tanshinone ⅡA are likely to contribute to its cancer chemopreventive and therapeutic potential, especially in the treatment of breast cancer.

Hospital culture plays a more and more important role,among various factors that influence employee satisfaction.Study on hospital culture is gradually growing out of a pure conceptual research and emerging into an area of correlation analysis. Our studies on the hospital culture developments and employee satisfaction in a tertiary hospital,analyzed the correlations between hospital culture and employee satisfaction and its impact,with recommendations for reform strategies.

This article studies the application value of disposable umbilical cord clamp and amputator during gravida childbirth.The umbilicalis is clamped and sheared with disposable umbilical cord clamp and amputator in the area of 3~5mm far from the neonatal abdomen.The operation is simple and consumedly shortens the time and reduces the procedure compared to the traditional method.It is safe and convenient,which is worth spreading.

Heavy Metal Poisoning ; Humans ; Nervous System ; drug effects ; Poisoning ; Thallium ; poisoning

Objective To investigate the acoustic f eatures of voice in patients with abnormal lung function, evaluate the effect o f lung dysfunction on acoustics of voice,and observe the relationship between re spiration and phonation. Methods The voice signals of sustained vowel /a/ were mea sured by a micro-computer with Dr.speech science for windows software in 50 pati ents with abnormal lung function and 50 healthy adults. The acoustic parameters( F0,jitter,shimmer,intensity,NNE) were collected and analysed in lowest pitch,no rmal pitch and highest pitch.All patients were divided into two groups according to sex. Results In patients with abnormal lung function ,the pa rameters (shimmer, jitter, NNE,)were significantly increased or others(F0,inten sity) were significantly decreased in lowest pitch. Intensity decreased si gnificantly in highest pitch . There was a positive relationship between the de grees of lung dysfunction and the parameters of acoustics. Conclusion Abnormal lung function affected significantly on acoustics of voice in three different pitches; The changes of the parameters were related to the degrees of lung function.The results showed that respiratory activities play an important role in phonation.

OBJECTIVE:To study the effect of moxifloxacin on pharmacokinetics of phenytoin sodium in rabbits. METHODS: A total of 10 rabbits were injected with phenytoin sodium (10 mg?kg-1) via the vein in ear edge,with serum samples taken at 10,30,60,120,240,360,and 480 min,respectively for establishing phenytoin sodium alone group. 48 h after the last sampling,the rabbits were given oral moxifloxacin (10 mg?kg-1) for 5 consecutive days;on day 6,the rabbits were injected with phenytoin sodium (10 mg?kg-1) at 2 h after oral administration of moxifloxacin,then serum samples were taken at different time points for establishing combination group of phenytoin sodium and moxifloxacin. The serum concentrations of phenytoin sodium at different time points were determined by UV-spectrophotometry and the pharmacokinetic parameters were computed with 3p97 program. RESULTS: The plasma concentration of phenytoin sodium reduced in the combination group compared with alone group. The AUC in the two groups was (5 836.22?489.13) vs. (4 329.21?344.67) mg?min?L-1 (P0.05). CONCLUSION: The elimination of phenytoin sodium was significantly accelerated by combination with moxifloxacin.

The microcirculatory perfusion of liver, spleen, kidney, small intestine andtail were measured by a laser doppler flowmeter after intravenous injection of agkistro-don antithrombotic anzyme (0. 05 U, 0. 025 U/100 g B. W.) in 40 hemorrhagic shockrats and 15 hemorrhagic rabbits. The results showed that 5～20 min after injection therenal perfusion increased significantly, but there was no marked increase of renal arteryblood flow when it was simultanously detected with a electromagnetic flowmeter, thoughthe urine was increased. Authors suggested that Svate may have decreased the resistenceof renal microcirculation and accelerate the veosity of renal microcirculation, thus theyincreased the microcirculatory perfusion in renal cortex.