Objective We discussed the optimal method for intestinal preparation before colonoscopy examination in order to increase the success rate of intestinal examination and reduce the incidence of adverse effect. Methods We divided 120 patients who were to undergo colonoscopy examination into group A, B and C with 40 cases in each group. Group A received oral magensium sulfate 100ml and 6000ml water after that on the morning of the examination. Group B received oral magensium sulfate 50ml and 2000ml in the evening before the examination, oral magensium sulfate 50ml and 400ml water on the morning of the examination. Group C was given oral magensium sulfate 100ml and 4000～5000 water at the same time. Group A and B took part in appropriate activity and were given health education. The effect of intestinal preparation was compared between the three groups. Results The cleaning degree of group B was better than those of the other two groups (P<0.05). The adverse effect of group B was less than that of group C (P<0.01). Conclusions Oral intake of magensium sulfate in the evening before and on the morning of the examination for intestinal preparation could increase the cleaning degree of intestine, facilitate the observation of disease part and lessen adverse effect. It gave satisfying examination results and made patients satisfied.

22 cases of chronic gastritis,8 cases of gastric cancer,and 3 cases of other gastric diseases.10 hea'thy adults were also studied to serve as the control.According to the diagnostic criteria of Chinese traditional medicine ,58 cases with epigastric pains out of the 80 were categorized into the group of spleno-gastric asthenia (SGA) of 35 cases and the group of hepatogastric incoordinatin (HGI) of 23 cases.The basal pressure and rhythmic contractions of the stomach in response to a definite volume loading were recorded.It was found that 60% of SGA cases and 56.8% of PU cases showed only a few low-amplitude or no contractions in response to all varieties of volume loading,which were significantly higher than that in HGI cases (26%) and the control (10%).In the interval between the contractions and relaxations of the proximal stomach the intra-gasrric pressure was significantly lower in SGA and PU cases than in HGI cases and the control.These findings indicate that the tension and contractility of the mesculature of the proximal stomach are markedly reduced in patients with PU and SGA.

In order to study the possible role of beta endorphin (? EP) in the pathogenesis of psoriasis, serum ? EP was detected by radioimmunoassay in 51 patients with psoriasis and 32 healthy controls. The results showed that serum ? EP level was markedly increased in patients with psoriasis in comparison with healthy controls. The serum ? EP level was reduced when the skin lesions of the patients were cleared after treatment, however, it was still higher than in healthy controls. Although there was a tendency towards an increase of ? EP in patients with precipitating factors in comparison with those without precipitating factors, their levels were not significantly different. There was a negative correlation between the intensity of pruritus and ? EP levels. It is suggested that ? EP involves in the pathogenisis of psoriasis. Its production and release were controlled by the central nervous system and also affected by the inflammation of skin lesions. There might be a causality between ? EP levels and inflammatory reaction of skin lesions.

To investigate the effect of preceding naloxone injection into the third cerebroventricle or acute subdiaphragmatic vagotomy on the gastric acid secretion inhibited by the somatostatin analogue octreotide given by intracerebroventricular (icv) injection. The third ventricles were cannulated in male Wistar rats anesthetized with sodium pentobarbital. One week later, acute gastric lumen perfusion was carried out. The gastric perfusion samples were collected every 10 min and were titrated by 0.01 mol/L NaOH to neuter. On the basis of subcutaneous injection of pentagastrin (G-5, 160 micro, g/kg), icv injection of physiological saline (group A, n = 20), icv injection of octreotide (0.05 micro g) (group B, n = 20), icv injection of naloxone (2.5 micro g)+octreotide (0.05 micro g) (group C, n = 20), acute subdiaphragmatic vagotomy+ icv injection of physiological saline (group D, n = 20), or acute subdiaphragmatic vagotomy+icv injection of octreotide (0.05 micro g) (group E, n = 20) were conducted. Before and after icv injection, 1-h total acid output (TAO) was determined and compared. The experimental data were expressed in change rate (%) of TAO. The change rates (%) of TAO were 4.60% in group A, -20.35% in group B, -18.06% in group C, 5.01% in group D and -21.59% in group E, respectively. Comparison of group B or C versus group A showed that P < 0.01 and comparison between the group E versus group D showed that P < 0.01. Whereas the differences between group C and group B, group E and group B were not statistically significant (P > 0.05 for all). The results indicate that the central inhibition of gastric acid secretion by octreotide may not be mediated by the endogenous opiate substance or its receptor and the peripheral pathway for icv injection of octreotide to suppress gastric acid secretion is via extra-vagus route.

MicroRNAs (miRNAs) play important roles in eukaryotes,plants and some viruses.It is increasingly clear that miRNAs-encoded by viruses can affect the viral life cycle and host physiology.Viral miRNAs could repress the innate and adaptive host immunity,modulate cellular signaling pathways,and regulate the expression of cellular and viral genes.These functions facilitate viral acute and persistent infections,and have profound effects on the host cell survival and disease progression.Here,we discuss the miRNAs encoded by herpesviruses,and their regulatory roles involved in virus-host interactions.

Objective To discuss the effeet of nursing intervention in the prevention of psychiatric disorder in patients after coronary artery bypass grafting (CABG). Methods Patients with CABG(202 cases) were divided into the control group (100 cases) and the intervention group (102 cases).The control group received routine treatment and nursing while the intervention group was given systemic nursing intervention.The mental status was evaluated by mini-mental status examination (MMSE). Results The incidence of psychiatric disorder in the intervention group was 4 cases (3.92%),which was statistically lower than those in the control group(16 cases,16.00%). Conclusions Effective nursing intervention combined with effective treatment could prevent and control the psychiatric disorder of patients after CABG.

Objective To discuss the value of nursing work in 64-slice CT urography. Methods 240 patients participated in the 64-slice CT urography, inquiring medical history and iodine allergic history, paying attention to their psychological state and finishing iodine preliminary test before examination, ob-serving patients carefully, pre-judging any possible adverse effect and formulating corresponding measures during the examination, giving expectant treatment according to the various condition and nursing instruc-tion. Results 239 patients passed through the examination smoothly, agents exosmosis happened in one case and led to failure, but satisfactory image was obtained after rescanning. Conclusions Nursing oper-ation penetrates every step of 64-slice CT urography, which is a non-traumatic, low-expense and high-safety examination. Effect nursing directly influences the accuracy of the results, proficient nursing opera-tion and patient psychological nursing is the important part of it.

OBJECTIVETo observe the effect of serum containing Tengcha total flavonoid and dihydromyricetin on proliferation and apoptosis of HepG2 cells.

METHODSerum containing respectively Tengcha total flavonid, dihydromyricetins and CTX and control serum were prepared by serological pharmacology method. MTT assay was used to observe the proliferation inhibition rate of HepG2 cells after incubated with different kinds of serum. Inverted microscope was utilized to observe the morphological changes after HepG2 cells were treated with different serum. AnnexinV/7AAD double label method was used to detect earlier period apoptosis cells.

RESULTBoth serum containing 20% Tengcha total flavonid and serum containing 20% dihydromyricetin could restrain the HepG2 cells proliferation at different levels and the morpholological changes of apoptosis were observed. AnnexinV/7AAD double label method showed that the earlier period apoptosis cells rates were increased by serum containing 20% Tengcha total flavonoid, but serum containing 20% dihydromyricetin did not show influence on the earlier period apoptosis cells.

CONCLUSIONTengcha total flavonoid can restrain the HepG2 cells proliferation and induce earlier period apoptosis cells.

Ampelopsis ; chemistry ; Animals ; Apoptosis ; drug effects ; Cell Proliferation ; drug effects ; Flavonoids ; blood ; pharmacology ; Flavonols ; blood ; pharmacology ; Hep G2 Cells ; drug effects ; Humans ; Male ; Rats ; Rats, Wistar

ObjectiveTo evaluate the improvement on test performance of UniCel DxH 800 automated hematology analyzer for complete blood count (CBC) by detecting its performance indicators and comparing the differences of the results with LH 750 hematology analyzer and ADVIA 2120 hematology analyzer.MethodsThe precision,carryover and linearity of UniCel DxH 800 in measurement of CBC were evaluated by using fresh blood samples and instrument quality control of products.To evaluate the accuracy of leukocyte differential count and reticulocyte count with the microscopic method as the “gold standard”.To calculate the bias and correlation between the results measured by LH 750,ADVIA 2120 and UniCel DxH 800 hematology analyzers and compare these three instruments on the validity of the alarm in abnormal cells.ResultsIntra-precision:The coefficient of variation (CV) of the results of RBC,Hb and MCV were less than 0.5％,the CV of WBC and PLT results were less than 1.5％.Inter-precision:the CV of the parameters above were less than 2.5％.The carryover rate of WBC,RBC,Hb,MCV and PLT were less than 0.51％.In the concentration range covered by clinical samples,the correlation coefficients between the measured values and theoretical value in testing WBC,RBC,Hb and PLT were greater than 0.999 ( P ＜0.01 ).The measurement results of WBC,RBC,Hb,MCV and PLT hy UniCel DxH 800,ADV1A 2120 and LH 750 hematology analyzers have good correlation (r ＞ 0.973,P ＜ 0.01 ).Correlation of reticulocyte count between the UniCel DxH 800 hematology analyzer and microscolpic method was significant (r =0.920,P ＜0.01 ).Correlation of leukocyte differential count about the grauulocytes, lymphocytes and eosinophils between the UniCel DxH 800 hematology analyzer and microscopic method was good (r =0.914,0.900 and 0.725,P ＜0.01 ),followed by monocytes ( r =0.612,P ＜0.01 ),which were better than the LH 750 with similar detection principle.The UniCel DxH 800 hematology analyzer demonstrated higher sensitivity (96.6％ ) for the alarm of abnormal cells and achieved a lower false-negative rate (2.5％ ).Meanwhile,the sensitivity of the neutrophil nuclei left shift was higher (90.5％ ) and the false-negative rate (5.0％) was lower.ConclusionsThe UniCel DxH 800 hematology analyzer for complete blood count shows advantages of high precision,low carryover rate and wide linear range.The results detected by the UniCel DxH 800 hematology analyzer have good correlation with the LH 750 and ADVIA 2120.

OBJECTIVETo examine the effects of Panax notoginseng on the expression of cytochrome P450 (CYP) genes and glutathione S-transferase (GST) genes in lung tissues of male SD rats.

METHODRats were administered P. notoginseng 2 or 4 g X kg(-1) bw/d by gavage daily for 15 days. The levels of gene expression of CYP1A1, CYP1A2, CYP1B1, CYP2B1, CYP2E1, CYP3A1, CYP4A1 and glutathione S-transferase ml (GST-ml) and glutathione S-transferase pi (GST-pi) were examined by quantitative real-time reverse-transcription polymerase chain reaction (quantitative real time-RT-PCR) assays.

RESULTThe expression of CYP2E1, CYP1A2 and GST-pi genes was not changed by P. notoginseng treatment, however, 2 g * kg-1 dose of P. notoginseng gave a 4.00-fold (P < 0.05) induction of CYP3A1 mRNA. P. notoginseng significantly increased mRNA expressions of GSTml (1.64-fold, P <0. 05 and 1.53-fold, P > 0.05) and CYP1A1 (3.44-fold, P > 0.05 and 6.05-fold, P < 0.05) in the 2 g x kg(-1) and 4 g x kg(-1) bw/d treatment groups, respectively, but P. notoginseng had a inhibitory tendency on mRNA expressions of CYP1B1 (0.81-fold, P > 0.05 and 0.38-fold, P > 0.05) and significantly inhibited the expressions of CYP2B1 (0.47-fold, P < 0.05 and 0.50-fold, P < 0.05) and CYP4A1 (0.54-fold, P < 0.05 and 0. 72-fold, P < 0.05) genes in the two groups.

CONCLUSIONA specific effect of P. notoginseng on the expression of different cytochrome P-450 genes or glutathione S-transferase genes in the lung tissues of rats was observed in this investigation. These findings would be very important and helpful for studying the mechanism of action of P. notoginseng and its reasonable use in clinic.

Animals ; Cytochrome P-450 Enzyme System ; genetics ; metabolism ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Gene Expression ; drug effects ; Glutathione Transferase ; genetics ; metabolism ; Lung ; drug effects ; enzymology ; Male ; Panax notoginseng ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley