This article summarized some in vitro models of drug absorption,whose shortcomings and virtues were compared in order to be convenient for researchers to know and select optimal model.

Objective:To study the expression of p73? and its clinical significance in breast carcinoma.Methods:The expression of p73? was detected by immunohistochemistry in 41 breast carcinoma tissues,13 benign breast tumor tissues and 8 normal breast tissues.Results:The positive expression of p73? was found in 20/41(48.8%) of breast carcinoma tissues,1/13(7.7%)of benign breast tumor tissues,0/8(0)of normal breast tissues.The positive expression rate of p73? in breast carcinoma tissues was significantly higher than that in benign breast tumor tissues or normal breast tissues(P

Objective:To explore the etiology and drug resistance of the ICU ventilator-associated pneumonia.Methods: One hundred cases of patients with ventilator-associated pneumonia received in our ICU room were selected; the pathologic examination results were retrospectively analyzed.Results: One hundred and thirty five bacteria were isolated from 100 cases of patients with ventilator-associated pneumonia, including 95 cases of Gram-negative bacilli(70.5%), 34 cases of Gram-positive cocci(25.1%) and 6 cases of fungi(4.4%); The resistance rates of Pseudomonas aeruginosa and Klebsiella pneumoniae for cefazolin, gentamicin, levofloxacin, and trimethoprim-sulfamethoxazole were high; The resistance rate of Staphylococcus aureus for ceftazidime, ceftriaxone, cefepime, cefazolin, gentamicin, amikacin, ciprofloxacin, levofloxacin, cefoperazone/sulbactam and piperacillin were high.Conclusion: ICU ventilator-associated pneumonia pathogen was mainly Gram-negative bacteria, and showed multidrug resistance, imipenem and cefoperazone/sulbactam for most pathogens had better efficacy and worthy of clinical application.

Objective:To find a better way to protect the security and interests of vulnerable groups by exploring the problem of protecting the vulnerable groups in drug clinical trial from the perspectives of ethics committees,organization and researchers.Methods:According to the relevant literature and the actual situation of the hospital,this paper analyzed the security issues of vulnerable groups comprehensively.Results:Only the ethics committees,organization and researchers work together,can it protect the security and interests of vulnerable groups to the greatest extents.Conclusion:Further research on the security of vulnerable groups not only promotes the development of human health,but also plays a decisive role in improving the protection of subjects in drug clinical trial.

OBJECTIVE: To evaluate the utilization and its trend of narcotic analgetics in this hospital.METHODS: The use of narcotic analgetics during the period 2005-2007 in our hospital was analyzed retrospectively.RESULTS: The consumption quantity of narcotic analgetics in our hospital increased year-on-year,much as in the consumption of morphine preparations,with oral morphine preparations dominating the 3 first places over the 3 years,however,the increase of pethidine was slowed down in consumption quantity.CONCLUSION: The use of narcotic analgetics in our hospital is rational on the whole,but measures should be taken to tighten the control on the use of narcotic analgetics.

used at the primary-care settings in China to assess asthma control.

Objective To evaluate 18F-FDG PET/CT imaging in primary adrenal lymphoma (PAL). Methods Three male patients with clinically diagnosed PAL, aged 59 to 77 years old, were examined by18F-FDG PET/CT before histopathologic examination. The SUVmax ratio of tumor to liver (T/L)was calculated on 18F-FDG PET images. All patients underwent R-CHOP ( rituximab-cyclophosphamide,doxorubicin, vincristine, and prednisone) chemotherapy regimens. One patient had serial follow-up 18F-FDG PET/CT post therapy. Results The final diagnosis of all 3 cases was bilateral diffuse large B-cell lymphoma. The pathologic results of bone marrow biopsy were negative. Case 1 was in disease remission based on four times of follow-up 18F-FDG PET/CT. The patient's clinical follow-up was also negative and he was currently alive for more than 19 months. Case 2 was of late stage and suffered from adrenal insufficiency. He died 6 months after the diagnosis. Case 3 (the eldest patient) was treated with partial excision followed by the chemotherapy. He died of lung infection 12 months after treatment. Conclusion 18 F-FDG PET/CT may be of important value for maximizing patient management and survival for patients with PAL, a rare and highly malignant disease.

Objective To observe the effect of lycopene on myocardial interstitial fibrosis and to explore the possible mechanisms involved.Methods Sprague-Dawley rat myocardial infarction (MI) model was established by left anterior descending coronary artery ligation.Established MI model rats received lycopene or saline.After 28 days,myocardial fibrosis was observed by Masson staining.The expressions of Ⅰ type collagen,matvix metalloproteina-ses-9 (MMP-9) and matrix metall opeptidaseg(MAPKs) protein were detected in the peri-infarcted zone by Western blotting.Results In MI group,collagen volume fraction (CVF) was increased and the protein expressions of collagen Ⅰ,P-p38 and MMP-9 were increased in the peri-infarcted zone as compared with the sham group [CVF:(21.68±4.63)％ vs.(8.21±2.17)％; collagen Ⅰ:(1.58±0.22) vs.(0.97±0.09); P-p38:(1.93±0.44) vs.(0.85±0.21); MMP-9:(4.85±0.47) vs.(1.03±0.59); all P＜0.05].Lycopene attenuated the increments of myocardial infarction-induced collagen Ⅰ,p38MAPK and MMP-9 expressions [collagen Ⅰ:(1.24 ± 0.24) vs.(1.58± 0.22) ; P-p38:(0.85 ± 0.21) vs.(1.93 ±0.44); MMP9:(1.77±0.28) vs.(4.85±0.47); all P＜0.05],and decreased the collagen volume fraction in the peri-infarcted zone [CVF:(15.17±2.56)％ vs.(21.68±4.63)％,P＜0.05] as compared with the MI group.Conclusions Lycopene may improve ventricular remodeling after MI by inhibiting p38MAPK signaling pathway and MMP-9 expression.

Postprandial hyperglycemia is a risk factor for atherosclerosis and cerebro-vascular diseases. This article reviews the mechanisms of cerebrovascular diseases caused by postprandial hyperglycemia from aspects of postprandial hyperglycemia participating in the pathophysiological mechanisms of atherosclerosis, and the relations between postprandial hyperglycemia and cerebrovascular diseases.