Objective To evaluate relationship between p53 codon72 polymorphism and cervical cancer(CC) by using meta-analysis. Methods Studies from 1998 to 2004 were retrieved through Medline, Elsevier, EBMR, Ovid, CNKI and VIP databases without language limitation. The unpublished data of our study was also included. The inclusion criteria of studies were: ① case-control studies associated with p53 codon72 genotype/allele frequencies and CC. ② CC as the outcome of interest. ③ the risk for CC had odds ratio or enough information to calculate it. RevMan4.2 software was applied to process data. Results All studies were analyzed as subgroups according to pathologic histology and race/region. The outcome of CIN of Asia and European population subgroups showed no statistically difference with the control groups. However, in ICC subgroups the frequencies of Arg/Arg genotype were significantly higher than that in the control group(Z=2.43, P=0.01, OR=1.28; Z=2.44, (P=0.01), OR=1.45). Conclusion This study suggests that polymorphism at codon72 of p53 gene is not associated with an increased susceptibility to CIN. However, a slightly increased risk was observed for ICC of Asian and European population subgroups. A possible susceptibility role of p53 codon72 polymorphism at a late carcinogenetic stage of cervical cancer cannot be ruled out.

Objective To investigate the pharmacokinetics of propofol when combined with remifentanil in patients with liver cirrhosis.Methods Ten patients (5 males, 5 females) with liver cirrhosis scheduled for endoscopic esophageal varix ligation (test group) and 10 cases (5 males, 5 females) with normal liver function scheduled for gastroscopy (control group), aged 18-55 yr, weighing 40-75 kg, were studied. The patients were unpremedicated. All the patients received iv injection of propofol 1.5 mg/kg and remifentanil 0.5 μg/kg, and 5 min later propofol 0.5 mg/kg and remifentanil 0.2 μg/kg was given again. Blood samples were taken from radial artery before administration and at 2, 5, 10, 15, 20, 30, 45, 60, 80 and 120 min after administration for determination of the plasma propofol concentration using gas chromatography-mass spectrography. The pharmacokinetic parameters were calculated using DAS 2.0 software.Results The pharmacokinetics of propofol was best described by a three-compartment open model. There was no significant difference in the distribution half-life, elimination halflife , terminal half-life, area under the curve and transfer rate constant between the two groups ( P ＞ 0.05) . The apparent volume of distribution of propofol and clearance were significantly increased in test group compared with control group (P ＜0.01) .Conclusion When propofol combined with remifentanil is used in patients with liver cirrhosis, the apparent volume of distribution of propofol and clearance are significantly increased, while no changes in the other pharmacokinetic parameters are found.

Objective: For information collection and processing problems currently existing hospital medical equipment management, we design a system design scheme based on RFID technology to achieve the implementation of intelligent management and data processing. Methods:RFID technology is through the electronic tag, reader, the application software system to accomplish the working process of the RFID system. Results:System design scheme can realize comprehensive monitoring and management of hospital medical equipment;realize information management of hospital equipment. Conclusion:The advantage and the use value of RFID technology will change management mode of medical equipment, and bring new opportunities and challenges to the medical equipment management.

Asthma is a chronic airway disease characterized by airway inflammation and airway remodeling. Chronic airway inflammation can be involved in airway remodeling in asthmatic patients by incuding epithelial-mesenchymal transition (EMT).Bromodomain-containing protein 4 (BRD4) is a key transcriptional regulator in mammals,and many evidences have shown that BRD4 plays a pivotal role in airway remodeling via nuclear factor-κB/RelA signaling pathway. This review summarizes the recent advances in the role of BRD4 in regulating EMT,with an attempt to elucidate the molecular mechanisms of asthma and inform the prevention and control of asthma.

Objective To investigate the clinical effects of trophic feeding in preterm infants. Methods 93 preterm infants with asphyxia, prenatal asphyxia or respiratory distress syndrome who could not receive routine feeding were enrolled in this study. These patients were randomly divided into the treatment group and the control group. The hospitalized days, the time of tolerating milk feeding, regaining the birth body weight and discontinuing intravenous infusion were compared between the two groups. Results Compared with the control group, the hospitalized days, the time of tolerating milk feeding, regaining the birth body weight and discontinuing intravenous infusion in the treatment group decreased by 4 76?1 81, 3 22?0 50, 2 71?0 95 and 2 68?1 09 days, respectively(P

Objective To evaluate the efficacy of servo controlled sevoflurane closed-circuit anesthesia and the feasibility of the predictive and intelligent control.Methods One hundred and forty-three ASA Ⅰ-Ⅲ patients (90 males, 53 females) aged between 3-77 yrs undergoing elective surgery were studied. Anesthesia was induced with intravenous fentanyl 2-3 ?g ?kg-1 , midazolam 0.12 mg?kg-1 and vecuronium 0.1 mg?kg-1 . After tracheal intubation the tracheal tube was connected to the servo-controlled closed-circuit system composed of IBM computer, O2 mass flow controller and electrically controlled sevoflurane injection pump and multifunctional monitor. The fresh gas flow of O2 = [body weight (kg)3/4 ? 10 + 20] ml?min-1 . The end-expired sevoflurane concentration was maintained at 1.3 MAC by predictive and intelligent control.Results The average wash-in time to reach the target concentration was (5.2 ?2.4) min. The O2 flow rate was(0.22?0.04) L?min-1 . The cumulative uptake of sevoflurane was 5.16 ml, 7.74ml, 9.17ml, 11.08ml, 12.57ml, 13.00ml, 14.18ml, 15.60ml, 18.56ml and 24.6 ml at 30, 60, 90, 120, 150, 180, 210, 240, 300 and 420 min respectively. The uptake rate of fluid sevoflurane was equivalent to (0.2673e-0.0598t + 0.2269e-0.0597t + 0.1150e-0.002t) ml?min-1 . Conclusion The servo controlled sevoflurane closed-circuit system can effectively control the pre-set end-tidal sevoflurane concentration in spite of the influence of multiple factors and is safe and effective.

Objective:To explore the clinical application in urinary system stones of the inspection technologies intravenous pyelography (IVP),computer tomography urography (CTU) and magnetic resonance urography (MRU). Methods:We collected 100 cases of urinary system stones on which 80 were carried out to IVP,60 to CTU and 35 to MRU,25 patients were implemented all 3 examinations. CTU and MRU are reconstructed with multi-level reorganization (MPR),curved projection reproduction (CPR),volume reproduction (VR) and the maximum intensity projection (MIP). Results:Stones were found in 73 patients of the 80 people by IVP,the diagnosis rate is 91.3 %. Stones were found in all the 60 patients except 1 by CTU with images direct and accurate,the diagnosis rate was 98.1 %. By the MRU,stones were found in 20 of the 35 patients at a display rate of 57.1 %,with images displayed in a low stone location signal,filling defect and the hydrocele circs of renal pelvis and ureter. Conclusion:IVP is a simple method,easy-to-patient acceptance and has a high detection rate of stones; CTU has a good image quality and the detection rate is higher than the stone IVP. By combining with the original cross-sectional image,the rate of diagnosis is up to 98%; as a non-invasive and no contrast agent approach,MRU is also very important in the diagnosis of stones.

A blood film slide taken from a patient previously diagnosed as vivax malaria in Mojiang County, Yunnan Province, showing atypical forms. The ring forms had multinuclei, and the late trophozoites trended to form band. The schizonts and gametocytes were somewhat alike to Plasmodium vivax. PCR amplification confirmed that the patient was infected by P.knowlesi.

Animals ; Danazol ; pharmacology ; Endometriosis ; drug therapy ; Endometrium ; drug effects ; Female ; Interleukin-6 ; metabolism ; RNA, Messenger ; genetics ; Rats ; Rats, Sprague-Dawley

γ-Secretase is aⅠtransmembrane protease associated with Alzheimer disease(AD), and including four subunits:presenilin,presenilin enhancer-2,anterior-pharynx-defective1 and nicastrin. In recent studies,the ultra-high-resolution cryo-electron microscope has been used for the first time, revealing the humanγ-secretase″horseshoe″,the three-dimensional structure and the arrangement of the subunits. This technique has shed light on the regulation of the enzyme pathway and mechanism. In addition,the γ-secretase modulators,including non-steroidal anti-inflammatory drugs,have been shown in vitro to inhibit γ-secretase activity and selectively reduce the level of Aβ42 against AD. They have provided an effective approach,with broad prospects for development. Studies in this area have become a hot topic in recent years. Here we summarized the γ-secretase subunits regulatory pathways, humanγ-secretase fine three-dimensional structure andγ-secretase modulators .