Multidrug resistance (MDR) is the most common cause in the failure of cancer chemotherapy. Drug transporters play an important role in multidrug resistance in cancer. Activation of drug pumps which belong to ATP-binding cassette (ABC) transporters leads to the efflux of drug via cell membrane.Three subgroups of ABC transporters are involved in the transport of cytotoxic drugs.These transporters include ABCB subgroup,ABCC subgroup and ABCG subgroup. In this review,the author discussed the recent research advances in the ABC transporters associated with MDR.

Objective To compare the induction of and emergence from anesthesia with target-controlled infusion (TCI) of propofol-remifentanil/fentanyl and isoflurane inhalation. Methods Sixty ASA Ⅰ -Ⅱ patients (26 male, 34 female) aged

Objective To compare the effects of target-controlled infusion (TCI) of remifentanil (R) in various doses in combination of TCI propofol (P) on hemodynamic response to tracheal intubation. Methods Fifty ASA Ⅰ - Ⅱ patients (18 male, 32 female) aged 100 bpm) . The TCI system comprised Graseby 3500 infusion pump controlled by computer program Rugloop which included Marsh and Minto pharmacokinetic parameters. Results Induction time (from start of TCI R + P to LOC) was significantly longer in group RO and R2 than that in group R4, R6 and R8 ( P

Objective To assess the value of joint detection of serum cysteine proteinase inhibitors C (sCys-C),urinary kidney injury molecule 1 (uKIM-1),urinary neutrophil gelatinase-associated lipocalin(uNGAL) and urinary interleukin 18 (uIL-18) for early diagnosis of acute kidney injury (AKI) in critically ill patients.Methods A total of 256 adult patients who stayed Intensive Care Unit for 24 hours in the Third People's Hospital of Liaocheng between Aug 2011 and Dec 2012 were enrolled.According to Kidney Injury Net(AKIN) work,the patients were divided into non-AKI group and AKI group (including state 1,2 and 3).The concentrations of urine NGAL,KIM-1,IL-18 and serum sCys-C were measured.The diagnosis value of four biomarkers joint detection and single detection for AKI were analyzed with the receiver operating characteristic (ROC) curve and the area under curve (AUC).Results (1) The levels of uNGAL,uKIM-1,uIL-18 and sCys-C were higher in patients with AKI than the patients with no AKI (P ＜ 0.01).(2) The area under curves of uNGAL,uKIM-1,uIL-18,sCys-C and joint detection were 0.742,0.871,0.803,0.703,0.925 respectively.(3) The sensitivity and specificity of parallel tests and serial tests of four biomarkers were 97.9％,62.8％,64.3％ and 96.2％ respectively.There were significant differences of sensitivity or specificity between single test and joint tests.Conclusions The urine NGAL,KIM-1,IL-18 and serum Cys-C are sensitive indexes for the early diagnosis of acute kidney injury.Joint detection has high value for early diagnosis of AKI.

At present, an effective detecting method for brain function impairment for the patients with the glioma is urgently needed in clinic, because it may help us understand its pathogenesis. This paper proposes a method of combining diffusion tensor tracing technology and 'small world' network. It utilizes the degree of brain function network to study complex network topological properties of the patients with the glioma in temporal lobe area. The experimental results showed that the brain networks of the patients with the glioma of different grades were destroyed compared with those of the normal persons, but the destruction degree is independent of the tumor grades. The distribution of functional connections is index truncated power-law accompanied by significant heterogeneity. Meanwhile, the stronger functional areas of information in the glioma have transferred and there exists lack of language function area and sensory function area.
Brain ; physiopathology ; Diffusion Tensor Imaging ; Glioma ; pathology ; Humans ; White Matter ; pathology

Objective To study the etiological agent of hand, foot and mouth disease ( HFMD) and the genetic characteristics of coxsackievirus A16 ( CVA16 ) strains isolated from clinical specimens of patients with HFMD in Liaocheng city in 2013.Methods Throat swab and stool specimens were collected from patients with HFMD in the disease surveillance hospitals in Liaocheng city from January to December 2013.Samples pos-itive for CVA16 strains were screened out for the isolation of virus strains with rhabdomyosarcoma ( RD) cells and Vero cells.The entire VP1 coding regions of 9 randomly selected CVA16 isolates were amplified and se-quenced.BioEdit and MEGA4 softwares were used for homology analysis.A phylogenetic tree among the 9 CVA16 isolates and 56 CVA16 representative strains of known genotypes and subgenotypes was constructed.Re-sults The results of PCR analysis showed that 747(77.73%) out of 961 specimens were positive for HFMD and among them, 74 samples (9.91%) were positive for EV71 strains, 130(17.40%) were CVA16 strains and 543(72.69%) were other enterovirus strains.The 9 CVA16 strains clustered into the B2b evolution branch of B genotype with the representative strains, sharing 97.7%to 100%homologies in nucleotide sequences and 99.3%to 100%in amino acid sequences.Conclusion Although EV71 and CVA16 strains were identified, other enteric viruses were the predominant pathogens causing HFMD in Liaocheng city in 2013.The CVA16 iso-lates belonged to B2b subgenotype.The pathogen spectrum of HFMD had already changed.It is necessary to strengthen the surveillance for EV71, CVA16 and other enteric viruses and understand their genetic characteriza-tions, which would be of great significance for the prevention and control of HFMD.

Five known compounds have been isolated from the culture of an endophytic fungus Fusarium sp., which was originated in a seagrass Spartina alterniflora. Their structures have elucidated by TLC comparision with standard and spectral methods as ergosterol (Ⅰ), ergosterol peroxide (Ⅱ) cinnamic acid (Ⅲ), para-hydroxyphenylpropionic acid (Ⅳ) and beauvericin (Ⅴ), respectively.

BACKGROUND: Chinese kidney-tonifying herb is commonly used in orthopedics department. However, individual effects of different ingredients remain poorly understood. OBJECTIVE: To observe influence of effective ingredients of Chinese kidney-tonifying drugs on bone healing and hemorheology of rats with bone injury. METHODS: Rat model of fracture of shaft of the femur was established, and treated by intragastric administration separately with extractive rhizoma drynariae total flavonoids, epimedium total flavonoids, dodder total flavonoids, naringin, quercetin and hesperidin. Blood and bone samples were harvested after 21 days to detect the extent of bone healing and hemorheology indexes. RESULTS AND CONCLUSION: The effective constituents of different Chinese kidney-tonifying drugs were beneficial to bone healing, and the effect of rhizoma drynariae total flavonoids and epimedium total flavonoids was better than the other drugs. Rhizoma drynariae total flavonoids and epimedium total flavonoids effectively inhibited blood viscosity under low shear, and reduced erythrocyte aggregation index and the aggregation and adhesion of platelet (P < 0.05), but it had no evident effects on erythrocyte deformation. This shows that the effective ingredient of the Chinese kidney-tonifying drugs can promote bone healing and exert certain effects on hemorheology. In particular, rhizoma drynariae total flavonoids exhibits the best effect.