Objective To explore the factors associated with infections in children with leukemia after chem-otherapy. Methods Clinical data of fifty-six children with leukemia, who infected after chemotherapy were reviewed with infection characteristics and some related factors. Results The infection rates were 27% in upper airway,37% in lower upper airway,12% in oral cavity,5% in gastrointestinal tract,3% in perianal abscess,7% in urinary sys-tem,5% in scpficaemia and 2% in ofitis media. Most infection happened from five to ten days after chemotherapy,and the infection rates varied with chemotherapy scheme. The persistence time of infection were (8.5±2.2) days in the children with the numbers of neutrophil below 0.5×109/L and (3.5±1.4) days in those above 0.5×109/L with significant difference(P <0.01). Conclusions After chemotherapy,the children had more chances to be infected. To be more exact, the /nfection was more common observed in respiratory tract, next in gastrointestinal tract. And the stronger the medicine used the number of heterophil granulocyte dropped much more ,the infection happened more easily.

Objective To explore the effect of transforming growth factor ?_1 (TGF-?_1) on expression of paxillin(Pax) in human kidney proximal tubular epithelial cell line (HKC cells) in different phases. Methods HKC cells cultured in vitro were divided into four groups at random. Control group(C group): HKC cells were cultured with serum free medium (FSM), and TGF-?_1-treated groups (T1, T2, T3 group): HKC cells were cultured with FSM containing 10ng/ml TGF-?_1. In the latter groups, duration of treatment varied as follows: T1 group for 24h, T2 group for 48h, T3 group for 72h. The proliferation of HKC cells induced by TGF-?_1 was assessed by MTT and the expression of Pax was determined. The gene expression of Pax was determined by reverse transcripton polymerase chain reaction (RT-PCR) and the protein expression of Pax was assessed by immunohistochemical staining and Western blot. Results TGF-?_1 could induce the proliferation of HKC cells in a time-dependent manner. In C group there was expression of Pax mRNA and protein in HKC cells. The expression of Pax mRNA and protein in HKC cells was positive in all the T groups, especially in T2 group and T3 group they were significantly increased compared with T1 group (P

Objective To investigate the expression of Paxillin (Pax) in human kidney proximal tubular epithelial cell line (HKC) induced by transforming growth factor ?1(TGF?1). Methods HKC cells cultured in vitro were divided into three groups at random: control group(C): cultured with free serum medium(FSM), TGF?1-treated groups (T1 and T2): cultured with FSM containing different concentrations of TGF?1 (T1: 5 ng/ml, T2: 10 ng/ml). After 48-hour treatment, the expression of Pax mRNA and protein was detected by reverse transcription polymerase chain reaction (RT-PCR) and immunohistochemical staining in HKC cells respectively. Results In Group C, the expression of Pax mRNA and protein in HKC cells was elementary. However, in T1 and T2 groups , the expression of Pax mRNA and protein in HKC cells was greatly increased, especially in T2 group which was more significantly increased than T1 group (P

Objective To explore the effect of heroin dependence on the expression and the function of glucagon in islet A cells of rats.Methods The changes of numerical density on area of A cells and level of plasma glucagon of heroin-dependent rats were investigated by means of the immunohistochemical SABC method,image analysis and radioimmunoassay(RIA).Results As compared with SCG and NCG,it was observed that the number of Glu-IR positive cells increased and the intensity of immunohistochemical staining enhanced in the heroin-dependent groups.The result of image analysis showed that the numerical density on area of A cell apparently increased in the 38-day heroin-dependent group(P

Objective To explore the cognition processes of language in stroke patients by characterizing the differences between the event-related potentials (ERPs) N400 evoked bypicture-word andsentence-wordparadigms.Methods Twenty patients with a single brain lesion resulting from a first episode of stroke were tested along with 20 normal controls.Their N400 ERPs were tested using pictures and sentences as activating stimuli and phrases composed of nouns and verbs as the target stimuli.The N400 potentials were recorded from electrodes located at Fz,Pz,T3 and T4 positions of the International 10-20 system.The N400 latencies and amplitudes and the behavioral responses of the experimental and control groups were compared.Results The latencies were longer and the amplitudes were lower in response to sentence activation than to picture activation.The differences in terms of amplitude were the greatest with N400 recorded from Pz.The responses to the target stimuli were not significantly different with regard to the types of stimuli and recording location.The average response time was longer and the error rate was higher in response to sentence activation than to picture activation.Conclusion Multiple accesses,activating stimuli and integrating processes are involved in language cognition.The brain is more sensitive and accurate in response to picture stimuli in language cognition.The response to sentence stimuli is slower,and the error rate is higher.This suggests that it is better to usc varied prime stimuli in teaching children languages.

Objective　To study the mRNA expression of MCT1 and MCT2 genes in human hepatocellular carcinoma (HCC) and paracarcinoma liver tissue (PCLT). Methods　The semi-quantitative analysis of MCT1 and MCT2 genes mRNA expression in human HCC and PCLT was conducted by RT-PCR method and electrophoresis band opacity density (OD) comparison analysis method in 25 patients with HCC. Results　The mRNA expression of MCT1 was significantly higher than MCT2 in HCC and PCLT, in HCC the mRNA expression of MCT1 and MCT2 genes were significant higher than that in PCLT. Conclusions　The high expression of mRNA of MCT1 and MCT2 genes in HCC indicates that these genes may take a significant role on lactate and other monocarboxylate transmembrane transportation and on pH regulation in tumor cells.

Objective:To investigate the clinical effect of Pijiling Liniment for seborrheic dermatosis on 327 cases. Methods:327 patients with seborrheic dermatosis were treated with Pijiling Liniment. The clinical effects were compared with that of the control group(Co.Resorcinol Ointment, 76 cases). Results:The total effective rate and curative rate of the treatment group for seborrheic dermatitis were 93.5% and 33.3%, respectively. The effective rate for acne was 80.6% and for dermatomycosis microsporina was 7.5%. The total effective rate and curative rate of the control group were 92.1% and 2.6 %, respectively. Conclusions:There is a significant difference in the curative rate between two groups( P 0.05) through x 2 test.

Objective To study the mRNA expression of MCT1 and MCT2 genes in human hepatocellular carcinoma (HCC) and paracarcinoma liver tissue (PCLT). Methods The semi-quantitative analysis of MCT1 and MCT2 genes mRNA expression in human HCC and PCLT was conducted by RT-PCR method and electrophoresis band opacity density (OD) comparison analysis method in 25 patients with HCC. Results The mRNA expression of MCT1 was significantly higher than MCT2 in HCC and PCLT, in HCC the mRNA expression of MCT1 and MCT2 genes were significant higher than that in PCLT. Conclusions The high expression of mRNA of MCT1 and MCT2 genes in HCC indicates that these genes may take a significant role on lactate and other monocarboxylate transmembrane transportation and on pH regulation in tumor cells.

Objective To investigate the effect of Guizhi Fuling pills on levels of serum MAPK, ERK and VEGF in patients with endometriosis. Methods 60 patients with endometriosis were selected and according to the random control table were divided into the experiment group and the control group, 30 cases each.The control group were treated with conventional acetate goserelin sustained-release implantation agent subcutaneous injection, the experiment group were treated by Guizhi Fuling pill treatment.After treatment, the clinical efficacy, serum MAPK, ERK-5, VEGF, ERK, T-cad and VE-cad levels of the patients were compared.Results Compared with the control group, the clinical total effective rate was higher in the experiment group (P<0.05);MAPK and ERK-5 levels in serum were lower (P<0.05), ERK level in serum was lower(P<0.05);T-cad and VE-cad levels in serum were lower(P<0.05);VEGF level in serum was lower(P<0.05).Conclusion Guizhi Fuling pill can block the cell signal transduction pathway through inhibition of MEK and ERK activity, thereby inhibit abnormal endometrial proliferation and cell division cycle, can effectively inhibit the proliferation and differentiation of the tumor.