Glucocorticoid(GC) /glucocorticoid receptor(GR) inhibits cell proliferation and protects cells from apoptosis induced by serum deprivation,hypoxia,irradiation or chemotherapy drugs in many cell types,thereby GC/GR can maintain cell number homeostasis,which is an important aspect of homeostasis regulation of GC/GR in higher organisms.This article reviews antiproliferative and antiapoptotic effects of GC/GR on cell and their molecular mechanism,mainly focusing on the molecular events and target genes downstream of GC/GR.

Objective To understand the current status of intestinal helminth infections in Dafeng City. Methods The resi?dents in 5 villages of Dafeng City were investigated and their stool samples were detected for the eggs of helminth with Kato?Katz technique and Enterobius vermicularis was detected by the cellophane anal swab method. Results The total infection rates of intestinal helminth were 5.77% 5.51% 4.60% 4.18% 3.41% and 1.38% from 2005 to 2010 respectively. The trend of total infection rates declined year by year. The infection rates in the 20?30 age?group and 60?80 age?group were higher than those in other age?groups. The infection rates of the male and female were 5.63 359/6 375 and 2.42 144/5 949 re?spectively and there was a significant difference χ2=74.81 P=0.00 . The infection rate 11.70% in the northern areas of Dafeng City was higher than that in other places and the trend of the infection rates decreased from the eastern and northern to the western and southern. The infection rate of E. vermicularis was 1.75%in children in 2010. Conclusions The infection rate of intestinal helminth is low but E. vermicularis infection is relatively general in the children in Dafeng City. Therefore the pre?vention and treatment still need to be strengthened.

The effects of androgen and glucocorticoid on the proliferation of SC-3 mouse breast carcinoma cells and their mechanisms were investigated in a serum-free culture. Both physiological concentrations of testosterone ( T) and pharmacological concentrations of dexamethasone ( Dex) significantly increased the cell proliferation. The growth-stimulatory effects of two hormones were mediated through their own receptors.SC-3 cells stimulated by T and Dex were also found to secrete fibroblast growth factor (FGF) like factor into conditioned medium (CM) . The addition of anti-FGF antibody in the medium inhibited T, Dex and bFGF-induced proliferation of SC-3 cells. Furthermore, the presence of FGF receptors in SC-3 cells were demonstrated. These results indicated that androgen and glucocorticoid-in-duced enhancement of SC-3 cell growth is mediated through an induction of FGF-like growth factor which acts on SC-3 cells as an autocrine growth factor.

AIM: To study the protection effect of baicalin on isoproterenol (ISO) induced myocardial ischemia in rats and its mechanisms. METHODS: Forty-five Sprague-Dawley rats were randomly divided into 3 groups. The rats in control group (n=15) received no treatment. The rats in ISO group (n=15) received two times of subcutaneous injection of ISO (20 mg?kg~ -1), which was separated by a 24 hours-interval. The rats in baicalin group (n=15) received ISO as described above and received baicalin 50 mg?kg~ -1 ip. simultaneously. Two days later the hemodynamic measurement was performed and the serum levels of LDH, CK and TNF-? were detected. The expression of p38mapk in myocardium was detected by immunohistochemical technique. RESULTS: The heart function of the group treated with baicalin was improved significantly compared with that of control group. The levels of LDH, CK and TNF-? in baicalin group decreased significantly compared with those in control group and the expression of p38mapk in myocardium also decreased markedly. CONCLUSION: Baicalin has protection effect on isoproterenol induced myocardial ischemia in rats, and the effect maybe due to the decrease of TNF-? induced by reducing the p38mapk expression.

Peroxisome proliferators-activated receptor-gamma(PPAR?),one of members of the nuclear hormone receptor superfamily of ligand-activated transcription factors,may affect the ocurrence and development of atherosclerosis(AS) through effective modulate lipocyte differentiation,improve glucose and lipoprotein decompensation and control inflammation reaction and so on.This review will focus on the recently development that relation on PPAR? and AS.

Objective To explore the entrapment to the deep branch of the ulnar nerve at the wrist,to assist the surgeon in diagnosis and treatment of Guyon canal syndrome.Methods Twenty fresh upper limbs were dissected on loupe(?5),to record the relationship between the ulnar nerve and the hypothenar muscles,the course of the ulnar nerve at the wrist.Results The deep branchs of the ulnar nerve go through an intermuscular space after runing out of the Guyon canal.The intermuscular space consisits of the superficial and deep head of the opponens digiti minimi and the hook of the hamate,which has one entrance and one exit.We named the intermuscular space as the hiatus of opponens digiti minimi,and named the proximal edge of the superficial head of the opponens digiti minimi as the fascial arch of the opponens digiti minimi.Conclusion We found that the fascial arch of the opponens digiti minimi can compress the deep branch of the ulnar nerve causing motor deficit of the intrinsic muscles of hands.

Objective To get a better understanding of the characteristic MRI appearances of cerebral MS lesions.Methods 61 patients with clinically diagnosed multiple sclerosis were examined with SE sequences,using 0.5T super-conducting scanner.The MRI features of MS were analyzed.Results All of the patients in 61 cases were found MS lesions in MRI.The lesions in cerebral,brainstem,and cerebellum were clearly visualized,but in optic nerves were not so good.The MS foci appeared low or middle signal intensity in T 1WI and high signal intensity in T 2WI.It was playing an important role in the diagnosis of the MS that the paraventricular lesions were perpendicular to the lateral ventricles and there were MRI abnormal signals in corpus callosum with shrinking. Conclusion MRI can show the characteristic appearances of MS lesions,demonstrate many more lesions that not visible on CT scan,provide informations about the number,size,location and extent of the lesions therefore MRI is the first method of choice in the diagnosis of MS.

Purpose:To investigate whether transforming growth factor ?1 (TGF ?1) pathway is involved in the mechanism of dexamethasone (Dex) mediated proliferation inhibition in ovarian cancer cell line HO 8910.Methods:To analyse cell proliferation and cell cycle distribution by cell counts and flow cytometric analysis, respectively ; to determine the expression levels of TGF ?1 and its two receptors, T?R Ⅰ and T?R Ⅱ , by quantative RT PCR, ELISA and(or) immunocytochemistry methods.Results:Dex induced a G 0 /G 1 cell cycle arrest in HO 8910 cells, and it up regulated T?R Ⅱ expression in a concentration dependent manner.The level of T?R Ⅱ mRNA was the highest after treatment with Dex for 8 hours, with 1.4 fold more than that of control at concentration of 10 -7 mol/L ( P

Nosocomial infection of Pseudomonas aeruginosa is a dilemma in clinic,especially at ICU with high rate of antibiotic resistance,and lead to ventilator associated pneumonia,bloodstream infections, etc.There are difficulties in the treatment,lengthening of ICU stay,high mortality and increased treatment costs.Positive prevention,early diagnosis,reasonable antiboitics are the key to the benign prognosis of Pseud-omonas aeruginosa.

AIM: To investigate the effects of synthetical glucocorticoid dexamethasone(Dex) on the activation of two members of mitogen-activated protein kinase (MAPK) family, extracellular signal-regulated protein kinase1/2(ERK1/2 ) and p38 MAPK (p38) in human ovarian cancer cell line HO-8910. METHODS: The activation of ERK1/2 and p38 was determined by Western blot. RESULTS: Inhibition of activation of ERK1 and ERK2 by 10 -7 mol/L Dex occurred at 5 min, with maximum up to 41% and 54% respectively at 30 min ( P