ObjectiveTo explore the possible mechanism that Gadd45a and Egr-1together participate in the DNA damage repair,by analyzing the influence of hepatic ischemia-reperfusion injury (IRI) on the rnRNA and protein expression of hepatic cell cycle-related genes.Method Methods Forty-two SD rats were divided into normal control group,ischemia 30 min group and reperfusion 30 min,1h,2 h,3 h and 24 h groups.The hepatic specimens of rats at the corresponding time points after success of modeling were obtained. Chip experiment was used to screen out the key genes Gadd45a,Egr-1and GAPDH for target genes.We used Northern blot and RT-PCR to confirm the chip's results. The expression of related proteins was detected by using immunofluorescence and immunohistochemistry.Results Northern blot detection results showed that the RT-PCR products and the target genes for testing were concordant.The expression spectral chip signal and RT-PCR detection revealed that the expression of target genes had a 4-fold increase at early reperfusion period (1h) (up-regulation of Egr-1,Gadd45a and HSP70-1a by 9.39,8.28 and10.8 respectively.At the later stage of reperfusion (24 h),the expression of Egr-1,Gadd45a and Hspala was reduced to the normal levels, and the chip screening results were consistent with the RT-PCR test results.Fluorescence immunohistochemistry demonstrated that in the reperfusion1h and 2 h groups,the expression of Egr-1in nuclei of liver cells was positive. Immunohistochemistry indicated that the Gadd45 expression in the nucleus and cytoplasm was gradually increased with increasing reperfusion time.ConclusionGadd45a and Egr-1are the key genes of the nuclear factor (NF)-kB regulatory pathways,and involved in the regulation of cell cycle arrest at G2/M phase and repair of damaged DNA in rat hepatic IRI.

Eosinophils ; immunology ; Food Hypersensitivity ; etiology ; Gastritis ; etiology ; Humans ; Infant ; Male ; Milk Hypersensitivity ; complications ; immunology ; Milk Proteins ; immunology

Objective:To enhance the functional safety of medical electrical equipment and reduce the risk to patient when using the medical electrical equipment.Methods: Theory and rationale introduction of functional safety and provide application cases.Results: Introduce the definition and application scope of functional safety standards IEC 61508, the determination of safety integrity level of functional safety in the Medical Electrical equipment, and the design structure and development, meanwhile show some application examples.Conclusion: Provide suggestions for the manufactures for safety design that introduce functional safety standards IEC 61508 to the development process of Medical Electrical equipment will help enhance the safety level of Medical Electrical equipment and reduce the unacceptable risk’s probability to patient.

The serum sialic acid level and its relation to stroke in syndrome X was observed in 21 syndrome X patients with history of stroke,21 syndrome X patients without history of stroke, 21 simple NIDDM patients and 21 healthy subjects matched for age, sex, duration of diabetes and HBAlc level.The results showed that the serum sialic acid level was significantly higher in all NIDDM patients than in normal subjects(P

OBJECTIVE:To discuss the role of licensed pharmacists in retail drug stores.METHODS:The current situation of licensed pharmacists’role playing in retail drug stores and the influcing factors were analysed.RESULTS&CONCLU?SION:The licensed pharmacist system remains to be perfect in China,we suggust that the licensed pharmacists'role should be further strengthed from two links,i.e.“access”and“employment”.

Hepatocellular carcinoma is one of the most common malignant tumors.With the concealed characteristics and non-specific clinical expressions,its presence can be frequently missed,allowing progression to advanced stages where prognosis is poor.Therefore,early diagnosis is essential to improve the survival rate of patients with hepatocellular carcinoma.Recent developments in imaging technology and molecular biology are making strides in identifying and finding biomarkers of hepatocellular carcinoma,leading to earlier diagnosis.This article describes the latest developments,in combination with previous diagnostic methods to make a comprehensive examination of strategies for early diagnosis of hepatocellular carcinoma.

This article analyzes the characteristics of lymph node metastasis in proximal advanced gastric cancer,in order to guide the extent of stomach resection (proximal or total gastrectomy) and the resection of spleen or splenic preservation. The metastasis of lymph node in proximal advanced gastric cancer has certain characteristics, which can provide a significant guidance for lymphadenectomy. Total gastrectomy plus splenectomy is a feasible radical surgery for proximal advanced gastric cancer, because of the requirement of lymphadenectomy.

Objective To observe the the therapcutic efficacy of differential antihypertensive treatments on the elderly acute cerebral hemorrhage with different amounts of bleeding. Methods 86 elderly patients with acute cerebral hemorrhage combined by hypertension were randomly divided into two groups:active antihypertensive group and regular antihypertensive group (n=43 for each group),among which 62 cases aged (68.9±5.3) years were in hemorrhage of small amount (volume ＜30 ml),24 cases aged (70.8 ± 5.7) years in large amount hemorrhage (volume ≥30 ml).The patients in active antihypertcnsive group received intravenous antihypertensive drugs within 1 hour of treatment in the following 7 d to reach systolic pressure 140-160 mm Hg.In contrast,in the control group the patients' systolic pressure reached 180-200 mm Hg at early stage.The hematoma volume was measured by CT before treatment and at 3 d and 7 d after treatment.NIH stroke scale (NIHSS)was used before treatment and 7 d and 28 d after treatment Results In the patients with small amount of bleeding,NIHSS scores and the total efficacy rate at 28 d after treatment and hematoma size at 3 d after treatment were better in active antihypertensive group than in regular antihypertensive group [(4.8±2.7) scores,86.67％ aud (2.4±0.6) ml vs.(7.6±3.9) scores,53.13％ and (8.1±3.1) ml,all P＜0.01]. However,for the patients with large amount of bleeding,there were no statistical differences in the above indexes between the two differential strategies (all P＞0.05).Conclusions Active antihypertensive therapy may inhibit early hematoma volume,improve prognosis and enhance clinical efficacy for the patients with small bleeding,but no clinical significance for the patients with large amount of bleeding.

Small-cell lung cancer (SCLG) relapses in the majority of patients,even though most patients respond to first-line therapy.Subsequent therapy can provide significant palliation and prolongation of survival for many patients. At present,topotecan is considered the standard second-line chemotherapy.Recently,amrubicin has also shown more favorable antitumor activity,and is the most promising at present.Unfortunately,targeted agents have failed to demonstrate effectiveness for SCLC.

G3BP (Ras-GTPase-activating protein SH3 domain binding protein), a protein which binds to RasGAP SH3 domain, belongs to RNA-binding protein family, implicating in the downstream of Ras signaling. G3BP harbors the activities of endoribonuclease and DNA helicase, and can induce stress granules formation. G3BP plays a general role in the signal pathways of cell proliferation, differentiation, apoptosis and RNA metabolism. It has been shown to be over-expressed in a number of human malignancies and has a close relationship with tumor invasion and metastasis. Given that it has been implicated in several pathways that are known to be involved in cancer biology, G3BP may provide a new target for cancer therapy.