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 immune-gold-silver stain and image analysis methods were used to check up estrodial receptor (ER) in rat heart at myocardial infarction (MI) conditions.Animals were divided randomly into four groups: one serves as normal control, another as sham-operation, the third was treated as myocardial infarction and the last one estrogen (E_2) was injected after MI. The results showed that all the parts of the heart have ER,but the distributions are not equal in atrium and ventricle, the former is less than that of the latter (0.1687?0.005, 0.2072?0.006, P

Traditional Chinese medicine(TCM),a comprehensive medicinal system,is characterized by holistic theory that emphasizes the regulation of the integrity of the human body and the interactions between human individuals and their environments. The diagnostic and therapeutic methods of TCM are based on the differentiation of syndrome(Zheng in Chinese)and the use of herbal formula(Fang-Ji in Chinese). There is an urgent need to develop scientific research methods in accordance with the above characteristics for TCM modernization. In the era of big data and with the rapid progress in systems biology,polypharmacology and bioinformatics,network pharmacology has emerged as a promising drug discovery approach that takes the same view as the theory of TCM. This methodology has explored correlations between drugs and complex diseases from the perspective of the holistic theory and has highlighted the paradigm shift from″one drug,one target″to″network target″. Thus,it is an original idea to combine network pharmacology with the modern research of TCM. This paper briefly analyzed and discussed the progress and major scientific challenges in network pharmacology applied to TCM diagnosis and treatment. To promote the development of TCM network pharmacology , several suggestions were also raised.

Elastic stable intramedullary nailing (ESIN) is a well-accepted fixation method of long bone fractures in children.The advantages of ESIN include primary bone union with avoidance of growth plate injury and minimum invasive surgery.The good results of ESIN are obtained when surgeons have a good knowledge of the principle of the correction of the fracture and its stability, especially in the understanding of the unique pathophysiology characteristics of pediatric fractures.This review discussed the biomechanical mechanisms of ESIN, and the principles,indications and contraindications of ESIN in the treatment of pediatric long bone fractures.The article also comprehensively introduced the application of ESIN in femur,tibia,fibula,humerus, ulna, radius,clavicle and metacarpal bone fractures.The technique details of nailing, preoperative planning, positioning of the patient, sizing of the nail, entry points for the nail, reduction maneuvers for safe passage of nails through the fracture site, and postoperative management were also introduced in this review.

Objective:To provide some suggestions for improving the pharmaceutical advertisement supervision system and standardizing the pharmaceutical advertisement market. Methods: Literature reviews, statistical analysis and interviews were adopted to study the status quo and difficulties of pharmaceutical advertisement supervision and pharmaceutical advertisement trends. Results:The top-level design of pharmaceutical advertisements supervision sys-tem has two defects:the separation between approval and penalty and the obstacles to cooperation at all levels of the drug administration. The worsening status quo of illegal drug advertising has elicited concern from scholars and regu-lators. However, there are still some difficulties in the supervision of drug advertisers, advertising agents, and pub-lishers. Conclusion:It is suggested that the drug advertising regulation system should be perfected by strengthening information supervision, establishing a coordination mechanism and consolidating self-discipline consciousness. Addi-tionally, laws and regulations should be promptly revised as an essential way to improve the effects of supervision.

Thymus derived CD+4; CD+25 regulatory T cells (Treg) are thought to be specific T cells that play an important role in controlling autoimmunity, preventing transplant rejection, restraining anti-infectious immune response, suppressing allogeneic immune respons. More recently, these cells are reported to have the ability of suppressing antitumor immune response. Foxp3 are the most specific protein of Treg. In this review, we will discuss the expression of CD+4 CD+25 Treg in patients with hematological malignancies and its implication for immunotherapy.

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.