Cardiopulmonary arrest is one of the most critical situations,posing a serious threat to life.With the development of medical technology, the rate of return of spontaneous circulation after cardiac arrest has been improved.However, many children suffer from multiple organ dysfunction because of the long hypoxia time from cardioplumonary arrest, so the rate of long-term survival is relatively low and the long-term outcome is still not satisfactory.Therefore, how to make cardiopulmonary resuscitation more effective is the focus of current research.This article reviews the related factors that affect the outcome of resuscitation, providing references for the treatment of cardiopulmonary arrest in children.

Background One of the important machanisms of all trans retinoic acid (ATRA) is to regulate the expression of connexin (Cx) gene.ATRA inhibits the proliferation and differentiation of retinoblastoma (RB) cells,which is related to Cx43.However,the control site of ATRA and its effect on RB tumor in vivo have not been identified.Objective This study was to investigate the effect of ATRA on Cx43 expression in RB cells and its approach mechanisms.Methods ATRA solution of 1 × 10 2 mol/L was prepared with ethanol and formulated into 1×10 5,1×10-6and 1 × 10 7 mol/L of solution with culture medium further.Human RB cell line (HXO-RB44) was cultured and treated with different concentrations of ATRA for 2,4 and 6 days,respectively.The expressions of Cx43 protein and mRNA in RB cells were detected by Western blot and reverse transcription PCR (RT-PCR),respectively.RB models were established by injecting HXO-RB44 cell suspension into anterior chamber in the right eyes of 15 athymic mice.Eleven successful models were divided into the blank control group,negative control group and 1 × 10-5 mol/L ATRA group,and 0.5％ normal saline solution with athymic or 1 ×10-5 mol/L ATRA solution was injected into the anterior chamber in the negative control group and 1 × 10-5 mol/L ATRA group in the 3-day interval for 3 weeks.The model eyes were examined under the slit lamp microscope.The eyeballs were extracted at the end of the experiment for hematoxylin and eosin staining.Results Western blot assay showed that the absorbance values of Cx43 protein (ACx43/AGAPDH) were increased gradually as time lapse of ATRA treatment among the groups (Ftime =71.31,P =0.00; Fgroup =7.66,P =0.00).The expressions of Cx43 protein were significantly higher in the 1 × 10 5 mol/L ATRA group after 2 days,1 × 10-6 mol/L ATRA group after 4 days,1 × 10-7 mol/L ATRA group after 6 days than those in the blank control group at various time points (t =3.34,P＜0.01 ;t =2.33,P＜0.05;t =3.12,P＜ 0.01).RT-PCR showed that the absorbance values of Cx43 mRNA (ACx43mRXA/Aβ-actin) were significantly enhanced as the prolong of treatment time of ATRT among the groups (Ftime =90.90,P =0.00 ; Fgroup =6.86,P =0.00).The expressions of Cx43 mRNA were significantly higher in the 1 × 10-5 mol/L ATRA group after 2 days,1 × 10 6 mol/L ATRA group and 1 ×10-7 mol/L ATRA group after 4 days than those in the blank control group at various time points (t=3.57,P＜0.01 ;t=6.31,P＜0.01 ;t=2.22,P＜0.05).RB models were successfully created in 11 eyes on the 6-9 days following the intrachamber injection of RB cell suspension.The RB cells were filled with chamber in the blank control group 20 days after injection,and RB only occupied half of the anterior chamber in the 1 × 10-5 mol/L ATRA group.Histopathological examination exhibited that the RB cells were seen in the anterior and posterior chamber as well as vitreous in the blank control group,however,the cells were only found in the anterior chamber in the 1 × 10 5 mol/L ATRA group.Conclusions ATRA can inhibit the growth of RB in vitro and in vivo by inducing the expression of Cx43 gene in transcription process.

It was found that there was a significant increase of the number of circulating leucocytes 2h after a subcutaneous injcetion of isoprenaline and severe myocardial necrosis occurred after consecutive injections for 3 d.Cytoxan-induced depletion of leucocytes resulted in an obvious decrease of the percentage of myocardial necrosis.In the control.the neutrophilic phagocytosis was enhanced and their release of acid phosphatase elevated greatly,which indicates that the neutrophils are in an activated state.After the.neutrophils were inhibited with dexamethasone or indomethacint significant reduction of the contents of prostaglandin E2 and malondialdehyde and an increase of superoxide dismutase activty in the myocardium were observed and consequently myocardial necrosis was greatly alleviated.Our findings suggest that neutrophils might play an important role in the pathogenesis of myocardial infarction through the release of lysosomal enzymes and the production of oxygen-derived free radicals and certain metabolites of arachidonic acid,and proper regulation of the neutrophilic functions could exert prophylactic effects on myocardial infarction.This might be a promising direction to look for more effective drugs to treat myocardial infarction.

Aim Curcumol and Zedoary Turmeric Oil (ZTO) were prepared to liposome, which were used to study the anti-hepatoma effect, and its mechanism that was expected to provide theoretical support for the clinic anticarcinomal use of Zedoray Rhizome Abstracts.Methods Curcumol and ZTO were prepared to liposome by mechanical diffusion and ultrasonic techniques.Proliferation of HepG2 cell in vitro was observed with curcumol and ZTO by MTT assay. Apoptosis of cells was observed by staining with Hoechst 33258/PI and laser confocal scanning microscopy (LCSM). Expression of COX-2 mRNA and VEGF mRNA of HepG2 cell was investigated by RT-PCR.Results Envelopment ratios of curcumol liposome and ZTO liposome were 86.2% and 74.5%,respectively.Curcumol and ZTO inhibited proliferation of HepG2 cell by MTT assay.Compared with control group, Curcumol and ZTO increased the apoptosis rate of HepG2 cell significantly (P

Objective To establish a method for the content determination of naringin in Bogu Pill by HPLC. Methods At room temperature and by using ultrasonic extraction, HPLC was performed to determine naringin content on ODS chromatographic column.The mobile phase consisted of a mixture of acetonitrile and 8 % acetic acid (15 ∶ 85)and detection wavelength was at 283 nm.Results The linearity of naringin was in the range of 5.2 ? g / mL～ 31.2 ? g / mL (r=0.9999) and the average recovery was 98.72 % , RSD=1.55 % . Conclusion This method was simple, sensitive and accurate, and can be used for the quality control of Bogu Pill.

This paper presents the ultrastructrual changes of male rats gonadotrophs at 7, 15, 30, 50 days after cadmium chloride (Cd) injection (2mg/kg). The differences of morphometric parameters of gonadotrophs and plasma value of FSH were revealed by statistics.The results showed that no injured alterations were found in gonadotrophs but appeared castration like features. These changes feature were most prominent after 15 days and then recovered to normal gradually. The main alterations of gonadotrophs were dilatation, and proliferation and decrease in the specific surface of RER as well as there were low density materials in the dilated cisterna. The numerical and volume density of large and small secretion granules were decreased greatly in all of the treatment groups. The variance of diameter of the large and small secretion granules were not conspicuous and the differences of volume and numerical density of the mitochondria among the control and treatment groups were also no significance. The hypertrophy of Golgi complex of the gonadotrophs were very obvious and the number of the gonadotrophs were increased in the Cd treated rats. The plasma value of FSH measurement indicated that the FSH level increased after 7days and the highest value appeared after 15 days. However, it did not return to normal after 50 days. These results suggested that gonadotrophs were not susceptible to Cd. The hypertraphy, hyperplasia and increase in synthesis and secretion of the gonadotrophs resulted from feedback by the effect of Cd induced injury on testes.

Objective:To summarize the application of hospital electronic medical record system and implementation experience, for the scientific and reasonable construction of digital hospital provides design scheme. Methods: The electronic medical record to the patient as the center including the establishment of hospital medical records, doctor's orders, all kinds of inspection, inspection reports and other information. Results: The uniform ultimate implementation of electronic health record standard, electronic data from medical records and medical information barrier-free exchange, realize the integration and sharing of electronic medical records information inside the hospital. Conclusion: The electronic medical record system to improve the clinical efficiency in hospital application, provide auxiliary functions for clinical decision making.

Objective To investigate the relationship between the characteristics of promoter methylation of thyroid stimulating hormone receptor(TSHR) gene in papillary thyroid Carcinomas(PTC) and the clinical manifestation of PTC. Methods The methylation status of TSHR gene was detected by methylation specific PCR technique(MSP).Results (1) The methylation rate of TSHR gene in PTC tissues was 64.7%(22/34),while the methylation rate of TSHR gene in adjacent thyroid tissues(ATT) was 26.5%(9/34),and the rate of methylation of TSHR promoter in PTC was significantly higher than of ATT(P

Objective To investigate the knowledge,attitude and related factors associated with HIV/AIDS among female prisoners in Shaanxi province.Method A cross-sectional survey with questionnaire was conducted in 837 female prisoners.Results Of the studied female prisoners 94% had heard of HIV/AIDS.The rate of correct answer on basic knowledge about AIDS was 19.8%-87.3%.The rate of correct answer on the transmission route was 11.6%-87.6%.The rate of correct answer on non-transmission route was 23.4%-48.6%.The rate of correct answer on prevention was 36.7%-57.5%.Of them 46.6%-55.7% were afraid of AIDS,and 26.6%-90.0% had prdjudice and stigma to HIV/AIDS and PLWHA(people living with HIV/AIDS).The factors affecting HIV/AIDS related knowledge included marriage status,career,education background and number of family members.The factors affecting attitude included age and education background.Conclusion The studied female prisoners have wide but superficial knowledge about HIV/AIDS and have expressed over fear for HIV/AIDS.They also cannot tolerate AIDS patients.

The levels of cyclic AMP and prostaglandin E (PGE) in the brain are raised in many kinds of fever induced by various pyrogens, we also know when the ratio of Na~+/Ca~(++) is changed in the brain, the body temperature changes. So it is suggested that cAMP, PGE and the ratio of Na~+/Ca~(++) are major central mediums in febril response. It is not clear what relationship is among these three factors and what are their roles respectively in the fever mechanism? It must be very helpful for the development of fever study if we can have them correctly answered. In this paper, we change the Na~+/Ca~(++) ratio by intraventricular perfusion with EGTA or CaCl_2, and observed the temperature response, levels of cAMP and PGE_2 in c.s.f. It is found that there was a positive correlation between cAMP and the body temperature(r=0.9913, P0.05). EGTA can raise body temperature. But CaCl_2 pretreatmentd could lower the EGTA fever.