ve To investigate the effects of different doses of diltiazem alone or combination with isoflurane on stunned isolated rat heart. Methods Adult male Wistar rats weighing 325-350g were anesthetized with intraabdominal pentobarbital sodium 60mg?kg-1. Heparin 200IU was injected into femoral vein. Chest was then opened and heart was removed and connected to Langendorff preparation. The isolated rat heart was perfused at 100cm H2O with Krebs-Hensleit buffer(KHB) balanced with 95%O2 and 5%CO2 at 37℃ and electrically paced at 300 bpm. Global myocardial ischemia was produced by suspension of perfusion. The isolated rat heart underwent 20 min ischemia followed by 30min reperfusion. 40 rat hearts were randomly allocated to one of 5 groups of eight each, group Ⅰ received no treatment and served as control; group Ⅱ: the isolated heart was perfused with 0.1/?mol?L-1 diltiazem for 10 min before the onset of ischemia; group Ⅲ: with 0.5?mol?L-1 diltiazem; group Ⅳ: with 0. 1?mol?L-1 diltiazem + 1.5MAC isoflurane; group Ⅴ: with 0.5?mol?L-1 diltiazem + 1.5MAC isoflurane. Left ventricle developed pressure(DP) was measured from a fluid-filled Latex balloon placed in left ventricle. The volume of the fluid in the balloon was regulated to maintain the left ventricle end-diastolic pressure at 5-8 mm Hg. Peak systolic pressure(PSP), end-diastolic pressure(EDP) and developed pressure(DP) were measured after the isolated heart was stabilized for 10min (baseline value) and 5, 10, 15, 20, 25, 30min after reperfusion. Maximum intraventricular pressure was measured during ischemia when the isolated heart was not paced and at a stand still. Results There was no significant difference in DP, EDP, + dp/dtmax and - dp/dtmin after the isolated hearts were stabilized for 10min, before ischemia among the five groups. Perfusion with 0.1?mol?L-1 diltiazem did not affect DP significantly but 0.5?mol?L-1 diltiazem significantly decreased DP (P

The system construction and work flow of automatic oral drug dispensing system(AODDS) in our hospital are introduced,its' advantages and disadvantages of the application are analyzed.After applying AODDS,drug dispensing speed and accuracy are significantly increased.AODDS is conducive to promote hospital pharmaceutical care and pharmacy quality administration.The application of AODDS in our hospital may be referred for other hospitals to select AODDS.

Objective To investigate the abnormal expressions of immunoglobulin light chains kappa(Igκ)and Lambda(Igλ)in malignant tumors.Methods The concentrations of the Igκ and Igλ in serum were measured by rat nephelometry in 60 cases of malignant tumors and 15 cases of healthy people.Results The liver tumor patients had a higher concentration of Igκ and Igλ in serum than normal people(P＜0.01).There wre not significant differences between the levels of Igκ,Igλ and κ/λ ratio in the stomach tumor,lung tumor,proctologic/colonic tumor,mammary tumor,oesophagus tumor and normal peoples(P＞0.05).Conclusion The measurment of Igκ,Igλ and κ/λ ratio in serum would be helpful for the diagnosis of the liver tumor.By continous observation with Igκ,Igλ and κ/λratio in serum could predict the development of disease.

Objective To investignte the effects of ambroxol on lung injury in children undergoing cardiac surgery with cardiopulmonary bypass (CPB).Methods Thirty-six ASA Ⅱ or Ⅲ children of both sexes aged≤8 yr,weighing≤25 kg undergoing repair of ventricular septal defect (VSD) under CPB were randomly divided into 3 groups (n=12 each):I control group (C);II low dose ambroxol group (2.25 mg/kg) (A,) and III moderate dose ambroxol group (4.50 mg/kg) (A2).Ambrexol was diluted with normal saline 10 ml and infused slowly after skin incision in group A1 and A2.In group C equal volume of normal saline(10 ml) was infused instead of ambroxol.Blood samples were taken from radial artery before skin incision,at 20 rain of CPB,20 rain after aortic unclamping,2 h and 6 h after temtination of CPB and 12 h after operation for determination of plasma MDA concentration and SOD activity and blood gas analysis.Respiratory index (RI) and pulmonary compliance (CL)were calculated.Results The plasma MDA concentration and RI were significantly lower while plasma SOD activity was significantly higher in group A2 than in group C and A1·CL was significantly higher in group A2 than in group C.Conclusion Ambroxol 4.50 mg/kg can attenuate lung injury in children undergoing cardiac surgery with CPB by decreasing lipid peroxidation.

Chronic Disease ; Forkhead Transcription Factors ; Hepatitis, Viral, Human ; Humans

Objective To compare the effect of acupuncture and swallowing training on dysphagia in recove-ring stroke patients. Methods One hundred and thirty-two subacute stroke inpatients,73 males and 59 females,with a mean age of(67.9±9.0)years,26 cerebral hemorrhage patients and 106 cerebral infarct patients,participa-ted in the study.The patients were divided into a swallowing training group(ST,n=53)treated with thermal-tactile stimulation,deglutition exercises and food swallowing training;an acupuncture group(AP,n=48) treated with acu-puncture at the Fengchi(GB20),Lianquan(RN23),Bailao(EX-HN15),Jinjing(EX-HN12) and Yuye (EX-HN13)acupoints;and a control group(CG,n=31).The interventions were administered once a day,6 times a week.Before and after treatment,the patients were evaluated with a water-swallowing test and the"Any Two"test,and the arterial oxygen saturation(SpO_2) was monitored by pulse oximetry. Results The ST and AP groups showed significant improvement in water-swallowing and on the"Any Two"test after the treatment regimen,and were significantly better than the control group.There was no significant difference between the ST and AP groups.The average decrease in SpO_2 during water-swallowing was under 2%.After treatment,the baseline SpO_2 and post-water-swallowing SpO_2 of the ST group were significantly higher than those of the control group.The post-water-swallowing SpO_2 of the AP group was also significantly higher than that of the control group. Conclusions Acupuncture and swallowing training have similar effects in treating dysphagic stroke patients.Swallowing function and misaspiration cannot be predicted based on decreases in SpO_2.

Interleukin 24 ( IL-24) has a good prospect in tumor therapy because it can specifically inhibit proliferation in a variety of tumor cells in vitro and in vivo and induce apoptosis of tumor cells without affecting normal cells .Gene therapies which use recombinant adenovirus as a vector have some limitations that restrict the clinical application of IL-24. In comparison, protein drugs have tremendous advantages .In this paper, the progress in research on IL-24 gene engineering protein is elaborated .

Objective To investigate the effects of the rat serum with chronic renal failure (CRF) on ubiquitin-proteasome pathway,histone acetyltransferase p300 and activation of activating transcription factor 4(ATF4) of rat arterial vascular smooth muscle cells(VSMCs) cultured in vitro,and explore the possible mechanism.Methods To establish the rat model of CRF by 5/6 nephrectomy,VSMCs were incubated in the media with the 10％ of CRF serum or control serum in vitro.The mRNA expressions of ubiquitin(Ub),ubiquitin activating enzyme(E1),ubiquitin ligases enzymes (β-transducin repeat containing protein 1,β-TrCP1),p300 and ATF4 in the rat VSMCs were examined by using realtime PCR.Expressions of E1,β-TrCP1,p300 and ATF4 proteins in response to the CRF serum in VSMCs were determined by Western blotting analysis.The enzyme activities of 20S proteasomes in the total protein were examined by using three special fluorogenic peptide substrates.Results The CRF serum significantly promoted the mRNA expressions of Ub,E1,β-TrCP1,p300 and ATF4 in VSMCs in a time dependent manner.Compared with that in control serum group,the mRNA levels of Ub,E1,β-TrCP1,p300 and ATF4 in CRF serum group increased significantly (P ＜ 0.01).The CRF serum also increased the protein expressions of E1,β-TrCP1 and p300 in a time dependent manner.The expression of ATF4 was decreased,but the difference was not significant (P ＞ 0.05).Compared with that in control serum group,the protein expressions of E1,β-TrCP1,p300 and ATF4 in CRF serum group increased significantly (P ＜ 0.01).The activities of 20S proteasomes in the CRF serum group were significantly increased in a time dependent manner.Compared with that in control serum group,the activities of 20S proteasomes in the CRF serum group increased significantly (P ＜ 0.01).Conclusions The serum of CRF rat can effectively active the ubiquitin-proteasome pathway,but ATF4 ubiquitinylated degradation is blocked.The latter may be associated with increased expression of p300.

Baculoviral IAP(inhibitor of apoptosis protein) gene was identified firstly in IAP gene family.The structurcal feature of baculoviral IAP genes are characterized BIR and RING domain;Despite similar to P35 in antiapoptotic function,baculovrial IAP and P35 differ in structure and mechnism of action.Phylogenetic analysis of IAP genes and lots of evidence sppport the origin of this viral gene by capture of a host gene early in the evolution of Lepidoptera.

Objective To investigate the effects of exogenous hydrogen sulfide on brain edema and injury and their mechanisms. Methods Sixty male SD rats were randomly divided into a sham operation group, an ischemia-reperfusion group, a 30 ppm hydrogen sulfide group, and a 60 ppm hydrogen sulfide group (n =15 in each group; 1 ppm =1 mg/L). A model of focal cerebral ischemia for 2 h and reperfusion for 24 h was induced by middle cerebral artery occlusion. The neurological scores were observed after 24 h cerebral ischemia-reperfusion. The cerebral infarction volume, the degree of brain edema, and the changes of blood-brain barrier permeability were measured. Western blotting was used to detect the expressions of occludin and zonula occludens-1 protein (ZO-1) in ischemic penumbra. Results Compared with the ischemia-reperfusion group, the neurological function scores in the 30 ppm and 60 ppm hydrogen sulfide group significantly increased in a dose-dependent manner (al P <0.05) and the neurological deficits and infarct volume reduced (al P < 0.05), and the
brain edema aleviated (al P < 0.05). The content of Evans blue in the ischemic brain tissue in the ischemia-reperfusion group increased significantly compare with the sham operation group (0.74 ±0.14 μg/100 mg vs. 0.19 ±0.06 μg/100 mg; P <0.05). The content of Evans blue in the brain tissue in the 30 ppm hydrogen sulfide group (0.55 ±0.10 μg/100 mg ) and the 60 ppm hydrogen sulfide group (0.35 ±0.08 μg/100 mg ) decreased significantly compared with the ischemia-reperfusion group (al P < 0.05), among them the 60 ppm hydrogen sulfide group was significantly lower than the 30 ppm hydrogen sulfide group (P <0.05). Western blot analysis showed that expression levels of occludin in penumbra (0.621% ±0.101% vs.0.787% ±0.087% vs.0.453% ± 0.127%; P <0.05) and ZO-1 (0.602% ±0.118% vs.0.778% ±0.805% vs.0.426% ±0.146; P <0.05) in the 30 ppm and 60 ppm hydrogen sulfide groups increased significantly compared with the ischemia-reperfusion group, among them, the expression levels of occludin and ZO-1 in the 60 ppm hydrogen sulfide group were significantly higher than those in the 30 ppm hydrogen sulfide group (al P < 0.05). Conclusions Inhalation of exogenous hydrogen sulfide can significantly attenuate brain edema after ischemia-reperfusion in a dose dependent manner, reduce infarct volume, and improve neurological function.Their mechanisms may be associated with inhibiting the downregulated expressions of occludin and ZO-1 and maintaining the integrity of the blood-brain barrier.