OBJECTIVE: To study the protective effect of U83836E (lazaroids) on ischemia-reperfusion injury (IRI) in isolated rat heart. METHODS: The isolated rat heart models of IRI were developed by linking the isolated rat heart to Langendorff perfusion system. U83836E was injected in different time, the rat heart function of ischemia-reperfusion was observed. Lactate dehydrogenase (LDH) and the cardiac treponin(cTnT) content in the outflow of coronary artery, and heat shock protein70 (HSP70) of myocardial tissue were measured. RESULTS: Compared with model group of ischemia-reperfusion, in the presence of U83836E, left ventricuIar systolic pressure(LVSP), the maximum rise rate of left ventricular pressure(+dp/dtmax) were increased (P<0.01), left ventricular end diastolic pressure(LVEDP)was depressed(P<0.05), the maximum fall rate left of ventricular pressure (-dp/dtmax) was accelerated (P<0.01). The content of LDH and cTnT in effluent samples of U83836E group(A group or B group) were lower than that in model group(P<0.01), the expression of HSP70 in myocardial tissue was increased(P<0.01). CONCLUSION: U83836E has protective effect on myocardial ischemia-reperfusion injury in isolated rat heart.

Down Syndrome ; complications ; Humans ; Infant, Newborn ; Male ; Pleural Effusion ; complications ; congenital

Objective To investigate the expressions of transforming growth factor-?1(TGF-?1)and ?-smooth muscle actin(?-SMA)in the lungs of mice with intra-amniotic endotoxin priming and exposed to 60% hyperoxia after born in order to elucidate the possible relationship with bronchopulmonary dysplasia(BPD).MethodsFifty C57 pregnant mice were divided into 2 groups:lipopolysaccharide(LPS,40 ?g/L)group and saline solution group,and then received an intra-amniotic injection of corresponding solution on E15.The neonatal mice of each group were randomized to be set in 60% oxygen exposure or in room air.So there were 4 subgroups,LPS+air,LPS+hyperoxia,saline+air and saline+hyperoxia groups.On days 1,3,7,10 and 14 after birth(8 rats each time point),the lung histological changes was assessed with hematoxylin and eosin(HE)staining for radial alveolar counting(RAC).The expressions of TGF-?1 and ?-SMA proteins were detected by immunohistochemical and immunofluorescence staining,and the expressions of TGF-?1 and ?-SMA mRNA by real-time polymerase chain reaction(RT-PCR).ResultsIn the LPS+hyperoxia group and saline+hyperoxia group,RAC began to decrease on day 3,and then further declined in a time-dependent manner.Compared with saline+hyperoxia group,LPS+hyperoxia group had significantly lower RAC(P

Objective To investigate the roles of adrenomedullin(ADM) and endothelin-1(ET-1) in left-to-right shunt congenital heart disease(CHD) complicated with congestive heart failure(CHF).Methods Plasma ADM and ET-1 concentrations were measured by radioimmunoassay in heart failure stage and recovery period of 18 infants with left-to-right shunt CHD.Also 20 healthy infants acted as control group were measured.Results Plasma concentrations of ADM and EF-1 were significantly higher in heart failure stage of left-to-right CHD infants than those in their recovery period,and both in their heart failure stage and in their recovery period were higher than that in control group(P

Objective To explore the change and clinical significance of plasma levels of thrombomodulin(TM) in children with Kawasaki disease(KD)(n=44) before and after treatmen with intravenous immunoglobulin(IVIG).Methods Enzyme-linked immunosorbent assay(ELISA) was used to detect the plasma levels of TM in children with KD(n=44) before and after treatment with IVIG and in normal control group(n=15),respectively.Children with KD were enrolled from September 2004 to June 2006,one group(n=20) with coronary artery lesions(CALs) and another group(n=24) without CALs.The control were enrolled from heathy children in clinic service.Results The plasma level of TM in KD group before treatment with IVIG was significantly higher than that in control group(P

Animals ; Animals, Newborn ; Apoptosis ; drug effects ; Brain ; drug effects ; pathology ; Disease Models, Animal ; Estrogens ; pharmacology ; Female ; Hypoxia-Ischemia, Brain ; drug therapy ; In Situ Nick-End Labeling ; Male ; Rats ; Rats, Wistar

In this study, 31 Notopterygium incisum populations were analyzed using ITS sequences to investigate the genetic structure. The results showed that: the ITS region ranged in size from 634 to 635 bp and base composition was with high G + C content of 57.8%. Thirty-one polymorphic sites were detected from 402 sequences of 31 populations of N. incisum, and the proportion of polymorphic sites was 4.88%, in which parsimony informative sites were up to 12. And 31 haplotypes were identified based on these polymorphic sites. Molecular variance analysis (AMOVA) indicated that high genetic differentiation (57%) existed among population, and gene flow was low (N(m) = 0.38) among populations. Phylogenetic relationships of 31 haplotypes were analyzed using NJ method with N. forbesiias an out-group. Phylogenetic analysis showed that 31 haplotypes from different populations mixed together and did not form distinct geographically separated clades.
Apiaceae ; classification ; genetics ; Base Sequence ; China ; DNA, Intergenic ; genetics ; Gene Flow ; Genetic Variation ; Molecular Sequence Data ; Phylogeny

AIM: To investigate serum vascular endothelial growth factor (VEGF) level in patients with bladder transitional cell carcinoma(BTCC) and its clinical significance. METHODS: ELISA method was used to examine the serum VEGF level in 42 cases of bladder transitional cell carcinoma and in 10 cases of normal people as control. The change of VEGF in blood of the pre-operation and post-operation patients with BTCC was also compared. RESULTS: The VEGF level in blood of the patients was higher than that of the normal people, in spite of pre-operation, post-chemotherapy, and post-operation, but VEGF level decreased obviously after chemotherapy or operation. In addition, the plasma VEGF level was related to the grade and invasion of tumor. CONCLUSION: Detecting serum VEGF level can help us to assess the change of tumor and therapeutic effect.

Objective To prepare specific polyclonal antibodies to outer membrane protein (Opr) D_2 of Pseudomonas aeruginosa (PA),and explore the relationship between loss of OprD_2 and imipenem resistance.Methods The genomic DNA of PA was ex- tracted with phenol:chloroform.OprD_2 coding gene was amplified by PCR and prokaryotic expression vector pRSET-OprD_2 was constructed.OprD_2 protein was expressed by IPTG induction in E.coli BL21(DE3),and purified with SDS-PAGE.The new protein band was recovered and used as antigens to subcutaneously immunize two New Zealand rabbits to prepare poly- clonal antibody.The specificity of the antibody was determined by Western blot.The expression of OprD_2 in 32 clinical isolates of PA was detected with the prepared polyclonal antibody by Western blot.Results The vector pRSET-OprD_2 has been success- fully expressed in E.coli BL21 (DE3).The polyclonal anti-OprD_2 antibody with high specificity has been successfully pre- pared.Present results show that of the 27 imipenem-resistant PA clinical isolates,OprD2 protein was low-expressed in 5 iso- lates (18.5%) and normally expressed in 2 isolates (7.4%) but not expressed in 20 isolates (74.1%).Conclusions The loss or low-expression of OprD_2 is one of the essential mechanisms accounting for imipenem resistance in clinical isolates of PA.

OBJECTIVE: To investigate the clinical effect of acupuncture at Sifeng (EX-UE10) combined with Wang's Baochi Pills in the treatment of pediatric malnutrition, so as to provide a more effective method for pediatric malnutrition. METHODS: A total of 201 children with malnutrition were randomly divided into combined treatment group (n＝102) and control (Baochi Pill) group (n＝99). The children in the combined treatment group were treated by acupuncture stimulation of Sifeng (EX-UE10, till no more yellowish-white effusion out) and oral administration of Wang's Baochi Pills, and those in the control group treated by oral administration of Wang's Baochi Pills only. The course of treatment was one month for both groups. The integral score of symptom was assessed according to the main symptoms as body weight and height and food-intake, and to the secondary symptoms including mentality, agitation, sleep, hair gloss, susceptibility to cold, hydrosis, abdominal distension, and susceptibility to diarrhea or constipation. The therapeutic effect was assessed by consulting the "Criteria for Diagnosis and Therapeutic Effect Evaluation of Syndromes/Illnesses of Traditional Chinese Medicine (TCM)" and "TCM Professional Criteria of the People's Republic of China for Diagnosis and Therapeutic Effect Evaluation of Syndromes/Diseases of TCM Pediatric". RESULTS: After the treatment, the total symptom scores of both groups were significantly decreased in comparison with their own pre-treatment (P<0.05), and the scores of total symptom after the treatment and the 1st, 2nd and 3rd follow-up surveys were obviously lower in the combined treatment group than in the control group (P<0.05). Of the 99 and 102 cases in the control and combined treatment groups, 47 and 59 were cured, 39 and 37 experienced improvement in their symptoms, and 13 and 6 failed, with the effective rate being 86.87% (86/99) and 94.11%(96/102), respectively. The effective rate of the combined treatment was evidently higher than that of the simple medication (P<0.05). CONCLUSION: Acupuncture of Sifeng (EX-UE10) combined with Wang's Baochi Pills is better than administration of Wang's Baochi Pills alone in the therapeutic effect for pediatric malnutrition.