Adolescent ; Amitriptyline ; poisoning ; Female ; Humans

ObjectiveTo investigate the effect and mechanism of ischemic preconditioning (IP)on preservation/reperfusion injury of rat liver graft.MethodsOne hundred and twenty eight male Sprague Dawley rats undergoing orthotopic liver transplantation were randomly divided into 4 groups: group A (control group), group B (IP group), group C (adenosine,Ado group), and group D (inhibitor of NO synthesis,NAME group).ResultsPosttransplantation one week survival rate, 2 hrs reperfusion serum NO, and hepatic tissue adenosine in IP group and Ado group were 88%(7/8) and 88%(7/8), (33 0?6 1)??mol/l and (29 1?6 5)??mol/l, ( 7 2? 1 8)??mol/g and (5 7?1 3)??mol/g, respectively, while in control group they were 38%(3/8),( 15 4? 3 0)?mol/l, and (3 69?0 54)??mol/g, respectively(all P 0 05). However, hepatic tissue adenosine level was (5 56?1 19)??mol/g, higher than that in control group( P

Objective To investigate the changes and significance of serum nitric oxide levels in the early stage after rat liver transplantation.Methods Male Sprague Dawley rats were used as do- nors and recipients of orthotopic liver transplantation,and the time of cold preservation and anhepatic phase was 4 h and 25 min respectively.Forty-eight rats were randomly divided into groups A,B and C (n=16 each).The samples of blood were taken from vena cava and hepatic tissues from left lobe 2 h, 4 h,6 h in groups A,B and C respectively after liver graft reperfusion.ALT and NO levels in serum were detected,and the expression of NF-?B in hepatic tissue was examined by immunohistochemical technique.Amounts of bile flow in 5 min after liver graft reperfused initially were measured.The pathological changes in liver tissues were observed.Results Amounts of bile flow in 5 min in group A (3.73?1.11?l) were greater than those group B (2.35?0.92?l) and group C (2.23?0.81?l) (P

Objective To construct recombinant plasmid pEGFP C1 antisense survivin and than transfect it to MKN 45 gastric cancer cells for studying the expression of survivin mRNA and its effects on apoptosis of cancer cells. Methods Recombinant pEGFP C1 antisense survivin plasmid was cloned and transfected to MKN 45 gastric cancer cells by lipofectamine. Apoptosis of gastric cancer cells was assayed by flow cytometry. The levels of survivin mRNA before and after transfection were determined by reverse transcription polymerase chain reaction analysis. Results After recombinant pEGFP C1 antisense survivin plasmid was transfected, the apoptosis of MKN 45 cells was increase, the cell number in G 2/M phase was decreased, and the level of survivin mRNA was inhibited. Conclusions pEGFP C1 antisense suvivin can promote the apoptosis of MKN 45 gastric cancer cells, that might attribute to the inhibition on cell proliferation and expression of survivin mRNA.

Objective To investigated the expression of scavenger receptor A(SR-A) and lipopolysaccharide(LPS) receptor CD14 in endotoxin-induced acute liver injury.Methods Ninety Wistar rats were randomly divided into endotoxaemia group(LPS group) and normal saline group(NS group).The model of endotoxaemia and acute endotoxin-induced liver injury was established by injection of endotoxin(5mg/kg) via tail veins in LPS group,while the rats in NS group received injection of 0.2ml normal saline as control.At 0,1.5,3,6,12h after injection,the levels of endotoxin,TNF-?,IL-1,alanine transaminase(ALT) and total bilirubin(TB) in plasma,SR-A and CD14 expressions in liver tissues were determined,pathological changes of liver tissues and ultrastructural changes of Kupffer cells(KCs) were observed by light and electron microscopy respectively,while the phagocytosis of KCs was determined too.Results Compared with NS group,KCs were activated on morphology and functions(proliferated diffusely,enlarged in size and increased in phagocytosis function),levels of TNF-? and IL-1 increased markedly,the pathological changes of cell degeneration and necrosis and the liver function were gradually aggravated,while SR-A expression decreased and CD14 expression increased obviously(P

Objective To investigate the effect of peer-education model on clinical practice of undergraduate interns.Methods Thirty-six undergraduate interns were arranged into control and experimental group.Twelve postgraduates were selected as peer-educators.Medical ethics and style,attitude,clinical thoughts,operations and satisfactory of patients were used to judge their work.They had to take exams at the end of the clinical practice.Results Undergraduate interns in experi-mental group got higher scores than control group.Conclusion Peer-education model has a posi-tive effect on clinical practice of undergraduate interns.

In chronic kidney disease (CKD), inflammatory responses during the progression of renal tissue and tissue injury related causes its progression to end-state renal disease. Among them, nuclear factor (nuclear factor, NF)-kappaB signaling pathway by regulating the corresponding nuclear expression of target gene transcription, as well as affecting the synthesis of inflammatory mediators, induction of inflammation lead to kidney damage and renal fibrosis. Some single herbs and their extracts (such as Astragali Radix, Scutellariae Radix, Ginkgo Folium) and some traditional Chinese medicine (such as Danggui Buxue decoction, Qilian decoction) can reduce the inflammatory damage induced by renal tissue NF-kappaB signaling pathway and delay the progression of CKD.
Animals ; Humans ; Kidney ; drug effects ; pathology ; Medicine, Chinese Traditional ; methods ; NF-kappa B ; metabolism ; Renal Insufficiency, Chronic ; drug therapy ; pathology ; Signal Transduction ; drug effects

This study was aimed to analyze the environment and situation of patent strategy implementation of manufacturing industry of Chinese patent medicines in G uangdong province . This article pointed out that G uang-dong Chinese patent medicines manufacturing implementation patent strategy faced huge opportunities and chal-lenges. It was suggested that the fully understanding, mastering and using of beneficial conditions as well as con-trolling and eliminating the adverse factors will contribute to the better implementation of Chinese patent medicines manufacturing patent strategy in G uangdong province .

Objective Survivin is overexpressed in gastric cancer. However it not expressed in normal gastric mucosa. The expression of survivin is tightly related to the prognosis of gastric cancer.By gene reconstruction we generated pcDNA3 survivin mutant(Cys84Ala) plasmid, and observed its effect on the gastric carcinoma cell lines. Methods The survivin mRNA and protein expression levels were determined by reverse transcription polymerase chain reaction(RT PCR) analysis,Western blot and immunohistochemical staining respectively . Flowcytometry and acridine orange staning were employed to detect apoptosis. Results Overexpression of survivin mRNA and protein were detected in the gastric cancer cell lines. Inhibition of survivin by survivin mutant cDNA induced apoptosis,activated caspase 3 activity,cleaved PARP and promoted cytochrome C releasing in gastric cancer cells,and effectively sensitized gastric cancer cells to chemotherapeutic agents. Conclusion Inhibition of survivin may induce apoptosis in gastic cancer and sensitize gastric cancer cells to chemotherapeutic agents.Survivin targeted therapeutic protocol may potentially benefit gastric cancer therapy.

Objective To develop a nylon membrane chip for rapid and systematic detection of the diabetes-associated 45 mutant loci in mitochondrial DNA(mtDNA).Methods The mutant-and wild-type probes were designed for detection of 45 mutant loci in mtDNA with Primer Premier 5.0 and NCBI BLAST softwares and the 90 probes with 8 poly T were immobilized on the Hybond N~+ nylon membranes which were treated with 5?SSC Buffer by UV-crosslinking;Then asymmetric PCR was employed to obtain the target single strand DNA(ssDNA).The PCR products were labeled with biotin after purification.NBT/BCIP was used as substrate that yields a very intense purple signal followed by AP-avidin,and the signals were observed in 24 samples with known sequences to evaluate the chips,each sample was repeatedly measured three times.Results The specific target fragments of 45 loci can be amplified under the same condition with nine sets of primers.The annealing temperatures of the wild-type [(59.01?1.42)℃] and mutant-type [(59.34?1.29)℃ ] probes are so close(t=1.046,P =0.301)that hybridization can be performed at the same temperature.The spots on the membrane chip are distinct,regular and well-distributed.The results of positive-and negative-control are perfect.The signals of negative probes and the background are similar.The results of chip were nearly concordant with that of DNA sequences(?~2=113.132,Kappa value =0.888,P = 0.000)except for T16189C mutant.Conclusions We have successfully developed a nylon membrane chip for rapid and systematic detection of the diabetes-associated 44 mutant loci in mtDNA.It could be used for screening for diabetic patients and high-risk people.