Objective To evaluate a new computer-aided technique applicable for myocardial contrast echocardiography(MCE) to quantitate automatically calibrated myocardial contrast intensity(CD and to test the feasibility of calibrated CI in assessing myocardial perfusion. To analyze the relationship on myocardial perfusion,regional contractile function and cell apoptosis in stunned myocardium. Methods According to coronary occlusion and reperfusion at different times, rabbits were divided into three groups: 15 min occlusion/30min reperfusion (group Ⅰ ),30 min occlusion / 60min reperfusion (group Ⅱ ) and 120 min occlusion / 60min reperfusion (group Ⅲ ). MCE was performed on all rabbits at baseline,occlusion and after reperfusion,and its images were analyzed by a new computer-aided technique. Myocardial calibrated CI of each segment was measured automatically by software. Percentage wall thickening (WT) of each risk segment at each stage were also measured by echocardiography. The apoptotic index(AI) in regional left myocardial dysfunction was calculated by terminal deoxynucleotidyl transferease-mediated biotinylated deoxyuridine triphosphate nick end labeling(TUNEL ). Results (1) During occlusion, WT in the areas at risk decreased to zero or negative and the calibrated CI values were significantly lower than those at baseline ( P ＜0.01 ). After reperfusion, WT in all risk segment remained depressed, but calibrated CI significantly improved in group Ⅰ and Ⅱ while those remained unchanged in group Ⅲ. (2)AI in risk myocytes were (13. 70 ± 5.48 ) %, (36.25 ± 5.55 ) % and ( 62.06 ± 6. 70 ) %, respectively, both statistically significant difference between the two groups ( P ＜0.05 or P ＜ 0.01 ). AI were negatively correlated to WT and calibrated CI ( r = - 0. 87 and r = - 0. 77, P ＜0.05). Conclusions MCE with computer-aided technique can assess quantitatively myocardial perfusion and regional contractile function. Short-term ischemiareperfusion does not cause myocardial necrosis, but it will lead to myocardial cell apoptosis and the phenomenon of myocardial stunning. Prolonged ischemia, even if given sufficient reperfusion, can lead to apoptosis and necrosis simultaneously.

Objective To investigate the expression of hypoxia inducible factor-1α(HIF-1α)in the transplanted liver in rats and the role of HIF-1α in the JNK signaling pathway.Methods Ninety-six SD rats were randomly divided into normal control(NC)group,autotransplantation(AT)group,hypoxia preconditioning (HP)+ AT group according to simple random sampling method.No treatment was applied to the rats in the NC group except for blood vessel separation.Stable rat models of 70％ AT was established in the AT group.Rats in the HP + AT group were given 8％ oxygen mixed gas for 90 minutes before the operation.The levels of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)were detected at 1,2,12,24 hours after operation,and the expression of HIF-1α in the hepatic tissue,mRNA expression of c-Jun,and protein expression of Cleaved Caspase-3 were detected by immunohistochemical staining,reverse transcription-polymerase chain reaction and Western blot,respectively.All data were analyzed using the analysis of variance or t test.Results The levels of ALT and AST in the HP + AT group were significantly lower than those in the AT group,while higher than those in the NC group at 1,2,12 and 24 hours after the operation(F=2631.371,1177.642,810.383,682.848;743.618,1095.522,375.995,580.613,P ＜0.05).The protein expression levels of HIF-1α in the AT group were significantly lower than those in the HP + AT group,but higher than those in the NC group at 1,2,12 and 24 hours after operation(F = 191.737,284.482,459.419,213.782,P ＜ 0.05).The mRNA expression levels of c-Jun in the HP + AT group were significantly lower than those in the AT group,while higher than those in the NC group at 1,2 and 12 hours after operation(F = 66.211,53.169,9.645,P ＜ 0.05).There was no significant difference in the mRNA expression of c-Jun among the 3 groups at 24 hours after operation(F = 1.100,P ＞ 0.05).The protein expressions of Cleaved Caspase-3 in the HP + AT group were significantly lower than those in the AT group,while higher than those in the NC group at 1,2,12 and 24 hours after the operation(F =23.133,31.158,14.347,29.043,P ＜ 0.05).Conclusion High expression of HIF-1α after HP inhibits apoptosis of hepatic cells and alleviates ischemia reperfusion injury of hepatic tissues by suppressing JNK activation,down-regulating protein expression of Cleaved Caspase-3 after orthotopic liver transplantation in rats.

Anticoagulants ; poisoning ; Humans ; Male ; Middle Aged ; Rodenticides ; poisoning

Objective To investigate the clinical efficacy of Dahuang Xiaozhi Suppository in treating chronic abacterial prostatitis/chronic pelvic pain syndrome (CABP/CPPS) of moist heat and blood stasis syndrome. Methods Two hundred patients of CABP/CPPS were randomly divided into control group and observation group, 100 cases in each group. 2 groups were disabled anti-infective meidicne and other preparations, and received diet and life intervention. The control group received the treatment of Qianliean Suppository, and the observation group received the treatment of Dahuang Xiaozhi Suppository, one capsule each time, once a day, into the anus depth of about 3–4 cm. Ten days were a treatment course with two day interval between each course of treatment. The treatment lasted for three courses. The clinical efficacy of the two groups was observed and compared. The indexes including the scores of NIH-CPSI, leukocyte count and lecithin corpuscles in prostatic fluid, and urinary flow rate were evaluated. Results The total effective rate was 100% (100/100) in the observation group and 78% (78/100) in the control group, and the observation group was much higher than control group (P<0.05). The scores of NIH-CPSI and leukocyte count in both groups were significantly lower after treatment (P<0.01), and those in observation group weresignificantly lower than those in control group (P<0.01). The cases with lecithin corpuscles++++in both groups were significantly more after treatment (P<0.01), and those in observation group were significantly more than those in control group (P<0.01). The peak flow rate and mean flow rate in both groups were higher after treatment (P<0.01), and it was higher in observation group (P<0.01). Conclusion The efficacy of Dahuang Xiaozhi Suppository in treating CABP/CPPS of moist heat and blood stasis syndrome is remarkable, and it is better than Qianliean Suppository.

In this study, based on the transcriptome data, we cloned the full-length cDNAs of TwAACT gene from Tripterygium wilfordii suspension cells, and then analyzed the bioinformation of the sequence, detected the genetic differential expression after being induced by methyl jasmonate (MeJA) by RT-PCR. The full-length cDNA of the TwAACT was 1 704 bp containing a 1 218 bp open reading frame (ORF) encoding a polypeptide of 405 amino acids (GeneBank accession No. KP297934). The deduced isoelectric point (pI) was 6.10, a calculated molecular weight was about 41.20 kDa, and online prediction showed that TwAACT had two catalytic active sites. After the induction of MeJA, the relative expression level of TwAACT increased rapidly. The expression level of TwAACT was highest at 24 h. TwAACT was cloned firstly, that laid the foundation for identifying thegene and illustrating thebiosynthesis mechanism and its synthetic biology.
Acetyl-CoA C-Acetyltransferase ; chemistry ; genetics ; metabolism ; Amino Acid Sequence ; Cloning, Molecular ; Gene Expression Regulation, Plant ; Models, Molecular ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; chemistry ; genetics ; metabolism ; Sequence Alignment ; Tripterygium ; chemistry ; classification ; enzymology ; genetics

Acute gangrenous cholecystitis is a histologic diagnosis,mostly diagnosed by intraoperative or postoperative pathology.In China,as the aging population increases,the incidence of the disease increases steadily.AGC is still an indication of surgical treatment for acute cholecystitis(AC),but the diagnosis and treatment of AGC remains a challenge for clinical surgeons.However,preoperative clinical data such as age, gender,hypertension,diabetes,coronary heart disease,cholelithiasis disease history,laboratory examination and radiographic results are helpful in early diagnosis and reasonable surgical timing selection.

OBJECTIVETo assess the prevalence of metabolic syndrome (MS) and its association with mortality of cerebro-cardiovascular diseases in senile population.

METHODSData were collected from 1926 people aged 60 and over, who took part in routine health examination in our hospital from 1996 to 1997. All subjects were followed up for 10 years. MS was diagnosed by using the definition recommended by Chinese Diabetic Society in 2004. Cox-proportional hazards models were used in survival analyses and to calculate the relative risk (RR) of cerebro-cardiovascular diseases mortality.

RESULTSThe prevalence of MS was 25.03% (n = 482, Group 2) in this population. The 10 year mortality of cerebro-cardiovascular diseases was significantly higher (6.82/1000-person year vs. 2.55/1000-person year, P < 0.05) and the cumulative survival rate was significantly lower (92.46%vs. 97.14%, P < 0.05) in group 2 compared that in group 1 (non-MS, n = 1444). Compared with group 1, RR of cerebro-cardiovascular diseases mortality was 2.52 (95% CI 1.367 - 4.661, P < 0.05) in group 2.

CONCLUSIONThere was a high prevalence of MS in the senile population and MS was associated with higher 10 years mortality of cerebro-cardiovascular diseases.

Aged ; Cardiovascular Diseases ; mortality ; Cerebrovascular Disorders ; mortality ; Female ; Humans ; Hyperinsulinism ; mortality ; Male ; Metabolic Syndrome ; mortality

Cycloartane triterpenoids, which exist widely in nature, are mainly distributed in Astragalus (Leguminosae) species, Trib. Cimicifuga (Ranunculaceae) and Thalictrium (Ranunculaceae) species and possess various bioactivities. Along with the development of isolation techniques of phytochemistry, more and more this kind of compounds are isolated and identified. However, bioactivity researches on the compounds are relatively lagged behind. Most researches are still in screening level, deficient in mechanism elucidation, short of action proven in vivo and SAR analysis. The author summarized the bioactivity of this kind of compounds from all aspects: anti-tumor, anti-virus, antibacterial, anti-inflammation, immune-regulatory, cardiovascular system, hepatic protection and so forth. This will be benefit for the further research and development of the compounds.
Animals ; Anti-Infective Agents ; isolation & purification ; pharmacology ; Anti-Inflammatory Agents ; isolation & purification ; pharmacology ; Antineoplastic Agents, Phytogenic ; isolation & purification ; pharmacology ; Astragalus Plant ; chemistry ; Cimicifuga ; chemistry ; Humans ; Plants, Medicinal ; chemistry ; Thalictrum ; chemistry ; Triterpenes ; isolation & purification ; pharmacology

4-(Cytidine-5-diphospho) -2-C-methyl-D-erythritol kinase is a key enzyme in the biosynthesis pathway of terpenoids. According to the transcriptome database, the specific primers were designed and used in PCR. The bioinformatic analysis of the sequenced TwCMK gene was performed in several bioinformatics software. The Real-time fluorescence quantification polymerase chain reaction (RT-qPCR) were used to detect the expression levels of TwCMK from T. wilfordii after elicitor MeJA supplied. The results showed that the full length of TwCMK cDNA was 1 732 bp encoding 387 amino acids. The theoretical isoelectric point of the putative TwCMK protein was 5.79 and the molecular weight was about 42.85 kDa. MeJA stimulated the rising of TwCMK expression in suspension cell and signally impacted at 24 h. The research provides a basis for further study on the regulation of terpenoid secondary metabolism and biological synthesis.
Amino Acid Sequence ; Cloning, Molecular ; Computational Biology ; Gene Expression Regulation, Plant ; Models, Molecular ; Molecular Sequence Data ; Phosphotransferases (Alcohol Group Acceptor) ; chemistry ; genetics ; metabolism ; Phylogeny ; Plant Proteins ; chemistry ; genetics ; metabolism ; Sequence Alignment ; Tripterygium ; chemistry ; enzymology ; genetics

This study was aimed to investigate the relationships between oxidative stress and depression in patients with acute leukemia. Ninety two cases of acute leukemia were randomly enrolled in the study. Depressive disorder was assessed by self-rating depression scales (SDS) and multiple items questionaires. The total anti-oxidation capability (T-AOC), reactive oxygen species (ROS) and superoxide dismutase (SOD) activities, as well as malondialdehyde (MDA) and nitric oxide (NO) levels were measured in pre-treatment periods. Meanwhile, the steady state level of human 8-hydroxyguanine glycosylase (hOGG1) mRNA transcript was monitored by quantitative real-time PCR. The results showed that the defence of antioxidant system was impaired in patients with acute leukemia. The incidence of depression was 47.83% in 92 cases. T-AOC and SOD activities were significantly decreased in patients with depression, while ROS, NO, MDA levels and hOGG1 mRNA expression were reverse of the former. It revealed that depression positively correlated with course of disease and hOGG1, and negatively correlated with T-AOC. It is concluded that oxidative damage occurs in patients with acute leukemia, moreover, lower antioxidant defences exist in depressive patients. These results underscore the notion that oxidative stress may promote the development of depression.
Adult ; Aged ; Depression ; complications ; metabolism ; Female ; Humans ; Leukemia, Myeloid, Acute ; complications ; metabolism ; Male ; Middle Aged ; Oxidative Stress ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; complications ; metabolism ; Reactive Oxygen Species ; metabolism ; Superoxide Dismutase ; metabolism