The isolated vessel elements from the xylem in Chinese Sarcandra species were observed by scanning electron microscope and optical microscope. The vessel elements with simple pits or (and) bor dered pits or (and) scalariform pits or (and) circular-scalariform pits in their secondary walls are 1200-1900 in length and all have scalariform multiperforation plates in which the numbers of bars are between 60 to 160.

Acute Disease ; Autonomic Nervous System Diseases ; Child ; Humans ; Male

Adult ; Antigens, CD20 ; metabolism ; Diagnosis, Differential ; Female ; Humans ; Ki-1 Antigen ; metabolism ; Leukocyte Common Antigens ; metabolism ; Lymph Nodes ; metabolism ; pathology ; Lymphoma, B-Cell ; pathology ; Pseudolymphoma ; metabolism ; pathology

Objective To investigate the effect of adrenomedullin on rat renal tubular epithelial cell line (NRK-52E) apoptosis induced by hypoxia-reoxygenation (HR) injury and its mechanism.Methods NRK-52E cells were cultured and randomly allotted to the following 4 groups:control group,HR group,empty plasmid + HR group,ADM + HR group.NRK-52E cells were transfected with pcDNA3.1-myc-his B empty vector or pcDNA3.1-ADM by transfection complex comprising optimal proportion of plasmid and Fugene HD reagents.Cells were counted by trypanblau and cell survival rate was computed.The concentration of lactate dehydrogenase (LDH) was detected by spectrophotometric method to evaluate cell vitality.The apoptotic rate of NRK-52E cells was measured by flow cytometry.The transfer efficiency was detected by immunocytochemistry.The mRNA expressions of ADM,Bax,Bcl-2 and Fas were determined by Semi-quantitative RT-PCR,and active caspase-3,8,9 protein expression were examined by Western blotting.Results Compared with control group,the expression of ADM significantly increased in HR group (P ＜ 0.05).The expression of ADM significantly increased in ADM + HR group than that in empty plasmid + HR group.Compared with control group,in HR group,the living cell counts and cell survival rate significantly decreased; the LDH concentration in media,apoptotic rate and the levels of Bax,Bcl-2,Bax/Bcl-2,Fas,active Caspase -3,8,9 significantly increased (all P ＜ 0.05).Compared with HR group,in ADM + HR group,the living cell counts and cell survival rate significantly increased; the LDH concentration in media,the cell apoptotic rate and the levels of Bax,Bax/Bcl-2,Fas,active Caspase-3,8,9 significantly decreased,while Bcl-2 was promoted (all P ＜ 0.05).The above indexes had no differences between empty plasmid + HR group and HR group (all P ＞ 0.05).Conclusion The increased expression of ADM can inhibit NRK-52E apoptosis induced by HR,and the mechanism might be achieved by inhibiting mitochondrial and death receptor-mediated apoptotic pathways.

Objective To determine the value of oxygenation index in assessing the outcome of mechanical ventilated patients with acute respiratory distress syndrome (ARDS).Methods From September 2008 to September 2013,patients meeting the Berlin definition of ARDS were evaluated in this retrospective study.Data included oxygenation index (PaO2/FiO2) on day before,and day 1 and day 3 after mechanical ventilation.The levels of PaO/FiO2 on day before and day 1 after mechanical ventilation were compared between 28-day survivors and non-survivors.Results There were 236 patients meeting the criteria of the Berlin Definition for diagnosis and treated with mechanical ventilation.The mean score of APACHIE Ⅱ and sequential organ failure assessment (SOFA) at the beginning were (19.1 ± 3.0) and (10.8 ±2.5),respectively,while oxygenation index on day before mechanical ventilation was (150.3 ± 62.6) mmHg.According to the hypoxemia grade,patients were divided into mild (n =36),moderate (n =122) and severe (n =78) ARDS,and their levels of PaO2/FiO2 were (80.1 ± 8.1),(162.3 ± 19.9) and (261.6 ± 22.3) mmHg,respectively.There were 92 non-survivors and 144 survivors.No obvious difference in oxygenation index of non-survivors among on day before、and day 1 and day 3 after mechanical ventilation.There was statistically significant difference in oxygenation index between on day before and day 1 after mechanical ventilation in survivors (P ＜ 0.05).Compared with the survivors,the score of APACHE Ⅱ,SOFA,and oxygenation index on day 3 were associated with increased mortality in the non-survivors,respectively (P ＜ 0.05).In respect to the mortality,the cut-off point of score of oxygenation index set at ＜ 180 mmHg on Day 3,an area under the receiver operating curve (AUC) was 0.749 with statistically significance (P ＜ 0.05),leading to sensitivity 61.7％ and specificity 93.2％.The relationship between prognosis and antibiotic resistance did not have statistically significance.Conclusions Data of oxygenation index on early phage of ARDS may be valuable to predict the outcome.A strong predictor of adverse outcome in such conditions was the score of oxygenation index on Day 3 ≤ 180 mmHg.

Objective To observe the efficacy and toxicity of thermotherapy plus chemotherapy in treatment of retroperitoneal lymph node metastasis after radical gastrectomy and sequential radiochemotherapy. Methods Sixty patients with retroperitoneal lymph node metastasis after radical gastrectomy and sequential radiochemotherapy were randomly divided into of microwave hyperthermia combined with chemotherapy group (experimental group, 30 cases) and chemotherapy group (control group, 30 cases) by using random number table method. The control group: oxaliplatin 130 mg/m2, intravenous drip (2 h), d1; S-1: 80 mg·m-2·d-1, P.O 2 times/d (after breakfast and after dinner), d1-14. 3 weeks was 1 cycle, a total of 4 cycles. The experimental group: chemotherapy on the basis of control group combined with microwave hyperthermia, d1, 8. the efficacy and toxicity of two groups were evaluated. Results The efficacy rate of the experimental group was higher than that of the control group, and the difference was statistically significant [66.7 % (20/30) vs. 33.3 %(10/30), P< 0.05]. The improvement of Karnofsky score in the experimental group was better than that in the control group, and the difference was statistically significant [73.3%(22/30) vs. 23.3%(7/30), P<0.05]. The improvement of pain score in the experimental group was better than that in the control group, and the difference was statistically significant [75.0 % (15/20) vs. 17.6 % (3/17), P< 0.05]. There was no significant difference in gastrointestinal reactions of two groups [30.0%(9/30) vs. 26.7%(8/30), P>0.05]. There was no significant difference in bone marrow suppression of two groups [33.3%(10/30) vs. 30.0 % (9/30), P> 0.05]. Conclusion Microwave thermotherapy plus chemotherapy has a good efficacy for retroperitoneal lymph node metastasis after radical gastrectomy and sequential radiochemotherapy, and the patients can well tolerated, it is worthy of clinical promotion.

Aim To evaluate the effect of intermedin (IMD)on cell proliferation and regeneration in rat tu-bular epithelial cell line (NRK-52E)that was subjec-ted to hypoxia-reoxygenation (H/R)injury.Methods The NRK-52E cells were divided into control group and three model groups (H/R,H/R +primitive vec-tor,H/R +IMD vector).The content of LDH was de-tected to observe the influence of IMD on H/R injury. The cell proliferation was detected by MTT.The cell cycle was detected by flow cytometry.Real-time PCR and western blotting were used to determine mRNA and protein levels.Results ① In comparison to the con-trol,H/R treatment decreased the cell viability and in-creased LDH activity (P <0.01 );in contrast,com-pared to H/R,IMD treatment ameliorated cell viability (79.1 5 ±1 .421 % vs 61 .22 ±1 .63%,P <0.05)and decreased LDH activities by 33.85% (P <0.01 ).②The proliferation of NRK-52E cells was significantly in-hibited by H/R treatment.In comparison to the con-trol,H/R treatment of NRK-52E cells increased the proportion of cells in the G0 /G1 phase but decreased the proportion of cells in the S and G2 /M phases. Moreover,the over-expression of IMD resulted in S and G2 /Mphase redistribution and the accumulation of G2 /M-phase cells.The real-time PCR and western blotting results indicated that the mRNA and protein expression levels of cyclin D1 ,CDK4 and p57 were increased in H/R-treated cells.IMD further stimulated this up-reg-ulated expression of cyclin D1 ,CDK4 and decreased the expression of p57 in NRK-52E cells.④Cyclin D1 had a predominantly nuclear localization in NRK-52Ecells,although cytoplasmic localization was also ob-served.Conclusion The study shows that the over-expression of IMD may promote renal cell proliferation and regeneration after renal tubular cell H/R injury via the up-regulation of cyclin D1 ,CDK and the down-reg-ulation of p57.

Phosphoethanolamine N-methyltransferase (PEAMT) is a key enzyme that catalyzes the synthesis of phosphocholine, which is an important precursor of phosphatidylcholine and glycine betaine. A 1249bp 5'-flanking region of phosphoethanolamine N-methyltransferase gene was isolated by anchored PCR, based on the cDNA sequence of PEAMT from halophyte Salicornia europaea. The transcription start site was identified as A and localized at 301bp upstream of the ATG according to the results of RLM-RACE. In SePEAMT promoter region, many potential cis-acting elements were predicted by PlantCARE and PLACE programs. Aside from the basal transcriptional elements TATA-box and CAAT-box, some stress-responsive motifs such as ABRE, HSE and LTR were found. In addition, some pollen-specific activation-related elements were also present in this region. Binary expression vector was constructed by fusing SePEAMT promoter with GUS gene and designated as pPro. The pPro was transferred into tobacco by Agrobacterium-medicated transformation and transient GUS expression analysis indicated that SePEAMT promoter could drive strong GUS expression.

Objective: To explore the impact of exercise rehabilitation on cardiac function in coronary artery disease (CAD) patients after percutaneous coronary intervention (PCI). Methods: A total of 130 CAD patients received primary PCI in our hospital from 2014-01 to 2015-09 were enrolled. All patients received conventional drug therapy and post-PCI knowledge education, then were randomly divided into 2 groups: Conventional group and Rehabilitation group, in which the patients received cardiac rehabilitation exercise for 3 months at different stage and intensity. n=65 in each group. The cardiac function including left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVEDD), 6 min walking distance (6MWD) and NYHA classification were compared between 2 groups at 1, 3 and 6 months after the operation. Results: LVEF, LVEDD, 6MWD and NYHA classification were similar between 2 groups at enrollment, P>0.05. ① At 1 month post-operation: 6MWD was different between 2 groups, P<0.05, while LVEF, LVEDD, NYHA classification and the recurrence rate of angina pectoris were similar between 2 groups, P>0.05. In Rehabilitation group, 6MWD and NYHA classification were different from the enrollment condition, P<0.05, while other parameters were similar, P>0.05; in Conventional group, 6MWD was different from the enrollment condition, P<0.05, while other parameters was similar, P>0.05. ② At 3 and 6 months post-operation: all parameters were different between 2 groups, P>0.05. In Rehabilitation group, all parameters were different from the enrollment condition, P<0.05. ③ In Conventional group, at 3 months post-operation: LVEDD and 6MWD were different from the enrollment condition, P<0.05; at 6 months post-operation: 6MWD was different from the enrollment condition, P<0.05. Conclusion: Exercise rehabilitation may improve the cardiac function, therefore enhance the endurance capacity and quality of life in CAD patients after PCI.

Objective To explore the risk factors of neonatal necrotizing enterocolitis(NEC)and assess the effect of prophylactic use of probiotics(Bifico)in prevention of NEC and observe changes of weight.Methods Five hundred and twenty-four cases of prematures who were inpatients were divided into 2 groups randomly(prevention group,n=276,no-prevention group,n=248)and the morbidity of NEC and the increase of eight during hospitalization were observed.A case-control study and conditional Logistic regression model multifactorial analysis were made to 20 cases NEC neonates and 80 cases non-NEC neonates.Results The prevention group(276 cases)had 5 cases of NEC and the average weight increase was(8.114?8.137)g/d,the no-prevention group 248 cases had 17 cases of NEC,and the average weight increase was(6.595?5.337)g/d.The occure rate of NEC in prevention group was significantly lower than that of no-prevention group(?2=5.57 P