Effect of inhaling NO perioperatively on postoperative cardiac and pulmonary functions in infants with congenital ventricular septal defect complicated / 中国胸心血管外科临床杂志

@#Objective    To investigate the effect of low-flow inhaling NO for short time on postoperative cardiac and pulmonary functions in infants with congenital ventricular septal defect complicated with severe pulmonary hypertension. Methods    Forty-five patients with congenital ventricular septal defect complicated with severe pulmonary hypertension from May 2014 to May 2016 in our hospital were enrolled. There were 19 males and 26 females, whose age ranged from 1 to 22 months (average age: 7.2±14.4 months) and weight ranged from 2.7 to 10.5 kg (average weight: 6.8±3.6 kg). The patients were randomly divided into three groups (n=15 in each): the blank group, the prior inhalation group and the posterior inhalation group. The blank group did not inhale NO, and the prior inhalation group inhalated NO for 10 min after tracheal and intubation. After the opening of the aorta, the posterior inhalation group inhaled NO for 10 min. The concentration of NO was 20 × 10–6. The pressure ratio of pulmonary circulation/systematic circulation, heart index and oxygenation index were calculated and the troponin value of the three groups was monitored 10 min after returning to intensive care unit (ICU) and postoperatively 1 h, 3 h and 24 h. Differences among above indicators between three groups were compared. Results    The troponin value of the posterior inhalation group within 3 h increased most, followed by the blank group and the prior inhalation group. Postoperatively 1 h and 3 h, the troponin value of the prior inhalation group was significantly less than that of the blank group and posterior inhalation group (P<0.01) and the value on postoperative 24 h in each group was lower than that on postoperative 3 h. The cardiac index of prior inhalation group was higher than that of the blank group and the posterior inhalation group at each time point. Postoperatively 3 h and 24 h as well as 10 min after returning to ICU, the cardiac index in prior inhalation group was significantly higher than that of the posterior inhalation group (P<0.05). The pressure ratio of pulmonary circulation/systematic circulation of posterior inhalation group increased more than that of blank group; the differences in two groups were significant between postoperative 3 h and 10 min after returning to ICU (P<0.01). There was no statistical significance in the pressure ratio on postoperative 24 h and 10 min after returning to ICU (P>0.05) in three groups. The index of oxygenation of the prior inhalation group was higher than that of the blank group and the posterior inhalation group and statistically different from that of posterior inhalation group (P<0.05). Conclusion    Inhaling NO 10 min preoperatively can reduce the injury to the heart and lung function effectively, but the result is the opposite when inhalating NO 10 min after aorta opening.

Completed surgical treatment with double outlet of right ventricle / 中华胸心血管外科杂志

Objective To summarize the experiences and results of completed surgical treatment for double outlet of right ventricle in 135 cases.Methods From May 2007 to May 2012,135 cases with double outlet of the right ventricle,males are 79 cases,female are 56 cases,age from 25 days to 12 years,weigh is 3.5-30.0 kg,underwent surgical procedure.There were 89 cases subaortic ventricular septal defect,33 cases doubly committed ventricular septal defect,repaired VSD with introventricular tunnel and relive right ventricle outflow tract directly with pericardial patch.There are 8 cases subpulmonary (Taussing-Bing)VSD,5 received Rastelli procedure,3 received arterial switch procedure and repaird VSD.There are 5 cases noncommited VSD,3 received Rastelli procedure,2 received arterial switch procedure and repaired VSD.Results Four cases died in the early postoperative period,with a mortality of 3.70％.1 case with subpulmonary VSD was performed arterial switch procedure and repaired VSD.1 case with noncommited VSD,2 cases with subaortic VSD(with pulmonary stenosis) were performed repaired VSD with introventricular tunnel and relive right ventricle outflow tract directly with pericardial patch.1 case with noncommited VSD was performed Rastelli procedure.Conclusion The anatomic type,especially the position of ventricular septal defect,correlates with surgical strategy significantly.

Biotransformation of podophyllotoxin by cell suspension and root culture systems of Rheum palmatum / 中草药

Objective To investigate the biotransformation of podophyllotoxin by cell suspension culture and root culture systems of Rheum palmatum.Methods Plant tissue culture technology was employed.The products were isolated by silica gel column chromatography and their structures were elucidated by spectral methods.Results Adding of podophyllotoxin had no obvious effects on the pH value of cell suspension culture and root culture systems of R.palmatum.In the case of present study,73.8% of podophyllotoxin was converted by cell suspension culture and 56.3% by root culture.The products were different between the two culture system.Podophyllotoxin was converted into picropodophyllin with cell suspension culture system and many other products besides epipodophyllotoxin with root culture system.Conclusion Both of cell suspension culture and root culture systems of R.palmatum are able to convert podophyllotoxin.

Effect of various media on quality of hairy root clones of Rheum palmatum / 中草药

Objective To study the effect of optimized media and clones on growth and anthraquinone yield in hairy root cultures of Rheum palmatum.Methods The four monoclones and four media were optimized statistically for studying the effect on the biomass accumulation and five anthraquinones yield in hairy root cultures of R.palmatum.Results Significant differences in biomass were shown among various clones and media,in which monoclone DH7a was the highest and WP medium was the best.Chrysophanol and physcion were predominant among five free anthraquinones in hairy root cultures of R.palmatum.Notable differences of total five free anthraquinones yield were observed among different clones, in which DH7a was the highest.Reciprocity analysis showed that the highest yield of five free anthraquinones is in the combinations of DH7a with B5 medium.DH5a less and DH5a the least with WP medium,DH7a and B5 medium were predominent for the yield of above five free anthraquinones with exception of DH5c which has no significant difference in four media.Conclusion The study lays the foundation for mass production of anthraquinone by hairy root culture of R.palmatum.

Effect of phytohormones and elicitors on growth and anthraquinone production of Cassia obtusifolia hairy roots / 中草药

Objective To study the effects of phytohormones and elicitors on the growth and anthraquinone production of Cassia obtusifolia hairy roots. Methods Blades and petioles of C. obtusifolia〖WTBZ〗 were infected with Agrobacterium rhizogenes LBA9402 and the in vitro culture system of the hairy root was established. Results Hairy roots were induced by A. rhizogenes LBA9402. The results showed that the addition of 0.5% NAA to the hairy roots increased the content of five kinds of anthraquinones by four times, and Aspergillus niger elicitor had no much effect and JA had slightly inhibitory effect on root growth, but both of them significantly promoted the anthraquinone accumulation, the anthraquinone yield increased more than two times with the treatment of 2.0 mL elicitor/50 mL medium and by 73% with the treatment of 10 ?mol/L jasmin acid (JA), respectively. JA had little inhibitory effect on the growth of fairy roots. Conclusion The fundation has been established for further oplimizing the proper cultural system for C. obtusifolia hairy roots and regulating the secondary melabolite.

Effect of rare-earth elements La3+ on growth of hairy roots and normal roots of Rheum palmatum and their yield of anthraquinone / 中草药

Object To study the effect of rare-earth elements La3+ on growth of hairy roots and normal roots of Rheum palmatum L and their yield of anthraquinones. Methods The biomass and an- thraquinone yield of two hairy clones DH5c, DH7a, and normal root NOR cultures of R. palmatum were evaluated statistically after various concentration of La3+ were administrated into culture medium. Results Significant differences of biomass yield and anthraquinone yield were shown among six La3+ concentrations, in which 10 mg/L showed obvious inhibitory effect for root growth and 1. 0 mg/L was the best for anthraquinone yield. In general, aloe-emodin and rhein were predominant in five anthraquinones after treated with the rare-earth element. Conclusion The growth of hairy root cultures of R. palmatum and their anthraquinone yield are greatly promoted by addition of La3+ to the medium.