2. Influence of sulfur-fumigation on pharmacokinetic of peimine and peiminine of Fritillaria thunbergii in rat
Chinese Traditional and Herbal Drugs 2017;48(13):2691-2696
Objective: To study the influence of sulfur-fumigation on pharmacokinetic of peimine and peiminine of Fritillaria thunbergii in rat plasma by LC-MS/MS. Methods: After random grouping, 18 SD rats were given the solution of fresh-cut and sulfur-fumigated F. thunbergii by ig administration. The blood drug concentration of peimine and peiminine in rat plasma was determined by HPLC-MS/MS, and the pharmacokinetic parameters were calculated with 3P97 software. Results: The pharmacokinetic parameters of peimine and peiminine of sulfur-fumigated F. thunbergii in rat plasma were (66.40 ± 4.65), (146.72 ± 10.88) ng/mL for Cmax, and (181.79 ± 7.85), (457.38 ± 58.81) ng∙h/mL for AUC, respectively. Those of fresh-cut sample in rat plasma were (186.37 ± 18.8), (227.65 ± 7.01) ng/mL for Cmax, and (197.70 ± 18.69), (566.16 ± 41.55) ng∙h/mL for AUC, respectively. The pharmacokinetic parameters of perimine and peiminine of sulfur-fumigated sample in rat plasma were less than those of fresh-cut sample. Conclusion: The results showed that sulfur-fumigation decreased the bioavailability of peimine and peiminine. This study could provide a basis for further clarifying the influence of sulfur-fumigation on efficacy material base of F.thunbergii.
4.Isolation, culture and surface markers detection of human umbilical cord mesenchymal stem cells
Kai FENG ; Li XIAO ; Xihui MA ; Yu GAO ; Xiangrui KONG
Journal of Leukemia & Lymphoma 2013;22(6):354-356
Objective To investigate the methods of isolation and culture in vitro and detect the surface markers of human umbilical cord mesenchymal stem cells.Methods Human umbilical cord Wharton' s jelly was separated and cut up as small as possible,and then cultured with α-MEM.Human umbilical cord mesenchymal stem cells could be obtained by culturing the tissue block adhered the bottle wall.And the cells were passaged at a certain density.The surface markers of human umbilical cord mesenchymal stem cells were detected by FACS when the cells were in Generation Three.Results Human umbilical cord mesenchymal stem cells were obtained from Wharton' s jelly conveniently,with fibroblast shape and stable proliferation and passage.CD29,CD44,CD105 were strongly expressed on human umbilical cord mesenchymal stem cells.But CD45,CD34,HLA-DR,HLA-G,CD80,CDs6 were not expressed.Conclusion Human umbilical cord mesenchymal stem cells can be obtained effectively from the culture of the tissue block,which provides a rich source of cells for tissue engineering.
5.Application of extracorporeal membrane oxygenation in neonatal respiratory failure
Xiaoyang HONG ; Gengxu ZHOU ; Qiuping LI ; Xiangyong KONG ; Zhichun FENG
Chinese Pediatric Emergency Medicine 2014;21(10):629-632
Extracorporeal membrane oxygenation(ECMO) is a kind of extra life support technique that can support cardiac and pulmonary function in a relatively long time.With the application of nitric oxide,pulmonary surfactant and high frequency ventilation,the use of ECMO in neonatal respiratory failure decreased.Although received these treatment,there are some newborn with respiratory failure still required ECMO at last.On this paper,the application of ECMO in neonatal respiratory failure from foreign medical institute was introduced,and compared with the domestic situation,in order to improve the application of ECMO in neonatal respiratory failure.
6.Influence of noninvasive ventilator in the treatment of plasma C-reactive protein , endothelin-1 and tumor necrosis factor-α in patients with obstructive sleep apneahypopnea syndrome
Qinghua MENG ; Chenghong LI ; Cheng JIANG ; Bin KONG ; Qiong FENG
The Journal of Practical Medicine 2015;31(23):3861-3863
Objective To investigate the effect of noninvasive ventilator therapy on serum C-reactive protein (CRP), endothelin-1 (ET-1) and tumor necrosis factor-α (TNF-α) levels in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) and its clinical significance. Methods One hundred cases of moder-ate and severe OSAHS patients were selected by the method of parallel opening. All of the patients were given health education requirement , quitting smoking and wine , low fat diet and exercise to lose weight and other con-ventional treatment. The patients were randomly divided into the treatment group of 42 cases with noninvasive ventilator treatment , 44 cases treated with conventional treatment , to observe the changes of serum CRP , ET-1 and TNF-α levels and PSG parameters after 12 weeks in two groups. Results Apnea hypopnea index (AHI), oxygen desaturation index (ODI), the lowest oxygen saturation (LSpO2), and the average oxygen saturation MSpO2 in OSAHS patients were significantly improved after treatment (P < 0.01), but the degree of improvement in the two groups after treatment was significantly higher than the control group (P < 0.01). Plasma CRP, ET-1 and TNF-α levels in the two groups after treatment were lower than before treatment (P < 0.05 or P < 0.01), but the treatment group was significantly higher than that of the control group ( P < 0 . 05 or P < 0 . 01 ) . Conclusion Noninvasive ventilator therapy in improving the OSAHS monitoring data of patients with PSG can effectively reduce the serum CRP, TNF-α, ET-1 level, reduce the body′s inflammatory reaction.
7.Living donor liver transplantation for end-stage liver disease
Xuehao WANG ; Feng ZHANG ; Xiangcheng LI ; Lianbao KONG ; Beicheng SUN ; Guoqiang LI ; Feng CHENG ; Ling Lü
Chinese Journal of Digestive Surgery 2008;7(2):89-91
objective To investigate preoperative donor and recipient assessment,choice of surgical options in living donor liver transplantation(LDLT).Methods The clinical data of 95 patients who underwent LDLT from January 1995 to October 2007 in our center were retrospectively analyzed.Of all,92 recipients were benign end-stage liver disease patients (including 45 patients with Wilson disease),and 3 were malignant hepatic carcinbma patients.Results Thirty-one fight lobes without middle hepatic vein(MHV),3 right lobes with MHV,51 left lobes with MHV.and 10 left lobes or left lateral lobes without MHV were obtained.All the donors recovered after operation. Recipients with benign end-stage liver disease were followed up for 1 to 86 months,and the 1-,3-,5-year accumulative survival rates were 89%(82 cases),78%(71 cases)and 73%(67 cases),respectively. The 1-,3-,5-year survival rates of patients with Wilson disease were 92%(42 cases),89%(40 cases)and 76%(34 cases),respectively. For the 3 patients with malignant hepatic carcinoma,2 died and 1 was alive and well. The copper metabolism was back to normal in both donors and recipients. Conclusions Establishment of a system for the safety of donors is basic for LDLT. The key to raise the recipients' survival rates is to choose the optimal surgical approach. LDLT is effective in treating Wilson disease.
8.Clinical characteristics of long-term oxygen dependent neonates
Qiuping LI ; Xiangyong KONG ; Xiaojuan YIN ; Zizhen WANG ; Mingxia SHANG ; Li ZHOU ; Jing XU ; Zhichun FENG
Chinese Pediatric Emergency Medicine 2012;19(2):139-143
Objective To investigate the situation of oxygen supplement and the incidence and clinical characteristics of long-term oxygen inhalation newborns in neonatal intensive care unit(NICU).Methods The records of oxygen supplement and the related clinical data of 12 155 neonates admitted in our NICU from Oct 2009 to May 2011 were collected and retrospectively analyzed.The results were compared with the data from a survey on 19 hospitals in China which reported by other authors.Results In 12 155 newborns,4 951 were full term,7 204 were preterm.One hundred and two patients (0.84%,102/12 155 ) accepted oxygen for more than 28 days.Among them,88 were preterm,14 were full term,with the average gestational age (31.16 ±3.70) weeks,the average birth weight (1.60 ±0.68) kg and the mean oxygen supplement period (40.60 ± 12.25) d.Finally,98 were cured or improved,4 died.The incidence of bronchopulmonary dysplasia (BPD) in 7 204 preterm infants was 1.22% ( 88/7 204) according to the standard of continuous oxygen supply more than 28 days after birth.The incidence of BPD in preterm infants less than 32 weeks was 4.92% (68/1 381 ) according to the standard of continuous oxygen supply more than 28 days after birth,while the rate was only 2.10% (29/1 381 ) according to the standard of continuous oxygen supply more than 36 weeks postmenstrual age.The rates of BPD according to the two different standards were significantly different ( x2 =16.251,P <0.001 ).There were significant differences in the rate of supply oxygen( x2 =119.99) and supply oxygen time( F =109.27 ) among different gestational age groups in overall the 5 499 neonates ( P <0.001 ),but no significant differences in the average time of oxygen supply and mechanical ventilation among different gestational age groups in infants with long-term oxygen dependence ( P > 0.05 ).There were significant differences in rates of pulmonary surfactant therapy,heart failure,retinopathy of prematurity,congenital heart disease,other congenital malformation and mortality among different gestational age groups in long-term oxygen dependence infants (x2 =8.789,13.538,23.176,7.778,8.842,8.246,P < 0.05 ).As compared with the data from 19 hospitals,the corrected rate of long-term oxygen supplement in preterm infants in our hospital was obviously lower[0.99% (71/7204) vsl.54% (190/12 351),P <0.001].Conclusion Theincidence of BPD in our NICU is low.Lower gestational age,immature lung and secondary lung injury may be the mainly cause of neonatal long-term oxygen dependence,but some factors such as congenital heart disease,congenital malformations should be considered in more mature infants.The most appropriate standard for BPD still remains to be discussed.
9.Early enteral nutritional support in patients of liver transplantation
Zhengshan WU ; Xuehao WANG ; Feng ZHANG ; Xiangcheng LI ; Lianbao KONG ; Jun LI
Chinese Journal of General Surgery 1993;0(01):-
Objective To evaluate early enteral nutrition in patients after liver transplantation. Methods This is a prospective, randomized trial consisting of 63 patients divided into two groups to receive TPN and early enteral nutrition respectively for a week. Patients' nutritional status, liver function, nutritional expense and the incidence of postoperative infections and other complications were compared between the two groups. Result Early enteral nutrition after liver transplantation can improve the nutritional condition and it is helpful for the recovery of the liver function. It decreases the rate of postoperative infections and other complications. Conclusions Early enteral nutritional support is feasible alternative to TPN in patients of liver transplantation.
10.Value of lung ultrasound on diagnosing transient tachypnea of newborn
Jing LIU ; Haiying CAO ; Shuiwen CHEN ; Xiangyong KONG ; Qiuping LI ; Lihua LI ; Zhichun FENG
Chinese Journal of Applied Clinical Pediatrics 2016;(2):93-96
Objective To evaluate the diagnostic value of lung ultrasonography for transient tachypnea of new-born (TTN).Methods From January to December 201 4,a total of 1 358 children were hospitalized in the Neonatal Intensive Care Center and underwent lung ultrasonography at the Bayi Children′s Hospital,Beijing Military General Hospital.According to the patients′medical histories,clinical presentations,arterial blood gas analysis,chest X -ray examinations,and lung ultrasound examinations,there were 41 2 cases of patients without pulmonary lesions,228 cases of TTN,358 cases of respiratory distress syndrome (RDS),85 cases of meconium aspiration syndrome (MAS),21 5 ca-ses of infectious pneumonia,and 60 other cases at the time of hospital admission.In a resting state,the patients were placed in a supine,lateral recumbent or prone position.By using the anterior and posterior axillary lines as boundaries, the lung was divided into 3 regions:anterior,lateral,and posterior.The probe was perpendicular or parallel to the ribs, and each region of both sides of the lung was scanned.The scan results were compared to the conventional chest X -ray results.Results The main ultrasonic characteristics of TTN was pulmonary edema.In severe cases,the ultrasound showed a white lung or compact B -line.Compact B -line had 1 00.0% sensitivity and 95.3% specificity for diagno-sing severe TTN.Mild TTN presented as pulmonary interstitial syndrome or double lung point.Double lung point might appear during the recovery period of mild TTN or other diseases,such as RDS,MAS,and pneumonia,among others. Lung consolidation and air bronchogram were not observed in patients with TTN.Pleural effusion might occur in a varie-ty of lung diseases,and pleural line abnormality,A -line disappearance,and B -line or pulmonary interstitial syndrome were common ultrasonic manifestations of a variety of lung diseases.Conclusions Ultrasonic diagnosis of TTN,mainly based on pulmonary edema without lung consolidation and air bronchogram,is accuracy and reliable;however,double lung point is not a specific sign of TTN,whereas the identification of a white lung and compact B -line is a sensitive and specific sign of severe TTN.