1.Clinical observation of gammaglobulin therapy for septicemia in premature infants
Zhijie YE ; Shouju MA ; Haifeng CHU
Clinical Medicine of China 2001;17(4):320-321
Objective To investigate the therapeutic effects of intravenous gammaglobulin (IVIG) on septicemia in premature infants.Methods The level of sero-IgG was observed in 20 septicemic premature infants before and after IVIG treatment,compared with those of 20 cases without IVIG treatment as controls.Results After IVIG treatment,the level of sero-IgG was remarkably higher than those before IVIG treatment and controls.Conclusion It is suggested that IVIG is safe and effective for treatment of septicemia in premature infants.
2.STUDIES ON CONDITIONS OF CELL HIGH DENSITY CULTIVATION FOR GENETICALLY ENGINEERED METHYLOTROPHIC PICHIA PASTORIS
Meijin GUO ; Kanhua WU ; Haifeng HANG ; Ju CHU ; Yingping ZHUANG ; Siliang ZHANG ;
Microbiology 1992;0(03):-
Recently the methylotrophic Pichia pastoris,with many advantages such as high expression,stable genetics and protein secretion,has been used extensively as a host expressing heterologous proteins.The optimal seed medium among seven media MM,MD,MGY,BMGY,YMPD,YMPGy and MGyB is BMGY with addition of 4mL/L PTM1 The high density synthesized medium in shake flask culture is as follows: Glycerol 4%(NH 4) 2SO 4 10g/L,CaSO 4 0.93g/L,K 2SO 4 18 2g/L,MgSO 4?7H 2O 14 9g/L,add 0.1mol/L PBS(pH=6 0) to 1 0 liter.The harvested yeast cell optical density (OD 600 ) reached 65 or more after 26 hours cultivation.By analysis of SDS\|PAGE,the results of Pichia pastoris culture by methanol inducement for 72 hours showed that the expression of recombinant human serum albumin had been achieved by methanol inducement after 12 hours,and the mount of targeted protein reached the summit after 24 hours inducement by methanol.The high density synthesized medium in shake flask culture in this experiment,which is similar to the mediums of batch fermentation and batch\|fed fermentation,is benefit to direct the P.pastoris fermentation in the fermentor.
3.Effects of Myelotomy on Autophagy in Injured Spinal Cord in Rats
Degang YANG ; Jianjun LI ; Mingliang YANG ; Liangjie DU ; Anming HU ; Rui GU ; Liang CHEN ; Hongyu CHU ; Xiandi ZHANG ; Haifeng WU
Chinese Journal of Rehabilitation Theory and Practice 2015;21(4):382-386
Objective To observe the effects of myelotomy on autophagy activation after traumatic spinal cord injury (SCI) in rats. Methods 54 adult female Sprague-Dawley rats were randomly assigned to sham-operated group (SG, n=18), contusion group (CG, n=18) or myelotomy group (MTG, n=18). The T10 SCI model in rats was induced with a New York University (NYU) impactor and myelotomy was performed 24 hours after SCI. They were evaluated with the BBB score 1, 7, 14 days after injury. The expression of mRNA of Beclin-1 and Bcl-2 were detected with real-time quantitative reverse transcriptase polymerase chain reaction (RT-PCR). The formation of autophagosome was investigated under electronic microscope (EM) 3 days after injury. Results BBB score was more in the MTG than in the CG 7 and 14 days after injury (P<0.05), while the expression of Beclin-1 mRNA was less (P<0.05). The expression of Bcl-2 mRNA was more in the MTG than in the CG 3 and 7 days after injury (P<0.05). The expression of Beclin-1 mRNA was negatively correlated with BBB scores (P< 0.05). The formation of autophagosome was less in the MTG than in the CG. Conclusion Myelotomy can improve the recovery of motor function in rats after acute traumatic SCI, which may associate with neuroprotection mediated by inhibition of autophagy through the Bcl-2 signaling pathway.
4.Operation and Administration of Rehabilitation Institutions in China
Zhongxiang MI ; Qiuchen HUANG ; Fei LIU ; Jianjun LI ; Jun CHENG ; Zhiru CUI ; Pei LI ; Haifeng SHI ; Hao DONG ; Ailing ZHU ; Baohua WANG ; Xiaoyue ZHOU ; Wen BAO ; Didi LU ; Ying LI ; Tianyi CHU ; Mengmeng WANG
Chinese Journal of Rehabilitation Theory and Practice 2015;(1):103-105
How to give full play to the advantages of rehabilitation institutions, and to improve service quality and administration efficiency are some of the complex issues faced by the high-level administrators of rehabilitation institutions. This paper studied a total of 67 institutions to investigate the operation and management model of rehabilitation institutions in China, as well as their advantages and disadvantages.
5.Efficient Performance Management System of Medical Rehabilitation in China
Jun CHENG ; Zhongxiang MI ; Zhiru CUI ; Jianjun LI ; Pei LI ; Haifeng SHI ; Hao DONG ; Ailing ZHU ; Baohua WANG ; Xiaoyue ZHOU ; Wen BAO ; Qiuchen HUANG ; Fei LIU ; Ying LI ; Didi LU ; Tianyi CHU ; Mengmeng WANG
Chinese Journal of Rehabilitation Theory and Practice 2015;(1):106-108
The establishment of an efficient performance management system is crucial for a rehabilitation institution. This article discussed the concept of performance, performance management and ways to establish an efficient performance management system.
6.A surgical classification system for the management of axial primary malignant and aggressive benign tumors and its application in multiple tertiary centers
Nanzhe ZHONG ; Feng LI ; Jinglong YAN ; Tongwei CHU ; Jian YANG ; Chen YE ; Shaohui HE ; Minglei YANG ; Jian JIAO ; Wei XU ; Haifeng WEI ; Tielong LIU ; Jian ZHAO ; Zhipeng WU ; Cheng YANG ; Xinghai YANG ; Jianru XIAO
Chinese Journal of Orthopaedics 2020;40(11):689-699
Objective:To propose and verify a surgical classification system for the axial primary malignant and aggressive benign tumor.Methods:The CZH surgical classification system was originally developed for the axial primary malignant and aggressive benign tumor. The CZH surgical classification system includes seven types, according to the anatomic features and the extension of tumor violation. A total of 136 patients (79 males and 57 females) with axial primary malignant and aggressive benign tumor from multiple tertiary centers who received surgery from July 2006 to July 2019 were included. The average age was 44.40±17.55 years (8-83 years) old. There were 99 malignant tumors and 37 aggressive benign tumors included. The number of patients with each classification was presented as followed, Type I 13, Type II 15, Type IIIa 3, Type IIIb 20, Type IVa 43, Type IVb 12, Type Va 21, Type Vb 3, Type VI 2, Type VIIa 3 and Type VIIb 1. Surgical procedures were selected according to different types in classification. The inter- and intra-observer consistencies were evaluated by the Kendall's W test. The VAS, Frankel score, overall survival and recurrence free survival were recorded during the follow-up. Results:The inter- and intra-observer consistent coefficient was 0.973 and 0.996, respectively ( P<0.05). The single posterior approach was adopted for the Type II tumors. Other patients underwent surgery by the combined antero-posterior approach. The majority in anterior approach (113 cases) was the modified submandibular approach. The reconstruction modes included anterior "T" shape titanium mesh (112 cases) or the 3D printed prothesis (7 cases) combined with the posterior occipto-cervical fusion (92 cases) or the pedicle screw system (44 cases). The average surgical duration and the volume of intraoperative bleeding was 348.40±136.14 min (60-760 min) and 1 225.69±859.40 ml (80-4 000 ml), respectively. The operation duration and volume of intraoperative bleeding among each type were with statistical difference. The patients with Type IV, V tumors had longer operation duration than those with Type II tumors. Those with Type V and VII tumors had longer operation duration than those with Type I tumors. The patients with Type V tumors had more intraoperative bleeding than those with Type I-IV tumors. The average preoperative VAS score was 4.15±2.25 and then was reduced significantly to 0.62±0.71 and 0.38±0.59 at one and three months after operation, respectively. The Frankel score was also significantly ameliorated at one and three months postoperatively. There were 22 postoperative complications (16.2%). The complications included cerebral spinal fluid leak (12.5%), dysphagia and/or dysphonia (7.4%), dyspnea (5.1%), wound infection (3.7%), wound hemorrhage (2.2%) and pharyngeal dehiscence (1.5%). The incidence of postoperative complication was 25.9% in Type IV-VII tumors, while 11.8% in Type I-III tumors. Conclusion:CZH surgical classification system was verified with high observer consistency. This classification system could assist surgeons to select proper surgical approaches, resection modes and reconstruction modes, and thus ensure the safety of surgery and reduce the recurrence. The tumors in Type IV, V and VII may be with more challenging for surgeons. The incidence of postoperative complication in Type IV-VII tumors may be higher than that in Type I-III tumors.