1.Precise medicine of traumatic brain injury
Tianjin Medical Journal 2017;45(8):788-790
With the efforts of several generations, modern medicine has been from experience medicine and evidence-based medicine to the precise medicine. The precision medicine has also become a common goal for global clinical workers. However, traumatic brain injury involves a wide range and various types of injuries. The extent of the brain damage caused by trauma is complex. There is still a big gap between current medicine and precise medicine in the treatment of traumatic brain injury. Therefore, to achieve accurate, punctual, sharing and individualized precision medicine of traumatic brain injury, we must follow the objective routines of traumatic brain injury, and constantly improve the monitoring and treatment means of traumatic brain injury, and constantly improve the clinical research with globalization, multi-center, large data and prospection.
2.Significance of pathological changes and prognosis in chronic hepatic disease by assay of plasma level of neuropeptide Y
Journal of Jilin University(Medicine Edition) 2006;0(01):-
0. 05); but plasma levels of NPY in patients with hepatic cirrhosis and ascites or those with HRS had significant difference (P
3.Expression of vascular endothelial growth factor in proliferative maxillo-facial hemangioma of infant
Gang CHEN ; Ligang LIU ; Shengnan YAN
Chinese Journal of Medical Aesthetics and Cosmetology 2001;0(04):-
Objective To evaluate the relative quantities of flt-1, KDR, endostatin mRNA in tissue specimens of human hemangioma and great saphfenous vein with the modified reverse transcriptase-polymerase chain reaction (RT-PCR). Methods Total RNA from human specimens by Trizol was reverse-transcribed and amplified by PCR in 4 deffirent tubes containing one of the primer pairs such as flt-1, KDR, endostatin or ?-actin. The target genes and beta-actin PCR products were about 200 bp in length. The ratio of the yield of the target gene PCR product to the beta-actin PCR product could be calculated after 35 cycles of amplification.Results These ratios were correlated positively ( P=0.014,P=0.019) in two groups, but no relationship in endostatine level was observed (P=0.436).Conclusions VEGFR may play a very important role in the pathogenesis of the congenital hemangioma in children. But the endostatin may take little effect on it.
4.An efficacy evaluation of the PBL teaching in neurosurgical clinical training
Jie ZHOU ; Jian YOU ; Ligang CHEN
Chinese Journal of Medical Education Research 2015;(7):717-720
Objective To explore the effect and experience of problem-based (PBL) teaching in neurosurgical clinical training and improve the quality of the neurosurgical clinical training. Methods 600 clinical medical students of Grade 2011 in their probation in our department of neurosurgery were chosen as the subjects of study and were randomly divided into the experimental (PBL, 15 groups, 20 people/group, over 300 people) and control groups (CBL+ LBL, 15 groups, 20 people/group, over 300 people). In experimental group, PBL which is a problem-based, student-centered and teacher-directed pedagogy was adopted. In control group, CBL (case-based learning) + LBL (lecture-based learning) were adopted. After probation, two groups of students had the unified test and assessed their teaching methods by questionnaire survey and at the same time, the questionnaire survey about PBL' impact on the various aspects was done only to experimental group students. SPSS 15.0 software was used to do statistical analysis and data were processed by description analysis, t test, Mann-Whitney U test and correlation analysis. Results The scores of theoretical knowledge and general ability in PBL group [(40.57 ±3.24), (41.23 ±4.56) individually] were higher than these in control group [(37.21 ±4.05), (36.51±4.11) individually]. The differences demonstrated statistically meanings. Through the surveys, the students in experimental group showed the high satisfaction (97.0%, n=291) in PBL teaching. Most of the students considered that their abilities of team cooperation (96.7%, n=290), and self-directed learning (92.7%, n=278) were improved by PBL teaching. The students in experimental group illustrated their attitudes in satisfaction of teaching; interests of clinical training, participation of teaching and understanding of knowledge were superior to the control group. The differences demonstrated statisti-cally meanings. Conclusion PBL teaching got a good effect in neurosurgical clinical training. This method, which improved students' participation and motivation of study and contributed to the training of medical students' comprehensive abilities, is suitable for modern neurosurgical clinical training.
5.Effect of Elemene on Transcription Factor ELK1 and Its Target Gene of Human Cervix Cancer Hela Cell
Xiaojun CHEN ; Ligang GU ; Peiwen LI
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(01):-
Objective To study the effect of elemene on transcription factor ELK1 and its target gene in human cervix cancer Hela cell. Methods The cell proliferation was assessed by MTT assay. The luciferase activity of transcription factor ELK1 was determined by the Dual-Luciferase Reporter Assay System. The protein expression of phosphorated ELK1 and its target gene c-fos were determined by Western Blot. Results Elemene can remarkably inhibited the growth of Hela cell and its IC50 was 80.6 ?g/mL. The luciferase activity of transcription factor ELK1 in Hela cells treated with elemene was inhibited. The protein expression of phosphorated ELK1 and its target gene c-fos in Hela cells treated with elemene were down-regulated. Conclusion Elemene can inhibit human cervix cancer Hela cell proliferation,which may be related with suppression of c-fos gene through inhibiting expression of phosphorated ELK1.
6.Experimental Study on the Anti-inflammation Effect of 3,4-oxo-isopropylidene-shikimic Acid
Xiaojun CHEN ; Ligang GU ; Taiping SHI
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
Objective To study the effect of 3,4-oxo-isopropylidene-shikimic acid (ISA) on transcription factor STAT1, STAT3 and NF-?B in human cervix cancer Hela cell. Methods The cell proliferation was assessed by MTT assay. The luciferase activity of transcription factor STAT1, STAT3 and NF-?B was determined by the Dual-Luciferase Reporter Assay System. Results ISA can not inhibited the growth of Hela cell. The luciferase activity of transcription factor NF-?B in Hela cells treated with ISA was inhibited, while the luciferase activities of transcription factor STAT1 and STAT3 were not inhibited. Conclusion ISA can inhibit inflammation, which may be related with suppression of NF-?B transcriptional activity.
7.Reduction mammoplasty by central pedicle flap transposition
Ligang LIU ; Gang CHEN ; Jin WANG
Chinese Journal of Medical Aesthetics and Cosmetology 2002;0(02):-
Objective To explore a surgical procedure of reduction mammary plasty to assure the viability and sensory of the nipple-areolar complex (NAC) after transposition and to keep the lactiferous function partly. Methods Reduction was accomplished by using perforating vascular branches from the pectoralis major muscle and its fascia supplying the nipple and breast parenchyma instead of the subdermal plexus. The central vascular pedicle supplying the nipple-areola complex was preserved. And the sensory nerve of the NAC was not injured. The erection of the nipple could be observed in operation. Lactation was possible because of preservation of the lactiferous ducts. The technique had been used in 17 patients since 1996. Results The nipple-areola complex was safely transposed with great freedom, and the amount of resection was accurately adjusted for symmetry. No cases of nipple-areola complex sensory change occurred postoperatively in all 17 patients. Breast-feeding was possible at least in one patient after operation. Conclusion This method is ideal for the patients, which keeps the viability and sensory of the nipple-areolar complex and the function of lactation. In another case, the amount of resection is easily adjusted for symmetry.
8.EFFECT OF INTASPINAL IMPLANTATION OF MICROGENE pSVPoMcat GENETICALLY MODIFIED SCHWANN CELLS ON SPINAL CORD INJURY REPAIR IN RATS
Ligang CHEN ; Lida GAO ; Mi LU
Medical Journal of Chinese People's Liberation Army 1982;0(01):-
To observe the effect of intaspinal implantation of Schwann cells (SC) genetically modified with microgene pSVPoMcat on spinal cord injury (SCI) repair.120 SD rats were used to establish the hemisected spinal cord injury model at T 8 level,and they were divided randomly into three groups: genetically modified SC implantation group (group A),normal SC implantation group (group B) and control group without cell implantation (group C).One week after the operation ,combined behavioral score(CBS) and the cortical somatasensory evoked potential (GFAP) were measured and the expression of glial fibrillary acidic protein(GFAP) was examined by in situ hybridization and immunocytochemistry.Three months after the operation, all the rats were scanned with MRI and then were sacrificed.Neurofilament (NF) was examined with imunohistocytochemistry staining by using NF monoclonal antibody. Following were the results:(1) In group A,the number of cells expressed GFAP in injured sites was less than that in groups B and C.(2) MRI scanning showed that the SCI region almost recovered in group A but did not recover in group B.There was a malacie focus in SCI region in group C.This was corroborated by the NF staining.(3) The amplitudes of potential in the latent period in group A and B showed a tendency to recover,and it was consistent with CBS.The results suggested that the implantation of genetically modified SC with microgene pSVPoMcat could inhibit GFAP expression and promote the functional recovery of spinal cord injury in rats.
9.The clinical comparison of treatment with Adjustable shunt valve and Standard shunt valve for children with Communicating hydrocephalus
Luotong LIU ; Kunliang HUO ; Yang MING ; Jie ZHOU ; Ligang CHEN
Chinese Journal of Nervous and Mental Diseases 2014;(4):230-233
Objective To explore the advantages and application of adjustable shunt valve in treatment of chil-dren with Communicating hydrocephalus. Methods Eighty six consecutive children undergoing surgery treatment for Communicating hydrocephalus from January 2006 to July 2011 were included in this retrospective study. Fifty cases re-ceived adjustable shunt valve whereas the rest received standard shunt valve. Results The success rate was 84.00% in the adjustable shunt valve group and 63.89%in the standard shunt valve group. Complication rate was 16.00%in the ad-justable shunt valve group and 36.11% in the standard shunt valve group. Inadequate and excessive shunt rate was 69.23% in the standard shunt valve group and zero% in adjustable shunt valve group. Compared with standard shunt valve group, adjustable shunt valve group had significantly higher success rate and lower complication rate (All P<0.05). Conclusions Adjustable shunt valve effectively reduce the complication rate and improve the success rate. In addition, adjustable shunt valve is superior to standard shunt valve in the treatment of children with communicating hydrocephalus because it fits for the development of children.
10.Protective Effects of Intracord Transplantation of pSVPoMcat Modified Schwann Cells on Spinal Cord Injury
Ligang CHEN ; Lida GAO ; Fangjun ZENG ; Boyong MAO
Chinese Journal of Tissue Engineering Research 2001;5(12):154-155
Objective To study the protective effects of the intracord transplantation of microgene pSVPoMcat- genetically- modified Schwann cells (MSCs)on spinal cord injury (SCI).Method Rats with semi- division(SD) of the spinal cord was divided into 4 groups.Group S consisted of the rats with SD treated with the transplantation of MSCs, Group B of the rats with SD treated with the transplantation of SCs without genetic modification,Group C of the rats with SD without treatment and Group D was the normal control. 8 hours after operation,the half of the rats of each group were killed and the injured segment of the spinal cord was resected to be examined with atomic absorption spectrophotometry . Another half of the rats of all the groups were examined with neurological function tests to have a combined behavioral score (CBS).Result There was a significant increase of water content and Na+ and Ca2+ ions and a decrease of K+ and Mg 2+ ions in the injured cord segment of Group C and a statistically significant recovery was observed in Group A. The intracord transplantation of pSVPoMcat genetically modidied SCs improved the neurological outcome of spinal cord injury.Conclusion Our findings indicate that intracord transplantation of pSVPoMcat- genetically- modified- Schwanncells exerts protective effects on the injured segment of the spinal cord through the improvement of the internal ion environment of the spinal cord.