1.Lumbar spinal implants for degenerative lumbar spondylolisthesis: biocompatibility evaluation
Chinese Journal of Tissue Engineering Research 2015;19(16):2608-2612
BACKGROUND:Spinal internal fixation is widely used in the treatment of lumbar spondylolisthesis, with the purpose of lumbar fusion, reconstruction of lumbar sagittal sequences, relieving spinal cord or nerve root compression. OBJECTIVE:To review the biocompatibility of lumbar spinal implants applied in the treatment of degenerative lumbar spondylolisthesis. METHODS:A computer-based retrieval of PubMed and CNKI was performed for relevant articles published from January 2000 to January 2015. The keywords were biocompatibility, degenerative lumbar spondylolisthesis, implant in English and Chinese, respectively, which appeared in the title and abstract. RESULTS AND CONCLUSION:Lumbar spinal implants commonly used include pedicle screws and interbody fusion cages. The fusion cages are mainly classified as biological fusion cage, metal fusion cage, composite fusion cage and absorbable fusion cage. Internal fixation implants made of different materials have different biocompatibilities, but also develop different stabilities. With the development of bionics, 3D printing technology, biomechanics and materials science, lumbar spinal implants wil have better biocompatibility, bone substitute capability and biomechanical properties.
2.Detection of Mycobacterial16S rRNA Gene and M.tuberculosis DNA in Skin Lesions of Sarcoidosis with Polymerase Chain Reaction
Chinese Journal of Dermatology 1995;0(04):-
Objective To investigate the possible role of mycobacterial infection in the pathogenesis of sarcoidosis.Methods DNA fragments of mycobacterial16S rRNA gene and the complex-specific insertion sequence IS6110of M.tuberculosis were detected by polymerase chain reaction(PCR)in formalin-fixed,paraffin-embeded skin biopsy specimens from12patients with sarcoidosis.Results Mycobacterial common sequence16S rRNA gene was found in6patients,among which5were further confirmed as M.tuberculosis,the other one was atypical mycobacteria.The IS6110DNA fragment amplified by PCR was confirmed by DNA sequencing.Conclusion The above findings suggest an aetiological role of mycobacterial infection,especially M.tuberculosis,in some patients with sarcoidosis.
3.Cloning of Human Ro60 cDNA and Construction of Baculovirus Expression Vector
Chinese Journal of Dermatology 1994;0(02):-
Objective To construct a baculovirus expression vector for expression of human Ro60 cDNA. Methods Ro60 cDNA was cloned from Hela cell RNA with RT-PCR and was inserted into plasmid pFastBac HTc. Plasmid pFastBac HTc-Ro60 was then transformed into E. coli DH10Bac competent cells for transposition. The constructed recombinant was determined by both blue-white colony screening and PCR analysis. Results A 1.56kb Ro60 cDNA was obtained from Hela cell RNA and was successfully inserted to plasmid pFastBac HTc. DNA sequencing and restriction enzyme analysis revealed that both open reading frame and sequence of the cDNA were identical to Ro60 sequence previously published. Specific transposition and virus recombination were obtained in the vector Bacmid-Ro60. Conclusion Ro60 cDNA has been successfully cloned and constructed to baculovirus expression vector, which is useful for protein expression and further study of this autoantigen in the pathogenesis of lupus erythematosus.
4.Relation between sesamoid position of hallux and the function of metatarsophalangeal joints
Orthopedic Journal of China 2006;0(07):-
[Objective]To discuss the alterations of sesamoid position before and after opertation and its relation to the function of the metatarsophalangeal joints.[Methods]Eighty feet(39 hallux valgus feet,41 normal foot) were selected.The distance from sesamoids to the second metatarsal,the relative position of sesamoid bone to the first metatarsal bone,the function of the first metatarsophalangeal joints were determined and analyzed.[Results]The distance from sesamoid to the second metatarsal had no statistical significance in normal feet compared with the hallux valgus feet(P
5.Detection and identification of Mycobacteria with polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP)from patients with Mycobacterial skin infections
Journal of Peking University(Health Sciences) 2003;0(05):-
Objective: To establish a rapid approach to the detection and identification of Mycobacteria from lesions of patients with suspected Mycobacterial infections. Methods: Specimens were obtained from five patients suspected to have Mycobacterial infections. DNA extracted from clinical samples was amplified by nested PCR. The PCR products were digested with Hha Ⅰ, MboⅠ, and BstUⅠ restriction enzymes and applied to PAGE. The species of Mycobacteria were determined by restriction fragment length polymorphism (RFLP) analysis. Identification of Mycobacteria culture was also performed in 3 patients. Results: M. marinum was found in two patients diagnosed as swimming pool granuloma. M. tuberculosis was found in one patient diagnosed as infectious skin granuloma. All these 3 Mycobacteria were confirmed by Mycobacteria culture. A strain of M. tuberculosis and a strain of M. fortuitum were detected in remain two patients. Conclusion: The results above indicate that PCR-RFLP analysis is rapid and reliable in detection and identification of different Mycobacteria species from skin tissues. Application of this method will be helpful for early diagnosis and treatment of Mycobacteria skin infections.
6.Effect of intrathecal injection with Rocephin on intracranial infection
Jianhong ZHANG ; Jianzhong FAN
Chinese Journal of Rehabilitation Theory and Practice 2005;11(4):286-287
ObjectiveTo observe the effect of intrathecal injection with Rocephin on intracranial infection after traumatic brain injury.Methods12 patients with intracranial infection after traumatic brain injury were treated with Rocephin, including Rocephin 2.0g vein injection twice a day and 0.1 g intrathecaluse once a day. The germiculture and drug sensitivity test were made before the treatment and antibiotic was selected.ResultsThere were 6 cases recovered, 2 cases improved markedly, 1 case improved and 3 cases unchanged. The efficient rate was 66.7%. The examination of cerebrospinal fluid showed that the levels of leucocyte and protein decreased, the glucose and chloride increased and encephalic pressure declined. 12 bacteria were verified in 12 cases and 8 bacteria were eliminated after treatment. The bacterium cleared rate was 66.7%. There were no side effects correlatives with Rocephin.ConclusionVein and intrathecal injection with Rocephin is effective on intracranial infection after traumatic brain injury.
7.Exploration of clinical training programmes for residents in rehabilitation medicine
Jianhong ZHANG ; Jianzhong FAN
Chinese Journal of Rehabilitation Theory and Practice 2000;6(2):81-84
现代康复医学20世纪80年代初在我国刚刚起步,康复科住院医师培训有待规范化、科学化。本文就康复医学住院医师培训的原则、实施方案进行初步探讨。
8.The pattern of cellular proliferation and apoptosis in different part of colorectal cancer and its relation to patients' prognosis
Heming YANG ; Jianzhong ZHANG ; Bing XU ; Jianzhong LI ; Chenglin LI
Cancer Research and Clinic 2001;0(02):-
Objective To study the pattern of cellular proliferation and apoptosis in different part of colorectal cancer and its relation to patients' prognosis. Methods The expression of PCNA and Fas protein were investigated by immunohistochemistry in cancer mucosa, cancer adjacent mucosa and cancer distant mucosa of 76 cases of colorectal cancer, and the patients prognosis were investigated too. Results The PCNA expression in cancer mucosa is significantly higher than that in cancer adjacent tissue(P
9.Application of reconstruction interlocking nail for treatment of subtrochanteric femoral fracture
Haibo ZHANG ; Shiqing ZHANG ; Jianzhong XU
Orthopedic Journal of China 2006;0(18):-
[Objective]To investigate the surgical techniques and clinical result of the treatment of subtrochanteric femoral fracture(SFF) with the reconstruction interlocking nail(RIN).[Method]A total of 40 cases(27 males and 13 females,at age ranged from 22 years to 75 years,mean 43.5 years) with SFF were fixed with RIN in our hospital from June 1998 to May 2005.The fractures were classified according to Seinsheimer,the type Ⅱ 5 cases,type Ⅰ 13,type Ⅳ 21 and type Ⅴ 1.33 patients sustained high-energy injury,and 7 low-energy Three cases were open fractures.[Result]The followed-up period ranged from 8 months to 2 years and 6 months with an average of i year and 8 months.The average time for bony union on xray was 4.2 months (from 3.2 to 6.5 months).According to HAN's scoring system there were 26 excellent cases,12 good cases and 2 fair cases.The excellent and good rate was 95%.There was no severe complications,such as incision infection, fixation failure,deformity or ischemic necrosis of femoral head.[Conclusion]RIN is an effective operation for treatment of SFF.This method has obvious advantages of reliable fixation,few complications and the high bone union rate.Meticulous surgical techniques is the key of success for the operation.
10.Effectiveness evaluation for military equipment
Zhiyi ZHANG ; Jianxia ZHANG ; Jianzhong SUN
Chinese Medical Equipment Journal 1993;0(05):-
This paper introduces the effectiveness's concept and classification of military equipment. The generation, development and content of effectiveness study are also presented. The typic methods of evaluating equipment's effectiveness are emphasized. The characteristics of effectiveness evaluations for several kinds of equipments are analyzed based on examples.