2.Mobi-C cervical disc replacement:a five-year follow-up report in 19 cases
Da BAO ; Yuanzheng MA ; Xing CHEN
Chinese Journal of Tissue Engineering Research 2015;(39):6291-6295
BACKGROUND:Anterior cervical discectomy and intervertebral disc replacement have been extensively used in treatment of cervical degenerative disease. Its short-term therapeutic effects are encouraging, but it lacks of long-term and comprehensive evaluation.
OBJECTIVE:To observe the folow-up results of a group of cases of anterior cervical discectomy and Mobi-C intervertebral disc replacement for more than 5 years.
METHODS:A total of 25 cases of cervical spondylosis were treated in the 309 Hospital of Chinese PLA from January to September 2009. 19 of them were folowed up. Al patients received anterior cervical discectomy and Mobi-C intervertebral disc replacement. Twenty-three Mobi-C intervertebral disc prostheses were implanted. The range of motion was measured using lateral X-ray films during extension and flexion. Ectopic ossification was assessed by McAfee method. According to the cervical vertebra MRI images, the degeneration of adjacent segments was determined using Pearce classification. NDI score was used to evaluate the function of cervical spine. Pain improvement was evaluated using visual analogue scale score.
RESULTS AND CONCLUSION: A total of 19 patients were folowed up for 59-65 months, averagely 62 months. No significant difference in range of motion was detected before surgery and during final folow-up (P > 0.05). Ectopic ossification in two cases and the degeneration of adjacent segments in one case were found during final folow-up. No prosthesis loosening or displacement appeared. Visual analogue scale score and NDI score were significantly lower during final folow-up compared with that before surgery (P < 0.05). These results indicate that under the premise of reasonable choice of indications, the therapeutic effect of Mobi-C intervertebral disc replacement for degenerative cervical spondylosis was satisfactory in five-year folow-up. The range of motion was good, and the incidences of ectopic ossification and the degeneration of adjacent segments were low.
3.Advances in scar prevention, early intervention and clinical assessment
Linxiao MA ; Jihong BAO ; Bin CHEN
Chinese Journal of Tissue Engineering Research 2015;19(20):3253-3257
BACKGROUND:Potential mechanisms of scar formation and scar prevention strategies have become more important in current medical research. Scar assessment scales have the potential to contribute to better evaluation of scar properties in both research and clinical diagnosis. OBJECTIVE: To summarize the literatures addressing scar prevention and clinical assessment. METHODS: A computer search of CNKI database from 2000 to 2014, PubMed database from 1975 to 2014 and Foreign Medical Journal Ful-Text Service Database from 2000 to 2014 was performed using the keywords of scar, prevention, treat, cicatrix, assessment, measure in Chinese and English to retrieve articles related to scar prevention strategies and scar assessment scales. Totaly 39 articles meeting the inclusive criteria were included in result analysis. RESULTS AND CONCLUSION: During wound healing, the unbalance between colagen anabolism and katabolism can lead to the formation of pathological scar. Prevention and treatment of pathological scars should be combined, and early intervention was used in wound healing. General scar assessment scales include Vancouver Scar Scale, Visual Analog Scale, Patient and Observer Scar Assessment Scale, Manchester Scar Assessment Scale, Stony Brook Scar Assessment Scale, al of which have the potential to contribute to better evaluation of scar properties in both research and clinical diagnosis.
4.Clinical Observation of Zishen Huoxue Jiedu Method for the Treatment of Chronic Renal Failure
Jianwei MA ; Limei XU ; Bao CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(02):-
Objective To observe the therapeutic effect of the Zishen Huoxue Jiedu (ZSHXJD) method on patients with chronic renal failure (CRF). Methods 252 cases of CRF were treated by ZSHXJD method. TCM symptom, the serum level of Cr, BUN, ET, ANP, IL-8, ?2-mg, HGB and level of urine protein were detected. Results After the treatment, TCM symptom, the level of Cr, BUN, ET, ANP, IL-8, ?2-mg and urine protein were found markedly lower than that before the treatment (P
5.Measurement of total respiratory compliance during intratracheal anesthesia in children
Yu CHEN ; Jiajun MA ; Zemin BAO
Chinese Journal of Anesthesiology 1994;0(06):-
0.05). From clinical point of view,it is suggested that the weight can be advantageous to forecasting Cr of children.
6.Anterior locking plates with titanium mesh in treatment of 23 patients with cervical fractures and dislocations: X-ray and 1-year follow-up evaluations
Hongwei LI ; Da BAO ; Yuanzheng MA ; Xing CHEN
Chinese Journal of Tissue Engineering Research 2009;13(39):7679-7682
From January 2005 to January 2008, 23 cases of fractures and dislocations of cervical spine treated with anterior decompression, reconstruction of bone graft with titanium mesh, and titanium locking plates fixation in Department of Orthopaedics, the 309 Hospital of Chinese PLA were retrospectively analyzed, including 16 males and 7 females, aged 41.9 years (ranging 25 ?65 years). The clinical effect and application value of this treatment was evaluated; the conditions at preoperative, immediate postoperative and follow-up were evaluated by JOA grade, and these radiographs were taken. Lordosis (kyphosis) of the fusion segment with Cobb's angle, and lordosis (kyphosis) of cervical spine with D value were measured to evaluate effect of reconstruction and cervical spine physiological curve. All cases were followed-up for 20.5 months (ranging 1-3 years). Clinical stability was reached in all cases during the follow-up. There were significant differences between preoperative and immediate postoperative, between preoperative and follow-up groups in terms of JOA grade, Cobb's angle and D value (P < 0.05). The JOA grade of immediate postoperative was improved compared with that during follow-up (P < 0.05). The mean improvement rate was 63% at 1 year of follow up. A good curative effect was obtained by using anterior locking plate with titanium mesh systems in treatment of cervical fractures and dislocations and a good effect of restoring and maintaining the lordosis of cervical spine can be also obtained.
7.The Screening of Human Anti-Hepatoma Fd Fragments Guided with the Chemeric Light Chain of HAb18
Guoqiang BAO ; Qingjiu MA ; Jinliang XING ; Xiangmin YANG ; Zhinan CHEN
Chinese Journal of Cancer Biotherapy 1995;0(03):-
Objective: To select anti-HAb18G (hepatoma associated antigen) human Fd fragments with guided selection of L chain of chimeric Fab-HAb18. Methods: The human Fd repertories genes were amplified by RT-PCR from PBMC of hepatoma patients, and cloned into the vector pComb3X with chimeric L chain to construct the human-mouse hybrid Fab phage library. HAblSGE, extracellular region of HAblSG, was used as antigen to screen. The positive clones was obtained by ELISA and FCM with p Ⅲ-fusion Fab antibody. The DNA sequences were analyzed. Results: A human-mouse Fab antibody library were constructed with 2?107 PFU. After 6 rounds panning, 7 positive clones were obtained with ELISA and FCM. And sequences of 2 clones with better affinity were same. The CHI belonged to the IgG2 class as the parent Fd, and the variable region belonged to VH3 family. Conclusions: Through the construction of the HuMFab phage antibody library and chemeric L chain-guided selection, we get the available human Fd fragments for subsequent research.
8.Research evolution of ultrasound beamforming technology.
Jia-chen MA ; Yi SHEN ; Bao-ku SU
Chinese Journal of Medical Instrumentation 2005;29(6):443-438
In this paper, four typical beamformers are explained according to the development process of ultrasound imaging systems. Comparison and analysis are made from several aspects, such as performance, integration, cost, and so on. Furthermore, characteristics of an analog and three digital beamformers are respectively summarized. At last, the development direction of beamformers is pointed out.
Ultrasonics
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instrumentation
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Ultrasonography
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methods
9.Effect of different pressure oxygen pre-breathe in diving decompression sickness of rats.
Fang-fang WANG ; Yi-qun FANG ; Pu YOU ; Xiao-chen BAO ; Jun MA ; Shi ZHANG
Chinese Journal of Applied Physiology 2015;31(5):401-404
OBJECTIVETo investigate the effect of different pressure oxygen pre-breathing in preventing decompression sickness of rats.
METHODSForty male SD rats were randomly divided into 4 groups: decompression sickness (DCS) group and three oxygen pre-breathing groups with 1 ATA, 2 ATA and 3 ATA pressure respectively. The rats of DCS group were placed in the hyperbaric chamber and the chamber was compressed evenly within 3 minutes to depths of 7 absolute atmosphere(ATA) and held at the designated depth for 60 min, then decompressed (3 min) at constant speed to the surface pressure. After that, the rats were taken out for further detection. While the rats of oxygen pretreatment groups pre-breathed different pressure oxygen for 20 min before entering into chamber. The mortality and behavioral of rats were observed with 30 min post decompression. The dry/wet ratio of the lung, protein levels in the bronchoalveolar lavage fluid (BALF), and the inflammatory cytokine tumor necrosis factor (TNF-alpha) expression were also tested.
RESULTSCompared with that of the DCS group, the mortality and morbidity of oxygen pre-breathe groups didn't change obviously. But the total BALF protein level and the inflammatory cytokine TNF-alpha expression of 1 ATA oxygen pre-breathe group were obviously decreased, while the dry/wet ratio of lung as obviously increased instead (P < 0.05).
CONCLUSIONAlthough preoxygenation can' t obviously change the mortality and mobidity of rats, normal pressure oxygen pre-breathing can mitigate the protein infiltration in BALF and the expression of inflammatory cytokine in lung tissue.
Animals ; Bronchoalveolar Lavage Fluid ; chemistry ; Decompression Sickness ; Diving ; Lung ; pathology ; Oxygen ; physiology ; Pressure ; Rats ; Rats, Sprague-Dawley ; Tumor Necrosis Factor-alpha ; metabolism
10.Clinical efficacy of “Shamrock” ultrasound images-guided lumbar sympathetic ganglion blockade
Mengmeng BAO ; Yun WANG ; Danxu MA ; Xueyang LI ; Chen ZHANG ; Yun YUE
Chinese Journal of Anesthesiology 2016;36(9):1130-1133
Objective To evaluate the clinical efficacy of “Shamrock” ultrasound images?guided lumbar sympathetic ganglion blockade ( LSGB) . Methods Sixty patients of both sexes, aged 18-60 yr, weighing 50-70 kg, of American Society of Anesthesiologists physical statusⅠorⅡ, undergoing unilater?al LSGB, were divided into groupⅠ ( n=30) and group Ⅱ ( n=30) using a random number table. In group Ⅰ, unilateral LSGB was performed at the L2 level under ultrasound guidance with paramedian trans?verse scanning. In groupⅡ, unilateral LSGB was performed at the L2 level under ultrasound guidance with“Shamrock” ultrasound images. After final needle position was confirmed, 2% lidocaine 6?0 ml was ad?ministered in each patient. At 20 min before and after LSGB, the visual analogue scale scores and skin temperature of the big toe of the affected foot were recorded, and the successful blockade and visibility of important paravertebral structures on ultrasound images were recorded during puncture. Results The visu?al analogue scale scores were significantly lower, and the skin temperature on the affected side was signifi?cantly higher after LSGB than before LSGB in both groups ( P<0?05) . The important paravertebral struc?tures such as erector spinae, quadratus lumborum, psoas major, transverse process of L2 vertebrae, and the curved edge of L2 vertebrae were visible in both groups. The visibility rate of the inferior vena cava or ab?dominal aorta on ultrasound images and the success rate of blockade were significantly lower in group Ⅰthan in group Ⅱ (P<0?01). Conclusion Compared with paramedian transverse scanning, LSGB has some advantages such as real?time monitoring, higher success rate of blockade, better efficacy and avoiding damage to great vessels when performed under “Shamrock” ultrasound image guidance.