1.Clinical application of autoimmune neurological diseases related antibodies
Chinese Journal of Laboratory Medicine 2014;37(8):573-576
Autoimmune neurological diseases have a high morbidity and mortality,but are treatable if diagnosed earlier.Many auto-antibodies may become important laboratory biomarkers for the diagnosis,evaluating severity,prognosis,and even reflecting treatment response,of these diseases.With the development of new knowledge and diagnostic technology,there is a pending need for discovering new pathogenesis-based biomarkers with high sensitivity and specificity on autoimmune diseases of the nervous system.To fulfill this goal,the pathogenesis as well as translational studies in autoimmune diseases of the nervous system are highly warranted.Multi-center randomized double-blinded clinical trials are also necessary to appropriately evaluate the clinical value of these auto-antibodies.W henever possible,these validated autoantibody assays are readily encouraged to perform and popularize these methods in clinical practice.
2.Clinical analysis in patients with anti-N-methyl-D-aspartate receptor encephalitis
Chinese Journal of Neurology 2012;45(5):307-311
Objective To investigate the clinical features of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis and the significance of anti-NMDAR antibody assay in clinical diagnosis.Methods Sixty-two patients were divided into 3 groups of encephalitis,encephalopathy and other central nervous system diseases based on their affliction. Anti-NMDAR antibody was detected by transfected cell-based indirect immunofluorescence assay in the serum and cerebrospinal fluid. The clinical features,laboratory tests,treatment and prognosis of NMDAR encephalitis were analyzed.ResultsAnti-NMDAR antibody was positive in serum and (or) cerebrospinal fluid of 9 patients (9/32,28% ) from encephalitis group.The positive rate of anti-NMDAR antibody in cerebrospinal fluid was higher than that in serum of these patients.Among them,5 patients with higher antibody titer had impaired blood-brain barrier.No tumor was detected in these 9 patients.The most predominant symptoms of anti-NMDAR encephalitis include fever,psychiatric disturbances,seizures,dystonia and autonomic dysfunction.Brain MRI and electroencephalography were also abnormal. Patients were responsive to early immunotherapy. Conclusion Detection of the anti-NMDAR antibody may be important for early diagnosis and treatment of autoimmune encephalitis.
3.Clinical observation of treatment in ovary endometriosis with mifepristone after laparoscopic surgery
Chinese Journal of Postgraduates of Medicine 2010;33(3):16-18
Objective To investigate the role of mifepristone in endometriosis after laparoscopic surgery. Methods One hundred and forty-three women diagnosed with endometriosis after laparoscopic surgery were divided into two groups: one group with 78 cases were given mifepristone at 10 mg once daily (mifepristone group),and the other group with 65 cases were given gestrinone at 2.5 mg,twice every week (gestrinone group). All patients were followed-up 1 to 2 years and observed curative effect, compared the therapy effect on endometriosis as well as the side effects of two drugs. Results The clinical symptom and sign were improved at 3, 6, 12 months in two groups (P< 0.01). The rate of efficiency was 85.9%(67/78) in mifepristone group,and 84.6%(55/65) in gestrinone group, there was no significant difference between two groups (P > 0.05). The rates of acne, weight gain, joint ache, aminotransferase increase was lower in mifepristone group than those in gestrinone group (P <0.01 or <0.05). The recovery time of ovulation or menstruation was shorter in mifepristone group [(12.0 ± 2.9), (26.8 ± 3.9) d]than those in gestrinone group [(25.3 ±3.7), (35.0±4.1) d](P<0.05). Conclusions Mifepristone seems to be an effective,safe,and convenient treatment for endometriosis with low-cost and few side effects. Therefore,it can be used as first choice for treatment of endometriosis after laparoscopic surgery.
4.Detection of the retina degeneration in the early stage of Alzheimer's disease by spectral domain optical coherence tomography
Xiangjun DAI ; Changzheng CHEN
The Journal of Practical Medicine 2017;33(8):1277-1280
Objective To evaluate the applicability and reliability of optical coherence tomography (OCT) technical in detecting the thickness changes of ganglion cell complex (GCC) and outer retinal layers (ORL) in Alzheimer's disease.Method 28 AD patients and 30 healthy control subjects were recruited.SD-OCT was used to measure the macular ganglion cell complex thickness and outer retinal thickness.Cognitive function was evaluated by Mini-Mental State examination (MMSE).Intra-ocular tension and axis length were measured at the same time.Results OCT data shows statistic difference of ganglion cell complex thickness between AD group and control group,while there is no significant difference of outer retinal layers thickness between the two groups.Significant correlations between GCC thickness and MMSE scores were observed.There was no significant correlation between the MMSE scores and the ocular tension.Conclusions Retinal thickness reduction of AD patients can be detected by OTC,and could be related with disease progression.OCT can be used to screen the early stage AD patient.
5.Primary myoepithelial carcinoma of the preauricular area in a young female: a rare case report.
Xiangjun CHEN ; Jianjian HUANG ; Guoyi LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(16):1262-1263
A female patient with a dark red mass in the of preauricular area for over 3 months was hospitalized. Enhanced CT scan and ultrasonography showed that the mass had clear boundaries and was rich in blood supply. The patient was misdiagnosed as preauricular hemangioma, then the mass was removed as a benign tumor and found irrelevant to parot, SMA(+), Vim(+), S-100(+), indicating myoepithelial carcinoma. So a radical excision was performed to get negative incised margin. The patient didn't undergo postoperative chemotherapy but demonstrated no evidence of recurrence over a 12-month follow-up.
Adult
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Ear Neoplasms
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Female
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Follow-Up Studies
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Humans
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Myoepithelioma
6.The clinical curative effect of the low temperature plasma ablation adenoidectomy and tympanic membrane indwelling catheter in parallel or not used on childhood patients with secretory otitis media.
Lei TIAN ; Xiangjun CHEN ; Guoyi LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(5):415-417
OBJECTIVE:
To observe the clinical effect of endoscope-guided low temperature plasma ablateing adenoidectomy with tympanic membrane incision drainage and tympanic membrane indwelling catheter to treat secretory otitis media of children.
METHOD:
Fifty-two cases (98 ears) of secretory otitis media in children with adenoid hypertrophy were treated. Respectively endoscope-guided tympanic membrane incision drainage parallel low temperature plasma ablateing adenoidectomy and endoscope-guided tympanic membrane indwelling catheter parallel low temperature plasma ablateing adenoidectomy.
RESULT:
In group A, 30 cases of 58 ears, cure 36 ears, improving 14 ears, invalid 8 ears, the effective rate was 86.2%. In group B, 22 cases of 40 ears, cured 32 ears, improvement in 6 ears, invalid 2 ears, the effective rate was 95.0%. According to statistical analysis of curative effect, there was no significant difference by effective rate between two groups.
CONCLUSION
For the patients with secretory otitis media caused by adenoidal hypertrophy, the endoscope-guided tympanic membrane incision drainage parallel low temperature plasma ablateing adenoidectomy can be regarded as a kind of method to reduce the risk of tympanic membrane perforation.
Adenoidectomy
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methods
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Adenoids
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pathology
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Catheters, Indwelling
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Child
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Cold Temperature
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Humans
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Middle Ear Ventilation
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methods
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Otitis Media with Effusion
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surgery
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Tympanic Membrane Perforation
7.Pingyangmycin Local Injection Under Suspension Microlaryngoscopy for Hemangioma at Laryngopharyngeal and Laryngeal in 22 Cases
Xiangjun CHEN ; Jianjian HUANG ; Guoyi LI
Herald of Medicine 2015;(5):621-623
Objective To study the therapeutic effect of pingyangmycin local injection under suspension microlaryngoscopy for treatment of laryngopharyngeal and laryngeal hemangioma. Methods The total of 44 cases of patients with laryngopharyngeal or laryngeal hemangioma were randomly divided into the experimental group ( n=22 ) and the control group (n=22). They were treated with bleomycin 5 mg or pingyangmycin 4-8 mg injection under suspension microlaryngoscopy in the hemangioma, respectively. If the treatments were not curative, repeated one more times in intermittent 15 d, but not more than 3 times. Therapeutic effect and adverse effect were recorded and analyzed. Results The total effective rate (95. 4%)in the experimental group was significantly better than that (59. 1%) in the control group (P<0. 05),and side reaction in two groups showed no significant variation. Conclusion Pingyangmycin local injection for treating laryngopharyngeal and laryngeal hemangioma is effective, less adverse reaction.
8.Hepatic cell apoptosis was triggerred by HBx accumulation and independent on verapamil.
Haiping, WANG ; Xiaoping, CHEN ; Xiangjun, BAI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2004;24(3):281-3
In order to study the roles of HBx and calcium inhibitor verapamil in apoptosis of human normal hepatic cells, L02-off, a pTet-off stably integrated human hepatic cell line was established, in which HBx expression was tightly induced by Doxycycline. The effect of different amounts of HBx and verapamil on apoptosis of human normal hepatic cells was detected. The study showed that apoptosis was triggered by accumulation of intracellular HBx, while verapamil had no effects on the apoptotic process. It was concluded that apoptosis mediated by HBx was dose-dependent but calcium-independent.
Apoptosis/*drug effects
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Calcium/pharmacology
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Calcium Channel Blockers/pharmacology
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Cells, Cultured
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Dose-Response Relationship, Drug
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Hepatitis B Antigens/pharmacology
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Hepatocytes/*cytology
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Trans-Activators/*pharmacology
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Verapamil/*pharmacology
9.Efficacy of VSD Occluder via Lower Ministernotomy:Short-term Evaluation
Xiangjun ZENG ; Liang TAO ; Xufa CHEN
Chinese Journal of Minimally Invasive Surgery 2001;0(05):-
Objective To evaluate the efficacy of ventricle septal defect(VSD) occluder through lower ministernotomy for patients with perimembranous VSD. Methods From January 2007 to August 2008,41 patients with perimembranous VSD(14 male,27 female,weighed 9.0 to 71 kg with a mean of 46.3?16.1) underwent a closure of perimembranous VSD through lower ministernotomy using Amplatzer occluder.Before the operation,all the cases had been confirmed as having a 3-to 8.5-cm perimembranous VSD by transthoracic echocardiography(TTE).Under general anaesthesia,a small incision was made at the lower sternum to expose the right ventricle,and then occluder was placed in the right ventricle.TEE,electrocardiography and chest X-ray were performed before discharge and 1 month after the operation.Results The procedure was completed successfully in all the patients with a mean operation time of(6.2?3.3) hours(ranged from 2.5 to 17 hours).The ICU stay was(15.1?4.3) in average(8-21 hours).The mean drainage volume after the surgery was(80?33) ml(35-210 ml).Follow-up was available in all the cases for(7.9?4.1) months(range,3-15 months).During the period,no A-V block,new AI,occluder displacement,embolization,tricuspid incompetence or residual occurred. Conclusions VSD occluder is feasible and safe for closure of perimembranous ventricular septal defects through lower ministernotomy.
10.Main Pathogens in Urinary Tract Infections:Analysis of Distributing Characteristics and Drug Resistance
Yuyu CHEN ; Qiugui ZHANG ; Xiangjun YAN
Chinese Journal of Nosocomiology 2009;0(13):-
OBJECTIVE To investigate the bacterial distribution and antibiotic resistance of main pathogens from urinary tract infection (UTI) in our hospital for the guidance of rational use of antibiotics. METHODS The antibiotic resistance of clinical pathogen isolates from urinary tract infection by routine bacterium culture from Jan 2006 to Dec 2007 were studied retrospectively. The extended spectrum ?-lactamases (ESBLs) were detected out to the Gram-negative bacilli. RESULTS There were 722 strains of pathogens in the whole 2773 urinary samples with the isolating rate 26.0%. Most of the Urinary tract infections of patients were caused by Gram-negative bacilli (69.4%),then by Gram-positive cocci (16.3%) and fungi (14.3%). The most common pathogens in urinary tract infection were Escherichia coli (47.9%),Enterococcus faecais (7.9%),E. faecium (4.0%),Proteus mirabilis (3.9%),and Pseudomonas aeruginosa (3.5%). The Gram-negative bacilli were found to be sensitive to imipenem and meropenem,but highly resistant to the most other antibiotics,while P. mirabilis was susceptive to amikacin and cephalosporins. The Gram-positive cocci were more sensitive to nitrofuvantoin and vancomycin,but highly resistant to penicillin,oxacillin and SMT. CONCLUSIONS E. coli is still the primary urinary pathogen among patients,and highly resistant to a lot of antibiotics,We should carry out cultivation,isolation,and antimicrobial susceptibility testing as soon as possible to guide reasonable clinical drug therapy.