2.EFFECTS OF NERVE INJURY ON THE EXPRESSION OF Trk RECEPTOR PROTEINS LOCALIZED ON THE TRIGEMINAL MESENCEPHALIC NEURONS
Fuxing ZHANG ; Yulin DONG ; Feng GUO ; Youwang PANG ; Jinlian LI
Chinese Journal of Neuroanatomy 2005;21(6):625-630
Immunofluorescence histochemistry combined with retrograde tracing technique was employed to observe the effects of masseteric nerve transection on the expression of Trk ( tropomyosin-related kinase) receptor proteins, namely TrkA, TrkB and TrkC in the trigeminal mesencephalic nucleus ( Me5 ) of the rat. At 7 and 14 days following transection of masseteric nerve through which Fluorogold (FG) was applied to identify the Me5 neurons innervating masseter, brain sections were immunohistochemically processed to detect the three Trk isoforms in FG-labeled Me5 neurons. With the percentage of double-labeled neurons to the total number of FG-labeled neurons as the index,we demonstrated ( 1 ) a significant increase in the percentage of TrkA-immunoreactive (IR) Me5 neurons at both 7 and 14 days after nerve transection, (2) no significant, but gradual, increase in the percentage of TrkB-IR Me5 neruons with longer survival time post transection and ( 3 ) little change of TrkC expression. The current findings indicate that axotomy differently affected the expression of the individual Trk receptors and these expression patterns may reflect an adaptation of the Me5 neurons to the peripheral nerve injury.
4.Thirty cases of knee osteoarthritis treated by acupuncture and warming needle moxibustion.
Guo-ping XIONG ; Qin HUANG ; Yuan-feng DONG
Chinese Acupuncture & Moxibustion 2011;31(6):551-552
Acupuncture Therapy
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Adult
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Aged
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Female
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Humans
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Male
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Middle Aged
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Moxibustion
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Osteoarthritis, Knee
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therapy
6.Effect of flunarizine on the epileptiform discharges in cortex and hippocampus of rat with penicillin induced epilepsy.
Guo-feng WU ; Shi-hai SHAN ; You-zhong DONG
Chinese Journal of Applied Physiology 2004;20(2):179-204
Animals
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Cerebral Cortex
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drug effects
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physiology
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Epilepsy
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chemically induced
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physiopathology
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Female
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Flunarizine
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pharmacology
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Hippocampus
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drug effects
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physiology
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Male
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Penicillins
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adverse effects
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Rats
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Rats, Wistar
7.Study of the association between a disintegrin and metalloprotease 19 gene polymorphisms and chronic obstructive pulmonary disease susceptibility
Feng GUO ; Limin DONG ; Dongming LIU ; Jiulong KUANG
Chinese Journal of Geriatrics 2013;(1):41-44
Objective To explore the association between genetic polymorphism of a disintegrin and metalloprotease 19 (ADAM19) and chronic obstructive pulmonary disease (COPD).Methods Totally 116 patients with COPD (the COPD group) and 82 healthy volunteers (the control group) were enrolled in this study.Fasting peripheral blood was taken and whole blood corpuscle genomic DNA was extracted.The genetic polymorphism of ADAM19 (rs1422795) was determined by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP).Results The difference in genotypes frequencies (GG,AG,AA) distribution of the ADAM19 between patients (73.3%,22.4%,and 4.3%) and controls (68.3%,28.0%,and 3.7%) showed no statistically significance (x2 =0.887,P=0.634).There were also no significant differences in the distribution of the different allele gene frequencies(A,G) between patients (84.5%,15.5%) and controls(82.3%,17.7%)(x2=0.582,P=0.446).No differences were found in the distribution of the genotypes between patients of different COPD severity classified according to FEV1 (% pred),and healthy controls(x2=3.325,P=0.787).Conclusions ADAM19 (rs1422795) genetic polymorphism is not related to the development of COPD,which may not be the COPD-related gene.
8.Transurethral Implanted Stent in the Treatment of Benign Prostatic Hyperplasia in Elderly Patients under X-ray Guided
Xiquan ZHANG ; Ge DONG ; Feng GUO ; Wei ZHU ; Xiaolin PAN
Journal of Practical Radiology 2001;0(05):-
Objective To evaluate the clinical effect and feasibility in treating urethral stricture caused by benign prostatic hyperplasia in elder with transurethral implanted stent(Memotherm) under X-ray guided.Methods 47 patients included in this study,they ranged in age from 72 to 93 years,with an average age of 78.3 years,the symptom of dysuria ranged from 7 to 21 years.After 1% Lidocaine urethra mucous membrane anaesthesia,the processes of transurethral implanted stents at the most narrowing area of the urethra under X-ray guided were performed.Results The treating processes were successful in all cases(100%) one time,of them,the micturition in 43 cases was free and could act on one's own immediately after stent implantation.None having urethral restricture and lithiasis occured.Conclusion The clinical therapeutic effect was obvious using the memory alloy net-like stent for the treatment of urethral stricture caused by benign prostatic hyperplasia,it is worth promoting application in clinic.
9.Transplantation of marrow mesenchymal stem cells through renal artery in repair of acute tubular necrosis in nude mice
Xinggang DONG ; Jian FENG ; Zhiman YU ; Yuan GUO
Academic Journal of Second Military Medical University 1985;0(06):-
Objective:To investigate whether transplantation of mesenchymal stem cells(MSCs)through renal arteries can protect kidney from acute tubular necrosis(ATN),so as to lay a foundation for MSC transplantation in treatment of ATN.Methods:Five-week-old nude mice were randomly divided into three groups:normal control group(n=10),acute tubular necrosis(ATN)model group without(n=10)and with MSCs treatment group(n=11).ATN nude mice were induced with 50% glycerin.MSCs labeled with enhanced green fluorescent proteins(EGFP)were injected into kidney through renal arteries.Serum creatinine was determined in all groups and pathological changes of renal tissues were detected using H-E staining.The amount and distribution of the EGFP-marked MSCs in renal tissues were determined with fluorescence microscope.Results:Degeneration and exfoliation of renal tubular epithelial cells,and even renal tubular tamponade with cast-off cells were observed in the ATN group;these pathological changes were mainly located at renal cortex and juncture of renal cortex and medulla.The damages were greatly alleviated in the ATN+MSCs transplantation group,with no swelling of epithelial cells,nuclear condensation or edema.Fourteen days after MSCs transplantation,EGFP positive cells were increased in renal tubules of recipient mice.Conclusion:The MSCs transplantation via renal artery can locate in renal tubular epithelium,and promote the repair of injured renal tubular epithelial cells.
10.Efficacy of endovascular interventional minimally invasive techniques in treatment of acute brachial artery injury
Xiquan ZHANG ; Shitang GE ; Zhong CHEN ; Ge DONG ; Feng GUO
Chinese Journal of Trauma 2017;33(3):281-284
Objective To evaluate the efficacy of endovascular interventional minimally invasive techniques in treatment of acute brachial artery injury.Methods A retrospective case series study was designed to analyzed data of 16 cases (11 males and 5 females) sustaining acute brachial artery injury treated from March 2011 to August 2016.Mean age was 47.9 years (range,27-66 years).Left upper extremity vascular injury occurred in 7 cases and right upper extremity vascular injury occurred in 9.There were 13 cases of arterial intima injury and 3 of arterial pseudoaneurysm.All patients underwent endovascular therapy including stent implantation and balloon dilatation.Angiography was used to evaluate the repair of brachial artery and the operation time was recorded.Improvements of distal limb arterial pulse and limb ischemic symptoms were observed,and the patients who were followed up with stent lumen stenosis more than 50% received endovascular treatment again.Results The procedures was successful in all patients,with operation time of 30-75 minutes (mean,45 minutes).After the insertion of a stent,recovered brachial artery blood flow and disappeared pseudoaneurysm were observed on angiography,without occurrence of stent stenosis or contrast extravasation.Symptoms of local pain and numbness were alleviated,and blood supply of the distal brachial artery was improved after operation.All patients were followed up for 3-36 months(mean,16.7 months).The false aneurysm did not recur.Two cases of stent stenosis more than 50% had a second balloon dilation procedure and the blood flow returned to normal.Stent patency was found in 14 cases with stent stenosis of less than 50%.During the follow-up period,no ischemic necrosis,displacement of the stent or stent fracture were found.Conclusion For acute brachial artery injury,endovascular management exhibits higher technical success rate and good clinical outcome with a low incidence of complications.